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Mitral leaflet tethering

A technology of mitral valve and chordae, applied in heart valves, medical science, surgery, etc., can solve problems such as mitral valve leakage and mitral valve leaflets not closing correctly

Inactive Publication Date: 2018-11-09
PIPELINE MEDICAL TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These problems include mitral regurgitation (MR), in which the mitral valve leaflets do not close properly, which can cause the mitral valve to leak
This technique is highly invasive with inherent risks

Method used

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  • Mitral leaflet tethering
  • Mitral leaflet tethering
  • Mitral leaflet tethering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The normal mitral valve leaflet 10 junction in the left ventricle includes the chordal appendage 12 from the free edge of the mitral valve leaflet 10 to the papillary muscle 14, as Figure 1AA shown.

[0025] Restoration of the flail leaflet ( Figure 1A Repair and reconnection of the ruptured chordae shown in 7). Another technique is transapical reattachment of the flail leaflets similar to that developed by a company called NeoChord.

[0026] A different technique is to access the right ventricle 16 through the femoral vein 18 and thread one or more catheters 20 to the apex or base of the right ventricle 16, as figure 1 shown. The entrance will be from the femoral vein 18 in the groin, up through the inferior vena cava into the right atrium 24 , through the tricuspid valve 22 to the bottom of the right ventricle 16 . Piercing through the venous or right side of the heart into the interventricular septal wall 19 to access the left ventricle 26, the catheter 20 can ...

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PUM

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Abstract

This disclosure includes apparatuses and techniques to access the right ventricle via trans-femoral vein threading a catheter or catheters to the apex or bottom of the right ventricle. Piercing through the venous or right side of the heart in the interventricular septal wall to access the left ventricle a catheter can be passed to turn upward pointing to the mitral valve. From this access point inthe left ventricle the flail mitral leaflet can be sutured and tethered pulling it back into position and reattached with a grounding anchor in the right ventricle or imbedding the anchor into the septal wall. The interventricular septal wall crossing technique could include the passing of a coaxial catheter through the first access catheter where the first access catheter could guide to direct the internal or second coaxial catheter toward the flail mitral leaflet.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of priority to U.S. Provisional Application No. 62 / 383,338, filed September 2, 2016, and U.S. Provisional Application No. 62 / 273,300, filed December 30, 2015, the entire disclosures of which are incorporated by reference All are incorporated herein for all purposes and should be considered a part of this specification. technical field [0003] The present disclosure relates generally to cardiac treatment devices and techniques, and more particularly to methods and devices for mitral valve repair. Background technique [0004] The heart consists of four heart valves that allow blood to flow in one direction through the heart's four chambers. The four valves are the tricuspid, mitral, pulmonary, and aortic valves. The four heart chambers are the right and left atria (upper chambers) and the right and left ventricles (lower chambers). [0005] The mitral valve is formed by two leafle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24A61F2/00A61B17/04
CPCA61M25/0054A61B17/0469A61B17/0401A61M25/0147A61F2/2457A61F2/2466A61B2017/00292A61B2017/0419A61F2220/0008A61F2220/0016A61B2017/0409A61B2017/048A61B2017/00876A61F2230/0091A61B2017/0441A61B2017/0427
Inventor S·F·博林R·T·拉辛斯基
Owner PIPELINE MEDICAL TECH INC
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