Diathermy apparatus with automatic tuning for applicator head

Details Diathermy apparatus with automatic tuning for applicator head Diathermy apparatus with automatic tuning for applicator head

1997-03-26

1999-12-14

Nasser, Robert L.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Thermal applicators

607156, A61B 0500

Patent

active

060029676

ABSTRACT:
A diathermy apparatus has a power circuit operative at a selected, fixed frequency. An applicator head, for providing therapeutic treatment, has an irradiating portion. A transmission line connects the power circuit and applicator head, and is of a length so that, at the frequency, a selected minimum power is delivered to the applicator head when unloaded, the length further being such that a selected maximum amount of power is delivered to the applicator head when it is in a loaded position in close proximity to a patient load. The diathermy apparatus also includes a cabinet and portable base, wherein the portable base mounts the applicator head, and provides a carriage for the cabinet. The applicator head has an internal fan for cooling components of the applicator head. A display is provided for displaying the actual power consumed by the patient load. A processor independently controls the pulse modulator and power circuit in digital increments on a selected scale.

REFERENCES:
patent: 3800802 (1974-04-01), Berry et al.
patent: 4068292 (1978-01-01), Berry et al.
patent: 4210152 (1980-07-01), Berry
patent: 4281362 (1981-07-01), Berry
patent: 4510937 (1985-04-01), Rogers
patent: 5683382 (1997-11-01), Lenihan et al.
patent: 5693082 (1997-12-01), Warner et al.
patent: 5776176 (1998-07-01), Rudie

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