Reusable pharmaceutical dispenser with full stroke indicator

Dispensing – With recorder – register – indicator – signal or exhibitor – Position or extent of motion indicator

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Details

222 47, 222137, 222309, 222145, 604186, 604191, B67D 522, B67D 552

Patent

active

052715272

ABSTRACT:
A pharmaceutical dispenser includes a housing (4), containing two pharmaceutical cartridges (32,34), slidably mounted to a sliding body (100). A replaceable needle manifold assembly (10) is mounted to the housing and fluidly couples the cartridges with a hypodermic needle at a common exit. The sliding body is part of a reciprocating drive assembly used to drive a pair of drive stems (88) against the pistons (96, 98) of the cartridges, thus forcing predetermined amounts of the pharmaceuticals out the needle. The movement of the sliding body between retracted and post-injection positions remains constant. However, the amounts and proportions of the pharmaceuticals injected during the delivery stroke is chosen by the user using stroke adjusters (182) carried by the sliding body. A bistable status flag (186) is mounted to the sliding body to indicate when the sliding body is in the post-injection and the retracted positions. The dosage adjustments are made when the sliding body is in the post-injection position. If a dose selected is more than is available, the sliding body is prevented from moving to the retracted position so that the status flag is not tripped.

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Brochure, "Product Information for the NovolinPen.TM., Insulin Delivery System," issue 1988, Squibb-Novo, Inc.

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