Tissue grasping device and related methods

By designing dynamic spacers and leaflet grasping arms, the suboptimal alignment and thromboembolism problems of existing heart valve repair devices are solved, achieving robust leaflet alignment and optimal annular tightening, thus simplifying the minimally invasive surgical procedure.

CN122350778APending Publication Date: 2026-07-10拉古维尔巴苏德 +2
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Patent Information

Application Number
CN202610600403.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2020-12-18
Filing Date
2021-03-25
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing heart valve repair devices such as MitraClip and PASCAL have problems such as suboptimal occlusion, incomplete annular tightening, and the risk of thromboembolism caused by bare metal components.

Method used

Employing an adjustable, dynamic spacer and leaflet grasping arm design, combined with remote control and automated actuation, it enables minimally invasive surgery via the femoral vein or jugular vein, achieving robust leaflet occlusion and gradual tightening of the valve annulus, thus reducing the risk of thromboembolism.

Benefits of technology

It achieves complete occlusion of the leaflets and optimal tightening of the valve annulus, reducing the risk of thromboembolism and simplifying the use and implantation process of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application discloses tissue grasping devices and related methods, particularly a clip for securing leaflets of a heart valve or venous valve, including a hub having a pair of anti-entanglement spring biased outer arms coupled to a lower end of the hub and a pair of anti-entanglement spring biased inner arms adjacent the outer arms and coupled to an upper end of the hub. A delivery catheter with a reinforcing member configured to position the valve clip proximate a target valve while the outer arms and inner arms are biased in an open position relative to one another. The delivery catheter or clip includes a suture that facilitates bailout. After the valve leaflets are positioned between the open outer arms and inner arms, the biasing force can be released to allow the clip to self-close the clip on the valve leaflets, thereby cinching and coapting the leaflets atraumatically and effectively.
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Citation Information

Patent Citations

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    US10500373B2

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    US20180185185A1

  • Tissue grasping devices and related methods

    US20190142589A1

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    US20200383782A1

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