Flashback blood collection needle

Details Flashback blood collection needle Flashback blood collection needle

A - Human Necessities

61

B

A61B 5/15 (2006.01)

Patent

CA 2512067

A needle assembly (10) includes a transparent or translucent housing (13) with a fluid inlet end (14), a fluid outlet end (16) and a flashback chamber (22) therebetween. Substantially axially aligned inlet (26) and outlet (52) cannulas extend form the housing (12) and communicate with the chamber. The external end of the outlet cannula is covered by a sealable sleeve (61). Relative volumes of the cannulas, the chamber and the sleeve are selected to provide rapid reliable flashback indicative of venous entry.

L'invention concerne un ensemble aiguille (10) comprenant un boîtier transparent ou translucide (13) à extrémité d'entrée de fluide (14), à extrémité de sortie de fluide (16) et à chambre de retour (22) située entre les deux extrémités. Des canules d'entrée (26) et de sortie (52) sensiblement alignées de façon axiale s'étendent à partir du logement (12) et communiquent avec la chambre. L'extrémité externe de la canule de sortie est recouverte d'un manchon (61) pouvant être scellé. Les volumes relatifs aux canules, la chambre et le manchon sont choisis de manière à fournir un retour fiable rapide indicatif de l'entrée veineuse.

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