Wireless low-frequency medical treatment device

• US 5,109,845 A
• Filed: 11/14/1990
• Issued: 05/05/1992
• Est. Priority Date: 11/17/1989
• Status: Expired due to Fees

• Current Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Fujiwara, Masakatsu, Yuuchi, Takahiro, Tsuchida, Yasuyuki
• Primary Examiner(s): Pellegrino, Stephen C.
• Assistant Examiner(s): SHUMAKER, STEVEN
• Application Number:
  US07/612,732
• Time in Patent Office: 538 Days
• Field of Search: 128/419 R, 128/421, 128/422, 128/423 R, 128/423 W, 128/424, 600/9, 600/13-15, 343/702, 343/742, 343/788, 343/867
• US Class Current: 607/60
• CPC Class Codes: A61N 1/37211 Means for communicating with stimulators
• CPC Class Codes: A61N 1/37223 Circuits for electromagnetic coupling
• CPC Class Codes: A61N 1/40 Applying electric fields by inductive or capacitive coupling microwave apparatus A61N5/00; Applying radio-frequency signals
• CPC Class Codes: H01Q 7/08 Ferrite rod or like elongated core

Abstract

A wireless low-frequency medical treatment device having a sending section for sending data for low-frequency medical treatment and a pulse applying section for receiving the above data and applying a low-frequency pulse corresponding to the data on a living body, the device being characterized in that the sending section comprises a plurality of sending coils, whose axes cross each other in a space, and a sending coil driving circuit for supplying the sending coils with resonating currents having different phases, respectively, the currents indicating a signal corresponding to the data; and that the pulse applying section comprises a receiving coil for receiving the signal sent from the sending coils through electromagnetic induction.

Claims

1. A wireless low-frequency medical treatment device having a sending section for sending data for low-frequency medical treatment and a pulse applying section for receiving the above data and applying a low-frequency pulse corresponding to the data on a living body, the device comprising:

a sending section comprising a plurality of sending coils, whose axes cross each other in a space, and sending coil driving means for supplying the sending coils with resonating currents having different phases, respectively, the currents indicating a signal corresponding to the data; and

a pulse applying section comprising a receiving coil for receiving the signal sent from the sending coils through electromagnetic induction, means for providing the signal to a microcomputer to control low frequency medical treatment applied to a living body by said pulse applying section, and pulse applying bodies for applying the medical treatment.

2. A device of claim 1, wherein the sending coil driving means comprises series capacitors, each connected to a sending coil serially for supplying the sending coils with a series resonating current, and control means for alternately turning on and off the series resonating currents in respective sending coils in accordance with the data.

3. A device of claim 2, wherein the plurality of sending coils are two sending coils whose axes cross each other with an angle of 90°

and the series resonating currents have a 90°

phase difference from each other.