The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 1996
Filed:
Jul. 12, 1995
Thomas Rauch, Conyers, GA (US);
Arthur A Pilla, Ridgewood, NJ (US);
Se Y Oh, Deerfield Beach, FL (US);
Electropharmacology, Inc., Pompano Beach, FL (US);
Abstract
A system for tissue-impedance matched pulsed radio frequency (PRF) electrotherapy includes a power supply, an excitation board for generating PRF signals of a selectable frequency, the board having an input from the power supply. The system also includes a power amplifier for signals from the excitation board. Included is a subsystem for controlling pulse width duration, pulse burst repetition rate, and amplitude of the PRF signals, the controlling system having an input from the power supply. Further provided is a subsystem for continually comparing the amplitude of the PRF signals outputted from the amplifier to a reference value, this including a feedback circuit responsive to difference information between the compared signals and the reference value, the difference information inputted to the controlling subsystem for adjustment of the amplitude and impedance of the PRF signals from the excitation board, the comparing system including an output of power and impedance compensated PRF signals. The system also includes a variable reactance athermapeutic applicator having, as a coaxial cable input, the power and impedance compensated PRF signals outputted from the comparing subassembly, the applicator including a treatment surface having an effective physiologic impedance in the range of 25 to 75 ohms.