Blood collecting needle with vein indicator

Details Blood collecting needle with vein indicator Blood collecting needle with vein indicator

1994-02-22

1996-05-28

Yasko, John D.

Surgery

Truss

Pad

604274, 604126, 604900, A61B 500, A61M 100, A61M 532

Patent

active

055201938

ABSTRACT:
A needle assembly for evacuated blood collection tubes or containers comprises a single needle cannula, a needle cannula support made of a translucent or transparent material provided on the middle portion of the needle cannula, a blood flow confirmation passage formed in the interior of the needle cannula support and communicating with one end of the needle cannula, said one end being covered with an elastomeric resilient cap, and an air-permeable, blood repellant plug provided at an opening end of the passage.

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patent: 5222502 (1993-06-01), Kurose
patent: 5242411 (1993-09-01), Yamamoto et al.
patent: 5354537 (1994-10-01), Moreno

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