Method and device for percutaneous left ventricular reconstruction

Patent metadata

Field	Value
Publication number	US-9526618-B2
Application number	US-201514839500-A
Country	US
Kind code	B2
Filing date	Aug 28, 2015
Priority date	Oct 13, 2004
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A method for reducing left ventricular volume, which comprises identifying infarcted tissue during open chest surgery; reducing left ventricle volume while preserving the ventricular apex; and realigning the ventricular apex, such that the realigning step comprises closing the lower or apical portion of said ventricle to achieve appropriate functional contractile geometry of said ventricle in a dyskinetic ventricle of a heart.

First claim

What is claimed is:

1. A method for reducing a chamber volume in a heart comprising:
applying suction to an epicardium of said chamber to bring opposing walls of said chamber adjacent one another and thereby reduce a size of said chamber, said opposing walls including a first wall and a second wall; and
penetrating a needle across said first and second walls of said chamber with said first wall adjacent said second wall;
wherein said suction is applied by engaging the epicardium with a suction device so that the epicardium is drawn into the suction device.

2. The method of claim 1 , wherein the epicardium is drawn into the suction device so that inner surfaces of said first wall and second wall are adjacent one another.

3. The method of claim 1 , further comprising sensing infarcted tissue of the first wall or second wall.

4. The method of claim 1 , further comprising:
clamping said first and second walls; and
securing a clamped portion of said first and second walls.

5. The method of claim 4 , further comprising applying a patch on the clamped portion.

6. The method of claim 1 , further comprising:
identifying infarcted tissue;
reducing a volume of said chamber while preserving an apex of the chamber; and
realigning the apex of the chamber;
wherein said realigning step comprises closing of a lower or apical portion of said chamber to achieve appropriate functional contractile geometry of said chamber.

7. The method of claim 6 , wherein the step of realigning the apex of the chamber further comprises the steps of altering the geometry of the chamber and decreasing wall tension.

8. The method of claim 1 , further comprising applying stitching to said first and second walls of said chamber to affix said first and second walls together.

9. The method of claim 3 , wherein the step of sensing the infarcted tissue is performed by a procedure selected from the group consisting of: pacing, angiography, echocardiography, and tissue Doppler.

10. The method of claim 1 , wherein said method is a minimally invasive surgery.

Assignees

• Bioventrix Inc

Inventors

• Chin Sing-Fatt
• Bertolero Arthur
• Annest Lon S

Classifications

• A61B8/12

  in body cavities or body tracts, e.g. by using catheters · CPC title

• A61B2017/00579

  Barbed implements · CPC title

• A61B2017/0419

  H-fasteners · CPC title

• A61B2017/00247

  Making holes in the wall of the heart, e.g. laser Myocardial revascularization · CPC title

• A61B2017/00243

  cardiac · CPC title