УСТРОЙСТВО ДЛЯ ЛЕЧЕНИЯ СОСУДИСТОЙ СЕТИ И ПРОТОКОВ ОРГАНИЗМА

Изобретение относится к области медицины, а именно к устройствам для лечения сосудистой сети и других протоков, которые могут быть использованы для лечения закупорки сосудистой сети, а также аневризм, образующихся в головном мозге. Устройство для лечения сосудистой сети и протоков организма содержит удлиненный саморасширяющийся элемент, выполненный с возможностью расширения из первого положения подачи во второе положение установки. В первом положении подачи удлиненный саморасширяющийся элемент находится в нерасширенном положении и имеет первый диаметр. Во втором положении расширяющийся элемент находится в расширенном по радиусу положении и имеет второй диаметр, превышающий первый диаметр. Удлиненный саморасширяющийся элемент содержит множество ячеистых структур. Удлиненный саморасширяющийся элемент имеет проксимальный оконечный участок с проксимальным концом и цилиндрический участок основного корпуса. Ячеистые структуры на цилиндрическом участке основного корпуса проходят по окружности ...

ЭНДОПРОТЕЗ И УСТРОЙСТВО ДЛЯ ЕГО ДОСТАВКИ

... 1. Эндопротез (1), в частности, васкулярный или сердечный стент, содержащий по меньшей мере один корпус (2, 24, 25), отличающийся тем, что по меньшей мере одна область внешней поверхности, предпочтительно вся внешняя поверхность по меньшей мере одной части корпуса (2, 24, 25) содержит тромбогенные элементы (3), равномерно распределенные по меньшей мере по одной области внешней поверхности, предпочтительно, по всей внешней поверхности.2. Эндопротез по п. 1, отличающийся тем, что тромбогенные элементы (3) являются удлиненными.3. Эндопротез по п. 1, отличающийся тем, что каждый тромбогенный элемент (3) прикреплен к части корпуса (2, 24, 25) в по меньшей мере одной точке (31) фиксации.4. Эндопротез (1) по любому из пп. 1-3, отличающийся тем, что тромбогенные элементы (3) расположены по меньшей мере частично на внешней поверхности по меньшей мере одной части корпуса (2, 24, 25) эндопротеза, при этом эндопротез снабжен по меньшей мере одним избирательно деактивируемым удерживающим средством ( ...

МНОГОЦЕЛЕВОЙ СОСУДИСТЫЙ ИМПЛАНТ

Изобретение относится к медицине, а именно к многоцелевым сосудистым имплантам, и может быть использовано для улавливания сгустков крови в сосудах или в качестве стента. В сосудистом импланте каркас 1 образован совокупностью непересекающихся между собой продольных элементов 2 из биоразлагаемого материала, концы одной из сторон которых соединены между собой в одной точке, и, по меньше мере, двумя поперечными элементами 4 из биоразлагаемого материала. Поперечные элементы 4 выполнены упругими с возможностью обеспечения контакта, по меньшей мере, центральной части каждого из продольных элементов 2 с внутренней поверхностью полости сосуда, достаточного для самоцентрирования каркаса 1 импланта по сосуду с момента его установки в полость сосуда до момента его полного рассасывания. Концы другой стороны продольных элементов 2 также соединены между собой в одной точке симметрично противоположным концам. Продольные элементы 2 выполнены упругими. Соотношение максимального расстояния между двумя внешними ...

СИСТЕМЫ И СПОСОБЫ ПОЛУЧЕНИЯ И ПРИМЕНЕНИЯ РАСШИРИТЕЛЬНОГО КОЛЬЦА

Gefässprothese zur Behandlung eines aneurysmas

Stent comprises support elements which are arranged side by side in its axial direction and are joined by resorbable connector elements

Stent comprises support elements (2) which are arranged side by side in its axial direction, and are joined by connector elements (4) made of a resorbable material.

Stent-Graft mit verbesserter Befestigung in einem Körpergefäss

IMPLANTIERBARE VORRICHTUNG ZUM FESTERHALTEN ODER WIEDERHERSTELLEN EINES NORMALEN KÖRPERGEFÄSSQUERSCHNITTES

IMPROVED STENT FOR STENT GRAFT

EXPAND-CASH STENT

INTRAVASKULÄRER STENT

STENT GRAFT WITH FOLDED FABRIC

PROCEDURE FOR THE ATTACHMENT OF A MEDICINE ON A PROSTHESIS OF MEANS OF A FL�SSIGSTRAHLS

ONE-WAY STRÖMUNGSPROSTHETI IMPLANT BASED ON A MULTI-LAMELLA FRAMEWORK

ENDOLUMINALE PROSTHESIS

FALTUND FLEXIBLE ONE HEART FLAP PROSTHESES WITH NOT FLEXIBLE STENT COLUMNS AND RECWITHDRAWAL FUNCTION

PROSTHESIS FOR THE REPAIR A THORAX ANEURYSM

SUPRANIERENPROTHESE AND KIDNEY ARTERIENBYPASS

IMPLANTIERBARE INTRALUMINALE PROSTHESIS

BILATERAL EXTENSION PROSTHESIS

STENT GRAFT WITH A SCHR�GABZWEIG

IMPROVED STENT FOR STENT GRAFT

FLEXIBLE INTRALUMINALE STENTS

EXPAND-CASH STENT

Spiral-based thin-film mesh systems and related methods

A spiral-based thin-film mesh for medical devices and related methods is provided. The spiral -based thin-film mesh may be used as a stent cover for a stent device. The thin-film mesh may include a plurality of spirals. The spirals allow the thin-film mesh to expand omni-directionally. In one or more embodiments, the spirals may be logarithmic spirals, golden spirals, approximated golden spirals, box Phi spirals, or Fibonacci spirals. The thin-film mesh may be formed from thin-film Nitinol (TFN), and may be fabricated via sputter deposition on a micropatterned wafer.

INTRAVASCULAR RADIALLY EXPANDABLE STENT AND METHOD OF USE

Endoluminal device and method

An endoluminal device can be configured for precise positioning during deployment within a vessel. The endoluminal device can be a tack, stent, vascular implant or other type of implant. The endoluminal device can have circumferential member with an undulating configuration having multiple inward and outward apexes and struts extending therebetween. Two of the struts can be used to establish a foot for the precise positioning of the device during deployment. A method of placing the endoluminal device can include withdrawing an outer sheath such that a portion of the endoluminal device is expanded prior to the rest of the endoluminal device. 2a F/Gol25F ...

Implantable damping device for modifying blood flow characteristics

An implantable damping device (100) for modifying blood flow characteristics in a vessel (50), the device (100) including: a first expansion chamber (110) having a first chamber proximal end (130), a first chamber distal end (170) and a first chamber intermediate portion (140) having a larger cross-sectional area than the first chamber proximal and distal ends (130), wherein the first expansion chamber (110) generates a pressure drop in blood flow downstream of the device (100) relative to blood flow upstream of the device (100).

Endoluminal device and method

An endoluminal device can be configured for precise positioning during deployment within a vessel. The endoluminal device can be a tack, stent, vascular implant or other type of implant. The endoluminal device can have circumferential member with an undulating configuration having multiple inward and outward apexes and struts extending therebetween. Two of the struts can be used to establish a foot for the precise positioning of the device during deployment. A method of placing the endoluminal device can include withdrawing an outer sheath such that a portion of the endoluminal device is expanded prior to the rest of the endoluminal device. 2a F/Gol25F ...

Expandable stent and method for delivery of same technical field

Expandable and retrievable stent

Vascular and bodily duct treatment devices and methods

Devices including, but not limited to, a self-expandable member having a proximal end portion and a main body portion. The self-expandable member is movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient. The expandable member includes a plurality of cell structures with the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member and the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member.

Endoprosthesis and delivery device for implanting such endoprosthesis

The invention relates to an endoprosthesis (1), in particular a vascular or cardiac endoprosthesis (1), having a body (2) and also one or more thrombogenic elements (3) that are fixed to the endoprosthesis (1) and that are able to extend a distance away from the body outside the latter. The endoprothesis comprises means (33) for selectively retaining the thrombogenic elements near the body (2). The release of the one or more thrombogenic elements, after the endoprosthesis has been fitted in place by a conventional method via a sheath, promotes thrombosis.

Endoluminal device and method

An endoluminal device can be configured for precise positioning during deployment within a vessel. The endoluminal device can be a tack, stent, vascular implant or other type of implant. The endoluminal device can have circumferential member with an undulating configuration having multiple inward and outward apexes and struts extending therebetween. Two of the struts can be used to establish a foot for the precise positioning of the device during deployment. A method of placing the endoluminal device can include withdrawing an outer sheath such that a portion of the endoluminal device is expanded prior to the rest of the endoluminal device.

Thrombectomy device

The invention relates to a thrombectomy device having a substantially cylindrical stent structure (1). The stent structure comprises a plurality of meshes (3, 4) and also two connectors (5, 5') that are disposed at different meshes (3) at the proximal end of the stent structure (1). The device also has a guide wire (2), which comprises a coupling element (11) to which the connectors (5, 5') are coupled, and a slit (7), which extends helically over the lateral face (8) of the stent structure (1), and a tensioning clip (9) that spans the slit (7) at the proximal end.

Implantable vein frame

An implantable vein frame is contemplated in which two ring members are rigidly joined in spaced axial alignment via one or more interconnecting members. One of the one or more interconnecting members defines a protruding region that acts upon the implant placed within the frame and/or the vein that the vein frame is placed within to define a sinus region. The implant is placed within and scaffolded by the vein frame, and the vein frame is subsequently inserted within a vein via a venotomy, or interposed between two vein segments via vein interposition graft. The vein frame acts to support the structural integrity of the implant, and to scaffold and anchor the implant in place with the vein.

Telescoping prosthetic valve and delivery system

A prosthetic valve for replacing a native valve of a patient's anatomy comprises: an anchor frame subcomponent; a valve frame subcomponent nestable within the anchor frame subcomponent; and a tissue retention feature configured to engage tissue associated with the native valve and secure the leaflet of the native valve between the valve frame subcomponent and the anchor frame subcomponent. 18222086_1 (GHMatters) P113410.AU.1 ...

Low-profile, non-stented prosthesis for transluminal implantation

Expandable stent and method for delivery of same

Method and apparatus for recapture of hooked endoprosthesis

REINFORCED GRAFT

A graft is provided with a flexible sheet (10) of graft material to which is sewn a reinforcing wire (12), preferably of shape-memory alloy. Sewing of the wire (12) is carried out while the sheet (10) is substantially planar, thus by conventional embroidery machines. The sheet (10) is subsequently rolled into a tubular shape.

LOW PROFILE STENT AND GRAFT COMBINATION

Large diameter self-expanding endoprosthetic devices, such as stents and stent grafts for delivery to large diameter vessels, such as the aorta, are disclosed having very small compacted delivery dimensions. Devices with deployed dimensions of 26 to 40 mm or more are disclosed that are compacted to extremely small dimensions of 5 mm or less, enabling percutaneous delivery of said devices without the need for surgical intervention. Compaction efficiences are achieved by combining unique material combinations with new forms of restraining devices, compaction techniques, and delivery techniques. These inventive devices permit consistent percutaneous delivery of large vessel treatment devices. Additionally, small endoprosthetic devices are disclosed that can be compacted to extremely small dimensions for delivery through catheter tubes of less than 1 mm diameter.

A STENT GRAFT HAVING IMPROVED ATTACHMENT WITHIN A BODY VESSEL

In accordance with the present invention there is provided an improved stent graft for insertion into a body vessel of a patient. The stent graft includes a hollow substantially cylindrical stent comprising a plurality of interconnected struts. In addition, the stent graft includes a graft material attached to the stent, wherein the graft material is an open cell foam material having a multiplicity of cells having an average diameter ranging from about 100-500 micrometers, and a cell density on a surface thereof ranging from about 50-100 cells per inch.

ENDOLUMINAL PROSTHESIS

The present invention regards an endoluminal prosthesis (1) or stent comp rising a tubular body (10) adapted to be brought from a contracted condition to an expanded condition. The tubular body extends along a longitudinal axi s (X-X) and comprises a plurality of bands (11, 11') and at least one thread (13, 13') connected to at least one of the bands (11. a).

MINIMAL SURFACE AREA CONTACT DEVICE FOR HOLDING PLAQUE TO BLOOD VESSEL WALL

A tack device for holding plaque against blood vessel walls in treating atherosclerotic occlusive disease is formed as a thin, annular band of durable, flexible material having a plurality of focal elevating elements on its outer annular periphery for holding loose plaque under a spring or other expansion force against a blood vessel wall. The focal elevating elements are designed to exert a holding force on a plaque position while minimizing the amount of material surface area in contact with the plaque or blood vessel wall and reducing the potential of friction with the intraluminal surface. This approach offers clinicians the ability to perform a minimally invasive post-angioplasty treatment and produce a stent-like result without using a stent.

VASCULAR AND BODILY DUCT TREATMENT DEVICES AND METHODS

A device including a self-expandable member having a proximal end portion and a main body portion. The self-expandable member is movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient. The expandable member includes a plurality of cell structures with the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member and the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member.

A STENT GRAFT HAVING IMPROVED ATTACHMENT WITHIN A BODY VESSEL

In accordance with the present invention there is provided an improved stent graft for insertion into a body vessel of a patient. The stent graft includes a hollow substantially cylindrical stent comprising a plurality of interconnected struts. In addition, the stent graft includes a graft material attached to the stent, wherein the graft material is an open cell foam material having a multiplicity of cells having an average diameter ranging from about 100-500 micrometers, and a cell density on a surface thereof ranging from about 50-100 cells per inch.

THROMBECTOMY DEVICE

The invention relates to a thrombectomy device having a substantially cylindrical stent structure (1). The stent structure comprises a plurality of meshes (3, 4) and also two connectors (5, 5') that are disposed at different meshes (3) at the proximal end of the stent structure (1). The device also has a guide wire (2), which comprises a coupling element (11) to which the connectors (5, 5') are coupled, and a slit (7), which extends helically over the lateral face (8) of the stent structure (1), and a tensioning clip (9) that spans the slit (7) at the proximal end.

STENT HAVING A MULTIPLICITY OF CLOSED CIRCULAR STRUCTURES

The present invention provides for an expandable stent (1) for use in an artery or other vessel of a human body which forms a plurality of spaced apart generally circular rings (2). The stent structure (1) maintains patency of a vessel within which the stent (1) is inserted and is formed by a plurality of closed and generally circular rings (2) where the plane of each ring (2) is substantially parallel to the plane of an adjacent ring (2). The rings (2) have a common longitudinal axis generally perpendicular to the plane of each ring (2) with the longitudinal axis passing through the geometric center of each of the rings (2). A plurality of elongated wire structures forming longitudinals (4T, 4B, 4R, 4L) are fixedly secured to the rings (2) and extend in a direction generally parallel to the longitudinal axis of the rings (2). The stent (1) formed of the generally circular rings (2) optimizes hoop strength and minimize elastic recoil of a vessel into which the stent (1) is inserted.

BIFURCATED ENDOVASCULAR STENTS AND METHOD AND APPARATUS FOR THEIR PLACEMENT

A bifurcated endovascular stent is formed from a pair of individual tubular component stents that can be placed independently in sequence in the branched region of a body vessel to form the bifurcated stent in situ. The first placed component stent includes a side opening and may be placed to extend both proximally and distally of the bifurcated junction with the side opening facing the entry to the branch vessel. The first component stent then is expanded within the vessel. The second component stent then can be advanced through the first component stent, through the side opening and into the branch vessel where it can be expanded. The portions of the first and second component stents that surround the region of the vessel juncture are constructed to provide enhanced lateral support for the walls of the vessel in the region of the junction. A delivery catheter is provided and includes a guidewire duct adapted to facilitate entry of a guidewire into the branch vessel while the first component ...

IMPLANTABLE INTRALUMINAL PROSTHESIS

An implantable intraluminal prosthesis assembly is provided for use in repairing or replacing damaged or diseased portions of a blood vessel or other like vessel. The prosthesis includes an expandable stent/graft combination, with a pair of stents at either end of the graft, and further includes a plurality of struts extending between and interconnecting the stents, and radial spaced about the inner surface of the graft. As such, the implantable prosthesis is provided with internal support for the graft when in a compressed state during implantation and is further provided with radial support along the length of the graft after implantation.

ENDOPROSTHESIS AND DELIVERY DEVICE FOR IMPLANTING SUCH ENDOPROSTHESIS

Implantable venous frame

Stent for placement in living body, and stent delivery system

BUNGEE CORD OF BODY, IN PARTICULAR VASCULAR CONDUIT

Cet extenseur (1), de type couramment dénommé " stent ", comprend une succession de segments tubulaires (3a, 3b, 3c, 3d) reliés entre eux, ayant une structure expansible formée par une succession de méandres (5). Selon l'invention, l'extenseur (1) comprend : - un longeron souple (2) auquel chaque segment (3a, 3b, 3c, 3d) est relié par les extrémités de sa structure; - au moins quatre segments (3a, 3b, 3c, 3d), dont les coudes (5a) des méandres (5) des deux segments centraux (3b, 3c) sont axialement décalés, de telle sorte qu'il existe un espace (8) entre ces segments (3b, 3c); - au moins un pont (4) reliant chaque segment latéral (3a, 3d) de cette série de quatre segments (3a, 3b, 3c, 3d) audit segment " central " adjacent (3b, 3c), chaque pont (4) étant conformé de manière à faire pivoter les segments centraux (3b, 3c) pour réduire l'espace (8).

Prosthesis for treatment of aneurysms esp. in abdominal aorta

Il s'agit d'une prothèse (1) implantable dans un corps vivant pour y former un substitut de conduit dans une zone de ramification de ce conduit.Cette prothèse comprend une gaine (4) souple pour canaliser le fluide circulant dans le conduit ; des stabilisateurs longitudinaux (26) liés fonctionnellement à la gaine le long de laquelle ils s'étendent ; des moyens-ressorts (36, 38, 40) expansibles pour faire passer les stabilisateurs d'un état resserré à un état expansé radialement, et des moyens de fixation (30) au(x) conduit(s). Cette gaine comporte un tronçon tubulaire principal (16) qui se divise, en une zone d'embranchement (18), en deux branches tubulaires (20, 22) propres à être écartées l'une de l'autre dans une position implantée de la prothèse.Application au traitement des anévrismes de l'aorte abdominale, en particulier.

ENDO-URINARY PROSTHESIS

STENT INCLUDING A TOGGLE LOCK

A stent includes cylindrical rings disposed adjacent to each other. Each cylindrical ring includes longitudinal segments that may be disposed generally parallel to a longitudinal axis of the stent. The longitudinal segments are coupled to each other by toggle lock struts. The toggle lock struts are disposed substantially at the center of the circumferentially adjacent longitudinal segments. When the stent is in a compressed state for delivery, the toggle lock struts are bent such that the longitudinal segments are disposed close to each other. Upon expansion of the stent, the toggle lock struts straighten such that the longitudinal segments are disposed father apart form each other.

VASCULAR AND BODILY DUCT TREATMENT DEVICES AND METHODS

A device including a self-expandable member having a proximal end portion and a main body portion. The self-expandable member is movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient. The expandable member includes a plurality of cell structures with the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member and the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member.

VARIABLE WALL ENDOVASCULAR STENT

An endovascular stent is disclosed with a variable thickness wall structure that provides increased longitudinal flexibility while retaining other desirable stent qualities, including radial strength equal to or greater than existing endovascular stents. In addition the variable thickness wall structure allows for increased surface area for the exterior stent walls, thus increasing the potential space available for therapeutic coatings.

FRAME BASED UNIDIRECTIONAL FLOW PROSTHETIC IMPLANT

The present invention relates to a medical device, and in particular, to a stent-based valve. The valve includes a radially expandable structural frame comprising a proximal and distal anchors formed from a lattice of interconnected elements, and having a substantially cylindrical configuration with first and second open ends and a longitudinal axis extending there between. One or more cantilevered valve struts are attached directly or indirectly to the proximal anchor. The stent based valve also comprises one or more connecting members attached between the proximal and distal anchors. A biocompatible valve assembly is coaxially disposed and attached to the proximal anchor and extends in the longitudinal direction along the one or more connecting members.

