Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Valve leaflet capturing device and system and artificial heart valve

A technology of artificial heart valve and capture device, applied in the direction of heart valve, etc., can solve the problems of valve displacement, unable to guarantee the mutual cooperation between the shape and valve stent, etc., to achieve the effect of large friction, conform to normal physiological function, and ensure the fixed position

Pending Publication Date: 2022-08-09
SHANGHAI NEWMED MEDICAL CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the material of the fishing ring is slippery, and its shape cannot be guaranteed to cooperate with the valve support stably, the fishing ring and the valve support may shift each other during the cardiac cycle, making the replacement valve unable to maintain a stable position. Fixed in place with risk of valve dislodgement

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
  • Valve leaflet capturing device and system and artificial heart valve
  • Valve leaflet capturing device and system and artificial heart valve
  • Valve leaflet capturing device and system and artificial heart valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Taking mitral valve implantation as an example, Embodiment 1 provides a valve leaflet capturing device to solve the technical problems existing in the prior art. according to Figure 1-Figure 5 , the valve leaflet capture device includes a capture ring 10, the capture ring 10 is generally helical, can be implanted at the chordae tendineae of the human mitral valve 90, and provides axial and radial forces to cooperate with the implantation of the bicuspid valve The prosthetic heart valve stent within the cusp valve 90 and its interaction can reduce the size of the native mitral valve 90, reduce mitral valve regurgitation of the native valve leaflets, and the valve leaflet capture device can be more secure. The position of the implanted artificial heart valve stent 80 is anchored to effectively avoid displacement of the artificial heart valve during myocardial movement.

[0053] according to figure 1 and figure 2 As shown, the valve leaflet capturing device includes a...

Embodiment 2

[0073] Embodiment 2 provides a valve leaflet capture system. On the basis of the structure of Embodiment 1, this embodiment also adds a delivery device for delivering the valve leaflet capture device, and a second connection is provided at the distal end of the delivery device. The second connector of the conveying device and the fishing ring 10 pass through the guide tube to the left heart predetermined position, and release the fishing ring 10.

Embodiment 3

[0075] Still taking mitral valve implantation as an example, refer to Image 6 , Embodiment 3 provides an artificial heart valve. On the basis of the structure of Embodiment 1, this embodiment also includes an artificial heart valve stent 80. As described in Embodiment 1, the artificial heart valve stent 80 is configured to The native mitral valve is expanded at 90 and interacts with the leaflet capture device described above to eliminate mitral regurgitation. The artificial heart valve stent 80 may be a balloon-expandable stent or a self-expanding stent, a sealing membrane is provided on the outer wall of the stent, and artificial valve leaflets are provided inside.

[0076] Specifically, the artificial heart valve stent 80 is fixed at the native mitral valve 90, and is specifically anchored by the functional section 12 of the fishing ring 10, the atrial section 14 of the fishing ring 10 is fixed in the left atrium 100, and the ventricular section 11 is surrounded by Mitral ...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a valve leaflet capturing device and system and an artificial heart valve.The valve leaflet capturing device comprises a capturing ring, the capturing ring is spiral and can be wound around a mitral valve / tricuspid valve chordae tendineae, and the capturing ring comprises a core body, an expansion layer and a friction layer from inside to outside; the core body is used for conforming to the change of the myocardial tissue shape; the expansion layer is made of a hydrophilic expansion material and is used for absorbing liquid and expanding after being in contact with blood; the friction layer is used for inhibiting displacement of the fishing ring relative to the mitral valve / tricuspid valve in the cardiac cycle. The valve leaflet capturing device can be stably matched with an implanted artificial heart valve support, the implanted artificial heart valve support and the implanted artificial heart valve support are stably anchored to a proper position, mutual displacement of the implanted artificial heart valve support and the implanted artificial heart valve support in the cardiac cycle is avoided, and the risk of operation failure is reduced.

Description

technical field [0001] The invention relates to the field of medical instruments for cardiac surgery, in particular to a valve leaflet capturing device, a system and an artificial heart valve. Background technique [0002] The heart includes four pumping chambers, the left and right atria and the left and right ventricles, each with valves that control its unidirectional outflow. The mitral valve is located between the left atrium and the left ventricle. When the ventricle contracts, the mitral valve tightly closes the atrioventricular orifice to prevent blood from flowing backward into the left atrium; between the right atrium and the right ventricle is the mitral valve. When the right ventricle contracts, the tricuspid valve closes by squeezing blood in the chamber, preventing backflow of blood into the right atrium. [0003] A fully functioning mitral or tricuspid valve ensures proper blood circulation during the heart cycle, but mitral regurgitation occurs when the leaf...

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
IPC IPC(8): A61F2/24
CPCA61F2/246A61F2250/0098
Inventor 周刚徐亚鹏虞奇峰秦涛
Owner SHANGHAI NEWMED MEDICAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com