A wound closure apparatus to promote tissue healing at a wound is provided and includes a porous pad positioned at the wound and a suction pump in fluid communication with the porous pad to provide a negative pressure to the porous pad. The suction pump is disposed within a housing. A canister is fl
A wound closure apparatus to promote tissue healing at a wound is provided and includes a porous pad positioned at the wound and a suction pump in fluid communication with the porous pad to provide a negative pressure to the porous pad. The suction pump is disposed within a housing. A canister is fluidly connected between the porous pad and the suction pump to collect fluids drawn from the wound by the suction pump, and the canister is removably received by a recess in the housing. A wound cover is positioned over the porous pad to secure the porous pad at the wound, and a switch provides a signal indicating that the canister properly resides within the recess when the switch is pressed.
대표청구항▼
1. A wound closure apparatus to promote tissue healing at a wound, the apparatus comprising: a porous pad adapted to be positioned at the wound;a suction pump in fluid communication with the porous pad to provide a negative pressure to the porous pad, the suction pump being disposed within a housing
1. A wound closure apparatus to promote tissue healing at a wound, the apparatus comprising: a porous pad adapted to be positioned at the wound;a suction pump in fluid communication with the porous pad to provide a negative pressure to the porous pad, the suction pump being disposed within a housing;a canister fluidly connected between the porous pad and the suction pump to collect fluids drawn from the wound by the suction pump, the canister being removably received by a recess in the housing;a wound cover positioned over the porous pad to secure the porous pad at the wound; anda switch providing a signal indicating that the canister properly resides within the recess when the switch is pressed. 2. The apparatus of claim 1, wherein fluid communication is provided between the porous pad and the canister by a tube. 3. The apparatus of claim 2, wherein the tube is fitted as an interference fit into an interior portion of the porous pad. 4. The apparatus of claim 1, wherein the porous pad comprises a polymer foam having interconnecting cells. 5. The apparatus of claim 1, wherein the porous pad is a polyurethane reticulated foam. 6. The apparatus of claim 1, wherein the porous pad comprises a reticulated foam having at least 90% interconnecting cells. 7. The apparatus of claim 1, wherein the porous pad comprises a reticulated foam having at least 95% interconnecting cells. 8. The apparatus of claim 1 further comprising a delay circuit adapted to silence an alarm associated with an improper operating condition. 9. The apparatus of claim 1, wherein the wound cover includes an adhesive in a peripheral area of the wound cover. 10. The apparatus of claim 9, wherein the peripheral area with the adhesive extends beyond a periphery of the porous pad for adhering to intact skin around the wound. 11. The apparatus of claim 1 further comprising a latch securing the canister in the recess in the housing. 12. The apparatus of claim 1, wherein the canister includes a transparent window. 13. A wound closure apparatus to promote tissue healing at a wound, the apparatus comprising: a porous pad adapted to be positioned at the wound;a suction pump in fluid communication with the porous pad to provide a negative pressure to the porous pad;a canister fluidly connected between the porous pad and the suction pump to collect fluids drawn from the wound by the suction pump;a wound cover positioned over the porous pad to secure the porous pad at the wound; anda bleed valve to vent negative pressure between the suction pump and the canister when the suction pump is deactivated. 14. The apparatus of claim 13, wherein the bleed valve permits release of negative pressure during intermittent operation of the suction pump. 15. The apparatus of claim 13, wherein bleed valve prevents overpressurization of negative pressure during operation of the suction pump. 16. The apparatus of claim 13, wherein the bleed valve comprises an orifice. 17. The apparatus of claim 16, wherein the orifice is 0.5 mm in diameter. 18. The apparatus of claim 13, wherein: the suction pump is disposed within a housing; andthe bleed valve is disposed outside of the housing to facilitate un-clogging of blockages. 19. The apparatus of claim 13 further comprising: a tube to fluidly connect the canister and the suction pump; anda tank fluidly connected to the tube to act as a damper to pressure changes in the tube. 20. The apparatus of claim 19 further comprising: a transducer fluidly connected to the tube to measure a pressure in the tube. 21. The apparatus of claim 13, wherein fluid communication is provided between the porous pad and the canister by a tube. 22. The apparatus of claim 21, wherein the tube is fitted as an interference fit into an interior portion of the porous pad. 23. The apparatus of claim 13, wherein the porous pad comprises a polymer foam having interconnecting cells. 24. The apparatus of claim 13, wherein the porous pad is a polyurethane reticulated foam. 25. The apparatus of claim 13, wherein the porous pad comprises a reticulated foam having at least 90% interconnecting cells. 26. The apparatus of claim 13, wherein the porous pad comprises a reticulated foam having at least 95% interconnecting cells. 27. The apparatus of claim 13 further comprising a delay circuit adapted to silence an alarm associated with an improper operating condition. 28. The apparatus of claim 13, wherein the wound cover includes an adhesive in a peripheral area of the wound cover. 29. The apparatus of claim 28, wherein the peripheral area with the adhesive extends beyond a periphery of the porous pad for adhering to intact skin around the wound. 30. The apparatus of claim 13, wherein the canister includes a transparent window. 31. The apparatus of claim 13 further comprising a sensor for detecting when the canister is substantially full with fluid, the sensor being associated with the suction pump to discontinue application of the negative pressure when a substantially full condition of the canister is detected. 32. The apparatus of claim 31, wherein the sensor comprises a capacitance sensor, the sensor being arranged to sense a change of capacitance as the canister fills with fluid. 33. The apparatus of claim 13 further comprising a tilt sensor associated with the suction pump to discontinue application of negative pressure when tilting of the canister greater than a predetermined angle is detected. 34. The apparatus of claim 33, wherein the predetermined angle is approximately 45°. 35. The apparatus of claim 13 further comprising a sensor for detecting a variance greater than a predetermined angle of an axis of the canister.
