Insert device for facilitating limited aspiration of a delivery

Details Insert device for facilitating limited aspiration of a delivery Insert device for facilitating limited aspiration of a delivery

1992-12-14

1994-12-06

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604187, 604208, 604218, A61M 532

Patent

active

053706218

ABSTRACT:
A delivery apparatus in the form of a syringe assembly and piston with structure for preventing withdrawal of the piston a distance more than the thickness of one piston. The syringe is preferably prefilled and sterilized to provide a sterile syringe assembly with sterile fluid contents. Controlled, limited withdrawal of the piston facilitates aspiration of the syringe without the contamination risks caused by withdrawing the piston so as to allow the sterile fluid to contact the exposed portion of the syringe container portion behind the piston.

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EP 0478281 A1, Bates et al., Apr. 1, 1992.

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