Jason K Stewart

US Patent:

6475228, Nov 5, 2002

Filed:

Feb 15, 2000

Appl. No.:

09/504131

Inventors:

Robert Mesaros - Bozeman MT
Michael E. Hovanes - Redmond WA
William Clem - Bozeman MT
Cory Williamson - Bozeman MT
Martin Albini - Bozeman MT
Darius Eghbal - Bozeman MT
Erik Green - Bozeman MT
Jason Stewart - Bozeman MT

Assignee:

Instrumed, Inc. - Woodinville WA

International Classification:

A61B 1712

US Classification:

606202

Abstract:

A system and method of controlling the pressure within a surgical tourniquet so as selectively to occlude blood flow within a portion of a limb of a patient, wherein the pressure within an inflatable cuff surrounding a portion of a limb of a patient is changed by automatically opening a first valve connected to a controller and located within a first conduit between an inflatable bladder and the inflatable cuff, when the pressure in the inflatable cuff is different from that in the inflatable bladder. In another aspect, a system and method of controlling the pressure within a surgical tourniquet so as selectively to occlude blood flow within a portion of a limb of a patient within five seconds. In another aspect, a system and method of detecting a leak in a surgical tourniquet. In another aspect, a surgical tourniquet that, from an inflated state, may enter a deflated state, a set state, a default display state, or an off state.

US Patent:

60510161, Apr 18, 2000

Filed:

Mar 29, 1999

Appl. No.:

9/280312

Inventors:

Robert Mesaros - Bozeman MT
Michael E. Hovanes - Redmond WA
William Clem - Bozeman MT
Cory Williamson - Bozeman MT
Martin Albini - Bozeman MT
Darius Eghbal - Bozeman MT
Erik Green - Bozeman MT
Jason Stewart - Bozeman MT

Assignee:

Instrumed, Inc. - Woodinville WA

International Classification:

A61B 1700

US Classification:

606202

Abstract:

A system and method of controlling the pressure within a surgical tourniquet so as selectively to occlude blood flow within a portion of a limb of a patient, wherein the pressure within an inflatable cuff surrounding a portion of a limb of a patient is changed by automatically opening a first valve connected to a controller and located within a first conduit between an inflatable bladder and the inflatable cuff, when the pressure in the inflatable cuff is different from that in the inflatable bladder. In another aspect, a system and method of controlling the pressure within a surgical tourniquet so as selectively to occlude blood flow within a portion of a limb of a patient within five seconds. In another aspect, a system and method of detecting a leak in a surgical tourniquet. In another aspect, a surgical tourniquet that, from an inflated state, may enter a deflated state, a set state, a default display state, or an off state.