US4799480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for electrosurgical apparatus
Assignee: Conmed Corp
•
Filing: 1987-08-04
•
Granted: 1989-01-24
•
Expires: 2007-08-04
Abstract
Abstract An electrode for use with electrosurgical apparatus is provided which establishes capacitive coupling with the skin of a patient. The electrode includes a conductive plate connected to the electrosurgical apparatus with an insulating layer disposed in contact with the conductive plate and on the opposite face of the insulator there is provided conductive material in the form of a plurality of discreet islands of conductive adhesive material. The islands of conductive adhesive material are in contact with the skin of the patient and provide a plurality of independent current paths providing substantially uniform current flow from each element of the skin in contact with the islands of conductive material.
Inventors
- 👤 William W. Abraham
- 👤 John S. Gentelia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:50
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/16; A61B2018/167
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
84 words
A skin current conducting electrode comprising a conductive element adapted to be connected to a current generating unit, an insulator having one surface thereof in contact with one entire surface of said conductive element, a plurality of discrete conductive elements disposed on the opposite surface of said insulator whereby when said discrete conductive elements are disposed in contact with the skin of a patient each area of the skin of a patient contacted by the individual conductive element forms a largely independent current path.
Claim 2
Dependent Claim
84 words
A skin current conducting electrode comprising a conductive element adapted to be connected to a current generating unit, an insulator having one surface thereof in contact with one entire surface of said conductive element, a plurality of discrete conductive elements disposed on the opposite surface of said insulator whereby when said discrete conductive elements are disposed in contact with the skin of a patient each area of the skin of a patient contacted by the individual conductive element forms a largely independent current path.
Claim 3
Dependent Claim
30 words
A skin current conducting electrode according to claim 1 wherein said discrete conductive elements are formed of conductive adhesive material to adhere individually to discrete skin areas of a patient.
Claim 4
Dependent Claim
19 words
A skin current conducting electrode according to claim 1 wherein said discrete conductive elements are formed of conductive gel.
Claim 5
Dependent Claim
25 words
A skin current conducting dispersive electrode according to claim 1 wherein said discrete conductive elements range in size from 0.1 to 10 cm 2 .
Claim 6
Dependent Claim
25 words
A skin current conducting electrode according to claim 1 wherein said insulator comprises a plastic film having a thickness of from 1 to 75 microns.
Claim 7
Dependent Claim
17 words
A skin current conducting electrode according to claim 1 wherein said conductive element comprises a foil plate.
Claim 8
Dependent Claim
21 words
A skin current conducting electrode according to claim 1 wherein said conductive element comprises a conductive film deposited on said insulator.
Claim 9
Dependent Claim
24 words
A skin current conducting electrode according to claim 1 wherein said discrete conductive elements comprise conductive adhesive islands of approximately 1 cm 2 .
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-24 | 1992-07-25 | 1993-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-24 | 1996-07-25 | 1997-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-24 | 2000-07-25 | 2001-01-24 | $7700.00 | Window Closed / Lapsed |