Therapeutic apparatus for treating ulcers
First Claim
1. An apparatus for treatment of ulcers located on the heel or metatarsal head regions of a foot, comprising:
- a dressing for applying a negative pressure to the heel or metatarsal head regions of a foot; and
a compressive element for applying a positive compressive force to a compressible regions of the foot including the plantar arch region;
wherein said compressive element is comprised of a compressor for filling a reservoir to a target pressure, a control circuit for shutting off said compressor when said target pressure is reached and releasing said air into said compressible regions until an equilibrium pressure is reached between said reservoir and said compressible region.
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Accused Products
Abstract
A method and apparatus for providing concurrent applications of intermittent pneumatic compression therapy and vacuum assisted closure therapy generally comprises a wound dressing for introduction of a negative pressure into a wound on a patient'"'"'s foot and a foot wrap for application of positive, compressive forces to substantially all of the patients foot. A suction pump, having an associated vacuum sensor and first feedback mechanism, supplies negative pressure to the wound dressing. A ventable source of pressurized gas, having an associated pressure transducer and second feedback mechanism, supplies positive force to the foot wrap. At least one control system is operably associated with the suction pump and ventable source of pressurized gas for controlling the negative and positive applications of pressure to the patient'"'"'s foot. Controlled modes for operation include continuous or intermittent application of one or both therapies and simultaneous or cycled application of the therapies.
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Citations
17 Claims
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1. An apparatus for treatment of ulcers located on the heel or metatarsal head regions of a foot, comprising:
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a dressing for applying a negative pressure to the heel or metatarsal head regions of a foot; and
a compressive element for applying a positive compressive force to a compressible regions of the foot including the plantar arch region;
wherein said compressive element is comprised of a compressor for filling a reservoir to a target pressure, a control circuit for shutting off said compressor when said target pressure is reached and releasing said air into said compressible regions until an equilibrium pressure is reached between said reservoir and said compressible region. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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2. A medical apparatus for therapeutic treatment of foot ulcers, comprising:
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a wound dressing for introduction of a negative pressure over a first region of a patient'"'"'s foot including a wound;
wherein said wound dressing is comprised of a porous foam positioned within said foot ulcer, a drape for covering and sealing said foam within said foot ulcer, and a fluid communication means in fluid communication with said foam;
a foot wrap having an inflatable bladder for applying a compressive force over a second region of said patient'"'"'s foot, concurrent with the introduction of said negative pressure, to compress the veins of said patient'"'"'s foot and thereby partially empty said veins;
a negative pressure source for supplying negative pressure to said wound dressing through said fluid communication means; and
a positive pressure source for supplying compressive force to said foot wrap;
wherein said positive pressure source is comprised of a compressor for filling a reservoir to a target pressure, a control circuit for shutting off said compressor when said target pressure is reached and releasing said air into said inflatable bladder until an equilibrium pressure is reached between said reservoir and said inflatable bladder.
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17. A medical apparatus for therapeutic treatment of foot ulcers, comprising:
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a wound dressing for introduction of a negative pressure over a first region of a patient'"'"'s foot including a wound, wherein said wound dressing is comprised of a porous foam positioned within said foot ulcer, a drape for covering and sealing said foam within said foot ulcer, and a fluid communication means in fluid communication with said foam;
a foot wrap having an inflatable bladder for applying a compressive force over a second region of the patient'"'"'s foot, the second region at least partially overlapping the first region;
a negative pressure source that supplies negative pressure to the wound dressing through said fluid communication means; and
a positive pressure source that supplies compressive force to the foot wrap;
wherein said positive pressure source is comprised of a compressor for filling a reservoir to a target pressure, a control circuit for shutting off said compressor when said target pressure is reached and releasing said air into said inflatable bladder until an equilibrium pressure is reached between said reservoir and said inflatable bladder.
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Specification