Stryker Corporation

Andrew M Bentz

Christopher John Hopper

Kevin Mark Patmore

Sarah Elizabeth Mynhier

Brett M Fulton

Marko N Kostic

Gregory S Taylor

A thermal pad is adapted to be placed in physical contact with a patient and to receive temperature controlled fluid from a thermal control unit. The temperature controlled fluid circulates through the thermal pad and controls the patient's temperature. The thermal pad includes first and second sheets that are sealed together about their periphery to define a fluid chamber there between. A fluid inlet and fluid outlet are fluidly coupled to the fluid chamber. In some embodiments, a filter sheet is sandwiched between the first and second sheets and arranged such that fluid entering the fluid inlet must pass through the filter sheet before exiting out of the fluid outlet. A plurality of bonds may be included that seal the first and second sheets together at a plurality of locations. In some embodiments, a non-sheet filter is positioned within the fluid chamber and filters the circulating fluid.

Thermal system with thermal pad filters

A thermal control unit for delivering temperature-controlled fluid to one or more patient pads that are in contact with a patient is disclosed. The thermal control unit includes a fluid circuit with an inlet and outlet, a heat exchanger, a pump, and a controller. A fluid quality monitor is included in some embodiments to monitor a cleanliness of the circulating fluid and issue an alert if the cleanliness falls below a threshold. A valve may be included that is controlled by the controller based upon a measurement of the cleanliness of the circulating fluid and/or the passage of a predetermined amount of time. A second valve may also be included in some embodiments that selectively diverts fluid to an additional filter. The additional filter is used to determine if a cleaning action taken with respect to the circulating fluid was effective or not.

Thermal control system

A multiple layer composite material having fluid breach detection features provides indication of a failure in a fluid barrier. The indication of breach of fluid is provided before failure of a final layer of the composite material. The multiple layer composite material includes more than one fluid impermeable layer with an intermediate layer sealed between the fluid impermeable layers. Failure of one of the fluid impermeable layers is detected by fluid contact in the intermediate layer. The intermediate layer includes a reagent and/or detection device to indicate that the fluid has reached the intermediate layer.

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Kalamazoo, MI, United States of America

Andrew M Bentz