Safety adapter for needle hub assembly

Details Safety adapter for needle hub assembly Safety adapter for needle hub assembly

A - Human Necessities

61

M

A61M 5/00 (2006.01)

Patent

CA 2579842

To retrofit a conventional needle hub assembly with a needle protection housing (36), a sleeve (2) having a collar (30) rotatably fitted thereabout is fitted to the needle hub (28). The sleeve (2) has a proximal portion and a distal portion. The proximal portion has a diameter that is dimensioned to fit over the needle hub (28) while the distal portion has a diameter that allows the needle cap (20) of the needle hub assembly to be inserted thereinto so as to be frictionally coupled to the needle hub (28). There are a plurality of flanges or ears extending at the proximal end of the proximal portion. These flanges are configured to overlie the flanges formed at the base of the needle hub (28) used to mate with the luer (66) of a syringe (64). When the needle hub assembly is threadingly mated to the luer (66) of the syringe (64), the sleeve (2), along with the collar (30) mounted thereabout and to which the needle protection housing (36) is attached, is also mated to the luer (66). As a consequence, a conventional needle hub assembly could be retrofitted with the inventive sleeve assembly without causing any dead space which may unnecessarily waste to be dispensed medicament and/or collected patient fluid.

Dans le but de doter a posteriori un ensemble porte-aiguille traditionnel d'un capot de protection d'aiguille (36), un manchon (2) comportant une collerette (30) montée rotative autour de celui-ci est monté sur le porte-aiguille (28). Le manchon (2) comporte une partie proximale et une partie distale. La partie proximale présente un diamètre dimensionné de façon à ce qu'elle s'ajuste sur le porte-aiguille (28) tandis que la partie distale présente un diamètre qui permet d'y insérer l'embout d'aiguille (20) de l'ensemble porte-aiguille de façon à le coupler par friction au porte-aiguille (28). Une pluralité de brides ou d'oreilles font saillie au niveau de l'extrémité proximale de la partie proximale. Ces brides sont configurées pour recouvrir les brides formées à la base du porte-aiguille (28) en vue de s'accoupler avec le raccord Luer (66) d'une seringue (64). Lorsque le porte-aiguille est vissé sur le raccord Luer (66) de la seringue (64), le manchon (2), ainsi que la collerette montée autour de celui-ci et à laquelle est attachée le capot de protection d'aiguille (36), sont également accouplés au raccord Luer (66). Il est donc possible doter a posteriori un ensemble porte-aiguille traditionnel de l'ensemble à manchon de l'invention sans créer d'espace vide qui pourrait gaspiller un médicament à administrer et/ou du fluide recueilli d'un patient.

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