Magnetotherapy apparatus

• US 5,344,384 A
• Filed: 12/11/1992
• Issued: 09/06/1994
• Est. Priority Date: 12/11/1992
• Status: Expired due to Term

• Current Assignee: Hartest Limited, Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Electromagnetic Bracing Systems, Inc.
• Inventors: Ostrow, Alvin, Grinshpon, Grigory
• Primary Examiner(s): Cohen, Lee S.
• Assistant Examiner(s): LACYK, JOHN P
• Application Number:
  US07/989,336
• Time in Patent Office: 634 Days
• Field of Search: 600/9-15, 604/20, 607/48-52
• US Class Current: 600/13
• CPC Class Codes: A61N 1/325 for iontophoresis, i.e. transfer of media in ionic state by an electromotoric force into the body electrodes for external use A61N1/0428
• CPC Class Codes: A61N 2/02 using magnetic fields produced by coils, including single turn loops or electromagnets A61N2/12 takes precedence

Abstract

A magnetotherapy apparatus includes an applicator wrap segmented into a grid of hinged panels. The wrap is adapted to be placed around an injured body member to provide a brace or preform for a conventional cast. Each of the panels further includes a magnetic coil for generating an electromagnetic field directionally oriented perpendicular to a target area. The magnetic fields generated in the adjacent panels are of opposite polarity and cumulatively interact for deeper magnetic flux penetration. An electrostimulation component includes stimulator pads which are selectively energized to provide muscle and/or transcutaneous nerve stimulation for pain sedation. Alternatively, the stimulator pads are used for an electrophoretic pharmaceutical delivery system wherein electrically charged porous pads are in fluid communication with a drug medium.

Claims

1. A magnetotherapy apparatus comprising an applicator wrap, having an outer surface and an inner surface having a plurality of panels hingedly linked and adapted to surround and brace an injured body member adjacent said inner surface, a magnetic coil positioned within each of said panels for simultaneously generating an electromagnetic field in each of said panels, said magnetic coil including a core having a plurality of windings, said windings of each coil being conductively coupled to the windings of alternate successive coils to form at least two respective circuits, whereby current flow through the windings in one circuit is in a first direction and current flow through the windings in another circuit is in a second direction to provide magnetic fields of opposite polarity in the coils of the respective circuits when energized, wherein a longitudinal axis of the magnetic coil is substantially normal to a transverse axis of the wrap whereby magnetic flux is directionally generated perpendicularly with respect to a target area, further including a transverse substrate of metalized electromagnetic radiation shielding material adjacent to said outer surface of said applicator wrap said applicator wrap being adapted for placement contiguous to the injured body member for providing magnetic flux penetration within the selected target area.

2. A magnetotherapy apparatus as claimed in claim 1 further including an electrostimulation component having at least two stimulator pads, said stimulator pads being adapted for placement on the surface of a patient'"'"'s skin, further including a low frequency pulsed d.c. current means said pads further being selectively energized by said low frequency pulsed d.c. current means for providing muscle stimulation.

3. A magnetotherapy apparatus as claimed in claim 2 wherein the operating frequency for the electrostimulation component is between 20-90 hertz.

4. A magnetotherapy apparatus as claimed in claim 1 further including an electrophoretic pharmaceutical delivery system having at least two applicator pads adapted for placement on the surface of a patient'"'"'s skin, a network of tubing connected to said pads for delivering a selected pharmaceutical medium to the applicator pads, said applicator pads being selectively energized by a pulsed d.c. current means for drug treatment therapy.

5. A magnetotherapy apparatus as claimed in claim 1 further including a portable power source, said power source including a pulse signal generator, said pulse signal generator being in conductive communication with the magnetic coils to provide a pulsed signal having a frequency between 10-100 hertz for electromagnetic field therapy.

6. A magnetotherapy apparatus as claimed in claim 4 wherein the pulsed signal for the electrophoretic delivery system has a frequency of between 20-90 hertz.

7. A magnetotherapy apparatus as claimed in claim 1 wherein the applicator wrap is formed of molded thermoplastic material.

8. A magnetotherapy apparatus for use in combination with a bracing means for mobilizing an injured body member, said apparatus comprises a flexible wrap adapted for placement adjacent to a target treatment area, plural coil means positioned within the wrap for generating alternate successive magnetic fields of opposite polarity, said magnetic fields being adapted for penetrating the target area, said wrap including stimulator pad means, said pad means being selectively energized for providing muscular electrostimulation, further including a fluid reservoir said pad means further being in communication, with said fluid reservoir for selectively providing ionization of the fluid medium for delivery to the target area.

9. A multifunctional magnetotherapy apparatus for use in treating an injured body member, said apparatus comprising a flexible applicator wrap adapted for placement contiguous to the injured body member and below an overlying cast, said wrap incorporating a plurality of magnetic coils adapted for generating magnetic fields of opposite polarity when energized, said magnetic fields providing magnetic flux penetration perpendicularly directed with respect to the injured body member, said apparatus further including at least two stimulator pads positioned between said applicator wrap and a surface of the body member, said stimulator pads being spaced apart and, said pads further being selectively energized with opposite electrical charges for providing electrostimulation to the injured body member, further including a fluid reservoir in communication with stimulator pads, said reservoir supplying a drug medium to the stimulator pads, said pads being electrically charged for ionization of the drug medium for delivery to the injured body member.