PEMF stimulator for treating osteoporosis and stimulating tissue growth

• US 6,839,595 B2
• Filed: 04/29/2002
• Issued: 01/04/2005
• Est. Priority Date: 08/03/1998
• Status: Expired due to Term

• Current Assignee: AMER Technology Limited (AMER International Group Company Limited)
• Original Assignee: AMER Technology Limited (AMER International Group Company Limited)
• Inventors: Kuo, Peter, McDermott, Kathy L., Tepper, John C.
• Primary Examiner(s): EVANISKO, GEORGE ROBERT
• Application Number:
  US10/135,662
• Publication Number:
  US 20020165583A1
• Time in Patent Office: 981 Days
• Field of Search: 600/9, 600 13- 15, 607 1- 3, 607/50, 607/51, 607/115, 607/38, 607/148, 607/152, 607154-156
• US Class Current: 607/51
• CPC Class Codes: A61N 2/02 using magnetic fields produced by coils, including single turn loops or electromagnets A61N2/12 takes precedence

Abstract

A method for providing electromagnetic therapy to a patient includes placing the patient in proximity to an electromagnetic therapy apparatus. The electromagnetic therapy apparatus includes an electrical circuit for generating an electrical drive signal, a first transducer coil and a second transducer coil for generating respective electromagnetic fields in response to the drive signal, a first portion with a configuration corresponding generally with a chair seat, and a second portion with a configuration corresponding generally with a chair back. The first transducer coil is disposed within the first portion and the second transducer coil is disposed within the second portion. The method further includes stimulating the patient with a pulsed electromagnetic field from at least the first and second transducer coils. The pulsed electromagnetic field having a number of pulses, each pulse having a pulse period of ten microseconds to twenty microseconds.

Claims

1. A method for providing electromagnetic therapy to a patient for osteoporosis or stimulating tissue growth comprising:

placing the patient in proximity to an electromagnetic therapy apparatus that comprises;

an electrical circuit for generating an electrical drive signal;

a first transducer coil and a second transducer coil for generating respective pulsed electromagnetic fields in response to the drive signal, the pulsed electromagnetic field generated by each transducer coil having a plurality of pulses, each pulse having a pulse period of approximately ten microseconds (10 μ

sec) to approximately twenty microseconds (20 μ

sec); and

a first portion with a configuration corresponding generally with a chair seat and a second portion with a configuration corresponding generally with a chair back, the first transducer coil disposed within the first portion and the second transducer coil disposed within the second portion;

stimulating a first portion of the patient with at least the pulsed electromagnetic field from the first transducer coil, the first portion of the patient located proximate to the portion of the therapy apparatus having a configuration corresponding generally with a chair seat; and

stimulating a second portion of the patient with at least the pulsed electromagnetic field from the second transducer coil, the second portion of the patient located proximate to the portion of the therapy apparatus having a configuration corresponding generally with a chair back.

2. The method of claim 1 wherein:

the electromagnetic therapy apparatus further comprises;

an extremity pad having a portion with a configuration which is conformable generally to a patient'"'"'s upper extremity; and

at least one third transducer coil disposed within the extremity pad for generating a pulsed electromagnetic field in response to the drive signal; and

the method further comprises stimulating the patient'"'"'s upper extremity with at least the pulsed electromagnetic field from the third transducer coil.

3. The method of claim 1 wherein:

the electromagnetic therapy apparatus further comprises;

an extremity pad having a portion with a configuration which is conformable generally to a patient'"'"'s lower extremity; and

at least one third transducer coil disposed within the extremity pad for generating a pulsed electromagnetic field in response to the drive signal; and

a flexible cable adapted to connect the electric drive signal with the third transducer coil; and

the method further comprises stimulating the patient'"'"'s lower extremity with at least the pulsed electromagnetic field from the third transducer coil.

4. The method of claim 1 wherein:

the electromagnetic therapy apparatus further comprises;

a lower extremity pad having a portion with a configuration which is conformable generally to a patient'"'"'s lower extremity;

at least one third transducer coil disposed within the lower extremity pad for generating a pulsed electromagnetic field in response to the drive signal;

an upper extremity pad having a portion with a configuration which is conformable generally to a patient'"'"'s upper extremity;

at least one fourth transducer coil disposed within the upper extremity pad for generating a pulsed electromagnetic field in response to the drive signal; and

a first flexible cable adapted to connect the electrical drive signal with the third transducer coil and a second flexible cable adapted to connect the electrical drive signal with the fourth transducer coil; and

the method further comprises stimulating the patient'"'"'s lower and upper extremities with at least the pulsed electromagnetic fields from the third and fourth transducer coils, respectively.

5. The method of claim 1, wherein the plurality of pulses are generated in bursts, each burst comprising approximately one thousand six hundred nine (1609) pulses.

6. The method of claim 1 wherein:

the first portion comprises a first pad and the second portion comprises a second pad; and

the first transducer coil is disposed within the first pad and the second transducer coil is disposed within the second pad; and

wherein placing the patient in proximity to the therapy apparatus further comprises placing the patient in proximity to the first and second pads.

7. The method of claim 6 wherein the second pad further comprises a layer of material which is conformable in response to pressure from the general shape of the patient'"'"'s back and will retain the general shape when the pressure is released;

and

wherein placing the patient in proximity to the therapy apparatus further comprises conforming the second pad to the general shape of the patient'"'"'s back.