NEGATIVE PRESSURE WOUND THERAPY APPARATUS AND METHODS
First Claim
1. A pump system configured for negative pressure wound therapy, the pump system comprising:
- a pump assembly configured to provide a negative pressure, via a flow path, to a wound dressing configured to be positioned over a wound, the flow path configured to fluidically connect the pump system to the wound dressing;
a sensor configured to measure a pressure in the flow path; and
a controller configured to control operation of the pump system, the controller further configured to;
measure a first pressure value in the flow path at a first time;
measure a second pressure value in the flow path at a second time;
calculate a first rate of pressure change using the first and second pressure values; and
provide an indication that the wound dressing is full in response to determining that the calculated first rate of pressure change satisfies a threshold rate of change.
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0 Petitions
Accused Products
Abstract
Systems and methods for controlling a pump system for use in negative pressure wound therapy are described herein. In some embodiments, a method for controlling a pump system includes causing provision of negative pressure, via a flow path, to a wound dressing configured to be positioned over a wound, the flow path configured to fluidically connect the pump system to the wound dressing, measuring a first pressure value in the flow path at a first time, measuring a second pressure value in the flow path at a second time, calculating a first rate of pressure change using the first and second pressure values, and in response to determining that the calculated first rate of pressure change satisfies a threshold rate of change, providing an indication that the wound dressing is full, wherein the method is performed under control of a controller of the pump system.
14 Citations
40 Claims
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1. A pump system configured for negative pressure wound therapy, the pump system comprising:
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a pump assembly configured to provide a negative pressure, via a flow path, to a wound dressing configured to be positioned over a wound, the flow path configured to fluidically connect the pump system to the wound dressing; a sensor configured to measure a pressure in the flow path; and a controller configured to control operation of the pump system, the controller further configured to; measure a first pressure value in the flow path at a first time; measure a second pressure value in the flow path at a second time; calculate a first rate of pressure change using the first and second pressure values; and provide an indication that the wound dressing is full in response to determining that the calculated first rate of pressure change satisfies a threshold rate of change. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20-39. -39. (canceled)
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40. A method for controlling a pump system configured for negative pressure wound therapy, the method comprising:
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causing provision of negative pressure, via a flow path, to a wound dressing configured to be positioned over a wound, the flow path configured to fluidically connect the pump system to the wound dressing; measuring a first pressure value in the flow path at a first time; measuring a second pressure value in the flow path at a second time; calculating a first rate of pressure change using the first and second pressure values; and in response to determining that the calculated first rate of pressure change satisfies a threshold rate of change, providing an indication that the wound dressing is full, wherein the method is performed under control of a controller of the pump system.
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Specification