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Heart valve deployment assist device

A heart valve and valve technology, applied in the field of auxiliary devices, can solve problems such as valve displacement, incorrect valve orientation, and difficulty in valve placement.

Pending Publication Date: 2022-03-01
EDWARDS LIFESCIENCES CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aggressive surgeons may also have difficulty forcing the largest possible diameter sizer into the valve annulus / LVOT to determine the valve size to implant
Challenges include, for example, difficulty with valve placement, valve ejection, valve displacement when the implant sutures are tightened, or incorrect orientation of the valve after the sutures are tightened

Method used

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Examples

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Embodiment Construction

[0038] As mentioned above, a promising current technology for heart valve replacement is a hybrid valve with a non-expandable valve member and an expandable stent over implanted in a short time frame. The hybrid valve is delivered through a direct access port that is introduced through the chest cavity.

[0039] 1 shows a snapshot during the delivery of a prior art heart valve 20 to the aortic annulus AA using a valve delivery tube or handle 10 . As will be seen, the valve delivery handle 10 has a distal coupler 12 and a proximal coupler 14 . For orientation purposes, heart valve 20 has a downward inflow end and an upward outflow end, and the terms proximal and distal are defined from the perspective of the surgeon delivering the valve inflow end first. Thus, proximal is synonymous with upward or outflow, and distal is synonymous with downward or inflow.

[0040] The illustrated prosthetic heart valve 20 is considered a hybrid because it has a non-expandable, non-collapsibl...

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Abstract

The present application discloses a method of implanting a hybrid prosthetic aortic heart valve having a valve member and a generally tubular plastically expandable anchoring skirt attached to and protruding from the valve member in an inflow direction. The anchor skirt has an inflow end having an initial conical shape with a lower end (inflow end / leading end) defining a smaller aperture. For implantation, the heart valve is advanced with the anchor skirt at the forward end and the final balloon catheter expands within the anchor skirt to force the anchor skirt into contact with the subvalvular aspect of the aortic valve annulus. To facilitate advancement of the heart valve, the anchor skirt is further crimped upon removal from a storage container, such as a canister. The crimping is performed after removal from the storage container to maintain an initial fabricated orifice diameter at the inflow end / leading end of the anchor skirt for passage through a delivery adapter used in the delivery process.

Description

[0001] related application [0002] This application claims the benefit of U.S. Patent Application Serial No. 62 / 883,013, filed August 5, 2019, the contents of which are expressly incorporated herein for all purposes. technical field [0003] The present disclosure relates generally to assist devices for use in implanting a prosthetic heart valve, and more particularly to an assist device for adjusting the delivery profile of a prosthetic heart valve. Background technique [0004] Heart valve disease remains an important cause of morbidity and mortality, resulting from a variety of conditions including rheumatic fever and birth defects. Currently, the mainstay of treatment for aortic valve disease is valve replacement. Worldwide, approximately 300,000 heart valve replacement procedures are performed each year, and approximately half of these patients receive mechanical heart valves made of rigid synthetic materials. The remaining patients received bioprosthetic heart valve...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61F2/243A61F2/2409A61F2/2427A61F2/2418A61F2/9525G09B23/32G09B23/288G09B23/30
Inventor R·皮恩特
Owner EDWARDS LIFESCIENCES CORP
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