Claims
- 1. A flexible elongate strip assembly for use in a medical device comprising at least one longitudinally-extending base layer of an insulating material having substantially planar spaced-apart parallel outer and inner surfaces, a plurality of generally planar first pads formed from a conductive material adherent to the outer surface of the base layer in longitudinally spaced-apart positions, each first pad being for use as a conductive surface of an electrode, a plurality of generally planar second pads formed from a conductive material adherent to the inner surface of the base layer in longitudinally spaced-apart positions, the base layer being provided with a plurality of openings extending between the outer and inner surfaces in spaced-apart positions so that at least a portion of each second pad is exposed through the outer surface for use as a conductive surface of an electrode, a plurality of spaced-apart first conductive traces connected to the first pads and adherent to the outer surface so as to be coplanar with the first pads and a plurality of spaced-apart second conductive traces connected to the second pads and adherent to the inner surface so as to be coplanar with the second pads, each trace extending longitudinally of the base layer from the respective pad.
- 2. A strip assembly as in claim 1 wherein the exposed portions of the second pads are generally equal in area.
- 3. A strip assembly as in claim 2 wherein the exposed portion of each second pad has an area ranging from 0.00012 to 0.02000 square inches.
- 4. A strip assembly as in claim 1 wherein the first pads form a first set of pads and wherein the second pads form a second set of pads longitudinally spaced apart from the first set of pads.
- 5. A strip assembly as in claim 1 together with a longitudinally-extending layer of an insulating material overlying the base layer, the longitudinally extending layer provided with a plurality of openings extending therethrough in spaced-apart positions so as to expose therethrough at least a portion of the first and second pads.
- 6. A strip assembly as in claim 5 wherein the exposed portions of the first and second pads are generally equal in area.
- 7. A flexible elongate medical device comprising a flexible elongate member having proximal and distal extremities, a plurality of spaced-apart electrodes, flexible means secured to the distal extremity of the flexible elongate member for supporting said electrodes for movement between first and second positions, the flexible means comprising a flexible elongate strip assembly which includes a base layer having a length, width and thickness in which the width is greater than the thickness, the base layer being formed of an insulating material and having substantially planar spaced-apart parallel outer and inner surfaces, at least one generally planar first pad formed from a conductive material adherent to the outer surface of the base layer for use as a conductive surface of an electrode, at least one generally planar second pad formed from a conductive material adherent to the inner surface of the base layer, the base layer being provided with at least one opening extending between the outer and inner surfaces so as to expose through the outer surface at least a portion of the second first pad for use as a conductive surface of an electrode, a first conductive trace connected to the first pad and adherent to the outer surface so as to be coplanar with the first pad and a second conductive trace connected to the second pad and adherent to the inner surface so as to be coplanar with the second pad, each trace extending longitudinally of the base layer from the respective pad.
- 8. A device as in claim 7 together with leads connected to the traces and extending from the distal extremity to the proximal extremity of the flexible elongate member.
- 9. A device as in claim 8 together with a handle coupled to the proximal extremity of the flexible elongate member and the leads.
- 10. A flexible elongate strip assembly for use in a medical device comprising at least one longitudinally-extending base layer of an insulating material having substantially planar spaced-apart parallel outer and inner surfaces, at least one first pad formed from a conductive material adherent to the outer surface of the base layer and at least one second pad formed from a conductive material adherent to the inner surface of the base layer, the base layer being provided with at least one opening extending between the outer and inner surfaces so as to expose through the outer surface at least a portion of the second pad, a first conductive trace adherent to the outer surface and connected to the first pad and a second conductive trace adherent to the inner surface and connected to the second pad, each first and second trace extending longitudinally of the base layer from the respective pad whereby the first pad and the exposed portion of the second pad each serve as a conductive electrode surface.
- 11. A strip assembly as in claim 10 wherein the first and second pads are generally coplanar with the base layer.
- 12. A strip assembly as in claim 11 wherein the first pad and first trace are generally coplanar and the second pad and second trace are generally coplanar.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of application Ser. No. 08/127,699 filed Sep. 28, 1993, which is a continuation-in-part of application Ser. No. 07/919,198 filed Jul. 24, 1992, now U.S. Pat. No. 5,279,299 which is a continuation-in-part of application Ser. No. 07/656,764 filed Feb. 15, 1991, now U.S. Pat. No. 5,156,151.
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Continuation in Parts (3)
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Number |
Date |
Country |
Parent |
127699 |
Sep 1993 |
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Parent |
919198 |
Jul 1992 |
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Parent |
656764 |
Feb 1991 |
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