Automatic injection device
First Claim
1. An auto-injection device for administering a product, comprising:
- a) a housing;
b) a container shiftably accommodated by said housing from which the product is dispensed through a needle at an outlet of said container by advancing a piston; and
c) a driven member of a drive unit, the driven member being shiftably accommodated by said housing and, during an auto-injection, being adapted for inserting said needle, advancing said container to a predetermined frontal position in relation to said housing and advancing said piston within said container for dispensing of the product, wherein said driven member remains uncoupled with said piston until reaching said frontal position of said container, and upon reaching the frontal position said driven member becomes decoupled from said container and becomes coupled with said piston for advancement of said piston within said container.
2 Assignments
0 Petitions
Accused Products
Abstract
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.
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Citations
16 Claims
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1. An auto-injection device for administering a product, comprising:
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a) a housing;
b) a container shiftably accommodated by said housing from which the product is dispensed through a needle at an outlet of said container by advancing a piston; and
c) a driven member of a drive unit, the driven member being shiftably accommodated by said housing and, during an auto-injection, being adapted for inserting said needle, advancing said container to a predetermined frontal position in relation to said housing and advancing said piston within said container for dispensing of the product, wherein said driven member remains uncoupled with said piston until reaching said frontal position of said container, and upon reaching the frontal position said driven member becomes decoupled from said container and becomes coupled with said piston for advancement of said piston within said container. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An injection device comprising a housing, a container shiftably accommodated by said housing, said container carrying a needle and accommodating a moveable piston, and a drive unit comprising a driven member shiftably accommodated by said housing wherein, during an injection, the driven member is adapted for inserting said needle and advancing said container to a predetermined position in relation to said housing, at which said predetermined position said driven member is decoupled from said container and coupled with said piston for moving said piston within said container.
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16. An auto-injection device for administering a product, comprising:
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a) a housing;
b) a container shiftably accommodated by said housing, from which product is dispensed through a needle at an outlet of said container by advancing a piston; and
c) a driven member of a drive unit, the driven member being shiftably accommodated by said housing and, during an auto-injection, for inserting said needle advancing said container to a predetermined frontal position in relation to said housing and advancing said piston within said container for dispensing of product, characterized in that d) said driven member is not coupled with said piston until reaching said frontal position of said container, and upon reaching this position said driven member is decoupled from said container and coupled with said piston for advancing said piston within said container.
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Specification