An apparatus for cleansing wounds with means for stressing the wound bed and optionally tissue surrounding the wound, in which irrigant fluid from a reservoir connected to a conformable wound dressing and wound exudate from the dressing are recirculated by a device for moving fluid through a flow pa
An apparatus for cleansing wounds with means for stressing the wound bed and optionally tissue surrounding the wound, in which irrigant fluid from a reservoir connected to a conformable wound dressing and wound exudate from the dressing are recirculated by a device for moving fluid through a flow path which passes through the dressing and a means for fluid cleansing and back to the dressing. The cleansing means (which may be a single-phase, e.g. micro-filtration, system or a two-phase, e.g. dialytic system) removes materials deleterious to wound healing, and the cleansed fluid, still containing materials that are beneficial in promoting wound healing, is returned to the wound bed. The means for stressing the wound bed and optionally tissue surrounding the wound promotes wound healing. The dressing and a method of treatment using the apparatus.
대표청구항▼
1. A method of treating a wound, comprising: applying a cyclically varying negative pressure to the wound in accordance with a sinusoidal waveform that varies relative to a baseline pressure, wherein the wound is covered at least partially by a conformable wound dressing configured to form at least
1. A method of treating a wound, comprising: applying a cyclically varying negative pressure to the wound in accordance with a sinusoidal waveform that varies relative to a baseline pressure, wherein the wound is covered at least partially by a conformable wound dressing configured to form at least a relatively fluid tight seal around at least a portion of the wound,wherein applying the cyclically varying negative pressure to the wound in accordance with the sinusoidal waveform comprises varying the sinusoidal waveform to include first and second maximum amplitudes of negative pressure, the first maximum amplitude different from the second maximum amplitude, wherein the cyclically varying negative pressure applied to the wound is below atmospheric pressure. 2. The method of treating a wound of claim 1, comprising varying the cyclically varying negative pressure to the wound between at least two negative pressure values, wherein each negative pressure value is below atmospheric pressure. 3. The method of treating a wound of claim 1, further comprising varying the cyclically varying negative pressure to the wound between at least a positive pressure value and a negative pressure value, wherein the positive pressure value is above atmospheric pressure and the negative pressure value is below atmospheric pressure. 4. The method of treating a wound of claim 1, further comprising pumping fluid through at least an inlet conduit in communication with the wound dressing, the wound dressing, and an outlet conduit in communication with the wound dressing. 5. The method of treating a wound of claim 4, further comprising cleansing the fluid that flows out of the wound dressing to reduce the amount of deleterious components in the fluid that flows out of the dressing without substantially reducing the amount of the components in the fluid that flows out of the dressing that are beneficial to wound healing. 6. The method of treating a wound of claim 5, further comprising recirculating at least a portion of the fluid that flows out of the wound dressing back to the dressing after being cleansed so that nutrients, molecules, factors, and/or other components from the wound exudate that aid in proliferation or that are favorable to the wound healing process are returned to the wound. 7. The method of treating a wound of claim 1, comprising varying a pressure provided to a wound filler positioned adjacent to the wound. 8. The method of treating a wound of claim 1, further comprising varying the cyclically varying negative pressure between a first negative pressure value below atmospheric pressure and a second value below atmospheric pressure, wherein the second value is between 5 percent and 40 percent of atmospheric pressure. 9. The method of treating a wound of claim 8, wherein the second value is between 10 percent and 15 percent of atmospheric pressure. 10. The method of treating a wound of claim 1, further comprising applying a cyclically varying positive pressure to the wound. 11. The method of treating a wound of claim 1, further comprising applying a cyclically varying positive and negative pressure to the wound. 12. The method of treating a wound of claim 1, further comprising applying a cyclically varying positive and negative pressure to the wound in accordance with a sinusoidal waveform. 13. The method of treating a wound of claim 1, wherein applying the cyclically varying negative pressure to the wound comprises stressing the wound such that the wound is subject to strain. 14. The method of treating a wound of claim 1, wherein the cyclically varying negative pressure is applied to the wound at a controlled frequency. 15. The method of treating a wound of claim 1, wherein the baseline pressure is a constant negative pressure. 16. The method of treating a wound of claim 1, wherein the baseline pressure is varied below atmospheric pressure. 