ВНУТРИСОСУДИСТЫЙ РАСШИРИТЕЛЬНЫЙ ИМПЛАНТАТ С ДЕФЛЕКТОРОМ

Изобретение относится к медицине, а именно к сосудистой хирургии. Изобретение обеспечивает снижение частоты рестеноза, в частности, с помощью действия на внутреннюю стенку артерии. Стент включает, по меньшей мере, один дефлектор потока, позволяющий отклонять направление потока в радиальном направлении в сторону артериальных стенок, что приводит к увеличению радиального градиента скорости у стенок артерии с локальным увеличением касательного напряжения на внутренней стенке артерии. Дефлектор потока обеспечен фиксирующими средствами, упирающимися в рабочем положении во внутреннюю стенку сосуда, причем указанные фиксирующие средства выполнены с возможностью предотвращения контакта дефлектора с внутренней стенкой сосуда и оказания механического действия для поддержания артериальной стенки. 2 с. и 12 з.п. ф-лы, 5 ил.

ПРОТЕЗ КРОВЕНОСНОГО СОСУДА

Протез кровеносного сосуда используется для восстановительной хирургии сосудов и обеспечивает эффективное кровоснабжение органов и тканей, целостность кровеносных сосудов которых нарушается вследствие врожденных дефектов или приобретенных нарушений, например атеросклероза, травм и других заболеваний. Сущность изобретения: трансплантат включает удлиненные средства с непрерывным каналом для подачи крови из источника крови под давлением в один или несколько приемников крови. Удлиненные средства имеют корпус, образующий первый канал для подачи крови. Корпус имеет одно или несколько отверстий и может соединяться с, по меньшей мере, одним кровеносным сосудом для подачи крови в отверстие кровеносного сосуда. Корпус имеет концевые средства впускного отверстия, которые могут соединяться с источником подачи крови под давлением, в силу чего кровь поступает в первый канал и из первого канала - в кровеносный сосуд. Поток крови и давление крови в первом канале регулируется средствами, снабженными суженным ...

Implantierbare röhrenförmige Prothese

ANTITHROMBOGENES ELASTOMER

Ballonexpandierbarer, druckbeständiger Stent mit Verschluss

Apparatus for use in coronary artery bypass surgery

The apparatus comprises a blood flow conduit 10 of T- or L-shape having a first end for insertion into and retention within a wall of a heart chamber 44 containing oxygenated blood and a second end for retention within a coronary artery 30, the conduit defining an open flow blood path during both systole and diastole. The conduit may be such as to bias forward flow of blood from the first towards the second end while not blocking reverse flow and may comprise a deflection surface for blocking flow through the conduit from impinging directly upon the coronary artery. Means may be provided in the conduit for reducing but not blocking blood flow during diastole.

ARTIFICIAL PIECE OF FABRIC

AORTATRANSPLANTAT AS WELL AS APPARATUS FOR REPAIRING AN ANEURYSM OF THE UNTERLEIBSAORTA

STENT WITH MORE STEER EXPAND-BARNESS

EXPAND-CASH IMPLANT TO THE VASCULAR ONE EMBOLISATION, AS WELL AS PROCEDURES FOR ITS PRODUCTION

DEVICE FOR BRINGING IN A MEDICAL TRANSPLANT

INTRODUCTION TOOL FOR ENDOLUMINALE PROSTHESIS WITH ENDOLUMINALER PROSTHESIS

STENT

Combination double-barreled and debranching stent grafts and methods for use

A combination double-barreled and debrancbing stent graft and methods for its use, where the stent graft comprises, a main body stent graft defining a single lumen with distal and proximal ends, a first bifurcation in the main body defining first and second lumens, the main body stent graft defines a tubular wall that is contiguous with the first and second lumens such that any fluid entering the main body stent graft must exit by entering one of the first or second lumens, (c) a second bifurcation within the first lumen defining a first leg and a second leg, (d) a third bifurcation within the first leg defining a third leg and a fourth leg, and (e) a fourth bifurcation within the second leg between about 10 mm and about 20 mm distal from the second bifurcation defining a fifth leg and a sixth leg.

Combination double-barreled and debranching stent grafts and methods for use

A combination double-barreled and debrancbing stent graft and methods for its use, where the stent graft comprises, a main body stent graft defining a single lumen with distal and proximal ends, a first bifurcation in the main body defining first and second lumens, the main body stent graft defines a tubular wall that is contiguous with the first and second lumens such that any fluid entering the main body stent graft must exit by entering one of the first or second lumens, (c) a second bifurcation within the first lumen defining a first leg and a second leg, (d) a third bifurcation within the first leg defining a third leg and a fourth leg, and (e) a fourth bifurcation within the second leg between about 10 mm and about 20 mm distal from the second bifurcation defining a fifth leg and a sixth leg.

Medical grafting methods and apparatus

INTRALUMINAL PROSTHESIS ATTACHMENT AND SYSTEMS

Systems and method implant prostheses in the body. The systems and method provide permanent attachment of the prosthesis in the body. The prosthesis can comprise, e.g., an endovascular graft, which can be deployed without damaging the native blood vessel in either an arterial or a venous system. The endovascular graft can comprise, e.g., a radially expanding vascular stent and/or a stent-graft. The graft can be placed in the vasculature, eg., to exclude or bridge an aneurysm, for example, an abdominal aortic aneurysms. The graft desirably adapts to change in aneurysm morphology and repairs the endovascular aneurysm. The fastening systems (27) and methods can be deployed through the vasculature and manipulated from outside the body, to deliver a fastener (28) to attach the graft to the vessel wall.

ENDOVASCULAR ANEURYSM REPAIR SYSTEM

Method and apparatus for implanting radially expandable prostheses (14) in t he body lumens rely on tacking or anchoring of the prostheses with separately introduced fasteners (28). The prostheses may be self-expanding or balloon expandable. After initial placement, a fastener applier system (27) is introduced within the expanded prostheses to deploy a plurality of fasteners at at least one prosthesis end, usually as each end of the prosthesis. The fasteners are usually helical fasteners which are delivered from a helical track in the fastener applier by rotation with a rotator wire. The fasteners will be applied singly, typically in circumferentially spaced-apart patterns about the interior of each end of the prosthesis.

METHOD AND APPARATUS FOR REDUCING MITRAL REGURGITATION

Apparatus (100) for reducing mitral regurgitation, by applying a force to the wall of the coronary sinus (30) so as to force the posterior leaflet (39) anteriorly and thereby reduce mitral regurgitation.

STENT WITH CONTROLLED EXPANSION

An intraluminal prosthesis composed of a self-expandable stent and a biodegradable constraining element being capable of biodegrading in vivo over a predetermined period of time to permit radial expansion of the stent. The constraining elements are applied to the stent to produce a compressed configuration. Dissolution of the constraining elements in vivo allows for expansion of the stent to an expanded configuration.

ENDOVASCULAR ANEURYSM REPAIR SYSTEM

Method and apparatus for implanting radially expandable prostheses (14) in the body lumens rely on tacking or anchoring of the prostheses with separately introduced fasteners (28). The prostheses may be self-expanding or balloon expandable. After initial placement, a fastener applier system (27) is introduced within the expanded prostheses to deploy a plurality of fasteners at at least one prosthesis end, usually as each end of the prosthesis. The fasteners are usually helical fasteners which are delivered from a helical track in the fastener applier by rotation with a rotator wire. The fasteners will be applied singly, typically in circumferentially spaced-apart patterns about the interior of each end of the prosthesis.

DEBRANCHING STENT GRAFT LIMB AND METHODS FOR USE

A debranching stent graft limb and methods for its use, where the limb comprises, a main body stent graft limb with a bifurcation defining a first and second leg, the main body stent graft limb has a distal end and a proximal end, the main body stent graft limb has a diameter at the proximal end in the range from about 14-18 mm, the first leg has a diameter ranging from about 8-12 mm, the second leg has a diameter ranging from about 6-10 mm, and the distance from the proximal end of the main body to the distal end of the first leg and the second leg is in the range from about 70-90 mm, and the diameter of the first leg is about 2 mm greater than the diameter of the second leg.

BIFURCATED MULTICAPSULE INTRALUMINAL GRAFTING SYSTEM AND METHOD

An intraluminal grafting system having a balloon catheter assembly, a capsule catheter assembly and capsule jacket assembly is used for deploying in the vessel of an animal body a bifurcated graft having a plurality of attachment systems. The deployment catheters contain an ipsilateral capsule assembly, a contralateral capsule assembly and a distal capsule assembly, wherein the attachment systems of the bifurcated graft are disposed within the three capsule assemblies. A removable sheath of the capsule jacket assembly covers the bifurcated graft and capsule assemblies to provide a smooth transition along the length of the deployment catheters. The bifurcated graft is comprised of a main tubular member and two tubular legs, having attachment systems with wall engaging members secured to the superior end of the main tubular member and the inferior ends of the tubular legs. An inflatable membrane configured on the balloon catheter is used to firmly implant the attachment systems within the ...

ENDOVASCULAR GRAFT HAVING BIFURCATION AND APPARATUS AND METHOD FOR DEPLOYING THE SAME

A major deployment device comprises a capsule catheter with a flexible elongate tubular member and a flexible capsule mounted on the distal extremity of the flexible elongate tubular member having an open end. A graft is disposed within the capsule. A balloon catheter comprises a flexible elongate tubular member with a balloon secured to its distal extremity, the flexible elongated tubular member extending through the graft and through the capsule and through the flexible elongated tubular member secured to the capsule. Retention means carried by the flexible elongated tubular member of the balloon catheter engages the graft. A control mechanism has a handle adapted to be grasped by a human hand and has first and second parts movable relative to each other. The flexible elongate tubular member of the capsule catheter is secured to the first part, flexible elongate tubular member of the balloon catheter extending through said first part and through the control mechanism. The control mechanism ...

A RADIALLY SELF-EXPANDING IMPLANTABLE INTRALUMINAL DEVICE

A radially self-expanding implantable intraluminal device (10) formed from a hollow tubular braid. The infra-luminal device may be used in a variety of medical procedures which require a passageway to be maintained in an open position or which require reinforcement, support or a bypass conduit such as in blood vessels weakened by disease. The infra-luminal device is longitudinally expanded or radially collapsed for ease of insertion into a lumen and upon alignment within the lumen, the intra-luminal device (10) radially self-expands to come into intimate contact with the inner surface of the lumen.

Implant expansion intravascular deflector.

Vascular prosthesis, designed for endoluminal implantation

The vascular prosthesis consists of a supple sleeve (79) for channelling the blood and a frame (81) which can occupy positions with two different diameters. The prosthesis can be in the shape of a single or bifurcated (70) tube, and its sleeve has an anastomosable end section (71,73) in the form of an extension or a connected section, designed to be joined to a blood vessel or a substitute vessel by suturing, The free end of the main tubular section (79) of the prosthesis has hooks (83) for vascular fixing, and its frame is made, for example, from one or more zigzag wires of a metal such as stainless steel, e.g. 0.1 - 0.5 mm in diameter, wound in a spiral. The sleeve is made, for example, from PTFE, 'Dacron' (RTM), PET, 'Mylar' (RTM), cellulose acetate, or a woven or knitted material.