Endoluminal Prostheses for Treating Vulnerable Plaque

The invention provides expandable tubular endoluminal prostheses for the treatment of vulnerable plaque lesions and methods for treating vulnerable plaques using the prostheses. The endoprostheses may include at least two opposing ring-like end sections and a central section including a number of struts having parallel longitudinal axes connecting the ends sections. In use, the device is expanded in a blood vessel so that the central section at least partially contacts a vulnerable plaque lesion and/or the blood vessel wall in close proximity to the vulnerable plaque lesion.

Device for collapsing an appliance collapsible for insertion into human organs

An artificial body vessel to be inserted into a human organ is collapsed and introduced into a catheter, which is brought to a required position in the human organ, where the artificial body vessel is released therefrom. A pair of foldable, elastic wire rings 10 are provided at the opposite ends of the artificial body vessel. A plurality of connecting wire rings bridge the end wire rings 10. A plurality of intermediate wire rings 12 bind and keep the connecting wire rings 11 transformed in a generally elliptical shape. The end wire rings 10, the intermediate wire rings 12 and the connecting wire rings 11 are folded by means of a string passed through loops to collapse the artificial body vessel 7. The collapsed artificial body vessel 7 is inserted into a catheter. At the objective position of the blood vessel the artificial body vessel 7 is released, so that the resiliency of the end wire rings 10, the intermediate wire rings 12 and the connecting wire rings 11 restores the artificial body ...

Delivery catheter and graft for aneurysm repair

This invention provides a graft delivery system and methods for its use comprising a prosthetic graft secured to an expandable anchoring member, such as a stent, by a butt-joint attachment means to minimize the system's profile. The delivery system employs a catheter with a relatively small diameter shaft for flexibility and a relatively large diameter delivery base for supporting expansion of the anchoring member. The butt-joint attachment means comprises any means suitable to secure the graft to the anchoring member when deployed within the patient's vasculature and allows the anchoring member and graft to expand during deployment. In a preferred embodiment, the delivery system is configured so that the expansion of the anchoring member pulls the distal end of the graft over the proximal end of the anchoring member and the final expansion of the anchoring member seals the distal end of the graft between the proximal end of the anchoring member and the vessel. One preferred method of use ...

Crush Recoverable Polymer Scaffolds

A medical device includes a polymer scaffold crimped to a catheter having an expansion balloon. The scaffold, after being deployed by the balloon, provides a crush recovery of about 90% after the diameter of the scaffold has been pinched or crushed by 50%. The scaffold has a pattern including an asymmetric closed cell connecting links connecting the closed cells.

Radially expansible vessel scaffold having beams and expansion joints

The present invention provides improved prostheses and methods for their endolumenal placement within body lumens, particularly blood vessels. In one embodiment, the prosthesis of the present invention having a plurality of radially expansible rings having, a plurality of beams connecting axially remote points on adjacent rings, and a plurality of expansion joints connecting axially proximate points on adjacent rings. The beams maintain the remote points at a fixed distance when the prosthesis is radially expanded and the expansion joints allow for relative movement of the proximate points during delivery of the prosthesis. The combination of the beams and expansion joints minimizes the risk of injury to the body lumen during delivery of the prosthesis to a target site and provides improved tracking capabilities.

Articulated expandable intraluminal stent

The present invention includes: an expandable, tubular shaped prosthesis having first and second ends and a wall surface disposed between the first and second ends, the wall surface being formed by a plurality of intersecting elongate members; and a catheter, having an expandable, inflatable portion associated therewith and including means for mounting and retaining the expandable tubular shaped prosthesis on the expandable, inflatable portion, whereby upon inflation of the expandable, inflatable portion of the catheter, the prosthesis is formed radially outwardly into contact with the body passageway. The articulation in the form of a rounded wire frame loop connects similar stent bodies. Also, rounded open connectors and shortened cells in the stent allow for greater flexibility.

Airway stent

A stent comprising: two or more stent sections; one or more rods extending between the two or more stent sections; wherein one the one or more rods is fixedly connected to a fixed anchor that is connected to a first of the two or more stent sections, and a second of the two or more of stent sections are movable connected to one of the one or more rods by a movable anchor; and wherein the stent supports an opening of an anatomical passageway.

Stent graft delivery device

A stent graft delivery device includes a handle body, a distal handle, a proximal handle, a guidewire lumen, a nose cone, a rigid outer catheter, a graft push lumen, a sheath lumen, an inner sheath and a locking ring. The locking ring is switchable between an advancement position and a delivery position. The stent graft delivery device is employed in methods for endovascular delivery of stent grafts.

Pulmonary artery implant apparatus and methods of use thereof

The present invention relates to an implantable apparatus and methods of use thereof for treating congestive heart failure. An apparatus of this invention may be anchored by implantation of a section of the apparatus within in a branch pulmonary artery, for example the left pulmonary artery, which then positions and anchors another section, for example a device frame section of the apparatus within the main pulmonary artery. A medical device may be attached to the anchored device frame.

Catheter with integrated embolic protection device

A prosthetic heart valve delivery catheter includes an embolic filter to provide integrated embolic protection to inhibit the release of emboli into the aorta, the aortic arch or branch vessels, and other vasculature during transvascular heart valve replacement procedures. The embolic filter will usually be fixedly or movably attached to a shaft of the delivery catheter proximal of the prosthetic heart valve.

STENT FOR PLACEMENT IN LIVING BODY, AND STENT DELIVERY SYSTEM

A stent 1 for placement in living body is stent formed substantially in a tubular form. The stent 1 is provided with a plurality of wave-shaped struts 3 and 4 extending in an axial direction from one end side to the other end side of the stent 1 and arranged in a circumferential direction thereof, and also with connection struts 5 interconnecting the respective adjacent wave-shaped struts 3 and 4. The adjacent wave-shaped struts 3 and 4 are provided with a plurality of close sections and open sections. The connection struts 5 interconnect between the close sections of adjacent wave-shaped struts 3 and 4 and each has at the center thereof a bent portion 51 extending in the axial direction of the stent.

Bilateral extension prosthesis

A system for bypassing an aneurysm (100) comprising at least one bypass prosthesis (11a,11b) and at least one extension prosthesis (160). The bypass prosthesis comprises an extension receptacle in a distal portion (16a) thereof, and the extension prosthesis has a proximal portion (161) adapted to engage the extension receptacle.

Articulated expandable intraluminal stent

The present invention includes: an expandable, tubular shaped prosthesis having first and second ends and a wall surface disposed between the first and second ends, the wall surface being formed by a plurality of intersecting elongate members; and a catheter, having an expandable, inflatable portion associated therewith and including means for mounting and retaining the expandable tubular shaped prosthesis on the expandable, inflatable portion, whereby upon inflation of the expandable, inflatable portion of the catheter, the prosthesis is formed radially outwardly into contact with the body passageway. The articulation in the form of a rounded wire frame loop connects similar stent bodies. Also, rounded open connectors and shortened cells in the stent allow for greater flexibility.

TUBULAR EXPANDABLE MEMBER FOR AN INTRALUMINAL ENDOPROSTHESIS, INTRALUMINAL ENDOPROSTHESIS AND METHOD OF PRODUCTION

TRANSPLANTING SURGICAL TUBE

УСТРОЙСТВО ДЛЯ ИЗВЛЕЧЕНИЯ ЭМБОЛИЧЕСКОЙ ОККЛЮЗИИ

Изобретение относится к медицинской технике, а именно к устройствам лечения сосудистой системы и других каналов в организме человека, в частности к устройствам для извлечения эмболической окклюзии. Устройство для извлечения эмболической окклюзии содержит продолговатый саморасширяющийся элемент, характеризующийся радиально расширенной конфигурацией и радиально нерасширенной конфигурацией. Расширяющийся элемент содержит несколько в целом продольных волнообразных элементов. Смежные волнообразные элементы соединены друг с другом таким образом, чтобы образовывать несколько диагонально расположенных структур в виде ячеек. Расширяющийся элемент содержит проксимальную конечную часть и цилиндрическую часть в виде основного корпуса. Структуры в виде ячеек в цилиндрической части в виде основного корпуса проходят по окружности вокруг продольной оси расширяющегося элемента, а структуры в виде ячеек в проксимальной конечной части проходят по части окружности вокруг продольной оси расширяющегося элемента ...

УСТРОЙСТВА И СПОСОБЫ ЛЕЧЕНИЯ СОСУДОВ И ДРУГИХ КАНАЛОВ В ОРГАНИЗМЕ

... 1. Устройство для извлечения тромбов, содержащее продолговатый саморасширяющийся элемент, выполненный с возможностью расширения из первого положения для доставки во второе положение, причем в первом положении для доставки саморасширяющийся элемент находится в нерасширенном положении и характеризуется первым номинальным диаметром, а во втором положении саморасширяющийся элемент находится в радиально расширенном положении и характеризуется вторым номинальным диаметром, большим первого номинального диаметра, причем саморасширяющийся элемент вырезан из трубки для того, чтобы содержать множество структур в виде ячеек, и саморасширяющийся элемент содержит проксимальную конечную часть и продолговатую цилиндрическую часть в виде основного корпуса, при этом структуры в виде ячеек в продолговатой цилиндрической части в виде основного корпуса проходят по окружности вокруг продольной оси саморасширяющегося элемента, а структуры в виде ячеек в проксимальной конечной части проходят по части окружности ...

ИМПЛАНТИРУЕМОЕ УСТРОЙСТВО С ПЕРЕМЫЧКОЙ

FLEXIBLE UND EXPANDIERBARE, INTERNE, VASKULÄRE PROTHESE FÜR CHIRURGISCHE ANWENDUNG

ABNEHMBARE UND RÜCKHOLBARE STENTANORDNUNG

Implantierbare Prothese für ein menschliches oder tierisches Gefäss, wie z.B. Stent oder Aneurismaprothese

Stent-Graft mit gefaltetem Gewebe

Branch stent

STENT WITH A MULTIPLICITY OF CLOSED OF CIRCULAR STRUCTURES

EXPAND-CASH STENT

PERCUTANEOUS ONE STENTANORDNUNG

ITSELF BYPASS ENDOVASKULÄRE STENTS

PROCEDURE FOR SQUEEZING AN ENDOPROSTHESIS TOGETHER

REMOVABLE ONE AND BACKGET-CASH STENTANORDNUNG

MIX STENT

ENDOLUMINALE PROSTHESIS WITH BIOABSORBABLE SECTIONS

SELFSPREAD OUT-CASH ENDOPROSTHESIS

Expandable and retrievable stent

An expandable and retrievable stent (100) is disclosed herein. The stent includes an inner strut (105), a first traveling anchor (120) movably attached to the inner strut and a second anchor (125) secured to the inner strut. The stent further includes a frame (108) connected to the first traveling anchor and the second anchor wherein the frame has at least a radially compressed configuration and a radially expanded configuration. The stent may also include a generally cylindrical sleeve (144).

STENT-GRAFT WITH RAILS

STENT TO BE IMPLANTED WITHIN OR AROUND A HOLLOW ORGAN

INFLATABLE STENT

Articulated expandable intraluminal stent

A stent device

Two valve caval stent for functional replacement of incompetent tricuspid valve

A two valve caval stent for functional replacement of an incompetent tricuspid valve. The device is designed for minimally invasive percutaneous transcatheter placement and includes two stents connected by a bridge sized to span the right atrium, and two valves anchored by the stents in the superior and inferior vena cavas. Each of the valves optionally has a conical shape divided by supporting struts into three cusps that simulate the action of a native tricuspid valve.

Biodegradable endoprostheses and methods for their fabrication

Biodegradable endoprostheses are formed from amorphous polymers having desirable biodegradation characteristics. The strength of such amorphous polymers is enhanced by annealing to increase crystallinity without substantially increasing the biodegradation time.

Absorbable Blood Vessel Stent

An absorbable blood vessel stent ( 100 ) has a near end and a far end. A tubular patterned structure is formed between the near end and the far end. The patterned structure comprises a plurality of support bars and connection bars ( 2, 3 ). The support bar or the connection bar ( 2, 3 ) comprises a straight line section, a U-shaped section, or an S-shaped section, and at least one through groove or through hole ( 5, 6 ) is provided on at least one support bar. Because of the special structure of the blood vessel stent ( 100 ), the performance of an iron blood vessel stent can be improved, and blood vessel stents made of other absorbable materials can be decomposed more rapidly.

REPLACEMENT MITRAL VALVES

A prosthetic mitral valve includes an anchor assembly, an annular strut frame, and a plurality of replacement leaflets secured to the annular strut frame. The anchor assembly includes a ventricular anchor, an atrial anchor, and a central portion therebetween. The annular strut frame is disposed radially within the anchor assembly. An atrial end of the annular strut frame is attached to the anchor assembly such that a ventricular end of the annular strut frame is spaced away from the anchor assembly. 1. A prosthetic mitral valve comprising:an anchor assembly comprising a proximal anchor, a distal anchor, and a central portion therebetween;an annular strut frame disposed radially within the anchor assembly, wherein the annular strut frame comprises a cylindrical ventricular portion and flared atrial portion, the flared atrial portion flaring radially outwards relative to the cylindrical ventricular portion; anda plurality of replacement leaflets secured to the strut frame.2. The prosthetic mitral valve of claim 1 , wherein the atrial and ventricular anchors are flared radially outwards relative to the central portion claim 1 , and wherein an angle of the flared atrial portion substantially conforms to an angle of the flared atrial anchor.3. The prosthetic mitral valve of claim 1 , wherein an angle of the flared atrial portion is between 60 and 65 degrees relative to a central longitudinal axis of the cylindrical ventricular portion.4. The prosthetic mitral valve of claim 1 , wherein an atrial end of the strut frame is attached to the anchor assembly.5. The prosthetic mitral valve of claim 4 , wherein the cylindrical ventricular portion is spaced away from the anchor assembly.6. The prosthetic mitral valve of claim 4 , wherein the atrial end of the strut frame is attached to the anchor assembly with a plurality of rivets.7. The prosthetic mitral valve of claim 1 , wherein the prosthetic mitral valve is configured to self-expand from a constrained configuration to an ...

STENT AND METHOD FOR MANUFACTURING THEREOF

According to one aspect of the present disclosure, a method and technique for manufacturing a stent are disclosed. The stent is a non-metallic stent having a furled small-diameter state and an expanded large-diameter state where the stent, in the furled small-diameter state, includes a plurality of central lobes arranged at spaced-apart intervals and extending longitudinally defining a stent axis, the plurality of central lobes defining a cylindrical plane of the stent. The stent also includes at least one peripheral lobe formed on at least one of the plurality of central lobes, the peripheral lobe oriented along the cylindrical plane. 1. A non-metallic bifurcated stent comprising: an element forming a first plurality of spaced-apart central lobes as the element extends from a proximal end of the stent component to a distal end of the stent component, wherein each of the first plurality of central lobes are formed by a coiled rotation of the element,', 'a second plurality of spaced-apart central lobes formed by the element as the element returns from the distal end to the proximal end of the stent component, wherein each of the second plurality of central lobes are formed by a coiled rotation of the element, wherein the first plurality of central lobes are formed in a non-parallel winding configuration relative to the second plurality of central lobes, and', 'at least one peripheral lobe formed on at least one of the first plurality of central lobes and on at least one of the second plurality of central lobes;, 'a primary stent component and a secondary stent component, wherein each of the primary stent component and the secondary stent component has a furled small-diameter state and an expanded large diameter state, and wherein each of the primary stent component and the secondary stent component comprises, in the furled small-diameter statewherein said primary stent component has a first portion, a second portion and a medial portion located between the first ...

Coated Stent

A coated stent (), comprises a coated unit (), and an exposed unit () which is a ring-shaped structure and which is provided on the periphery () of an end portion () of the coated unit (); the exposed unit () comprises an inward-tilting wave body (), the inward-tilting wave body () comprising at least a first wave crest () and a first wave rod () connected to the first wave crest (); the position of the first wave crest () is farther away from the coated unit () than other positions on the inward-tilting wave body (); the first wave rod () is planar, and from the first wave crest () to an end of the exposed unit () near the coated unit (), the radial distance from the inward-tilting wave body () to the central axis () of the coated unit () gradually increases. When the coated stent () is implanted into an arterial vessel (), the inward-tilting wave body () forms a certain avoidance space due to the tilt to adapt to the curvature of a large curved side () of the arterial vessel (), and prevents the inward-tilting wave body () from directly piercing a branch vessel (). 1. A covered stent , wherein the covered stent comprises:a covered unit; anda bare unit, which is a ring-shaped structure and arranged on a periphery of an end portion of the covered unit, wherein the bare unit comprises an inward-tilting wave body comprising at least a first wave crest and a first wave rod connected to the first wave crest, the first wave crest is further from the covered unit than other positions of the inward-tilting wave body, the first wave rod is planar, and from the first wave crest to an end of the bare unit close to the covered unit, a radial distance from the inward-tilting wave body to a central axis of the covered unit gradually increases.2. The covered stent according to claim 1 , wherein the inward-tilting wave body further comprises a first wave trough claim 1 , a vertex of the first wave trough is located on the periphery of the end portion of the covered unit close to ...

METHOD AND SYSTEM FOR DELIVERING A SELF-EXPANDING STENT TO THE VENOUS SINUSES

A stent delivery system includes a shaft extending from a proximal end of the system into a delivery tip at a distal end. The shaft includes a coil and a stent bed. A stent is loaded onto the stent bed and has a first portion at its distal end having a greater flexibility than a second portion at its proximal end. Sheathing is movable over the stent bed between pre-deployed and deployed positions. The sheathing includes a flexible section at the sheathing distal end, a semi-flexible section adjacent the flexible section, and a stiff section adjacent the semi-flexible section. The delivery tip is more flexible than the combination of the stent bed, the first portion of the stent, and the flexible section of the sheathing, which is more flexible than the combination of the stent bed, the second portion the stent, and the flexible section of the sheathing. 120-. (canceled)21. A method comprising: a delivery handle at a proximal end of the stent delivery system;', 'a catheter hub;', 'a delivery tip at a distal end of the stent delivery system, wherein the delivery tip comprises a tip distal end and a tip proximal end, and wherein the delivery tip has a first flexibility;', 'a shaft extending from the delivery handle through the catheter hub and into the delivery tip, wherein the shaft comprises a coil and a stent bed, the coil having a coil distal end and a coil proximal end, the stent bed between the coil distal end and the tip proximal end;', 'a stent loaded on to the stent bed, wherein the stent comprises a stent distal end, a stent proximal end, and a body between the stent distal end and the stent proximal end, the body defining a lumen extending through the stent from the stent distal end to the stent proximal end in a deployed state, and wherein a first portion of the body at the stent distal end has a greater flexibility than a second portion of the body at the stent proximal end; and', 'sheathing coupled to the catheter hub and movable over the stent bed ...

STENT

A stent which improves safety by allowing a living body to be less affected even if a drug is detached. A stent has a strut that is formed in a linear shape, and that defines a cylindrical shape having an opening, a side surface coating member which coats at least a part of at least one of the side surfaces of the strut, the side surface coating member including a drug and a drug loading member which is a polymeric material for loading the drug, and an outer surface coating member which coats at least a part of the outer surface of the strut, the outer surface coating member including the drug without including the drug loading member.

Tubular Structures with Variable Support

A tubular structure having variable support includes a tubular member and a structural support member with a flexible tubular member over the structural support member, such that the flexible tubular member can engage and disengage or squeeze and release the structural support member. The structural support member can be a tubular mesh, stent, framework, skeleton, braid or other flexible framework. A fluid passage can be used to inflate and deflate the flexible tubular member. Methods of assembly and methods of use are also described.

