초록 ▼

A single electrode, asymmetric electrode cuff (B) is disposed around a nerve trunk (A). A signal generator (C) is connected between a cathode (20) disposed asymmetrically in the electrode cuff and an anode (22) disposed in an electrically conductive relationship within the body tissue. The signal ge

A single electrode, asymmetric electrode cuff (B) is disposed around a nerve trunk (A). A signal generator (C) is connected between a cathode (20) disposed asymmetrically in the electrode cuff and an anode (22) disposed in an electrically conductive relationship within the body tissue. The signal generator applies a stimulus signal (FIG. 3) which generates unidirectionally propagating action potentials on the nerve trunk. The electrode cuff includes a dielectric sleeve (10) in which the cathode is positioned a first distance (L1) from an escape end (14) and a second distance (L2) from an arrest end (16). The first distance is at least 1.7, and preferably about 7, times the second distance. This asymmetry causes a primary or forward stimulus signal current (30) to be correspondingly greater than a secondary or reverse current (32).

대표청구항 ▼

An asymmetric single electrode cuff system comprising: a sleeve of electrically non-conductive, biocompatible material, the sleeve defining an axial passage therethrough from a first end to a second end, which passage is adapted to receive a nerve trunk therethrough, one and only one annular electro

An asymmetric single electrode cuff system comprising: a sleeve of electrically non-conductive, biocompatible material, the sleeve defining an axial passage therethrough from a first end to a second end, which passage is adapted to receive a nerve trunk therethrough, one and only one annular electrode extending radially around an inner surface of the axial sleeve passage, the electrode being disposed closer to the first end than the second end, a remote electrode physically disconnected and displaced from the axial sleeve, and, a signal generator electrically connected with the axial sleeve electrode and the remote electrode for applying an oscillating current thereacross.