A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
A61C 3/025 (2006.01)
Patent
CA 2125170
Improvements are provided for a dental air abrasive system (10) of the type which utilizes a compressed gas or air (12) which creates a gas stream. Abrasive particles are introduced into the gas stream and expelled out through one end of a nozzle (24) whereupon the abrasive laden gas stream impinges upon the target, i.e. tooth amalgam, composites, stain and/or tooth dental filling materials. The improvements include the use of tow (22, 28) or more hoppers each containing different sized abrasive particles, which are selectively fed, either together or independently of each other, into the gas stream. Different sized abrasive particles are provided in each hopper for cutting different types of tooth structures. Other improvements include the use of fluorescent and/or colored abrasive particles lo facilitate the aiming process, a laser beam, strobe, white light or other illuminating means for aiming the abrasive stream and/or illuminating the target area as well as a disposable nozzle for hygienic reason.
Cette invention concerne des améliorations apportées à un appareil de dentisterie à jet d'air ou de gaz comprimé véhiculant des abrasifs. Les particules abrasives injectées dans le flux de gaz sortent d'un ajutage pour frapper la cible qui peut être un amalgame ou composite dentaire, une tache et/ou un produit d'obturation dentaire. Les améliorations comprennent l'utilisation de deux trémies ou plus, remplies chacune de particules de grosseurs différentes que l'on injecte dans le flux de gaz ensemble ou séparément. L'idée d'avoir des particules de grosseurs différentes dans les diverses trémies vise à pouvoir traiter différents types de structure dentaire. Autres améliorations : emploi de particules fluorescentes et/ou colorées aidant à la précision du travail, faisceau laser, éclairage stroboscopique, lumière blanche ou autre moyen d'éclairage permettant de mieux viser et/ou mieux éclairer la cible ainsi que ajutages jetables pour fins d'hygiène.
Goldsmith Daniel S.
Howell Michael P.
Parker William S.
American Dental Laser Inc.
Smart & Biggar
LandOfFree
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