WO1996000599B1 - Vented electrode - Google Patents

Vented electrode

Info

Publication number
WO1996000599B1
WO1996000599B1 PCT/US1995/008040 US9508040W WO9600599B1 WO 1996000599 B1 WO1996000599 B1 WO 1996000599B1 US 9508040 W US9508040 W US 9508040W WO 9600599 B1 WO9600599 B1 WO 9600599B1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
electrode
impedance
decreasing
permeable
Prior art date
Application number
PCT/US1995/008040
Other languages
French (fr)
Other versions
WO1996000599A1 (en
Filing date
Publication date
Priority claimed from US08/268,629 external-priority patent/US5456710A/en
Application filed filed Critical
Priority to EP95925315A priority Critical patent/EP0767692B1/en
Priority to DE69504842T priority patent/DE69504842T2/en
Priority to JP8503378A priority patent/JPH10507651A/en
Priority to AU29489/95A priority patent/AU2948995A/en
Publication of WO1996000599A1 publication Critical patent/WO1996000599A1/en
Publication of WO1996000599B1 publication Critical patent/WO1996000599B1/en

Links

Abstract

Disclosed in an electrode (10, 60) for placement upon the skin of a patient (12) to deliver electrical pulses from medical electronic equipment (16) to the patient. The electrode (10, 60) includes an electrically conductive layer (24, 74) having a skin-facing side and an upper side. An impedance-decreasing layer (32, 82) is adjacent a substantial portion of the skin-facing side of the conductive layer (24, 74). A substantially electrically nonconductive backing layer (18, 68) is adjacent the upper surface of the conductive layer (24, 74), the backing layer (18, 68) being substantially impermeable to the impedance-decreasing layer (32, 82). A gas-permeable layer (20, 70) is between the backing layer (18, 68) and the conductive layer (24, 74). Finally, a vent (22, 72) is provided for venting gas formed between the impedance-decreasing layer (32, 82) and the conductive layer (24, 74) to the environment.

Claims

AMENDED CLAIMS[received by the International Bureau on 22 January 1996 (22.01.96); original claims 1, 10 and 15 amended; remaining claims unchanged (3 pages)]The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. An electrode for placement upon the skin of a patient to deliver electrical pulses from medical electronic equipment to the patient, the electrode comprising:
(a) an electrically conductive layer having a skin-facing side and an upper side;
(b) an impedance-decreasing layer disposed on the skin-facing side of the conductive layer;
(c) a substantially electrically nonconductive backing layer disposed on the upper surface of the conductive layer, the backing layer being substantially impermeable to the impedance-decreasing layer; and
(d) vent means for venting gas formed between the impedance-decreasing layer and the backing layer.
2. The electrode of Claim 1, wherein the conductive layer is permeable to gases.
3. The electrode of Claim 2, wherein the vent means comprises a gas- permeable layer between the conductive layer and the backing layer.
4. The electrode of Claim 3, wherein the impedance-decreasing layer includes an outer periphery, and the vent means includes a portion of the gas- permeable layer extending beyond the periphery of the impedance-decreasing layer.
5. The electrode of Claim 1, wherein the conductive layer is perforated.
6. The electrode of Claim 1, wherein the conductive layer comprises a mesh.
7. The electrode of Claim 1, further comprising a gas-permeable layer positioned between the conductive layer and the backing layer.
8. The electrode of Claim 7, wherein the gas-permeable layer comprises a nonwoven material.
9. The electrode of Claim 8, wherein the nonwoven material comprises polyester.
10. An electrode for placement upon the skin of a patient to deliver electrical pulses from medical electronic equipment to the patient, the electrode comprising:
(a) an electrically conductive metallic sheet having a skin-facing side and an upper side, the electrically conductive sheet being permeable to gases;
(b) an impedance-decreasing layer disposed on the skin-facing side of the conductive sheet; and
(c) a substantially electrically nonconductive backing layer disposed on the upper surface of the conductive sheet, the backing layer being substantially impermeable to the impedance-decreasing layer.
11. The electrode of Claim 10, wherein the backing layer comprises a material permeable to gases.
12. The electrode of Claim 10, further comprising a gas-permeable layer between the conductive layer and the backing layer, the gas-permeable layer including a vented portion for permitting gaseous exchange between the gas-permeable layer and the environment.
13. The electrode of Claim 12, wherein the gas-permeable layer comprises a nonwoven material.
14. The electrode of Claim 12, wherein the nonwoven material comprises polyester.
15. The electrode of Claim 12, wherein the impedance-decreasing layer includes an outer periphery, and the gas-permeable layer includes a portion extending beyond the periphery of the impedance-decreasing layer.
16. The electrode of Claim 10, wherein the impedance-decreasing layer includes an outer periphery, and the conductive layer includes a portion extending beyond the periphery of the impedance-decreasing layer.
17. The electrode of Claim 16, further comprising an electrical coupler connected to the portion of the conductive layer extending beyond the periphery of -21 -
the impedance-decreasing layer for electrically connecting the conductive layer to the medical electronic equipment.
18. The electrode of Claim 10, wherein electrical coupling between the conductive layer and the skin of the patient substantially only occurs through the impedance-decreasing layer.
PCT/US1995/008040 1994-06-30 1995-06-29 Vented electrode WO1996000599A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP95925315A EP0767692B1 (en) 1994-06-30 1995-06-29 Vented electrode
DE69504842T DE69504842T2 (en) 1994-06-30 1995-06-29 ELECTRODE WITH DEGASSING
JP8503378A JPH10507651A (en) 1994-06-30 1995-06-29 Electrodes with vents
AU29489/95A AU2948995A (en) 1994-06-30 1995-06-29 Vented electrode

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/268,629 US5456710A (en) 1994-06-30 1994-06-30 Vented electrode
US08/268,629 1994-06-30

Publications (2)

Publication Number Publication Date
WO1996000599A1 WO1996000599A1 (en) 1996-01-11
WO1996000599B1 true WO1996000599B1 (en) 1996-02-15

Family

ID=23023822

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/008040 WO1996000599A1 (en) 1994-06-30 1995-06-29 Vented electrode

Country Status (7)

Country Link
US (1) US5456710A (en)
EP (1) EP0767692B1 (en)
JP (1) JPH10507651A (en)
AT (1) ATE171079T1 (en)
AU (1) AU2948995A (en)
DE (1) DE69504842T2 (en)
WO (1) WO1996000599A1 (en)

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