Apparatus for generating positive and negative electric pulses for application to a living body for therapeutic purposes

• US 3,946,745 A
• Filed: 03/18/1974
• Issued: 03/30/1976
• Est. Priority Date: 03/22/1973
• Status: Expired due to Term

• Current Assignee: Biopulse Company Limited
• Original Assignee: Biopulse Company Limited
• Inventors: Hsiang-Lai, Wen, Chan, Gaylord
• Primary Examiner(s): Kamm, William E.
• Application Number:
  US05/452,125
• Time in Patent Office: 743 Days
• Field of Search: 128/2.1 C, 128/2.1 R, 128/172.1, 128/419 C, 128/419 E, 128/419 P, 128/419 D, 128/419 R, 128/421, 128/422, 128/423, 128/303.18, 128/329 A
• US Class Current: 607/74
• CPC Class Codes: A61N 1/32 alternating or intermittent currents applying electric fields by inductive or capacitive coupling A61N1/40; microwave apparatus A61N5/02

Abstract

Apparatus for treating organisms for therapeutic purposes consists in applying thereto by means of electrodes an electrical signal comprising successive pairs of pulses, the pulses of each pair being of opposite polarity. The apparatus has an electrode arrangement for application to the organism and a signal generator for supplying to the electrode arrangement the signal comprising successive pairs of pulses, the pulses of each pair being of opposite polarity. The generator has controls for varying independently of one another the amplitude of the pulses of each polarity, the duration of the pulses of each polarity, the interval between the pulses of each pair, and the interval between successive pairs of pulses.

Claims

1. Apparatus for generating positive and negative electrical pulses for application to a living body for therapeutic purposes comprising pulse generating means for producing at the output terminals thereof a succession of pairs of electrical pulses of opposite polarity and with adjustable repetition rate, pulse separating means for adjusting the time interval between pulses of opposite polarity of each pair of pulses and for supplying positive pulses to a first output terminal and negative pulses to a second output terminal, first pulse forming means connected to the first output terminal for adjusting the amplitude and width of the positive pulses, second pulse forming means connected to the second output terminal for adjusting the amplitude and width of the negative pulses, and output means for combining the pulses from the first and second pulse forming circuit into an output signal of the apparatus.

2. The apparatus of claim 1 wherein said pulse separating means includes means for adjusting the time of occurrence of pulses of opposite polarity with respect to each other independently of any other adjustment.