Spring loaded automatic retractable needle syringe

Details Spring loaded automatic retractable needle syringe Spring loaded automatic retractable needle syringe

1997-03-18

1999-03-23

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604110, A61M 500

Patent

active

058852573

ABSTRACT:
A spring loaded automatic retractable needle syringe is disclosed wherein a compressed spring is placed between a needle carrier and the distal end of the barrel and a cap placed over the distal end of the barrel. A releasable retaining means is provided to hold the needle carrier at the distal end. The needle extends through an opening in the end of the cap which is covered by a puncture pad. When the releasable retaining means is released the compressed spring pushes the needle carrier back up completely into the barrel. The puncture pad seals the opening in the cap.

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patent: 5484414 (1996-01-01), Pace

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