Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1989-04-03
1990-05-01
Hindenburg, Max
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604263, 128919, A61M 532
Patent
active
049214918
ABSTRACT:
A disposable needle system employing chemical disinfecting mechanism is disclosed. Both ends 13,14 of the needle are enclosed in individual spring biased, retractable sleeves 32,52 telescopically received within respective colinear tubular housings that support the needle structure. In use, sleeves 32,52 are retracted to expose needle ends 13,14 for respective insertion into the vein of a patient and for collecting the blood in a tube 71 or syringe 90. After use, the sleeves are returned to original position to again cover the needle ends and protect the user and any subsequent handler from exposure to accidental needle punctures. An additional precaution involves a disinfectant solution being dispersed into the tubular housings via passageway 66 and vial 75. Vial 75 is retained in the tubular housing by the tapered enlarged nozzle 79 being locked in passageway 66 to give a visual indication that the needle system has been used to thereby prevent inadvertent reuse.
REFERENCES:
patent: 2847995 (1958-08-01), Adams
patent: 3354881 (1967-11-01), Bloch
patent: 3485239 (1969-12-01), Vanderbeck
patent: 4416663 (1983-11-01), Hall
patent: 4693708 (1987-09-01), Wanderer
patent: 4695274 (1987-09-01), Fox
patent: 4702738 (1987-10-01), Spencer
patent: 4725267 (1988-02-01), Vaillancourt
patent: 4740205 (1988-04-01), Seltzer
patent: 4747829 (1988-05-01), Jacob
Hindenburg Max
Nelson Wallace J.
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