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US 6,280,421 B1Granted
Automatic injection device
AssigneeDisetronic Licensing AG
InventorsFritz Kirchhofer, Jürg Steck, Peter Hostettler, Stephan Jost
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AssigneeDisetronic Licensing AG
InventorsFritz Kirchhofer, Jürg Steck, Peter Hostettler, Stephan Jost
Estimating the term…
The present invention provides an auto-injection device including a housing, a container from which a product is dispensed by advancing a piston, the container shiftably accommodated by the housing and carrying a needle, and a drive unit including a driven member, wherein the driven member is shiftably accommodated by the housing and, during an auto-injection, is adapted for inserting the needle and advancing the container to a predetermined frontal position in relation to the housing and advancing the piston within the container for dispensing of the product, wherein the driven member remains uncoupled with the piston until the container reaches its frontal position, and upon the container reaching its frontal position, the driven member detaches from the container and couples with the piston for advancing the piston within the container.
An auto-injection device for administering a product, comprising:
An injection device comprising a housing, a container shiftably accommodated by the housing, the container carrying a needle and accommodating a moveable piston, and a drive unit comprising a driven member shiftably accommodated by the housing wherein, during an injection, the driven member is coupled to the container, and advances the container to a predetermined position in relation to the housing, wherein, upon reaching the predetermined position, the driven member is decoupled from the container and coupled with the piston for moving the piston within the container.
An auto-injection device for administering a product, comprising:
Dependencies are inferred from the claim text.