US 2025/0049569 A1 · TRANSCATHETER VALVE DELIVERY SYSTEM WITH IMPROVED LOADING AND DEPLOYMENT

Abstract

A system includes a prosthesis and a delivery system for delivery thereof. The prosthesis includes a self-expanding frame and a plurality of attachment tabs extending from a first end of the frame. The delivery system includes a shaft, a piston disposed over the shaft, and a capsule which is movable relative to the piston. The piston includes an annular groove or a plurality of circumferentially-extending grooves on an outer surface thereof. In a delivery configuration of the delivery system, the plurality of attachment tabs are disposed within the annular groove of the piston, or the plurality of circumferentially-extending grooves of the piston, and the capsule covers and constrains the prosthesis in a radially collapsed configuration, with the capsule extending over the annular groove, or the plurality of circumferentially-extending grooves, of the piston and the attachment tabs received therein.

Claims20

Dependent claims

A system comprising:

a valve prosthesis including a frame and a prosthetic valve disposed within the frame, the frame being self-expanding and including a plurality of attachment tabs extending from a first end of the frame;
and
a delivery system for percutaneously delivering the valve prosthesis, the delivery system including a shaft, a piston disposed over the shaft, and a capsule, the capsule being movable relative to the piston, wherein the piston includes an annular groove on an outer surface thereof,
wherein in a delivery configuration of the delivery system the plurality of attachment tabs are disposed within the annular groove of the piston and the capsule covers and constrains the valve prosthesis in a radially collapsed configuration, with the capsule extending over the annular groove of the piston and the attachment tabs received therein.

1 more element

A system comprising:

a valve prosthesis including a frame and a prosthetic valve disposed within the frame, the frame being self-expanding and including a plurality of attachment tabs extending from a first end of the frame;
each attachment tab of the plurality of attachment tabs having an L-shaped configuration and including a leg, a base, and a bend extending between the leg and the base, the base extending generally perpendicular to a longitudinal axis of the delivery system and the base having a first length;
and
a delivery system for percutaneously delivering the valve prosthesis, the delivery system including a shaft, a piston disposed over the shaft, and a capsule, the capsule being movable relative to the piston, wherein the piston includes a plurality of circumferentially-extending grooves on an outer surface thereof, each circumferentially-extending groove having a length that is at least 300% greater than the first length of the base of an attachment tab of the plurality of attachment tabs,
wherein in a delivery configuration of the delivery system an attachment tab of the plurality of attachment tabs is disposed within a circumferentially-extending groove of the plurality of circumferentially-extending grooves and the capsule covers and constrains the valve prosthesis in a radially collapsed configuration, with the capsule extending over the plurality of circumferentially-extending grooves and the attachment tabs received therein.

2 more elements

A method of coupling a valve prosthesis to a delivery system for delivery thereof, the method comprising:

positioning a plurality of attachment tabs of the valve prosthesis into a plurality of circumferentially-extending grooves of a piston of the delivery system, the valve prosthesis including a frame and a prosthetic valve disposed within the frame, the frame being self-expanding and including the plurality of attachment tabs extending from a first end of the frame, each attachment tab of the plurality of attachment tabs having an L-shaped configuration and including a leg, a base, and a bend extending between the leg and the base, the base having a first length and extending generally perpendicular to a longitudinal axis of the delivery system, the base having a first length and each circumferentially-extending groove having a length that is at least 300% greater than the first length;
and
positioning at least a portion of the valve prosthesis into a capsule of the delivery system such that the capsule covers and constrains the valve prosthesis in a radially collapsed configuration, with the capsule extending over the plurality of circumferentially-extending grooves of the piston and the attachment tabs received therein.

Dependencies are inferred from the claim text.

Transcatheter valve delivery system with improved loading and deployment

Life of this patent

Transcatheter valve delivery system with improved loading and deployment

Life of this patent

Abstract

Claims20