17. A method of treating a wound, comprising: applying a varying pressure to the wound in accordance with a waveform selected from the group consisting of sinusoidal, random white noise, sawtooth, and square, the wound covered at least partially by a conformable wound dressing configured to form at least a relatively fluid tight seal around at least a portion of the wound,wherein the varying pressure is applied at a frequency between 1 and 3000 cycles per minute,wherein the waveform varies relative to a baseline pressure, andwherein applying the varying pressure to the wound in accordance with the waveform comprises varying the waveform to include first and second maximum amplitudes of negative pressure, the first maximum amplitude different from the second maximum amplitude. 18. The method of treating a wound of claim 17, comprising: stressing the wound by applying a cyclical varying negative pressure to the wound in accordance with a systolic-diastolic asymmetric sawtooth waveform,wherein the cyclical varying negative pressure applied to the wound is below atmospheric pressure. 19. The method of treating a wound of claim 18, wherein stressing the wound comprises varying a pressure provided to a wound filler positioned adjacent to the wound. 20. The method of treating a wound of claim 18, wherein stressing the wound comprises means for varying the pressure of a fluid applied to the wound. 21. The method of treating a wound of claim 18, wherein the systolic-diastolic asymmetric sawtooth waveform has a frequency of about 60 to 100 per minute. 22. The method of treating a wound of claim 17, further comprising pumping fluid through at least an inlet conduit in communication with the wound dressing, the wound dressing, and an outlet conduit in communication with the wound dressing. 23. The method of treating a wound of claim 22, further comprising cleansing the fluid that flows out of the wound dressing to reduce the amount of deleterious components in the fluid that flows out of the dressing without substantially reducing the amount of the components in the fluid that flows out of the dressing that are beneficial to wound healing. 24. The method of treating a wound of claim 23, further comprising recirculating at least a portion of the fluid that flows out of the wound dressing back to the dressing after being cleansed so that nutrients, molecules, factors, and/or other components from the wound exudate that aid in proliferation or that are favorable to the wound healing process are returned to the wound. 25. The method of treating a wound of claim 17, further comprising cyclically varying the varying pressure below atmospheric pressure. 26. The method of treating a wound of claim 17, wherein the varying pressure is applied to the wound in accordance with a sinusoidal waveform. 27. The method of treating a wound of claim 17, wherein applying the varying pressure to the wound comprises stressing the wound such that the wound is subject to strain. 28. The method of treating a wound of claim 17, wherein applying the varying pressure to the wound comprises applying the varying pressure at a controlled frequency. 29. The method of treating a wound of claim 17, wherein the baseline pressure is a constant negative pressure. 30. The method of treating a wound of claim 17, wherein the baseline pressure is varied below atmospheric pressure.
Beck Walter (Obere Hslibachstr. 87 CH-8700 Ksnacht DEX) Berger Siegfried (Wernau DEX) Werner Heinz-Peter (Mainz DEX), Apparatus for aspirating secreted fluids from a wound.
Blott, Patrick Lewis; Greener, Bryan; Hartwell, Edward Yerbury; Nicolini, Derek; Walker, Tina Michelle; Lee-Webb, Julian, Apparatus for aspirating, irrigating and cleansing wounds.
Blott, Patrick Lewis; Hartwell, Edward Yerbury; Lee-Webb, Julian; Nicolini, Derek; Green, Clare; Martin, Robin Paul, Apparatus for cleansing wounds with means for supply of thermal energy to the therapy fluid.
Weston, Richard Scott; Bybordi, Farhad; Hartwell, Edward Yerbury; Hall, Kristian David, Auxiliary powered negative pressure wound therapy apparatuses and methods.
Treu Dennis M. ; Burbank Jeffrey H. ; Brugger James M., Flow-through peritoneal dialysis systems and methods with on-line dialysis solution regeneration.
Beck Walter (Obere Hslibachstr. 87 CH-8700-Ksnacht DEX) Berger Siegfried (Wernau DEX) Werner Heinz-Peter (Mainz DEX), Method and appparatus for aspirating secreted fluids from a wound.
Kruger Robert J. (Arlington Heights IL) Frederick Warren P. (Wonder Lake IL) Helgren R. Hayes (Mundelein IL) Larkin Mark E. (Lindenhurst IL) Mayoral Joaquin (Mundelein IL) Schmolesky Brad A. (Appleto, Peritoneal dialysis system using reverse osmosis purification device.
Kashmer James S. (Budd Lake NJ) Klimbach John K. (Wayne NJ) Vendetti Randall P. (Lincoln Park NJ), Suction canister with unitary shut-off valve and filter features.
Blott, Patrick Lewis; Greener, Bryan; Hartwell, Edward Yerbury; Walker, Tina Michelle; Lee-Webb, Julian; Nicolini, Derek; Green, Clare; Martin, Robin Paul, Wound cleansing apparatus with actives.
Blott, Patrick Lewis; Greener, Bryan; Hartwell, Edward Yerbury; Walker, Tina Michelle; Lee-Webb, Julian; Nicolini, Derek; Martin, Robin Paul, Wound cleansing apparatus with scaffold.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.