Abstract:
Le procédé de fabrication d'une aiguille chirurgicale réalisée à partir d'un fil d'alliage hyper-élastique ou super-élastique comprenant une base d'alliage de Ni-Ti, consiste : • A réaliser une mise en forme à froid ou à température ambiante du profil courbe de l'aiguille dans un support approprié; • A faire subir un traitement thermique à l'aiguille dans son support afin de mémoriser la géométrie à profil courbe imposée; • A nettoyer l'aiguille au moyen d'un décapage chimique du type polissage électrochimique ou électrolytique ou d'une solution chimique pour retirer la couche d'oxyde déposée sur l'aiguille lors de son traitement thermique.
Abstract:
Rotator cuff tears (complete and partial) are surgically repaired without needing more dermal access than percutaneous punctures. The surgeon is afforded a range of options for where to place a second tunnel in the bone, and selection by the surgeon of a desired bone bridge size is provided in advance of tunnel construction. Also, stitching in rotator cuff surgery can be accomplished without the need for suture anchors or added cost of secondary suture passers. Multiple stitch configurations including X-patterns are possible with combinations of preloaded loops and or sutures passed simultaneously through tissue and bone. Fixation is achieved without the use of suture anchors, buttons or other rigid implants.
Abstract:
Suture passers and methods of use. Described herein are suture passers preloaded with suture, including cartridges that couple to a suture passer to form a loaded suture passer; the suture passer may be operated to pass one or more lengths of suture without having to be manually reloaded. In particular, described herein are preloaded and automatically reloading apparatuses typically.
Abstract:
An implant manipulator 400 may have a distal end 312 that retains an implant 710, a proximal end 310, and an intermediate portion 414 between the ends 310, 312. The intermediate portion 414 may have a cross-sectional shape that extends along a nonlinear pathway 532. The intermediate portion 414 may have a selectively bendable portion 430 in which the cross-sectional shape varies to facilitate bending when desired. The implant manipulator 400 may be a needle for a suture passer 1200, with a suture capture feature 360 at the distal end 312. The suture capture feature 360 may have first and second members 350, 352 that flex apart to permit entry of the suture 710 into a suture capture hole 730 wherein the suture 710 is retained until released. A suture passer 1200 may receive the needle in a bore 1250 shaped to change the cross-sectional shape to facilitate or restrict bending of the needle, as needed.
Abstract:
L'invention concerne un dispositif de guidage d'une aiguille médicale, comprenant ladite aiguille médicale (1) et un insert (2) agencé en coulissement en translation et rotation dans l'aiguille (1), ledit dispositif étant caractérisé en ce que l'insert (2) présente, à l'état libre, une portion distale (21 ) courbée et en ce que l'aiguille présente au moins deux régions (11, 12) dont les comportements mécaniques sont différents, les comportements mécaniques de chacune desdites régions (11, 12) et de la portion distale courbée (21) de l'insert étant choisis de sorte que qu'un déplacement de l'insert (2) dans l'aiguille (1) impose une déformation localisée de l'aiguille et/ou de l'insert L'invention concerne également un procédé de fabrication dudit dispositif.
Abstract:
A device for repairing a tear in a portion of tissue comprises a proximal actuator portion (12), a transfer needle (28) extending distally from the proximal actuator portion and a catch needle (30) extending distally from the proximal actuator portion. A suture needle (32) is disposed in the transfer needle, and is extendable from the transfer needle toward the catch needle and retractable from the catch needle toward the transfer needle. An extendable catch plunger (36) is disposed in the catch needle for capturing suture therein when it is transferred from the transfer needle. A retractable insertion sheath (16) is provided for covering the transfer needle and the catch needle when the device is inserted into a procedural site. A depth limiting apparatus (16) limits the depth of insertion of the needle into the procedural site.
Abstract:
A method for inserting a stitch through tissue around a hole in an abdominal muscle or a hollow organ includes: inserting into the hole a body assembly having penetration members that move from an in-line position to a deployed position, and a suture cartridge assembly secured to a forward end of the body assembly, the suture cartridge assembly having opposing arm members that move from an in-line position to a deployed position and each holding a capture sleeve to which an end of a suture cord is secured; simultaneously deploying the penetration members through the tissue around the hole and into the arm members such that the penetration members capture the capture sleeves; and simultaneously retracting the penetration members and the arm members such that the ends of the suture are retracted with the penetration members through the tissue around the hole and into the body assembly.
Abstract:
An arthroscopic meniscal tear repair device comprises a catch needle and a transfer needle, which are pierced into a torn meniscus and advanced past the tear. Suture is transferred by a suture needle from the transfer needle through the meniscus and into the catch needle. The catch needle has an internal mechanism that retains the suture. The suture needle is then retracted back to its home position inside the transfer needle, leaving the free end of the suture across the meniscus and in the catch needle. The device is then retracted out of the meniscus, leaving behind a stitch across the meniscal tear inside the meniscus. A pre-tied knot of suture is then slid down the device and cinched up using a knot pusher having a dilation tip, thus completing the repair.
Abstract:
Medical devices and methods for deploying tissue anchors for simple and reliable closure of openings in tissue are disclosed. The medical device generally includes an access sheath (22) and a flexible puncturing device (24). The flexible puncturing device is sized to be slidably received by the access sheath. The flexible puncturing device has a lumen sized to receive the tissue fastener (10). The flexible puncturing device is operable between a first linear configuration and a second non-linear configuration (Fig. 1). A distal end of the flexible puncturing device is laterally spaced from the access sheath in the second non-linear configuration, and preferably retroflexes to provide placement of the tissue anchors on a proximal side of the tissue.
Abstract:
An automated needle deployment device is provided. In one embodiment, the automated needle deployment device comprises a pusher (130), a needle (140), a tube (120), and an actuator (200). The pusher (130) has a needle engaging end. The needle (140) has a sharp end and an opposite end. A suture (150) is associated with the needle. The pusher (130) and needle (140) are slidably disposed within the tube (120). The actuator (200) comprises a control (220) and a spring (210) and is operatively associated with the pusher (130). Actuation of the actuator (200) moves the pusher (130) towards the needle expulsion end of the tube (120) such that the needle engaging end of the pusher (130) engages the needle (140) and expels the needle (140) from the tube (120).