A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/32 (2006.01) A61B 18/00 (2006.01) H01H 9/02 (2006.01) H01H 9/04 (2006.01)
Patent
CA 2359556
Methods of controlling fluid flow (e.g., flow of liquids, water vapor and gases) through switch members, e.g., switch buttons, which are used to seal an interior cavity of a surgical handpiece are provided. The switch members provide improved sealing properties which prevent gas and water vapor transmission across the switch member and into and out of the sealed internal switch chamber. The switch members are also resistant to puncture due to striking by tools or cleaning instruments, or the like.
Sont décrites des méthodes de contrôle de débit de fluide (p. ex..débit de liquides, de vapeur d'eau, de gaz) à l'aide d'éléments de contact, p. ex. des boutons de contact, servant à étancher une cavité intérieure d'un instrument chirurgical de coupe. Les éléments de contact assurent de meilleures propriétés d'étanchéité pour empêcher le passage de gaz et de vapeur d'eau au-delà des éléments de contact et à l'intérieur et à l'extérieur de la chambre interne de contact étanche. Les éléments de contact résistent aussi aux perforations causées par le choc d'outils ou d'instruments de nettoyage ou d'autres objets du même genre.
Donofrio William T.
Gill Robert P.
Ethicon Endo-Surgery Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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