APPARATUS AND METHODS FOR DELIVERY OF BRAIDED PROSTHESES

Blood vessels and other body lumens are expanded using an evertible braided prosthesis (30). The braided prosthesis (30) is delivered to the blood vessel in a radially collapsed configuration. A leading edge (40) of the braided prosthesis is then everted so that it expands as it is advanced through the blood vessel. Optionally, the prosthesis (30)can be provided with a biologically active substance in order to inhibit hyperplasia or have other desired biological effects.

Expandable stents and method for making same

The invention is directed to an expandable stent for implantation in a body lumen, such as an artery. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting members placed so as to limit longitudinal contraction during radial expansion. The individual radially expandable cylindrical elements are formed in general serpentine pattern designed to expand evenly under radial stress, and maximize the overall radial expansion ratio.

Expandable stents and method for making same

The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.

Radially expandable tubular prosthesis

A radially expandable tubular prosthesis which allows for controlled expansion in a circumferential direction following implantation while limiting expansion in a longitudinal direction. The prosthesis is particularly suited to intraluminal implantation via a catheter and is also particularly suited for percutaneous implantation in children.

Device with a prosthesis implantable in the body of a patient

The device comprises a prosthesis designed as a hollow body compressed against the action of restoring spring forces to a cross section reduced relative to an expanded use position, and held in this position by a strippable sheath. After the sheath is stripped, the prosthesis automatically expands to a cross section corresponding to the use position. The sheath, which can be a meshwork in the approximate form of crocheted material, extends over the entire length of the prosthesis and consists of at least one continuous thread and at least one drawstring. The prosthesis, held in the radially compressed position by the sheath, can be mounted displaceably on a feed wire or non-axially-displaceably on the insertion end of a probe or a catheter.

Endovascular aneurysm repair systems and methods

Systems and methods introduce a tissue fastener applier to apply tissue-piercing fasteners to a prosthesis sequentially along a path established by the directing device that, between fastener applications, is manipulated into orientation with different desired fastening sites, until a plurality of tissue-piercing fasteners are placed, one-at-a-time, in the prosthesis.

MEDICAL DEVICE SUITABLE FOR LOCATION IN A BODY LUMEN

A medical device suitable for location in a body lumen is movable between a first loaded configuration and a second loaded configuration. The device has an unloaded configuration which is intermediate the first loaded configuration and the second loaded configuration. The device can be a stent for deployment in a blood vessel.

Branch stent graft for aortic aneurysm repair

Described is a method for deploying a stent-graft in the aorta, the method including positioning a shunt to go along a portion of a brain-supplying artery (BSA) into the aorta; deploying a stent-graft in the aorta along a portion of the shunt; and removing the shunt. Also described is a removable shunt adapted for deployment along a brain-supplying artery into an aorta to supply blood to the artery during deployment of a stent-graft in the aorta, the removable shunt including a stiff segment that is stiff enough to remain at least partially open when between the aorta and the stent-graft and large enough to allow sufficient blood supply to the brain during the deployment of the stent-graft; and a mechanism for facilitating safe removal of the shunt from between the stent-graft and the aorta. Also described is a method of deploying a branch stent graft having a flaring portion in a blood vessel branching at a bifurcation from an aorta to connect to an aortic stent graft deployed in the aorta ...

Surgical access port

The present invention relates to an apparatus for use in a coronary bypass procedure at a coronary vessel on a heart wall, said apparatus comprising a conduit having first and second arms each having first and second ends, the configuration and sizes of the conduit being such that when the said first arm is inserted into said heart chamber so that its end is in blood flow communication with blood contained within said chamber, the second arm can extend exterior of the heart wall for connection with a neighbouring coronary vessel, such that its second end is in blood flow communication therewith.

Expandable stents and method for making same

Expandable stents

ENDOLUMINAL PROSTHESIS

Einführungswerkzeug für endoluminale Prothese mit endoluminaler Prothese

Innerhalb eines Körperlumens anbringbarer Stent

Aufweitbare Stents

Intraluminal prothesis attachment systems and methods

VASCULAR GRAFT AND BLOOD SUPPLY

DEVICE FOR EXECUTION A KORONAREN ARTERIENBYPASSOPERATION

INTRALUMINALES BYPASS MULTI-CAP TRANSPLANT ION SYSTEM

STENT FROM A FORMGED�CHNISLEGIERUNG

MEDICAL TRANSPLANT ION DEVICE

PROSTHESIS FOR PHYSICAL COURSES

RADIALLY SELFEXPANDING, IMPLANTIERBARE, INTRALUMINALE DEVICE

ENDOVASCULAR ANEURYSM REPAIR SYSTEM

Stent for supporting lumens in living tissue

An aortic graft for repairing an abdominal aortic aneurysm

Debranching visceral stent graft and methods for use

A debranching visceral stent graft and methods for its use, where the stent graft comprises, a main body stent graft with a bifurcation defining a first leg and a second leg, the main body stent graft has a distal end and a proximal end, the main body stent graft's diameter at the proximal end ranges from about 18-22 mm, the first leg and the second leg each have a diameter that ranges from about 14-16 mm, the distance from the proximal end of the main body to the distal end of the first leg ranges from about 70-90 mm, the distance from the proximal end of the main body to the distal end of the second leg ranges from about 80- 100 mm, and the second leg is at least about 10 mm longer than the first leg.

EXPANDABLE STENTS AND METHOD FOR MAKING SAME

The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. The stents are made by coating a length of tubing with an etchant- resistive material and then selectively removing portions of the coating to form a pattern for the stent on the tubing and to expose the portions of the tubing to be removed. This may be done by machine-controlled activation and relative positioning of a laser in conjunction with the coated tubing. After the patterning of the tubing, the stent is formed by removing exposed portions of the tubing by an etching process.

VASCULAR GRAFT AND BLOOD SUPPLY METHOD

DEBRANCHING VISCERAL STENT GRAFT AND METHODS FOR USE

A debranching visceral stent graft and methods for its use, where the stent graft comprises, a main body stent graft with a bifurcation defining a first leg and a second leg, the main body stent graft has a distal end and a proximal end, the main body stent graft's diameter at the proximal end ranges from about 18-22 mm, the first leg and the second leg each have a diameter that ranges from about 14-16 mm, the distance from the proximal end of the main body to the distal end of the first leg ranges from about 70-90 mm, the distance from the proximal end of the main body to the distal end of the second leg ranges from about 80- 100 mm, and the second leg is at least about 10 mm longer than the first leg.

DEBRANCHING GREAT VESSEL STENT GRAFT AND METHODS FOR USE

A debranching Great vessel stent graft and methods for its use, where the stent graft comprises, a main body stent graft with a first bifurcation defining a first leg and a second leg, the main body stent graft has distal and proximal ends, the main body stent graft has a diameter at the proximal end in the range from about 18 mm to about 28 mm, the first leg and the second leg each have a diameter in the range from about 12 mm to about 18 mm, the distance from the proximal end of the main body to the distal end of the first leg is in the range from about 30 mm to about 50 mm, and the distance from the proximal end of the main body to the distal end of the second leg is in a range from about 50 mm to about 70 mm.

A Radically Self-Expanding Implantable Intraluminal Device

Vascular embolization with an expansible implant

A vascular implant formed of a compressible foam material has a compressed configuration from which it is expansible into a configuration substantially conforming to the shape and size of a vascular site to be embolized. Preferably, the implant is formed of a hydrophilic, macroporous foam material, having an initial configuration of a scaled-down model of the vascular site, from which it is compressible into the compressed configuration. The implant is made by scanning the vascular site to create a digitized scan data set; using the scan data set to create a three-dimensional digitized virtual model of the vascular site; using the virtual model to create a scaled-down physical mold of the vascular site; and using the mold to create a vascular implant in the form of a scaled-down model of the vascular site. To embolize a vascular site, the implant is compressed and passed through a microcatheter, the distal end of which has been passed into a vascular site. Upon entering the vascular site ...

Rapid exchange catheter system

The invention relates to a rapid exchange catheter system comprising a exchange member having proximal and distal ends, the distal end of the rigid shaft being integral with the proximal end of the exchange member, such that said shaft is adapted to advance the exchange member distally to a desired location wherein the exchange member is positioned concentrically to a catheter shaft.

Endovascular aneurysm repair system

Method and apparatus for implanting radially expandable prostheses in the body lumens rely on tacking or anchoring of the prostheses with separately introduced fasteners. The prostheses may be self-expanding or balloon expandable. After initial placement, a fastener applier system is introduced within the expanded prostheses to deploy a plurality of fasteners at at least one prosthesis end, usually as each end of the prosthesis. The fasteners are usually helical fasteners which are delivered from a helical track in the fastener applier by rotation with a rotator wire. The fasteners will be applied singly, typically in circumferentially spaced-apart patterns about the interior of each end of the prosthesis.

Endovascular aneurysm repair system

Method and apparatus for implanting radially expandable prostheses in the body lumens rely on tacking or anchoring of the prostheses with separately introduced fasteners. The prostheses may be self-expanding or balloon expandable. After initial placement, a fastener applier system is introduced within the expanded prostheses to deploy a plurality of fasteners at least one prosthesis end, usually as each end of the prosthesis. The fasteners are usually helical fasteners which are delivered from a helical track in the fastener applier by rotation with a rotator wire. The fasteners will be applied singly, typically in circumferentially spaced-apart patterns about the interior of each end of the prosthesis.

Medical device suitable for location in a body lumen

A medical device suitable for location in a body lumen is movable between a first loaded configuration and a second loaded configuration. The device has an unloaded configuration which is intermediate the first loaded configuration and the second loaded configuration. The device can be a stent for deployment in a blood vessel.

Expandable stents and method for making same

The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.

Method for deploying an endovascular graft having bifurcation

Graft having a bifurcation for repairing an aneurysm in the vicinity of an aortic bifurcation in a patient comprising a main tubular body and first and second tubular legs joined to said main body in a bifurcation. The main body and the legs are formed of a flexible surgically implantable material. The main body and each of the first and second legs having an opening therein in communication with the other openings. Expandable spring attachments are secured to the main body adjacent the opening in the main body. An additional expandable spring attachment is secured to one of said legs adjacent the opening in said one leg.

Aortic graft and apparatus for repairing an abdominal aortic aneurysm

An aortic graft, and method and apparatus for repairing an abdominal aortic aneurysm includes a tubular graft which is intraluminally delivered through the aorta and secured to the aorta by the expansion and deformation of a thin-walled tubular member.

