Jeanne Pierson

US Patent:

D2992698, Jan 3, 1989

Filed:

Feb 6, 1986

Appl. No.:

6/826820

Inventors:

Jeanne S. Pierson - El Toro CA
Wendell V. Ebling - Tustin CA
Jack W. Brown - Santa Ana CA
Peter N. Cassimatis - Costa Mesa CA

Assignee:

Gish Biomedical, Inc. - Santa Ana CA

US Classification:

D24 21

US Patent:

44937059, Jan 15, 1985

Filed:

Aug 10, 1982

Appl. No.:

6/406962

Inventors:

Lucas S. Gordon - Irvine CA
Jeanne Pierson - Irvine CA

Assignee:

Bentley Laboratories, Inc. - Los Angeles CA

International Classification:

A61M 103
B01D 1902

US Classification:

604122

Abstract:

A yoke shaped collapsible blood reservoir having first and second yoke legs joined by a yoke midsection. A filter element is positioned in the yoke midsection and across the blood flow path between an inlet at the base of the first yoke leg and a blood outlet at the base of the second yoke leg. An angular blood inlet and a gradual increase in cross-sectional area from the blood inlet to the yoke midsection decreases turbulence and assists in bubble separation.

US Patent:

51279002, Jul 7, 1992

Filed:

Dec 19, 1989

Appl. No.:

7/452964

Inventors:

David Schickling - Laguna Beach CA
Jeanne Pierson - Irvine CA

Assignee:

Medtronic Inc. - Minneapolis MN

International Classification:

A61M 3700

US Classification:

604 4

Abstract:

A cardiotomy reservoir which employs an inner wall structure which defines a central receiving chamber. The receiving chamber wall is tapered inwardly to provide a smooth blood flow along an arcuate imperforate portion which extends from the top to the bottom thereof into the blood receiving chamber. Apertures in another arcuate portion of the wall member allow fluid communication between the receiving chamber and the blood treatment element. Blood flow directing means direct blood entering the inlet port of the device downward toward the bottom of the receiving chamber along the imperforate portion of the inner wall so that the inflowing blood does not splash and has low turbulence.