Replacement Mitral Valves

A prosthetic mitral valve includes an anchor assembly, a strut frame, and a plurality of replacement leaflets secured to the annular strut frame. The anchor assembly includes a ventricular anchor, an atrial anchor, and a central portion therebetween. The ventricular anchor and the atrial anchor are configured to flare radially outwards relative to the central portion. The annular strut frame is disposed radially within the anchor assembly and is attached to the anchor assembly. The central portion is configured to align with a native valve orifice and the ventricular anchor and the atrial anchor are configured to compress native cardiac tissue therebetween. 1an anchor assembly comprising a ventricular anchor, an atrial anchor, and a central portion therebetween, wherein the ventricular anchor and the atrial anchor are configured to flare radially outwards relative to the central portion;an annular strut frame disposed radially within the anchor assembly, the annular strut frame attached to the anchor assembly at a plurality of attachment locations that are positioned between the central portion and an atrial-most edge of the anchor assembly; anda plurality of replacement leaflets secured to the annular strut frame;wherein the central portion is configured to align with a native valve orifice and the ventricular anchor and the atrial anchor are configured to compress native cardiac tissue therebetween.. A prosthetic mitral valve comprising: This application is a continuation of U.S. patent application Ser. No. 15/908,701, filed Feb. 28, 2018, which is a continuation of International Patent Application No. PCT/US2018/14902, filed Jan. 23, 2018, titled “REPLACEMENT MITRAL VALVES”, which claims priority to U.S. Provisional Application No. 62/513,877, filed Jun. 1, 2017 and to U.S. Provisional Patent Application No. 62/449,498, filed Jan. 23, 2017, and titled “REPLACEMENT MITRAL VALVES,” the entireties of which are hereby incorporated by reference herein.U.S. patent ...

STENT AND METHOD FOR MANUFACTURING THEREOF

According to one aspect of the present disclosure, a method and technique for manufacturing a stent are disclosed. The stent is a non-metallic stent having a furled small-diameter state and an expanded large-diameter state where the stent, in the furled small-diameter state, includes a plurality of central lobes arranged at spaced-apart intervals and extending longitudinally defining a stent axis, the plurality of central lobes defining a cylindrical plane of the stent. The stent also includes at least one peripheral lobe formed on at least one of the plurality of central lobes, the peripheral lobe oriented along the cylindrical plane. 1. A non-metallic stent having a furled small-diameter state and an expanded large diameter state , the stent comprising , in the furled small-diameter state:a first plurality of central lobes arranged at spaced-apart intervals and extending longitudinally defining a stent axis;a second plurality of central lobes arranged at spaced-apart intervals and extending longitudinally along the stent axis;at least one peripheral lobe formed on at least one of the first plurality of central lobes and on at least one of the second plurality of central lobes, each lobe of the first plurality of central lobes, the second plurality of central lobes, and the at least one peripheral lobe formed by a coiled rotation of an element, wherein the element comprises a Poly-L-Lactic Acid polymer fiber loaded with a material; andwherein the first plurality of central lobes are formed longitudinally in a first direction along said stent axis in a rotational winding direction and the second plurality of central lobes are formed longitudinally in a second direction along said stent axis in the rotational winding direction to form respective first and second helices having an opposing winding pattern along the stent axis.2. The stent of claim 1 , wherein said material is a radio-opaque material.3. The stent of claim 1 , wherein the at least one peripheral lobe ...

AIRWAY STENT

A stent comprising: two or more stent sections; one or more rods extending between the two or more stent sections; wherein one the one or more rods is fixedly connected to a fixed anchor that is connected to a first of the two or more stent sections, and a second of the two or more of stent sections are movable connected to one of the one or more rods by a movable anchor; and wherein the stent supports an opening of an anatomical passageway. 1. A stent comprising:two or more stent sections;a plurality of struts connected to each of the two or more stent sections,one or more rods extending between the two or more stent sections;wherein a first of the two or more stent sections are fixedly connected to one of the one or more rods by a fixed anchor, and a second of the two or more of stent sections are movably connected to one of the one or more rods by a movable anchor;wherein the plurality of struts extend outward away from the one or more rods to support an opening of an anatomical passageway; andwherein the movable anchor allows the second of the two or more stent sections to longitudinally slide along a longitudinal axis of the stent with respect to the first of the two or more stent struts as the plurality of struts expand outward from a retracted state to a deployed state.2. The stent of claim 1 , wherein the first of the two or more stent sections is connected to a first rod of the one or more rods and the second of the two or more stent struts is connected to a second rod of the one or more rods and a hinge point is located between the first rod and the second rod.3. (canceled)4. The stent of claim 1 , wherein the stent is compacted into a cartridge claim 1 , a catheter claim 1 , or both prior to insertion.5. The stent of claim 1 , wherein the stent includes a removal rod.6. The stent of claim 1 , wherein the one or more rods include a stop for each of the two or more stent sections so that each of the two or more stent sections are retained on the one or more ...

Thin-film micromesh and related methods

Thin-film mesh for medical devices and related methods are provided. The thin-film mesh may include slits to be expanded into pores, and the expanded thin-film mesh may be used as a cover for a stent device. The thin-film mesh has a tube-shape and the slits may be angled with respect to a longitudinal axis of the tube-shape thin-film mesh. The angled slits allow for the thin-film mesh to expand in multiple dimensions, including along the longitudinal axis and along the circumferential direction of the tube-shape thin-film mesh. The slits may be provided in diagonal rows arranged in longitudinal columns. Longitudinal columns of different types of slits may be arranged along the circumferential direction on the tube-shape thin-film mesh to form a zig-zag pattern of slits. The thin-film mesh may be formed from thin-film Nitinol (TFN) and may be fabricated via sputter deposition on a micropatterned wafer.

Anti-migration stent with quill filaments

A stent that includes a plurality of quill filaments. Each quill filament includes filament material, a surface, and a plurality of quills. Each quill has a tip, a body, and a base where the body extends from the base to the tip. The quill filaments can be interwoven to form the stent or the quill filaments can be engaged to the framework of a stent.

ENDOLUMINAL DRUG DELIVERY DEVICE

A drug delivery device () includes expandable element () formed of a braided structure having a body portion () and first and second end cones (). The end cones are attached at their necks () to a catheter assembly (). The expandable element () can expand to a vessel contacting configuration, in which the body portion () contacts the vessel wall. Bioactive agent () covers at least the outer surface of the body portion () such that bioactive material can be administered to a vessel wall. The end cones () have an open structure allowing unrestricted passage of blood through the device () in the deployed configuration, such that blood flow can be maintained during the administration of bioactive agent () from the device (). The expandable element () can be radially contracted by extending it in the longitudinal direction, both for deployment endoluminally to the treatment site and also for retrieval following the administration of the bioactive material. 1. A vascular delivery device for delivering a bioactive agent to a vessel wall , including:an expandable frame element having a body portion formed of at least one braided or knitted wire and first and second end portions formed of at least one braided or knitted wire, the body portion being radially expandable from a contracted to a deployed configuration, and having an open interior and an outer surface;the first and second end portions having an open structure allowing passage to the open interior of the body portion;a carrier element on which the expandable frame is disposed, wherein the first and second end portions are connected to the carrier element;and a bioactive material disposed at least on the outer surface of the body portion;wherein the body portion has, in the expanded condition, a knit or braid weave which is tighter than the knit or braid weave of the first and second end portions.2. A vascular delivery device according to claim 1 , wherein the body portion is generally hollow.3. A vascular delivery ...

Intravascular stent

An expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. In one aspect, the stent includes a butterfly pattern to which connecting links are attached. In another aspect, the stent embodies a non-directional structure.

STENT HAVING FLEXIBLY CONNECTED ADJACENT STENT ELEMENTS

An open stent (a stent having open space through its thickness at locations between the ends of the stent), incorporating flexible, preferably polymeric, connecting elements into the stent wherein these elements connect adjacent, spaced-apart stent elements. Preferably the spaced-apart adjacent stent elements are the result of forming the stent from a helically wound serpentine wire having space provided between adjacent windings. Other stent forms such as multiple, individual spaced-apart ring-shaped or interconnected stent elements may also be used. The connecting elements are preferably longitudinally oriented. 1. A cover for use with an implantable stent , said cover comprising an integral , non-woven sheet having a length and width and an area defined as a the length multiplied by the width , said cover having a multiplicity of perforations therethrough , wherein said perforations collectively cover an area that is at least 50% of the sheet area , wherein said perforations have a minimum aperture size of about 0.10 mm.2. A cover according to wherein said perforations have a generally hexagonal shape.3. A diametrically expandable endoprosthesis comprising a substantially open tubular stent and at least one flexible non-metallic strip claim 1 , said strip oriented substantially longitudinally and connected to the stent to limit foreshortening and elongation of the stent.4. A diametrically expandable stent comprising at least two circumferentially oriented spaced-apart stent elements and at least one substantially longitudinally oriented flexible connecting strip connecting adjacent spaced apart stent elements claim 1 , said stent having a length between ends of the stent and a deployed circumference claim 1 , wherein said stent has a tubular area comprising the stent length multiplied by the deployed circumference and wherein at least 50% of the tubular area is open.5. A diametrically expandable stent according to wherein at least 60% of the tubular area is open. ...

MEDICAL TUBULAR BODY

An object of the present invention is to provide a medical tubular body that is excellent in visibility under X-ray fluoroscopic control, insertion property into a catheter and sliding property in a catheter, that suppresses contact of a marker with a tubular body or an adjacent marker in a diameter reduction state, and that is able to further reduce its diameter. The present invention provides a medical tubular body comprising a tubular body whose diameter is expandable and a marker provided inside the tubular body. 1. A medical tubular body comprising a tubular body whose diameter is expandable and a marker provided inside the tubular body.2. The medical tubular body according to claim 1 , wherein the marker is fixed to an inner surface of the tubular body.3. The medical tubular body according to claim 1 , wherein the marker is provided at a non-deformation part which constitutes a part of the tubular body.4. The medical tubular body according to claim 1 , wherein the marker is provided at a plane part of the inner surface of the tubular body.5. The medical tubular body according to claim 1 , wherein the marker is welded to the inner surface of the tubular body.6. The medical tubular body according to claim 1 , wherein the marker has a size so as to be placed in an inner space of the tubular body in a state where the tubular body is reduced in diameter.7. The medical tubular body according to claim 1 , comprising at least two of the markers claim 1 ,wherein the markers have a size so as not to contact with each other in the state where the tubular body is reduced in diameter.8. The medical tubular body according to claim 7 , wherein the two of the markers are provided at different positions in an axial direction of the tubular body.9. The medical tubular body according to claim 8 , further comprising a plurality of support rods whose lengths are different from each other claim 8 ,wherein the marker is provided at an end part of each of the support rod.10. The ...

Devices and methods for control of blood pressure

Apparatus and methods are described including an implantable device shaped to define (a) at least two artery-contact regions, the artery-contact regions comprising struts that are configured to stretch an arterial wall by applying pressure to the arterial wall, and (b) at least two crimping regions that comprise locking mechanisms configured to prevent the crimping regions from becoming crimped due to pressure from the wall of the artery on the artery-contact regions. The crimping regions are configured to be crimped during insertion of the device, via a catheter, by the locking mechanisms being unlocked during insertion of the device. Other embodiments are also described.

BALLOON EXPANDED POLYMER STENT

A medical device includes a polymer stent (or scaffold) crimped to a catheter balloon. The stent, after being expanded from a crimped state by the balloon, provides a crush recovery of about 90% of its expanded diameter after being pinched or crushed by an amount equal to about 50% of the expanded diameter. The stent has a pattern including a W-shaped or W-V shaped closed cell and links connecting the closed cells. 122-. (canceled)23. A medical device , comprising:a stent made from a polymer composition comprising poly (L-lactide),the stent has a pre-crimp diameter and a wall thickness such that a ratio of the pre-crimp diameter to the wall thickness is between 30 and 60,the stent is configured for being crimped to a balloon by plastic deformation of the stent, andthe stent has a pattern of interconnected elements, the interconnected elements including a plurality of undulating rings connected by links, wherein each ring includes struts that extend between crowns and the struts are configured to fold at the crowns when the stent is crimped to the balloon.24. The medical device of claim 23 , wherein the pre-crimp diameter is between 6 mm and 12 mm.25. The medical device of claim 23 , wherein the wall thickness is between 0.2 mm and 0.4 mm.26. The medical device of claim 23 , wherein the pre-crimp diameter is between 7 mm and 10 mm and the wall thickness is 0.2 mm.27. The medical device of claim 23 , wherein the pre-crimp diameter is between 9 mm and 10 mm and the wall thickness is 0.3 mm.28. The medical device of claim 23 , wherein a strut and a link each have a width and a thickness claim 23 , and wherein an aspect ratio (AR) of the width to wall thickness of the strut or the link is between 0.8 and 1.4.29. The medical device of claim 23 , wherein a link has a width and a thickness claim 23 , and wherein an aspect ratio (AR) of the width to wall thickness is between 0.4 and 0.9.30. The medical device of claim 23 , wherein each of the rings forms U crowns claim 23 , ...

STENT GRAFT HAVING MOVABLE FENESTRATED TUBULAR BRIDGE

A stent graft comprising an elongate main tubular body of a biocompatible graft material is disclosed. The main tubular body comprises a main lumen, a distal end and a proximal end; and an elongate tubular bridge of a biocompatible graft material. The elongate tubular bridge extends around a portion of the main tubular body so as to form a bridging lumen bridging between two circumferentially spaced-apart openings within the main tubular body. The tubular bridge has at least two fenestrations. The tubular bridge comprises concertinaed graft material. 1. A stent graft comprising:an elongate main tubular body of a biocompatible graft material, the main tubular body comprising a main lumen, a distal end and a proximal end; andan elongate tubular bridge of a biocompatible graft material, the elongate tubular bridge extending around a portion of the main tubular body and forming a bridging lumen bridging between two circumferentially spaced-apart openings within the main tubular body, the tubular bridge comprising at least two fenestrations.2. The stent graft as claimed in wherein the tubular bridge comprises concertinaed graft material.3. The stent graft as claimed in wherein the concertinaed graft material comprises a plurality of circumferential crimps.4. The stent graft as claimed in wherein a first sub-set of the circumferential crimps project outwards radially.5. The stent graft as claimed in wherein a second sub-set of the circumferential crimps project inwards radially.6. The stent graft as claimed in wherein the tubular bridge comprises at least three fenestrations.7. The stent graft as claimed in wherein the tubular bridge comprises first and second end portions joined by an intermediate portion claim 1 , the first and second end portions located within the main tubular body.8. The stent graft as claimed in wherein the first end portion terminates in an opening claim 7 , the opening comprising a reinforcing end ring.9. The stent graft as claimed in wherein the ...

Bioresorbable biopolymer stent

A bioresorbable biopolymer stents can be deployed within a blood vessel and resorbed by the body over a predetermined time period after the blood vessel has been remodeled. A ratcheting biopolymer stent can include a ratcheting mechanism that allows the biopolymer stent to be deployed on a small diameter configuration and then expanded to a predefined larger diameter configuration wherein after expansion, the ratcheting mechanism locks the biopolymer stent in the expanded configuration. A folding biopolymer stent can be deployed in a folded, small diameter configuration and then expanded to an unfolded configuration having a larger diameter. The bioresorbable biopolymer can include silk fibroin and blend that include silk fibroin materials.

Stent with elastomeric elements

Disclosed is a self-expanding medical implant for placement within a lumen of a patient. The implant comprises a woven or non-woven structure having a substantially tubular configuration, and is designed to be low-profile such that it is deliverable with a small diameter catheter. The implant has a high recoverability and desirable mechanical properties.

STENT

A stent is disclosed, which is capable of preventing connection sections from overlapping with each other in a radial direction when a force is applied inadvertently thereto by adjusting distribution of the connection sections with respect to a direction of helix of the strut. A link portion of the stent includes connection sections provided integrally with one helical portion and other helical portions adjacent to each other, and disposed in positions overlapped with each other at least partly along an axial direction of a cylindrical shape in a state of opposing to each other, and a biodegradable material connecting connection sections by being interposed between the connection sections. 1. A stent comprising:linear struts that define an outer periphery of a cylindrical shape with gaps therebetween; andlink portions that connect the struts with the gaps, whereinthe struts define a plurality of helical portions formed into a helical shape about an axis extending along an axial direction of the cylindrical shape, whereinthe link portion includes: one connection section and an other connection section provided integrally with one helical portion and an other helical portion adjacent to each other, and disposed at positions at least partly overlapping with each other along the axial direction of the cylindrical shape in a state of opposing each other, and a biodegradable material configured to connect the one connection section and the other connection section by being interposed between the one connection section and the other connection section, whereinthe one helical portion is disposed on a beginning end side of the plurality of helical portions with respect to the other helical portion, andat least part of the one connection section is disposed on the beginning end side of the plurality of helical portions with respect to at least part of the other connection section.2. The stent according to claim 1 , wherein each of the one connection section and the other ...

HEAT-TREATED BRAIDED INTRAVASCULAR DEVICES AND METHODS

A process for making a product including an expandable member is provided. The process can include braiding a plurality of wires to form a tubular structure that is capable of being manipulated such that a region of the tubular structure changes in diameter from a first dimension to a second dimension different from the first dimension. The process can also include initially heat-treating the tubular structure while the region is in the first dimension, changing the diameter of the tubular structure such that the region achieves the second dimension, and subsequently heat-treating the tubular structure while the region is in the second dimension. 1. A product made by a process , the process comprising:braiding a plurality of wires to form a tubular structure that is capable of being manipulated such that a region of the tubular structure changes in diameter from a first dimension to a second dimension different from the first dimension;initially heat-treating the tubular structure while the region is in the first dimension;changing the diameter of the tubular structure such that the region achieves the second dimension; andsubsequently heat-treating the tubular structure while the region is in the second dimension.2. The product of claim 1 , wherein the tubular structure is an intravascular device.3. The product of claim 2 , wherein the tubular structure is non-uniform in diameter.4. The product of claim 2 , wherein the tubular structure has opposing ends and wherein a tube diameter tapers at at least one of the opposing ends.5. The product of claim 2 , wherein the first dimension is greater than the second dimension.6. The product of claim 2 , wherein the initial heat-treating and the subsequent heat-treating occur for a period sufficient to enable the product to achieve an expansion ratio of at least about three.7. The product of claim 2 , the process further comprising enabling the tubular structure to cool between the initial heat treating and the subsequent ...

EXPANDABLE EXOSKELETON DEVICES

An exoskeleton device includes an expandable section. The expandable section may be positioned over an expander, such as a balloon catheter, and expand upon expansion of the expander. The expandable section may include struts that rotate as the expandable section expands. Edges of the struts may score surfaces (e.g., pathology, tissue, etc.) against which the struts are forced as the expandable element expands. The expandable element may carry a medicament, which may be delivered upon expansion of the expandable element. 1. An exoskeleton device capable of assembly with a balloon catheter , comprising:an expandable section including a plurality of struts, each strut extending along a length of the expandable section with the plurality of struts being positioned around a circumference of the expandable section, each strut of the plurality of struts including a plurality of sections, each section defined by a pair of parallel slits through the expandable section, each slit of the pair of parallel slits separating the section of a strut of the plurality of struts from an adjacent section of an adjacent strut of the plurality of struts, an arrangement of slits of the expandable section rendering the expandable section radially expandable, each strut including a scoring edge.2. The exoskeleton device of claim 1 , wherein an outer surface of the expandable element is substantially smooth when the expandable element is in an unexpanded state.3. The exoskeleton device of claim 1 , wherein the scoring edge comprises a blade.4. The exoskeleton device of claim 1 , wherein the scoring edge comprises teeth.5. An exoskeleton device capable of assembly with a balloon catheter claim 1 , comprising:an expandable section including a plurality of struts, each strut extending along a length of the expandable section with the plurality of struts being positioned around a circumference of the expandable section, each strut of the plurality of struts including a plurality of sections, ...

Implantable Biocompatible Expander Suitable For Treatment Of Constrictions Of Body Lumen

An implantable biocompatible expander suitable for implantation into a urinary duct, comprises an elongated sinusoidal ring comprising at least two proximal prongs and at least two distal prongs, wherein the expander is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander is configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter. 1. An implantable biocompatible expander suitable for treatment of benign prostatic hyperplasia (BPH), the expander comprising a single elongated undulating ring having three proximal prongs and three distal prongs, or five proximal prongs and five distal prongs, wherein the expander is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urethra, wherein the expander is configured to span a substantial section of the prostatic urethra between the bladder neck and external sphincter and cause in-situ expansion of the substantial section of the prostatic urethra. This application is a Continuation of U.S. application Ser. No. 15/775,257, filed on Nov. 14, 2016, which is the U.S. National Stage of International Application No. PCT/EP2016/077606, filed on Nov. 14, 2016, which designates the U.S., published in English, claims priority to EP Application No. 15194391.7, filed on Nov. 12, 2015, and claims the benefit of U.S. Provisional Application No. 62/321,639, filed on Apr. 12, 2016. The entire teachings of the above applications are incorporated herein by reference.Benign prostatic hyperplasia (BPH) involves ...

