A61F2230/0054

Clip-secured implant for heart valve
11690712 · 2023-07-04 · ·

An implant includes a primary structural element, and two clips coupled to the primary structural element, on opposite lateral sides of the primary structural element from each other, each of the clips having a first clip element and a second clip element. The implant is transluminally advanced to a heart valve of a subject. The implant is coupled to leaflets of the valve (i) by, for each of the clips, closing the clip around a central part of a respective leaflet of the valve by causing deflection between the first clip element and the second clip element, thereby sandwiching the central part of the respective leaflet between the first clip element and the second clip element, and (ii) such that the leaflets form a double orifice configuration, with the primary structural element disposed between the central parts of the leaflets. Other embodiments are also described.

Prosthetic heart valve having improved commissure supports

A method of implanting a prosthetic heart valve within a patient can comprise inserting a distal end portion of a delivery apparatus and a prosthetic heart valve into the patient and advancing the prosthetic heart valve to a deployment location within the heart of the patient and inflating one or more of a plurality of differently-sized balloons in a balloon-assembly on the distal end portion of the delivery apparatus. The prosthetic heart valve can be mounted on the balloon assembly in a crimped state and the inflating of the one or more of the plurality of differently-sized balloons can expand the prosthetic heart valve from the crimped state to a radially expanded state having a non-cylindrical shape.

Hybrid heart valves adapted for post-implant expansion

A hybrid prosthetic heart valve configured to replace a native heart valve and having a support frame configured to be expanded post implant in order to receive and/or support an expandable prosthetic heart valve therein (a valve-in-valve procedure). The prosthetic heart valve may be configured to have a generally rigid and/or expansion-resistant configuration when initially implanted to replace a native valve (or other prosthetic heart valve), but to assume a generally expanded form when subjected to an outward force such as that provided by a dilation balloon or other mechanical expander. An inflow stent frame is expandable for anchoring the valve in place, and may have an outflow end that is collapsible for delivery and expandable post-implant to facilitate a valve-in-valve procedure.

Methods for securing a transcatheter valve to a bioprosthetic cardiac structure

A spacer for creating a docking station for a transcatheter heart valve is provided. The spacer changes an effective diameter and/or a shape of an implanted bioprosthetic structure such as a bioprosthetic heart valve or annuloplasty ring, providing a supporting structure into which the transcatheter valve expands without over expanding. The spacer may be deployed through an interventional technique either through transseptal access, transfemoral access, or transapical access and is typically deployed at least in part on an inflow portion of the implanted bioprosthetic structure.

Heart valve clamp

The application relates to a heart valve clamp, comprises a fixed arm mechanism, a clamping arm mechanism, and a driving mechanism. The fixed arm mechanism comprises a fixed arm body and at least two fixed arms, extending outward from the fixed arm body, and integrally formed with the fixed arm body. The clamping arm mechanism comprises a clamping arm body connected to a bottom of the fixed arm body, and at least two clamping arms extending outward from the clamping arm bodies and integrally formed with the clamping arm body; and the driving mechanism comprises a second driving assembly that drives the fixed arm and the clamping arm to open or close. The fixed arm mechanism and the clamping arm mechanism of the entire heart valve clamp respectively forms an integral form, which can avoid the risk of the fixed arm or the clamping arm being disengaged, the stability of the whole structure is better. The fixed arm and the clamping arm clamp the valve leaflets under three-dimensional ultrasound and angiography navigation, so that the regurgitation area is reduced, which is capable of treating mitral or tricuspid regurgitation while keeping heat beating.

Tip assemblies, systems, and methods for fracturing a frame of a deployed prosthesis

A system for fracturing a frame of a deployed prosthesis with ultrasonic vibration includes a shaft, a tip assembly, an ultrasonic electric generator, and an ultrasonic transducer. The shaft includes a proximal portion and a distal portion. The tip assembly is coupled to the distal portion of the shaft. The tip assembly includes a cutting edge. The ultrasonic transducer is electrically coupled to the ultrasonic generator. Ultrasonic vibration generated by the ultrasonic transducer is translated to the tip assembly. The cutting edge of the tip assembly is configured to focus the vibration of the tip assembly onto a frame of a deployed prosthesis to fracture the frame of the prosthesis. The ultrasonic transducer may be coupled to the proximal portion or the distal portion of the shaft.

Stented heart valve devices and methods for atrioventricular valve replacement

A compressible and expandable stent assembly for implantation in a body lumen such as a mitral valve, the stent assembly including at least one stent barrel that is shaped and sized so that it allows for normal operation of adjacent heart structures. One or more stent barrels can be included in the stent assembly, where one or more of the stent barrels can include a cylinder with a tapered edge.

STENT GRAFT WITH A LONGITUDINAL SUPPORT MEMBER
20220401241 · 2022-12-22 ·

A delivery system for delivering and deploying stent grafts having a proximal stent includes a first lumen and a stent capture device including a capture portion fixedly connected adjacent a first lumen distal end. An outer catheter has a catheter distal end and a catheter inner diameter. A second lumen having a second distal end is slidably disposed about the first lumen and within the outer catheter. A stent graft sheath has a sheath proximal end connected to the second distal end and disposed about the first lumen. The sheath has a sheath distal end and a sheath inner diameter greater than the catheter inner diameter for holding a compressed stent graft. A distal nose cone has a cone proximal end connected to either the capture portion or the first distal end. The nose cone and the capture portion are movably adjustable to selectively capture the sheath distal end therebetween.

Stent

The invention relates to a medical device and a method of using it. The device is a stent which can be percutaneously deliverable with (or on) an endovascular catheter or via other surgical or other techniques and then expanded. The stent is configured to have a central portion defined by “open” cells and at least two end portions, defined by “closed” cells, spaced apart and directly connected to the distal and proximal ends of the central portion of the stent. The stent may also optionally have a covering or a lattice with openings.

MESH AND USES THEREOF

A lightweight reinforced mesh, such as a surgical mesh, suitable for use in various applications, including breast reconstruction, cosmetic breast surgery, mastopexy, breast augmentation, breast reduction, soft tissue reconstruction, hernia repair, tissue plication reinforcement, tissue support and repair, tendon support and repair, tissue engineering, and procedures or other applications requiring additional soft tissue strength or thickness. In addition, disclosed is a use of such a mesh for tissue engineering, regardless of the surgical application. In particular, the present disclosure relates to a surgical mesh capable of providing enhanced support while maintaining flexibility, low density, and absorbable characteristics. Further the present disclosure, focuses on reducing the material burden of a scaffold while increasing void space to facilitate tissue ingrowth.