Needle-tip shielding mechanism

A - Human Necessities – 61 – M

Patent

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Details

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

Patent

CA 2755370

A needle tip shielding mechanism is described herein. The shielding mechanism comprises an outer housing, an in-ner housing, and a needle having a needle feature. Generally, the outer housing comprises at least one adapter-interlock feature. Moreover, the inner housing comprises a needle-feature capture mechanism, such as a washer feature, and a needle-tip capture mechanism, such as duckbilled tip barrier. In some cases, the inner housing is slidably moveable within the outer housing. In such cases, the inner housing is movable between a first position that biases the adapter-interlock feature into an engaged position and a second position that allows the adapter-interlock feature to move to an unengaged position. This ability to bias the interlock fea-ture in the engaged position and to allow the interlock feature to move to the unengaged position allows the shielding mechanism to be selectively coupled to and released from an interlock-feature mating component within a catheter adapter.

La présente invention concerne un mécanisme de protection de pointe d'aiguille. Le mécanisme de protection comprend un boîtier externe, un boîtier interne, et une aiguille ayant une caractéristique d'aiguille. De façon générale, le boîtier externe comprend au moins une caractéristique adaptateur-verrouillage. En outre, le boîtier interne comprend un mécanisme de capture de caractéristique d'aiguille, comme une rondelle, et un mécanisme de capture de pointe d'aiguille, comme une barrière de pointe à bec de canard. Dans certains cas, le boîtier interne peut coulisser dans le boîtier externe. Dans de tels cas, le boîtier interne peut se déplacer entre une première position qui engage le verrouillage et une seconde position qui désengage le verrouillage. Cette possibilité d'engagement du verrouillage et de désengagement du verrouillage permet que le mécanisme de protection soit sélectivement couplé à et libéré d'un composant de verrouillage homologue au sein d'un adaptateur de cathéter.

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