Method of making a prosthetic valve and valve obtained therewith
US10583003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2015 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | May 30, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0075
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present relates to a method of making a prosthetic valve that can take a first form wherein the valve is open and a second form wherein the valve is closed, the valve comprising a leaflet, a supporting element, and a stent to which the leaflet and supporting element are attached, the leaflet having a free margin that can move between a first position wherein the valve takes the first form and a second position wherein the valve takes the second form, the method comprising:—providing a woven textile structure,—forming the leaflet and the supporting element from this textile structure, such that a selvedge of the textile structure forms the free margin of the leaflet, and—forming the valve therewith, wherein the textile structure has a single layer thickness of between 40 to 150 μm and comprises yarn comprising polymeric filaments, the yarn having a linear density of less than 120 dtex and an elongation at break of 10% or less, and wherein the leaflet is attached to the stent by making stitches through at least 2 layers of the woven textile structure to form a commissure. The woven fabric used method is thin and flexible, and allows stitching through multiple layers to result in …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.