Parenteral fluid transfer apparatus

A - Human Necessities – 61 – M

Patent

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Details

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

Patent

CA 2284558

A novel self-blunting needle apparatus (10d) employs a blunting member (70) and a needle (12). The blunting member (70) may be disposed within the needle (12) and may be adapted for fluid flow therethrough. The needle (12) may then be inserted into a patient's tissue and the blunting member (70) may be extended to blunt the apparatus. In other embodiments, e.g., apparatus (10), a driver (76) may be employed to move the blunting member (70) without obstructing fluid flow. There may be a locking spline (58) and cam channel (30) configuration to prevent backward motion of the blunting member (70) in various embodiments. A hollow body (22) is configured to facilitate assembly.

L'invention concerne un nouveau dispositif (10d) à aiguille auto-épointée comprenant un élément (70) d'émoussement et une aiguille (12). L'élément (70) d'émoussement peut être disposé à l'intérieur de l'aiguille peut être adapté pour permettre l'écoulement d'un liquide. L'aiguille (12) peut être introduite dans les tissus d'un patient et l'élément (70) d'émoussement peut faire saillie de façon à émousser le dispositif. Selon d'autres modes de réalisation, par exemple le dispositif (10) peut comporter un élément (76) d'entraînement servant à déplacer l'élément (70) d'émoussement sans obstruer le passage du liquide. Une clavette (58) de blocage et un passage (30) à cames empêchent tout mouvement en arrière de l'élément (70) d'émoussement dans différents modes de réalisation. Un corps creux (22) est formé de façon à faciliter l'assemblage.

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