A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 10/00 (2006.01)
Patent
CA 2385670
The needle comprises an external cannula (1) and a closing stem (3). The cannula (1) has one portion of relatively small thickness (s) and one portion, set at the mouth (1B) of the needle, of a larger thickness (s1), the two portions of different thickness being separated by an internal edge (1D) developed according to a plane (W) inclined with respect to the axis (X-X) of the cannula. Inserted between the cannula (1) and the stem (3) is a tubular element (5), which can slide axially and which can be controlled independently, the said tubular element (5) having one end provided with a tab- like extension (5C) designed to engage with said inclined edge (1D) so as to undergo deflection in order to close the mouth of the cannula (1).
Cette aiguille comporte une canule extérieure (1) et un fût à fermeture (3). Une partie de la canule (1) est relativement peu épaisse tandis qu'une autre partie, au niveau de l'embout (1B) de l'aiguille, est plus épaisse (s1). Ces deux parties, d'épaisseur différente, sont séparées par une cloison intérieure (1D) disposée selon un plan incliné par rapport à l'axe (X-X) de la canule. Entre la canule (1) et le fût (3) est inséré un élément tubulaire (5) pouvant coulisser axialement et être commandé de manière indépendante. Une extrémité de cet élément tubulaire (5) est pourvue d'un prolongement du type languette (5C) conçu pour venir au contact de la cloison inclinée (1D), ce qui provoque une déflexion et permet d'obturer l'embout de la canule (1).
Castellacci Pietro
Fetherstonhaugh & Co.
LandOfFree
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