Drug-eluting stent cover method of use

An intravascular stent includes an eluting sheath fabricated from a mesh for controlled release of therapeutic drugs and for delivery of the therapeutic drugs in localized drug therapy in a blood vessel. The eluting sheath is attached to at least a portion of an outside surface area of the stent structure and is fabricated from a mesh designed to neck down in response to a radially outward directed force resulting in the uniform expansion of the stent. The eluting sheath can be loaded with at least one therapeutic drug for the release thereof at a treatment site to facilitate repair of a damaged vessel. The stent has a high degree of flexibility in the longitudinal direction, yet has adequate vessel wall coverage and radial strength sufficient to hold open an artery or other body lumen.

Method and system for attaching a graft to a blood vessel

Anastomotic stents for connecting a graft vessel to a target vessel, and methods of use thereof. The anastomotic stents of the invention are suitable for use in a variety of anastomosis procedures, including coronary artery bypass grafting. One embodiment of the invention comprises a large vessel anastomotic stent for use with large diameter target vessels such as the aorta or its major side branches. Another embodiment of the invention comprises a small vessel anastomotic stent for use on a target vessel which has a small diameter such as a coronary artery. Another aspect of the invention involves applicators for use with the stents of the invention.

Vascular embolization with an expansible implant

A vascular implant formed of a compressible foam material has a compressed configuration from which it is expansible into a configuration substantially conforming to the shape and size of a vascular site to be embolized. Preferably, the implant is formed of a hydrophilic, macroporous foam material, having an initial configuration of a scaled-down model of the vascular site, from which it is compressible into the compressed configuration. The implant is made by scanning the vascular site to create a digitized scan data set; using the scan data set to create a three-dimensional digitized virtual model of the vascular site; using the virtual model to create a scaled-down physical mold of the vascular site; and using the mold to create a vascular implant in the form of a scaled-down model of the vascular site. To embolize a vascular site, the implant is compressed and passed through a microcatheter, the distal end of which has been passed into a vascular site. Upon entering the vascular site ...

Medical grafting apparatus

Methods and apparatus for delivering and installing a new length of tubing between two sections of a patient's existing body organ tubing and at least partly outside of that existing structure. For example, the new length of tubing may be for the purpose of providing the patient with a coronary bypass. The new tubing may be an artificial graft, a natural graft (harvested elsewhere from the patient), or both. The new tubing is delivered to and installed at the operative site primarily by working through the patient's existing tubular body organ structure. This avoids the need for any significant surgery on the patient. The artificial grafts may have shapes other than tubular. Certain procedural and apparatus aspects of the invention have uses other than in connection with grafting in general or tubular grafting in particular.

STENT WITH LONGITUDINAL GROOVE

Vascular prosthesis

INTRAVASCULAR GRAFT WITH BRANCH AND DEVICE AND METHOD TO DEVELOP THE GRAFT

PURPOSE: To make a graft be quickly developed and placed easier to enable to be fixed across the bifurcation of aorta, by equipping openings on the main body made of a flexible transplantable material and each leg and fixing an expandable spring attaching means in a place neighboring the opening of the main body and a spring attaching means in a place neighboring the opening of one leg. CONSTITUTION: A main cylindrical body 112 with an open end part 113 of an intravascular graft 20 with a bifurcation has a bifurcation 114 on the other end, the lower end opens in legs 116, 117, and legs 116, 117 have open ends 118, 119 on the side opposite to the open end 113. An expandable spring attaching means 156 is fixed neighboring the opening 113 of the expandable main body, and an expandable spring attaching means 127 is fixed neighboring the opening 118 of the leg 116. The expandable spring attaching means 126 energizes the opening 113 of the main body 112 from the initial compressed state to an ...

Gefässprothese

Gefäßimplantate

Stent

VORRICHTUNG ZUM IMPLANTIEREN UND METHODE ZUM KOLLABIEREN DERSELBEN

Intraluminal prosthesis attachment systems and methods

VASCULAR GRAFT AND BLOOD SUPPLY METHOD

CONTAINER PLUG AND BLOOD SUPPLY PROCEDURE.

BIFURKATIONS STENT MAKE

INTRAVASKULÄRER STENT WITH A DEFLECTOR

Endovascular aneurysm repair system

Endovascular aneurysm repair system

Visceral double-barreled main body stent graft and methods for use

A visceral double-barreled main body stent graft and methods for its use, the stent graft comprises, a main body stent graft having distal and proximal ends, the main body stent graft's length ranges from about 100-120 mm and diameter at the proximal end ranges from about 30-45 mm, first and second lumens defined at the main body stent graft's distal end, the first lumen's diameter ranges from about 18-20 mm, the second lumen's diameter ranges from about 16-18 mm, the first and second lumens have about the same length from about 50-70 mm, the first lumen is secured to the second lumen along a shared length, and the main body stent graft defines a tubular wall that is contiguous with the first and second lumens such that any fluid entering the main body must exit through one of the first or second lumens.

An expandable intraluminal vascular graft

A radially self-expanding implantable intraluminal device

Bifurcated endoluminal prosthesis

METHODS FOR ENGRAFTING A CORPOREAL LUMEN, FOR IMPLANTING A GRAFT, FOR ENGRAFTING A PROSTHESIS INTO A CORPOREAL LUMEN AND AN EXPANDABLE GRAFT

STAGED DEPLOYMENT ENDOGRAFT

An apparatus is provided for deploying an endograft (103) that maintains a fluid channel (20) throughout deployment. A method for deploying an endograft maintaining a fluid channel through the deployment is also provided.

BIFURCATED ENDOLUMINAL PROSTHESIS

BIFURCATED ENDOLUMINAL PROSTHESIS

An introducer for delivering into the vasculature a straight or bifurcated stent or prosthesis; a method for delivering into the vasculature a straight or bifurcated stent or prosthesis; a method of treating and angeological disease using a bifurcated stent; an endoluminal stent having perpendicular hoop members, each hoop member formed of wire in a sinuous configuration, at least some of juxtaposed apices in neighboring hoops being secured to one another, such stents also forming axially aligned segments in straight stents, and segments of bifurcated stents in particular embodiments. Certain embodiments of such stents also include barbs, fabric covering and radiopaque markers.

DEBRANCHING GREAT VESSEL STENT GRAFT AND METHODS FOR USE

A debranching Great vessel stent graft and methods for its use, where the stent graft comprises, a main body stent graft with a first bifurcation defining a first leg and a second leg, the main body stent graft has distal and proximal ends, the main body stent graft has a diameter at the proximal end in the range from about 18 mm to about 28 mm, the first leg and the second leg each have a diameter in the range from about 12 mm to about 18 mm, the distance from the proximal end of the main body to the distal end of the first leg is in the range from about 30 mm to about 50 mm, and the distance from the proximal end of the main body to the distal end of the second leg is in a range from about 50 mm to about 70 mm.

COMBINATION DOUBLE-BARRELED AND DEBRANCHING STENT GRAFTS AND METHODS FOR USE

A combination double-barreled and debrancbing stent graft and methods for its use, where the stent graft comprises, a main body stent graft defining a single lumen with distal and proximal ends, a first bifurcation in the main body defining first and second lumens, the main body stent graft defines a tubular wall that is contiguous with the first and second lumens such that any fluid entering the main body stent graft must exit by entering one of the first or second lumens, (c) a second bifurcation within the first lumen defining a first leg and a second leg, (d) a third bifurcation within the first leg defining a third leg and a fourth leg, and (e) a fourth bifurcation within the second leg between about 10 mm and about 20 mm distal from the second bifurcation defining a fifth leg and a sixth leg.

EXPANDABLE STENT HAVING A STABILIZED PORTION

An expandable stent having a covering which exhibits the characteristic of being normally dissolvable in blood, but upon being activated, becomes inert to blood. The stent may be placed across the neck of an aneurysm to seal the aneurysm and thereafter the portion of the covering of the stent across the neck of the aneurysm is activated to become inert to blood and the balance of the covering dissolves to permit blood to flow to adjacent vessels.

PERMANENT SHAPE MEMORY ALLOY STENT

A permanent tissue supporting device, and a method for supporting tissue, wherein a stent-like member comprising a shape-memory alloy is permanently positioned to support the tissue of a tubular organ of a living body. The shape-memory alloy of the positioned stent-like member is in the martensitic state and exhibits a strain on a horizontal plateau of a stress-strain curve of the shape-memory alloy when permanently positioned in the tubular organ.

METHOD AND APPARATUS FOR PERFORMING CORONARY ARTERY BYPASS SURGERY

A method and apparatus for performing coronary artery bypass surgery establishes a channel leading directly from a chamber of a heart into a coronary artery with said channel retained open during both diastole and systole. The coronary artery bypass procedure may be performed with or without cardiopulmonary bypass.

STENT WITH CONTROLLED EXPANSION

An intraluminal prosthesis composed of a self-expandable stent and a biodegradable constraining element being capable of biodegrading in vivo over a predetermined period of time to permit radial expansion of the stent. The constraining elements are applied to the stent to produce a compressed configuration. Dissolution of the constraining elements in vivo allows for expansion of the stent to an expanded configuration.

APPARATUS AND METHODS FOR DELIVERY OF BRAIDED PROSTHESES

Blood vessels and other body lumens are expanded using an evertible braided prosthesis. The braided prosthesis is delivered to the blood vessel in a radially collapsed configuration. A leading edge of the braided prosthesis is then everted so that it expands as it is advanced through the blood vessel. Optionally, the prosthesis can be provided with a biologically active substance in order to inhibit hyperplasia or have other desired biological effects.

Endovascular aneurysm repair system

Method and apparatus for implanting radially expandable prostheses in the body lumens rely on tacking or anchoring of the prostheses with separately introduced fasteners. The prostheses may be self-expanding or balloon expandable. After initial placement, a fastener applier system is introduced within the expanded prostheses to deploy a plurality of fasteners at least one prosthesis end, usually as each end of the prosthesis. The fasteners are usually helical fasteners which are delivered from a helical track in the fastener applier by rotation with a rotator wire. The fasteners will be applied singly, typically in circumferentially spaced-apart patterns about the interior of each end of the prosthesis.

MEDICAL DEVICE SUITABLE FOR LOCATION IN A BODY LUMEN

A medical device suitable for location in a body lumen is movable between a first loaded configuration and a second loaded configuration. The device has an unloaded configuration which is intermediate the first loaded configuration and the second loaded configuration. The device can be a stent for deployment in a blood vessel. 1. A method of stenting a body lumen , comprising:deploying and expanding a stent in a body lumen, the stent having a diameter, the body lumen being deformable between an unloaded state and a loaded state;wherein the stent is one which, after deployment and expansion, is deformable between a first loaded configuration and a second loaded configuration and has an unloaded configuration intermediate the first loaded configuration and the second loaded configuration;wherein in said unloaded and second loaded configurations at least part of the longitudinal axis of the stent is substantially helically shaped and has an amplitude and wherein in the second loaded configuration the amplitude of the helical longitudinal axis divided by the diameter of the stent is greater than in the unloaded configuration;and wherein the deploying comprises deploying the stent in the body lumen so that when the body lumen is in the unloaded state the stent is in the first loaded configuration, and when the body lumen is in the loaded state the stent is in the second loaded configuration.2. A method as claimed in claim 1 , wherein the pitch of the helical longitudinal axis is less in the second loaded configuration than in the unloaded configuration.3. A method as claimed in claim 1 , wherein in the first loaded configuration at least part of the longitudinal axis of the stent is substantially helically shaped and the amplitude of the helical longitudinal axis divided by the diameter of the stent is less than in the unloaded configuration.4. A method as claimed in claim 3 , wherein the pitch of the helical longitudinal axis is greater in the first loaded configuration ...

