Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1992-03-12
1993-07-27
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604256, A61M 3700
Patent
active
052307069
ABSTRACT:
A bi-directional valve assembly disposed within an infusion system to permit the administration of an infusion solution without the use of a needle, the bi-directional valve assembly is a two-way spring valve which comprises: a spring means, a valve port, and a valve plunger having a sealing means and a conduit means disposed thereabout, wherein the spring means is connected to the valve plunger in such a way as to permit the opening of the conduit means when the spring means is recoiled such that the sealing means is not in contact with the valve port and to permit the closing of the conduit means when the spring means is expanded such that the sealing means is in contact with the valve port; whereby the bi-directional valve assembly is capable of opening and closing the infusion system.
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"Despite Safety Guidelines, Various Devices Still Cause Needle-Stick Injuries", Oncology Nurse Bulletin, vol. 10, Oct. 1988, pp. 2-8.
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