Device for metered administration of an injectable product
First Claim
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1. A device for metered administration of an injectable product, comprising:
- (a) a base section forming a portion of a housing, (b) a container arranged in said base section, from which container a dose of the injectable product is dispensed through a needle by advancing in a forward direction at least one piston arranged in said container, (c) a drive unit comprising a driven member projecting into the container, said driven member advancing the piston in said forward direction upon actuation of the drive unit, and (d) a metering device for setting a length over which the driven member is displaced in relation to the base section, said metering device comprising a first metering means and a second metering means, the second metering means being adjustable in relation to the first metering means, wherein the first and second metering means are arranged in said container and metering is effected by interaction of the first and the second metering means within said container.
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Abstract
The present invention provides a device for metered administration of an injectable product including a base section, a container, a drive unit including a driven member projecting into the container, and a metering device for setting the path length of displacement of the driven member in relation to the base section upon actuation of the drive unit, wherein the metering device includes a first and second metering structure.
78 Citations
16 Claims
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1. A device for metered administration of an injectable product, comprising:
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(a) a base section forming a portion of a housing, (b) a container arranged in said base section, from which container a dose of the injectable product is dispensed through a needle by advancing in a forward direction at least one piston arranged in said container, (c) a drive unit comprising a driven member projecting into the container, said driven member advancing the piston in said forward direction upon actuation of the drive unit, and (d) a metering device for setting a length over which the driven member is displaced in relation to the base section, said metering device comprising a first metering means and a second metering means, the second metering means being adjustable in relation to the first metering means, wherein the first and second metering means are arranged in said container and metering is effected by interaction of the first and the second metering means within said container. - View Dependent Claims (2, 3, 4)
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- 5. An injection device for metered administration of an injectable substance, said device comprising a base section forming a portion of a housing, a container located within the base section, a drive unit operably coupled to the base section and container and including a drive member projecting into the container, and a metering device, located inside the container, for setting a length of displacement of the driven member in relation to the base section upon actuation of the drive unit.
- 9. A metering mechanism for choosing a length over which a driven member is displaced in an injection system, comprising a first metering mechanism and a second metering mechanism, the second metering mechanism being adjustable in relation to the first metering mechanism, wherein said first and second metering mechanisms are arranged in a container wherein the container is located within a housing, and metering is effected by interaction of the first and second metering mechanism within said container.
Specification