Ophthalmic injection device including dosage control device

Details Ophthalmic injection device including dosage control device Ophthalmic injection device including dosage control device

A - Human Necessities

61

F

A61F 9/00 (2006.01) A61M 5/145 (2006.01) A61M 5/20 (2006.01) A61M 5/31 (2006.01) A61M 5/44 (2006.01)

Patent

CA 2666948

An injection device includes a dispensing chamber, a plunger, a controller, a temperature control device, and a memory device. The dispensing chamber has an inner surface and an outer surface. The inner surface defines a cavity for receiving a quantity of a substance. The plunger is engaged with the inner surface of the dispensing chamber, is capable of sliding in the cavity of the dispensing chamber, and is fluidly sealed to the inner surface of the dispensing chamber. The controller controls the operation of the injection device. The temperature control device at least partially surrounds the dispensing chamber. The memory device has a parameter stored on it. The controller uses the parameter from the memory device to operate the injection device.

L'invention concerne un dispositif d'injection comportant une chambre de distribution, un piston plongeur, une commande, un dispositif de commande de température, et un dispositif mémoire. La chambre de distribution présente une surface intérieure et une surface extérieure. La surface intérieure définit une cavité destinée à recevoir une quantité de substance. Le piston plongeur est en contact avec la surface intérieure de la chambre de distribution, peut coulisser dans la cavité de la chambre de distribution et est rendu fluidiquement étanche sur la surface intérieure de la chambre de distribution. La commande commande le fonctionnement du dispositif d'injection. Le dispositif de commande de température entoure au moins partiellement la chambre de distribution. Un paramètre est mémorisé sur le dispositif mémoire. La commande utilise le paramètre provenant du dispositif mémoire pour actionner le dispositif d'injection.

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