BALLOON CATHETER FOR MULTIPLE ADJUSTABLE STENT DEPLOYMENT

A catheter configured to carry one or more stents and having an inflatable balloon for expanding a stent surrounding the balloon. The catheter is characterized in having a positioner for moving the one or more stents relative to the balloon from a first position in which the stent does not surround the balloon to a second position in which the stent surrounds the balloon. Also disclosed is a method for deploying a stent at a desired location in the vascular system. 1. A stent delivery system , comprising:a catheter having a distal end;an inflatable balloon near the distal end for expanding a stent surrounding the balloon;a plurality of stents carried upon the catheter;a separating mechanism carried upon the catheter, wherein a stent to be expanded is separated from an undeployed adjacent stent via the separating mechanism; anda positioner which is longitudinally slidable along the catheter independently of the plurality of stents such that the positioner is configured to move the plurality of stents relative to the balloon from a first position to a second position in proximity to the distal end so that at least one of the plurality of stents surrounds the balloon.2. The system of wherein the separating mechanism is non-releasable from the distal end of the catheter3. The system of wherein the stents are adapted to be deployed in a blood vessel in any order.4. The system of wherein the positioner comprises a sliding element configured to slide longitudinally along the catheter and push the plurality of stents distally along the catheter so as to move a stent adjacent to the balloon into a position in which it surrounds the balloon.5. The system of wherein the sliding element is attached to a wire extending longitudinally along the length of the catheter and the sliding element slides along the catheter in response to a longitudinal movement of the wire.6. A stent delivery system claim 4 , comprising:a catheter having a distal end;an inflatable balloon near the ...

Artificial graft and implantation method

An intraluminal grafting system includes a hollow graft which has a proximal staple positioned proximate its proximal end and a distal staple adapted proximate its distal end. The system includes a capsule for transporting the graft through the lumen and for positioning the proximal end of the graft upstream in a lumen which may be a blood vessel or artery. A tube is connected to the capsule and extends to exterior the vessel for manipulation by the user. A catheter is positioned within the tube to extend from the cavity and through the graft to exterior the body. The catheter has an inflatable membrane or balloon proximate the distal end thereof which is in communication via a channel with inflation and deflation means located exterior the vessel. With the inflatable membrane deflated, the capsule is positioned in the lumen and manipulated to a desired location. The inflatable membrane is manipulated by the rod away from the graft. The force exerted by the inflatable membrane and the structure of the staples urges the staples in the vessel wall, retaining the graft in position. The remainder of the intraluminal grafting system is then removed from the corporeal vessel.

Artificial graft and implantation method

An intraluminal grafting system includes a hollow graft which has a proximal staple positioned proximate its proximal end and a distal staple adapted proximate its distal end. The system includes a capsule for transporting the graft through the lumen and for positioning the proximal end of the graft upstream in a lumen which may be a blood vessel or artery. A tube is connected to the capsule and extends to exterior the vessel for manipulation by the user. A catheter is positioned within the tube to extend from the cavity and through the graft to exterior the body. The catheter has an inflatable membrane or balloon proximate the distal end thereof which is in communication via a channel with inflation and deflation means located exterior the vessel. With the inflatable membrane deflated, the capsule is positioned in the lumen and manipulated to a desired location. The inflatable membrane is manipulated by the rod away from the graft. The force exerted by the inflatable membrane and the structure of the staples urges the staples in the vessel wall, retaining the graft in position. The remainder of the intraluminal grafting system is then removed from the corporeal vessel.

Assessment of aortic heart valve to facilitate repair or replacement

Devices and methods for assessing the size, shape, and topography of vessel lumens and hollow portions of organs are described. The devices and methods are particularly adapted for determining the size, shape, topography, and compliance of the native heart valves to facilitate the later implantation of a prosthetic heart valve. The devices are typically catheter-based having an assessment mechanism fixed to a distal end of the catheter. The assessment mechanism generally includes an expandable member, such as a balloon. The assessment mechanism may also include an imaging member, a physical assessment member, an electronic mapping construction, an alignment mechanism, a valvuloplasty balloon, or any combinations thereof. The methods typically comprise deploying the balloon percutaneously to a target location, expanding the balloon, and determining one or more physical parameters associated with the target location.

Methods of assessing inner surfaces of body lumens or organs

Devices and methods for assessing the size, shape, and topography of vessel lumens and hollow portions of organs are described. The devices and methods are particularly adapted for determining the size, shape, topography, and compliance of the native heart valves to facilitate the later implantation of a prosthetic heart valve. The devices are typically catheter-based having an assessment mechanism fixed to a distal end of the catheter. The assessment mechanism generally includes an expandable member, such as a balloon. The assessment mechanism may also include an imaging member, a physical assessment member, an electronic mapping construction, an alignment mechanism, a valvuloplasty balloon, or any combinations thereof. The methods typically comprise deploying the balloon percutaneously to a target location, expanding the balloon, and determining one or more physical parameters associated with the target location.

System and method for implanting an expandable medical device into a body

A system and method are disclosed for implanting a medical device (12) into a body. The medical device (12) has an expanded state and a collapsed state and is inserted into the body while in the collapsed state. The medical device (12) is positioned proximate a desired implant site (14) in the body, and the medical device (12) is expanded to the expanded state by filling the medical device (12) with a hardenable fluid (18). The hardenable fluid (18) is then hardened such that the medical device (12) is set in the expanded state at the desired implant site (14).

Debranching visceral stent graft and methods for use

제1 레그(leg) 및 제2 레그를 한정하는 분기점을 갖는 본체 스텐트 그래프트를 포함하는 탈분지 내장 스텐트 그래프트로서, 본체 스텐트 그래프트가 원위 단부 및 근위 단부를 갖고, 본체 스텐트 그래프트의 근위 단부에서의 직경이 약 18 mm 내지 약 22 mm 범위이고, 제1 레그 및 제2 레그 각각의 직경이 약 14 mm 내지 약 16 mm 범위이고, 본체의 근위 단부로부터 제1 레그의 원위 단부까지의 거리가 약 70 mm 내지 약 90 mm 범위이고, 본체의 근위 단부로부터 제2 레그의 원위 단부까지의 거리가 약 80 mm 내지 약 100 mm 범위이고, 제2 레그가 제1 레그보다 적어도 약 10 mm 긴, 탈분지 내장 스텐트 그래프트 및 이의 사용방법. A debranched visceral stent graft comprising a body stent graft having branching points defining a first leg and a second leg, wherein the body stent graft has a distal end and a proximal end and a diameter at the proximal end of the body stent graft. It ranges from about 18 mm to about 22 mm, the diameter of each of the first and second legs ranges from about 14 mm to about 16 mm, and the distance from the proximal end of the body to the distal end of the first leg is about 70 mm. To about 90 mm, with a distance from the proximal end of the body to the distal end of the second leg ranging from about 80 mm to about 100 mm, wherein the second leg is at least about 10 mm longer than the first leg. Grafts and how to use them.

탈분지 내장 스텐트 그래프트 및 이의 사용방법

제1 레그(leg) 및 제2 레그를 한정하는 분기점을 갖는 본체 스텐트 그래프트를 포함하는 탈분지 내장 스텐트 그래프트로서, 본체 스텐트 그래프트가 원위 단부 및 근위 단부를 갖고, 본체 스텐트 그래프트의 근위 단부에서의 직경이 약 18 mm 내지 약 22 mm 범위이고, 제1 레그 및 제2 레그 각각의 직경이 약 14 mm 내지 약 16 mm 범위이고, 본체의 근위 단부로부터 제1 레그의 원위 단부까지의 거리가 약 70 mm 내지 약 90 mm 범위이고, 본체의 근위 단부로부터 제2 레그의 원위 단부까지의 거리가 약 80 mm 내지 약 100 mm 범위이고, 제2 레그가 제1 레그보다 적어도 약 10 mm 긴, 탈분지 내장 스텐트 그래프트 및 이의 사용방법.

内脏双管式主体支架移植物以及使用方法

一种内脏双管式主体支架移植物以及它的使用方法，所述支架移植物包括，具有远端和近端的主体支架移植物，所述主体支架移植物的长度范围是约100‑120mm并且在所述近端处的直径范围是约30‑45mm，第一管腔和第二管腔限定在所述主体支架移植物的所述远端处，所述第一管腔的直径范围是约18‑20mm，所述第二管腔的直径范围是约16‑18mm，所述第一管腔和所述第二管腔具有约50‑70mm的相同长度，所述第一管腔沿着共同的长度固定至所述第二管腔，并且所述主体支架移植物限定管状壁，其邻接于所述第一管腔和所述第二管腔使得进入主体的任何流体必须通过所述第一管腔或所述第二管腔之一离开。

Visceral-sided twin-tube main body stent graft and method of use

Expandable stents and method for making same

The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. The stents are made by coating a length of tubing with an etchant-resistive material and then selectively removing portions of the coating to form a pattern for the stent on the tubing and to expose the portions of the tubing to be removed. This may be done by machine-controlled activation and relative positioning of a laser in conjunction with the coated tubing. After the patterning of the tubing, the stent is formed by removing exposed portions of the tubing by an etching process.

System for applying a fastener to a prosthesis

System zum Applizieren eines Befestigungsmittels an einer Prothese innerhalb eines Körpers mit einem Befestigungsmittel, welches einen Körper aufweist, der ein distales Ende für ein Eindringen in Gewebe in Abhängigkeit von einer Kraft sowie ein proximales Ende aufweist, einem Antriebsmechanismus, der für ein lösbares Koppeln mit dem proximalen Ende des Befestigungsmittel-Körpers zur Applikation einer Kraft bemessen und konfiguriert ist, und einem Aktuator für den Antriebsmechanismus, der einen sensierenden Mechanismus aufweist, welcher einen Betrieb des Antriebsmechanismus (i) in Abhängigkeit von einer Kraft, die sensiert wird bei oder nahe dem distalen Ende des Befestigungsmittel-Körpers, und/oder (ii) in Abhängigkeit von einem Kontakt, der mit einer Oberfläche bei oder nahe dem distalen Ende des Befestigungsmittel-Körpers sensiert wird, ermöglicht, einem Katheter-Körper, der für ein Einsetzten in eine Ziel-Körperregion bemessen und konfiguriert ist, wobei zumindest ein Bereich des Antriebsmechanismus von dem Katheter-Körper getragen wird. System for applying a fastener to a prosthesis within a body with a fastener having a body having a distal end for tissue penetration in response to a force and a proximal end, a drive mechanism sized and configured for releasably coupling to the proximal end of the fastener body for application of a force, and an actuator for the drive mechanism having a sensing mechanism which controls operation of the drive mechanism (i) in response to a force sensed at or near the distal end of the fastener body, and / or (ii) in response to a Contact sensed with a surface at or near the distal end of the fastener body allows a catheter body sized and configured for insertion into a target body region, wherein at least a portion of the drive mechanism is carried by the catheter body.

