Reduced-pressure systems, devices, and methods for treating a tissue site that includes a fistula
Systems, methods, and devices are disclosed that involve a fistula-isolating device for use when reduced pressure is applied to a wound bed having a fistula. In one instance, the fistula-isolating device includes an adjustable passageway member and a perimeter member that contracts under reduced pressure and that automatically accommodates wound beds of different heights. In another instance, the fistula-isolating device involves a body shaped as a frustro-conical body that is readily sized for different depth wound beds. Other systems, methods, and devices are presented.
1. A system for providing reduced pressure treatment to a wound bed that includes a fistula, the system comprising:
a fistula-isolating device for isolating a fistula in the wound bed undergoing reduced-pressure treatment, the fistula-isolating device comprising:
an adjustable passageway member, wherein the adjustable passageway member is configured to move between a retracted position and an extended position and is substantially fluid impermeable, and
a perimeter member comprising a fluid permeable material, the perimeter member positioned substantially around an exterior perimeter of the adjustable passageway member;
a distribution manifold having a fistula aperture for receiving the fistula-isolating device;
a sealing member for covering the fistula-isolating device and the distribution manifold to create a sealed space over at least a portion of the wound bed, wherein the sealing member has an ostomy-interface aperture;
a reduced-pressure source for supplying a reduced pressure to the sealed space; and
an ostomy appliance configured to be in fluid communication with the adjustable passageway member.
2. The system of claim 1 , wherein the distribution manifold has an initial height h d1 when not subjected to reduced pressure, the fistula-isolating device has an initial height h F1 when not subjected to reduced pressure, and h d1 is substantially equal to h F1 .
3. The system of claim 1 , wherein the distribution manifold has a height h d2 when the sealed space is subjected to reduce pressure in a first therapeutic pressure range, the fistula-isolating device has a height h F2 when the sealed space is subjected to reduce pressure in the first therapeutic pressure range, and h d2 is substantially equal to h F2 .
4. A system for providing reduced pressure treatment to a wound bed that includes a fistula, the system comprising:
a fistula-isolating device for isolating a fistula in the wound bed undergoing reduced-pressure treatment, the fistula-isolating device comprising:
an adjustable passageway member, wherein the adjustable passageway member is configured to move between a retracted position and an extended position and is substantially fluid impermeable, and
a perimeter member positioned substantially around an exterior perimeter of the adjustable passageway member, wherein the perimeter member is configured to bias the adjustable passageway member towards the extended position;
a distribution manifold having a fistula aperture for receiving the fistula-isolating device;
a sealing member for covering the fistula-isolating device and the distribution manifold to create a sealed space over at least a portion of the wound bed, wherein the sealing member has an ostomy-interface aperture; and
a reduced-pressure source for supplying a reduced pressure to the sealed space.
5. The system of claim 4 , wherein the distribution manifold has an initial height h d1 when not subjected to reduced pressure, the fistula-isolating device has an initial height h F1 when not subjected to reduced pressure, and h d1 is substantially equal to h F1 .
6. The system of claim 4 , wherein the distribution manifold has a height h d2 when the sealed space is subjected to reduce pressure in a first therapeutic pressure range, the fistula-isolating device has a height h F2 when the sealed space is subjected to reduce pressure in the first therapeutic pressure range, and h d2 is substantially equal to h F2 .