Flexible Delivery System and Implantable Stent for Surgical Use

The invention is a tube, which would be used to facilitate the movement of an object through the lumen of the tube or over the outside of the tube. The invention could also be used as a stent designed for indwelling in a body, where its purpose would be to assist in the drainage of liquid from one part of the body to another. The expected use of the tube would be in minimally invasive surgical procedures where greater flexibility, radial strength and pushability than that provided by prior art are desirable to improve the speed of operations and the success rate of operations; to reduce the level of trauma caused to patients and to improve patient recovery rate. It could have use in applications requiring an exceptionally flexible and highly pushable tubing such as invasive surgery in vessels that are or have become tortuous and narrow, such as veterinary procedures for small animals, paediatric ureteral conditions, angioplasty for certain conditions and certain neurovascular work. 1. A tube having a distal and proximal end comprising a wire or rod or a plurality of longitudinal wires or rods or rods in a tube and wherein said tube is reinforced radially by a series of hoops or similarly shaped objects having a lumen or incomplete hoops , or by a braid , mesh , coil or the like , wherein the ability to apply longitudinal pressure to the tube without deformation is increased by the wire or rod;further wherein the wire or rod adds structural rigidity to the tube; andfurther wherein said tube is capable of being inserted into a patient.2. The tube according to claim 1 , wherein said wire or rod or plurality of longitudinal wires or rod or rods in an inner tube is/are ground down at the distal end of the wire or rod or plurality of longitudinal wires or rod or rods in an inner tube; or said wire or rod or plurality of longitudinal wires or rod or rods in an inner tube further comprise a coil claim 1 , mesh claim 1 , braid or a series of hoops at the distal end claim 1 , ...

ACTIVELY CONTROLLABLE STENT, STENT GRAFT, HEART VALVE AND METHOD OF CONTROLLING SAME

A delivery apparatus comprises a handle portion and at least one rotatable drive shaft. The handle portion has an actuation mechanism and a display. The actuation mechanism includes a motor and one or more actuators. The rotatable drive shaft has a proximal end portion and a distal end portion. The proximal end portion is coupled to the motor, and the distal end portion is configured to be releasably coupled to a prosthetic heart valve. The actuation mechanism is configured to control and monitor expansion of the prosthetic heart valve, and the display is configured to display a diameter of the prosthetic heart valve. 1. A delivery apparatus , comprising:a handle portion having an actuation mechanism and a display, wherein the actuation mechanism includes a motor and one or more actuators; andat least one rotatable drive shaft having a proximal end portion and a distal end portion, wherein the proximal end portion is coupled to the motor, and the distal end portion is configured to be releasably coupled to a prosthetic heart valve,wherein the actuation mechanism is configured to control and monitor expansion of the prosthetic heart valve, andwherein the display is configured to display a diameter of the prosthetic heart valve.2. The delivery apparatus of claim 1 , wherein the display is configured to display a radial force imparted to native heart valve tissue by the prosthetic heart valve.3. The delivery apparatus of claim 1 , wherein the display is a digital display.4. The delivery apparatus of claim 1 , wherein the displayed diameter of the prosthetic heart valve is a real-time diameter of the prosthetic heart valve.5. The delivery apparatus of claim 1 , wherein the display is configured to display the diameter of the prosthetic heart valve as a circle that has a diameter that is the same as the diameter of the prosthetic heart valve.6. The delivery apparatus of claim 1 , wherein the actuation mechanism is configured to expand the prosthetic heart valve from a ...

Filter for Stent Retriever and Methods for Use Thereof

Apparatus, systems and methods for use thereof are disclosed. An example apparatus includes a filter having an expandable frame and a semipermeable membrane coupled to the expandable frame. The expandable frame has a cone-shape in an expanded position. An apex of the expandable frame is arranged at the filter's first end. The expandable frame has a plurality of polygonal supports coupled together at the apex and that are radially biased outward such that in the expanded position the polygonal supports are spaced apart at a second end of the filter with the semipermeable membrane extending therebetween. The semipermeable membrane covers an area defined by the polygonal supports. A plurality of struts each have a first and second end, and the first end of each of the struts is coupled to a second end of the expandable frame. A stent is coupled to each of the second ends of the struts. 1. An apparatus , comprising:a filter having an expandable frame and a semipermeable membrane coupled to the expandable frame, the expandable frame has a cone-shape in an expanded position, an apex of the expandable frame is arranged at a first end of the filter, the expandable frame has a plurality of polygonal supports that are coupled together at the apex of the expandable frame and that are radially biased outward such that in the expanded position the plurality of polygonal supports are spaced apart at a second end of the filter with the semipermeable membrane extending therebetween, wherein the semipermeable membrane covers at least a portion of an area defined by the plurality of the polygonal supports;a plurality of struts each having a first end and a second end, the first end of each of the plurality of struts coupled to a second end of the filter; anda stent coupled to each of the second ends of the plurality of struts.218.-. (canceled)19. An apparatus , comprising:{'sup': 2', '2, 'a filter having an expandable frame and a semipermeable membrane coupled to the expandable frame ...

STENT INCLUDING ANTI-MIGRATION CAPABILITIES

A medical device for treating a body lumen, such as a medical stent, includes an expandable scaffold configured to shift from a radially collapsed state to a radially expanded state. The stent includes a coating disposed along the outer surface of the expandable scaffold in which a portion of the coating includes a plurality of anti-migration members and one or more preferential separation regions. Each preferential separation region is configured to permit first and second regions of the coating to separate from one another along the preferential separation region therebetween as the expandable scaffold shifts from the radially collapsed state to the radially expanded state. 1. A medical stent for treating a body lumen , comprising:an expandable scaffold including a first end region, a second end region opposite the first end region and an outer surface, wherein the expandable scaffold is configured to shift from a radially collapsed state to a radially expanded state; anda coating disposed along the outer surface of the expandable scaffold, wherein at least a portion of the coating includes a plurality of anti-migration members, and wherein the coating further includes a preferential separation region, the preferential separation region positioned between a first region of the coating and a second region of the coating;wherein the preferential separation region is configured to permit the first region of the coating to separate from the second region of the coating along the preferential separation region therebetween as the expandable scaffold shifts from the radially collapsed state to the radially expanded state.2. The medical device of claim 1 , wherein the preferential separation region is configured to prevent the coating from separating from the outer surface of the expandable scaffold when the expandable scaffold shifts from the radially collapsed state to the radially expanded state.3. The medical device of claim 1 , wherein the separation of the first ...

PATENT DUCTUS ARTERIOSUS STENT

A retrievable stent configured to be positioned across the ductus arteriosus in a pediatric human patient to keep the ductus arteriosus open and ensure adequate blood flow is described. The retrievable stent can include a plurality of 4 to 8 struts that extend from a proximal end connector to a distal end tip, each having a curved proximal strut end, a curved distal strut end and an elongated strut body portion that extends from the curved proximal strut end to the curved distal strut end. When the stent is positioned in the ductus arteriosus, the curved proximal strut ends and the curved distal strut ends engage the ductus arteriosus to provide the radial force necessary to keep the ductus arteriosus open while the elongated strut body portions minimally engage the ductus arteriosus to prevent invagination into the vascular wall and thus allow for subsequent retrieval. 1. A retrievable stent configured to be positioned across the ductus arteriosus in a pediatric human patient to keep the ductus arteriosus open and ensure adequate blood flow , the stent comprising:a proximal end connector and a distal end tip disposed about a longitudinal axis, the proximal end connector including one or more retrieval mechanisms and a proximal end connector lumen that runs the length of the proximal end connector and, and the distal end tip having a distal end tip lumen that runs the length of the distal end tip, anda plurality of 4 to 8 struts extending from the proximal end connector to the distal end tip, each of the struts having a curved proximal strut end and a curved distal strut end wherein the curved proximal strut end and the curved distal strut end extend radially outward from the longitudinal axis and toward one another, each of the struts further having an elongated strut body portion that extends from the curved proximal strut end to the curved distal strut end, the elongated strut body portions extending parallel to each other;wherein, when the stent is positioned in ...

ENDOLUMINAL DEVICE AND METHOD

An endoluminal device can be configured for precise positioning during deployment within a vessel. The endoluminal device can be a tack, stent, vascular implant or other type of implant. The endoluminal device can have circumferential member with an undulating configuration having multiple inward and outward apexes and struts extending therebetween. Two of the struts can be used to establish a foot for the precise positioning of the device during deployment. A method of placing the endoluminal device can include withdrawing an outer sheath such that a portion of the endoluminal device is expanded prior to the rest of the endoluminal device. 119.-. (canceled)20. A self-expanding intravascular implant comprising: a plurality of proximal ring struts, each proximal ring strut of the plurality of proximal ring struts having a proximal end and a distal end;', 'a plurality of proximal ring proximal apices, wherein each proximal ring proximal apex of the plurality of proximal ring proximal apices connects two proximal ends of two proximal ring struts of the plurality of proximal ring struts; and', 'a plurality of proximal ring distal apices, wherein each proximal ring distal apex of the plurality of proximal distal apices connects two distal ends of two proximal ring struts of the plurality of proximal ring struts;, 'a proximal sinusoidal ring forming a proximal end of the self-expanding intravascular implant, the proximal sinusoidal ring comprising a plurality of distal ring struts, each distal ring strut of the plurality of distal ring struts having a proximal end and a distal end;', 'a plurality of distal ring distal apices, wherein each distal ring distal apex of the plurality of distal ring distal apices connects two distal ends of two distal ring struts of the plurality of distal ring struts; and', 'a plurality of proximal ring distal apices, wherein each distal ring proximal apex of the plurality of proximal ring distal apices connects two proximal ends of two distal ...

THIN-FILM MICROMESH COVERS FOR MEDICAL DEVICES AND RELATED METHODS

A thin-film covered stent device may include a thin-film mesh and a stent backbone covered by the thin-film mesh, thereby forming a dual-layer stent structure. The thin-film covered stent device may have smaller pores and a high pore density compared to conventional stents. For example, the thin-film covered stent device may have a slit length of between 50 and 250 micrometers and a pore density of between 134 and 227 pores per mm. The thin-film covered stent device facilitates rapid healing of tissue defects such as those encountered during the endovascular treatment of an aneurysm. 1. An apparatus comprising:a thin-film mesh having a plurality of diamond-shaped pores;{'sup': '2', 'wherein the thin-film mesh has a pore density of between 65 and 1075 pores per mmand a percent area coverage of between 16 and 66%.'}2. The apparatus of claim 1 , wherein the thin-film mesh is a three-dimensional cylindrical tube comprising Nitinol.3. The apparatus of claim 1 , wherein the thin-film mesh has a thickness of between 1 and 50 micrometers.4. The apparatus of claim 1 , wherein each slit has a length of between 50 and 250 micrometers.5. The apparatus of claim 1 , wherein the thin film mesh form struts around the diamond-shaped pores claim 1 , and wherein each strut has a width of between 1 and 25 micrometers.6. The apparatus of claim 1 , wherein the thin-film mesh has a first region and a second region claim 1 , the first region having a higher pore density than the second region.7. The apparatus of claim 1 , further comprising a stent backbone extending along a longitudinal axis claim 1 , and wherein the thin-film mesh is assembled on the stent backbone to form a thin-film covered stent.8. The apparatus of claim 7 , wherein the diamond-shaped pores have a long axis that is perpendicular to the longitudinal axis of the stent backbone.9. The apparatus of claim 7 , wherein the thin-film covered stent is a carotid stent configured to be deployment in a carotid artery claim 7 , ...

Delivery System And Method For Self-Centering A Proximal End Of A Stent Graft

A method for implanting a prosthesis centrally within a curved lumen includes loading a prosthesis into a delivery sheath, advancing the sheath in a patient towards the curved lumen to place at least the proximal end of the prosthesis within the curved lumen, and centering the proximal end of the prosthesis and/or the distal end of the sheath within the curved lumen. In a first advancing step, the outer catheter containing the inner sheath is advanced together towards the curved lumen to a location proximal of the curved lumen and, in a second advancing step, the inner sheath containing the prosthesis is advanced into the curved lumen to place at least the proximal end within the curved lumen while the outer catheter substantially remains at the location. After centering, the proximal end of the prosthesis is deployed centered within the curved lumen. 1loading a prosthesis into a delivery sheath, the prosthesis having a roximal end and the sheath having a distal end;advancing the sheath in a patient towards the curved lumen to place at least the proximal end within the curved lumen; andsubstantially aligning an inflow plane, which is defined by the proximal end of the prosthesis to be implanted in a patient, with an implant plane, which is defined by a ring of tissue inside a vessel at which the proximal end of the prosthesis is to be implanted, in a common plane that is transverse to a major longitudinal axis of the vessel.. A method for implanting a prosthesis centrally within a curved lumen, which comprises: This application is a continuation of U.S. patent application Ser. No. 14/575,673, filed Dec. 18, 2014, which is a continuation of U.S. patent application Ser. No. 13/024,882, filed Feb. 10, 2011, now abandoned, which is a continuation of U.S. patent application Ser. No. 11/701,876, filed Feb. 1, 2007, now abandoned, which claims the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Application No. 60/851,282, filed Oct. 12, 2006, 60/833,533, filed Jul. 26 ...

STENT

A stent is disclosed that improves passing properties and an expansion force while securing a cross-sectional area of the stent and decreasing a decreasable diameter of the stent. The stent has linear struts, which form an outer periphery of a cylindrical shape and a link portion connecting the struts to each other, in which the struts of the cylindrical shape are mounted on an outer peripheral surface of a dilatable and deformable balloon. The stent has a plurality of strut cross-sectional portions in a cross section perpendicular to an axial direction of the struts of the cylindrical shape, the strut cross-sectional portions adjacent to each other in a circumferential direction of the struts have shapes different from each other, and surfaces of the strut cross-sectional portions adjacent to each other are in contact with each other when the struts are mounted on the outer peripheral surface of the balloon. 1. A stent comprising:a plurality of linear struts, which form an outer periphery of a cylindrical shape in which a gap is formed;a link portion connecting the plurality of linear struts to each other in the gap, wherein the plurality of linear struts of the cylindrical shape are mounted on an outer peripheral surface of a dilatable and deformable balloon in a state where a diameter of the plurality of linear struts decreases; andwherein the stent has a plurality of strut cross-sectional portions in a cross section perpendicular to an axial direction of the plurality of linear struts of the cylindrical shape, the plurality of strut cross-sectional portions adjacent to each other in a circumferential direction of the plurality of linear struts of the cylindrical shape have shapes different from each other, and surfaces of the plurality of strut cross-sectional portions are in contact with each other when the plurality of linear struts are mounted on the outer peripheral surface of the balloon, which is in a deflated state, in a state where the diameter of the ...

CATHETER WITH INTEGRATED EMBOLIC PROTECTION DEVICE

A prosthetic heart valve delivery catheter includes an embolic filter to provide integrated embolic protection to inhibit the release of emboli into the aorta, the aortic arch or branch vessels, and other vasculature during transvascular heart valve replacement procedures. The embolic filter will usually be fixedly or movably attached to a shaft of the delivery catheter proximal of the prosthetic heart valve. 1. A prosthetic heart valve delivery catheter having integrated embolic protection , said catheter comprising:a catheter shaft having a distal portion;an expandable balloon on the distal portion of the catheter shafta prosthetic valve disposed on the expandable balloon on the distal portion of the catheter shaft; andan embolic filter disposed on the distal portion of the shaft at a location proximal of the prosthetic valve, said embolic filter having a collapsed configuration and a deployed configuration wherein an outer periphery of the filter is configured to contact a blood vessel wall;wherein the embolic filter comprises a filter structure having a narrow end coupled to the shaft and an open end located distally of the narrow end.2. The catheter of claim 1 , wherein the narrow end of the filter structure is fixedly attached to the catheter shaft.3. The catheter of claim 1 , wherein the narrow end of the filter structure is slidably mounted on the catheter shaft.4. The catheter of claim 3 , further comprising a proximal stop on the catheter shaft for limiting proximal movement of the embolic filter on the distal portion of the catheter shaft.5. The catheter of claim 4 , further comprising a distal stop on the catheter shaft for limiting distal movement of the embolic filter on the distal portion of the catheter shaft.6. The catheter of claim 1 , wherein the filter comprises a filter membrane and a support structure.7. The catheter of claim 6 , wherein the support structure comprises a plurality of self-expanding axial struts connected at their proximal ends ...

STENT

A stent includes corrugated pattern bodies and connection elements . A corrugated pattern is formed of corrugated units , corrugated unit including a first stem , a second stem , a third stem , a first top portion coupling a first end portion of the first stem and a first end portion of the second stem , and a second top portion coupling a second end portion of the second stem and a first end portion of the third stem . A second end portion of the third stem is connected to a second end portion of the first stem in another corrugated unit adjacent to corrugated unit. A first end portion of connection element is connected to the first top portion of one of adjacent ones of the corrugated units , and a second end portion of connection element is connected to the second end portion of the other one of the adjacent ones of the corrugated units 1. A stent to be inserted into a catheter while being compressed radially , comprising:a plurality of corrugated pattern bodies having a corrugated pattern and arranged next to each other in an axial direction; anda plurality of connection elements arranged in a direction about an axis and connecting the corrugated pattern bodies adjacent to each other,wherein the corrugated pattern is formed of a plurality of corrugated units, each corrugated unit includes a first stem, a second stem, a third stem, a first top portion coupling a first end portion of the first stem on one side and a first end portion of the second stem on one side, and a second top portion coupling a second end portion of the second stem on the other side and a first end portion of the third stem on one side, and a second end portion of the third stem on the other side is connected to a second end portion of the first stem on the other side in another one of the corrugated units adjacent to each corrugated unit in the direction about the axis, anda first end portion of each connection element on one side is connected to the first top portion of one of adjacent ...

IMPLANT DELIVERY DEVICES AND METHODS OF MAKING THE SAME

A method of assembling an apparatus for delivering an implant to a deployment site in a patient's vasculature, includes: positioning an implant engagement member at least partially within a lumen of a tubular structure, the tubular structure having a sidewall comprising a pattern of wires or struts; heating the implant engagement member; pressing at least a portion of the sidewall of the tubular structure radially inward into a surface of the implant engagement member so that the wires or the struts of the sidewall penetrate into the surface and create corresponding recesses therein; and after the recesses are created in the surface of the implant engagement member, hardening the implant engagement member. 1. A method of assembling an apparatus for delivering an implant to a deployment site in a patient's vasculature , the method comprising:positioning an implant engagement member at least partially within a lumen of a tubular structure, the tubular structure having a sidewall comprising a pattern of wires or struts;heating the implant engagement member;pressing at least a portion of the sidewall of the tubular structure radially inward into a surface of the implant engagement member so that the wires or the struts of the sidewall penetrate into the surface and create corresponding recesses therein; andafter the recesses are created in the surface of the implant engagement member, hardening the implant engagement member.2. The method of claim 1 , wherein the implant engagement member is positioned within the lumen of a tubular structure prior to heating the implant engagement member.3. The method of claim 1 , wherein the implant engagement member is attached to a distal end portion of an elongated core member prior to being positioned within the lumen of the tubular structure.4. The method of claim 1 , wherein the wires or the struts of the tubular structure are pressed into the surface of the implant engagement member by axially stretching the tubular structure.5. ...