Stent prosthesis for vascular surgery, particularly in the area of the aortic arch

The invention relates to a stent prosthesis for vascular surgery for inserting into an artery, particularly for bridging a vascular enlargement in the area of the aortic arch, comprising a tubular flexible and radially expandable stent body (1), on which at least one tear-proof long thread (3, 4, 10, 11) is attached in a fixed manner at a point of attachment on the outer peripheral surface of the stent body in the front section thereof. This thread can be recognized under X-ray radiation and has a free thread length of a number of decimeters and, starting from the point of attachment, is exposed outside the stent body so that the stent body, while following the thread, implants itself into the artery and, by means of the thread, can be placed in its position inside the artery and can be subsequently fixed to the vascular wall.

Implantable tubular prosthesis

The present invention provides a soft-tissue prosthesis which is formed from a tubular textile substrate and a liner. The liner is affixed to the intraluminal surface of the tubular textile portion of the soft-tissue prosthesis to form a fluid-tight barrier on the intraluminal surface of the prosthesis. The liner is preferably formed from a polymer. Thus, the soft-tissue prosthesis formed in accordance with the present invention provides the advantages of both a textile prosthesis and a polymer prosthesis.

Endovascular aneurysm repair method

A method for repairing a diseased or damaged section of an aorta (i) introduces an intraluminal directing device from a remote access site to a location within a prosthesis at a target site in an aorta where the diseased or damaged section exists, the intraluminal directing device including a deflectable distal region; (ii) establishes a path to a desired fastening site on the prosthesis by manipulating the intraluminal directing device within the prosthesis to orient the distal region with respect to the desired fastening site; (iii) introduces from an intraluminal fastener applier, that is introduced along the path established in (ii), at least one tissue-piercing fastener into tissue at the desired fastening site to anchor the prosthesis; (iv) establishes a path to a different desired fastening site on the prosthesis by manipulating the intraluminal directing device within the prosthesis to orient the distal region with respect to the different desired fastening site; (v) introduces from an intraluminal fastener applier, that is introduced through the path established in (iv), at least one tissue-piercing fastener into tissue at the different desired fastening site to further anchor the prosthesis; and (vi) repeats (iv) and (v) until a desired plurality of tissue-piercing fasteners are introduced into tissue to anchor the prosthesis.

Device with a prosthesis implantable in the body of a patient

The device comprises a prosthesis designed as a hollow body compressed against the action of restoring spring forces to a cross section reduced relative to an expanded use position, and held in this position by a strippable sheath. After the sheath is stripped, the prosthesis automatically expands to a cross section corresponding to the use position. The sheath, which can be a meshwork in the approximate form of crocheted material, extends over the entire length of the prosthesis and consists of at least one continuous thread and at least one drawstring. The prosthesis, held in the radially compressed position by the sheath, can be mounted displaceably on a feed wire or non-axially-displaceably on the insertion end of a probe or a catheter.

Appliance to be implanted, method of collapsing the appliance to be implanted and method of using the appliance to be implanted

The artificial blood vessel A comprises a front end wire ring 10 1 , a rear end wire ring 10 2 arranged facing to the front end wire ring 10 1 , a tubular cover 7 which connects the end wire rings 10 1 , 10 2 , and a plurality of intermediate wire rings 12 arranged spaced apart from each other between the front end wire ring 10 1 and the rear end wire ring 10 2 . Each of the front end wire ring 10 1 , the rear end wire ring 10 2 and the intermediate wire rings 12 are given flexibly foldable elasticity. The circumference of the front end wire ring 10 1 is equally divided into four by dividing points 41 1 , 42 1 , 43 1 , 44 1 . Hooking means 13 are formed for a front pull string to be passed through at the dividing points 41 1 , 43 1 . The circumference of the intermediate wire ring 12 is fixed to the tubular cover 7 by suturing or with adhesive at the positions 51 3 , 52 3 , 53 3 , 54 3 which correspond to the midpoint 51 1 between the dividing points 41 1 , 42 1 , the midpoint 51 1 between the dividing points 42 1 , 43 1 , the midpoint 53 1 between the dividing points 43 1 , 44 1 , and the midpoint 54 1 between the dividing points 44 1 , 41 1 .

Endovascular aneurysm repair system

Method and apparatus for implanting radially expandable prostheses in the body lumens rely on tacking or anchoring of the prostheses with separately introduced fasteners. The prostheses may be self-expanding or balloon expandable. After initial placement, a fastener applier system is introduced within the expanded prostheses to deploy a plurality of fasteners at least one prosthesis end, usually as each end of the prosthesis. The fasteners are usually helical fasteners which are delivered from a helical track in the fastener applier by rotation with a rotator wire. The fasteners will be applied singly, typically in circumferentially spaced-apart patterns about the interior of each end of the prosthesis.

Endovascular aneurysm repair system

Method and apparatus for implanting radially expandable prostheses in the body lumens rely on tacking or anchoring of the prostheses with separately introduced fasteners. The prostheses may be self-expanding or balloon expandable. After initial placement, a fastener applier system is introduced within the expanded prostheses to deploy a plurality of fasteners at least one prosthesis end, usually as each end of the prosthesis. The fasteners are usually helical fasteners which are delivered from a helical track in the fastener applier by rotation with a rotator wire. The fasteners will be applied singly, typically in circumferentially spaced-apart patterns about the interior of each end of the prosthesis.

Endovascular aneurysm repair system

Method and apparatus for implanting radially expandable prostheses in the body lumens rely on tacking or anchoring of the prostheses with separately introduced fasteners. The prostheses may be self-expanding or balloon expandable. After initial placement, a fastener applier system is introduced within the expanded prostheses to deploy a plurality of fasteners at least one prosthesis end, usually as each end of the prosthesis. The fasteners are usually helical fasteners which are delivered from a helical track in the fastener applier by rotation with a rotator wire. The fasteners will be applied singly, typically in circumferentially spaced-apart patterns about the interior of each end of the prosthesis.

Staged deployment endograft

An apparatus is provided for deploying an endograft that maintains a fluid channel throughout deployment. A method for deploying an endograft maintaining a fluid channel through the deployment is also provided.

Stent/graft device and method for open surgical placement

A method and a stent/graft device for intraoperative repair of a damaged portion of a body vessel. The stent/graft device has a length at least as long as the length of the damaged portion of the vessel undergoing repair, and is positioned within the vessel such that the device at least spans the length of the damaged vessel portion. The stent/graft device is securely engaged with the vessel at the site of the damage in a manner such that migration of the device in said vessel is inhibited.

Staged deployment endograft

An apparatus is provided for deploying an endograft that maintains a fluid channel throughout deployment. A method for deploying an endograft maintaining a fluid channel through the deployment is also provided.

Staged deployment endograft

An apparatus is provided for deploying an endograft that maintains a fluid channel throughout deployment. A method for deploying an endograft maintaining a fluid channel through the deployment is also provided.

Staged deployment endograft

An apparatus is provided for deploying an endograft that maintains a fluid channel throughout deployment. A method for deploying an endograft maintaining a fluid channel through the deployment is also provided.

Stent/graft device and method for open surgical placement

A method and a stent/graft device for intraoperative repair of a damaged portion of a body vessel. The stent/graft device has a length at least as long as the length of the damaged portion of the vessel undergoing repair, and is positioned within the vessel such that the device at least spans the length of the damaged vessel portion. The stent/graft device is securely engaged with the vessel at the site of the damage in a manner such that migration of the device in said vessel is inhibited.

Stent/graft device for open surgical placement

An assembly for open surgical repair of a damaged wall portion of a body vessel includes a stent/graft device comprising an elongated stent body and a graft material covering the stent body. The device is expandable from a compressed condition having a diameter less than a diameter of the vessel to an expanded condition at least as great as the diameter of the vessel. A sheath enclosing the device when in the compressed condition includes a sheath body and a pull string for selectively splitting the sheath body to allow expansion of the device. The device and enclosing sheath are sized for insertion through the damaged wall portion into the vessel, wherein the pull string is extendable through the damaged wall portion for splitting the sheath body.

Bifurcated endoluminal prosthesis

An introducer for delivering into the vasculature a straight or bifurcated stent or prosthesis; a method for delivering into the vasculature a straight or bifurcated stent or prosthesis; a method of treating and angeological disease using a bifurcated stent; an endoluminal stent having perpendicular hoop members, each hoop member formed of wire in a sinuous configuration, at least some of juxtaposed apices in neighboring hoops being secured to one another, such stents also forming axially aligned segments in straight stents, and segments of bifurcated stents in particular embodiments. Certain embodiments of such stents also include barbs, fabric covering and radiopaque markers.

Debranching great vessel stent graft and methods for use

一种脱支大血管支架移植物以及它的使用方法，其中，所述支架移植物包括，具有限定第一分支和第二分支的第一分叉的主体支架移植物，所述主体支架移植物具有远端和近端，所述主体支架移植物在所述近端处的直径范围是约18mm至约28mm，所述第一分支和所述第二分支各自具有约12mm至约18mm范围的直径，所述主体的所述近端至所述第一分支的所述远端的距离范围是约30mm至约50mm，并且所述主体的所述近端至所述第二分支的所述远端的距离范围是约50mm至约70mm。

Expandable stent and method of manufacturing the same

Biocompatible material

与蛋白质及血球等生物体成分的相互作用小等的生物相容性优异的生物相容性材料。所述生物相容性材料含有使单体组合物聚合而成的聚合物，所述单体组合物以重量比1/99～100/1(氨基酸型甜菜碱单体/聚合性单体)含有式(I)所示的氨基酸型甜菜碱单体和式(II)所示的聚合性单体。所述生物相容性材料可以用于食品、食品添加剂、医药品、医药部外品、医疗用具、化妆品、化妆用具商品等中。[化1] (式中，R 1 表示氢原子或甲基，R 2 表示碳原子数为1～6的亚烷基，R 3 和R 4 各自独立、表示碳原子数为1～4的烷基，R 5 表示碳原子数为1～4的亚烷基，Z表示氧原子或-NH基)、[化2] (式中，R 1 与上述相同。R 6 表示1价的有机基)。

Anti-stenotic method and product for occluded and partially occluded arteries

Methods of artificially lining a vessel, especially an artery, of a medical patient to address the existence of a flow-inhibiting atheroma and to significantly alleviate the probability of restenosis, and the resulting products.

