Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1994-02-02
1995-01-10
Hirsch, Paul J.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604283, A61M 532, A61M 2502, A61M 2500
Patent
active
053802934
ABSTRACT:
An intravenous infusion set for administering drugs to a patient, typically in an operating theatre or under intensive care conditions. The infusion set is of the winged needle type and it has been developed with the object of reducing the risk of so-called needlestick injury for medical professionals. The infusion set incorporates a hypodermic needle to which infusant is delivered and the needle is located within a small diameter cannula in the form of a plastics material sleeve which is intended to be inserted into a patient's vein. The needle is slidable axially between two limiting positions within the sleeve such that, when in a first of the positions, a sharp tip end of the needle projects beyond the sleeve and, when in the second position, the sharp tip end of the needle is retracted relative to the sleeve and is located wholly within the sleeve. In use of the infusion set, after the needle has been inserted into a vein the tip end of the needle is retracted into and remains within the sleeve.
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