Surgery – Respiratory method or device – Ozone or ion generation
Patent
1977-08-10
1979-12-18
Truluck, Dalton L.
Surgery
Respiratory method or device
Ozone or ion generation
128218F, A61M 520
Patent
active
041789288
ABSTRACT:
A self injector having a spring powered gun assembly including a plunger rod driven forwardly by a compressed spring which is releasable by a retainer member to fire the plunger rod, and a cartridge assembly connected to said gun assembly, the cartridge assembly comprising a cylindrical shield connected to the gun assembly, a cartridge slidably positioned within the shield and including a cartridge tube with a slidable plunger closing off one end and a flexible diaphragm closing off the other to form a medicament chamber therebetween. A nose piece is affixed to the diaphragm end of the cartridge tube and mounts a cannula on its outside portion in fluid communication with the area on the cannula side of the diaphragm. The plunger rod is aligned with the cartridge plunger whereby when the gun is fired the plunger rod will push the plunger forwardly in the cartridge tube to cause the flexible diaphragm to contact and be pierced by a spike in the cartridge tube thereby establishing fluid communication between the medicament chamber and the cannula for injection purposes.
REFERENCES:
patent: 2735429 (1956-02-01), Huber
patent: 3308821 (1967-03-01), Shields
patent: 3396726 (1968-08-01), Sarnoff
patent: 3742948 (1973-07-01), Post et al.
patent: 4031893 (1977-06-01), Kaplan et al.
patent: 4072149 (1978-02-01), Tischlinger
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