Катетер для эндоваскулярной эмболизации висцеральных артерий

Полезная модель относится к медицинской технике, а именно к катетерам для эмболизации висцеральных артерий через радиальный (используя лучевую артерию) доступ. Катетер для эндоваскулярной эмболизации висцеральных артерий содержит проксимальный и дистальный конец, оплетку, канюлю, внутренний и наружный гибкие полимерные одноканальные армированные трубчатые элементы. Наружный трубчатый элемент с дистальным концом в форме усеченного конуса и длиной 600-750 мм расположен в проксимальной части катетера. Внутренний трубчатый элемент, эффективная длина которого составляет 1300-1500 мм, проксимальной частью вставлен с плотным прилеганием в шахту наружного трубчатого элемента, на дистальной части имеет гибкий атравматичный кончик. Проксимальный конец внутреннего трубчатого элемента закреплен в канюле, а наружный трубчатый элемент герметично соединен проксимальным концом с канюлей. Оплетка внутреннего трубчатого элемента расположена по всей длине до атравматичного кончика между наружной и внутренней ...

КАТЕТЕР УПРАВЛЯЕМЫЙ ДЛЯ ЭНДОСКОПИЧЕСКИХ ВМЕШАТЕЛЬСТВ

Изобретение относится к медицине и может быть использовано для выполнения диагностических (контрастирование) и лечебных эндоскопических вмешательств (удаления конкрементов, удаления опухолевидных образований, проведения струны, восстановления проходимости и др.) в сложных клинических ситуациях. Катетер содержит внутри тяги на изгибаемых участках с дистальной и проксимальной стороны. Опорные кольца крепят спираль, сквозь которую проходят закрепленные к опорному кольцу тяги. Проксимальный конец катетера проходит сквозь рукоятку с местом крепления тяг при вертикальном расположении изгибаемых участков. Качанием рукоятки на участке с проксимальной стороны происходит натяжение некоторых тяг, которое передается на участок катетера с дистальной стороны. Односторонне изгибаются спирали совместно с участками катетера. Изгиб участка катетера на проксимальной стороне копируется изгибом участка катетера на дистальной стороне, но в другую сторону. В результате под контролем эндоскопа осуществляется попадание ...

MEDIZINISCHE VORRICHTUNG MIT EINEM VERBESSERTEN HANDBETÄTIGUNGSELEMENT

Katheter zum Einsatz bei Magnet-Resonanz-unterstützten interventionellen Verfahren

Katheter zum Einsatz bei Magnet-Resonanz-unterstützten interventionellen Verfahren, in dem eine elektrische Leitung (5) geführt ist, die eine erste elektrische Komponente (3), die an einem Katheter-Ende (2) angeordnet ist, mit einer zweiten elektrischen Komponente (19), die an einem anderen Katheter-Ende angeordnet ist, verbindet, wobei die elektrische Leitung (5) als Koaxialkabel ausgebildet ist, das zumindest abschnittsweise gewendelt geführt ist, wobei in dem Katheter zusätzlich Mittel (7, 9, 17) zum Biegen des einen Katheter-Endes (2) geführt sind, und die Mittel (7, 9, 17) zum Biegen des einen Katheter-Endes (2) in den gewendelten Abschnitten (13) der elektrischen Leitung (5) zumindest teilweise innerhalb der Wendelung geführt werden.

Zangeninstrument für ein Endoskop

IN ZWEI RICHTUNGEN ABLENKBARER KATHETER MIT VERMINDERTER STEIFHEIT

ORTUNGSVORRICHTUNG MIT POLYIMIDEGEFÜLLTEN VERBINDUNGSSTELLEN IM KOPFTEIL

CONTROLLABLE ONE ONE IN IT FOR A MEDICAL IMPLANTIERBARE LINE AND MANUFACTURING PROCESS FOR IT

CATHETER FROM A FLEXIBLE TUBE

BI-DIRECTIONAL OPERATING HANDLE FOR A GUIDANCE CATHETER

STATIC FOUR-BAR CHAIN

Steerable catheter

Articulating surgical tools and tool sheaths, and methods of deploying the same

A system for performing a medical procedure includes an articulating probe including inner and outer sleeves, and a surgical tool including a functional element positioned at a distal end of a tool shaft, the tool shaft having an articulation region. The articulating probe and the surgical tool are independently controllable.

Metronomic convection enhanced delivery of intrathecal chemotherapy using an implanted magnetic breather pump (MBP) for leptomeningeal carcinomatosis

Expandable multifunctional manipulating instruments for various medical procedures

CATHETER WITH ADJUSTABLE DEFLECTION

A catheter having a catheter shaft that has a more uniform construction throughout its length and is able to provide more than one deflection curvature. The catheter shaft includes a flexible outer tubular member, and a less flexible inner tubular member extending through the outer tubular member in a proximal section of the catheter shaft, wherein the inner tubular member is afforded longitudinal movement relative to the outer tubular member. The catheter also includes at least one puller wire extending through the inner tubular member to deflect a distal deflection section of the catheter shaft, wherein longitudinal movement of the inner tubular member relative to the outer tubular member enables an operator to select and set a deflection curvature of the distal deflection section. Jill Iir IIo ...

