Wound therapy device and related methods
First Claim
Patent Images
1. A therapeutic combination of promoting tissue healing, comprising:
- a porous pad which is permeable to fluids;
a tube having a first end in fluid communication with said porous pad;
a canister for collecting fluids drawn through said tube, said canister being fluidly connected with a second end of said tube which is opposite the first end of said tube, wherein said canister is removably received in a recess in a housing;
a suction pump for applying negative pressure to said tube, said suction pump being fluidly connected to said canister;
at least one bacterial filter between said canister and said suction pump;
an elastomeric film dressing having a pressure-sensitive adhesive in peripheral areas for securing said porous pad to tissue within a sealed space;
a sensor for detecting when said canister is substantially full with fluid, said sensor being associated with said suction pump to discontinue application of the negative pressure when a substantially full condition of said canister is detected; and
a switch providing a signal indicating that the canister properly resides within the recess when the switch is pressed.
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Accused Products
Abstract
A wound closure apparatus is disclosed which includes a housing that contains a vacuum pump and a chamber for holding a disposable wound fluid collection canister. The canister resides within the chamber and connects at an outlet with the vacuum pump and at an inlet with a pad. The pad is placed over a wound and adhesively secured thereto. When the vacuum pump activates, it evacuates air from the canister resulting in wound fluids flowing from the wound into the canister. After the canister is filled, it is removed from the chamber and replaced with another canister to continue the removal of wound fluids.
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Citations
17 Claims
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1. A therapeutic combination of promoting tissue healing, comprising:
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a porous pad which is permeable to fluids; a tube having a first end in fluid communication with said porous pad; a canister for collecting fluids drawn through said tube, said canister being fluidly connected with a second end of said tube which is opposite the first end of said tube, wherein said canister is removably received in a recess in a housing; a suction pump for applying negative pressure to said tube, said suction pump being fluidly connected to said canister; at least one bacterial filter between said canister and said suction pump; an elastomeric film dressing having a pressure-sensitive adhesive in peripheral areas for securing said porous pad to tissue within a sealed space; a sensor for detecting when said canister is substantially full with fluid, said sensor being associated with said suction pump to discontinue application of the negative pressure when a substantially full condition of said canister is detected; and a switch providing a signal indicating that the canister properly resides within the recess when the switch is pressed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 15, 16, 17)
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10. A therapeutic combination of promoting tissue healing, comprising:
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a porous pad which is permeable to fluids; a tube having a first end in fluid communication with said porous pad; a canister for collecting fluids drawn through said tube, said canister being fluidly connected with a second end of said tube which is opposite the first end of said tube, wherein said canister is removably received in a recess in a housing; a suction pump for applying negative pressure to said tube, said suction pump being fluidly connected to said canister; at least one bacterial filter between said canister and said suction pump; an elastomeric film dressing having a pressure-sensitive adhesive in peripheral areas for securing said porous pad to tissue within a sealed space; a tilt sensor for determining tilting of said therapeutic combination beyond a predetermined angle, said tilt sensor being associated with said suction pump to discontinue application of the negative pressure when tilting of said therapeutic combination beyond said predetermined angle is detected; and a switch providing a signal indicating that the canister properly resides within the recess when the switch is pressed. - View Dependent Claims (11, 12, 13)
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14. A therapeutic combination of promoting tissue healing, comprising:
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a porous pad which is permeable to fluids; a tube having a first end in fluid communication with said porous pad; a canister for collecting fluids drawn through said tube, said canister being fluidly connected with a second end of said tube which is opposite the first end of said tube, wherein said canister is removably received in a recess in a housing; a suction pump for applying negative pressure to said tube, said suction pump being fluidly connected to said canister; at least one bacterial filter between said canister and said suction pump; an elastomeric film dressing having a pressure-sensitive adhesive in peripheral areas for securing said porous pad to tissue within a sealed space; a sensor for detecting when said canister is substantially full with fluid, said sensor being associated with said suction pump to discontinue application of the negative pressure when a substantially full condition of said canister is detected; a tilt sensor for determining tilting of said therapeutic combination beyond a predetermined angle, said tilt sensor being associated with said suction pump to discontinue application of the negative pressure when tilting of said therapeutic combination beyond said predetermined angle is detected; and a switch providing a signal indicating that the canister properly resides within the recess when the switch is pressed; wherein said porous pad comprises a reticulated foam having at least 90% interconnecting cells; and wherein the peripheral areas with the pressure-sensitive adhesive extend beyond a periphery of the porous pad for adhering to intact skin around a wound.
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Specification