Surgery – Radioactive substance applied to body for therapy – Combined with other radiant or wave energy source
Patent
1994-03-11
1995-12-19
Sykes, Angela D.
Surgery
Radioactive substance applied to body for therapy
Combined with other radiant or wave energy source
600 13, 600 14, 600 15, A61B 800, A61N 204
Patent
active
054764386
ABSTRACT:
A method for neuromagnetic stimulation or functional neuromuscular stimulation comprises applying a magnetic field with a magnetic induction B to a subcutaneous nerve tissue to be stimulated, and simultaneously directing a focused beam of ultrasonic waves into the magnetic field region such that the ultrasonic waves vibrate orthogonally to the direction of the magnetic field, thereby producing a subcutaneous focus of stimulation having a focal diameter of approximately 1 cm, in order to confine the stimulation into a single nerve bundle or one single nerve region, and to avoid unintentional stimulation of adjoining nerve regions. An apparatus is described for carrying out such method.
REFERENCES:
D. Cohen and N. B. Cuffin, Developing a More Focal Stimulator, Journal of inical Neurophysiology, 1991, pp. 102-120.
S. N. Erne and J. Edrich, Designing Multichannel Sensor Arrays for Biomagnetism, Proc. IEEE-EMS Conference Paris, CH3207, 1992, pp. 1772-1773.
B. A. Evans, Magnetic Stimulation of the Peripheral Nervous System, Journal of Clinical Neurophysiology, 1991, pp. 77-84.
A. T. Barker, An Introduction to the Basic Principles of Magnetic Nerve Stimulation, Journal of Clinical Neurophysiology, 1991, pp. 26-37.
L. A. Frizzell, Threshold Dosages for Damage to Mammalian Liver by High Intensity Focused Ultrasound, IEEE Trans. Biomed. Eng. 24, 1988, pp. 578-581.
J. A. Evans and M. B. Tavakoli, Ultrasonic Attenuation and Velocity in Bone, Phys. Med. Biol. vol. 35, S. 1990, No. 10, pp. 1387-1396.
Umemura and C. A. Cain, Acoustical Evaluation of a Prototype Sector-vortex Phased-array Applicator, IEEE Trans. on Ultrasonics, Ferroeletrics and Frequency Control, vol. 39, 1992, No. 1, pp. 32-38.
Edrich Jochen
Zhang Tongsheng
Huane Stephen
Sykes Angela D.
Zentralinstitut fur Biomedizinische Technik Universitat Ulm
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