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Transapical deliverry system for heart valves

A heart valve and delivery technology, applied in heart valves, balloon catheters, medical science, etc.

Active Publication Date: 2012-06-13
EDWARDS LIFESCIENCES CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the proximal end of the stent is not released from the delivery system until accurate placement is confirmed by fluoroscopy, once released the self-expanding stent may still jump

Method used

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  • Transapical deliverry system for heart valves
  • Transapical deliverry system for heart valves
  • Transapical deliverry system for heart valves

Examples

Experimental program
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Effect test

Embodiment Construction

[0044] Detailed description of the preferred embodiment

[0045] The heart is a slightly conical hollow muscular organ; it lies in the middle mediastinum between the lungs and is enclosed in the pericardium. The heart sits obliquely in the chest behind the sternal body and adjacent parts of the soft ribs, and projects more into the left half of the ribcage than the right, so that approximately one-third is to the right of the midplane and two-thirds Located to the left of the center face. The heart is subdivided into right and left halves by a septum, and a constriction subdivides each half of the organ into two chambers, the upper chamber being called the atrium and the lower chamber being called the ventricle. The heart is thus composed of four chambers; the right atrium, left atrium, right ventricle, and left ventricle.

[0046] Such as figure 1 As seen, the left ventricular apical LVA points down, forward, and to the left (from the patient's perspective). The point is ...

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PUM

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Abstract

A delivery system and method for delivering a prosthetic heart valve to the aortic valve annulus. The system includes a delivery catheter having a steering mechanism thereon for delivering a balloon-expandable prosthetic heart valve to the aortic annulus in an antegrade fashion through an introducer passing into the left ventricle through its apex. The introducer may have a more floppy distal section than a proximal section to reduce trauma to the heart wall while preserving good operating field stability. The delivery catheter includes a deflecting segment just proximal to a distal balloon to facilitate positioning of the prosthetic heart valve in the proper orientation within the aortic annulus. A trigger in a catheter handle may be coupled to a deflection wire that actuates the deflecting segment, while a slider in the handle controls retraction of a valve pusher.; The prosthetic heart valve may be installed over the existing calcified leaflets, and a pre-dilation valvuloplasty procedure may also be utilized.

Description

[0001] related application [0002] This application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Application No. 61 / 225,510, filed July 14, 2009. technical field [0003] The present invention relates to methods and systems for delivering prosthetic valves to the heart. More specifically, the present invention relates to methods and devices for surgically replacing heart valves without opening the chest cavity and with or without bypassing the patient, the latter being referred to as "off-pump surgery." pump)". Background technique [0004] Heart valve replacement may be indicated when the natural heart valve narrows, commonly referred to as stenosis, or when the natural valve leaks or regurgitates, such as when the leaflets become calcified. When replacing a valve, the natural valve can be removed and replaced with a biological or mechanical valve. Mechanical valves require lifelong anticoagulant drugs to stop blood clots from forming, and the ticking of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10A61M25/01A61F2/24A61F2/958
CPCA61M25/0136A61F2220/0016A61F2/2418A61M25/0147A61F2/2433
Inventor T·S·吉米尼斯W·李M·德赫达斯坦K·伊
Owner EDWARDS LIFESCIENCES CORP
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