One step catheter advancement automatic needle retraction...

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/32 (2006.01) A61M 25/06 (2006.01)

Patent

CA 2201055

The one step catheter advancement automatic needle retraction system of this invention includes a generally hollow barrel, a needle hub which can include a flashback chamber disposed in the barrel, a secondary flashback chamber disposed in the barrel, a biasing mechanism for retracting the needle into the barrel and a clip associated with the secondary flashback chamber for engaging a catheter hub. The needle hub in conjunction with the secondary flashback chamber retain the needle in the extended position against the force of the biasing mechanism until the catheter has been advanced a certain distance from the distal end of the barrel.

Système en une étape de rentrée d'aiguille automatique et de poussée d'un cathéter, constitué d'un corps généralement creux et d'un embout d'aiguille. Il peut inclure un compartiment de retour arrière disposé dans le corps, un compartiment secondaire de retour arrière disposé dans le corps, un mécanisme de déplacement oblique pour rentrer l'aiguille dans le corps, ainsi qu'une agrafe liée au compartiment secondaire de retour arrière pour engager l'embout du cathéter. L'embout de l'aiguille, conjointement avec le compartiment secondaire de retour arrière, retient l'aiguille en position de sortie contre la force du mécanisme de déplacement oblique, jusqu'à ce que le cathéter soit poussé à une certaine distance de l'extrémité distale du corps.

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