A device for dispensing a flowable substance

A - Human Necessities – 61 – C

Patent

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Details

A61C 5/04 (2006.01) A61C 5/06 (2006.01) A61M 5/28 (2006.01) B05C 17/01 (2006.01) A61M 5/31 (2006.01) A61M 5/34 (2006.01)

Patent

CA 2217446

A device suited for dispensing a dental substance comprises a cartridge 20 for receiving the substance, with a curved dispensing nozzle 22 disposed at the front end and a flange 21 of octagonal cross-section provided at the rear end of the cartridge. The flange 21 serves to engage a slide-in socket 16 of an applicator 10 which includes a piston rod 12 for advancing a dispensing piston 23 disposed in the cartridge 20. In the retracted position of the piston rod 12, the cartridge 20 may be laterally inserted into the slide-in socket 16 of the applicator 10. The socket has two parallel walls spaced by a distance which is between the largest and the smallest diameter of the octagonal flange 21. The material of the flange 21 and/or the material forming the slide-in socket 16 is resilient so that the cartridge 20 may be stepwise rotated about the axis of the piston rod 12 with respect to the applicator 10 without requiring the piston rod 12 to be withdrawn and the cartridge 20 to be removed from the slide-in socket and re-inserted in a new orientation.

Dispositif convenant à la distribution d'une substance dentaire comprenant une cartouche (20) destinée à recevoir la substance, avec ajutage de distribution courbé (22) installé à l'extrémité avant et un rebord (21) de section octogonale ménagé à l'extrémité arrière de la cartouche. Le rebord (21) sert à la mise en contact avec la douille coulissante (16) d'un applicateur (10) qui comprend une tige de piston servant à pousser un piston distributeur (23) installé dans la cartouche (20). Lorsque la tige de piston (12) est rentrée, la cartouche (20) peut être introduite latéralement dans la douille coulissante (16) de l'applicateur (10). La douille comprend deux parois parallèles séparées par une distance comprise entre le plus grand diamètre et le plus petit diamètre du rebord octogonal (21). Le matériau du rebord (21) et/ou le matériau formant la douille coulissante (16) est souple de sorte que la cartouche (20) puisse être tournée par étapes autour de l'axe de la tige de piston (12) par rapport à l'applicateur (10) sans qu'il soit nécessaire de retirer la tige de piston (12) et la cartouche (20) de la douille coulissante, et de les réintroduire selon une nouvelle orientation.

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