Device with flexible multilayer system for contacting or electrostimulation of living tissue cells or nerves
First Claim
1. A device for contacting and/or electrostimulation of living tissue cells or nerves, the device comprising:
- a flexible circuit board including at least one contact point, the flexible circuit board including the following layers;
at least one electrically insulating material layer and at least one conductor-track layer having a conductor track, the at least one electrically insulating material layer formed over the at least one conductor-track layer; and
at least one additional insulating material layer, the at least one additional insulating material layer formed over the at least one electrically insulating material layer and arranged on a portion of the contact point, the at least one additional insulating material layer configured to reinforce the contact point in the circuit board, wherein the conductor track is electrically contactable from outside of the circuit board through the additional insulating material layer via the contact point,wherein the at least one contact point includes;
a first part that is in direct contact with one of the at least one conductor-track layer, anda second part that is in contact with the at least one additional insulating material layer, wherein the first and second parts of the at least one contact point extend parallel to each other, wherein the first part has larger lateral dimensions than the second part, and wherein the second part is provided in the form of a contact pad.
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Accused Products
Abstract
The object,—to create a printed circuit board for an implant having improved properties in connection with the electrical contacting via the contact points of the conductor tracks on the printed circuit board,—is achieved, according to the present invention, by means of a device for contacting and/or electrostimulation of living tissue cells or nerves with having a printed circuit board having with at least one contact point for electrical contacting, the printed circuit board encompassing comprising a flexible multilayer system with at least one conductor track. In accordance with the invention, the contact points for the conductor track in the multilayer system are galvanically reinforced. To this end, a galvanically reinforced layer is grown onto the already preprocessed contact point, for example by means of a galvanic process. By virtue of the application of one or more additional material layers onto the contact points of the conductor tracks, these latter are mechanically more stably anchored in the printed circuit board in mechanically more stable manner and hence become more reliable in their function.
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Citations
21 Claims
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1. A device for contacting and/or electrostimulation of living tissue cells or nerves, the device comprising:
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a flexible circuit board including at least one contact point, the flexible circuit board including the following layers; at least one electrically insulating material layer and at least one conductor-track layer having a conductor track, the at least one electrically insulating material layer formed over the at least one conductor-track layer; and at least one additional insulating material layer, the at least one additional insulating material layer formed over the at least one electrically insulating material layer and arranged on a portion of the contact point, the at least one additional insulating material layer configured to reinforce the contact point in the circuit board, wherein the conductor track is electrically contactable from outside of the circuit board through the additional insulating material layer via the contact point, wherein the at least one contact point includes; a first part that is in direct contact with one of the at least one conductor-track layer, and a second part that is in contact with the at least one additional insulating material layer, wherein the first and second parts of the at least one contact point extend parallel to each other, wherein the first part has larger lateral dimensions than the second part, and wherein the second part is provided in the form of a contact pad. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A device for contacting and/or electrostimulation of living tissue cells or nerves, the device comprising:
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a flexible circuit board including at least one contact point that includes a first part and a second part, the flexible circuit board including the following layers; at least one electrically insulating material layer and at least one conductor-track layer having a conductor track, the at least one electrically insulating material layer formed over the at least one conductor-track layer; and at least one additional insulating material layer formed over the at least one electrically insulating material layer and the first part, the at least one additional insulating material layer configured to reinforce the contact point in the circuit board, wherein the conductor track is electrically contactable from outside of the circuit board through the additional insulating material layer via the contact point, wherein; the first part is in direct contact with one of the at least one conductor-track layer, wherein the first part of the contact point is at least partially overlapped by the additional material layer, and the second part is in contact with the at least one additional insulating material layer, wherein the first and second parts of the at least one contact point extend parallel to each other, wherein the first part has larger lateral dimensions than the second part and the second part is provided in the form of a contact pad, wherein the second part of the contact point is at least partially surrounded by the additional material layer.
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Specification