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Heart Surgery

Magnetic-nerve-stimulator-for-exciting-peripheral-nerves

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Magnetic nerve stimulator for exciting peripheral nerves

Details

Inventors: Davey, Kent R.; Epstein, Charles M.;
Assignee: Neotonus, Inc. (Marietta, GA); Emory University (Atlanta, GA)
Primary Examiner: Lacyk; John P.
Assistant Examiner:
Attorney, Agent or Firm: Levisohn, Lerner, Berger & Langsam

A magnetic nerve stimulator system is comprised of a core constructed from a material having a high field saturation with a coil winding. A thyrister capacitive discharge circuit pulses the device. A rapidly changing magnetic field is guided by the core, preferably vanadium permendur. For task specific excitation of various nerve groups, specially constructed cores allow for excitation of nerves at deeper levels with higher efficiency than is possible with air-core stimulators. Among the applications possible with this invention are treatment of incontinence, rehabilitation of large muscle groups in the leg and arm, and excitation of abdominal wall muscle groups to aid in weight loss and metabolic rate increase. A C-shape is employed for focussing the stimulation as desired.

DETAILED DESCRIPTION An object of the present invention is to provide a magnetic nerve stimulator for exciting nerves of the peripheral nervous system.
A further object of the present invention is to provide a magnetic nerve stimulator for non-invasive stimulation of nerves within the peripheral nervous system.
A further object of the present invention is to provide a nerve stimulator for the production of magnetic fields of significant depth and focusability to stimulate deep nerves within a human.
A further object of the present invention is to provide a magnetic nerve stimulator which can produce magnetic fields which can be focused on internal peripheral nerves to effect non-invasive nerve stimulation.
A further object of the present invention is to provide a magnetic nerve stimulator for the treatment of bladder and urinary disorders.
A further object of the present invention is to provide magnetic nerve stimulators for the treatment of incontinence.
A further object of the present invention is to provide a magnetic nerve stimulator for muscle rehabilitation and/or conditioning.
A further object of the present invention is to provide a magnetic nerve stimulator for use in assisting with weight loss.
Further objects of the invention will become apparent in connection with the disclosure provided herein.
To accomplish the objectives of the present invention, a magnetic nerve stimulator is provided herein which can be used to stimulate nerves without the need for surgery.
Magnetic stimulation of peripheral nerves has the advantages of convenience and threshold variability over competing FES systems.
An advance of the present invention over competing magnetic nerve stimulators is in the use of a highly saturable magnetic core, i.
e.
a permeable core of high field saturation, and in the design of the magnetic core stimulator itself.
In the preferred embodiment, the magnetic nerve stimulator is preferably constructed using a core of a magnetic or magnetizable material.
A permeable material having a high field saturation is utilized, with the preferred core having a field saturation of at least 1

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