David G Kuhn

US Patent:

7021148, Apr 4, 2006

Filed:

Apr 30, 2002

Appl. No.:

10/136411

Inventors:

David Kuhn - Lake Bluff IL, US
Jason Cartwright - Libertyville IL, US
Ed Chim - Vernon Hills IL, US
Jan Jensen - Waukegan IL, US
Michael R. Prisco - Geneva IL, US
Jerry Ripley - McHenry IL, US

Assignee:

Baxter International Inc. - Deerfield IL
Baxter Healthcare S.A. - Zurich

International Classification:

G01L 7/08

US Classification:

73715, 73714, 73723

Abstract:

The present invention lessens the amount of air entering between mating membranes of a pressure sensor. The pressure sensor of the present invention includes a transducer portion and separate patient or medical fluid transfer portion or dome. The transducer portion is reusable and the dome is disposable. The dome defines a fluid flow chamber that is bounded on one side by a dome membrane. Likewise, the transducer is mounted inside a housing, wherein the housing defines a surface that holds a transducer membrane. The two membranes mate when the dome is fitted onto the transducer housing. The pressure sensor enhances the seal between the mated membranes by creating higher localized contact stresses. The pressure sensor also reduces the amount of gas that permeates from the fluid chamber across the dome membrane and between the interface by making the dome membrane from a material having a low vapor transmission.

US Patent:

20040254513, Dec 16, 2004

Filed:

Jan 19, 2004

Appl. No.:

10/760849

Inventors:

Sherwin Shang - Vernon Hills IL, US
Ramesh Wariar - Blaine MN, US
Angel Lasso - Tampa FL, US
George Lamberson - New Port Richey FL, US
Dan Marcquenski - Lake Zurich IL, US
Jan Jensen - Waukegan IL, US
David Kuhn - Lake Bluff IL, US
Raf Castellanos - Roselle IL, US

International Classification:

A61M037/00
G01N027/12
C02F001/00
C02F001/44

US Classification:

604/005010, 210/646000, 210/746000, 422/082020

Abstract:

Conductive materials and devices, apparatuses, systems and methods that employ same. The conductive material can include a conductive polymer material that can be utilized to monitor one or a combination of conditions during patient therapy, such as patient access, solution compounding and the like. This can facilitate the safe and effective administration of patient therapy, such as dialysis therapy.

US Patent:

20070117010, May 24, 2007

Filed:

Jan 23, 2007

Appl. No.:

11/626241

Inventors:

Sherwin Shang - Vernon Hills IL, US
Ramesh Wariar - Blaine MN, US
Angel Lasso - Tampa FL, US
George Lamberson - New Port Richey FL, US
Dan Marcquenski - Lake Zurich IL, US
Jan Jensen - Waukegan IL, US
David Kuhn - Lake Bluff IL, US
Raf Castellanos - Roselle IL, US

Assignee:

Baxter International Inc. - Deerfield IL
Baxter Healthcare S.A. - Zurich

International Classification:

H01M 2/00
H01B 1/12
H01B 1/00

US Classification:

429163000, 252500000

Abstract:

A coupler includes a conductive polymer material that is so constructed and arranged to join tubing, wherein the conductive polymer material includes a conductive polymer component selected from the group consisting of polyaniline, polypyrrole, polythiophenes, polyethylenedioxythiophene, poly(p-phenylene vinylene) and mixtures thereof.

US Patent:

20110264042, Oct 27, 2011

Filed:

Jun 30, 2011

Appl. No.:

13/173828

Inventors:

Sherwin Shang - Vernon Hills IL, US
Ramesh Wariar - Blaine MN, US
Angel Lasso - Tampa FL, US
George Lamberson - New Port Richey FL, US
Jan Jensen - Waukegan IL, US
David Kuhn - Lake Bluff IL, US
Raf Castellanos - Roselle IL, US

Assignee:

BAXTER HEALTHCARE S.A. - Glattpark (Opfikon)
BAXTER INTERNATIONAL INC. - Deerfield IL

International Classification:

A61M 5/50
A61M 1/14

US Classification:

604111, 604174

Abstract:

A coupler includes a conductive polymer material that is so constructed and arranged to join tubing, wherein the conductive polymer material includes a conductive polymer component selected from the group consisting of polyaniline, polypyrrole, polythiophenes, polyethylenedioxythiophene, poly(p-phenylene vinylene) and mixtures thereof.