IP Library Granted Patent US 7,422,576
Granted Patent B2
US 7,422,576 · App. 10/320,211 · Granted Sep 9, 2008

Localized liquid therapy and thermotherapy device

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Quick Facts
Patent No.
US 7,422,576
App. No.
10/320,211
Granted
Sep 9, 2008
Kind
B2
Abstract

A device for directly applying thermotherapeutic liquid to an area upon the surface of an afflicted patient, and methods of use thereof, are described. In particular a device for applying water-based liquid at a therapeutic temperature directly to an afflicted area in order to create a localized hyperthermia, is presented. The afflicted area may be either on the skin of the patient, or subcutaneous. The device is also effective for disinfection, irrigation, lavage, and the like, when employing a suitable solution. The liquid may also have a mild oxidizing effect, which, if greater upon afflicted than upon non-afflicted cells, would enhance the therapeutic effect in conjunction with the therapy herein described.

Claims (62)

1. A device for applying therapeutic liquid to an afflicted area of a surface of an afflicted patient's body, comprising:

a supply means for supplying a therapeutic liquid;

a return means for returning liquid;

a control means for thermally regulating the therapeutic liquid;

a negative pressure pump operatively coupled to said return means;

an applicator interposed between said supply means and said return means, said applicator being adapted to be secured about said afflicted area;

wherein the applicator comprises a dressing material for placement on the afflicted area and a dressing adhesive covering; and

wherein the negative pressure pump is fluidly connected to the supply means such that liquid is returned to the supply means after being drawn through the applicator.

2. The device according to claim 1 further comprising a reservoir for storing said therapeutic liquid.

3. The device according to claim 1 , wherein the liquid is heated prior to application to the afflicted area.

4. The device according to claim 3 , wherein heated liquid induces a localized hyperthermia in the afflicted area after application of the heated liquid to the afflicted area.

5. The device according to claim 1 , wherein the liquid is cooled prior to application to the afflicted area.

6. The device according to claim 5 , wherein the cooled liquid induces a localized hypothermia in the afflicted area after application of the cooled liquid to the afflicted area.

7. The device according to claim 1 , wherein negative pressure generated by the negative pressure pump underneath the dressing adhesive covering functions to drain the afflicted-area, to secure the dressing material against the afflicted area, and to provide negative pressure wound therapy to the afflicted area.

8. The apparatus of claim 1 , wherein the applicator further comprises a porous pad.

9. An apparatus for applying therapeutic liquid, the apparatus comprising:

a reservoir;

a controller operably connected to the reservoir to regulate a temperature of liquid stored in the reservoir;

an applicator fluidly connected to the reservoir;

a negative pressure pump fluidly connected to the applicator to draw liquid from the reservoir through the applicator;

wherein the applicator further comprises a dressing and an adhesive covering; and

wherein the negative pressure pump is fluidly connected to the reservoir such that liquid is returned to the reservoir after being drawn through the applicator.

10. The apparatus of claim 9 , further comprising a liquid heater exposed to liquid and operably connected to the controller, wherein the controller is operable to regulate power to the liquid heater so that liquid is heated.

11. The apparatus according to claim 10 , wherein:

the applicator is adapted to be positioned about an afflicted area; and

the heated liquid induces a localized hyperthermia in the afflicted area after application of the heated liquid to the afflicted area.

12. The apparatus of claim 9 , wherein the applicator further comprises a porous pad.

13. The apparatus of claim 9 , wherein:

the applicator is adapted to be positioned about an afflicted area; and

the liquid is cooled prior to application to the afflicted area.

14. An apparatus for applying therapeutic liquid, the apparatus comprising:

a reservoir;

an applicator;

a supply line fluidly connected to the reservoir and the applicator;

a negative pressure pump;

a return line fluidly connected to the applicator and the negative pressure pump;

a set-point controller operably coupled to the reservoir to regulate a temperature of therapeutic liquid stored in the reservoir;

wherein the negative pressure pump is operable to draw liquid from the reservoir through the applicator;

wherein the applicator further comprises a dressing and an adhesive covering; and

wherein the negative pressure pump is fluidly connected to the reservoir such that liquid is returned to the reservoir after being drawn through the applicator.

15. The apparatus of claim 14 , further comprising a liquid heater exposed to liquid and operably connected to the set-point controller, wherein the set-point controller is operable to regulate power to the liquid heater so that liquid is heated.

16. An apparatus for applying therapeutic liquid, the apparatus comprising:

a reservoir;

an applicator;

a supply line fluidly connected to the reservoir and the applicator;

a negative pressure pump;

a return line fluidly connected to the applicator and the negative pressure pump;

a set-point controller operably coupled to the reservoir to regulate a temperature of therapeutic liquid stored in the reservoir;

wherein the negative pressure pump is operable to draw liquid from the reservoir through the applicator;

wherein the applicator comprises a top surface, a wall surface, an open bottom, and a receptor; and

wherein the supply line is coupled to the receptor.

17. The apparatus of claim 16 , wherein the negative pressure pump is fluidly connected to the reservoir such that liquid is returned to the reservoir after being drawn through the applicator.

18. The apparatus of claim 16 , further comprising a liquid heater exposed to liquid and operably connected to the set-point controller, wherein the set-point controller is operable to regulate power to the liquid heater so that liquid is heated.

19. A method of creating localized therapeutic hyperthermia, the method comprising:

applying heat to a liquid;

placing an applicator over an afflicted area;

applying a negative pressure to the applicator to provide an engagement between the applicator and the afflicted area and to draw the liquid through the applicator; and

recirculating the liquid through the applicator after the liquid has been drawn through the applicator; and

wherein the applicator includes a dressing and an adhesive covering.

20. The method of claim 19 , further comprising:

measuring a temperature of the liquid; and

adjusting the heat applied to the liquid to maintain the liquid at a therapeutically beneficial temperature.

Assignments (5)
RELEASE OF SECURITY INTEREST IN PATENTS Recorded Nov 7, 2019
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: KCI USA, INC.; KCI LICENSING, INC.
Reel/Frame 050966/0547 →
RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Feb 6, 2017
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: KCI LICENSING, INC., AS GRANTOR; TECHNIMOTION, LLC, A DELAWARE LIMITED LIABILITY COMPANY, AS GRANTOR; SYSTAGENIX WOUND MANAGEMENT (US), INC., A DELAWARE CORPORATION, AS GRANTOR
Reel/Frame 041395/0044 →
LIMITED THIRD LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Oct 7, 2016
From: KCI USA, INC.; LIFECELL CORPORATION; KCI LICENSING, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 040291/0237 →
RELEASE OF SECURITY INTEREST Recorded Sep 21, 2016
From: WILMINGTON TRUST
To: KCI LICENSING, INC.; LIFECELL CORPORATION; KINETIC CONCEPTS, INC.; TECHNIMOTION, LLC
Reel/Frame 040098/0200 →
SECOND LIEN SECURITY AGREEMENT Recorded Sep 21, 2016
From: KCI USA, INC.; LIFECELL CORPORATION; KCI LICENSING, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 040098/0268 →