STENT AND CORRESPONDING INSERTION DEVICE

A stent comprising a hollow tubular body, for instance made of polymeric material, extending along and about a longitudinal axis between two opposite open axial ends and having a substantially cylindrical lateral wall delimiting a longitudinal inner conduit; the body comprising a plurality of deformable sections arranged in succession along the axis; each section comprises a plurality of longitudinal portions of the lateral wall and a plurality of radial cuts formed through the lateral wall and which separate the longitudinal portions from one another. 1134467388961069833311ab. A stent () comprising a hollow tubular body () extending along and about a longitudinal axis (A) between two opposite open axial ends ( , ) and having a substantially cylindrical lateral wall () delimiting a longitudinal inner conduit (); the body () comprising a plurality of deformable sections () arranged in succession along the axis (A); each section () comprising a plurality of longitudinal portion () of the lateral wall () and a plurality of radial cuts () formed through the lateral wall () and which separate the longitudinal portions () from one another; characterized in that the sections () are plastically deformable as a consequence of axial compression and expansion of the body () remaining in a deformed shape taken on upon being stressed after axial compression of the body () even after been stressed , and returning to a minimum size closed configuration if the body () is submitted to elongation , so that the stent () has a progressive dilation and can be progressively dilated remaining stable in each configuration taken on and the stent () has a reversible dilation and once having been dilated can be taken back to the initial retracted configuration.2108. A stent according to claim 1 , wherein the cuts () of each section () are substantially parallel to one another and angularly staggered about the axis (A) with respect to one another.310. A stent according to claim 1 , wherein the ...

STRUCTURE FOR A CATHETER SLEEVE OR AN IMPLANT

An implant includes a tubular discontinuous structure formed of a plurality of webs that at least partially extend in a longitudinal direction. The plurality of webs includes at least one joint element having a main web substantially extending in the longitudinal direction. There is a continuous gap in the main web. At least one bridge web is arranged next to the main web in a circumferential direction (U) and connected to the main web in the longitudinal direction (A) in front of and behind the gap. 1. An implant , comprising:a tubular discontinuous structurer formed of a plurality of webs that at least partially extend in a longitudinal direction, whereinthe plurality of webs includes at least one joint element having a main web substantially extending in the longitudinal direction, a continuous gap in the main web, at least one bridge web arranged next to the main web in a circumferential direction (U) and connected to the main web in the longitudinal direction (A) in front of and behind the gap.2. The implant according to claim 1 , wherein the at least one bridge web has a semi-circular claim 1 , U-shaped claim 1 , V-shaped or meander shape.3. The implant according to claim 1 , wherein the at least one bridge web comprises at least one notched portion.4. The implant according to claim 1 , wherein the gap has a width (B) of at least 20 μm.52. The implant according to claim 1 , wherein a width (D) of the at least one bridge web corresponds to at least 20% of the web width of the main web claim 1 , and the sum of the widths of all bridge webs of a joint element does not exceed the width of the main web.6. The implant according to claim 1 , comprising a plurality of joint elements arranged next to one another in the circumferential direction (U).7. The implant according to claim 1 , made of a shape memory alloy.8. The implant according to claim 1 , the implant being a stent.9. The implant according to claim 4 , wherein the gap has a width (B) of 40 μm to 500 μm.10. ...

IMPLANTABLE VEIN FRAME

An implantable vein frame is contemplated in which two ring members are rigidly joined in spaced axial alignment via one or more interconnecting members. One of the one or more interconnecting members defines a protruding region that acts upon the implant placed within the frame and/or the vein that the vein frame is placed within to define a sinus region. The implant is placed within and scaffolded by the vein frame, and the vein frame is subsequently inserted within a vein via a venotomy, or interposed between two vein segments via vein interposition graft. The vein frame acts to support the structural integrity of the implant, and to scaffold and anchor the implant in place with the vein. 1. An implantable vein frame comprising:a first ring member;a second ring member; andat least one interconnecting member disposed between and rigidly interconnecting the first ring member and second ring member in a spaced relation;wherein at least one of the at least one interconnecting members defines a protruding region, at least a portion of the protruding region extending outside of a manifold region defined as a frustoconical volume between and delimited by the first ring member and the second ring member.2. The implantable vein frame of claim 1 , wherein the at least one interconnecting member rigidly interconnects the first ring member and second ring member in axial alignment perpendicular to a central axis defined between the respective centers of the first ring member and the second ring member.3. The implantable vein frame of claim 2 , wherein the first ring member and the second ring member are substantially circular claim 2 , have substantially the same internal diameter claim 2 , and have substantially the same external diameter.4. The implantable vein frame of claim 3 , comprising at least three interconnecting members disposed between and rigidly interconnecting the first ring member and second ring member.5. The implantable vein frame of claim 4 , wherein a ...

IMPLANTABLE BIOCOMPATIBLE EXPANDER SUITABLE FOR TREATMENT OF CONSTRICTIONS OF BODY LUMEN

An implantable biocompatible expander suitable for implantation into a urinary duct, comprises an elongated sinusoidal ring comprising at least two proximal prongs and at least two distal prongs, wherein the expander is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander is configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter. 1. An implantable biocompatible expander suitable for treatment of benign prostatic hyperplasia (BPH) , the expander comprising a single elongated undulating ring having three proximal prongs and three distal prongs , or five proximal prongs and five distal prongs , wherein the expander is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urethra , wherein the expander is configured to span a substantial section of the prostatic urethra between the bladder neck and external sphincter and cause in-situ expansion of the substantial section of the prostatic urethra.2. An implantable biocompatible expander according to in which the single elongated undulating ring is a single elongated sinusoidal ring.3. An implantable biocompatible expander according to having an anchoring element configured to anchor the expander in the prostatic urethra during use claim 1 , in which at least a part of the anchoring element is biodegradable to facilitate release of the expander after a period of time.4. An implantable biocompatible expander according to in which the anchoring element comprises a strut-embracing collar and one ...

PROSTHETIC HEART VALVE HAVING NON-LINEAR STRUTS

An implantable prosthetic device can include a frame that is radially expandable and compressible between a radially compressed configuration and a radially expanded configuration. The frame can include a plurality of struts, each strut comprising a first portion and a second portion separated by a deflection point. Each strut can be curved helically with respect to a first, longitudinal axis of the frame. The first portion of each strut can be curved in a first direction with respect to a first line parallel to a second axis that is perpendicular to the first, longitudinal axis of the frame, and the second portion of each strut can be curved in a second direction with respect to a second line parallel to the second axis. 1. An implantable prosthetic device , comprising:a frame that is radially expandable and compressible between a radially compressed configuration and a radially expanded configuration, the frame comprising a plurality of struts, each strut of the plurality of struts comprising a first portion and a second portion separated by a deflection point,wherein each strut of the plurality of struts is curved helically with respect to a first, longitudinal axis of the frame;wherein the first portion of each strut of the plurality of struts is curved in a first direction with respect to a first line parallel to a second axis that is perpendicular to the first, longitudinal axis of the frame;wherein the second portion of each strut the plurality of struts is curved in a second direction with respect to a second line parallel to the second axis;wherein each strut of the plurality of struts comprises a plurality of segments, and wherein each segment of the plurality of segments is curved.2. The implantable prosthetic device of claim 1 , wherein the first portion of the strut is convex with respect to an outflow end of the frame.3. The implantable prosthetic device of claim 1 , wherein the second portion of the strut is concave with respect to an outflow end of ...

ENDOVASCULAR MEDICAL DEVICE

An endovascular medical device that, when inserted into a vessel having one or more dilations and one or more narrowings in close proximity, redefines the vessel opening (lumen) along the longitudinal axis of the device, separates that lumen from the excess dilated volume within the dilation, and props open the lumen within the narrowing. The device is constructed in a manner to alter the hemodynamics at the interface between the redefined lumen and excess dilated volume, to facilitate the healing process within the dilated vessel. The device is constructed in a manner to provide sufficient radial force to open a narrowed portion of the vessel, to facilitate flow through the vessel. The device is constructed substantially from bioresorbable materials so as to eventually allow for the return of normal vasomechanics and cyclic wall stresses. 1. A bioresorbable endovascular medical device for placement into a diseased blood vessel that has a dilated portion adjacent a narrowed portion , the device comprising: a plurality of rings, each ring made up of a plurality of struts and each ring spaced apart from any adjacent ring of the plurality of rings along the longitudinal axis; and', 'at least one connecting strut to connect adjacent rings of the plurality of rings,', 'wherein when placed into the narrowed portion of the diseased blood vessel, the first part of the generally tubular structure is configured to increase the cross-sectional area of the narrowed portion and maintain an increased cross-sectional area; and, 'a generally tubular structure defining a longitudinal axis and a device lumen, the generally tubular structure having at least first and second parts spaced apart along the longitudinal axis, the at least first and second parts being discreet and yet integrally connected to one another and made of substantially the same material, the generally tubular structure configured for placement in a diseased blood vessel that has a dilated portion adjacent a ...

IMPLANTABLE MEDICAL DEVICE WITH BIAXIALLY ORIENTED POLYMERS

Methods and systems for manufacturing an implantable medical device, such as a stent, from a tube with desirable mechanical properties, such as improved circumferential strength and rigidity, are described herein. Improved circumferential strength and rigidity may be obtained by inducing molecular orientation in materials for use in manufacturing an implantable medical device. Methods of inducing circumferential molecular orientation by inducing circumferential flow in a molten polymer are disclosed. 120-. (canceled)21. A biodegradable stent comprising:a cylindrically-shaped scaffold comprising a biodegradable polymer including a poly(L-lactide) based polymer, the scaffold being formed by cutting a pattern into a tube at a second diameter,wherein the scaffold includes a plurality of interconnecting struts,wherein the scaffold has induced molecular orientation in the circumferential direction induced by radially expanding the tube from a first diameter to the second diameter prior to cutting the pattern, the second diameter being larger than the first diameter,wherein the induced molecular orientation increases strength in the circumferential direction of the scaffold which increases a radial strength of the scaffold,wherein the tube is radially expanded at a temperature above a glass transition temperature (Tg) of the polymer at which an onset of segmental mobility of polymer segments occurs,wherein at the temperature of radial expanding polymer segments have sufficient segmental mobility to move past one another as the tube is radially expanded to achieve a degree of molecular orientation that cannot be achieved at a temperatures below the Tg at which there is no onset of segmental mobility of polymer segments,wherein the biodegradable polymer is semicrystalline and comprises crystalline domains and amorphous domains, both domains having the induced molecular orientation, andwherein the scaffold is radially expandable by a balloon in a blood vessel in a body from a ...

IMPLANTABLE VEIN FRAME

An implantable vein frame is contemplated in which two ring members are rigidly joined in spaced axial alignment via one or more interconnecting members. One of the one or more interconnecting members defines a protruding region that acts upon the implant placed within the frame and/or the vein that the vein frame is placed within to define a sinus region. The implant is placed within and scaffolded by the vein frame, and the vein frame is subsequently inserted within a vein via a venotomy, or interposed between two vein segments via vein interposition graft. The vein frame acts to support the structural integrity of the implant, and to scaffold and anchor the implant in place with the vein. 1. An implantable vein frame comprising:a first ring member;a second ring member; andat least one interconnecting member disposed between and rigidly interconnecting the first ring member and second ring member in a spaced relation;wherein at least one of the at least one interconnecting members defines a protruding region, at least a portion of the protruding region extending outside of a manifold region defined as a frustoconical volume between and delimited by the first ring member and the second ring member.2. The implantable vein frame of claim 1 , wherein the at least one interconnecting member rigidly interconnects the first ring member and second ring member in axial alignment perpendicular to a central axis defined between the respective centers of the first ring member and the second ring member.3. The implantable vein frame of claim 2 , wherein the first ring member and the second ring member are substantially circular claim 2 , have substantially the same internal diameter claim 2 , and have substantially the same external diameter.4. The implantable vein frame of claim 3 , comprising at least three interconnecting members disposed between and rigidly interconnecting the first ring member and second ring member.5. The implantable vein frame of claim 4 , wherein a ...

Thoracic Aortic Covered Stent

The present invention relates to a thoracic aortic covered stent (), comprising a bare stent segment () and a covered stent segment (). The bare stent segment () comprises a bare wave-shaped ring (); the covered stent segment () has a lesser curvature side region (), a greater curvature side region (), and two opposite intermediate regions () located between the lesser curvature side region () and the greater curvature side region () respectively; and the covered stent segment () comprises a first proximal wave-shaped ring (). The stent () further comprises a first connecting member (), a first side connecting member () and a second side connecting member () all connected to the bare wave-shaped ring () and the first proximal wave-shaped ring (), wherein the first connecting member () is arranged in the lesser curvature side region (), and the first side connecting member () and the second side connecting member () are arranged in the two intermediate regions () respectively. The stent () when located near the lesser curvature side () with a relatively small radius of curvature has a connecting assembly rigidly connecting the bare stent segment () and the covered stent segment (), and through the constraints thereof, the bare stent segment () can be effectively prevented from overturning towards the vessel wall during the release process, so that the proximal end of the covered stent segment () is securely apposed to the wall, thereby avoiding the “turnover” effect. 1. A thoracic aortic covered stent , comprising a bare stent segment and a covered stent segment , the bare stent segment comprising a bare wave-shaped ring; the covered stent segment having a lesser curvature side region , a greater curvature side region , and two opposite intermediate regions respectively located between the lesser curvature side region and the greater curvature side region; and the covered stent segment comprising a first proximal wave-shaped ring , wherein the thoracic aortic covered ...

LOW PROFILE NON-SYMMETRICAL STENT

A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition. 164-. (canceled)65. A stent comprising:a plurality of proximal and distal apices connected by a plurality of generally straight portions,where each proximal apex comprises a first curved portion and each distal apex comprises a second curved portion, where the first curved portion and the second curved portion each comprises at least one radius of curvature, and the radius of curvature of at least one of the proximal apices is greater than the radius of curvature of at least one of the distal apices; andwhere a first radius of curvature of one of the proximal apices is greater than 1.5 mm.66. The stent of claim 65 , where the first radius of curvature of one of the proximal apices is from about 4 mm to about 9 mm.67. The stent of claim 65 , where a second radius of curvature of one of the distal apices is from about 0.5 mm to about 1.5 mm claim 65 , andwhere a ratio of the second radius of curvature to the first radius of curvature is about 1:2.6 to about 1:18.68. The stent of claim 67 , where the second radius of curvature is about 1 mm claim 67 , and the first radius of curvature is about 6 mm.69. The stent of claim 65 , comprising a generally continuous plurality of proximal and distal apices claim 65 , the outer surfaces of which define a cylinder having a generally consistent circumference.70. The stent of claim 65 , where each of the proximal apices are circumferentially offset from the distal apices.71. The stent of comprising a generally continuous plurality of proximal and distal apices claim 65 , the outer surfaces of which define a frustum of a cone.72. A stent ...

METHODS AND DEVICES FOR HEART VALVE REPAIR

A system for reshaping a valve annulus includes an elongate template having a length along a longitudinal axis and at least one concavity in a generally lateral direction along said length. The pre-shaped template is positioned against at least a region of an inner peripheral wall of the valve annulus, and at least one anchor on the template is advanced into a lateral wall of the valve annulus to reposition at least one segment of the region of the inner peripheral wall of the valve annulus into said concavity. In this way, a peripheral length of the valve annulus can be foreshortened and/or reshaped to improve coaption of the valve leaflets and/or to eliminate or decrease regurgitation of a valve. 1. A stent prosthesis for valve repair or replacement comprising:a scaffold comprising patterned structural elements, said stent being expandable from a crimped configuration to an expanded configuration and having sufficient strength to support a body annulus in the expanded configurations, wherein the scaffold comprises at least one circumferential ring comprising struts and crowns, wherein at least one strut in said at least one ring comprises at least one separation region and wherein said at least one separation region comprises a male-female junction and a biodegradable polymer and/or adhesive, said separation region being held together in the crimped configuration and is configured to separate after expansion of the stent under physiologic environment; andat least one valve configured to be coupled to said at least one ring, said valve allowing blood to flow in one direction during the cardiac cycle.2. An implant for reshaping a valve annulus , said implant comprising:a pre-shaped metallic template having a length in an axial direction and at least one concavity in a lateral direction along said length, said concavity having a concave surface configured to be positioned adjacent to a peripheral wall of the valve annulus; andat least one anchor configured to be ...

Liquid catheter, particularly a urinary catheter, method and delivery device

A liquid catheter, in particular a urinary catheter, includes a catheter shaft part ( 21 ) with a longitudinal liquid channel extending between a proximal and distal side thereof, and an anchoring body ( 22 ). The catheter body is intended to be received fully internally in a body cavity, such as in particular the urine bladder ( 50 ), and to drain the bladder from inside via the urethra ( 51 ). The catheter body has a length to span a distance between the bladder and a closure point ( 35 ) of the sphincter urethra. An operating member ( 24,25 ) is connected durably to the catheter body to enable a user to carry the catheter body transluminally out of the bladder past the closure point. An insertion device for the catheter includes an insertion sleeve which can be carried transluminally as far as the urine bladder and from which the catheter body can be carried into the bladder.

Welded Stent and Stent Delivery System

A welded stent and stent delivery system, with a stent including a first strut having a first strut nickel titanium alloy layer and nickel titanium soluble core, the first strut nickel titanium alloy layer being disposed around the first strut nickel titanium soluble core; and a second strut having a second strut nickel titanium alloy layer and nickel titanium soluble core, the second strut nickel titanium alloy layer being disposed around the second strut nickel titanium soluble core, the second strut nickel titanium alloy layer being connected to the first strut nickel titanium alloy layer with a weld. The first and second strut nickel titanium alloy layers are made of a nickel titanium alloy, the first and second strut nickel titanium soluble cores are made of a nickel titanium soluble material, and the weld is made of an alloy of the nickel titanium alloy and the nickel titanium soluble material. 112-. (canceled)13: A method of manufacturing a stent comprising:providing a first strut having in transverse cross section a first strut nickel titanium alloy layer and a first strut nickel titanium soluble core, the first strut nickel titanium alloy layer being disposed around and immediately adjacent to the first strut nickel titanium soluble core, the first strut nickel titanium alloy layer being made of a nickel titanium alloy, the first strut nickel titanium soluble core being made of a nickel titanium soluble material;providing a second strut having in transverse cross section a second strut nickel titanium alloy layer and a second strut nickel titanium soluble core, the second strut nickel titanium alloy layer being disposed around and immediately adjacent to the second strut nickel titanium soluble core, the second strut nickel titanium alloy layer being made of the nickel titanium alloy, the second strut nickel titanium soluble core being made of the nickel titanium soluble material;positioning the first strut adjacent to the second strut at a weld point;at ...

Replacement Mitral Valves

A prosthetic mitral valve includes an anchor assembly, an annular strut frame, and a plurality of replacement leaflets secured to the annular strut frame. The anchor assembly includes a ventricular anchor, an atrial anchor, and a central portion therebetween. The annular strut frame is disposed radially within the anchor assembly. An atrial end of the annular strut frame is attached to the anchor assembly such that a ventricular end of the annular strut frame is spaced away from the anchor assembly. 1. A prosthetic mitral valve configured to expand from a collapsed configuration to an expanded configuration comprising:an anchor assembly comprising an atrial anchor, a ventricular anchor, and a central portion therebetween, in the expanded configuration, the atrial anchor extends radially outwards relative to the central portion and includes a plurality of extensions;an annular strut frame disposed radially within the anchor assembly and attached thereto in the collapsed configuration; anda plurality of replacement leaflets secured to the annular strut frame,wherein at least one of the plurality of extensions includes an eyelet for attaching tether thereto for delivery of the prosthetic mitral valve.2. The prosthetic mitral valve of claim 1 , wherein the strut frame includes a plurality of linear posts and a plurality of circumferential zig-zag features extending therearound.3. The prosthetic mitral valve of claim 1 , wherein the prosthetic mitral valve is configured to self-expand from the collapsed configuration to the expanded configuration.4. The prosthetic mitral valve of claim 1 , wherein the anchor assembly includes a plurality of hooks extending from the central portion and configured to engage tissue.5. The prosthetic mitral valve of claim 1 , wherein in the expanded configuration claim 1 , the ventricular anchor extends outward from the central portion.6. The prosthetic mitral valve of claim 5 , wherein the anchor assembly forms an hour-glass shape.7. A ...

