US5855601A — Artificial heart valve and method and device for …

Claim 1

Independent Claim 101 words

An artificial heart valve comprising a self-expanding, cylindrical stent member having first and second ends and an outer surface, and a valve member comprising one-way valve means arranged within the stent and a cuff portion extending on said outer surface to a point between the first and second ends, wherein the cuff portion is configured to position the valve snugly and sealingly at a valve site; and wherein the stent member has a plurality of barbs extending from the outer surface of the stent member to engage the natural tissue of the heart to hold the valve in place after implantation.

Claim 2

Dependent Claim 101 words

An artificial heart valve comprising a self-expanding, cylindrical stent member having first and second ends and an outer surface, and a valve member comprising one-way valve means arranged within the stent and a cuff portion extending on said outer surface to a point between the first and second ends, wherein the cuff portion is configured to position the valve snugly and sealingly at a valve site; and wherein the stent member has a plurality of barbs extending from the outer surface of the stent member to engage the natural tissue of the heart to hold the valve in place after implantation.

Claim 3

Dependent Claim 15 words

The artificial valve of claim 1, wherein the valve means comprises a plurality of leaflets.

Claim 4

Dependent Claim 15 words

The artificial valve of claim 1, wherein the cuff portion extends in the downstream direction.

Claim 5

Dependent Claim 19 words

The artificial valve of claim 1, wherein the barbs are disposed in a pair of spaced apart concentric circles.

Claim 6

Dependent Claim 32 words

The artificial valve of claim 4, wherein the barbs of one circle are all extending in the same direction and the barbs of the other circle all extending in the opposite direction.

Claim 7

Dependent Claim 19 words

The artificial valve of claim 1, wherein the stent member is comprised of a suitable flexible, resilient, biocompatible material.

Claim 8

Dependent Claim 14 words

The artificial valve of claim 6, wherein the material is Elgiloy alloy or nitinol.

Claim 9

Dependent Claim 31 words

The artificial valve of claim 1, wherein the stent member comprises a closed zig-zag configuration having an endless series of straight sections and a plurality of bends joining said straight sections.

Claim 10

Dependent Claim 20 words

The artificial valve of claim 8, wherein the straight sections of said stent member are all substantially the same length.

Claim 11

Dependent Claim 13 words

The artificial valve of claim 2 wherein the valve member has three leaflets.

Claim 12

Dependent Claim 20 words

The artificial valve of claim 10, wherein the valve member is made of porcine pericardium or a suitable polymeric material.

Claim 13

Dependent Claim 25 words

The artificial valve of claim 1, wherein the valve member is attached to the stent member with a plurality of sutures or other attachment means.

Claim 14

Dependent Claim 199 words

An artificial heart valve comprising a relatively rigid stent member and a flexible valve means disposed in said stent member, said stent member comprising a wire formed into a closed zig-zag configuration having an endless series of straight sections and a plurality of bends connecting said straight sections, said stent member having a first collapsed cylindrical shape and being self-expandable to a second expanded cylindrical shape, said stent member having a plurality of barbs extending from its outer surface, said valve member comprising a circular portion, said circular portion having a plurality of leaflets extending from the periphery of said circular portion towards the center thereof, said leaflets allowing for flow of blood through the valve in one direction only, the diameter of said circular portion being substantially the same as the inside diameter of said stent member when said stent member is in its expanded cylindrical shape, said valve member having a cuff portion extending from the periphery of said circular portion, said cuff portion being disposed downstream of said valve member and substantially parallel to the cylindrical surface of said stent member and said cuff portion being attached to said stent member with a plurality of sutures.

Claim 15

Dependent Claim 199 words

An artificial heart valve comprising a relatively rigid stent member and a flexible valve means disposed in said stent member, said stent member comprising a wire formed into a closed zig-zag configuration having an endless series of straight sections and a plurality of bends connecting said straight sections, said stent member having a first collapsed cylindrical shape and being self-expandable to a second expanded cylindrical shape, said stent member having a plurality of barbs extending from its outer surface, said valve member comprising a circular portion, said circular portion having a plurality of leaflets extending from the periphery of said circular portion towards the center thereof, said leaflets allowing for flow of blood through the valve in one direction only, the diameter of said circular portion being substantially the same as the inside diameter of said stent member when said stent member is in its expanded cylindrical shape, said valve member having a cuff portion extending from the periphery of said circular portion, said cuff portion being disposed downstream of said valve member and substantially parallel to the cylindrical surface of said stent member and said cuff portion being attached to said stent member with a plurality of sutures.

Claim 16

Dependent Claim 27 words

The artificial valve of claim 13, wherein the stent member is a titanium alloy and the valve means has three leaflets and is made of porcine pericardium.

