Drug injection system with self-aspiration feature

Details Drug injection system with self-aspiration feature Drug injection system with self-aspiration feature

A - Human Necessities

61

M

A61M 5/178 (2006.01) A61M 5/24 (2006.01) A61M 5/31 (2006.01)

Patent

CA 2175512

The present invention provides in part an improved drug injection system, comprising novel self-aspirating syringes, drug cartridge and and novel needle assemblies. It is primarily intended for administering of local anesthetic by dentists, but it can be used equally well in medical and veterinary applications. In one aspect, the novel syringe is made lightweight, comfortable to hold and corrosion resistant. In another aspect, some novel changes in the design of the syringe reduce the possibility of transmitting an infection from the blood of one patient into the blood of another. Additionally, innovation in the design of needle assembly makes the syringe safe to use even without prior sterilization and at the same time eliminating the possibility of transmitting infection as the result of human error.

Invention qui comprend entre autres un système amélioré d'injection de médicaments, équipé de seringues auto-aspirantes, de cassettes de médicaments et de nouveaux ensembles d'aiguilles. Elle est surtout utilisée par les dentistes pour administrer un anesthésique local, mais elle peut également avoir des applications en médecine clinique et vétérinaire. D'une part, la nouvelle seringue est légère, facile à manier et résiste à la corrosion. D'autre part, certains changements apportés à la conception de la seringue réduisent le risque de transmission d'une infection par voie sanguine d'un patient à une autre personne. En outre, la nouvelle conception de l'ensemble aiguille fait que la seringue peut être utilisée de façon sûre même avant d'être stérilisée et sans risque de transmettre une infection à la suite d'une erreur humaine.

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