Instillation cartridge and therapy system for negative-pressure therapy and instillation therapy

Patent metadata

Field	Value
Publication number	US-2016015873-A1
Application number	US-201514794340-A
Country	US
Kind code	A1
Filing date	Jul 8, 2015
Priority date	Jul 18, 2014
Publication date	Jan 21, 2016
Grant date	—

Abstract

Systems, methods, and apparatuses for providing installation therapy and negative-pressure therapy are described. The apparatus includes a housing and a moveable barrier disposed in the housing to form a dosing chamber and a pressure chamber. The apparatus also includes a therapy conduit configured to be fluidly coupled to a pressure source and to a canister. The apparatus further includes a fluid inlet fluidly coupled to the dosing chamber and configured to be fluidly coupled to a fluid source and a fluid outlet fluidly coupled to the dosing chamber and configured to be fluidly coupled to a dressing. A pressure inlet is fluidly coupled to the therapy conduit and the pressure chamber; and a check valve is disposed in the therapy conduit.

First claim

1 . An apparatus for providing instillation therapy and negative-pressure therapy with a pressure source, the apparatus comprising:
a therapy conduit configured to be fluidly coupled on a first end to the pressure source and on a second end to a canister; a housing having a fluid inlet configured to be fluidly coupled to a fluid source, a fluid outlet configured to be fluidly coupled to a dressing, and a pressure inlet fluidly coupled to the therapy conduit; a moveable barrier disposed in the housing to form a dosing chamber and a pressure chamber, the dosing chamber and the pressure chamber fluidly isolated from each other, the fluid inlet and the fluid outlet in fluid communication with the dosing chamber, and the pressure inlet in fluid communication with the pressure chamber; and a check valve fluidly coupled to the therapy conduit and the pressure inlet.

2 . The apparatus of claim 1 , wherein the check valve is a reed valve.

3 . The apparatus of claim 1 , wherein the apparatus is configured to be coupled between the pressure source and the canister.

4 . The apparatus of claim 1 , further comprising a pressure-sensing conduit configured to be fluidly coupled to the canister and a pressure sensor.

5 . The apparatus of claim 1 , wherein the moveable barrier comprises a diaphragm.

6 . The apparatus of claim 1 , wherein the moveable barrier comprises a piston.

7 . The apparatus of claim 1 , further comprising a biasing element coupled to the moveable barrier and operable to move the moveable barrier from a discharge position to a charge position.

8 . The apparatus of claim 7 , wherein the biasing element comprises a spring.

9 . The apparatus of claim 7 , wherein:
the biasing element comprises a spring; the spring is in a loaded position when the moveable barrier is in the discharge position; and the spring is in an unloaded position when the moveable barrier is in the charge position.

10 . The apparatus of claim 7 , wherein:
the biasing element comprises a spring; the spring is in a loaded position when the moveable barrier is in the charge position; and the spring is in an unloaded position when the moveable barrier is in the discharge position.

11 . The apparatus of claim 1 , further comprising a fluid inlet valve fluidly coupled to the fluid inlet.

12 . The apparatus of claim 1 , further comprising a fluid outlet valve fluidly coupled to the fluid outlet.

13 . The apparatus of claim 1 , further comprising:
a fluid inlet valve fluidly coupled to the fluid inlet; and a fluid outlet valve fluidly coupled to the fluid outlet.

14 . The apparatus of claim 11 , wherein the fluid inlet valve is a check valve permitting fluid flow into the dosing chamber.

15 . The apparatus of claim 12 , wherein the fluid outlet valve is a check valve permitting fluid flow out of the dosing chamber.

16 . The apparatus of claim 11 , wherein:
the fluid inlet valve is a check valve permitting fluid flow into the dosing chamber; and the fluid outlet valve is a check valve permitting fluid flow out of the dosing chamber.

