Low-noise vacuum release suction device and controllable...

Details Low-noise vacuum release suction device and controllable... Low-noise vacuum release suction device and controllable...

A - Human Necessities

61

M

A61M 1/00 (2006.01) A61C 17/08 (2006.01)

Patent

CA 2530188

The present invention is concerned with a vacuum release suction device for regulating and controlling suction in an aspiration line, and which may be included in aspirators such as for example dentistry, surgery, or cosmetic tools. When operated, such tools generally generate noise which may become harmful to the tool user or for the patient on which the tool is used. More specifically, the suction device of the present invention includes a body having an inlet port and an outlet port defining a chamber in the body and a bypass inlet intersecting the chamber at an acute angle with respect to the longitudinal axis of the chamber, such that a main fluid stream is generated with minimized occurrences of flow separation, turbulence and therefore minimized generated aerodynamic noise.

La présente invention concerne un dispositif d'aspiration casse-vide permettant de réguler et de commande l'aspiration dans une ligne d'aspiration, qui peut être incorporé dans des aspirateurs utilisés en dentisterie, chirurgie ou cosmétique, par exemple. Lorsqu'ils sont enclenchés, de tels outils produisent généralement du bruit qui peut être dommageable pour la personne qui les utilise ou pour le patient. Plus précisément, le dispositif d'aspiration de l'invention comprend un corps dont l'orifice d'entrée et l'orifice de sortie définissent une chambre et une entrée en dérivation qui coupe la chambre selon un angle aigu par rapport à l'axe longitudinal de ladite chambre, de telle sorte qu'est produit un courant principal de fluide avec ruptures de flux et turbulences minimum, et donc production réduite de bruits aérodynamiques.

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