APPARATUS AND METHOD FOR CONTROLLING THE NEGATIVE PRESSURE IN A WOUND
First Claim
1. An apparatus for treating a wound with negative pressure, said apparatus comprising:
- a wound cover;
a first pump for providing said negative pressure at a chosen pressure level to the wound;
a canister;
a first conduit between the wound cover and the canister, wherein the first conduit is arranged to connect the wound with the canister during use of the apparatus;
first means for measuring the pressure within the canister;
a second conduit that connects the canister with the first pump;
a circulating pump; and
a third conduit that connects the canister and a wound region of the wound, wherein the circulating pump is arranged to intermittently transport a gas volume from the canister to the wound region via the third conduit and back to the canister via the first conduit in order to press out possible exudates from the first conduit to the canister, wherein a second means is arranged to analyze the pressure curve over time of said pressure in the canister, said pressure curve being intermittently influenced by said transport of the gas volume, and wherein a third means is arranged to indicate by an alarm when said pressure curve differs from a normal cyclical form, wherein the alarm is visible, audible, or visible and audible.
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Accused Products
Abstract
An apparatus and method are provided for treating wound with negative pressure. The apparatus includes a wound cover, a first pump for providing said negative pressure at a chosen pressure level to the wound, a canister, a first conduit between the wound cover and the canister, first means for measuring the pressure within the canister, and a second conduit which connects the canister with the first pump. A circulating pump is arranged to intermittently transport a gas volume from the canister to the wound region via a third conduit and back to the canister via the first conduit in order to press out possible exudates from the first conduit to the canister. A second means analyzes the pressure curve over time of said pressure in the canister and a third means indicates by alarm when said pressure curve differs from a normal cyclical form.
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Citations
14 Claims
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1. An apparatus for treating a wound with negative pressure, said apparatus comprising:
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a wound cover; a first pump for providing said negative pressure at a chosen pressure level to the wound; a canister; a first conduit between the wound cover and the canister, wherein the first conduit is arranged to connect the wound with the canister during use of the apparatus; first means for measuring the pressure within the canister; a second conduit that connects the canister with the first pump; a circulating pump; and a third conduit that connects the canister and a wound region of the wound, wherein the circulating pump is arranged to intermittently transport a gas volume from the canister to the wound region via the third conduit and back to the canister via the first conduit in order to press out possible exudates from the first conduit to the canister, wherein a second means is arranged to analyze the pressure curve over time of said pressure in the canister, said pressure curve being intermittently influenced by said transport of the gas volume, and wherein a third means is arranged to indicate by an alarm when said pressure curve differs from a normal cyclical form, wherein the alarm is visible, audible, or visible and audible. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 13)
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10. A method for controlling the negative pressure in a wound with the use of an apparatus for treating wounds with negative pressure, the method comprising:
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using a first pump to create a negative pressure at a chosen pressure level within a canister, which is connected with the wound via a first conduit; measuring the pressure in the canister; intermittently transporting a gas volume with a circulating pump from the canister towards the wound region via a third conduit; directing said gas volume to the first conduit and back through the first conduit to the canister for pushing possible wound exudates residing in the first conduit to the canister; analyzing the pressure curve over time of said pressure in the canister, said pressure curve being intermittently influenced by said transport of the gas volume; and selectively activating an alarm when said pressure curve differs from a normal cyclical form, wherein the alarm is visible, audible, or visible and audible. - View Dependent Claims (11, 12, 14)
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Specification