Device For Active Treatment and Regeneration of Tissues Such as Wounds
First Claim
1. An apparatus, comprising:
- a negative pressure wound therapy system including a fluid canister and a processor system, the processor system configured to receive a plurality of signals based on a weight of the fluid canister over a plurality of times, the processor system configured to calculate a value of a metric based on the plurality of signals, the processor system configured to send an alarm signal when the value of the metric exceeds a threshold.
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Accused Products
Abstract
Hydrostatic pressure of aqueous solutions—supplied from reservoir under rate control through tube to port of airtightly applied open pore dressing pad—is eliminated by levelling reservoir placed on rest with pad. Dressing pad may overlie a tissue culturing scaffold. A drip chamber with angulated channel permits drops to fall freely and be counted. Injection port elastic membrane prevents air inlet to pad while suction is applied at port, permitting fluid given under rate control through membrane to distribute evenly in pad. A drainage port flange, wholly covered by an open grid, is described. Acute wound bleeding is detected by computer-controlled serial weighing of a movement-stabilized drainage fluid canister with warning of abnormal flow rate increase.
92 Citations
20 Claims
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1. An apparatus, comprising:
a negative pressure wound therapy system including a fluid canister and a processor system, the processor system configured to receive a plurality of signals based on a weight of the fluid canister over a plurality of times, the processor system configured to calculate a value of a metric based on the plurality of signals, the processor system configured to send an alarm signal when the value of the metric exceeds a threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method, comprising:
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receiving a signal associated with a weight of a fluid canister at a first time and a signal associated a weight of the fluid canister at a second time different from the first time, the fluid canister associated with a wound undergoing negative pressure wound therapy; calculating a rate of fluid added to the fluid canister based on the signal associated with the first time and the signal associated with the second time; and sending a signal associated with an alarm when the rate of fluid added to the fluid canister exceeds a threshold associated with bleeding from the wound. - View Dependent Claims (10, 11, 12, 13)
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14. An apparatus, comprising:
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a wound dressing; a drainage port tube having a tube portion and a flange, a perimeter of the flange being greater than a perimeter of the tube portion of the drainage port tube; and a material layer disposed between the wound dressing and the drainage port tube, the material layer having an open grid structure, the material layer having a perimeter greater than the perimeter of the tube portion of the drainage port tube. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification