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US 11,896,464 B2Granted
Method to dynamically measure apposition and patient limb movement in a negative pressure closed incision dressing
AssigneeKCI Licensing, Inc.
InventorsChristopher Brian Locke, Justin Alexander Long, Timothy Mark Robinson
Life of this patent
Estimating the term…
Abstract
A negative pressure wound therapy system includes at least one sensor coupled to a wound dressing for a wound of a patient, and a control circuit. The at least one sensor is configured to output an indication of a displacement of the wound dressing. The control circuit is configured to receive the indication of the displacement of the wound dressing, calculate a therapy parameter corresponding to the indication of the displacement, and output the therapy parameter.
Claims17
A negative pressure wound therapy system, comprising:
- a wound dressing for a wound of a patient;
- a first sensor configured to be coupled to the wound dressing, the first sensor configured to output an indication of a displacement in a first direction of the wound dressing;
- a second sensor configured to be coupled to the wound dressing, the second sensor configured to output an indication of a displacement in a second direction of the wound dressing, the second direction perpendicular to the first direction;
- wherein the wound dressing is configured to extend a first length along the first direction and a second length greater than the first length along the second direction;
- and
- a control circuit configured to:
- receive the indication of the displacement in the first direction and the indication of displacement in the second direction of the wound dressing,
- calculate a therapy parameter including at least an appositional force of the wound dressing corresponding to the indication of the displacement in the first direction and a longitudinal movement of the wound dressing corresponding to the indication of displacement in the second direction, and
- output the therapy parameter.
6 more elements
A method, comprising:
- receiving an indication of a displacement in a first direction of a wound dressing for a wound of a patient from a first electro-active polymer (EAP) sensor;
- receiving an indication of a displacement in a second direction of a wound dressing from a second EAP sensor, the second direction perpendicular to the first direction, the first EAP sensor extending along a first length of the wound dressing along the first direction and the second EAP sensor extending along a second length of the wound dressing along the second direction that is greater than the first length, the first EAP sensor and the second EAP sensor configured to output the indication based on a change in capacitance of the first EAP sensor and the second EAP sensor corresponding to the displacement in the first direction and the displacement in the second direction;
- calculating a therapy parameter including at least an appositional force of the wound dressing corresponding to the indication of the displacement in the first direction and a longitudinal movement of the wound dressing corresponding to the indication of displacement in the second direction;
- and
- outputting the therapy parameter.
2 more elements
Dependencies are inferred from the claim text.