STENT WITH ANTI-MIGRATION FEATURES

An endoprosthesis includes an expandable tubular framework having a first end, a second end, and a lumen extending therethrough along a longitudinal axis. The expandable tubular framework includes a plurality of interconnected struts. The interconnected struts include a radially outward face which includes a plurality of anti-migration grooves defining anti-migration teeth formed therebetween. The anti-migration teeth are configured to engage tissue to resist migration of the endoprosthesis within a body lumen. 1. An endoprosthesis comprising:an expandable tubular framework having a first end, a second end, and a lumen extending therethrough along a longitudinal axis, the expandable tubular framework including a plurality of interconnected struts;the interconnected struts including a radially outward face;wherein the radially outward face includes a plurality of anti-migration grooves defining anti-migration teeth formed therebetween;wherein the anti-migration teeth are configured to engage tissue to resist migration of the endoprosthesis within a body lumen.2. The endoprosthesis of claim 1 , wherein each of the anti-migration teeth include a first flank and a second flank converging toward the first flank.3. The endoprosthesis of claim 2 , wherein the first flank slopes radially outward toward the first end at an acute angle with respect to the longitudinal axis.4. The endoprosthesis of claim 3 , wherein the second flank slopes radially outward toward the first end at an acute angle with respect to the longitudinal axis.5. The endoprosthesis of claim 4 , wherein the angle of the first flank is less than the angle of the second flank.6. The endoprosthesis of any one of claims 2 , wherein the first flank and the second flank converge to a point along a line.7. The endoprosthesis of any one of claims 2 , wherein the anti-migration teeth further include a flat surface intersecting both the first flank and the second flank.8. The endoprosthesis of any one of claims 2 , ...

PULMONARY ARTERY IMPLANT APPARATUS AND METHODS OF USE THEREOF

The present invention relates to an implantable apparatus and methods of use thereof for treating congestive heart failure. An apparatus of this invention may be anchored by implantation of a section of the apparatus within in a branch pulmonary artery, for example the left pulmonary artery, which then positions and anchors another section, for example a device frame section of the apparatus within the main pulmonary artery. A medical device may be attached to the anchored device frame. 2. The apparatus according to claim 1 , wherein the anchor frame is placed in the left pulmonary artery or the right pulmonary artery.3. The apparatus according to claim 2 , wherein when said anchor frame is place in the left pulmonary artery claim 2 , said anchor frame further comprises a protrusion which extends into the right pulmonary artery when said apparatus is in an expanded position.4. (canceled)5. The apparatus according to claim 1 , wherein the apparatus is deliverable in a collapsed configuration by a transcatheter procedure.6. The apparatus according to claim 1 , wherein said device frame further comprises a medical device selected from the group comprising a flow restrictor claim 1 , a valve claim 1 , a filter claim 1 , a pacemaker claim 1 , a sensor or a drug delivery platform.7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)17. The method according to claim 16 , wherein said transcatheter delivery is performed with the apparatus in a collapsed configuration.19. The method according to claim 18 , wherein said anchor frame is placed in the left pulmonary artery or in the right pulmonary artery.20. The method according to claim 19 , wherein when said anchor frame is place in the left pulmonary artery said anchor frame further comprises a protrusion which extends into the right pulmonary artery when said apparatus is in an expanded position.21. (canceled)22. (canceled)23. (canceled)24. (canceled)25. ...

Tubular Structures with Variable Support

A tubular structure having variable support includes a tubular member and a structural support member with a flexible tubular member over the structural support member, such that the flexible tubular member can engage and disengage or squeeze and release the structural support member. The structural support member can be a tubular mesh, stent, framework, skeleton, braid or other flexible framework. A fluid passage can be used to inflate and deflate the flexible tubular member. Methods of assembly and methods of use are also described.

IMPLANTABLE DEVICE WITH BRIDGE

This invention relates to an implantable device for a physiologic sensor, comprising an implantable expandable anchor, a bridge on which the sensor is secured, as well as an optional adapting ring. The invention also relates to a method of monitoring bodily functions using the anchor and sensor. The anchor is compressed and the bridge assumes an elongated shape during delivery to a target lumen. Upon deployment at the target site, the anchor expands and the bridge bows into the interior lumen of the expanded anchor, distancing the sensor from the vessel wall. This invention also relates to a method of manufacturing said device and a method of implanting a sensor. 1. A method of making an implantable device comprising an expandable anchor , a bridge and a sensor , wherein the expandable anchor has a compressed and an expanded configuration , said anchor having a longitudinal axis and forming an anchor wall , said bridge is aligned with the longitudinal axis of the anchor and aligned with the anchor wall when said anchor is in the compressed configuration , and said bridge protrudes into said lumen when said anchor is in the expanded configuration , comprising the steps of:(a) manufacturing the anchor and the bridge as a single unit;(b) assembling the anchor and bridge on a mandrel having a diameter of the desired expanded anchor and a divot;(c) positioning the bridge over the divot;(d) heat treating the anchor and the bridge to a thermomechanically preset shape; and(e) assembling the sensor onto the bridge.2. The method of claim 1 , further comprising: crimping the implantable device onto a delivery catheter.3. The method of claim 1 , wherein the sensor is attached to the bridge by an adapting ring in step (e).4. The method of claim 1 , wherein an angiographic marker is inserted between the sensor and the bridge.5. The method of claim 1 , wherein the anchor and bridge are formed from a flat sheet of metal.6. The method of claim 1 , wherein the anchor and bridge are ...

STENT FOR INHIBITING RESTENOSIS AND STIMULATING REENDOTHELIALIZATION PREPARED BY FEMTOSECOND LASER PROCESSING AND METHOD OF PREPARING THE SAME

Provided are a stent in which a surface of a stent strut is treated by femtosecond laser radiation and is modified by a natural polymer and a method of preparing the stent. The stent and the preparing method may inhibit restenosis and stimulate reendothelialization. 1. A stent in which a surface of a stent strut is treated by femtosecond laser radiation and is modified by a natural polymer.2. The stent of claim 1 , wherein the stent has at least one groove on the femtosecond laser-irradiated surface thereof claim 1 , the at least one groove having a diameter of about 1 μm to about 100 μm and a depth of about 0.01 μm to about 100 μm.3. The stent of claim 1 , wherein the natural polymer is at least one selected from the group consisting of hyaluronic acid claim 1 , alginic acid claim 1 , pectin claim 1 , carrageenan claim 1 , chondroitin sulfate claim 1 , dextran sulfate claim 1 , chitosan claim 1 , polylysine claim 1 , collagen claim 1 , gelatin claim 1 , carboxymethylchitin claim 1 , fibrin claim 1 , dextran claim 1 , agarose claim 1 , pullulan claim 1 , polyacrylamide (PAAm) claim 1 , poly(N-isopropylacrylamide-co-acrylic acid) (P(NIPAAm-co-AAc)) claim 1 , poly(N-isopropylacrylamide-co-ethyl methacrylate) (P(NIPAAmco-EMA)) claim 1 , polyvinyl acetate/polyvinyl alcohol (PVAc/PVA) claim 1 , poly(N-vinylpyrrolidone) (PVP) claim 1 , poly(methyl methacrylate-co-hydroxyethyl methacrylate) (P(MMA-co-HEMA)) claim 1 , poly(polyethylene glycol-co-peptide) (P(PEG-copeptide)) claim 1 , alginate-g-(polyethylene oxide-polypropylene oxide-polyethylene oxide) (alginate-g-(PEOPPO-PEO)) claim 1 , poly(polylactic acid-co-glycolic acid)-co-serine) (P(PLGA-co-serine)) claim 1 , collagen-acrylate claim 1 , alginate-acrylate claim 1 , poly(hydroxypropyl methacrylamide-g-peptide) (P(HPMA-g-peptide)) claim 1 , poly(hydroxyethyl methacrylate/Matrigel) (P(HEMA/Matrigel)) claim 1 , hyaluronic acid-g-N-isopropyl acrylamide (HA-g-NIPAAm) claim 1 , polyethylene oxide (PEO) claim 1 , a ...

Endovascular graft systems and methods for deployment in main and branch arteries

Endovascular systems for deployment at branched arteries include a main tubular graft body deployable within a main artery including a proximal end and an opposed distal end. The proximal and distal ends have a tubular graft wall therein between. A plurality of inflatable channels are disposed along the main tubular graft body, and at least one stent segment is disposed along the tubular graft wall of the main tubular graft body. The plurality of inflatable channels are configured to be inflatable with an inflation medium. The at least one stent segment is disposed between two or more adjacent inflatable channels of the plurality of inflatable channels.

Anti-migration stent

An illustrative stent includes an elongated tubular member comprising at least one strut or filament forming a tubular wall having a plurality of cells extending through a thickness of the tubular wall. The elongated tubular member may be configured to move between a radially collapsed configuration and a radially expanded configuration. A coating is disposed on the elongated tubular member and spanning the plurality of cells. The coating forms a pocket within at least some of the cells of the plurality of cells and extends radially inward of the tubular wall to define a void. In some instances, a partition or wall is positioned within at least some of the pockets and transects the void.

Welded Stent and Stent Delivery System

A welded stent and stent delivery system, with a stent including a first strut having a first strut nickel titanium alloy layer and nickel titanium soluble core, the first strut nickel titanium alloy layer being disposed around the first strut nickel titanium soluble core; and a second strut having a second strut nickel titanium alloy layer and nickel titanium soluble core, the second strut nickel titanium alloy layer being disposed around the second strut nickel titanium soluble core, the second strut nickel titanium alloy layer being connected to the first strut nickel titanium alloy layer with a weld. The first and second strut nickel titanium alloy layers are made of a nickel titanium alloy, the first and second strut nickel titanium soluble cores are made of a nickel titanium soluble material, and the weld is made of an alloy of the nickel titanium alloy and the nickel titanium soluble material.

Methods of using compressible tubes for placing implants

Medical delivery devices include a needle and a flexible compressible impermeable tube attached to the needle. The compressible tube has an open interior channel. The device is adapted to releasably hold a length of a medical implant in the open interior channel of the tube. The medical implant can be slidably inserted into the interior channel of the tube and is loosely held by the tube.

STENT AND METHOD FOR MANUFACTURING THEREOF

According to one aspect of the present disclosure, a method and technique for manufacturing a stent are disclosed. The stent is a non-metallic stent having a furled small-diameter state and an expanded large-diameter state where the stent, in the furled small-diameter state, includes a plurality of central lobes arranged at spaced-apart intervals and extending longitudinally defining a stent axis, the plurality of central lobes defining a cylindrical plane of the stent. The stent also includes at least one peripheral lobe formed on at least one of the plurality of central lobes, the peripheral lobe oriented along the cylindrical plane. 1. A non-metallic stent having a furled small-diameter state and an expanded large diameter state , the stent comprising , in the furled small-diameter state:a first plurality of central lobes arranged at spaced-apart intervals and extending longitudinally defining a stent axis;a second plurality of central lobes arranged at spaced-apart intervals and extending longitudinally along the stent axis;at least one peripheral lobe formed on at least one of the first plurality of central lobes and on at least one of the second plurality of central lobes, each lobe of the first plurality of central lobes, the second plurality of central lobes, and the at least one peripheral lobe formed by a coiled rotation of an element, wherein the element comprises a Poly-L-Lactic Acid polymer fiber loaded with a material; andwherein, as the element is rotated in a rotational winding direction, the first plurality of central lobes are formed in a first longitudinal direction along the stent axis and the second plurality of central lobes are formed in a second longitudinal direction along the stent axis to form respective first and second helices having an opposing winding pattern along the stent axis.2. The stent of claim 1 , wherein the material is a radio-opaque material.3. The stent of claim 1 , wherein the at least one peripheral lobe comprises a ...

VASCULAR FLOW DIVERSION

Devices that can be delivered into a vascular system to divert flow are disclosed herein. According to some embodiments, devices are provided for treating aneurysms by diverting flow. An expandable device can comprise, for example, a plurality of connector sections and a plurality of bridge sections. Each of the connector sections may extend circumferentially about the expandable device and include a plurality of connector struts. Each of the plurality of bridge sections may be attached to and extend between two of the connector sections and comprise a plurality of parallel, non-branching, helical bridge members. 1. An expandable device comprising:a plurality of connector sections, each of the connector sections extending circumferentially about the expandable device and comprising a plurality of connector struts, the connector struts including generally linear struts and serpentine struts, and wherein each of the generally linear struts is coupled to one of the serpentine struts at an apex; anda plurality of bridge sections, each of the bridge sections attached to and extending between two of the connector sections and comprising a plurality of parallel, non-branching, helical bridge members, wherein at least some of the bridge members directly connect to one of the apices.2. The expandable device of claim 1 , wherein at least some of the bridge members individually connect to a corresponding connector section at a location that is offset from a centerline of the one of the apices to which the respective bridge member connects.3. The expandable device of claim 1 , wherein claim 1 , for each pair of generally linear struts and serpentine struts connected by one of the apices claim 1 , at least a portion of the serpentine strut is parallel to at least a portion of the generally linear strut.4. The expandable device of claim 1 , wherein a first one of the bridge sections comprises first bridge members winding in a first helical direction about an axis of the ...

ENDOVASCULAR IMPLANT

A plaque tack can be used for holding plaque against blood vessel walls such as in treating atherosclerotic occlusive disease. The plaque tack can be formed as a thin, annular band for holding loose plaque under a spring or other expansion force against a blood vessel wall. Focal elevating elements and/or other features, such as anchors, can be used to exert a holding force on a plaque position while minimizing the amount of material surface area in contact with the plaque or blood vessel wall and reducing the potential of friction with the endoluminal surface. This approach offers clinicians the ability to perform a minimally invasive post-angioplasty treatment and produce a stent-like result without using a stent. 110.-. (canceled)11. An intravascular implant having a radiopaque marker , the intravascular implant comprising:a proximal undulating ring on a proximal side of the intravascular implant comprising a plurality of proximal struts, the plurality of proximal struts comprising a plurality of first proximal struts and a plurality of second proximal struts, wherein each first proximal strut of the plurality of first proximal struts is connected to at least one second proximal strut of the plurality of second proximal struts, wherein a proximal end of each first proximal strut of the plurality of first proximal struts is connected to a proximal end of a second proximal strut of the plurality of second proximal struts to form a plurality of first proximal apices and a distal end of each first proximal strut of the plurality of first proximal struts is connected to a distal end of a second proximal strut of the plurality of second proximal struts to form a plurality of first distal apices, wherein at least one first proximal apex of the plurality of first proximal apices defines a proximal end of the intravascular implant;a distal undulating ring on a distal side of the intravascular implant comprising a plurality of distal struts, the plurality of distal struts ...

ENDOVASCULAR IMPLANT

A plaque tack can be used for holding plaque against blood vessel walls such as in treating atherosclerotic occlusive disease. The plaque tack can be formed as a thin, annular band for holding loose plaque under a spring or other expansion force against a blood vessel wall. Focal elevating elements and/or other features, such as anchors, can be used to exert a holding force on a plaque position while minimizing the amount of material surface area in contact with the plaque or blood vessel wall and reducing the potential of friction with the endoluminal surface. This approach offers clinicians the ability to perform a minimally invasive post-angioplasty treatment and produce a stent-like result without using a stent. 110.-. (canceled)11. A self-expanding intravascular implant comprising:a proximal undulating ring on a proximal side of the intravascular implant comprising a plurality of proximal struts, the plurality of proximal struts comprising a plurality of first proximal struts and a plurality of second proximal struts, wherein each first proximal strut of the plurality of first proximal struts is connected to at least one second proximal strut of the plurality of second proximal struts, wherein a proximal end of each first proximal strut of the plurality of first proximal struts is connected to a proximal end of a second proximal strut of the plurality of second proximal struts to form a plurality of first proximal apices and a distal end of each first proximal strut of the plurality of first proximal struts is connected to a distal end of a second proximal strut of the plurality of second proximal struts to form a plurality of first distal apices, wherein at least one first proximal apex of the plurality of first proximal apices defines a proximal end of the intravascular implant;a distal undulating ring on a distal side of the intravascular implant comprising a plurality of distal struts, the plurality of distal struts comprising a plurality of first distal ...

ENDOVASCULAR IMPLANT

A plaque tack can be used for holding plaque against blood vessel walls such as in treating atherosclerotic occlusive disease. The plaque tack can be formed as a thin, annular band for holding loose plaque under a spring or other expansion force against a blood vessel wall. Focal elevating elements and/or other features, such as anchors, can be used to exert a holding force on a plaque position while minimizing the amount of material surface area in contact with the plaque or blood vessel wall and reducing the potential of friction with the endoluminal surface. This approach offers clinicians the ability to perform a minimally invasive post-angioplasty treatment and produce a stent-like result without using a stent. 110.-. (canceled)11. A system for delivering a vascular prosthesis , comprising: a plurality of annular recesses disposed adjacent the distal end of the elongate body;', 'a plurality of proximal shoulders;', 'a plurality of distal shoulders, wherein each annular recess of the plurality of annular recesses is situated between one proximal shoulder of the plurality of proximal shoulders and one distal shoulder of the plurality of distal shoulders, wherein each shoulder of the pluralities of proximal and distal shoulders has a radially extending face perpendicular to the longitudinal axis; and', 'a plurality of cylindrical regions, wherein each cylindrical region of the plurality of cylindrical regions is formed by a proximal shoulder of the plurality of proximal shoulders at an adjacent first annular recess of the plurality of annular recesses and a distal shoulder of the plurality of distal shoulders at an adjacent second annular recess of the plurality of annular recesses, wherein each cylindrical region of the plurality of cylindrical regions has an outer diameter greater than an outer diameter of the adjacent first and second annular recesses of the plurality of annular recesses and comprises an annular radiopaque marker band;, 'an elongate body ...

REPLACEMENT MITRAL VALVES

A prosthetic mitral valve includes an anchor assembly, a strut frame, and a plurality of replacement leaflets secured to the annular strut frame. The anchor assembly includes a ventricular anchor, an atrial anchor, and a central portion therebetween. The ventricular anchor and the atrial anchor are configured to flare radially outwards relative to the central portion. The annular strut frame is disposed radially within the anchor assembly and is attached to the anchor assembly. The central portion is configured to align with a native valve orifice and the ventricular anchor and the atrial anchor are configured to compress native cardiac tissue therebetween. 1. A prosthetic mitral valve comprising:an anchor assembly comprising a ventricular anchor, an atrial anchor, and a central portion therebetween, wherein the ventricular anchor and the atrial anchor are configured to flare radially outwards relative to the central portion, further wherein the atrial anchor includes a plurality of atrial cells and the ventricular anchor includes a plurality of ventricular cells;an annular strut frame disposed radially within the anchor assembly, wherein a first plurality of the atrial cells are positioned radially inwards relative to a second plurality of the atrial cells such that the first plurality of cells attach the strut frame to the anchor assembly; anda plurality of replacement leaflets secured to the annular strut frame.2. The prosthetic mitral valve of claim 1 , wherein the central portion is configured to align with a native valve orifice claim 1 , and wherein the ventricular anchor and the atrial anchor are configured to compress native cardiac tissue therebetween.3. The prosthetic mitral valve of claim 1 , wherein an atrial end of the strut frame is attached to the anchor assembly.4. The prosthetic mitral valve of claim 1 , wherein atrial tips of the strut frame are attached to the anchor assembly.5. The prosthetic mitral valve of claim 1 , wherein an atrial end of ...

REPLACEMENT MITRAL VALVES

A prosthetic mitral valve includes an anchor assembly, a strut frame, and a plurality of replacement leaflets secured to the annular strut frame. The anchor assembly includes a ventricular anchor, an atrial anchor, and a central portion therebetween. The ventricular anchor and the atrial anchor are configured to flare radially outwards relative to the central portion. The annular strut frame is disposed radially within the anchor assembly and is attached to the anchor assembly. The central portion is configured to align with a native valve orifice and the ventricular anchor and the atrial anchor are configured to compress native cardiac tissue therebetween. 2. The prosthetic mitral valve of claim 1 , wherein the valve support assembly includes an anchor assembly comprising the ventricular and atrial anchors and an annular strut frame including the plurality of slots claim 1 , wherein the annular strut frame is positioned radially within the anchor assembly.3. The prosthetic mitral valve of claim 2 , wherein the plurality of slots are in a portion of the strut frame that extends past the anchor assembly in the ventricular direction.4. The prosthetic mitral valve of claim 2 , wherein the anchor assembly further comprises a central portion claim 2 , the ventricular and atrial anchors flared radially outwards relative to the central portion.5. The prosthetic mitral valve of claim 1 , wherein the plurality of channels extend from the sides of each commis sure plate towards a center of the plate.6. The prosthetic mitral valve of claim 1 , wherein the plurality of channels are substantially straight.7. The prosthetic mitral valve of claim 1 , wherein there are between 6 and 12 channels in each commissure plate.8. The prosthetic mitral valve of claim 1 , wherein each of the slots in an axially extending strut.9. The prosthetic mitral valve of claim 1 , wherein arms of the leaflets extend through the plurality of slots.10. The prosthetic mitral valve of claim 9 , wherein the ...

