Systems for hydrating defibrillation electrodes

• US 9,072,885 B2
• Filed: 09/27/2012
• Issued: 07/07/2015
• Est. Priority Date: 09/27/2012
• Status: Active Grant

• Current Assignee: Kpr U.S., LLC (Cardinal Health, Inc.)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Garstka, Erick, Copp-Howland, Warren W
• Primary Examiner(s): Patel, Niketa
• Assistant Examiner(s): LEVICKY, WILLIAM J
• Application Number:
  US13/628,063
• Publication Number:
  US 20140088657A1
• Time in Patent Office: 1,013 Days
• Field of Search: 607/5, 607/7, 607/153, 607/142
• US Class Current: 1/1
• CPC Class Codes: A61N 1/046 Specially adapted for shock therapy, e.g. defibrillation
• CPC Class Codes: A61N 1/0472 Structure-related aspects
• CPC Class Codes: A61N 1/0492 Patch electrodes A61N1/0412, A61N1/0428 take precedence
• CPC Class Codes: A61N 1/0496 characterised by using specific chemical compositions, e.g. hydrogel compositions, adhesives
• CPC Class Codes: A61N 1/3904 External heart defibrillators [EHD]

Abstract

According to an aspect of the present disclosure, an automated external defibrillator is configured to deliver one or both of electrical pulses and shocks to a heart of a patient during a cardiac emergency. The defibrillator includes a defibrillator electrode delivery system and a hydrating system. The defibrillator electrode delivery system includes a pair of defibrillation electrode pads. Each pad supports a hydrogel to facilitate the deliverance of one or both of electrical pulses and shocks to a patient. The hydrating system includes a fluid container that maintains a fluid that hydrates the hydrogel over a predetermined time period to prolong the effectiveness of the hydrogel.

Claims

1. An automated external defibrillator configured to deliver electrical pulses and/or shocks to a heart of a patient during a cardiac emergency, the defibrillator comprising:

a housing;

a fluid container supported by the housing and configured to maintain a fluid;

a mesh overlying the fluid and fixedly supported by the fluid container; and

a pair of defibrillation electrode pads removably supported by the mesh, each defibrillation electrode pad supporting a hydrogel,

wherein the fluid hydrates the hydrogel and wherein the mesh is in fluid communication with the fluid.

2. The defibrillator according to claim 1, wherein the mesh includes a fluid permeable material.

3. The defibrillator according to claim 1, wherein the mesh defines a plurality of micro pores.

4. The defibrillator according to claim 1, wherein the fluid is water.

5. The defibrillator according to claim 1, wherein the housing includes an energy source, each defibrillation electrode pad being electrically coupled to the energy source to selectively enable the deliverance of electrical pulses and/or shocks to a patient.

6. The defibrillator according to claim 5, wherein at least one of the defibrillation electrode pads are fixedly electrically coupled to the energy source.

7. The defibrillator according to claim 5, wherein the housing further supports an electrical connector, a battery, and a high voltage circuitry, and wherein each defibrillation electrode pad is pre-connected to the electrical connector of the housing so that each defibrillation electrode pad is in electrical communication with the battery and the high voltage circuitry.

8. The defibrillator according to claim 1 further comprising a refill conduit in fluid communication with the fluid container to enable introduction of the fluid into the fluid container.

9. The defibrillator according to claim 1, wherein, after a predetermined time period, the fluid will diminish as the fluid hydrates the hydrogel.

10. An automated external defibrillator configured to deliver electrical pulses and/or shocks to a heart of a patient during a cardiac emergency, the defibrillator comprising:

a housing supporting an electrical connector, a battery, and high voltage circuitry;

a fluid container supported by the housing and configured to maintain a fluid;

a mesh overlying the fluid and fixedly supported by the fluid container; and

a pair of defibrillation electrode pads removably supported by the mesh, each defibrillation electrode pad supporting a hydrogel and being pre-connected to the electrical connector of the housing so that each defibrillation electrode pad is in electrical communication with the battery and the high voltage circuitry,

wherein the fluid hydrates the hydrogel to prolong the effectiveness of the hydrogel and wherein the mesh is in fluid communication with the fluid.

11. The defibrillator according to claim 10, wherein the mesh includes a fluid permeable material.

12. The defibrillator according to claim 10, wherein the fluid is water.

13. The defibrillator according to claim 10 further comprising a refill conduit in fluid communication with the fluid container to enable introduction of the fluid into the fluid container.

14. The defibrillator according to claim 10, wherein the mesh defines a plurality of micro pores.