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US 10,117,977 B2Granted
Devices and 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
Estimating the term…
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.
Claims43
A tissue therapy device, the device comprising:
- a sealant layer comprising:
- a base member comprising an aperture, and
- a cap member configured to removably seal the aperture of the base member, wherein the base member and the cap member farm a sealed enclosure around an area of tissue;
- and
- a suction apparatus comprising:
- a body with a variable volume portion bounded by a rigid wall portion,
- a slidable sealing member configured to sealably slide along the rigid wall portion, and
- a retaining mechanism configured to hold the slidable sealing member in a withdrawn position within the rigid wall portion to create and maintain a negative pressure within the sealed enclosure, wherein the retaining mechanism comprises an elongated structure with a distal portion attached to the slidable sealing member and a proximal portion configured to movably engage projections of the suction apparatus.
5 more elements
A tissue therapy device, the device comprising:
- a sealant layer comprising:
- a base member comprising an aperture, and
- a cap member configured to removably seal the aperture of the base member, wherein the base member and the cap member form a sealed enclosure around an area of tissue;
- and
- a non-electrically powered suction apparatus comprising:
- a non-cylindrical variable volume portion bounded by a rigid wall portion,
- a slidable sealing member configured to sealably slide along the rigid wall portion, and
- a retaining mechanism configured to hold the slidable sealing member in a withdrawn position within the rigid wall portion to create and maintain a negative pressure underneath the sealant layer, wherein the retaining mechanism comprises an elongated structure with a distal portion attached to the slidable sealing member and a proximal portion configured to movably engage projections of the suction apparatus.
5 more elements
A tissue therapy device, the device comprising:
- a sealant layer comprising:
- a base member comprising a resealable aperture, and
- a cap member configured to removably seal the aperture of the base member, wherein the base member and the cap member form a sealed enclosure around an area of tissue, and wherein the base member further comprises a stabilizing member configured to stabilize the base member when the cap member is being removed from the resealable aperture of the base member;
- and
- a suction apparatus comprising:
- a body with a variable volume portion bounded by a rigid wall portion,
- a slidable sealing member configured to sealably slide along the rigid wall portion, and
- a retaining mechanism configured to hold the slidable sealing member in a withdrawn position within the rigid wall portion to create and maintain a negative pressure within the sealed enclosure.
5 more elements
A tissue therapy device, the device comprising:
- a sealant layer comprising:
- a base member comprising an aperture, and
- a cap member configured to removably seal the aperture of the base member, wherein the base member and the cap member form a sealed enclosure around an area of tissue, and wherein at least one of the cap member or the base member comprises a gasket configured to facilitate an airtight seal;
- and
- a suction apparatus comprising:
- a body with a variable volume portion bounded by a rigid wall portion,
- a slidable sealing member configured to sealably slide along the rigid wall portion, and
- a retaining mechanism configured to hold the slidable sealing member in a withdrawn position within the rigid wall portion to create and maintain a negative pressure within the sealed enclosure.
5 more elements
A tissue therapy device, the device comprising:
- a sealant layer comprising:
- a base member comprising a resealable aperture, and
- a cap member configured to removably seal the aperture of the base member, wherein the base member and the cap member form a sealed enclosure around an area of tissue, and wherein the cap member further comprises a contact layer configured to contact the sealed enclosure when the cap member seals the resealable aperture;
- and
- a suction apparatus comprising:
- a body with a variable volume portion bounded by a rigid wall portion,
- a slidable sealing member configured to sealably slide along the rigid wall portion, and
- a retaining mechanism configured to hold the slidable sealing member in a withdrawn position within the rigid wall portion to create and maintain a negative pressure within the sealed enclosure.
5 more elements
Dependencies are inferred from the claim text.