Patent ID: 11931256
Assignee: SEVEN SUMMITS MEDICAL, INC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A prosthetic heart valve for replacement of a native valve of a heart, wherein the prosthetic heart valve comprises:
a ring-shaped stent (100), having a distal end (1) and a proximal end (2) in an axial direction, and comprising: a mesh structure (110) as a circumferential sidewall of the stent, which allows the stent to be contracted or expanded in a radial direction; and
a leaflet structure (200), comprising a plurality of leaflets (210), each of which is attached to the stent and has a first portion (211) disposed within the stent and a second portion (212) being wrapped to an outer circumferential side of the proximal end of the stent, wherein the leaflet structure allows blood to flow from the proximal end to the distal end through the prosthetic heart valve and inhibits blood flowing from the distal end to proximal end through the prosthetic heart valve,
wherein with a growth of the heart, the stent is capable to be expanded to have an expanded radial dimension after the prosthetic heart valve is anchored to the heart, so as to allow the prosthetic heart valve to operate in different states without being replaced,
wherein an end edge of the second portion of each one of the plurality of leaflets is connected to the stent at a position between the distal end and the proximal end of the stent, without being fixed to the proximal end of the stent,
wherein each of the plurality of leaflets is oversized relative to the stent and has an excessive portion (210e) freely sagging to a position away from the stent along a direction from the distal end to the proximal end, under one state, so as to allow the stent to form a more functional valve.