Anti-stenotic method and product for occluded and partially occluded arteries

Methods of artificially lining a vessel, especially an artery, of a medical patient to address the existence of a flow-inhibiting atheroma and to significantly alleviate the probability of restenosis, and the resulting products.

Method of restoring reduced or absent blood flow capacity

Methods of artificially lining a vessel, especially an artery, of a medical patient to address the existence of a flow-inhibiting atheroma and to significantly alleviate the probability of restenosis, and the resulting products.

Method for increasing blood flow in vessels

A method of restoring lost blood flow capacity to an artery is disclosed. The artery is enlarged by enlarging the flow path of a plaque-ridden segment of the artery using a plaque-removing instrument. The instrument is introduced through a small arteriotomy located remote from the segment. Next, a vascular lining is inserted through the small arteriotomy to a position co-extensive with the segment where the lining is secured.

Anti-stenotic method for occluded and partially occluded arteries

Methods of artificially lining a vessel, especially an artery, of a medical patient to address the existence of a flow-inhibiting atheroma and to significantly alleviate the probability of restenosis, and the resulting products.

Anti-stenotic method and product for occluded and partially occluded arteries

Methods of artificially lining a vessel, especially an artery, of a medical patient to address the existence of a flow-inhibiting atheroma and to significantly alleviate the probability of restenosis, and the resulting products.

Anti-stenotic method and product for occluded and partially occluded arteries

Methods of artificially lining a vessel, especially an artery, of a medical patient to address the existence of a flow-inhibiting atheroma and to significantly alleviate the probability of restenosis, and the resulting products.

Anti-stenotic method and product for occluded and partially occluded arteries

Methods of artificially lining a vessel, especially an artery, of a medical patient to address the existence of a flow-inhibiting atheroma and to significantly alleviate the probability of restenosis, and the resulting products.

Debranching great vessel stent graft and methods for use

제1 레그(leg) 및 제2 레그를 한정하는 제1 분기점을 갖는 본체 스텐트 그래프트를 포함하는 탈분지 대혈관 스텐트 그래프트로서, 본체 스텐트 그래프트가 원위 단부 및 근위 단부를 갖고, 본체 스텐트 그래프트의 근위 단부에서의 직경이 약 18mm 내지 약 28 mm 범위이고, 제1 레그 및 제2 레그 각각의 직경이 약 12 내지 약 18 mm 범위이고, 본체의 근위 단부로부터 제1 레그의 원위 단부까지의 거리가 약 30 mm 내지 약 50 mm 범위이고, 본체의 근위 단부로부터 제2 레그의 원위 단부까지의 거리가 약 50 mm 내지 약 70 mm 범위인, 탈분지 대혈관 스텐트 그래프트 및 이의 사용방법. A debranched large vessel stent graft comprising a body stent graft having a first branch defining a first leg and a second leg, the body stent graft having a distal end and a proximal end, and a proximal end of the body stent graft The diameter at is in the range of about 18 mm to about 28 mm, the diameter of each of the first leg and the second leg is in the range of about 12 to about 18 mm, and the distance from the proximal end of the body to the distal end of the first leg is about 30 mm to about 50 mm, the distance from the proximal end of the body to the distal end of the second leg is in the range of about 50 mm to about 70 mm, the debranched large blood vessel stent graft and method of use thereof.

Method of using expandable polymeric stent with memory

Self-restrained stent for use in a lumen of a vessel of a patient having a body with the vessel therein, comprising a substantially cylindrical member formed of a plastic material having a built-in elastic predetermined diameter and having a memory provided therein of a diameter greater than the predetermined diameter. The plastic is characterized in that it will attempt to assume the greater diameter in its memory upon occurrence of one or more of the following conditions: (a) adsorption of heat by the plastic material; (b) adsorption of a liquid by the plastic material; and (c) a change in the pH in the liquid in which the plastic member is disposed.

Drug-eluting stent cover and method of use

An intravascular stent includes an eluting sheath fabricated from a mesh for controlled release of therapeutic drugs and for delivery of the therapeutic drugs in localized drug therapy in a blood vessel. The eluting sheath is attached to at least a portion of an outside surface area of the stent structure and is fabricated from a mesh designed to neck down in response to a radially outward directed force resulting in the uniform expansion of the stent. The eluting sheath can be loaded with at least one therapeutic drug for the release thereof at a treatment site to facilitate repair of a damaged vessel. The stent has a high degree of flexibility in the longitudinal direction, yet has adequate vessel wall coverage and radial strength sufficient to hold open an artery or other body lumen.

Expandable stents

The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.

Stent capable of attachment within a body lumen

ABSTRACT An expandable, balloon-catheter-delivered intra-vascular stent, especially adapted for cardiovascular applications, having a plurality of protrusions on its outer surface for engaging the artery walls in which it is disposed. The protrusions are formed from the body of the stent in a unitary, one-piece manner. Apertures are formed in the stent body from the space vacated in the body by the material forming the protrusions. When the stent is expanded by the balloon catheter, the pro-trusions engage both the apertures and the artery walls, to lock the stent into the expanded diameter. In this way axial displacement and radial collapse of the stent is avoided. The protrusions are arranged in a plurality of shapes, sizes and patterns. The stent may be made of a bioabsorbable material and/or a therapeutic drug delivery material. Docket No. ACS 33007 (6180)

Balloon catheter device

A catheter configured to carry one or more stents and having an inflatable balloon for expanding a stent surrounding the balloon. The catheter is characterized in having a positioner for moving the one or more stents relative to the balloon from a first position in which the stent does not surround the balloon to a second position in which the stent surrounds the balloon. Also disclosed is a method for deploying a stent at a desired location in the vascular system.

Intravascular dilatation implant with a deflector

Endoluminal prosthesis having radiopaque marker

An endoluminal prosthesis (10, 40; 400; 450) that is adapted for placement within a body lumen, said prosthesis (10, 40; 400; 450) comprising radiopaque marker means (17; 17a; 120; 420) thereon, which radiopaque marker means (17; 17a; 120; 420) is configured to indicate the rotational alignment of said prosthesis (10, 40; 400; 450), or the alignment of said prosthesis (10, 40) with another prosthesis (40, 10), during placement thereof in the body lumen. Also disclosed are a method of determining the rotational alignment of an endoluminal prosthesis (10; 40; 400; 450) during placement thereof in a body lumen, and a method for determining the proper alignment of a plurality of portions (10; 40) of an endoluminal prosthesis during assembly of said endoluminal prosthesis within the vasculature of a body.

Implantable prosthesis

A graft system for intraluminal delivery in a vessel in need of repair comprising a graft (140), anchoring means (130), and a strippable sheath (150) around at least part of the graft (140). A preferred anchoring means is a balloon-expandable stent (130). Also included in the invention is a method of using the device to treat a body lumen. The strippable sheath (150) is removable by pulling on a drawstring to remove it which permits expansion of the graft. The positioning of the device may then be adjusted prior to stent (130) dilation. A preferred embodiment of the invention includes a bifurcated graft system for intraluminal delivery in an aortic aneurysm comprising a bifurcated graft having a distal region (630) and two legs (620,660), an expandable stent (130) disposed in part of the distal region, and a strippable crocheted sheath (150) around the distal region and one of the two legs (620). The strippable crocheted sheath (150) is removable by untying it to permit expansion of the graft (140) after initial placement within the aneurysm.

Endovascular graft having bifurcation and apparatus and method for deploying the same

Graft having a bifurcation for repairing an aneurysm in the vicinity of an aortic bifurcation in a patient comprising a main tubular body and first and second tubular legs joined to said main body in a bifurcation. The main body and the legs are formed of a flexible surgically implantable material. The main body and each of the first and second legs having an opening therein in communication with the other openings. Expandable spring attachments are secured to the main body adjacent the opening in the main body. An additional expandable spring attachment is secured to one of said legs adjacent the opening in said one leg.

Bifurcated multicapsule intraluminal grafting system

An intraluminal grafting system having a balloon catheter assembly, a capsule catheter assembly and capsule jacket assembly is used for deploying in the vessel of an animal body a bifurcated graft having a plurality of attachment systems. The deployment catheters contain an ipsilateral capsule assembly, a contralateral capsule assembly and a distal capsule assembly, wherein the attachment systems of the bifurcated graft are disposed within the three capsule assemblies. A removable sheath of the capsule jacket assembly covers the bifurcated graft and capsule assemblies to provide a smooth transition along the length of the deployment catheters. The bifurcated graft is comprised of a main tubular member and two tubular legs, having attachment systems with wall engaging members secured to the superior end of the main tubular member and the inferior ends of the tubular legs. An inflatable membrane configured on the balloon catheter is used to firmly implant the attachment systems within the vessel. The bifurcated graft and attachment systems are configured to remain in the vessel after the deployment catheters are withdrawn. The method of use of the present intraluminal grafting system is also disclosed, for example, for deploying a bifurcated graft proximate the abdominal aortic bifurcation.

Expandable stents and method of making same

The invention is directed to an expandable scent for implantation in a body lumen, such a an artery, and a method for making it from a single length of tubing. The scent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. The stents are made by coating a length of tubing with an etchant-resistive material and then selectively removing portions of the coating to form a pattern for the stent on the tubing and to expose the portions of the tubing to be removed. This may done by machine-controlled activation and relative positioning of a laser in conjunction with the coated tubing. After the patterning of the tubing, the scent is formed by removing exposed portions of the tubing by an etching process.

Device and method for treatment of mitral insufficiency

A device for treatment of mitral annulus dilatation comprises an elongate body (8) having two states. In a first of these states the elon-gate body (8) is insertable into the coronary sinus (5) and has a shape adapting to the shape of the coronary sinus (5). When positioned in the coro-nary sinus (5), the elongate body (8) is transferable to the second state assuming a reduced radius of curvature, whereby the radius of curvature of the coronary sinus (5) and the radius of curvature as well as the circumference of the mitral annulus (6) is reduced.

Method of using an endovascular stent-graft with an extra vascular extension

An endovascular stent-graft with an extravascular extension is presented including: a stent-graft having an aperture and a vascular graft having an and attached to the aperture and a free end. Methods of using the endovascular stent-graft with an extravascular extension include providing the endovascular stent-graft with an extravascular extension to a target vessel of the patient and using free end to either provide access for a circulatory medical procedure or attaching the free end to another point in the circulatory system to perform a bypass operation or to provide a graft for providing hemodialysis. The methods may be performed noninvasively through incisions in the back of the patient.

DEVICE TO ENTER AN ENDOLUMINAL PROTESIS WITH ENDOLUMINAL PROTESIS.

