Larry S Burcham

US Patent:

46854673, Aug 11, 1987

Filed:

Jul 10, 1985

Appl. No.:

6/753411

Inventors:

James V. Cartmell - Dayton OH
Michael J. Allaire - Dayton OH
Larry R. Burcham - Dayton OH
Charles T. Patrick - Dayton OH

Assignee:

American Hospital Supply Corporation - Evanston IL

International Classification:

A61B 504

US Classification:

128640

Abstract:

A medical electrode assembly which is otherwise free of metal in the area of attachment to a patient so as to be X-ray transparent in such area has a conductive plastic electrode conductor with a silver plated and chlorided coating of a thickness between 0. 02 and 0. 08 mil. The assembly also has a lead wire formed from an elongate cable having carbon fibers in a low density polymeric jacket and a conductive plastic connector having an opening for gripping a stud formed by the conductive plastic electrode conductor.

US Patent:

46996796, Oct 13, 1987

Filed:

Oct 16, 1986

Appl. No.:

6/920029

Inventors:

James V. Cartmell - Dayton OH
Larry R. Burcham - Dayton OH
Michael L. Wolf - West Milton OH

Assignee:

American Hospital Supply Corporation - Evanston IL

International Classification:

A61B 504
B32B 3106
B32B 3118

US Classification:

156242

Abstract:

A medical electrode intended for short term use has a disposable electrode pad provided with a socket and a reusable electrode conductor which is attached to a lead wire and which has a ridged body adapted to enter and be retained by the socket. The pad includes a pair of spaced foam sheets with patient-contacting adhesive layers on their lower surfaces. An electrolyte gel matrix, preferably formed from conductive adhesive urethane hydrogel, is located between the foam sheets. The socket is formed in a relatively stiff socket plate that overlies the gel matrix and the foam sheets. The socket includes a bore located over the gel matrix shaped to receive the electrode conductor, which is slightly larger than the bore, and may optionally include outwardly extending slits projecting from the bore. A method of manufacturing a strip of the electrode pads on a release liner on a continuous basis is disclosed. In a modification for longer term monitoring uses, the electrode pads are constructed to confine the gel matrix to avoid gel dry out and the socket and the conductor are provided with a cooperating key and keyway for restraining relative movements therebetween.

US Patent:

46356428, Jan 13, 1987

Filed:

Jul 18, 1985

Appl. No.:

6/756752

Inventors:

James V. Cartmell - Dayton OH
Larry R. Burcham - Dayton OH
Michael L. Wolf - West Milton OH

Assignee:

American Hospital Supply Corporation - Evanston IL

International Classification:

A61B 504

US Classification:

128639

Abstract:

A medical electrode intended for short term use has a disposable electrode pad provided with a socket and a reusable electrode conductor which is attached to a lead wire and which has a ridged body adapted to enter and be retained by the socket. The pad includes a pair of spaced foam sheets with patient-contacting adhesive layers on their lower surfaces. An electrolyte gel matrix, preferably formed from conductive adhesive urethane hydrogel, is located between the foam sheets. The socket is formed in a relatively stiff socket plate that overlies the gel matrix and the foam sheets. The socket includes a bore located over the gel matrix shaped to receive the electrode conductor, which is slightly larger than the bore, and may optionally include outwardly extending slits projecting from the bore. A method of manufacturing a strip of the electrode pads on a release liner on a continuous basis is disclosed. In a modification for longer term monitoring uses, the electrode pads are constructed to confine the gel matrix to avoid gel dry out and the socket and the conductor are provided with a cooperating key and keyway for restraining relative movements therebetween.

US Patent:

48279390, May 9, 1989

Filed:

Mar 14, 1988

Appl. No.:

7/170129

Inventors:

James V. Cartmell - Dayton OH
Larry R. Burcham - Dayton OH
Michael L. Wolf - West Milton OH

Assignee:

Baxter International Inc. - Deerfield IL

International Classification:

A61B 504

US Classification:

128640

Abstract:

A medical electrode intended for short term use has a disposable electrode pad provided with a socket and a reusable electrode conductor which is attached to a lead wire and which has a ridged body adapted to enter and be retained by the socket. The pad includes a pair of spaced foam sheets with patient-contacting adhesive layers on their lower surfaces. An electrolyte gel matrix, preferably formed from conductive adhesive urethane hydrogel, is located between the foam sheets. The socket is formed in a relatively stiff socket plate that overlies the gel matrix and the foam sheets. The socket includes a bore located over the gel matrix shaped to receive the electrode conductor, which is slightly larger than the bore, and may optionally include outwardly extending slits projecting from the bore. A method of manufacturing a strip of the electrode pads on a release liner on a continuous basis is disclosed. In a modification for longer term monitoring uses, the electrode pads are constructed to confine the gel matrix to avoid gel dry out and the socket and the conductor are provided with a cooperating key and keyway for restraining relative movements therebetween.