Simultaneous aspirate and irrigate and scaffold
First Claim
1. An apparatus for aspirating, irrigating and/or cleansing wounds, the apparatus comprising:
- a fluid flow path a comprising a conformable wound dressing having a backing layer capable of forming a relatively fluid-tight seal over a wound, the backing layer comprising a wound-facing face, a fluid supply tube and a fluid offtake tube;
a biodegradable scaffold positionable under the backing layer and configured to be placed in contact with a wound bed in use;
a fluid reservoir in communication with the fluid supply tube;
means for providing simultaneous aspiration and irrigation comprising at least one device for moving fluid through the fluid flow path, the apparatus being configured such that fluid may be supplied to fill the fluid flow path from the fluid reservoir via the fluid supply tube while fluid is aspirated through the fluid offtake tube; and
means for flow regulation in communication with either the fluid supply tube or the fluid offtake tube configured to vary the flow rate of a fluid through either the fluid supply tube or the fluid offtake tube at least between two non-zero flow rate values.
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Accused Products
Abstract
An apparatus for cleansing wounds in which irrigant fluid from a reservoir connected to a conformable wound dressing and wound exudate from the dressing are moved by a device (which may be a single pump or two pumps) for moving fluid through a flow path which passes through the dressing and over a biodegradable scaffold in contact with the wound bed (which encourages healing tissue growth from the wound bed). The apparatus has means (which includes the device(s)) for providing simultaneous aspiration and irrigation of the wound. A dressing assembly including the dressing and the scaffold, and the dressing and a method of treatment using the apparatus.
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Citations
27 Claims
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1. An apparatus for aspirating, irrigating and/or cleansing wounds, the apparatus comprising:
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a fluid flow path a comprising a conformable wound dressing having a backing layer capable of forming a relatively fluid-tight seal over a wound, the backing layer comprising a wound-facing face, a fluid supply tube and a fluid offtake tube; a biodegradable scaffold positionable under the backing layer and configured to be placed in contact with a wound bed in use; a fluid reservoir in communication with the fluid supply tube; means for providing simultaneous aspiration and irrigation comprising at least one device for moving fluid through the fluid flow path, the apparatus being configured such that fluid may be supplied to fill the fluid flow path from the fluid reservoir via the fluid supply tube while fluid is aspirated through the fluid offtake tube; and means for flow regulation in communication with either the fluid supply tube or the fluid offtake tube configured to vary the flow rate of a fluid through either the fluid supply tube or the fluid offtake tube at least between two non-zero flow rate values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18)
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12. A method of treating a wound to promote wound healing, the method comprising:
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providing a fluid flow path, the fluid flow path comprising a conformable wound dressing, having a backing layer forming a relatively fluid-tight seal over a wound, the backing layer comprising a wound-facing face, a fluid supply tube, a fluid offtake tube, and a biodegradable scaffold located under the backing layer in contact with a wound bed; moving fluid from a fluid reservoir through the fluid flow path; regulating the amount of fluid that flows through the fluid supply tube at least between two non-zero flow rate values; and regulating the amount of fluid that flows through the fluid offtake tube at least between two non-zero flow rate values; wherein regulating the amount of fluid that flows through the fluid supply tube is independent of regulating the amount of fluid that flows through the fluid offtake tube. - View Dependent Claims (19, 20, 21, 22)
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23. An apparatus for aspirating, irrigating and/or cleansing wounds, comprising:
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a backing layer capable of forming a relatively fluid-tight seal over a wound; a fluid supply tube arranged to provide fluid from a fluid reservoir to the wound; a fluid offtake tube arranged to withdraw fluid from the wound; a biodegradable scaffold positionable under the backing layer and configured to be placed in contact with the wound in use; a pump in communication with either the fluid supply tube or the fluid offtake tube and configured to move fluid through at least such tube; and a regulator in communication with the other of the fluid supply tube or the fluid offtake tube and configured to at least regulate the rate of fluid flowing through such tube at least between two non-zero flow rate values; wherein the apparatus is configured to provide simultaneous aspiration and irrigation to the wound such that fluid may be supplied to fill the fluid flow path from the fluid reservoir via the fluid supply tube while fluid is aspirated through the fluid offtake tube. - View Dependent Claims (24, 25, 26, 27)
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Specification