Extraocular muscle sensor and stimulator

Details Extraocular muscle sensor and stimulator Extraocular muscle sensor and stimulator

1994-11-21

1996-03-05

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

A61N 136

Patent

active

054963559

ABSTRACT:
A method and apparatus for reactivating a paralyzed or non-inervated lateral rectus muscle of the eye. The paralyzed lateral rectus muscle is reactivated by providing a stimulation signal of equal magnitude and frequency of neuronal impulses received by the contralateral medial rectus muscle and detected by an electrode installed therein. The stimulation signal is provided to the paralyzed lateral rectus muscle by way of an electrode installed therein. Control circuitry operates such that the stimulation signal will only be provided to the paralyzed lateral rectus muscle when neuronal impulses are being received by the contralateral medial rectus muscle but not the ipsilateral medial rectus muscle alone and not simultaneously with the ipsilateral medial rectus. The control circuitry will also provide a tonic pulse of predetermined frequency and magnitude to the paralyzed lateral rectus muscle when no neuronal impulses are being sent to the contralateral or ipsilateral medial rectus muscles.

REFERENCES:
patent: 5109844 (1992-05-01), de Juan et al.
patent: 5360438 (1994-11-01), Fisher

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