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US 5,758,651 AGranted
Telemetry system and apparatus
OwnerTony Mikeal Nygard, Chris Newton Daly +2inventors
InventorsTony Mikeal Nygard, Chris Newton Daly, Jim Finlay Patrick, David Kerry Money
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Abstract
A system is disclosed for enabling telemetry from an auditory prosthesis, illustratively a cochlear prosthesis. An electrode array 10 is used both for delivering electrical stimuli, and for sensing evoked potentials. Preferably a delay is provided between stimulus and measurement, and the sensing electrodes are distinct from the stimulus electrodes.
Claims11
A cochlear implant for implantation into a patient for stimulating the patient's aural nerve, comprising:
- a receiver receiving control signals including ambient signals indicative of ambient noise;
- a plurality of electrodes, at least some of which are adapted to extend into the cochlea of the patient;
- a controller for applying stimulation signals corresponding to said control signals to said electrodes;
- a sensor coupled to said electrodes for sensing a sensed signal indicative of a response of said aural nerve to said stimulation signals a predetermined time after said stimulation signals are applied, said sensed signals being indicative of a parameter of response of the patient's neural system;
- and
- a measuring device for measuring said response;
- wherein said controller open circuits said electrodes after said stimulation signals are applied.
4 more elements
A cochlear prothesis for stimulating a neural system, said prosthesis comprising:
- a source for a stimulus;
- a plurality of electrodes coupled to said source, at least some of said electrodes being arranged to deliver said stimulus to said neural system, said plurality of electrodes including a pair of sense electrodes;
- a controller for applying said stimulus to said plurality of electrodes and for open circuiting said plurality of electrodes for a predetermined period after said stimulus is applied;
- and
- a sensor for detecting a response on said pair of sense electrodes, said response being indicative of a reaction of said neural system to said stimulus.
2 more elements
Dependencies are inferred from the claim text.