Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1992-03-09
1993-09-07
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604905, 604283, A61M 500
Patent
active
052424235
ABSTRACT:
A needleless syringe comprising a barrel, a plunger and a truncated cannula secured to said barrel by an externally stepped hub connector comprising (1) a tubular skirt section of greatest circumference secured to the constricted distal end of said barrel through which said fluid transfer tube extends; (2) a tubular male tapered section of smaller circumference situated beyond the constricted distal end of said barrel and through which said fluid transfer tube extends; and (3) a tubular forward extension of smallest circumference into which said fluid transfer tube projects to a point near the discharge aperture of said forward extension, said forward extension having an annular projection about its circumference set forward of said tapered section a distance sufficient to create a seal between said tapered section and a female Luer slip fitting of a valve actuated intravenous port device when said annular projection opens said valve, said annular projection having a circumference smaller than the smallest circumference of said tapered section. The discharge aperture of said forward extension is blunt and of sufficient diameter to minimize any chance of puncturing the user's or patient's skin.
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patent: 5137527 (1992-08-01), Miller et al.
Goodsir Stephen W.
McCormick Paul Y.
Steiner Dale C.
American Home Products Corporation
Jackson Richard K.
Smith Chalin
Yasko John D.
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