LA PRESENTE INVENCION PROPORCIONA UN INTRODUCTOR (100) PARA SER ENVIADO DENTRO DEL SISTEMA VASCULAR EN UNA BIFURCACION ANGIOLOGICA EN LA QUE UN VASO SANGUINEO SE DIVIDE EN DOS VASOS EN RAMA PARA LOS QUE SE ESTABLECE UN STENT ENDOLUMINAL BIFURCADO (10) O UNA PROTESIS (50;70;91) QUE TIENE UNA PARTE PROXIMAL (12; 62;72;92) ADAPTADA PARA COLOCARSE EN EL VASO SANGUINEO MENCIONADO Y UNA PARTE DISTAL (16;80;94) ADAPTADA PARA COLOCARSE AL MENOS PARCIALMENTE EN UNO DE LOS DOS VASOS DIVIDIDOS, INCLUYENDO DICHO INTRODUCTOR UNA FUNDA EXTERIOR TUBULAR (101) Y UN IMPULSOR DE LA PARTE PROXIMAL (102) COLOCADO DE FORMA DESLIZABLE AL MENOS PARCIALMENTE DENTRO DE DICHA FUNDA EXTERIOR Y ADAPTADO PARA ENCAJAR LA PARTE PROXIMAL MENCIONADA (12;62;72;92) DEL STENT (10); SE CARACTERIZA POR EL HECHO DE QUE UN IMPULSOR DE LA PARTE DISTAL (103) SE HALLA COLOCADO DE FORMA CORREDIZA DENTRO, AL MENOS PARCIALMENTE, DEL IMPULSOR DE LA PARTE PROXIMAL Y ADAPTADO PARA ENCAJAR LA PARTE DISTAL (16,80,94) DEL STENT (10). EL INTRODUCTOR PUEDE ADEMAS INCLUIR UN CATETER DE GLOBO (104), QUE TIENE UNIDO UN GLOBO, COLOCADO AL MENOS PARCIALMENTE DENTRO DE LA PARTE IMPULSORA DISTAL. THIS INVENTION PROVIDES AN INTRODUCTOR (100) TO BE SHIPPED WITHIN THE VASCULAR SYSTEM IN AN ANGIOLOGICAL FORK IN WHICH A BLOOD VESSEL IS DIVIDED IN TWO GLASSES IN BRANCH FOR WHICH A BOLTED ENDOLUMINAL STENT IS SET (10) OR A PROTESTS ; 70; 91) THAT HAS A PROXIMAL PART (12; 62; 72; 92) ADAPTED TO PLACE IN THE MENTIONED BLOOD VESSEL AND A DISTAL PART (16; 80; 94) ADAPTED TO PLACE AT LEAST PARTIALLY IN ONE OF THE TWO GLASSES DIVIDED, INCLUDING SUCH INTRODUCER A TUBULAR EXTERIOR COVER (101) AND A PROXIMAL PART DRIVER (102) PLACED SLOWLY AT LEAST INSIDE THE SIDE EXTERIOR COVER AND ADAPTED TO FIT THE NEXT PART; ) OF THE STENT (10); IT IS CHARACTERIZED BY THE FACT THAT A DRIVER OF THE DISTAL PART (103) IS FOUND CORREDIZED WITHIN, AT LEAST PARTIALLY, OF THE DRIVER OF THE PROXIMAL PART AND ADAPTED TO FIT THE DISTAL PART (16,80,94) OF THE STENT ...

Method and apparatus for improving mitral valve function

A method and apparatus for reducing mitral regurgitation. The apparatus is inserted into the coronary sinus of a patient in the vicinity of the posterior leaflet of the mitral valve, the apparatus being adapted to straighten the natural curvature of at least a portion of the coronary sinus in the vicinity of the posterior leaflet of the mitral valve, whereby to move the posterior annulus anteriorly and thereby improve leaflet coaptation and reduce mitral regurgitation.

Stent delivery system and method of use

Described herein are various methods and apparatuses for delivering stents and other devices into the myocardium of a patient. One preferred stent delivery system provides access to the insertion site in the myocardium by advancing a delivery catheter through a blockage in a coronary artery, or around the blockage through a coronary vein or through a channel or tunnel formed around the blockage. In one embodiment, once the distal end of the delivery catheter is adjacent the myocardium, an angled bend is created in the catheter by actuating expandable steering guides mounted to the catheter which cooperate with the walls of the blood vessel to cause the catheter to turn. Then, a guidewire is advanced through the delivery catheter and into the myocardium. In another embodiment, a tip-deflecting pull wire extends from the distal end of the delivery catheter which may be actuated to turn towards and then inserted into the myocardium. In another embodiment, an exit port facing the insertion site is provided within the catheter or a balloon mounted on the catheter so that a guidewire may be directed through a lumen and out the exit port into the myocardium. Once the guidewire punctures into the myocardium, the guidewire is anchored using barbs, balloons or other actuatable members to secure the guidewire to the myocardium. Subsequently, using a push-pull mechanism, stents and other medical devices can be advanced over the guidewire into the myocardium.

Coronary artery by-pass forming device

(57)【要約】 【課題】閉塞した冠状動脈に外科的にバイパスを形成す る装置によって、心臓の腔から閉塞した冠状動脈の閉塞 より遠位にある部位へと直接つながる経路であって、心 収縮期と心拡張期のどちらの間も開いたままになってい る経路を確保し、かつ冠状動脈壁に直接衝突する高速度 血流の発生を防止することができる装置を提供する。 【解決手段】冠状動脈30内の閉塞34の下流の心臓壁42に 孔を開け、中空の導管10´を埋め込む。導管10´は第1 末端12a´と第2末端14a´を持ち、第1末端12a´を心臓4 2の腔と血流が連絡するように設置し、第2末端14a´を 冠状動脈30と血流が連絡するように設置する。導管10´ はＬ字管又はＴ字管が好ましく、第1末端12a´の先端を 心臓42の壁から1-3mm突出させて配置するのが好まし い。

Designs for left ventricular conduit

A conduit is provided to provide a bypass around a blockage in the coronary artery. The conduit is adapted to be positioned in the myocardium or heart wall to provide a passage for blood to flow between a chamber of the heart such as the left ventricle and the coronary artery, distal to the blockage. The stent is self-expanding or uses a balloon to expand the stent in the heart wall. Various attachment means are provided to anchor the stent and prevent its migration.

Anastomosis device having at least one frangible member

An anastomosis device may include at least one first element connectible to at least one second element, where at least one first element is frangible. At least one second element may include at least one opening therethrough, where each opening receives a corresponding first element. At least one deflectable tab may extend into at least one opening to engage a corresponding first element.

Expandable stents

Method for installing a stent graft

A first catheter (30) has a return bend formed near its distal free end and a first magnet (32) mounted on the distal free end. The first catheter (17) is introduced through a sheath in a first common femoral artery (16) into an elongate leg of a stent graft and pulled back until the return bend positions the first magnet near a truncate leg of the stent graft. A second catheter (36) having a second magnet (38) on its distal free end is introduced through a second common femoral artery (18) and positioned near the first magnet (32) so that the magnets become interconnected. The second catheter (18) is pulled into the stent graft, a guide wire is inserted through it, and a second sheath is introduced into the stent graft. A contralateral limb is deployed through the second sheath and the second sheath is removed. In another embodiment, catheters with magnets pull a nephroureteral stent from a kidney.

Vascular embolization with an expansible implant

A vascular implant formed of a compressible foam material has a compressed configuration from which it is expansible into a configuration substantially conforming to the shape and size of a vascular site to be embolized. Preferably, the implant is formed of a hydrophilic, macroporous foam material, having an initial configuration of a scaled-down model of the vascular site, from which it is compressible into the compressed configuration. The implant is made by scanning the vascular site to create a digitized scan data set; using the scan data set to create a three-dimensional digitized virtual model of the vascular site; using the virtual model to create a scaled-down physical mold of the vascular site; and using the mold to create a vascular implant in the form of a scaled-down model of the vascular site. To embolize a vascular site, the implant is compressed and passed through a microcatheter, the distal end of which has been passed into a vascular site. Upon entering the vascular site, the implant expands in situ substantially to fill the vascular site. A retention element is contained within the microcatheter and has a distal end detachably connected to the implant. A flexible, tubular deployment element is used to pass the implant and the retention element through the microcatheter, and then to separate the implant from the retention element when the implant has been passed out of the microcatheter and into the vascular site.

Combination double-barreled and debranching stent grafts and methods for use

A combination double-barreled and debrancbing stent graft and methods for its use, where the stent graft comprises, a main body stent graft defining a single lumen with distal and proximal ends, a first bifurcation in the main body defining first and second lumens, the main body stent graft defines a tubular wall that is contiguous with the first and second lumens such that any fluid entering the main body stent graft must exit by entering one of the first or second lumens, (c) a second bifurcation within the first lumen defining a first leg and a second leg, (d) a third bifurcation within the first leg defining a third leg and a fourth leg, and (e) a fourth bifurcation within the second leg between about 10 mm and about 20 mm distal from the second bifurcation defining a fifth leg and a sixth leg.

Catheter with attached flexible side sheath

A method of positioning a main stent at a vessel bifurcation such that a side opening in the main stent is positioned at the ostium of a branch vessel, comprising: positioning a main guidewire in the main vessel such that a distal end of the main guidewire extends past the bifurcation; advancing a stent delivery system to a position proximate the bifurcation, the stent delivery system comprising a catheter with a flexible side sheath attached thereto, wherein the catheter is received over the main guidewire, and wherein the main stent is positioned over the catheter with the flexible side sheath positioned to pass through the interior of the main stent and out of the side opening in the main stent; advancing a branch guidewire through the flexible side sheath attached to the catheter and into the branch vessel; and subsequently, advancing the catheter over the main guidewire while advancing the flexible side sheath over the branch guidewire while viewing relative movement of a marker positioned on the flexible side sheath with respect to at least one marker positioned on the catheter, wherein the relative movement indicates that a portion of the flexible side sheath adjacent the side opening in the main stent is advancing into the ostium of the branch vessel, thereby indicating the position of the side opening of the main stent with respect to the ostium of the branch vessel.

Expandable stents and method for making same

The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.

