Spring loaded retractable cannula blood drawing device

Details Spring loaded retractable cannula blood drawing device Spring loaded retractable cannula blood drawing device

1997-03-14

1998-06-23

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

128763, A61M 500

Patent

active

057698260

ABSTRACT:
A blood collection device for use with vacuum sample tube is provided having a retractable carrier for a double cannula. A compress spring is mounted between the carrier and the proximal end of the barrel to bias the carrier backward into the barrel. A releasable retaining means is provided to retain the carrier in the proximal end with one end of the double cannula exposed for use. When the retaining means is released the carrier is automatically retracted into the barrel. A cap is provided to cover the original open end and a resealable puncture pad covers the proximal end after the carrier has been retracted.

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patent: 4892107 (1990-01-01), Haber
patent: 5070885 (1991-12-01), Bonaldo
patent: 5120311 (1992-06-01), Sagstetter et al.
patent: 5137521 (1992-08-01), Wilkins
patent: 5374250 (1994-12-01), Dixon
patent: 5423758 (1995-06-01), Shaw

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