Unlock instant, AI-driven research and patent intelligence for your innovation.

flexible commissure frame

A frame and frame component technology, applied in the field of artificial heart valves and stents used together with artificial heart valves

Active Publication Date: 2020-01-17
EDWARDS LIFESCIENCES CORP
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, having a large number of axial struts can come at the expense of valve flexibility

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • flexible commissure frame
  • flexible commissure frame
  • flexible commissure frame

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Disclosed herein are prosthetic heart valves and stents for use with such valves, which stents are capable of a high degree of flexibility. Such flexibility may be beneficial for delivery to the valve annulus (such as for crimping / expanding a transcatheter heart valve (THV)) and / or for accommodating valve motion during the cardiac cycle. In particular embodiments, there are no axial struts at strategically selected locations around the perimeter of the frame, resulting in improved flexibility. In various embodiments, commissures are flexible by increasing the distance between each commissure and the nearest axial frame member (rather than any support members located at the commissure, such as commissure supports or window frame members). The distance between them is increased. The frame may have one or more rows of circumferentially extending struts with three consecutive angled struts between one or more pairs of axial supports. In some embodiments, the one or more r...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a prosthetic device and frame for implantation at the annulus of a heart valve comprising an annular frame (having an inflow end and an outflow end) and a plurality of shafts bridging two rows of circumferentially extending angled struts to frame members. The axial frame member may comprise a plurality of axially extending leaflet attachment members and a plurality of axial struts in a 1:1 ratio. Along each of the two rows, the frame may have at least three angled struts between adjacent axial frame members.

Description

technical field [0001] The present disclosure relates to the field of prosthetic heart valves, stents for use with prosthetic heart valves, and to methods for delivering prosthetic heart valves. Background technique [0002] Existing frames for prosthetic heart valves typically include multiple rows of angled struts and multiple axial frame members spaced around the perimeter of the frame. The plurality of axial frame members may include a plurality of leaflet attachment members (for attachment to the commissures of the supported valve structure) and a number of axially oriented struts extending between rows of angled struts. The frame typically has three or more axially oriented struts for each leaflet attachment member, and generally no more than two angled struts between adjacent struts or other axial frame members. In fact, having a large number of axially oriented struts is believed to be necessary to maintain the structural stability of the stent and / or valve. Unfort...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/24
CPCA61F2/2418
Inventor T·S·利维
Owner EDWARDS LIFESCIENCES CORP