US4653501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical electrode with reusable conductor
Assignee: NDM Acquisition Corp
•
Filing: 1986-04-17
•
Granted: 1987-03-31
•
Expires: 2006-04-17
Abstract
Abstract A disposable electrode pad is provided with a socket for a reusable electrode conductor attached to a lead wire. The pad includes a socket plate having a release coated top surface and overlying a frame having a bore filled with a gel matrix. The pad further includes a flexible clamp plate, part of which is strongly adhered to the frame and the rest of which is adhered to the release coated surface of the socket plate. The socket plate is provided with a bore used as a socket for a reusable, low profile electrode conductor which is fixedly attached to a lead wire having a jack for connection to external monitoring equipment. In use, the electrode pad is applied to the skin of a subject, the releasable part of the clamp plate is peeled away from the socket plate, the electrode conductor is inserted into the bore of the socket plate, and the clamp plate re-adhered to the socket plate in covering relation to the electrode conductor and the end of the lead wire attached thereto. Accordingly, the end of the lead wire and the electrode conductor are securely held in place relative to the gel matrix. Embodiments for both monitoring and stimulation purposes and alternative electrode conductor/lead wire embodiments are disclosed.
Inventors
- 👤 James V. Cartmell
- 👤 William E. Storms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:09
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/251; A61B5/257; A61B2562/00; A61B2562/02; A61B2562/0209; A61B2562/0217
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
105 words
A medical electrode assembly comprising: a reusable lead wire assembly; and a disposable electrode pad having an electrolyte gel matrix, socket means overlying said gel matrix including means for connection of said lead wire assembly to said matrix, a flexible clamp plate overlying said socket means, said clamp plate covering said connection means, means releasably securing said clamp plate to said socket means so that said clamp plate may be peeled away from said socket means sufficiently to uncover said connection means, and means for retaining said clamp plate with the other parts of said pad when it is peeled away from said plate means.
Claim 2
Dependent Claim
105 words
A medical electrode assembly comprising: a reusable lead wire assembly; and a disposable electrode pad having an electrolyte gel matrix, socket means overlying said gel matrix including means for connection of said lead wire assembly to said matrix, a flexible clamp plate overlying said socket means, said clamp plate covering said connection means, means releasably securing said clamp plate to said socket means so that said clamp plate may be peeled away from said socket means sufficiently to uncover said connection means, and means for retaining said clamp plate with the other parts of said pad when it is peeled away from said plate means.
Claim 3
Dependent Claim
40 words
The medical electrode assembly of claim 1 wherein said pad further includes a frame having a bore filled by said gel matrix, adhesive means securing said socket means to said frame, and wherein said retaining means comprises said adhesive means.
Claim 4
Dependent Claim
42 words
The medical electrode assembly of claim 2 wherein said means releasably securing said clamp plate to said socket means comprises an adhesive on the surface of said clamp plate facing said socket plate, and wherein said retaining means further comprises said adhesive.
Claim 5
Dependent Claim
24 words
The medical electrode assembly of claim 1 wherein said socket means comprises a plastic socket plate having a socket therein overlying said gel matrix.
Claim 6
Dependent Claim
31 words
The medical electrode assembly of claim 4 wherein said lead wire assembly comprises a lead wire and electrode conductor means fixedly attached to said lead wire for engaging said gel matrix.
Claim 7
Dependent Claim
40 words
The medical electrode assembly of claim 5 wherein said electrode conductor means has a shank and wherein said socket comprises a bore extending through said socket plate through which said shank is releasably inserted into engagement with said gel matrix.
Claim 8
Dependent Claim
40 words
The medical electrode assembly of claim 6 wherein said pad further includes a frame having a bore filled by said gel matrix, adhesive means securing said socket means to said frame, and wherein said retaining means comprises said adhesive means.
Claim 9
Dependent Claim
42 words
The medical electrode assembly of claim 7 wherein said means releasably securing said clamp plate to said socket means comprises an adhesive on the surface of said clamp plate facing said socket plate, and wherein said retaining means further comprises said adhesive.
Claim 10
Dependent Claim
58 words
The medical electrode assembly of claim 5 wherein said electrode conductor has a disc-like top plate and a shank depending from said top plate, said lead wire being connected to said top plate; and wherein said socket comprises a bore extending through said socket plate through which said shank is releasably inserted into engagement with said gel matrix.
Claim 11
Dependent Claim
22 words
The medical electrode assembly of claim 9 wherein said lead wire comprises a conductor fixedly attached to said top plate by adhesive.
Claim 12
Dependent Claim
23 words
The medical electrode assembly of claim 9 wherein said lead wire comprises a conductor embedded in an an edge of said top plate.
Claim 13
Dependent Claim
16 words
The medical electrode assembly of claim 9 wherein said electrode conductor comprises a conductive plastic body.
Claim 14
Dependent Claim
39 words
The medical electrode assembly of claim 12 wherein said conductive plastic body has a bore extending therethrough and said electrode conductor further comprises a silver plated non-conductive plastic means press fit within said bore for engaging said gel matrix.
Claim 15
Dependent Claim
16 words
The medical electrode assembly of claim 12 wherein said conductive plastic body has a silver coating.
Claim 16
Dependent Claim
40 words
The medical electrode assembly of claim 9 wherein said pad further includes a frame having a bore filled by said gel matrix, adhesive means securing said socket means to said frame, and wherein said retaining means comprises said adhesive means.
Claim 17
Dependent Claim
26 words
The medical electrode assembly of claim 15 wherein said shank has a length approximately equal to the combined thicknesses of said socket plate and said frame.
Claim 18
Dependent Claim
117 words
For use with a reusable electrode conductor, a disposable medical electrode pad comprising an electrolyte gel matrix; a socket plate overlying said gel matrix, said socket plate comprising a sheet of plastic having a socket therein overlying said gel matrix for receiving an electrode conductor, said socket comprising a bore extending through said socket plate; a clamp plate overlying said socket plate and covering said bore; means releasably securing said clamp plate to said socket means so that said clamp plate may be pulled away from said socket plate sufficiently to uncover said bore; and means for retaining said clamp plate with the other parts of said pad when it is pulled away from said plate means.
Claim 19
Dependent Claim
117 words
For use with a reusable electrode conductor, a disposable medical electrode pad comprising an electrolyte gel matrix; a socket plate overlying said gel matrix, said socket plate comprising a sheet of plastic having a socket therein overlying said gel matrix for receiving an electrode conductor, said socket comprising a bore extending through said socket plate; a clamp plate overlying said socket plate and covering said bore; means releasably securing said clamp plate to said socket means so that said clamp plate may be pulled away from said socket plate sufficiently to uncover said bore; and means for retaining said clamp plate with the other parts of said pad when it is pulled away from said plate means.
Claim 20
Dependent Claim
40 words
The electrode pad of claim 17 further comprising a frame having a bore filled by said gel matrix, said retaining means comprising means for securing said clamp plate to said frame, and means securing said socket plate to said frame.
Claim 21
Dependent Claim
15 words
The electrode of claim 18 wherein said frame comprises a sheet of flexible foam plastic.
Claim 22
Dependent Claim
22 words
The electrode of claim 18 wherein said frame has a patient-contacting adhesive on its surface opposite its surface facing said socket plate.
References Cited (Backward Citations)
US4270543A
Cited
WO1980001606A1
Cited
US4319579A
Cited
US4265253A
Cited
US4365634A
Cited
US4331153A
Cited
US4409981A
Cited
US4524775A
Cited
US4490005A
Cited
US4488557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |