Surgery – Respiratory method or device – Ozone or ion generation
Patent
1978-03-08
1980-03-04
Yasko, John D.
Surgery
Respiratory method or device
Ozone or ion generation
128DIG1, A61M 520
Patent
active
041911873
ABSTRACT:
Apparatus for driving a medical syringe plunger into its barrel at a variable controlled rate comprises an elongate support along which the syringe is secured, an electric motor, a transmission assembly drivably coupled with the motor to close the plunger into the barrel, a drive control for pulsing the motor to effect repeated constant incremental movements of the plunger through the transmission assembly, and a safety control operable to inhibit the drive control in response to continuous energization of the motor beyond a predetermined period. The safety control conveniently involves a capacitor charged by the motor pulses, and a latch activated by an "excess" charge on the capacitor relative to a normal situation.
REFERENCES:
patent: 2602446 (1952-07-01), Glass et al.
patent: 3701345 (1972-10-01), Heilman et al.
patent: 3812843 (1974-05-01), Wootten et al.
patent: 3858581 (1975-01-01), Kamen
National Research Development Corporation
Yasko John D.
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