Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1988-03-09
1990-06-12
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604192, 604413, 604 51, A61M 508
Patent
active
049329448
ABSTRACT:
A connector has one end for receiving a standard auxiliary line adaptor hub and an opposite end receivable over an intravenous line port in a male-female interference fit. A needle is provided in the interior of the connector and punctures a sealing membrane provided over the line port. After the needle has been properly positioned in the line port, an external ring is slid axially over the male-female connection to tighten the interference fit.
For a heparin flush, a cylinder has two chambers, one for holding heparin and another for holding saline. The two chambers are separated by a membrane. A rubber stopper is provided at one end of the cylinder and is provided with a screw connector for receiving a plunger. The opposite end is provided with a needle having inner and outer points, the needle being recessed into an end portion of the cylinder.
The outer end of the needle is provided with a sheath which is removed prior to sliding an intravenous line port into the cylinder. Following puncture by the outer point of the needle, the plunger is pushed inwardly to force saline solution from the first chamber through the needle. After expulsion of the contents of the first chamber, the inner point of the needle pierces the membrane separating the first chamber from the second chamber and further inward movement of the plunger expels the contents of the second chamber.
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Guyenet Patrice G.
Jagger Janine C.
Pearson Richard D.
Daley Kathleen
Rosenbaum C. Fred
The University of Virginia Alumni Patents Foundation
Wray James C.
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