A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/32 (2006.01) A61J 1/20 (2006.01)
Patent
CA 2654636
A device is provided to protect the hypodermic needlepoint of a syringe from being dulled as it penetrates through the stopple of a fluid vial for the purpose of filling the syringe with fluid from the vial. Specifically, the device includes a blunt needle that covers the hypodermic needle and that interacts with the syringe to establish relative friction forces between them. Importantly, this friction force is less than the friction force subsequently established between the dull needle and the stopple. Thus, after the hypodermic syringe has been filled, and is withdrawn from the fluid vial, the stronger friction force between the stopple and the dull needle causes the dull needle to remain with the stopple as the hypodermic syringe is removed from the fluid vial.
L'invention a pour objet un dispositif de protection destiné à empêcher la pointe de l'aiguille hypodermique d'une seringue de s'émousser en perçant le bouchon d'un flacon empli de liquide pour remplir la seringue du liquide. Plus spécifiquement, le dispositif comporte une aiguille émoussée qui recouvre l'aiguille hypodermique et interagit avec la seringue pour créer une force de frottement relative entre les deux. Il est important que cette force de frottement soit moins grande que la force de frottement créée ensuite entre l'aiguille émoussée et le bouchon. De cette manière, lorsque la seringue hypodermique est remplie et est retirée du flacon de liquide, la force de frottement plus importante entre le bouchon et l'aiguille émoussée a pour conséquence que l'aiguille émoussée reste piquée dans le bouchon.
Asbaghi Hooman
Millerd Don
Macpherson Leslie & Tyerman Llp
Visual Connections Inc.
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