Surgery – Respiratory method or device – Ozone or ion generation
Patent
1973-03-22
1976-08-17
Yasko, John D.
Surgery
Respiratory method or device
Ozone or ion generation
A61M 500
Patent
active
039748324
ABSTRACT:
An interchangeable needle assemblage for a hypodermic syringe which enables needles of varying lengths and characteristics to be readily attached to the barrel of an existing syringe or vial. Where double-ended needles are utilized, the barrel or vial has an opening with a sealing membrane disposed thereacross, adapted to be pierced by the inner end of the needle. Carried on the barrel is a locking type ferrule having a pair of internal locking shoulders located on opposite sides of a slot. A needle hub assembly is receivable in the slot, being rigidly affixed to the needle at a point intermediate the ends thereof, said assembly having finger-engageable ears to facilitate grasping of the hub, and further having shoulders cooperable with the locking shoulders on the ferrule. To install a needle on the syringe or vial, the hub is first inserted into the ferrule so that the hub shoulders by-pass the internal locking shoulders of the ferrule. The hub is then turned to cause engagement between the said cooperable shoulders, thus securing the needle in place. During insertion of the needle and hub into the ferrule, the inner end of the needle pierces the sealing membrane and communicates with the interior of the syringe barrel or vial, thus readying the item for use.
REFERENCES:
patent: 1591761 (1926-07-01), Haines
patent: 1746009 (1930-02-01), Mulford
patent: 2271546 (1942-02-01), Eisele
patent: 2531893 (1950-11-01), Roehr
patent: 3101711 (1963-08-01), Reitknecht
patent: 3123073 (1964-03-01), Barr, Sr. et al.
patent: 3682174 (1972-08-01), Cohen
patent: 3729003 (1973-04-01), Hurschman
Lehmann H. Gibner
Lehmann K. Gibner
Mays E. Donald
VCA Corporation
Yasko John D.
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