James K Laird

US Patent:

7892331, Feb 22, 2011

Filed:

Oct 1, 2007

Appl. No.:

11/865583

Inventors:

Robert W. Childers - Trinity FL, US
Donald D. Busby - Tampa FL, US
Michael E. Hogard - Odessa FL, US
Michael R. Prisco - Geneva IL, US
Atif M. Yardimci - Vernon Hills IL, US
James C. Laird - Grayslake IL, US

Assignee:

Baxter International Inc. - Deerfield IL
Baxter Healthcare S.A. - Glattpark (Opfikon)

International Classification:

B01D 19/00

US Classification:

96189, 96215, 96207

Abstract:

A dialysis fluid cassette includes a rigid portion defining at least one valve chamber, the rigid portion further defining an air separation chamber, the air separation chamber when in an operating position including a first sidewall and a second sidewall, a first fluid opening, a second fluid opening, and a separation wall extending from the first sidewall to the second sidewall, the separation wall having a free edge residing within the air separation chamber, the separation wall forcing the dialysis fluid to flow from one of the fluid openings around the free edge of the separation wall to the other of the openings.

US Patent:

8080091, Dec 20, 2011

Filed:

Feb 18, 2011

Appl. No.:

13/030855

Inventors:

Robert W. Childers - Trinity FL, US
Donald D. Busby - Tampa FL, US
Michael E. Hogard - Odessa FL, US
Michael R. Prisco - Geneva IL, US
Atif M. Yardimci - Vernon Hills IL, US
James C. Laird - Grayslake IL, US

Assignee:

Baxter International Inc. - Deerfield IL
Baxter Healthcare S.A. - Glattpark (Opfikon)

International Classification:

B01D 19/00

US Classification:

95252, 95262, 604 504, 96218, 96205

Abstract:

A dialysis fluid system includes an instrument including a pump actuator and a fluid heater, and a dialysis fluid cassette. The dialysis fluid cassette includes a rigid portion defining a pumping section for operation with the pump actuator and a heating section for operation with the fluid heater. The heating section includes a dialysis fluid inlet, a dialysis fluid outlet, and a dialysis fluid heating area located between the fluid inlet and the fluid outlet, the heating section further includes an air separation chamber for collecting air separated from the dialysis fluid.

US Patent:

8221529, Jul 17, 2012

Filed:

Nov 21, 2011

Appl. No.:

13/301306

Inventors:

Robert W. Childers - Trinity FL, US
Donald D. Busby - Tampa FL, US
Michael E. Hogard - Odessa FL, US
Michael R. Prisco - Geneva IL, US
Atif M. Yardimci - Vernon Hills IL, US
James C. Laird - Grayslake IL, US

Assignee:

Baxter International - Deerfield IL
Baxter Healthcare S.A. - Glattpark (Opfikon)

International Classification:

B01D 19/00

US Classification:

95260, 96215, 96207, 96189

Abstract:

In an embodiment, a dialysis fluid cassette is disclosed. The cassette includes a plurality of walls defining at least one valve chamber, a dialysis fluid inlet, a dialysis fluid outlet and a dialysis fluid pathway. The cassette further includes a baffle extending from a first one of the walls to an opposing second one of the walls. The baffle includes an end fixed to a third one of the plurality of walls and a free end. The fixed end separates the dialysis fluid inlet from the dialysis fluid outlet and the baffle and the plurality of walls are constructed and arranged such that the flow of dialysis fluid along the pathway defined in part by the baffle slows as the flow approaches the free end of the baffle.