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Title: Curved butterfly bileaflet prosthetic cardiac valve

Abstract

An annular valve body having a central passageway for the flow of blood therethrough with two curved leaflets each of which is pivotally supported on an accentric positioned axis in the central passageway for moving between a closed position and an open position. The leaflets are curved in a plane normal to the eccentric axis and positioned with the convex side of the leaflets facing each other when the leaflets are in the open position. Various parameters such as the curvature of the leaflets, the location of the eccentric axis, and the maximum opening angle of the leaflets are optimized according to the following performance criteria: maximize the minimum peak velocity through the valve, maximize the net stroke volume, and minimize the mean forward pressure difference, thereby reducing thrombosis and improving the hemodynamic performance.

Inventors:
 [1];  [2]
  1. 185 Hillside Ave., Chatham, NJ 07928
  2. 186 Harrard Dr., Hartsdale, NY 10530
Issue Date:
Research Org.:
New York Univ. (NYU), NY (United States)
OSTI Identifier:
867883
Patent Number(s):
5026391
Application Number:
07/434,621
Assignee:
McQueen, David M. (185 Hillside Ave., Chatham, NJ 07928);Peskin, Charles S. (186 Harrard Dr., Hartsdale, NY 10530)
DOE Contract Number:  
AC02-76ER03077
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
curved; butterfly; bileaflet; prosthetic; cardiac; valve; annular; central; passageway; flow; blood; therethrough; leaflets; pivotally; supported; accentric; positioned; axis; moving; closed; position; plane; normal; eccentric; convex; facing; various; parameters; curvature; location; maximum; angle; optimized; according; following; performance; criteria; maximize; minimum; peak; velocity; net; stroke; volume; minimize; mean; forward; pressure; difference; reducing; thrombosis; improving; hemodynamic; central passage; central passageway; pivotally supported; plane normal; closed position; pressure difference; optimized according; annular valve; /623/137/

Citation Formats

McQueen, David M, and Peskin, Charles S. Curved butterfly bileaflet prosthetic cardiac valve. United States: N. p., 1991. Web.
McQueen, David M, & Peskin, Charles S. Curved butterfly bileaflet prosthetic cardiac valve. United States.
McQueen, David M, and Peskin, Charles S. Tue . "Curved butterfly bileaflet prosthetic cardiac valve". United States. https://www.osti.gov/servlets/purl/867883.
@article{osti_867883,
title = {Curved butterfly bileaflet prosthetic cardiac valve},
author = {McQueen, David M and Peskin, Charles S},
abstractNote = {An annular valve body having a central passageway for the flow of blood therethrough with two curved leaflets each of which is pivotally supported on an accentric positioned axis in the central passageway for moving between a closed position and an open position. The leaflets are curved in a plane normal to the eccentric axis and positioned with the convex side of the leaflets facing each other when the leaflets are in the open position. Various parameters such as the curvature of the leaflets, the location of the eccentric axis, and the maximum opening angle of the leaflets are optimized according to the following performance criteria: maximize the minimum peak velocity through the valve, maximize the net stroke volume, and minimize the mean forward pressure difference, thereby reducing thrombosis and improving the hemodynamic performance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {6}
}

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