Stephen A Little

US Patent:

60558725, May 2, 2000

Filed:

Feb 27, 1998

Appl. No.:

9/031823

Inventors:

Stephen R. Little - Parkland FL

Assignee:

Jensen Wert Products - Coral Springs FL

International Classification:

G01N 112

US Classification:

7386463

Abstract:

A push-pull valve for gas sampling is formed by assembling a body including a receptacle having a bore and a plug having a nose which seats in the bore. The plug has a through bore with a shoulder at its lower end serving as a lower stop and defining a hole at the bottom of the through bore. A hollow stem slides in the through bore, between an extended, closed position, and a retracted, open position. The stem has ports set above the foot of the stem a distance such that, in an upper position of the stem, the port is blocked by an O-ring, and in a lower position of the stem, gas can flow through the stem, the ports, an annular space around the stem, and out through the hole at the bottom of the through bore.

US Patent:

20190240018, Aug 8, 2019

Filed:

Jul 6, 2017

Appl. No.:

16/313771

Inventors:

- Houston TX, US
Stephen Rees Igo - League City TX, US
Stephen H. Little - Houston TX, US

International Classification:

A61F 2/24

Abstract:

A prosthetic mitral valve comprising a flexible frame comprising an annular base and a pair of diametrically-opposed struts extending downwardly from the annular base; a sewing ring mounted to the annular base for securing the prosthetic mitral valve in an annulus vacated by a native mitral valve; a pair of leaflets mounted to the annular base and the pair of diametrically-opposed struts; and a pair of coupling sutures configured to extend from the sewing ring, down the pair of diametrically-opposed struts, and across a left ventricle for securing the prosthetic mitral valve to papillary muscles.