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US 2022/0000672 A1Published application
Heat-assisted pumping systems for use in negative pressure wound therapy
AssigneeSmith & Nephew, Inc.
InventorAllan Kenneth Frazer Grugeon Hunt
Life of this patent
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Abstract
A device and method for treating a wound of a patient with negative pressure is provided. The device comprises a heat-assisted pump system. The pump system can be powered in part by heat derived from the patient. The pump system may be configured to be highly planar, light weight, and portable. The pump system may comprise a Stirling engine or a thermal acoustic engine.
Claims12
-11. (canceled)
A negative pressure wound therapy system, comprising:
- a wound dressing configured to form a seal over a wound site of a patient;
- and
- a pump system configured to be in fluid communication with the wound dressing, the pump system further comprising:
- a housing;
- a negative pressure source, wherein the negative pressure source comprises one or more bellows configured to move from a compressed position to an expanded position, wherein a vacuum pressure is generated by compressing the one or more bellows into the compressed position and the subsequent elastic recovery of the one or more compressed bellows to the expanded position generates the vacuum pressure within the wound dressing;
- and
- wherein the pump system is incorporated into the wound dressing to form a single unit.
4 more elements
Dependencies are inferred from the claim text.