MEDICAL DEVICE CONTROL HANDLE WITH MULTIPLYING LINEAR MOTION

A catheter for use in a patient's heart, especially for mapping a tubular region of the heart, has a catheter body, a deflectable intermediate section and a distal a mapping assembly that has a generally circular portion adapted to sit on or in a tubular region of the heart. A control handle of the catheter allows for deflection of the catheter via a first and second puller wire responsive to a deflection assembly and manipulation of distal assembly via a third puller wire responsive to a linear motion actuator assembly. The linear motion actuator assembly includes a pair of user interface knobs, a body to which a proximal end of the third puller wire anchored, and a pair of arms that movably suspends the body and transmits longitudinal travel of the knobs to the body in a manner that multiples the travel of the body relative to the travel of the knobs. co1 co LO 6 - -- 5: L ii- i ...

Steerable medical devices, systems, and methods of use

Steerable medical devices and methods of use. In some embodiments, the steerable medical devices can be steered bi-directionally. In some embodiments the steerable medical devices include a first flexible tubular member and a second flexible tubular member secured together at a location distal to a steerable portion of the steerable medical device.

Steerable gastric calibration tube

A gastric calibration tube includes an elongate member and an adjusting member. The elongate member has a length and includes a first segment and a second segment that extend along the length. The second segment includes a first side and a second side. The first and second sides are selectively movable in opposite lengthwise directions. The adjusting member is secured to one of the sides of the second segment and movable with the second segment relative to the first segment to steer the elongate member.

Articulating surgical instruments and methods of deploying the same

A surgical tool comprises an elongated first assembly and an elongated second assembly. The second assembly comprises an elongated support element, an elongated activation element moveable relative to the support element, and a functional mechanism coupled to the activation element. A movement of the functional mechanism is in response to a movement of the activation element. A force imparted by the movement of the activation element is isolated from the first assembly by the support element.

Flexible elongate device having a steerable distal extremity

IMPROVED SHEATH FOR USE WITH AN ENDOSCOPE

A medical apparatus and method useful for positioning one or more members within the gastro-intestinal tract is disclosed. The sheath can be provided with texture on an inside surface to facilitate installation of the endoscope in the sheath, and to permit the endoscope to be gripped through the sheath.

DEVICE, SYSTEM AND METHOD FOR DELIVERING A CURABLE MATERIAL INTO BONE

A curable material delivery cannula device is disclosed. The device includes a cannula and a hub. The cannula includes an open proximal end, a deflectable segment forming a pre-set curve, a lumen, and side orifice(s) adjacent, and proximally spaced from, the distal end and fluidly connected to the lumen. When inserted within a guide cannula, the deflectable segment straightens. When distally extended from the guide cannula, the deflectable segment reverts to the curved shape. The distal end has a blunt tip for non-traumatic interface with bodily material. During use, curable material, such as bone cement, is delivered from the side orifice(s) in a radial direction relative to the lumen.

TRANSSEPTAL CATHETERIZATION ASSEMBLY AND METHODS

Improved hand assemblies and methods combining a number of the separate known devices used in transseptal catheterization procedures, including sheaths, dilators, and needle assemblies (including a puncture device and a stylet, for example). The hand assemblies provide cooperating members that reduce the overall complexity and increase safety of transseptal catheterization procedures.

A CATHETER STEERING SYSTEM

CATHETER ACTUATOR

A catheter actuator 10 includes at least two carriers 12, 14 displaceably arranged relative to each other. A first catheter sheath component of a catheter sheath assembly is connectable to a first carrier 12 and a second catheter sheath component of the catheter sheath assembly is connectable to a second carrier 14. A control mechanism 22 is carried, in use, by a catheter handle and is associated with the carriers 12, 14 to effect relative displacement between the carriers 12, 14 to cause displacement of a distal end of at least the first catheter sheath component between a non- deployed position and a deployed position.

DEFINED DEFLECTION STRUCTURE

DEFLECTABLE CATHETER STEERING AND LOCKING SYSTEM

A deflectable catheter includes a catheter shaft having a deflectable distal tip. A support member is coupled around a proximal portion of the catheter shaft, and the support member includes a first brake portion extending along at least a portion of the support member. A handle is coupled around the support member. The deflectable catheter includes a carnage moveably coupled along the handle, and the carriage includes a second brake portion sized and shaped to engage with at least a portion of the first brake portion. A flexible element is coupled between the deflectable distal tip and the carnage. A biasing device is adapted to bias the second brake portion into engagement with the first brake portion.

CATHETER

Provided is a catheter that can be easily manufactured. The catheter 1 is provided with: a catheter tube 11 having a flexible tip portion 11A that includes an inside tube (first tube 61) and a plurality of divided tube members 620-625 which are arranged on the outer peripheral side of the inside tube and are separate from each other; one or a plurality of metal rings arranged on the flexible tip portion 11A; one or a plurality of temperature sensors arranged in correspondence with the metal rings; and a handle 12 mounted on the base end side of the catheter tube 11. The ratio of the thickness of the metal rings with respect to the outer diameter of the metal rings is 7.5% or greater. The flexible tip portion 11A is configured such that the metal rings and the plurality of divided tube members 620-625 are respectively fitted to each other in a row in the axial direction of the catheter tube 11 on the outer peripheral surface of the inside tube.

