Surgery – Respiratory method or device – Ozone or ion generation
Patent
1981-03-28
1982-07-20
Yasko, John D.
Surgery
Respiratory method or device
Ozone or ion generation
128260, A61J 700
Patent
active
043400485
ABSTRACT:
A self-driven hypodermic injector that injects an injectable pharmaceutical composition at a constant baseline rate and may be manipulated to supplement the baseline rate with one or more pulses of the composition. The injector consists of a tubular housing with one fixed basal end wall that carries a hollow small gauge needle and one axially moveable end wall; an axially slideable water imbibing assembly mounted transversely in the housing lumen that divides the lumen into a pharmaceutical composition-containing compartment contiguous to the basal end wall and a water-containing compartment. In operation the subassembly imbibes water from the water-containing compartment and expands into the pharmaceutical-containing compartment to displace the pharmaceutical therefrom at the baseline rate. Pulses are effected by depressing the axially moveable end wall which in turn slides the subassembly toward the fixed end wall thereby exerting pressure on the pharmaceutical composition and increasing the injection rate.
REFERENCES:
patent: 3604417 (1971-09-01), Stolzenberg et al.
patent: 3814097 (1974-06-01), Ganderton et al.
patent: 3964482 (1979-06-01), Gerstel et al.
patent: 3987790 (1976-10-01), Eckenhoff et al.
patent: 4159720 (1979-07-01), Burton
ALZA Corporation
Mandell Edward L.
Sabatine Paul L.
Yasko John D.
LandOfFree
Self-driven hypodermic injector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self-driven hypodermic injector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-driven hypodermic injector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-245830