USOO53O0O96A
United States Patent [19] [li] Patent Number: 5,300,096
Hall et al. [45] Date of Patent: Apr. 5,1994
[54] ELECTROMYOGRAPHIC TREATMENT DEVICE
[76] Inventors: H. Eugene Hall, 10029 NE. 27th St., Bellevue, Wash. 98004; William A. Munday, 6503 57th Ave. NE., Seattle, Wash. 98115; R. Wayne Fields, 6490 Chessington La., Gladstone, Oreg. 97027; James E. Tillman, 1462 38th Ave., Seattle, Wash. 98122
[21] Appl. No.: 892,942
[22] Filed: Jun. 3,1992
[51] Int. CI.5 A61N 1/18
[52] U.S. CI 607/48
[58] Field of Search 128/421, 419 R, 422,
128/423 R, 423 W, 733, 901, 905
[56] References Cited
U.S. PATENT DOCUMENTS
2,465,838 3/1949 Bernard 128/421
4,392,496 7/1983 Stanton 128/423 W
4,582,049 4/1986 Ylvisaker 128/423 W X
'4,690,146 9/1987 Alon 128/422
4,811,742 3/1989 Hassel et al 128/733
4,813,418 3/1989 Harris 128/421
4,832,033 5/1989 Mather et al 128/421
4,844,075 7/1989 Liss et al 128/419 R
4,848,347 7/1989 Hall 128/420 A
4,863,157 9/1989 Mendel et al 272/73
4,875,484 10/1989 Anzai et al 128/421
4.919.139 4/1990 Brodard 128/421
4.919.140 4/1990 Borgens et al 128/422
4,919,148 4/1990 Muccio 128/798
5,016,635 5/1991 Graupe 128/421
5,070,873 12/1991 Graupe et al 128/423 W
FOREIGN PATENT DOCUMENTS
972199 9/1949 Fed. Rep. of Germany 128/422
Primary Examiner—Lee S. Cohen
Assistant Examiner—Jeffrey R. Jastrazab
Attorney, Agent, or Firm—Michael J. Folise
[57] ABSTRACT
An electrical muscle stimulator converts electromyographic (EMG) signals to digital words for analysis and display by a computer program. The therapist selects a variety of different parameters appropriate for the individual patient, and instructs the device to initiate stimulating signals on command, or upon detection of a suitable EMG signal from the patient. The device that converts digital words representing the selected parameters into complex, bipolar therapeutic pulses. The device can digitally model a wide variety of wave forms and graphically assist the therapist in developing and shaping various wave pulse trains.
16 Claims, 12 Drawing Sheets