ARTICULATING SURGICAL INSTRUMENTS AND METHOD OF DEPLOYING THE SAME

A surgical instrument comprises a steering mechanism. The steering mechanism comprises a handle at a proximal end of the surgical instrument. The handle includes a plurality of controls for controlling a movement of the surgical instrument. The steering mechanism also comprises a hub that rotatably mates with the handle and a housing positioned about the hub. The handle, the housing, and the hub communicate with each other to provide at least a first degree of freedom and a second degree of freedom. An articulation region is at a distal end of the surgical instrument. A movement of the steering mechanism handle in one and only one of the first or second degrees of freedom relative to at least one of the housing or the hub translates to a movement of the articulation region in a single plane of motion.

SHAPEABLE RE-ENTRY DEVICES AND ASSOCIATED SYSTEMS AND METHODS

Methods for treating a patient using intravascular devices, systems, and methods are disclosed herein. One aspect of the present technology is directed to an intravascular device having an elongated member coupled to and extending between a handle and an angled distal portion. The distal portion is moveable between a first configuration having a first shape configured for intravascular delivery and a second configuration having a second shape, different than the first shape, that is configured for intravascular delivery.

SYSTEMS AND APPARATUS FOR FACILITATING INTRANASAL TREATMENT OF A PATIENT

Systems are disclosed for facilitating intranasal treatment of a patient's sphenopalatine/pterygopalatine recess. Likewise the instant system is effective for addressing acute pain conditions, and is refined enough to be performed by physician's assistants, nurses, and other well-trained practitioners. Apparatus involved includes a sheath hub, a catheter hub, an arresting element, and an engagement element in embodiments. Engagement between the arresting element and the engagement element prevents rotation of the sheath hub with respect to the catheter hub.

CATHETER WITH NEEDLES FOR ABLATING TISSUE LAYERS IN VESSEL

A catheter has a catheter body and a distal tip section with needles that are positioned radially to extend outside of the distal tip section to pierce and penetrate tissue layers of a vessel or tubular region. The needles are supported in a retracted position inside the distal tip section on an elongated support member. For deployment, the needles are lifted and a portion thereof pushed through openings in the distal tip section by an actuator that is longitudinally slidable on the elongated support member. The actuator has a tapered end to help lift the needle onto the actuator. In another embodiment, an inflatable balloon member with needles is movable between retracted and deployed positions.

SELF-HOLDING MEDICAL DEVICE CONTROL HANDLE WITH CAM ACTUATED CLUTCH MECHANISM

A medical device control handle has a first actuation assembly and a second actuation assembly, wherein each assembly has a shaft that is axially aligned but not rotationally coupled with the other shaft. The first actuation assembly includes a first actuation member and a clutch mechanism having a friction disk for generating frictional torque in rendering the first actuation member self-holding. The first actuation member has a cam portion adapted to impart translational motion and rotational motion for disengaging the clutch mechanism upon pivotation of the first actuation member, thus allowing rotation of the first shaft to manipulate a feature of the medical device, for example, deflection. The second actuation assembly includes a second actuation member and a translating member that is responsive to rotation of the second shaft so as to manipulate another feature of the medical device. The second actuation member is also self holding.

MEDICAL PROBE WITH FLUID ROTARY JOINT

A catheter is provided that includes an external sheath, a rotatable conduit housed within the external sheath, and a fluid rotary joint having a rotatable insert that places an inner lumen of the rotatable conduit in fluid communication with an external port under rotation of the rotatable conduit. The rotatable insert may include a channel structure including an external annular channel. The rotatable conduit is received within the channel structure such that the inner lumen is in fluid communication with the external port through the annular channel under rotation of the rotatable conduit. The external sheath may define an outer lumen that may be in fluid communication with the inner lumen at a location remote from a proximal portion of the catheter, and the outer lumen may be in fluid communication with a secondary port. The rotatable conduit may be housed within a torque cable that is connected to the rotatable insert.

ARTICULATING SURGICAL TOOLS AND TOOL SHEATHS, AND METHODS OF DEPLOYING THE SAME

A system for performing a medical procedure includes an articulating probe including inner and outer sleeves, and a surgical tool including a functional element positioned at a distal end of a tool shaft, the tool shaft having an articulation region. The articulating probe and the surgical tool are independently controllable.

SELECTIVELY DEFORMABLE ABLATION DEVICE

In accordance with at least one aspect of this disclosure, an ablation apparatus includes a proximal body portion, a shaft extending distally from the proximal body portion, the shaft being selectively deformable utilizing at least one deformation system between a first position wherein the shaft is straight an a second position wherein the shaft is bent, the at least one deformation system configured to retain the shaft in each of the first and second positions, and at least one electrode disposed at least partially within the shaft, the electrode movable with the shaft upon movement of the shaft between the first and second positions.

SELF-HOLDING MEDICAL DEVICE CONTROL HANDLE WITH CAM ACTUATED CLUTCH MECHANISM

A medical device control handle has a first actuation assembly and a second actuation assembly, wherein each assembly has a shaft that is axially aligned but not rotationally coupled with the other shaft. The first actuation assembly includes a first actuation member and a clutch mechanism having a friction disk for generating frictional torque in rendering the first actuation member self-holding. The first actuation member has a cam portion adapted to impart translational motion and rotational motion for disengaging the clutch mechanism upon pivotation of the first actuation member, thus allowing rotation of the first shaft to manipulate a feature of the medical device, for example, deflection. The second actuation assembly includes a second actuation member and a translating member that is responsive to rotation of the second shaft so as to manipulate another feature of the medical device. The second actuation member is also self holding.

