Mitral valve replacement device and use method thereof

A technology for mitral valve and delivery device, which is applied in the field of medical devices and can solve problems such as insufficiency and inability to solve valve closure.

Pending Publication Date: 2021-07-30
QICHEN (SHANGHAI) MEDICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this system cannot solve the problem of regurgitation caused by valve insufficiency and calcification

Method used

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  • Mitral valve replacement device and use method thereof
  • Mitral valve replacement device and use method thereof
  • Mitral valve replacement device and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as Figure 1 to Figure 6 As shown, this embodiment provides a mitral valve replacement device, including a bracket 1 for supporting the artificial valve leaflet 3 and an anchor 5 for anchoring the artificial valve leaflet 3 to the native valve leaflet, the bracket 1 The suture membrane 4 is connected by sutures, the stent 1 has a "D"-shaped structure, and is attached to the original valve; the artificial valve leaflet 3 is fixedly connected to the stent 1, and the anchor 5 is used to attach the artificial valve leaflet 3 to the original valve leaflet combine.

[0033] Specifically, the anchoring part 5 includes a fixing part 51 and an anchoring part 52, the fixing part 51 is fixedly connected with the artificial leaflet 3, the anchoring part 52 is barb-shaped, the anchoring part 52 is fixedly connected with the native valve leaflet, and the anchoring part 52 is fixedly connected with the artificial leaflet 3. Part 5 is any one or more of polymer materials and meta...

Embodiment 2

[0050] This embodiment provides a mitral valve replacement device, which differs from Embodiment 1 in that:

[0051]The anchor in this embodiment can be a threaded anchor or a spacer anchor. Compared with Embodiment 1, the form of the barb-shaped anchor is not limited, and the threaded anchor is more anchored and released after implantation. Convenient; spacer anchor, the spacer can be placed outside the apex, the length of the drawstring can be adjusted to enhance the anchoring effect.

[0052] For other specific structures and usage methods, please refer to Embodiment 1.

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PUM

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Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a mitral valve replacement device and a using method thereof. The mitral valve replacement device comprises a stent used for supporting an artificial valve leaflet and an anchoring part used for anchoring the artificial valve leaflet to an original valve leaflet, the stent is connected with a suture film through a suture line, the stent is of a D-shaped structure, and the stent is fitted with the original valve; the artificial valve leaflet is fixedly connected with the stent, and the anchoring part is used for attaching the artificial valve leaflet to the original valve leaflet; the artificial valve leaflet device with the stent is conveyed to the position of the original valve through a conveying device, and reflux caused by incomplete closing and calcification of the valve is effectively avoided; and the device can also be used for replacing the original valve, has the effect of ventricular volume reduction, improves the heart function and has important clinical significance.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a mitral valve replacement device and a use method thereof. Background technique [0002] With the gradual maturity of percutaneous aortic valve replacement technology and good prognosis, transcatheter mitral valve replacement has become an important research and development direction for the treatment of mitral regurgitation, especially for patients with severe regurgitation who are at high risk of shell surgery. At present, a variety of TMVR valves have entered the clinical trial stage and achieved good initial follow-up results. Nevertheless, there are greater innovations in various aspects such as the improvement of valves. [0003] For example, the patent document with the application number CN202011228753.X discloses a percutaneous transcatheter mitral valve replacement system, including a valve frame support, artificial valve leaflets and interventricu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
CPCA61F2/2418A61F2/2442A61F2/2463A61F2/2466A61F2/2487A61F2220/0016A61F2220/0008A61F2230/0034
Inventor 张梅慧梁玉晨
Owner QICHEN (SHANGHAI) MEDICAL EQUIP CO LTD
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