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이 특허에 인용된 특허 (110)
Ward William J. (Hull GBX) Shorthouse Joanne (Hull GBX), Adhesive dressing for retaining a cannula on the skin.
Errede Louis A. (North Oaks MN) Stoesz James D. (St. Paul MN) Winter ; deceased George D. (late of St. Paul MN by Jenny Upton ; personal representative), Composite wound dressing.
Todd Robert J. (Salt Lake City UT) Yagge Jaime E. (Salt Lake City UT) Lowe James E. (Durham NC) Wonder Terry M. (Salt Lake City UT), Medical suction apparatus.
Ferdman Ariel (12 Hillside Ave. Melrose MA 02176) Kuo Jing-wen (Boxboro MA) Miller David (Brookline MA) Pinsky Vladimir (Brighton MA) Richards William D. (Medway MA) Swann David (Cambridge MA), Method and device for wound closure.
Moriuchi Yousuke (Fujinomiya JPX) Ishida Toshinobu (Fujinomiya JPX) Kousai Tadashi (Fujinomiya JPX), Method of securing a catheter body to a human skin surface.
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Richmond James W. (Kalamazoo MI) Tice Robert G. (Portage MI) Booth ; III William M. (Paw Paw MI), Vacuum wound drainage system and lipids baffle therefor.
McNeil Charles B. (5960 Arbour Ave. Edina MN 55436) McEvoy Thomas J. (13103 Baker Trail Minnetonka MN 55343), Wearable, variable rate suction/collection device.
Lock Peter M. (327 Lordswood La. Petrosa ; Walderslade ; Chatham ; Kent GB2) Webb David R. (9 Lambourn Way Lordwood ; Chatham ; Kent GB2), Wound dressing materials.
Bjelovuk, Brian P.; Childress, Carrie Lee; Gregory, William W.; Leigh, Kathryn Ann; Muser, Andrew P.; Ratliff, Billy J.; Roller, Michael T.; Roth, Robert H.; Schaefer, Mark, Canister for collecting wound exudate.
Bjelovuk, Brian P.; Childress, Carrie Lee; Gregory, William W.; Leigh, Kathryn Ann; Muser, Andrew P.; Ratliff, Billy J.; Roller, Michael T.; Roth, Robert H.; Schaefer, Mark, Canister for collecting wound exudate.
Bjelovuk, Brian P.; Gregory, William W.; Leigh, Kathryn Ann; Muser, Andrew P.; Ratliff, Billy J.; Roller, Michael T.; Roth, Robert H.; Schaefer, Mark, Canister for collecting wound exudate.
Bjelovuk, Brian P.; Gregory, William W.; Leigh, Kathryn Ann; Muser, Andrew P.; Ratliff, Billy J.; Roller, Michael T.; Roth, Robert H.; Schaefer, Mark, Canister for collecting wound exudate.
Bjelovuk, Brian P.; Childress, Carrie Lee; Deutsch, Kealoha Young; Gregory, William W.; Leigh, Kathryn Ann; Muser, Andrew P.; Quintanar, Felix C.; Ratliff, Billy J.; Roller, Michael T.; Roth, Robert H., Device for applying negative pressure to a wound.
Bjelovuk, Brian P.; Childress, Carrie Lee; Deutsch, Kealoha Young; Gregory, William W.; Leigh, Kathryn Ann; Muser, Andrew P.; Quintanar, Felix C.; Ratliff, Billy J.; Roller, Michael T.; Roth, Robert H., Device for applying negative pressure to a wound.
Bjelovuk, Brian P.; Childress, Carrie Lee; Deutsch, Kealoha Young; Gregory, William W.; Leigh, Kathryn Ann; Muser, Andrew P.; Quintanar, Felix C.; Ratliff, Billy J.; Roller, Michael T.; Roth, Robert H.; Schaefer, Mark, Therapy unit assembly.
Bjelovuk, Brian P.; Childress, Carrie Lee; Deutsch, Kealoha Young; Gregory, William W.; Leigh, Kathryn Ann; Muser, Andrew P.; Quintanar, Felix C.; Ratliff, Billy J.; Roller, Michael T.; Roth, Robert H.; Schaefer, Mark, Therapy unit assembly.
Bjelovuk, Brian P.; Childress, Carrie Lee; Deutsch, Kealoha Young; Gregory, William W.; Leigh, Kathryn Ann; Muser, Andrew P.; Quintanar, Felix C.; Ratliff, Billy J.; Roller, Michael T.; Roth, Robert H.; Schaefer, Mark, Therapy unit assembly.
Bjelovuk, Brian P.; Childress, Carrie Lee; Deutsch, Kealoha Young; Gregory, William W.; Leigh, Kathryn Ann; Muser, Andrew P.; Quintanar, Felix C.; Ratliff, Billy J.; Roller, Michael T.; Roth, Robert H.; Schaefer, Mark, Therapy unit assembly.
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