Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1991-05-15
1993-01-26
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604200, 604191, 604226, 604220, 604 87, A61M 3100
Patent
active
051819090
ABSTRACT:
A medical syringe has a plunger bore (1 and 2) that is flexible. A hermetically-sealed glass ampule (3) containing a drug in the form of a liquid referred to generally as a sterile preparation (4) is placed in the plunger bore (1 and 2). When the plunger (1) is pulled outwardly a select distance to expose the flexible plunger bore (2), the glass ampule (3) is broken by hand-squeezing the plunger bore (2) against it. Liquid preparation (4) from the glass ampule (3) is directed through a check-valved orifice (16) at a tip of a resilient piston section (21) of the plunger (1). At the check-valved orifice (16), the preparation (4) enters into a syringe bore (6). There the preparation (4) can be injected through a conventional luer (38-40) and hypodermic needle (37) by the standard practice of depressing the plunger (1) into the syringe (7). Variations are provided for storing ampules of preparation either in or separately from the syringe. Embodiments are described for various adaptations. Use methods are described.
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Cermak Adam J.
Yasko John D.
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