17 . A therapy system for providing instillation therapy and negative-pressure therapy, the system comprising:
a pump having a pump inlet and a pump outlet, the pump configured to draw fluid into the pump inlet and move fluid out of the pump outlet; a fluid source; an adapter coupled to the pump and the fluid source, the adapter comprising:
a therapy conduit configured to be fluidly coupled on a first end to the pump and on a second end to a canister;
a housing having a fluid inlet configured to be fluidly coupled to the fluid source, a fluid outlet configured to be fluidly coupled to a dressing, and a pressure inlet fluidly coupled to the therapy conduit;
a moveable barrier disposed in the housing to form a dosing chamber and a pressure chamber, the dosing chamber and the pressure chamber fluidly isolated from each other, the fluid inlet and the fluid outlet in fluid communication with the dosing chamber, and the pressure inlet in fluid communication with the pressure chamber; and
a check valve fluidly coupled to the therapy conduit and the pressure inlet; and
a selector valve fluidly coupled to the pump inlet and the pump outlet and configured to be fluidly coupled to the therapy conduit, the selector valve having a first position fluidly coupling the pump inlet to the therapy conduit and a second position fluidly coupling the pump outlet to the therapy conduit.

18 . The system of claim 17 , wherein the selector valve comprises a four way valve.

19 . The system of claim 17 , wherein the check valve is a reed valve.

20 . The system of claim 17 , wherein the system is configured to be coupled between the pump and the canister.

21 . The system of claim 17 , further comprising a pressure-sensing conduit configured to be fluidly coupled to the canister and a pressure sensor.

22 . The system of claim 17 , wherein the moveable barrier comprises a diaphragm.

23 . The system of claim 17 , wherein the moveable barrier comprises a piston.

24 . The system of claim 17 , further comprising a biasing element coupled to the moveable barrier and operable to move the moveable barrier from a charge position to a discharge position.

25 . The system of claim 24 , wherein the biasing element comprises a spring.

26 . The system of claim 24 , wherein:
the biasing element comprises a spring; the spring is in a loaded position when the moveable barrier is in the discharge position; and the spring is in an unloaded position when the moveable barrier is in the charge position.

27 . The system of claim 24 , wherein:
the biasing element comprises a spring; the spring is in a loaded position when the moveable barrier is in the charge position; and the spring is in an unloaded position when the moveable barrier is in the discharge position.

28 . The system of claim 17 , further comprising a fluid inlet valve fluidly coupled to the fluid inlet.

29 . The system of claim 17 , further comprising a fluid outlet valve fluidly coupled to the fluid outlet.

30 . The system of claim 17 , further comprising:
a fluid inlet valve fluidly coupled to the fluid inlet; and a fluid outlet valve fluidly coupled to the fluid outlet.

31 . The system of claim 28 , wherein the fluid inlet valve is a check valve permitting fluid flow into the dosing chamber.

32 . The system of claim 29 , wherein the fluid outlet valve is a check valve permitting fluid flow out of the dosing chamber.

33 . The system of claim 28 , wherein:
the fluid inlet valve is a check valve permitting fluid flow into the dosing chamber; and the fluid outlet valve is a check valve permitting fluid flow out of the dosing chamber.

34 . A method for providing instillation therapy and negative-pressure therapy, the method comprising:
providing a pressure source having a selector valve; providing a canister; providing a fluid source; providing a dressing; providing an adapter comprising:
a therapy conduit;
a housing having a fluid inlet, a fluid outlet, and a pressure inlet fluidly coupled to the therapy conduit;
a moveable barrier disposed in the housing to form a dosing chamber and a pressure chamber, the dosing chamb

Assignees

• Kci Licensing Inc

Inventors

• Robinson Timothy Mark
• Locke Christopher Brian
• Luckemeyer James A

Classifications

• A61M3/0212

  after use · CPC title

• A61M3/0216

  Pressure · CPC title

• A61M3/022

  Volume; Flow rate · CPC title

• A61M3/0208

  before use · CPC title

• A61M5/14224

  Diaphragm type · CPC title