Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1985-09-03
1987-06-30
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604177, 604198, 604162, A61M 500
Patent
active
046767835
ABSTRACT:
An intravenous needle with a sharpened distal end has a proximal end fixed within a first enlarged end of an inner tube. The enlarged end of the inner tube is held tightly within a first end of an outer tube by friction. The needle passes through a constricted opening in the first end of the outer tube. The second end of the inner tube passes through a constricted opening in the second end of the outer tube. The needle is used by gripping soft plastic wings on the outer tube and removing a needle cover from a nipple on the first end of the outer tube. The needle is then inserted in the desired location and the outer tube and a protruding end of the inner tube are taped in place. Fluids are permitted to flow through the inner tube and needle. When use is complete, the needle is removed from the vein, the protruding end of the inner tube is pulled outward, pulling the first end of the inner tube and the needle into the outer tube. The first end of the inner tube tightly wedges within the second end of the outer tube, holding the needle totally within the outer tube. Finally, the retracted used needle assembly is discarded, encased in the outer tube.
REFERENCES:
patent: 3055361 (1962-09-01), Ballard
patent: 3536073 (1970-10-01), Farb
patent: 3572334 (1971-03-01), Petterson
patent: 3670727 (1972-06-01), Reiterman
patent: 3910272 (1975-10-01), Forberg
patent: 4160450 (1979-07-01), Doherty
patent: 4425120 (1984-01-01), Sampson et al.
Guyenet Patrice G.
Jagger Janine C.
Pearson Richard D.
Rosenbaum C. Fred
The University of Virginia Alumni Patents Foundation
Vinyard Sherri E.
Wray James C.
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