Bifurcation stent manufacturer

Debranching of the visceral stent graft

Un injerto de endoprótesis de desramificación que comprende: un injerto de endoprótesis del cuerpo principal (805) con una primera bifurcación (810) que define una primera pata (815) y una segunda pata (820), en donde el injerto de endoprótesis del cuerpo principal (805) tiene un extremo distal (806) y un extremo proximal (807); en donde el injerto de endoprótesis del cuerpo principal (805) tiene un diámetro en el extremo proximal (807) en el intervalo de aproximadamente 18 mm a aproximadamente 22 mm; en donde cada una de la primera pata (815) y la segunda pata (820) tiene un diámetro en el intervalo de aproximadamente 14 mm a aproximadamente 16 mm; en donde la distancia desde el extremo proximal (807) del injerto de endoprótesis del cuerpo principal (805) al extremo distal (816) de la primera pata (815) está en el intervalo de aproximadamente 70 mm a aproximadamente 90 mm; y en donde la distancia desde el extremo proximal (807) del injerto de endoprótesis del cuerpo principal (805) al extremo distal (806) de la segunda pata (820) está en el intervalo de aproximadamente 80 mm a aproximadamente 100 mm, y en donde la segunda pata (820) es al menos aproximadamente 10 mm más larga que la primera pata (815); y una primera extremidad visceral (825) unida a una de la primera pata (815) o la segunda pata (820) en el extremo distal (806) del injerto de endoprótesis del cuerpo principal (805) en una configuración unitaria, en donde la primera extremidad visceral (825) tiene una segunda bifurcación (830) que define una tercera pata (835) y una cuarta pata (840).

Aortic graft, and method and apparatus for repairing an abdominal aortic aneurysm

An aortic graft, and method and apparatus for repairing an abdominal aortic aneurysm includes a tubular graft which is intraluminally delivered through the aorta and secured to the aorta by the expansion and deformation of a thin-walled tubular member.

Bypass grafting method which uses a number of balloon catheters to inhibit blood flow to an anastomosis site

A method of securing an end portion of a graft to a blood vessel of a patient's circulatory system during a bypass grafting procedure includes the step of inhibiting blood flow to a region of the circulatory system by inflating a number of balloons within the circulatory system, wherein a segment of the blood vessel is located in the blood flow inhibited region. The method further includes the step of creating an arteriotomy in a sidewall of the segment of the blood vessel while the number of balloons are inflated within the circulatory system. Additionally, the method includes the step of anastomosing the end portion of the graft to the segment of the blood vessel during the blood flow inhibiting step.

Anti-stenotic method and product for occluded and partially occluded arteries

Methods of artificially lining a vessel, especially an artery, of a medical patient to address the existence of a flow-inhibiting atheroma and to significantly alleviate the probability of restenosis, and the resulting products.

Stent for supporting lumens in living tissue

Combination double-barreled and debranching stent grafts and methods for use

A combination double-barreled and debrancbing stent graft and methods for its use, where the stent graft comprises, a main body stent graft defining a single lumen with distal and proximal ends, a first bifurcation in the main body defining first and second lumens, the main body stent graft defines a tubular wall that is contiguous with the first and second lumens such that any fluid entering the main body stent graft must exit by entering one of the first or second lumens, (c) a second bifurcation within the first lumen defining a first leg and a second leg, (d) a third bifurcation within the first leg defining a third leg and a fourth leg, and (e) a fourth bifurcation within the second leg between about 10 mm and about 20 mm distal from the second bifurcation defining a fifth leg and a sixth leg.

Balloon catheter for multiple adjustable-length stent deployment

A catheter configured to carry one or more stents and having an inflatable balloon for expanding a stent surrounding the balloon. The catheter is characterized in having a positioner for moving the one or more stents relative to the balloon from a first position in which the stent does not surround the balloon to a second position in which the stent surround the balloon. Also disclosed is a method for deploying a stent at a desired location in the vascular system.

Implant with deflector for intravascular dilation

Expandable stents and method for making same

The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. Portions of the expanded stent project outwardly into engagement with the vessel wall to more securely attach the stent.

PROSTHESIS FOR PHYSICAL GANGES

Device for implantation

(57)【要約】 【課題】人体の湾曲した部位にも適切に定着させること のできる人工血管を提供する。 【解決手段】前リング状線材部１０ 1 と、この前リング 状線材部１０ 1 に対向配置された後リング状線材部１０ 2 と、それらのリング状線材部１０ 1 、１０ 2 の間を連結す る筒状の表装材７と、両リング状線材部１０ 1 、１０ 2 の 間の間欠位置に配置された中間リング状線材部１２とを 具備してなり、各リング状線材部１０ 1 、１０ 2 、１２に 折り曲げ自在な弾性を付与してなる人工血管であって、 この人工血管を縮める方向に働く伸縮可能な弾性線条体 ５００Ｘを設けることとした。

Expansible implant for vascular embolization and method of making the same

A vascular implant formed of a compressible foam material has a compressed configuration from which it is expansible into a configuration substantially conforming to the shape and size of a vascular site to be embolized. Preferably, the implant is formed of a hydrophilic, macroporous foam material, having an initial configuration of a scaled-down model of the vascular site, from which it is compressible into the compressed configuration. The implant is made by scanning the vascular site to create a digitized scan data set; using the scan data set to create a three-dimensional digitized virtual model of the vascular site; using the virtual model to create a scaled-down physical mold of the vascular site; and using the mold to create a vascular implant in the form of a scaled-down model of the vascular site.

Implantable vascular device

An implantable device grafted directly to vascular structures for high volume blood and/or fluid infusion and/or removal for such purpose as hemodialysis, apheresis, exchange transfusion, or large volume fluid infusion. The device is also adaptable to intermittent access to the venous or arterial circulations for purpose of blood sampling or giving medications. The device is comprised of an implantable fluid chamber connected to a vascular shunt which is then grafted directly to the vascular structure (e.g. artery or vein). The vascular end of the device employs a valve to prevent reflux of blood and subsequent washout of anticoagulant during periods when the device is not in use. The device is accessed percutaneously with a needle or needle-introduced catheter and is filled with anti-coagulant prior to needle withdrawal to prevent thrombosis.

Stent delivery system and method of use

Described herein are various methods and apparatuses for delivering stents and other devices into the myocardium of a patient. One preferred stent delivery system provides access to the insertion site in the myocardium by advancing a delivery catheter through a blockage in a coronary artery, or around the blockage through a coronary vein or through a channel or tunnel formed around the blockage. In one embodiment, once the distal end of the delivery catheter is adjacent the myocardium, an angled bend is created in the catheter by actuating expandable steering guides mounted to the catheter which cooperate with the walls of the blood vessel to cause the catheter to turn. Then, a guidewire is advanced through the delivery catheter and into the myocardium. In another embodiment, a tip-deflecting pull wire extends from the distal end of the delivery catheter which may be actuated to turn towards and then inserted into the myocardium. In another embodiment, an exit port facing the insertion site is provided within the catheter or a balloon mounted on the catheter so that a guidewire may be directed through a lumen and out the exit port into the myocardium. Once the guidewire punctures into the myocardium, the guidewire is anchored using barbs, balloons or other actuatable members to secure the guidewire to the myocardium. Subsequently, using a push-pull mechanism, stents and other medical devices can be advanced over the guidewire into the myocardium.

Device and method for treatment of mitral insufficiency

A device for treatment of mitral annulus dilatation comprises an elongate body having two states. In a first of these states the elongate body is insertable into the coronary sinus and has a shape adapting to the shape of the coronary sinus. When positioned in the coronary sinus, the elongate body is transferable to the second state assuming a reduced radius of curvature, whereby the radius of curvature of the coronary sinus and the radius of curvature as well as the circumference of the mitral annulus is reduced.

Method and apparatus for performing coronary artery bypass surgery

A method and apparatus for performing coronary artery bypass surgery establishes a channel leading directly from a chamber of a heart into a coronary artery. The coronary artery bypass procedure may be performed with or without cardiopulmonary bypass.

System for delivering a prosthesis

An introducer for delivering into the vasculature a straight or bifurcated stent or prosthesis; a method for delivering into the vasculature a straight or bifurcated stent or prosthesis; a method of treating and angeological disease using a bifurcated stent; an endoluminal stent having perpendicular hoop members, each hoop member formed of wire in a sinuous configuration, at least some of juxtaposed apices in neighboring hoops being secured to one another, such stents also forming axially aligned segments in straight stents, and segments of bifurcated stents in particular embodiments. Certain embodiments of such stents also include barbs, fabric covering and radiopaque markers.

Appliance to be implanted

Closed chest coronary bypass

A method and apparatus for performing coronary artery bypass surgery establishes a channel leading directly from a chamber of a heart into a coronary artery with said channel retained open during both diastole and systole. The coronary artery bypass procedure may be performed with or without cardiopulmonary bypass.

Methods for treating aneurysms

This invention is directed to methods for treating aneurysms wherein the aneurysmal sac is filled with a non-particulate agent or plurality of such agents and/or with a fluid composition which solidifies in situ. Filling of the aneurysmal sac employs sufficient amount of the non-particulate agent or plurality of such agents and/or the fluid composition to inhibit blood flow into the aneurysm sac. In addition, the methods of this invention also provide for non-endogenous isolation of the parent artery proximal and distal to the aneurysmal sac from systemic blood flow of the treated mammal. The combination of these features provides for treatment of the aneurysmal sac while, at the same time, inhibiting aneurysm formation and/or regrowth in the diseased portions of the arterial wall proximal and distal to the treated aneurysm.

Stent capable of attachment within a body lumen

Bifurcated endoluminal prosthesis

Radially self-expanding, implantable intraluminal device

An implantable intraluminal device comprising a radically self-expanding hollow tubular braid, wherein the device is made from a thermoplastic material which is heat-set for a sufficient time and temperature to effectuate a permanent memory in an expanded state and wherein the braid is a three-dimensional braid. <IMAGE>

Autologous vascular grafts created by vessel distension

A method is provided for forming an autologous graft by distending a donor blood vessel, and harvesting the distended portion of the vessel. Also provided is a device for in vivo, or in vitro vessel distension. Typically the device is implanted, for example, using endoscopic techniques, in a patient sometime prior to another surgery on that patient, which includes implanting a vascular graft. The device includes a stretching mechanism which is attached to a donor blood vessel, means for operating the stretching mechanism to cause the vessel to distend, and a controller, preferably externally located, for controlling the operating means. In a preferred embodiment, the device includes a pair of opposed straps (10, 12) attached to a healthy, small diameter donor blood vessel such as a femoral artery in the leg. The straps (10, 12) are displaced from each other over a period of time to continuously distend or elongate the donor vessel. The distended portion of the donor vessel is excised at the time of the bypass surgery. The ends of the donor vessel are then sutured end to end to repair the donor vessel, a procedure common in vascular repair, and generally accomplished without complication. The result is a totally autologous, living vascular graft.

Patent BR112014025458A2

Apparatus for treating defective closure of the mitral valve apparatus

The invention refers to a device for treatment of mitral annulus dilatation without the need for cardiopulmonary bypass, comprising an elongate body (8) made of memory metal which has a memory of an original shape, the elongate body having such dimensions as to be insertable through the venous system and into the coronary sinus (5) by a catheter technique and having two states, in a first of which the elongate body has a shape that is adaptable to the shape of the coronary sinus, and to the second of which the elongate body is transferable from the said first state by returning toward the original shape and assuming a reduced radius of curvature, whereby the radius of curvature of the coronary sinus is reduced as well as the circumference of the mitral valve annulus, when the elongate body is positioned in the coronary sinus.