A61B2017/0443

PRE-SHAPED TISSUE ANCHORS AND NEEDLES FOR TISSUE ANCHOR DEPLOYMENT
20210186481 · 2021-06-24 ·

A tissue anchor includes a memory metal wire configured to transition between an at least partially straightened delivery configuration and an expanded deployed configuration forming an anchor and a suture-attachment feature configured to have a suture coupled thereto. In the expanded deployed configuration, one or more portions of the memory metal wire extend radially outward from a center of the tissue anchor.

ENDOSCOPIC TISSUE APPROXIMATION SYSTEM AND METHODS

A deployment system includes a sheath, a shaft having a handle positioned at its proximal end, a micro motor having a motor shaft at the shafts distal end, a detachable helical first suture anchor positioned at the motor shafts distal end and an elongate suture fixedly coupled to the suture anchor. The deployment system can be positioned at a first tissue, and the motor shaft rotated to advance the helical first suture anchor into engagement with the first tissue. The motor shaft is detached from the first suture anchor thereby deploying it at the first tissue location. The deployment system can be reloaded with multiple suture anchors to deploy at multiple tissue locations. The suture extending between the anchors can then be drawn together to reconfigure the coupled tissue.

JOINT KINEMATIC RECONSTRUCTION TECHNIQUES

A method for reconstructing a joint according to an exemplary aspect of the present disclosure includes, among other things, fixating at least one suture inside a joint space, retrieving the at least one suture from inside the joint space, passing the at least one suture through a graft at a location external to the joint space, shuttling the graft into the joint space, and fixating the graft using the at least one suture.

Medical device shaft resistant to compression and/or tension

Medical devices and methods for making and using medical devices are disclosed. An example medical device may be a medical device with increased compression resistance. The medical device may include an elongate shaft having a proximal end region, a distal end region, a lumen extending therethrough, and a tension resistance member extending at least partially between the proximal end region and the distal end region. An exoskeleton may be disposed along an outer surface of the shaft. The exoskeleton may include a plurality of discrete segments engaged with one another. At least one of the segments may be coupled to the tension resistance member.

PERCUTANEOUS SLING FOR PAPILLARY MUSCLE APPROXIMATION

An implant system and method of delivery includes a catheter system including a sling catheter having a plurality of distal openings and a delivery catheter, disposed within the sling catheter and having a distal port. Suture coupled anchors may be sequentially delivered by the delivery catheter to a cardiac treatment site by aligning the port of the delivery catheter with different openings of the sling catheter and pushing the anchor through the port and the sling catheter to embed the anchor into cardiac tissue such as tissue of a papillary muscle. Each anchor may have a linear configuration for translation within the delivery catheter and a biased configuration that inhibits its reentry into the sling catheter once deployed. Once all anchors are deployed, the suture may be tightened, the anchored portion of the sling catheter may be detached, and the catheter system withdrawn.

Tissue anchors with hemostasis seal

A tissue anchor is provided that is configured to be delivered in a constrained state within a deployment tool. The tissue anchor includes a shaft and a tissue-coupling element, which (a) extends from a distal end of the shaft, and (b) is configured to be advanced through a heart wall and be coupled to a far side of the heart wall. The tissue anchor further includes a sealing element, which is (a) disposed around the shaft, (b) sized and shaped to be disposed entirely within the heart wall, and (c) configured to promote hemostasis. Other embodiments are also described.

Deployment techniques for annuloplasty structure

A first part of an annuloplasty structure is anchored to an annulus of a valve of a heart by using a driver to screw a tissue-coupling element of a first anchor into a first site of the annulus, such that the tissue-coupling element enters cardiac tissue in a direction parallel to a central longitudinal axis of the driver through the distal end of the anchor driver. The same is subsequently done for second and third parts of the annuloplasty structure using second and third anchors at second and third sites of the annulus, mutatis mutandis. Between anchors, the driver is retracted out of the heart. Subsequently, the valve is treated by reducing a distance between the first site and the second site, and a distance between the second site and the third site, by tightening a flexible and elongate contracting member of the annuloplasty structure.

Joint kinematic reconstruction techniques

A method for reconstructing a joint according to an exemplary aspect of the present disclosure includes, among other things, fixating at least one suture inside a joint space, retrieving the at least one suture from inside the joint space, passing the at least one suture through a graft at a location external to the joint space, shuttling the graft into the joint space, and fixating the graft using the at least one suture.

Method and apparatus for transvascular implantation of neo chordae tendinae

Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium, through the mitral valve, and into the left ventricle. A ventricular anchor is deployed from the catheter and into a wall of the left ventricle, leaving a ventricular suture attached to the ventricular anchor and extending proximally through the catheter. A leaflet anchor is deployed to secure a mitral valve leaflet to a leaflet suture, with the leaflet suture extending proximally through the catheter. The leaflet suture is secured to the ventricular suture to limit a range of travel of the leaflet in the direction of the left atrium. Also disclosed is an assembled in situ mitral valve leaflet restraint, having a neo papillary muscle and a neo chordae tendinea.

Synthetic chord for cardiac valve repair applications
11058538 · 2021-07-13 · ·

Synthetic chord devices and methods for using the same for connecting tissues are provided. Aspects of the synthetic chord devices include a first flexible connector having first and second ends. Located at the first end is an attachment element that includes a tissue piercing member coupled to a securing member. The securing member includes an elongated shape memory coil that is present in a removable sheath configured to maintain elongation of the shape memory coil. A reinforcing element is located at the second end. The devices and methods of the invention find use in a variety of applications, such as cardiac valve, e.g., mitral valve, repair.