Pressure resistant conductive fluid containment

Patent metadata

Field	Value
Publication number	US-11951321-B2
Application number	US-202117175868-A
Country	US
Kind code	B2
Filing date	Feb 15, 2021
Priority date	Apr 2, 2014
Publication date	Apr 9, 2024
Grant date	Apr 9, 2024

Abstract

A conductive fluid reservoir can be used to dispense conductive fluid to increase electrical connectivity between an electrode of a defibrillator and a patient. The reservoir includes a container that holds the conductive fluid, one or more outlets on the container, and an inflatable pouch located at least partially within the container. The inflatable pouch is capable of being inflated from a deflated state to an inflated state. In the deflated state, a free end of the inflatable pouch covers the one or more outlets. In the inflated state, the free end of the inflatable pouch is removed from the one or more outlets such that the conductive fluid is allowed to flow out of the container via the one or more outlets. Inflating the inflatable pouch causes the conductive fluid to be dispensed from the reservoir.

First claim

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A conductive fluid dispenser for use with an electrotherapy system, the device comprising:
a reservoir layer;
a plurality of reservoirs disposed on the reservoir layer, each of the plurality of reservoirs comprising a pouch disposed within a volume of a conductive fluid, wherein at least one of the plurality of reservoirs surrounds a seal;
a controller connected to at least one reservoir in the plurality of reservoirs, the controller configured to control selective delivery of a pressurized fluid to increase a pressure inside the at least one reservoir; and
at least one conductive surface configured to come into contact with the conductive fluid when the pouch expands responsive to the increased pressure inside the at least one reservoir so that the conductive fluid evacuates from the at least one reservoir, the conductive surface configured to transfer a therapeutic current to a body of a patient,
wherein a source of the pressurized fluid comprises one of either a gas generator, a pressurized fluid container, or a combination of gas generator and pressurized fluid container.

2. The conductive fluid dispenser of claim 1 , further comprising:
an inlet of the at least one reservoir connected to the source of pressurized fluid to deliver the pressurized fluid.

3. The conductive fluid dispenser of claim 2 , wherein
the source of the pressurized fluid is fluidly coupled to the inlet of the at least one reservoir or directly to the volume of the conductive fluid.

4. The conductive fluid dispenser of claim 1 , further comprising:
one or more outlets disposed on the at least one reservoir to release the conductive fluid to the at least one conductive surface.

5. The conductive fluid dispenser of claim 3 , further comprising:
a fluid conduit formed between the inlet and the one or more outlets to flow the conductive fluid to the one or more outlets when the pressurized fluid flows into the at least one reservoir.

6. The conductive fluid dispenser of claim 1 , wherein
the increased pressure inside of the at least one reservoir breaks the seal on the pouch to release the conductive fluid to the at least one conductive surface.

7. The conductive fluid dispenser of claim 1 , wherein
the source of the fluid pressure is removably coupled to the at least one reservoir.

8. The conductive fluid dispenser of claim 1 , wherein
the one or more outlets are arranged linearly.

9. A conductive fluid reservoir, comprising:
a reservoir layer;
a reservoir disposed on the reservoir layer comprising a pouch and a volume of a conductive fluid, wherein the pouch surrounds a seal; and
at least one conductive surface configured to come into contact with the conductive fluid when the seal is broken so that the conductive fluid evacuates from the reservoir, the conductive surface configured to transfer a therapeutic current to a body of a patient.

10. The conductive fluid reservoir of claim 9 , further comprising:
a controller connected to the reservoir, the controller configured to control selective delivery of a pressurized fluid to increase a pressure inside the reservoir to break the seal.

11. The conductive fluid reservoir of claim 10 , further comprising:
a source of the pressurized fluid is removably coupled to the reservoir.

12. The electrode system of claim 11 , wherein the source of pressurized fluid is a gas generator.

13. The electrode system of claim 11 , wherein the source of pressurized fluid is a pressurized fluid container.

14. An electrode system comprising:
a gel deployment receptacle configured to release a conductive gel onto a body of a subject, the gel deployment receptacle includes a container defining a gel reservoir and a pouch disposed within the gel reservoir, the gel reservoir comprises the conductive gel, the pouch surrounds a seal; and
a fluid source in fluid communication with the gel deployment receptacle.

15. The electrode system of claim 14 , wherein
a controller connected to the gel reservoir, the controller configured to control selective delivery of a pressurized fluid to increase a pressure inside the gel reservoir to break the seal.

16. The electrode system of claim 14 , further comprising:
the fluid source is removably coupled to the reservoir.

17. The electrode system of claim 14 , wherein
the fluid source comprises one of either a gas generator, a pressurized fluid container, or a combination of gas generator and pressurized fluid container.

18. The electrode system of claim 14 , wherein
the electrode system is disposed within a wearable defibrillator device and comprises a plurality of therapy electrodes configured to deliver at least one of defibrillation shocks to the subject wearing the wearable defibrillator device.

19. The electrode system of claim 14 , wherein the fluid source is a gas generator.

20. The electrode system of claim 14 , wherein the fluid source is a pressurized fluid container.

Assignees

• West Affum Holdings Dac

Inventors

• Meeker Dallas

Classifications

• A61N1/3968 Primary

  Constructional arrangements, e.g. casings (A61N1/375 takes precedence) · CPC title

• A61N1/046

  Specially adapted for shock therapy, e.g. defibrillation · CPC title

• A61N1/0492

  Patch electrodes (A61N1/0412, A61N1/0428 take precedence) · CPC title

• A61N1/3904

  External heart defibrillators [EHD] · CPC title