ENDOLUMINAL DEVICE AND METHOD

An endoluminal device can be configured for precise positioning during deployment within a vessel. The endoluminal device can be a tack, stent, vascular implant or other type of implant. The endoluminal device can have circumferential member with an undulating configuration having multiple inward and outward apexes and struts extending therebetween. Two of the struts can be used to establish a foot for the precise positioning of the device during deployment. A method of placing the endoluminal device can include withdrawing an outer sheath such that a portion of the endoluminal device is expanded prior to the rest of the endoluminal device. 119.-. (canceled)20. A system for delivering a vascular prosthesis , the system comprising:an elongate body comprising a proximal end, a distal end, and a plurality of longitudinally fixed delivery platforms disposed adjacent the distal end, each delivery platform of the plurality of delivery platforms comprising a platform length and being separated from each adjacent delivery platform of the plurality of delivery platforms by a platform separation distance;a marker portion at the proximal end of the elongate body, the marker portion comprising a plurality of markings comprising a number of markings equal to the number of delivery platforms in the plurality of delivery platforms; wherein the sheath surrounds at least a portion of the elongate body and is moveable with respect to the elongate body, the sheath having a first position and a second position,', 'wherein when in the first position the distal end of the sheath is disposed distal to a distal end of a distalmost delivery platform of the plurality of delivery platforms such that all delivery platforms of the plurality of delivery platforms are covered by the sheath, and', 'wherein when in the second position the distal end of the sheath is disposed proximal to at least the proximal end of the distalmost delivery platform of the plurality of delivery platforms such that at ...

BARBED WIRE STENT

Disclosed herein is a stent which includes stent ring structures made up of at least one wire and at least one tubular connector through which a portion of the wire is disposed. The tubular connector includes a side wall with an aperture formed therethrough. A portion of the wire extends therethrough and acts as a barb. A method of making such a stent is also disclosed. 1. A stent for implantation into a body vessel , the stent comprising:a first wire extending from a first terminal end to a second terminal end, a body extending from the first terminal end to the second terminal end, and at least one bend in the body; anda tubular connector having a first end, a second end, a connector body between the first end and the second end, a lumen, a longitudinal axis, and a side aperture in a wall of the connector body between the first end and the second end, wherein at least one of the first end and the second end is an open end in fluid communication with the lumen;wherein a portion of the first wire is disposed in the lumen of the connector and an end of the first wire is disposed through the aperture and extends outwardly from the wall of connector, and wherein the at least one bend defines a peak of a stent ring.2. The stent of claim 1 , wherein the end of the wire disposed through the aperture comprises a barb.3. The stent of claim 1 , wherein the stent ring comprises the first wire and a second wire.4. The stent of claim 3 , wherein the stent ring comprises a plurality of tubular connectors.5. The stent of claim 1 , wherein the body comprises a first bend and a second bend claim 1 , each of the first bend and the second bend defining a peak of the stent ring.6. The stent of claim 5 , wherein the first bend has a first radius of curvature and the second bend has a second radius of curvature claim 5 , the first radius of curvature being different from the second radius of curvature.7. The stent of claim 1 , wherein the first end and the second end of the tubular ...

THIN-FILM MICROMESH COVERS FOR MEDICAL DEVICES AND RELATED METHODS

A thin-film covered stent device may include a thin-film mesh and a stent backbone covered by the thin-film mesh, thereby forming a dual-layer stent structure. The thin-film covered stent device may have smaller pores and a high pore density compared to conventional stents. For example, the thin-film covered stent device may have a slit length of between 50 and 250 micrometers and a pore density of between 134 and 227 pores per mm. The thin-film covered stent device facilitates rapid healing of tissue defects such as those encountered during the endovascular treatment of an aneurysm. 1. An apparatus comprising:a thin-film mesh having a plurality of diamond-shaped pores;{'sup': '2', 'wherein the thin-film mesh has a pore density of between 65 and 1075 pores per mmand a percent area coverage of between 16 and 66%.'}2. The apparatus of claim 1 , wherein the thin-film mesh is a three-dimensional cylindrical tube comprising Nitinol.3. The apparatus of claim 1 , wherein the thin-film mesh has a thickness of between 1 and 50 micrometers.4. The apparatus of claim 1 , wherein each slit has a length of between 50 and 250 micrometers.5. The apparatus of claim 1 , wherein the thin film mesh form struts around the diamond-shaped pores claim 1 , and wherein each strut has a width of between 1 and 25 micrometers.6. The apparatus of claim 1 , wherein the thin-film mesh has a first region and a second region claim 1 , the first region having a higher pore density than the second region.7. The apparatus of claim 1 , further comprising a stent backbone extending along a longitudinal axis claim 1 , and wherein the thin-film mesh is assembled on the stent backbone to form a thin-film covered stent.8. The apparatus of claim 7 , wherein the diamond-shaped pores have a long axis that is perpendicular to the longitudinal axis of the stent backbone.9. The apparatus of claim 7 , wherein the thin-film covered stent is a carotid stent configured to be deployment in a carotid artery claim 7 , ...

Sinus venosus atrial septal defect treatment device

The sinus venosus atrial septal defect (“ASD”) treatment device includes has a generally tubular or funnel shaped configuration. A first end of the device can have a diameter that is less than a diameter of a second end of the device. The device can be inserted in the right upper right pulmonary vein PV. The second end of the device is configured to expand in a skirt-like configuration once the device is positioned in the right upper right pulmonary vein PV. In this manner, the device closes the upper sinus venosus hole and diverts anomalous pulmonary venous drainage into the left atrium.

SPIRAL FLOW INDUCING STENT AND CANULA CUT METHOD OF MAKING SAME

A cannula cut spiral flow inducing stent includes a plurality of spiral inducing flow diverters that each include a piece of sheet metal with a helically shaped flow surface. A proximal stent region, which includes a plurality of first struts, is joined to a proximal end of each of the spiral inducing flow diverters. A distal stent region, which includes a plurality of second struts, is joined to a distal end of each of the spiral inducing flow diverters. All of the first struts and all of the second struts share a cannula thickness, but the shaped pieces of sheet metal may have a lesser thickness. 1. A spiral flow inducing stent comprising:a plurality of spiral inducing flow diverters that each include a piece of sheet metal with a helically shaped flow surface;a proximal stent region, which includes a plurality of first struts, joined to a proximal end of each of the spiral inducing flow diverters;a distal stent region, which includes a plurality of second struts, joined to a distal end of each of the spiral inducing flow diverters; andall of the first struts and all of the second struts share a cannula thickness.2. The spiral flow inducing stent of wherein each of the pieces of sheet metal has a length that is greater than a width claim 1 , and has a thickness that is less than the cannula thickness.3. The spiral flow inducing stent of wherein each of pieces of sheet metal defines an open channel extending along the length.4. The spiral flow inducing stent of wherein each of the open channels opens radially outward relative to a longitudinal axis.5. The spiral flow inducing stent of wherein each of a plurality of different pairs of the first struts are attached to a respective living hinge vertex.6. The spiral flow inducing stent of wherein each living hinge vertex is biased toward a spread configuration so that each of the proximal stent region and the distal stent region are self expanding.7. The spiral flow inducing stent of including exactly four spiral ...

Low profile non-symmetrical stent

A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition.

Bend-Capable Stent Prosthesis

A stent is described, which includes a plurality of stenting rings, each stenting ring including a plurality of struts and points of inflection, each point of inflection connecting adjacent struts, the points of inflection of adjacent stenting rings facing each other along an axis parallel to a longitudinal axis of the stent in a radially expanded stenting disposition while the stent is in an unbent configuration. Adjacent stenting rings are connected by connectors extending from a point of inflection on one stenting ring to a facing point of inflection on another stenting ring, the connectors being linear along an entire length thereof and parallel to the longitudinal axis of the stent, each of the connectors having a length shorter than a length of each of the struts. 1. A stent , comprising:a plurality of stenting rings, each stenting ring including a plurality of struts and points of inflection, each point of inflection connecting adjacent struts, the points of inflection of adjacent stenting rings facing each other along an axis parallel to a longitudinal axis of the stent in a radially expanded stenting disposition while the stent is in an unbent configuration;adjacent stenting rings connected by connectors extending from a point of inflection on one stenting ring to a facing point of inflection on another stent ring, the connectors being linear along an entire length thereof and parallel to the longitudinal axis of the stent, each of the connectors having a length shorter than a length of each of the struts;each stenting ring including connected points of inflection and unconnected points of inflection, the facing unconnected points of inflection of adjacent stenting rings axially passing by each other when the stent is transitioned from the unbent configuration to a bent configuration.2. The stent according to claim 1 , wherein the struts of each stenting ring have the same cross-section claim 1 , the length of each of the struts is greater than 1.25 mm ...

Replacement Mitral Valves

A prosthetic mitral valve includes an anchor assembly, a strut frame, and a plurality of replacement leaflets secured to the annular strut frame. The anchor assembly includes a ventricular anchor, an atrial anchor, and a central portion therebetween. The ventricular anchor and the atrial anchor are configured to flare radially outwards relative to the central portion. The annular strut frame is disposed radially within the anchor assembly and is attached to the anchor assembly. The central portion is configured to align with a native valve orifice and the ventricular anchor and the atrial anchor are configured to compress native cardiac tissue therebetween. 1. A prosthetic mitral valve having a collapsed configuration and an expanded configuration , the prosthetic mitral valve comprising:an anchor assembly comprising an atrial anchor, a ventricular portion, and a central portion therebetween, the atrial anchor flaring outward relative to the central portion in the expanded configuration, the ventricular portion including a plurality of engagement members for engaging native tissue, wherein the anchor assembly comprises a plurality of diamond-shaped cells;an annular strut frame disposed radially within the anchor assembly, the annular strut frame attached to the anchor assembly in the collapsed configuration; anda plurality of replacement leaflets secured to the annular strut frame,wherein, in the expanded configuration, a first plurality of cells of the atrial anchor has a first width and a second plurality of cells of the ventricular portion has a second width less than the first width, the first and second widths being defined in a direction of a circumference of the anchor assembly.2. The prosthetic mitral valve of claim 1 , wherein the plurality of engagement members each extend from an apex of a cell.3. The prosthetic mitral valve of claim 1 , wherein the plurality of engagement members are in the form of hooks.4. The prosthetic mitral valve of claim 1 , ...

DEVICES AND METHODS FOR ASSISTING MEDICAL TREATMENTS

An intravascular device () includes an elongated shaft () extending in an axial direction and an expandable braided arrangement () of a plurality of filaments. The braided arrangement has a proximal end, a distal end (), and an intermediate region therebetween. The intravascular device can include an endpiece (-) located proximate an intersection of the elongated shaft and the braided arrangement. The endpiece can be configured to orient the filaments in a substantially single file continuum. At a junction with the endpiece, the filaments can initially extend in a substantially parallel, non-crossing manner, and as the filaments extend toward the intermediate region, the initially extending non-crossing filaments can cross each other. 1. An intravascular device , comprising:an elongated shaft extending in an axial direction;an expandable braided arrangement of a plurality of filaments, the braided arrangement having a proximal end, a distal end, and an intermediate region therebetween; andan endpiece located proximate an intersection of the elongated shaft and the braided arrangement, the endpiece being configured to orient the filaments in a substantially single file continuum , and wherein at a junction with the endpiece, the filaments initially extend in a substantially parallel, non-crossing manner, and as the filaments extend toward the intermediate region, the initially extending non-crossing filaments cross each other,2. The intravascular device of claim 1 , wherein the endpiece contains a plurality of filament openings through which each of the filaments passes.3. The intravascular device of claim 2 , wherein an axial direction of the openings are substantially parallel to the axial direction of the elongated shaft.4. The intravascular device of claim 1 , further comprising a flexible cover surrounding the expandable braided arrangement.5. The intravascular device of claim 1 , further comprising a control member for permitting selective force application to ...

REDUCED GRANULATION AND INFLAMMATION STENT DESIGN

A stent of the present disclosure has a variable radial force along the longitudinal length of the stent. In particular, the radial force of the center is greater than the radial force of the ends of the stent. Without being bound by theory, the radial force is affected by the strut angle θ, the wall thickness t, the number of strut pairs, and combinations thereof. In one aspect of the present disclosure, the stent has a variable strut angle θ, a variable wall thickness t, and a variable number of strut pairs. By adjusting the strut angle θ, the wall thickness t, and the number of strut pairs of the serpentine bands, the stent will have a variable radial force without the need for additional processing steps. 1. A stent having a longitudinal length , a radial force that varies along the longitudinal length , and a plurality of interconnected serpentine bands , wherein each serpentine band comprises struts interconnected by proximal turns and distal turns , each serpentine band having a strut angle , a number of strut pairs , and a wall thickness , the serpentine bands comprising a first serpentine band having a first radial force and a second serpentine band having a second radial force less than the first radial force , wherein:the strut angle of the first serpentine band is less than the strut angle of the second serpentine band;the number of strut pairs of the first serpentine band is greater than the number of strut pairs of second serpentine band; andthe wall thickness of the first serpentine band is greater than the wall thickness of the second serpentine band.2. The stent of claim 1 , wherein the first serpentine band is positioned between two second serpentine bands claim 1 , each second serpentine band forming an end of the stent claim 1 , the radial force gradually decreasing from the first radial force of the first serpentine band to the second radial force of the second serpentine bands at each end of the stent.3. The stent of claim 1 , wherein the first ...

CATHETER WITH INTEGRATED EMBOLIC PROTECTION DEVICE

A prosthetic heart valve delivery catheter includes an embolic filter to provide integrated embolic protection to inhibit the release of emboli into the aorta, the aortic arch or branch vessels, and other vasculature during transvascular heart valve replacement procedures. The embolic filter will usually be fixedly or movably attached to a shaft of the delivery catheter proximal of the prosthetic heart valve. 1. A prosthetic heart valve delivery catheter having integrated embolic protection , said catheter comprising:a catheter shaft having a distal portion;a prosthetic valve disposed on the distal portion of the catheter shaft; andan embolic filter disposed on the distal portion of the shaft at a location proximal of the prosthetic valve, said embolic filter having a collapsed configuration and a deployed configuration wherein an outer periphery of the filter is configured to contact a blood vessel wall;wherein the embolic filter comprises a filter structure having a narrow end coupled to the shaft and an open end located distally of the narrow end.2. The catheter of claim 1 , wherein the narrow end of the filter structure is fixedly attached to the catheter shaft.3. The catheter of claim 1 , wherein the narrow end of the filter structure is slidably mounted on the catheter shaft.4. The catheter of claim 3 , further comprising a proximal stop on the catheter shaft for limiting proximal movement of the embolic filter on the distal portion of the catheter shaft.5. The catheter of claim 4 , further comprising a distal stop on the catheter shaft for limiting distal movement of the embolic filter on the distal portion of the catheter shaft.6. The catheter of claim 1 , wherein the filter comprises a filter membrane and a support structure.7. The catheter of claim 6 , wherein the support structure comprises a plurality of self-expanding axial struts connected at their proximal ends to the catheter shaft so as to open a distal end of the filter member to form a cone when ...

UNCAGING STENT

A stent (scaffold) or other luminal prosthesis comprising circumferential structural elements which provide high strength after deployment and allows for scaffold to uncage, and/or allow for scaffold or luminal expansion thereafter. The circumferential scaffold is typically formed from non-degradable material and will be modified to expand and/or uncage after deployment. 1. An endoluminal prosthesis comprising:a scaffold having a plurality of circumferential rings patterned from a non-degradable material, said scaffold being configured to expand from a crimped configuration to an expanded configuration, wherein attachment points on at least some adjacent circumferential rings are joined by circumferentially separable axial links;wherein at least some of the axial links comprise a first segment and a second segment, wherein the first and second segments are divided by an axially extending dividing line, are circumferentially interlocked to inhibit circumferential separation thereof while the scaffold is in the crimped configuration, and are configured to deform to circumferentially unlock when the scaffold is in the expanded configuration; andwherein the circumferential rings separate at the attachment points while each segment of the axial link remains attached to said attachment points after the segments have unlocked.2. An endoluminal prosthesis as in claim 1 , wherein the circumferentially separable axial links extend between crowns on adjacent circumferential rings.3. An endoluminal prosthesis as in claim 1 , wherein the circumferentially separable axial links extend between struts on adjacent circumferential rings.4. An endoluminal prosthesis as in claim 1 , wherein the circumferentially separable axial links extend between a crown on one circumferential rings and a struts on an adjacent circumferential rings.5. An endoluminal prosthesis as in claim 1 , wherein said at least some axial links are arranged in an axial line along the scaffold.6. An endoluminal ...

PULMONARY ARTERY IMPLANT APPARATUS AND METHODS OF USE THEREOF

The present invention relates to an implantable apparatus and methods of use thereof for treating congestive heart failure. An apparatus of this invention may be anchored by implantation of a section of the apparatus within in a branch pulmonary artery, for example the left pulmonary artery, which then positions and anchors another section, for example a device frame section of the apparatus within the main pulmonary artery. A medical device may be attached to the anchored device frame.

STENT GRAFT DELIVERY DEVICE

A stent graft delivery device includes a handle body, a distal handle, a proximal handle, a guidewire lumen, a nose cone, a rigid outer catheter, a graft push lumen, a sheath lumen, an inner sheath and a locking ring. The locking ring is switchable between an advancement position and a delivery position. The stent graft delivery device is employed in methods for endovascular delivery of stent grafts. 1a) a handle body having a proximal end and a distal end;b) a distal handle at the distal end of the handle body;c) a proximal handle about the handle body and proximal to the distal handle, the proximal handle being slidable along the handle body;d) a guidewire lumen extending through the handle body, the guidewire lumen having a distal end distal to the handle body, wherein the distal end of the lumen is arched;e) a nose cone fixed to the distal end of the guidewire lumen;f) a rigid outer catheter fixed to and extending distally from the distal end of the handle body, the rigid outer catheter having a distal end;g) a graft push lumen extending distally from the distal end of the handle body;h) a sheath lumen linked to the proximal handle and extending about the push lumen;i) an inner sheath extending about at least one of the graft push lumen and the guidewire lumen, the inner sheath extendable about an aortic prosthesis mounted about the guidewire lumen and between the distal end of the handle body and the nose cone; andj) a locking ring at the handle body, the locking ring switchable between an advancement position, wherein the guidewire lumen, the graft push lumen, and the sheath lumen are selectively locked to the proximal handle, and a delivery position, wherein the guidewire lumen and the graft push lumen are selectively locked to the handle body and the sheath lumen is locked to the proximal handle, whereby distal movement of the proximal handle relative to the handle body when the locking ring is in the advancement position distally displaces the inner sheath ...

TELESCOPING PROSTHETIC VALVE AND DELIVERY SYSTEM

An implantable device is disclosed. The device includes a two or three-piece frame assembly that is configured to be delivered in a series configuration and subsequently nested or telescoped in-situ. 1. A prosthetic valve for replacing a native valve of a patient's anatomy comprises:an anchor frame subcomponent;a valve frame subcomponent nestable within the anchor frame subcomponent; anda tissue retention feature configured to engage tissue associated with the native valve and secure the leaflet of the native valve between the valve frame subcomponent and the anchor frame subcomponent.2. The prosthetic valve of claim 1 , wherein one or more portions of the anchor frame subcomponent and the valve frame subcomponent overlap one another such that an annular space is defined between the overlapping portions of the valve frame subcomponent and the anchor frame subcomponent when the valve frame subcomponent is nested with the anchor frame subcomponent.3. The prosthetic valve of claim 2 , wherein the tissue retention feature is configured to secure the tissue associated with the native valve within the annular space.4. The prosthetic valve of claim 3 , wherein the tissue associated with the native valve includes a leaflet of the native valve.5. The prosthetic valve of claim 2 , wherein a portion of the tissue retention feature extends radially outwardly from the valve frame subcomponent into the annular space defined between the valve frame subcomponent and the anchor frame subcomponent when the valve frame subcomponent is nested with the anchor frame subcomponent.6. The prosthetic valve of claim 1 , wherein the tissue retention feature is integral with the valve frame subcomponent.7. The prosthetic valve of claim 1 , wherein the tissue retention feature is distinct from and coupled to the valve frame subcomponent.8. The prosthetic valve of claim 1 , wherein the prosthetic valve further includes a film disposed about one or more portions of the valve frame subcomponent and ...

