FIELD: medicine, devices for physiotherapy for local heating. SUBSTANCE: electrotherm heating element has an envelope, electric heater located within the envelope and made in the form of an insulated electric current carrying conductor of a plastic material with an electric resistivity of no greater than 0.02 ohm.sq. mm/m, for example of copper. Weight and area of the heater and envelope satisfy the relationships given in the invention description. EFFECT: reduced thickness of heating element.
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Authors
Dates
1994-06-30—Published
1992-02-24—Filed