MEDICAL DEVICE WITH IMPROVED ACTUATING HANDLE

This invention is a medical device (10) having a body (18), an actuating member (24) mounted to move relative to the body, a working element (20) and an elongated force transmitting member (12) capable of transmitting force between the actuating member and the working element. The force transmitting member includes a flexible cable portion. The force transmitting member is attached on one side of the cable portion to the body, and associated in a driving relationship on an opposite side of the cable portion with the working element. The actuating member includes a pulley surface (26) bodily movable therewith. The cable portion is trained about the pulley surface such that movement of the actuating member, given a distance relative to the body, causes the working element to move a substantially greater distance than the given distance.

STEERABLE CANNULA

PCT/US92/01235 A device suitable for insertion into a mammalian body comprises an elongated tube (22) or cannula, an elastic member (24) for bending the cannula, and a straightener (26) preventing the elastic member (24) from bending the cannula. The straightener (26) and elastic member (24) are capable of relative axial movement, so that the straightener (26) can be positioned to prevent or allow the elastic from bending the cannula. Preferably the elastic member (24) is formed from a superelastic shape-memory alloy. Other versions of the device without a straightener are described.

A SPATIALLY DISTRIBUTED SMA ACTUATOR FILM

A flexible VLSI film containing shape memory alloy SMA actuator elements (105) and associated control and driver circuitry is wrapped around any bendable element such as a flexible, hollow tube, catheter tube or the like. The SMA actuator elements (105) are thus spatially distributed around the circumference of the bendable element. The SMA actuator elements (105) are selectively resistively heated with an electric current through associated decode and driver circuitry, thereby causing a portion of the film to contract. The radical distribution of the SMA actuator elements (105) across the surface of the VLSI actuator film is such that when properly activated, a device sheathed with the VLSI film is capable of executing highly dexterous maneuvers in three-dimensional space, which was not heretofore possible. The actuator elements are self-guided in that control circuitry, decode circuitry and associated microprocessors, including position mapping means are fabricated in VLSI integrally ...

EXPANDABLE MULTI-FUNCTIONAL MANIPULATING INSTRUMENTS

An expandable multi-functional instrument (10) for performing various diverse operative procedures, includes an elongate distensible member (18) having a distal end (26) for being introduced in an anatomical cavity via a relatively small size anatomical opening, and being movable from a non-distended position facilitating introduction through the anatomical opening to a distended position wherein the cross-sectional size of the distensible member is increased, and a plurality of collars (20) disposed on portions of the distensible member (18) for constraining movement of the distensible member portions to the distended position. The collars (20) are movably mounted on the distensible member (18) for adjusting the location and size of unconstrained distensible portions (34) of the distensible member (18) adjacent the collars (20). A method of performing an operative procedure in an anatomical cavity includes the steps of introducing a distal end of an elongate distensible member in the anatomical ...

Katheter

GUIDE CATHETER WITH REMOTE CONTROLLER WITH MICRO BALLOON.

Deflectable flexible tubular guide, especially for a medico-surgical device.

Catheter

Handle and catheter provided with same

DEVICE AND METHOD FOR MEDICAL PROBE.

Device and method of medical probe

링크 유닛, 암 모듈 및 이들을 가지는 수술용 장치

... 충분한 강성을 가지는 고정 모드와, 자유로운 움직임이 가능한 조향모드를 가진 수술용 장치를 개시한다. 수술용 장치는 적어도 1 이상의 자유도를 가지도록 구성된 적어도 하나의 암 모듈을 포함하고, 적어도 하나의 암 모듈은 암 모듈을 움직이게 하는 적어도 하나의 스티어링 케이블과, 적층되어 적어도 하나의 암 모듈을 형성하도록 구성된 복수의 링크 유닛을 포함하고, 링크 유닛은 링크 유닛의 상측에 반구형으로 형성되는 머리부와, 다른 링크 유닛의 머리부가 안착될 수 있도록 링크 유닛의 하측에 형성되는 안착부와, 머리부와 안착부가 서로 슬라이딩될 수 있도록 안착부에 마련되는 슬라이딩 볼을 포함하여 구성될 수 있다.

RADIO FREQUENCY OUTPUT APPARATUS IN WHICH A CHANGE OF DIRECTION IS FREE

PURPOSE: A radio frequency output apparatus is provided to improve restitution force which spreads out a bending portion by forming a restitution force generating body into shape memory alloy material. CONSTITUTION: A plurality of cable for direction control is extended from the lower side of a high frequency divergent unit(100) to a handle unit(200). At least, one among the plurality of cable for direction control is composed of shape memory alloy material. A cable drive member(20) is arranged at a handle unit. The cable drive member is connected with the plurality of cable for direction control. The cable drive member bends the high frequency divergent unit by pulling one among the plurality of cable for direction control toward the handle unit. COPYRIGHT KIPO 2012 ...