Apparatus for securing a device in a vascular lumen

An implantable intravascular anchor for supporting a device inside a vascular lumen, the anchor comprising a first part configured to expand when extending from a catheter, and to collapse upon retraction into said catheter; a second part for supporting the device in the lumen and a third part, proximal to the first part, and configured so that, upon release from the catheter, it expands in width to engage an interior wall of the lumen and is adapted for securing the anchor against axial movement along the lumen.

Vascular flow diversion

Devices that can be delivered into a vascular system to divert flow are disclosed herein. According to some embodiments, devices are provided for treating aneurysms by diverting flow. An expandable device can comprise, for example, a plurality of connector sections and a plurality of bridge sections. Each of the connector sections may extend circumferentially about the expandable device and include a plurality of connector struts. Each of the plurality of bridge sections may be attached to and extend between two of the connector sections and comprise a plurality of parallel, non-branching, helical bridge members.

GROWTH ADAPTIVE EXPANDABLE STENT

According to various aspects and embodiments, a growth adaptive expandable stent is provided. The expandable stent includes a stent structure having a cylindrical shape that is self-expanding in a radial direction and includes a plurality of cylindrical rings disposed along a longitudinal axis of the stent structure. The stent structure is configured to exert a continuous outward radial force over time when implanted such that a diameter of the stent structure expands from a first value to a second value that is at least about 1.5 times the first value. 1. A growth adaptive expandable stent for use in a heart valve device , the expandable stent comprising:a stent structure having a cylindrical shape that is self-expanding in a radial direction, the stent structure having a proximal end portion, a distal end portion, and a central portion and comprising a plurality of cylindrical rings disposed along a longitudinal axis of the stent structure, each cylindrical ring of the plurality of cylindrical rings having a plurality of interconnected struts;the stent structure configured to exert a chronic outward radial force over time when implanted such that an outer diameter of the stent structure expands from a first value to a second value that is at least about 1.5 times the first value.2. The growth adaptive expandable stent of claim 1 , wherein the chronic outward radial force is sufficient to allow the outer diameter of the stent structure to adapt to a natural growing shape of a biological feature in which the stent structure is implanted.3. The growth adaptive expandable stent of claim 1 , wherein the chronic outward radial force decreases by up to 100% when the outer diameter expands from the first value to the second value.4. The growth adaptive expandable stent of claim 1 , wherein the first value of the outer diameter is in a range of about 4 mm to about 20 mm.5. The growth adaptive expandable stent of claim 4 , wherein the first value of the outer diameter is in ...

STENT

The disclosed stent comprises at least two support portions and at least one connecting portion which follow one another in the longitudinal direction of the stent. Each support portion has multiple openings in the wall of the tubular body and border elements which are formed by the tubular body and which surround the openings and together with said openings form support portion cells in the expanded state. Two support portions which are adjacent to each other in the longitudinal direction are connected via a connecting portion lying between said support portions, and each of the mutually facing end faces of the adjacent support portions are formed by a row of end-face cells of the respective support portion. The connecting portion comprises connecting elements which are formed by the tubular body and which connect the mutually facing end faces of the two adjacent support portions. 117-. (canceled)18. A stent for transluminal implantation into hollow organs , having a substantially tubular body which can be converted from a compressed state having a first cross-sectional diameter into an expanded state having an enlarged second cross-sectional diameter ,wherein the stent comprises at least two support sections and at least one connection section which follow one another in the longitudinal direction of the stent;wherein the support sections each have a plurality of apertures of the wall of the tubular body and bordering elements which are formed by the tubular body, which surround the apertures and which form cells of the support sections together with them in the expanded state;wherein two support sections adjacent in the longitudinal direction are connected to one another via a connection section disposed therebetween;wherein mutually facing end faces of the adjacent support sections are each formed by a row of end-face cells of the respective support section;wherein the connection section comprises one or more connection elements which are formed by the tubular ...

Constrainable Stent Graft, Delivery System and Methods of Use

A stent graft for treating an arterial aneurysm includes a ligature traversing at least a portion of struts of stents, the ligature having ends that, when linked, at least partially constrict a radial dimension of the stents. The ends of the ligature can be linked by a wire in a stent graft delivery system that threads anchor loops longitudinally spanning ends of the ligature to maintain the stent in a radially constricted position during delivery to the aneurysm. The stent graft can be implanted at the aneurysm by retracting the wire from the linked ends of the ligature and from the anchor loops, thereby releasing the associated stent from the radially constricted position. 1. A stent graft , comprising:a) a luminal graft component having a proximal open end and a distal open end;b) a plurality of stents distributed longitudinally along the luminal graft component, at least one of the stents having struts that are joined to define proximal and distal apices;c) at least one ligature, each ligature traversing at least a portion of the struts of at least one of the stents, the ligature including ends that, when linked, at least partially radially constrict each corresponding stent; andd) a pair of anchor loops at the luminal graft component that longitudinally span the ends of each associated ligature when linked to radially constrict the corresponding stent.2. The stent graft of claim 1 , wherein the ligature extends completely about a circumference of the stent when the ends are linked.3. The stent graft of claim 2 , wherein the ends of the ligature each include a ligature loop.4. The stent graft of claim 3 , wherein the ends of the ligature are arranged so that they are linked at the ligature loops when a wire extends through the ligature loops and longitudinally along the luminal graft component through each pair of anchor loops.5. The stent graft of claim 1 , wherein at least a portion of the ligatures are each circular and can be linked at diametrically opposed ...

Thin film mesh hybrid for treating vascular defects

Devices that can be delivered into a vascular system to divert flow are disclosed herein. According to some embodiments, devices are provided for treating aneurysms b diverting flow. An expandable device can comprise, for example, a plurality of strut regions and a plurality of bridge regions. Each of the strut regions may extend circumferentially about the expandable device and include a plurality of struts. Each of the plurality of bridge regions may be attached to and extend between two of the strut regions and comprise a plurality first bridges and second bridges that intersect one another and are movable relative to one another at their intersections.

GRAFT DEVICES AND RELATED SYSTEMS AND METHODS

A graft device for a mammalian patient comprises a tubular conduit and a fiber matrix surrounding the tubular conduit. The fiber matrix can comprise one or more polymers delivered by an electrospinning device. Systems and methods of creating a graft device are also provided. 1. A graft device for a mammalian patient , comprising:a tubular conduit; anda fiber matrix surrounding the tubular conduit;wherein the device is constructed and arranged as described in at least one device claim herebelow.2. The device of any device claim herein , wherein the fiber matrix comprises at least one thermoplastic co-polymer.3. The device of claim 2 , wherein the fiber matrix comprises a first material and a second different material.4. The device of claim 3 , wherein the second material comprises a softer material than the first material.5. The device of claim 4 , wherein the fiber matrix comprises relatively equal amounts of the first material and the second material.6. The device of claim 4 , wherein the second material comprises polydimethylsiloxane and a polyether-based polyurethane.7. The device of claim 4 , wherein the first material comprises aromatic methylene diphenyl isocyanate.8. The device of any device claim herein claim 4 , wherein the fiber matrix comprises a material selected from the group consisting of: polymer selected from the group consisting of: polyolefins; polyurethanes; polyvinylchlorides; polyamides; polyimides; polyacrylates; polyphenolics; polystyrene; polycaprolactone; polylactic acid; polyglycolic acid; and combinations thereof.9. The device of claim 8 , wherein the fiber matrix comprises a polymer applied to the tubular conduit when dissolved in a solvent.10. The device of claim 9 , wherein the solvent comprises a material selected from the group consisting of: hexafluoroisopropanol; acetone; methyl ethyl ketone; benzene; toluene; xylene; dimethyleformamide; dimethylacetamide; propanol; ethanol; methanol; propylene glycol; ethylene glycol; ...

STENT

A stent includes a strut formed into a cylindrical shape and extending in an axial direction. The strut includes outer peripheral portions extending around the axial and circumferential directions of the cylindrical shape. The outer peripheral portions are spaced apart from one another with gaps formed between adjacent outer peripheral portions. The strut includes a connection portion connecting the outer peripheral portions to each other in one of the gaps formed by the adjacent outer peripheral portions. The outer peripheral portions and the connection portion of the strut are integrally formed of a biodegradable polymer A portion of the strut includes a fragile portion which is snore fragile than other portions of the strut. 1. A stent comprising:a strut formed into a cylindrical shape and extending in an axial direction and possessing a circumferential direction;the strut comprising outer peripheral portions extending around the axial and circumferential directions of the cylindrical shape, the outer peripheral portions being spaced apart from one another with gaps being formed between adjacent outer peripheral portions;the strut comprising a connection portion connecting the outer peripheral portions to each other in one of the gaps formed by the adjacent outer peripheral portions;the outer peripheral portions and the connection portion of the strut being integrally formed of a biodegradable polymer; anda portion of the strut comprising a fragile portion which is ore fragile than other portions of the strut, the fragile portion including the biodegradable polymer that is the same as the biodegradable of the other portions of the strut, and the biodegradable polymer of the fragile portion itself is fragile.2. The stent according to claim 1 , wherein the fragile portion is formed in the connection portion.3. The stent according to claim 1 , wherein the strut includes a helical shape which ceaselessly continues from one end to the other end in the axial direction ...

ENDOVASCULAR IMPLANT

A plaque tack can be used for holding plaque against blood vessel walls such as in treating atherosclerotic occlusive disease. The plaque tack can be formed as a thin, annular band for holding loose plaque under a spring or other expansion force against a blood vessel wall. Focal elevating elements and/or other features, such as anchors, can be used to exert a holding force on a plaque position while minimizing the amount of material surface area in contact with the plaque or blood vessel wall and reducing the potential of friction with the endoluminal surface. This approach offers clinicians the ability to perform a minimally invasive post-angioplasty treatment and produce a stent-like result without using a stent. 149.-. (canceled)50. A catheter delivery system , comprising:a catheter shaft and a catheter sheath; a plurality of struts; and', 'a radiopaque marker that comprises a flat shape with a planar outer face tangential to a cylinder extending through an outer surface of the independent self-expanding tubular body;, 'a plurality of independent self-expanding tubular bodies located on the catheter shaft and spaced apart by a plurality of catheter shaft protrusions, each independent self-expanding tubular body of the plurality of independent self-expanding tubular bodies comprisinga proximal handle with an actuator coupled to a proximal end of the catheter sheath, wherein movement of the actuator is configured to retract the catheter sheath and uncover the plurality of independent self-expanding tubular bodies.51. The catheter delivery system of claim 50 , wherein at least a portion of claim 50 , each independent self-expanding tubular body of the plurality of independent self-expanding tubular bodies has a sloped orientation relative to a longitudinal axis of the independent self-expanding tubular body.52. The catheter delivery system of claim 50 , wherein the radiopaque marker comprises an eyelet.53. The catheter delivery system of claim 50 , each independent ...

IMPROVED IMPLANT DEVICE

The present invention concerns a self-expanding implant device comprising a proximal portion at a first longitudinal end, a distal portion at a second longitudinal opposite the first longitudinal end, and a connecting portion between the proximal portion and the distal portion, wherein the proximal portion and the distal portion each comprise a radially self-expanding structure, wherein the connecting portion comprises longitudinally oriented bendable struts, preferably at least 4 struts, more preferably 6 struts or more, which connect the self-expanding structure of the proximal portion with the self-expanding structure of the distal portion, wherein in a fully expanded state, the implant device comprises a maximum implant diameter along a direction perpendicular to the longitudinal direction and wherein the struts of the connecting portion comprise a strut length along the longitudinal direction, characterized in that the strut length is such that when the self-expanding structure of the proximal portion is in a compacted state and the self-expanding structure of the distal portion is not constrained radially, the self-expanding structure of the distal portion reaches a semi-expanded state comprising a diameter which is at least 60% of the maximum implant diameter. 114-. (canceled)1512345678. A self-expanding implant device () comprising a proximal portion () at a first longitudinal end , a distal portion () at a second longitudinal end opposite the first longitudinal end , and a connecting portion () between the proximal portion and the distal portion , wherein the proximal portion and the distal portion each comprise a radially self-expanding structure ( , ) , wherein the connecting portion comprises longitudinally oriented bendable struts () , which connect the self-expanding structure of the proximal portion with the self-expanding structure of the distal portion , wherein in a fully expanded state , the implant device comprises a maximum implant diameter (D) ...

VASCULAR AND BODILY DUCT TREATMENT DEVICES AND METHODS

Devices including, but not limited to, a self-expandable member having a proximal end portion and a main body portion. The self-expandable member is movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient. The expandable member includes a plurality of cell structures with the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member and the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member. 120-. (canceled)21. An embolic obstruction retrieval device comprising:an elongate self-expandable member having a radially expanded configuration and a radially constrained configuration, the expandable member being biased in the expanded configuration and comprising a plurality of generally longitudinal undulating elements with adjacent undulating elements of the plurality being interconnected in a manner to form a plurality of diagonally disposed cells defining a cell pattern, the expandable member having a proximal portion, an elongate central body portion, and a distal portion,wherein the cell structures in the central body portion are circumferentially disposed about a longitudinal axis of the expandable member, andwherein a longitudinal slit free of undulating elements extends lengthwise along the central body portion of the expandable member.22. The embolic obstruction retrieval device of claim 21 , wherein the slit extends along an entire length of the expandable member.23. The embolic obstruction retrieval device of claim 21 , wherein the slit extends diagonally claim 21 , the ...

STENT GRAFT HAVING EXTENDED LANDING AREA AND METHOD FOR USING THE SAME

A medical device for treating a target site within a lumen having an arcuate portion is provided. The medical device includes a first tubular portion comprising a proximal and distal end, and a second tubular portion comprising a proximal and distal end. A linking portion couples the first and second tubular portions, and an opening defined between the distal end of the first tubular portion and the proximal end of the second tubular portion. At least part of the linking portion is configured to conform to at least a portion of the arcuate portion of the lumen. Associated methods for using a medical device are also provided. 123-. (canceled)24. A medical device for treating a target site within a lumen having an arcuate portion and at least one branch lumen extending therefrom , said medical device comprising:a first tubular portion comprising a proximal end and a distal end, said first tubular portion formed of a continuous tube between the proximal and distal ends thereof, wherein the first tubular portion is self-expanding;a second tubular portion comprising a proximal end and a distal end, said second tubular portion formed of a continuous tube between the proximal and distal ends thereof, wherein the second tubular portion is self-expanding; anda resilient linking portion extending from the distal end of said first tubular portion to the proximal end of said second tubular portion thereby coupling said first and second tubular portions, the resilient linking portion consisting of a shape-memory material and comprising a preset, memorized arcuate configuration extending along, and biased towards, an arcuate axis in a relaxed state and configured to conform to at least a portion of the arcuate portion of the lumen, the resilient linking portion configured to be deflected away from the arcuate axis for delivery to the target site within a catheter and biased such that the resilient linking portion is configured to at least partially return to its preset, memorized ...

Pulmonary artery implant apparatus and methods of use thereof

The present invention relates to an implantable apparatus and methods of use thereof for treating congestive heart failure. An apparatus of this invention may be anchored by implantation of a section of the apparatus within in a branch pulmonary artery, for example the left pulmonary artery, which then positions and anchors another section, for example a device frame section of the apparatus within the main pulmonary artery. A medical device may be attached to the anchored device frame.

METHOD OF TREATING ATHEROSCLEROTIC OCCLUSIVE DISEASE

A tack device for holding plaque against blood vessel walls in treating atherosclerotic occlusive disease can be formed as a thin, annular band of durable, flexible material. The tack device may also have a plurality of barbs or anchoring points on its outer annular periphery. The annular band can have a length in the axial direction of the blood vessel walls that is about equal to or less than its diameter as installed in the blood vessel. A preferred method is to perform angioplasty with a drug eluting balloon as a first step, and if there is any dissection to the blood vessel caused by the balloon angioplasty, one or more tack devices may be installed to tack down the dissected area of the blood vessel surface, in order to avoid the need to install a stent and thereby maintain a ‘stent-free’ environment. 120.-. (canceled)21. A method of treating a blood vessel comprising:advancing a delivery catheter loaded with multiple independently deployable self-expanding tacks to a treatment area defined by a dissection in the blood vessel surface;independently deploying two or more self-expanding tacks of the multiple independently deployable self-expanding tacks from the delivery catheter at the discretion of an operator to treat the dissection in the blood vessel surface defining the treatment area, such that a vessel coverage area (C) of the deployed two or more self-expanding tacks divided by a Total Vessel Surface Area (TVS) of the treatment area has a ratio (C/TVS) of less than or equal to 60%, wherein the vessel coverage area is based on summation of an axial length measured from a distal-most end to a proximal-most end for each of the deployed two or more self-expanding tacks, and the Total Vessel Surface Area is based on a distance from a distal-most end to a proximal-most end of the treatment area defined by the dissection in the blood vessel surface.22. The method of treating a blood vessel of claim 21 , wherein deploying two or more self-expanding tacks from ...

PHOTON UPCONVERTING IMPLANTABLE MEDICAL DEVICES

An active material, suitable for implantable medical devices. The active material is a mixture, composite, or aggregate of upconverting particles and photocatalytic particles embedded in an at least infrared light conducting and gas permeable support material. The upconverting particles convert longer wavelength light into shorter wavelength light, which in turn powers the photocatalytic materials to produce cytotoxic chemicals. When embedded into an implantable medical device in a desired body location, and exposed to red or infrared light, this active material can produce cytotoxic chemicals that in turn exert a cytotoxic effect on unwanted cells, such as cancer or microbial cells, as well as perform other functions. 1. An implantable medical device comprising:at least one non-soluble active material formed from upconverting particles and photocatalytic particles embedded inside at least one different non-toxic, non-soluble biocompatible particle support material;wherein when said active material is exposed to red or infrared light, said upconverting particles emit shorter wavelength light which is subsequently absorbed by said photocatalytic particles, which in turn emit cytotoxic chemicals in response to said shorter wavelength light;wherein said device remains where originally implanted;wherein said device operates by localized destruction, relative to a location of said device, of unwanted living cells surrounding said active material, said localized destruction caused by cytotoxic chemicals emitted by said active material in response to an interaction of red or infrared light with said active material.2. The implantable medical device of claim 1 , in which particle support material conducts at least infrared light claim 1 , and is permeable to at least said cytotoxic chemicals but not permeable to either said upconverting particles or said photocatalytic particles.3. The device of claim 1 , in which said upconverting particles absorb infrared light claim 1 , ...

ENDOLUMINAL DEVICE AND METHOD

An endoluminal device can be configured for precise positioning during deployment within a vessel. The endoluminal device can be a tack, stent, vascular implant or other type of implant. The endoluminal device can have circumferential member with an undulating configuration having multiple inward and outward apexes and struts extending therebetween. Two of the struts can be used to establish a foot for the precise positioning of the device during deployment. A method of placing the endoluminal device can include withdrawing an outer sheath such that a portion of the endoluminal device is expanded prior to the rest of the endoluminal device. 1. A self-expanding endoluminal device configured for precise positioning during deployment within a vessel , the endoluminal device having a longitudinal axis extending between a distal end and a proximal end , the endoluminal device configured for radial compression and expansion comprising:a first undulating ring disposed at the distal end extending circumferentially around the longitudinal axis, the first undulating ring comprising a plurality of struts, a plurality of inward apexes and a plurality of outward apexes, wherein at least two struts connect at one of the apexes, the outward apexes being distal of the inward apexes; anda proximal portion connected to the inward apexes; a first strut of the plurality of struts extends at an angle radially outward from the longitudinal axis, the first strut connected to the compressed proximal portion;', 'a second strut and a third strut of the plurality of struts are connected to the first strut and extend parallel to the longitudinal axis, the second and third struts forming a foot and the endoluminal device comprising a plurality of such feet configured to extend parallel to the longitudinal axis when the endoluminal device is in this partially expanded position, the feet positioned circumferentially around the longitudinal axis and configured to precisely position and orientate ...