Granted Patent B2

US 12,653,938 · App. 18/377,108 · Granted Jun 16, 2026

Inventors: Christopher Brian Locke (San Antonio, TX); Richard Coulthard (San Antonio, TX); James A. Luckemeyer (San Antonio, TX); Richard M. Kazala, Jr. (San Antonio, TX); Benjamin A. Pratt (San Antonio, TX); Timothy Mark Robinson (San Antonio, TX)

Assignee: Solventum Intellectual Properties Company

A61M1/602A61M1/74A61M1/743A61M1/918A61M1/96A61M1/98A61F2013/00536A61F2013/0054A61F13/05A61M1/67A61M1/73A61M1/732A61M1/985A61M27/00A61M2205/15A61M2205/18A61M2205/21A61M2205/3344A61M2205/584A61M2205/84

Abstract

Claims (26)

1 . A system for simultaneously treating a plurality of tissue sites on a patient, the system comprising:

a plurality of reduced-pressure dressings;

a plurality of multi-lumen reduced-pressure delivery conduits, wherein each multi-lumen reduced-pressure delivery conduit includes at least a pressure-sampling lumen and at least a reduced-pressure supply lumen;

a fluid storage device fluidly coupled to the plurality of reduced-pressure dressings for receiving and at least temporarily storing fluids; and

a multi-port therapy unit comprising:

a controller,

a plurality of patient-side ports, wherein each of the plurality of patient-side ports is configured to fluidly couple with one of the plurality of multi-lumen reduced-pressure delivery conduits and with at least one of the pressure-sampling lumens and one of the reduced-pressure supply lumens therein,

a plurality of reduced-pressure plenums, each of the plurality of reduced-pressure plenums associated with one of the plurality of patient-side ports,

a plurality of treatment pressure sensors, wherein each of the plurality of treatment pressure sensors is associated with one of the plurality of patient-side ports for determining a pressure associated with the at least one pressure-sampling lumen in the multi-lumen reduced-pressure delivery conduit associated with the patient-side port, wherein each treatment pressure sensor is operatively coupled to the controller to provide a treatment pressure signal to the controller,

a plurality of plenum pressure sensors, each of the plurality of plenum pressure sensors is associated with one of the plurality of reduced-pressure plenums and is operatively coupled to the controller for supplying a plenum pressure signal,

a first plurality of control valves fluidly coupled between each of the plurality of reduced-pressure plenums and an associated patient-side port, wherein each of the first plurality of control valves is operatively coupled to the controller so that each of the first plurality of control valves may be controlled by the controller,

a main vacuum source fluidly coupled to each of the plurality of plenums for supplying reduced pressure to each of the plurality of reduced-pressure plenums;

a second plurality of control valves fluidly coupled between each of the plurality of reduced-pressure plenums and the main vacuum source, and

wherein the controller is operative to regulate the reduced pressure supplied from the plurality of reduced-pressure plenums to the plurality of patient-side ports by controlling the first plurality of control valves and to regulate the reduced pressure supplied to the plurality of reduced-pressure plenums using the second plurality of control valves.

2 . The system of claim 1 , wherein the controller is configured to:

receive the plenum pressure signal for each plenum of the plurality of reduced-pressure plenums and if a plenum pressure signal is less (greater on a pressure scale) than a plenum threshold pressure to at least partially open the associated valve of the second plurality of control valves to deliver additional reduced pressure to the plenum associated with the plenum pressure signal that is less than the plenum threshold; and

receive the treatment pressure signal for each of the plurality of treatment pressure sensors and if a treatment pressure signal is less (greater on a pressure scale) than a minimum treatment pressure threshold to at least partially open the associated valve of the first plurality of control valves and if the treatment pressure signal is greater than a high treatment pressure threshold to at least partially close the associated valve of the first plurality of control valves.

3 . The system of claim 1 , wherein the controller is further operative to prioritize filling plenums of the plurality of reduced-pressure plenums such that a plenum have a plenum pressure signal that over time continues below a plenum threshold will be filled only after other plenums of the plurality of reduced-pressure plenums.

4 . The system of claim 1 , further comprising a plurality of indicators, each indicator of the plurality of indicators associated with one of the plurality of patient-side ports and is operatively coupled to the controller, wherein the controller is configured to activate an indicator of the plurality of indicators if the system is not able to maintain a desired pressure range for the associated pressure-sampling lumen or associated plenum.

5 . The system of claim 1 , wherein the fluid storage device comprises a plurality of absorbent layers associated with each of the plurality reduced-pressure dressings.

6 . The system of claim 1 , wherein the fluid storage device comprises a plurality of in-line fluid reservoirs fluidly coupled to the plurality of multi-lumen reduced-pressure delivery conduits.

7 . The system of claim 1 , wherein the fluid storage device comprises a fluid reservoir associated with the multi-port therapy unit.

8 . The system of claim 1 , wherein the plurality of first control valves comprise a plurality of proportional valves.

9 . The system of claim 1 , wherein the plurality of second control valves comprise proportional valves.

10 . The system of claim 1 , wherein each of the plurality of plenums comprises a fixed-volume pressure vessel.

11 . The system of claim 1 , wherein each of the plurality of plenums comprises a variable-volume pressure vessel having a biased wall to assist in maintaining reduced pressure.

Assignments (2)

Continuity (4)

References Cited (212)