Methods for application of reduced pressure therapy
AssigneeThe Board of Trustees of the Leland Stanford Junior University
InventorsMoshe Pinto, Dean Hu, Kenton Fong
Life of this patent
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Abstract
The tissue therapy device includes a sealant layer and a suction apparatus. The sealant layer creates a sealed enclosure between it and the surface of a patient by forming an airtight seal around an area of tissue. The suction apparatus is in fluid communication with the sealant layer and together, create a closed, reduced pressure therapy system. The suction apparatus self-creates reduced pressure by decreasing the density of air molecules underneath the sealant layer by expanding the volume of the air molecules.
Claims23
A method of applying reduced pressure therapy
- to an area of tissue, comprising:
- creating a sealed enclosure around an area of tissue with a sealant layer by affixing the sealant layer around said area of tissue;
- self-creating a reduced pressure of at least −50 mm Hg underneath the sealant layer using a suction apparatus comprising a chamber with rigid sides and a slidable sealing member configured to sealably slide along said rigid sides, wherein said suction apparatus is in fluid communication through the sealant layer;
- wherein said sealant layer and said suction apparatus are adapted and configured to create a closed reduced pressure system;
- maintaining the reduced pressure using a retaining mechanism attached to the slidable sealing member and engaged to the chamber, the mechanism configured to maintain the position of the slidable sealing member at a plurality of positions;
- and
- securing said suction apparatus to a patient independently from the fluid communication with the sealant layer.
A method of treating a wound using a reduced pressure therapy device comprising:
- creating a sealed enclosure around a wound by covering said wound with a sealant layer of a wound dressing;
- applying a reduced pressure to the wound using a suction apparatus with a non-cylindrical chamber comprising rigid sides and a slidable sealing member configured to sealably slide along said rigid sides;
- securing said suction apparatus to a patient independently from the fluid communication with the sealant layer;
- and
- adjusting the slidable sealing member to a different position to maintain said reduced pressure, said adjusting performed using a mechanism attached to the slidable sealing member and engaged to the chamber.
A method of treating a wound using a reduced pressure tissue therapy device, comprising:
- positioning a reduced pressure tissue therapy device over an area of tissue to be treated, said reduced pressure tissue therapy device comprising a sealant layer and a suction apparatus;
- reducing a level of pressure in a volume of air located under the sealant layer by engaging the suction apparatus, wherein said engaging of said suction apparatus is in fluid communication with the said volume of air and self-creates a reduction in pressure by expanding non-cylindrical chamber of the suction apparatus, wherein the chamber comprises rigid sides and a slidable sealing member configured to sealably slide along said rigid sides;
- wherein said sealant layer and said suction apparatus are adapted and configured to create a closed reduced pressure system;
- securing said suction apparatus to a patient independently from the fluid communication with the sealant layer;
- and
- adjusting the slidable sealing member to a different position to maintain said reduction in pressure, said adjusting performed using a retaining mechanism attached to the sliding seal and engaged to the chamber.
Dependencies are inferred from the claim text.