Claim 17

Dependent Claim 19 words

The artificial valve of claim 13, wherein the barbs are disposed in a pair of spaced apart concentric circles.

Claim 18

Dependent Claim 32 words

The artificial valve of claim 15, wherein the barbs of one circle are all extending in the same direction and the barbs of the other circle all extending in the opposite direction.

Claim 19

Independent Claim 206 words

A method of implanting an artificial heart valve, which method comprises providing a transluminal catheter having proximal and distal ends, wherein the distal end carries in a collapsed cylindrical shape a valve comprising a self-expanding, cylindrical stent member having first and second ends and an outer surface, and a valve member comprising one-way valve means arranged within the stent and a cuff portion extending on said outer surface to a point between the first and second ends, wherein the cuff portion is configured to position the valve snugly and sealingly at a valve site; and, wherein the stent member has a plurality of barbs extending from the outer surface of the stent member to engage the natural tissue of the heart to hold the valve in place after implantation, positioning the distal end of said catheter at a desired location for placement of said valve, moving the leading half of said valve out of the distal end of the catheter to allow the leading half of said valve to expand, and retracting the catheter slightly to remove the trailing half of said valve from the hollow end of said catheter to allow the valve to completely expand to place the heart valve in the desired location.

Claim 20

Independent Claim 206 words

A method of implanting an artificial heart valve, which method comprises providing a transluminal catheter having proximal and distal ends, wherein the distal end carries in a collapsed cylindrical shape a valve comprising a self-expanding, cylindrical stent member having first and second ends and an outer surface, and a valve member comprising one-way valve means arranged within the stent and a cuff portion extending on said outer surface to a point between the first and second ends, wherein the cuff portion is configured to position the valve snugly and sealingly at a valve site; and, wherein the stent member has a plurality of barbs extending from the outer surface of the stent member to engage the natural tissue of the heart to hold the valve in place after implantation, positioning the distal end of said catheter at a desired location for placement of said valve, moving the leading half of said valve out of the distal end of the catheter to allow the leading half of said valve to expand, and retracting the catheter slightly to remove the trailing half of said valve from the hollow end of said catheter to allow the valve to completely expand to place the heart valve in the desired location.

Claim 21

Dependent Claim 78 words

The method of claim 17, wherein the valve has a pair of spaced apart concentric circles of barbs extending from the outer surface of said heart valve, one circle of barbs is set when the leading half of the heart valve is moved out of the distal end of said catheter means and the second circle of barbs is set when the trailing half of said heart valve is removed from the distal end of said catheter means.

Claim 22

Dependent Claim 113 words

An artificial venous valve comprising a tubular valve segment containing venous valve means and having distal ends, at least one self-expanding, cylindrical stent member at a valve segment distal end, having first and second ends and an outer surface, and a cuff portion extending on the outer surface of each stent to a point between the respective first and second ends, wherein each cuff portion is configured to position the respective stent snugly and sealingly at a site; and wherein the stent member has a plurality of barbs extending from the outer surface of the stent member to engage the natural tissue of the site to hold the valve in place after implantation.

Claim 23

Dependent Claim 113 words

An artificial venous valve comprising a tubular valve segment containing venous valve means and having distal ends, at least one self-expanding, cylindrical stent member at a valve segment distal end, having first and second ends and an outer surface, and a cuff portion extending on the outer surface of each stent to a point between the respective first and second ends, wherein each cuff portion is configured to position the respective stent snugly and sealingly at a site; and wherein the stent member has a plurality of barbs extending from the outer surface of the stent member to engage the natural tissue of the site to hold the valve in place after implantation.

Claim 24

Dependent Claim 103 words

In an artificial valve for placement in a corporeal duct or vessel wherein said valve comprises a self-expanding stent member and a valve member arranged within the stent member, the improvement wherein a cuff portion extends on the outer surface of said stent member and said cuff member causes said stent member to snugly position itself to the inner surface of the corporeal duct or vessel, wherein the stent member has a plurality of barbs extending from the outer surface of the stent member to engage the natural tissue of the corporeal duct or vessel to hold the valve in place after implantation.

Claim 25

Dependent Claim 103 words

In an artificial valve for placement in a corporeal duct or vessel wherein said valve comprises a self-expanding stent member and a valve member arranged within the stent member, the improvement wherein a cuff portion extends on the outer surface of said stent member and said cuff member causes said stent member to snugly position itself to the inner surface of the corporeal duct or vessel, wherein the stent member has a plurality of barbs extending from the outer surface of the stent member to engage the natural tissue of the corporeal duct or vessel to hold the valve in place after implantation.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2002-01-04	2002-07-06	2003-01-05	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2006-01-04	2006-07-06	2007-01-05	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2010-01-04	2010-07-06	2011-01-05	$7700.00	Window Closed / Lapsed

Artificial heart valve and method and device for implanting the same

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