CATHETER SYSTEMS

A remotely operable medical system uses a sensor to measure a pose of a catheter and a control system coupled to a mechanical system. The control system has multiple operating modes including a holding mode in which the control system uses sensor feedback and operates the mechanical system to maintain a working configuration. A vision probe can be used to steer and pose the catheter, and then be removed and replaced with the medical probe when a medical task such as a lung biopsy is performed. Functionality for the system can be divided between the catheter and the vision probe. The sensor may include an electromagnetic sensor to measure a first section and a fiber shape sensor to measure a second smaller section.

CATHETER HAVING DEFLECTABLE TIP

The present invention aims to provide a deflectable-tip catheter having a tip section that can be easily bent along a virtual plane including the central axis of a pair of bar springs and which has excellent torque transmission. This catheter (100) has: a shaft (10) having a multi-lumen structure and comprising a tip shaft section (11); a pair of operation wires (51, 52) extending inside the shaft; and a pair of bar springs (61, 62) extending inside the tip shaft section. The pair of operation wires are slidably inserted inside each of two wire lumens (111, 112) arranged facing each other across the central axis of the shaft; each of the wire lumens has a central axis upon a second virtual plane (P2) orthogonal to a first virtual plane (P1) that includes each of the central axes of the wire lumens; the pair of bar springs are slidably inserted, respectively, in each of two bar spring lumens (113, 114) arranged facing each other across the central axis of the shaft; and a base end of the ...

SYSTEMS AND METHODS FOR CONFIGURING COMPONENTS IN A MINIMALLY INVASIVE INSTRUMENT

A catheter system comprises an elongate flexible catheter and a support structure mounted on the catheter. The support structure comprises a first alignment feature and a second alignment feature. The system further comprises a first sensor component mated with the first alignment feature and a second sensor component mated with the second alignment feature. The first sensor component is fixed relative to the second sensor component in at least one degree of freedom at the support structure by the first alignment feature.

ELECTRODE CATHETER

An electrode catheter is provided with: a catheter shaft (10); an operating handle (20) provided with a connector (70); a tip electrode (31); ring-shaped electrodes (32-34); lead wires (41-44) connected to the tip electrode (31) and the ring-shaped electrodes (32-34), respectively; and a pull wire (50) affixed to the tip electrode (31). The catheter shaft (10) comprises: a shaft proximal end section (11) comprising a metallic tube; a shaft distal end section (12) comprising a resinous tube; and a resinous coating layer (13) for covering the outer peripheries of both the shaft proximal end section (11) and the shaft distal end section (12). A lead wire protective tube (61) which comprises a soft tube and a wire protective tube (62) which comprises a soft tube are inserted in the shaft proximal end section (11). In the electrode catheter, the lead wires extending from the shaft proximal end section into the operating handle are not damaged or broken by coming into contact with the edge of ...

SYSTEM AND METHOD FOR NAVIGATING A DEVICE THROUGH A PATH TO A TARGET LOCATION

A method for delivering an elongated medical device along a path to a target location using a catheter procedure system includes generating a mask of the path, tracking a position of a distal portion of the elongated medical device based on a set of real-time images and determining a remaining path length based at least on the position of the distal portion of the elongated medical device. The remaining path length is a distance between the distal portion of the elongated medical device and the target location. The remaining path length decreases as the distal portion of the elongated medical device approaches the target location. The method also includes updating the remaining path length during movement of the elongated medical device, determining if the distal portion of the elongated medical device is off path, adjusting the position of the elongated medical device if the distal portion of the elongated medical device is off path, monitoring the distal portion of the elongated medical ...

STEERABLE MEDICAL DEVICES, SYSTEMS, AND METHODS OF USE

Steerable medical devices and methods of use. In some embodiments, the steerable medical devices can be steered bi-directionally. In some embodiments the steerable medical devices include a first flexible tubular member and a second flexible tubular member secured together at a location distal to a steerable portion of the steerable medical device.

STEERABLE KINK-RESISTANT SHEATH

A steerable kink resistant access device is provided having an elongated body and a steerable portion. The access sheath has an outside diameter sufficiently small so that it may be inserted into a body cavity or conduit. The access sheath typically has two internal lumen, a first lumen sized and configured as an access to a surgical site and a second lumen sized and configured to contain a tensioning device that, when acted upon, will deflect the steerable portion. The tensioning device may be directly or remotely attached to an actuation device that operates to control the tensioning and loosening of the tensioning device.

MEDICAL SHEATH AND CATHETER

A medical sheath including first and second tubes (11, 12) connected by a hollow joint (13), wherein the joint (13) includes: a pair of joint members (31, 32) that forms an internal hollow cylinder (13c) and a generally cylindrical space (34); a first rotation control member (41) that is fixed and held at a first circumferential position (P1) of the first joint member (32) while being engaged movably at a second circumferential position (P2) of the second joint member (31) and is able to rotate both joint members (31, 32) in one of increase/decrease directions of a relative torsional angle between the circumferential positions (P1, P2); and a second rotation control member (42) that is able to rotate both joint members (31, 32) in the other of the increase/decrease directions of the relative torsional angle.

