Safety blood collection tube holder and assembly therefor

Details Safety blood collection tube holder and assembly therefor Safety blood collection tube holder and assembly therefor

1994-04-12

1996-01-23

Hindenburg, Max

Surgery

Truss

Pad

A61B 500

Patent

active

054858542

ABSTRACT:
A blood collection assembly is disclosed in which the tube holder to which the contaminated end of a blood collection cannula is inserted. To prevent any contaminated blood from being exposed to the user, or bystanders, an elastic pierceable sheath is fixedly aligned within the tube holder so that the tip and at least a portion of the cannula, when fully inserted to the tube holder, are enveloped within the sheath. Any blood dripped from the cannula is therefore retained within the sheath. To obtain samples of blood for testing, a VACUTAINER tube is inserted to the opposite end of the tube holder. The rubber stopper at the top of the VACUTAINER, upon insertion, would slidably push the closed end of the sheath toward the tip of the cannula so that the former is pierced by the latter. Thereafter, the rubber stopper of the VACUTAINER tube is likewise pierced by the cannula so that a fluid communication path is effected between the inside of the VACUTAINER tube and the blood collection bag to which the blood collection cannula is connected. Internal locking means within the tube holder provides fixed retention of the cannula within the sheath and the tube holder so that the cannula would remain in place within the tube holder.

REFERENCES:
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patent: 4140108 (1979-02-01), Nugent
patent: 4819659 (1989-04-01), Sitar
patent: 4840185 (1989-06-01), Hernandez
patent: 4841985 (1989-06-01), Wanamaker
patent: 5270003 (1993-12-01), Bernes et al.
patent: 5279583 (1994-01-01), Shober, Jr. et al.

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