Electrotherapeutic apparatus

• US 4,095,601 A
• Filed: 06/03/1976
• Issued: 06/20/1978
• Est. Priority Date: 06/09/1975
• Status: Expired due to Term

• Current Assignee: Deceased, Charles Walter Aufranc, Ida Aufranc
• Original Assignee: Deceased, Charles Walter Aufranc, Ida Aufranc
• Inventors: Aufranc, deceased, Charles Walter, Aufranc, heir, by Ida
• Primary Examiner(s): Howell, Kyle L.
• Assistant Examiner(s): Cohen, Lee S.
• Application Number:
  US05/692,459
• Time in Patent Office: 747 Days
• Field of Search: 128/404, 128/405, 128/406, 128/410, 128/411, 128/419 R, 128/420-423, 128/24.3-24.5, 128/57
• US Class Current: 607/72
• CPC Class Codes: A61H 15/0092 hand-held A61H15/0085 takes precedence
• CPC Class Codes: A61H 2201/10 with further special therapeutic means, e.g. electrotherapy, magneto therapy or radiation therapy, chromo therapy, infrared or ultraviolet therapy
• CPC Class Codes: A61H 2201/1695 Enhanced pressure effect, e.g. substantially sharp projections, needles or pyramids
• CPC Class Codes: A61N 1/322 Electromedical brushes, combs, massage devices

Abstract

An electrotherapeutic apparatus for external application comprising circuitry for generating direct-current voltage pulses having an amplitude between 4 and 22 volts and a frequency amounting to at least approximately 8.5 Hz.

Claims

1. An electrotherapeutic apparatus for external applications comprising circuit means for generating direct-current voltage pulses hving an amplitude between 4 and 22 volts and a frequency of about 8.5 Hz, said circuit means including circuitry for producing a square wave voltage course of said pulses having a pulse duration substantially equal to the time span between two successive pulses, means for applying said pulses to a living body, said pulse applying means comprising an electrode in the form of a roller, said roller having a surface formed of substantially pyramid-shaped electrically conductive parts including tips, the pyramid-shaped parts at the region of said tips having substantially square flattened portions, said flattened portions having an edge length of approximately 0.5 mm, said pyramid-shaped parts being arranged in adjacent rows, the pyramid-shaped parts of said adjacent rows being offset with respect to each other, the spacing between the geometric tips of the pyramid-shaped parts neighboring one another and located in successive rows being 6.955 mm and means connected between said circuit means and said electrode for supplying said voltage pulses to the tips of said pyramid-shaped parts.

2. The apparatus as defined in claim 1, wherein the amplitude is in the order of between 6 and 16 volts.

3. The apparatus as defined in claim 2, wherein the amplitude amounts of 12 volts.

4. The apparatus as defined in claim 1, wherein said circuit means comprises an oscillator, frequency control means for controlling said oscillator, an amplifier having an ouput, said oscillator having an ouput said in circuit with said amplifier, the output of said amplifier supplying said direct-current voltage pulses.