摘要:
A method of neural stimulation is described for maintaining the responsiveness of electrically excitable cells to repeated electrical stimulation. A stimulating signal (23) is applied to the electrically excitable cells. The stimulating signal is repeatedly applied (26, 29, 32, 35) with a progressively increasing signal strength. A quiescent period (44) may be interleaved between bursts (43, 45) of stimulation. The electrically excitable cells may be retinal cells.
摘要:
A method of neural stimulation is described for maintaining the responsiveness of electrically excitable cells to repeated electrical stimulation. A stimulating signal (23) is applied to the electrically excitable cells. The stimulating signal is repeatedly applied (26, 29, 32, 35) with a progressively increasing signal strength. A quiescent period (44) may be interleaved between bursts (43, 45) of stimulation. The electrically excitable cells may be retinal cells.
摘要:
A method is disclosed for efficient multiplexing of a plurality of electrodes in a nerve stimulator using improved, predetermined, regular, repeatable geometric patterns arranged in a predetermined mosaic to form a desired array. Multiple electrodes within said array are addressed by the nerve stimulator as being a stimulating electrode by an instruction specifying a single identifier, indicating a position within each regular geometric pattern. As such, each electrode within the array, maintaining the specified position within its respective repeatable geometric pattern, becomes a stimulating electrode and is connected to the appropriate electronic circuit for subsequent, potential use in nerve stimulation.
摘要:
A method is disclosed for efficient multiplexing of a plurality of electrodes in a nerve stimulator using improved, predetermined, regular, repeatable geometric patterns arranged in a predetermined mosaic to form a desired array. Multiple electrodes within said array are addressed by the nerve stimulator as being a stimulating electrode by an instruction specifying a single identifier, indicating a position within each regular geometric pattern. As such, each electrode within the array, maintaining the specified position within its respective repeatable geometric pattern, becomes a stimulating electrode and is connected to the appropriate electronic circuit for subsequent, potential use in nerve stimulation.
摘要:
A method is disclosed for the fabrication of feedthrough devices that can transmit a single or plurality of electrical signal(s) to or from within a leak-tight (hermetic) chamber from or to the outside of said leak-tight (hermetic) chamber. The invention allows materials known to be well-tolerated within the human body such as alumina-oxide ceramic and platinum to be used as raw materials in the fabrication of body-compatible, single or multi-channel leak-tight (hermetic) feedthroughs.
摘要:
The present invention relates to a neural prosthesis. In its most general form, the neural prosthesis comprises an electrode array including a stimulating electrode (801) and a bipolar return electrode (802). The neural prosthesis also comprises a monopolar return electrode (806), a first electrical return path (812) associated with the bipolar return electrode (802) and a second electrical return path (814) associated with the monopolar return electrode (806) wherein, in use, the stimulating electrode (801) provides a stimulating current to the tissue of a recipient and a total return current is divided between a first current in the first electrical return path (812) and a second current in the second electrical return path (814).
摘要:
A system for transferring data and power between electronic devices implanted in a patient is described. The system comprises a first unit and a second unit that in use are both implanted in the patient and a cable connecting the first unit and the second unit. The first unit comprises a current supply unit that supplies a selected current output to the second unit via the cable and a processor configured to anticipate an action to be performed by the second unit and to select the current output dependent on the anticipated action.
摘要:
The present invention relates to a neural prosthesis. In its most general form, the neural prosthesis comprises an electrode array including a stimulating electrode (801) and a bipolar return electrode (802). The neural prosthesis also comprises a monopolar return electrode (806), a first electrical return path (812) associated with the bipolar return electrode (802) and a second electrical return path (814) associated with the monopolar return electrode (806) wherein, in use, the stimulating electrode (801) provides a stimulating current to the tissue of a recipient and a total return current is divided between a first current in the first electrical return path (812) and a second current in the second electrical return path (814).
摘要:
A system for transferring data and power between electronic devices implanted in a patient is described. The system comprises a first unit and a second unit that in use are both implanted in the patient and a cable connecting the first unit and the second unit. The first unit comprises a current supply unit that supplies a selected current output to the second unit via the cable and a processor configured to anticipate an action to be performed by the second unit and to select the current output dependent on the anticipated action.