Protective assembly

Details Protective assembly Protective assembly

2005-12-06

2005-12-06

Dahbour, Fadi H. (Department: 3743)

Surgery

Body protecting or restraining devices for patients or infants

C607S096000, C607S115000, C607S116000, C607S009000, C606S027000, C606S032000, C601S003000, C600S410000

Reexamination Certificate

active

06971391

ABSTRACT:
An assembly for protecting biological tissue from the effects of heating. The assembly contains a conductor in contact with the biological tissue and forming an electrical circuit comprising the biological tissue. The assembly contains a device for modifying the impedance of the electrical circuit such that, at a frequency of from about 10 megahertz to about 150 megahertz, such impedance is at least about 0.5 ohms per centimeter of length of said conductor. The assembly also contains a device for limiting the flow of current through the biological tissue such that, when the assembly is exposed to an alternating current electromagnetic field at a frequency of 64 megahertz and a magnetic field strength of 1.5 Tesla for 15 minutes, the temperature of the biological tissue does not exceed 42 degrees Celsius.

REFERENCES:
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patent: 5433732 (1995-07-01), Hirschberg et al.
patent: 5591218 (1997-01-01), Jacobson
patent: 5833710 (1998-11-01), Jacobson
patent: 5968083 (1999-10-01), Ciciarelli et al.
patent: 6161040 (2000-12-01), Blunsden

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