CONTROLLING SHAFT BENDING MOMENT AND WHIPPING IN A TENDON DEFLECTION OR OTHER TENDON SYSTEM

A tendon deflection system including a shaft, a plurality of tendons movably disposed within the shaft, and a force-balancing element coupled to the tendons. In a first section, the plurality of tendons are arranged around the shaft at equal angles to each other and at an equal distance from the center of the shaft. The tendons operating in concert with the force-balancing element minimize the moment expressed in the first section. The second section is deflectable and includes at least one tendon, extending from the plurality of tendons in the first section, which is arranged along one side of the shaft such that the bending moment expressed in the second section is greater than the first section.

Steerable guidewire with deflectable tip

The present invention is directed to a steerable guidewire. More specifically, the invention is directed to a guidewire which comprises flexible tubing having proximal and distal ends and inner and outer surfaces, a helically wound flexible spring coil having proximal and distal ends, the proximal end of the spring coil being attached to the flexible tubing and the distal end of the spring coil comprising stretched coils, a deflection wire extending through the flexible tubing and spring coil, the deflection wire having proximal and distal ends, optionally a control wire having proximal and distal ends, the proximal end of the control wire being attached to the spring coil proximal to the stretched coils, and a rounded tip engaging the distal end of the spring coil, the distal end of the deflection wire, and the distal end of the control wire.

Steerable catheter guidewire

Steerable flexible elongate device comprising a flexible elongate member having proximal distal extremities and having a centrally disposed lumen extending into the distal extremity. The flexible elongate member has at least three additional lumens spaced apart circumferentially about the centrally disposed lumen and extending into the distal extremity. A stiffener element is disposed in the centrally disposed lumen and has proximal and distal extremities. Additional flexible elongate elements having a negative coefficient of expansion are disposed in each of the three additional lumens and have proximal and distal extremities. The distal extremities of the stiffener element and the additional flexible elongate elements are secured to the distal extremity of the flexible elongate member. The proximal extremities of the stiffener element and the additional flexible elongate elements are also secured relative to the distal extremity of the flexible elongate member.

STEERABLE TUBE FOR ENDOSCOPIC APPLICATIONS

A steerable tube for endoscopic applications includes a set of longitudinal elements arranged for interconnecting a proximal and a distal end portion of the steerable tube. The set of longitudinal elements is arranged for transferring a movement of the proximal to the distal end portion. The tube further includes an actuator coupled to the set of longitudinal elements at the proximal end portion, for manipulating the set of longitudinal elements, a flexible body that is arranged between the proximal and distal end portions for accommodating the set of longitudinal elements, and a coupling arrangement for establishing an adjustable coupling between the actuator and at least one of the longitudinal elements, thereby allowing the longitudinal elements to assume different lengths between the proximal and distal end portions. An endoscopic instrument, an endoscope and an assembly including a steerable tube set forth are also described.

Steerable and shapable catheter employing fluid force

A catheter employing fluid force to steer and/or shape the catheter. In one particular implementation, the catheter includes at least one actuating lumen operably associated with the shaft of the catheter. The at least one actuating lumen is in fluid communication with a valve or other fluid control means at its proximal end. The at least one actuating lumen extends along the length of the catheter shaft and terminates at some point along the length of the shaft. Upon introduction of fluid into the actuating lumen, the fluid creates a force which causes the catheter to bend. As such, fluid may be used to steer and/or shape the catheter.

Assemblies for creating compound curves in distal catheter regions

Compound steering assemblies, usable in both diagnostic and therapeutic applications, enable a physician to swiftly and accurately steer the distal section of the catheter in multiple planes or complex curves to position and maintain ablation and/or mapping electrodes in intimate contact with an interior body surface.

ROBOTIC CATHETER ROTATABLE DEVICE CARTRIDGE

A robotic catheter rotatable device cartridge may include a housing member attachable to a drive mechanism for rotating the cartridge and a catheter attached to the cartridge along an axial direction of the catheter. A slider block may be generally slidable relative to the housing and engaged with one or more steering wires for controlling movement of the catheter in a transverse direction relative to the axial direction. The catheter may include the steering wire(s) engaged therewith and movable in the transverse direction when the slider block is linearly driven in a predetermined direction.

STEERABLE CATHETERS

Medical devices having an elongated steerable member are described herein. In one embodiment, a device includes an elongated body having a proximal section, a distal section, and a working lumen extending through the proximal and distal sections, a first coil having a distal portion, and a proximal portion, the proximal portion of the first coil being slidable relative to the proximal section of the elongated body, and being closer to a wall of the elongated body than to an axis of the elongated body, wherein a lengthwise portion of the distal portion of the first coil is anchored to the distal section of the elongated body, and a first steering wire located within a lumen of the first coil.

Selectively Flexible Catheter and Method of Use

Catheter assembly including an elongate shaft comprising a thermoplastic polymer such as a thermoplastic shape memory polymer having a pre-selected glass transition temperature (Tg) and a means for heating the thermoplastic polymer, wherein the thermoplastic polymer is in a rubbery state at temperatures above the glass transition temperature and is in a glassy state at temperatures below the glass transition temperature. The elongate shaft may be selectively heated and cooled to provide sufficient flexibility and retention during a medical procedure.

