Method and apparatus for inducing and localizing epileptiform ac

Details Method and apparatus for inducing and localizing epileptiform ac Method and apparatus for inducing and localizing epileptiform ac

1994-03-29

1998-04-28

Cohen, Lee S.

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

600544, A61B 50484, A61B 505

Patent

active

057438544

ABSTRACT:
A method and apparatus for evoking epileptiform activity in patients with drug resistant epilepsy, as part of a presurgical evaluation procedure are disclosed. The apparatus includes a cranial helmet, for generating a DC magnetic field of a sufficient strength to evoke epileptiform activity, and means for localizing the regions of the patient's brain where said epileptiform activity has been evoked. In the preferred embodiment, the magnetic field strength varies between 1 milliTesla and 2 milliTesla, and is generated by two generally similar coils which are coaxially separated, and which are wound on corresponding thermoplastic members to form the helmet. The desired magnetic field strength is produced at about the middle of the distance between the two coils, in general registration with the hippocampus region of the brain. In an exemplary embodiment, the localizing means includes implantable Foramen Ovale electrodes for sensing the evoked and natural epileptic firings. An EEG machine is connected to the Foramen Ovale electrodes, for recording the sensed evoked and natural epileptic firings.

REFERENCES:
patent: 3850161 (1974-11-01), Liss
patent: 4556051 (1985-12-01), Maurer
patent: 5092835 (1992-03-01), Schurig et al.
patent: 5269746 (1993-12-01), Jacobson
patent: 5323777 (1994-06-01), Ahonen et al.
patent: 5357958 (1994-10-01), Kaufman
Dobson et al, "Evocation of epileptiform activity . . . ", Proceedings of the 9th Inst. Conf. on Biomag., Vienne, Austria 1993.
Dobson et al, "Evocation of epileptiform activity . . . ", EOS, vol. 74, No. 16, Baltimore, MD 1993.

Affiliated with

Also associated with

Rating

Method and apparatus for inducing and localizing epileptiform ac does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for inducing and localizing epileptiform ac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for inducing and localizing epileptiform ac will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1527819