Surgery – Truss – Perineal
Patent
1981-08-03
1983-12-13
Howell, Kyle L.
Surgery
Truss
Perineal
A61H 100
Patent
active
044199880
ABSTRACT:
The electronic circuit includes switch means responsive to the pressure within a first chamber of a dynamic pressure wave appliance for generating an enabling signal when a predetermined pressure level in the first chamber has been reached. A transducer is provided to generate a signal representative of the pressure within a second chamber of the appliance. The electronic circuit includes means for generating a signal representing a first predetermined pressure level and a second predetermined pressure level in the second chamber when the enabling signal is generated. A comparator is responsive to the predetermined pressure level signals and the transducer signal for generating control signals to a solenoid. The solenoid is connected to appropriate valves for regulating the pneumatic control circuit. The electronic control circuit will cause a dynamic pressure wave appliance to apply a pressure to a human or animal extremity which begins at the most distant end and travels up the extremity in the nature of a pressure wave.
REFERENCES:
patent: 2781041 (1975-02-01), Weinberg
patent: 3885554 (1975-05-01), Rockwell, Jr.
patent: 3892229 (1975-07-01), Taylor et al.
patent: 3942518 (1976-03-01), Tenteris et al.
patent: 4057046 (1977-11-01), Kawaguchi
patent: 4148313 (1979-04-01), Bird et al.
Fukushima Christine A.
Howell Kyle L.
Jobst Institute Inc.
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