Negative pressure therapy with dynamic profile capability
View Patent ↗An apparatus and system for fluidly connecting a reduced-pressure source to a dressing and a method for manufacturing and using the same include a base having an aperture and a wall having a peripheral portion coupled to the base. The wall may form a cavity in fluid communication with the aperture. The apparatus also may include a conduit port fluidly coupled to the cavity and adapted to receive a conduit. The base may be adapted to couple to the dressing, and the wall may be adapted to collapse from a first position to a second position in response to a supply of reduced pressure from the reduced-pressure source.
1. A system for treating a tissue site with reduced pressure, the system comprising:
a manifold adapted to be placed proximate to the tissue site;
a sealing member adapted to cover the manifold to form a sealed space;
a reduced-pressure source adapted to supply reduced pressure to the manifold;
a connector comprising:
a wall forming a cavity adapted to fluidly couple to the manifold through the sealing member, the wall adapted to transition between a first position providing a first volumetric flow rate through the cavity at a flow velocity and a second position providing a second volumetric flow rate through the cavity while maintaining the flow velocity in response to a change in a supply of reduced pressure,
a conduit port adapted to fluidly couple the cavity to reduced-pressure source, and
a base extending from a peripheral portion of the wall and adapted to be coupled to the sealing member.
2. The system of claim 1 , wherein the wall has a thickness in a range of about 0.60 mm to about 2.00 mm.
3. The system of claim 1 , wherein the wall has a thickness of about 1.25 mm.
4. The system of claim 1 , wherein the wall comprises a polymer having a durometer in a range of about 25 Shore A to about 100 Shore A.
5. The system of claim 1 , wherein the wall comprises a polymer having a durometer of about 68 Shore A.
6. The system of claim 1 , wherein the wall comprises a polymer having a durometer in a range of about 25 Shore A to about 100 Shore A and a thickness in a range of about 0.60 mm to about 2.00 mm.
7. The system of claim 1 , wherein the wall comprises a polymer having a durometer and a thickness so that the wall is adapted to collapse from the first position to the second position.
8. The system of claim 1 , wherein the wall has a sloping profile in the second position.
9. The system of claim 1 , wherein the cavity has a first volume when the wall is in the first position and a second volume when the wall is in the second position.
10. The system of claim 1 , wherein the cavity has a first volume when the wall is in the first position, a second volume when the wall is in the second position, and the first volume is greater than the second volume.
11. The system of claim 1 , wherein the cavity has a height from a top of the base to a top of the wall of about 3 mm.
12. The system of claim 1 , wherein the base has a diameter of about 26 mm.
13. The system of claim 1 , further comprising a conduit fluidly coupled to the conduit port and the reduced-pressure source.
14. The system of claim 1 , further comprising a conduit fluidly coupled to the conduit port, the conduit having a diameter of about 2 mm.
15. The system of claim 1 , further comprising a conduit having a first end inserted into the conduit port and a second end adapted to be inserted into a lumen of a tube fluidly coupling the reduced-pressure source to the connector.
16. The system of claim 1 , further comprising a conduit having a diameter of about 2 mm, a first end inserted into the conduit port, and a second end adapted to be inserted into a lumen of a tube fluidly coupling the reduced-pressure source to the connector.
17. The system of claim 1 , further comprising an adhesive coupled to the base and adapted to couple the base to the sealing member, the adhesive adapted to create a fluid seal between the base and the sealing member.
18. The system of claim 1 , further comprising an instillation module adapted to be coupled to the connector to supply instillation fluid to the tissue site through the cavity.
19. The system of claim 1 , wherein the wall and the base comprise polyvinyl chloride.
20. A method of treating a tissue site with reduced pressure, the method comprising:
disposing a manifold proximate to the tissue site;
securing a sealing member over the manifold and a portion of intact epidermis to form a sealed space, the sealing member having an opening formed therein;
coupling a connector to the sealing member proximate to the opening, the connector having a dynamic cavity wall;
fluidly coupling a reduced-pressure source to the connector to supply reduced pressure to the manifold;
supplying reduced pressure to the manifold through the connector; and
collapsing at least a portion of the dynamic cavity wall from a first position providing a first volumetric flow rate through a cavity at a flow velocity to a second position providing a second volumetric flow rate through the cavity while maintaining the flow velocity when a therapeutic reduced pressure is reached in the sealed space.
21. The method of claim 20 , wherein supplying reduced pressure to the manifold through the connector further comprises supplying reduced pressure through a first volume of the cavity when the wall is in the first position and a second volume when the wall is in the second position.
22. The method of claim 20 , wherein supplying reduced pressure to the manifold through the connector further comprises supplying reduced pressure through a first volume of the cavity when the wall is in the first position and a second volume when the wall is in the second position, and the first volume is greater than the second volume.
23. The method of claim 20 , wherein fluidly coupling a reduced-pressure source to the connector to supply reduced pressure to the manifold further comprises fluidly coupling a conduit to a conduit port.
24. The method of claim 20 , wherein fluidly coupling a reduced-pressure source to the connector to supply reduced pressure to the manifold further comprises fluidly coupling a conduit having a diameter of about 2mm to a conduit port.
25. The method of claim 20 , wherein fluidly coupling a reduced-pressure source to the connector to supply reduced pressure to the manifold further comprises fluidly coupling a conduit to a conduit port, the conduit having a first end adapted to be inserted into the conduit port and a second end adapted to be inserted into a larger conduit.
26. The method of claim 20 , wherein fluidly coupling a reduced-pressure source to the connector to supply reduced pressure to the manifold further comprises fluidly coupling a conduit having a diameter of about 2 mm to a conduit port, the conduit having a first end adapted to be inserted into the conduit port, and a second end adapted to be inserted into a larger conduit.
27. The method of claim 20 , wherein coupling a connector to the sealing member further comprises coupling an adhesive to a base and to a dressing, the adhesive adapted to create a fluid seal between the base and the dressing.