Surgery – Respiratory method or device – Ozone or ion generation
Patent
1979-02-15
1980-11-11
Yasko, John D.
Surgery
Respiratory method or device
Ozone or ion generation
128221, A61M 500
Patent
active
042326699
ABSTRACT:
A sheath for protecting and maintaining sterile a syringe needle and for preventing breakage of the needle during use is disclosed. The sheath is mounted on a syringe of the type used for introducing liquid medication into flexible bags for the administration of intravenous solutions, and serves to guide and protect the needle as it is inserted into the flexible inlet tube of such bags and to hold the needle and syringe in alignment during the injection of medication to prevent breakage of the needle. The syringe housing is formed with a boss, or hub, through which the needle extends, and the sheath is secured to this boss by means of an inwardly turned axial mounting collar. An end wall partially closes the protective sheath and abuts the closed end of the syringe housing to provide a relatively large contact area between these two elements to hold them in alignment. The annular collar frictionally engages the syringe body hub to securely hold the protective sheath in place.
The protective sheath preferably is slightly conical, tapering outwardly from its closed end to an open end which is slightly larger in diameter. The open end of the sheath terminates in an outwardly turned annular flange having a flat surface adapted to engage the outer wall of a container to hold the needle and syringe in the proper angular relationship therewith. A suitable cap or cover is provided for the sheath to enclose the syringe needle until it is to be used.
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patent: 3945382 (1976-03-01), Ogle
patent: 4059112 (1977-11-01), Tischlinger
patent: 4078565 (1978-03-01), Genese
Bristol Myers Co.
Yasko John D.
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