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Retrievable tissue grasping devices, spacers, artificial valves and related methods

A technology for closing devices, cusp valves, in the field of venous valves and other tissue structures, repair of mitral and tricuspid valves, delivery devices for implantation of these prosthetic devices, devices for implantation of these prosthetic devices, capable of Solve problems such as complex use/operation and complex design to achieve the effect of reducing risks

Pending Publication Date: 2021-02-02
拉古维尔巴苏德 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex design and multiple components, the only FDA-approved catheter-based device (Abbott's MitraClip) is large (24Fr) and equally complex to use / manipulate

Method used

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  • Retrievable tissue grasping devices, spacers, artificial valves and related methods
  • Retrievable tissue grasping devices, spacers, artificial valves and related methods
  • Retrievable tissue grasping devices, spacers, artificial valves and related methods

Examples

Experimental program
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Embodiment approach

[0130] figure 1 with figure 2 An exemplary embodiment of a prosthetic device 1030 comprising continuous atrial leaf springs 1041 and ventricular leaf springs 1042 is shown. The atrial leaf spring 1041 and / or the ventricular leaf spring 1042 may have anchors or barbs or friction elements (an exemplary atrial friction element 1046 such as figure 1 with figure 2 shown). These anchors can be configured to be atraumatic and designed to release or restrain tissue depending on the gap between the two leaf springs 1041 , 1042 . Common interventional catheter techniques can be used to manipulate the gap between leaf spring 1041 and leaf spring 1042, such as using suture or wire to pull atrial leaf spring 1041, while using catheter shaft and / or suture / wire and / or Or customize the delivery mechanism to constrain the ventricular leaf spring 1042. figure 2 show figure 1 The perspective view of the exemplary embodiment described further illustrates a hole feature 1049 at the top...

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Abstract

A clip for immobilizing leaflets of a cardiac or venous valve includes a hub having a pair of tangle resistant spring-biased outer arms coupled to an inferior end of the hub. A pair of tangle- resistant spring-biased inner arms lies adjacent to the outer arms and is coupled to a superior end of the hub. The clip may incorporate adjustable spacers and retrievable post implantation. A delivery catheter is used to position the valve clip adjacent a target valve while the outer and inner arms are biased in an opened position relative to each other. After the valve leaflets are located between theopened outer and inner arms, the biasing forces may be released to allow the clip to self-close over the valve leaflets.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Patent Application No. 62 / 662,152, filed April 24, 2018, the entire disclosure of which is incorporated herein by reference. Background technique [0003] The present disclosure generally relates to the use of retrievable tissue grabbing devices, spacers, annulus remodeling devices, artificial valves to help seal and / or augment and / or replace the function of native heart valves to prevent or reduce regurgitation therethrough Medical devices and related methods, as well as delivery devices and related methods for implanting these prosthetic devices. More particularly, the present invention relates to methods and devices for repairing mitral and tricuspid valves, venous valves, and other tissue structures through minimally invasive and other procedures. [0004] The natural heart valves (ie, the aortic, pulmonary, tricuspid and mitral valves) play a key role in ensu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
CPCA61F2/246A61F2/2466A61F2/2463A61F2210/0014A61F2220/0008A61F2250/0003
Inventor 拉古维尔·巴苏德史利·克里希纳·巴苏德
Owner 拉古维尔巴苏德