Abstract: An implantable assembly is described for acquisition of neuronal electrical signals at a selected location which propagate along at least one nerve fiber contained in a nerve fiber bundle, as well as for selective electrical stimulation of the at least one nerve fiber, having: an implantable electrode assembly (E) which is disposed on a biocompatible support substrate which can be positioned around the nerve fiber bundle in a cuff, which has a cylindrical support substrate surface (i) which in the implanted condition is orientated facing the nerve fiber bundle, on which a first electrode assembly for locationally selective acquisition of the neuronal electrical signals and selective electrical stimulation of the at least one nerve fiber, and on which a second electrode assembly is disposed to record an ECG signal, and an analysis and control unit (A/S) which can be electrically conductively connected or is connected to the implantable electrode assembly (E), in which the locationally selective acquired neuron

Abstract: A miniaturized microsystem device including at least one of electrical, optical and mechanical components in a hermetically or non-hermetically sealed housing with respect to air humidity or encapsulated, which contains a desiccant. The humidity-dependent lifetime of the arrangement is determined by measuring the absorptivity of the desiccant.

Abstract: A biocompatible recording system includes a number of input channels for acquiring electronic information from the neural system of a living being. The recording system includes a preamplifier and further amplifier stages. An input of a second amplifier stage is coupled to an output of the preamplifier. A low-pass filter having a capacitance multiplier is connected to the second amplifier stage. The preamplifier of the recording system is designed using P-MOS technology.

Abstract: An implantable cuff electrode having a flexible cuff in form of a tube having a longitudinal slot, wherein the longitudinal slot defines a first edge and a second edge on the cuff, wherein a first lip is arranged at the first edge of the longitudinal slot, and a second lip is arranged at the second edge of the longitudinal slot, and wherein the longitudinal slot can be sealed by the first lip and the second lip in that the first lip and the second lip extend at least partially on the cuff jacket of the cuff one lying on top of the other, and the second lip holds the first lip in position by means of a surface pressure onto the cuff jacket.

Abstract: The invention is an implantable electrode configuration having a carrier substrate of a biocompatible polymer in at least some areas and a freely accessible electrode surface applied to the carrier substrate or integrated into the carrier substrate on the carrier substrate surface in at least some areas is described and a method for producing the implantable electrode configuration. The electrode has a metallic base plate having a planar top side and bottom side, including at least one structural element protruding orthogonally from the top side. The planar surface of the metallic base plate is oriented parallel to the carrier substrate surface and the metallic base plate is enclosed by the biocompatible polymer, except for a first surface area of the at least one structural element which faces the carrier substrate surface and is the freely accessible electrode surface.

Abstract: An implantable electrode arrangement provides spatially-selective detection of neuronal electrical signals, which propagate along at least one nerve fiber contained in a nerve fascicle, and for selective electrical stimulation of the at least one nerve fiber, comprising a biocompatible carrier substrate, which has at least one carrier substrate region that can be placed around the nerve fascicle in a cuff and has a straight cylinder-shaped carrier substrate surface which faces the nerve fascicle in the implanted state. The carrier substrate surface has an axial extension and an extension oriented circumferentially in a direction and a first electrode arrangement attached thereto.

Abstract: An implantable assembly is described for acquisition of neuronal electrical signals at a selected location which propagate along at least one nerve fiber contained in a nerve fiber bundle, as well as for selective electrical stimulation of the at least one nerve fiber, having: an implantable electrode assembly (E) which is disposed on a biocompatible support substrate which can be positioned around the nerve fiber bundle in a cuff, which has a cylindrical support substrate surface (i) which in the implanted condition is orientated facing the nerve fiber bundle, on which a first electrode assembly for locationally selective acquisition of the neuronal electrical signals and selective electrical stimulation of the at least one nerve fiber, and on which a second electrode assembly is disposed to record an ECG signal, and an analysis and control unit (A/S) which can be electrically conductively connected or is connected to the implantable electrode assembly (E), in which the locationally selective acquired neuron

Abstract: The present invention relates to a sieve electrode for connection to a nerve stump, which is composed of a thin flexible substrate (1) with a plurality of ports (2) for nerve filaments and several electrodes (3) that are disposed on at least some of said ports (2) on said substrate (1) and adapted for being electrically contacted via conductors (5) on said substrate (1), as well as of at least one counter-electrode (4). The substrate (1) presents tabs (6) protruding from the edge for fixing the substrate (1) on a face of the nerve stump, which serve, at the same time, as carrier of the counter electrode (4). With this sieve electrode a neuro-technological interface is provided that permits a low-lesion contact with the nerve stump at a maximum of useable surface for the ports.

Abstract: The present invention relates to a sieve electrode for connection to a nerve stump, which is composed of a thin flexible substrate (1) with a plurality of ports (2) for nerve filaments and several electrodes (3) that are disposed on at least some of said ports (2) on said substrate (1) and adapted for being electrically contacted via conductors (5) on said substrate (1), as well as of at least one counter-electrode (4). The substrate (1) presents tabs (6) protruding from the edge for fixing the substrate (1) on a face of the nerve stump, which serve, at the same time, as carrier of the counter electrode (4).

Abstract: The present invention relates to a cuff-electrode that can be placed as an extraneural, sleeve-shaped electrode about a biological tissue, e.g. a nerve.

Abstract: A flexible and non-conductive, artificial, implantable nerve plate has an module of about 3000-1000 N/mm.sup.2 and a thickness of <50 .mu.m for placement and insertion between the fascicles of a nerve bundle. Multiple electrodes are arranged on the two sides of the nerve plate, which is connected via conducting lines inside the nerve plate to a cable integrated with the nerve plate; and the cable is connectable to a control and signal receiver unit.