AUTOMATIC GUIDEWIRE MANEUVERING SYSTEM AND METHOD

System for guiding a catheter through a lumen system of a body of a patient, to a predetermined location within the lumen system, the system including a medical positioning system, a moving mechanism coupled with the catheter, and a controller coupled with the medical positioning system and with the moving mechanism, the medical positioning system including at least one position detector, the position detector being firmly attached to a distal portion of the catheter, the medical positioning system determining the position of the position detector, the controller controlling the operation of the moving mechanism to move the catheter to the predetermined location, according to the position and according to a topological representation of at least a portion of the lumen system.

MULTI-PLANE MOTION CONTROL MECHANISM

A hand-holdable steering mechanism is used as part of a medical device such as a catheter or an endoscope to allow movement of a steerable distal portion of the catheter or endoscope. The mechanism can include a housing and an actuation system. The actuation system is adapted for one-handed operation by a user, and it allows the user to achieve 360 degree articulation of the steerable distal portion. The actuation system can include a first actuator and a second actuator where the first and second actuators are movable with respect to each other. The first actuator can be at least partially disposed within the second actuator.

SYSTEMS AND METHODS UTILIZING SHAPE SENSING FIBERS

Systems and methods that utilize shape sensing fibers are described herein. In certain variations, a fiber may include a service loop or other length that allows for sliding or displacing of a fiber within the lumen of an elongate instrument when the distal portion of the elongate instrument is articulated. Systems and methods for registering a shape sensing fiber, including registration fixtures and registration techniques are also described herein.

GUIDE MEMBER FOR FLEXIBLE MANIPULATOR, AND FLEXIBLE MANIPULATOR

To enhance the maneuverability when manipulating, or the controllability when controlling, a movable portion, which is disposed at a distal end of a flexible inserted portion (6), at a base-end side of the inserted portion (6) by using an elongated driving-force transmitting member (8), a flexible-manipulator guide member (11) according to the present invention is provided in the inserted portion (6) of a flexible manipulator including the elongated flexible inserted portion (6), the movable portion disposed at the distal end of the inserted portion (6), a drive portion disposed at the base end of the inserted portion (6), and the elongated driving-force transmitting member (10) that transmits motive power of the drive portion to the movable portion, and is provided with a lumen (12) through which the driving-force transmitting member (10) passes in the longitudinal direction, wherein the lumen (12) has a twisted shape about the longitudinal axis of the inserted portion (6).

STEERABLE FLEXIBLE NEEDLE WITH EMBEDDED SHAPE SENSING

Enhanced contact steerable bowing electrode catheter assembly

A catheter assembly (2) includes a proximal end assembly (4), with four slidable movable manipulators (12, 14, 16, 18) and a bowing catheter (6) extending from the proximal end assembly. The bowing catheter includes an elongate, flexible catheter body (24), having a tip portion (30) carrying electrodes (32), first and second elongate push/pull manipulator wires (26, 28), and a sheath (22) housing the catheter body and manipulator wires. The sheath, catheter body and manipulator wires are each coupled to a manipulator. The manipulator wires are connected to positions (40, 42) on either side of a stiff tip segment (43). The manipulator wires have sufficient columnar strength/stiffness to maintain the tip segment at a range of relatively stable orientations to cause the bowed tip to be deflected in in-plane and out-of-plane deflections.

A SPATIALLY DISTRIBUTED SMA ACTUATOR FILM

SYSTEMS AND NON-SURGICAL METHODS FOR DEVICE-AWARE FLEXIBLE TOOL REGISTRATION

СПОСОБ ЛЕЧЕНИЯ НАЧАЛЬНОЙ СТАДИИ ВАРИКОЗНОЙ БОЛЕЗНИ НИЖНИХ КОНЕЧНОСТЕЙ

Изобретение относится к медицине, а именно к сосудистой хирургии, и может быть использовано для лечения варикозной болезни нижних конечностей. Пересекают и перевязывают большую подкожную вену в начальном отделе. Антеградно вводят катетер в вену до остиального клапана. Положение катетера в вене контролируют под ультразвуковым дуплексным ангиосканированием. Производят мануальную компрессию живота. Одновременно с мануальной компрессией живота заполняют вену флебосклерозирующим раствором. Способ позволяет снизить травматичность хирургического вмешательства и количество интраоперационных осложнений.

Controllable medical probe with mandrins

A medical probe device for the reduction of tissue mass in a selected part of the body comprises a catheter which can be exposed to a torque and has a control end and a probe end. The probe end comprises a mandrin guide device with a flexible tip and a tip guiding device which extends from the control end to the flexible tip for varying the alignment of the central axis of the mandrin guide device in order to guide a flexible mandrin outwards through the mandrin opening and through tissue lying in between into the tissue regions to be reached. A mandrin is positioned in the mandrin guide device. The mandrin can be an RF electrode, a microwave antenna, a biopsy device, a fluid supply device or a combination of these. The mandrin is preferably a non-conducting sheath with an electrode lumen and a second lumen therein, the electrode lumen terminating on a distal opening in the distal end of the non-conducting sheath, a radiofrequency electrode being positioned in said electrode lumen for longitudinal ...

