Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1991-09-09
1993-06-29
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604200, 604240, 604246, 604905, 137855, A61M 5178
Patent
active
052229483
ABSTRACT:
An improved injection port (1) for a single-use syringe is described. One embodiment of the injection port has a one-way valve system for making it more difficult to reuse the syringe (2). The one-way valve system has a flap or diaphragm valve (6) housed in a valve chamber (11) at the proximal end of port cylinder (45). When the valve (6) is seated against valve seat (51) on valve cap (5), refilling of the syringe is blocked. During injection, the valve (6) unseats and moves toward radial ribs (7), allowing flow of medicament into the proximal end of a needle (2). Another embodiment of the injection port (1) includes longitudinal grooves (8) on the interior surface of the chamber (12) at the distal end of cylinder (45). The grooves (8) vent pressure from a Luer syringe inserted in the distal end of the cylinder (45).
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Austin Glenn
Nelson Carib
Thomas Ronny D.
Path
Polutta Mark O.
Yasko John D.
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