Thomas Roy Pate

US Patent:

8167593, May 1, 2012

Filed:

Apr 16, 2009

Appl. No.:

12/425087

Inventors:

Jeffrey R. Gohean - Austin TX, US
Thomas D. Pate - Austin TX, US
Raul G. Longoria - Austin TX, US
Richard Smalling - Houston TX, US

Assignee:

The Board of Regents of the University of Texas System - Austin TX

International Classification:

F04B 49/00

US Classification:

417505, 417 53, 417519, 417417

Abstract:

Systems and methods for pumping fluid comprising a pumping chamber, a pump inlet, a pump outlet, a valving mechanism, and a drive piston or pumping chamber wall including a deformable surface configured to provide elastohydrodynamic lubrication during operation.

US Patent:

8366401, Feb 5, 2013

Filed:

Apr 16, 2009

Appl. No.:

12/425060

Inventors:

Thomas D. Pate - Austin TX, US
Raul G. Longoria - Austin TX, US
Richard Smalling - Houston TX, US
Jeffrey R. Gohean - Austin TX, US

Assignee:

The Board of Regents of The University of Texas Systems - Austin TX

International Classification:

F04B 17/04

US Classification:

417 53, 4174101

Abstract:

Systems and methods including a valve piston in a pumping chamber. The pumping chamber may include a pump inlet and a pump outlet in fluid communication with the pumping chamber. The valve piston may be configured to rotate between a first position within the pumping chamber and a second position outside of the pumping chamber.

US Patent:

8386040, Feb 26, 2013

Filed:

Apr 16, 2009

Appl. No.:

12/425076

Inventors:

Thomas D. Pate - Austin TX, US
Raul G. Longoria - Austin TX, US
Richard Smalling - Houston TX, US
Jeffrey R. Gohean - Austin TX, US

Assignee:

The Board of Regents of the University of Texas Systems - Austin TX

International Classification:

A61N 1/362

US Classification:

607 16, 417415

Abstract:

Systems and methods for providing a variable pumping stroke from a pump comprising a pumping chamber, a pump inlet, a pump outlet, a valving mechanism, and a drive piston. In one embodiment, the pump inlet is in fluid communication with the pumping chamber regardless of the location of the drive piston within the pumping chamber, and the pump outlet is similarly in fluid communication with the pumping chamber regardless of the location of the drive piston within the pumping chamber.

US Patent:

8568113, Oct 29, 2013

Filed:

Jan 6, 2011

Appl. No.:

12/985715

Inventors:

Thomas D. Pate - Austin TX, US
Raul G. Longoria - Austin TX, US
Richard Smalling - Houston TX, US
Jeffrey R. Gohean - Austin TX, US

Assignee:

The Board of Regents of the University of Texas Systems - Austin TX

International Classification:

F04B 17/00
F04B 35/04

US Classification:

417420, 4174103, 4174101

Abstract:

Systems and methods including a motor or electromagnets to control the movement of one or more pistons in a pumping chamber. The pumping chamber may include a pump inlet and a pump outlet in fluid communication with the pumping chamber. Surfaces on a piston or pumping chamber may include hydrodynamic bearing surfaces.

US Patent:

20080008609, Jan 10, 2008

Filed:

Jul 5, 2007

Appl. No.:

11/773740

Inventors:

Thomas Pate - Austin TX, US
Raul Longoria - Austin TX, US
Richard Smalling - Houston TX, US
Jeffrey Gohean - Austin TX, US

International Classification:

F04B 17/03

US Classification:

417415000

Abstract:

Systems and methods including a motor or electromagnets to control the movement of one or more pistons in a pumping chamber. The pumping chamber may include a pump inlet and a pump outlet in fluid communication with the pumping chamber. Surfaces on a piston or pumping chamber may include hydrodynamic bearing surfaces.

US Patent:

20100268333, Oct 21, 2010

Filed:

Apr 16, 2009

Appl. No.:

12/425042

Inventors:

Jeffrey R. Gohean - Austin TX, US
Thomas D. Pate - Austin TX, US
Raul G. Longoria - Austin TX, US
Richard Smalling - Houston TX, US

International Classification:

A61M 1/10
F04B 49/00

US Classification:

623 314, 417 441

Abstract:

Systems and methods to control the movement of one or more pistons in a pumping chamber. The systems and methods may include a sensor to sense an external variable provide an output signal. The systems and methods may also include a microprocessor configured to receive the output signal from the sensor and to change an operating parameter of the pump in response to the output signal.

US Patent:

20120059398, Mar 8, 2012

Filed:

Sep 1, 2011

Appl. No.:

13/224011

Inventors:

Thomas D. Pate - Austin TX, US
Jeffrey R. Gohean - Austin TX, US
Raul G. Longoria - Austin TX, US
Richard W. Smalling - Houston TX, US

International Classification:

A61B 17/11

US Classification:

606153

Abstract:

A magnetic coupling for connecting a cannula to the apex of a ventricle comprising a first member having a first orifice, a first magnetic material attached to the first member, a means for attaching a cannula to the first member, a second member having a second orifice, a second magnetic material attached to the second member, a means for attaching the second member to a ventricle, so that when the first magnet is placed in proximity to the second magnet the first member and second member are held substantially concentric by magnetic force to allow for the communication of fluid between the first and second orifices.

US Patent:

20140058190, Feb 27, 2014

Filed:

Jun 27, 2013

Appl. No.:

13/929501

Inventors:

Jeffrey R. Gohean - Austin TX, US
Thomas D. Pate - Austin TX, US
Raul G. Longoria - Austin TX, US
Richard Smalling - Houston, TX

Assignee:

The Board of Regents of the University of Texas System - Austin TX

International Classification:

A61M 1/10
F04B 35/04

US Classification:

600 17, 417415, 417 53, 417338, 417 441, 417437, 4174101, 600 16

Abstract:

Systems and methods including a motor or electromagnets to control the movement of one or more pistons in a pumping chamber. The pumping chamber may include a pump inlet and a pump outlet in fluid communication with the pumping chamber. Surfaces on a piston or pumping chamber may include hydrodynamic bearing surfaces.