Katheter aus einem biegsamen Kunststoffschlauch

Katheter aus einem biegsamen Kunststoffschlauch

Medical examination/treatment system e.g. electro-physiological mapping/ablation system, has computer for evaluating acquired parameter so that parameter is output as acoustic signal, whose property is adjusted based on evaluated parameter

The system has an acquisition unit for acquiring a parameter to be monitored during an examination or treatment. A display (2) is provided for outputting the acquired parameter. A computer (3) evaluates the acquired parameter such that the acquired parameter is output by the display as an acoustic signal, where property of the acoustic signal is adjusted based on the evaluated parameter. The acoustic signal is a polyphonic tone that includes a set of individual tones, where the polyphonic tone is a triad or a chord. An independent claim is also included for method of acquiring and outputting a parameter to be monitored during an examination or treatment.

System with external radiation source for radiotherapy

The system has a controllable external radiation source (8) and a location system (3-6) co-operating with it, to control the radiation source, and to transmit radiation at an internal target body (1). The location system has a reference catheter, which has a known spatial relationship with the target object. The catheter is so designed, that it produces an associated output signal corresponding to its position, to control the radiation source.

Embryo transfer catheters and assemblies

CONTROLLABLE FLEXIBLE ONES ELONGATED DEVICE AND PROCEDURE FOR THE USE OF THE SAME

MEDICAL INSTRUMENT WITH GUIDABLE POINT.

ITSELF A SPATIAL EXTENDING FILM WITH ELEMENTS THE ONE FORM MEMORY ALLOY OPERATION

Steerable catheter with adjustable bend location and/or radius and method

Catheter having a multiple durometer

Medical probe device and method

APPARATUS AND METHOD FOR SUSTAINING VITALITY OF ORGANS OF THE GASTROINTESTINAL TRACT

Expandable multi-functional manipulating instruments

System and method for intravascular catheter navigation

Elongate insertable device with shape memory elements

Selectively deformable ablation device

In accordance with at least one aspect of this disclosure, an ablation apparatus includes a proximal body portion, a shaft extending distally from the proximal body portion, the shaft being selectively deformable utilizing at least one deformation system between a first position wherein the shaft is straight an a second position wherein the shaft is bent, the at least one deformation system configured to retain the shaft in each of the first and second positions, and at least one electrode disposed at least partially within the shaft, the electrode movable with the shaft upon movement of the shaft between the first and second positions.

UNIDIRECTIONAL CATHETER CONTROL HANDLE WITH TENSIONING CONTROL

A catheter includes a tip electrode with a shell and a support member to provide a plenum chamber. The plug is formed with a U-shaped passage for a safety line to wrap around and secure the support member (with the shell affixed thereto) to the catheter. Additional passages are formed in the plug to accommodate components such as irrigation tubing, lead wire and thermocouple wire pair. A method of manufacture provides distal installation and/or anchoring of the safety line, lead wire and thermocouple wire pair in the support member prior to sealing the support member and mounting the shell. (0 ...

MEDICAL INSTRUMENT WITH A MECHANICAL COUPLING

A medical instrument is disclosed having a flexible tube, an end effector, and an actuator. A control member, such as a control wire, can extend through the flexible tube. A mechanical coupling is disclosed for attaching the control member to the actuator. A method for mechanically coupling the control member to the actuator is also disclosed.

STEERABLE CATHETER AND METHODS OF MAKING THE SAME

The present invention is a method of manufacturing a flexible tubular body for catheter, sheath or similar medical device. The method comprises pre-extruding an inner layer of the body from a thermoplastic polymer and then pulling the inner layer over a mandrel and tightening the layer down. If wire lumens were not integrally formed in the inner layer when pre-extruded, then two polymer spaghetti tubes, each with wire lumens, are laid 180 degrees apart axially along the outer surface of the inner layer. Deflection wires are then fed into the wire lumens. A cylindrical wire braid is woven or pulled over the inner layer (and the spaghetti tubes, as the case may be) and tightened down. The aforementioned components are then encased in an outer polymer layer. A heat-shrinkable tube is then placed over the outer layer. A pressurized fluid is injected into each wire lumen to maintain the internal diameter of each wire lumen at a diameter that is greater than the diameter of the deflection wire ...

SYSTEMS AND METHODS FOR SINUS ACCESS

This application is generally related to systems and methods for accessing the paranasal sinuses and other passages of the nose, ear, and throat. The systems and methods generally employ devices capable of maintaining a fixed handle orientation with respect to the patient while generating the appropriate applicator deflection angle required to rotationally align or orient the applicator tip to the intended target tissue/anatomy for treatment. Methods are also described for deploying drug delivery devices within these body structures using the systems to treat medical conditions associated therewith.

ACTUATING ASSEMBLY FOR WIRE STEERED DEVICE AND WIRE STEERED DEVICE INCLUDING SAME

... 50 ABSTRACT OF THE DISCLOSURE An actuating assembly (10) for a wire steered device (12) provided with at least one steering wire (14). The actuating assembly (10) includes a body (22) for mounting the wire steered device (12), an axle (38) mounted to the body, a wheel (24) mounted to the axle and including a wire attachment (96) for attaching the steering wire (14) thereto with the steering wire (14) wound around at least part of the wheel (24), and an actuator (34) for selectively rotating the axle (38). The wheel (24) is movable between configurations in which the wheel (24) is either rotatable about the axle (38) or fixed in rotation relative to the axle (38). Date Recue/Date Received 2021-03-10 ...