Auto injector with automatic needle retraction
First Claim
1. An auto injector with a housing for accommodation ofa syringe with a needle, the syringe being movably positioned in the housing between a first position in which position the needle is accommodated inside the housing and a second position in which position the needle protrudes outside the housing,a driver comprising a single spring, the driver being configured for applying a force to the syringe thereby moving the syringe from the first position to the second position,wherein the driver is also configured for applying a force to the syringe thereby moving the syringe from the second position to a retracted position upon user operation of a release member.
1 Assignment
0 Petitions
Accused Products
Abstract
The present application relates to a disposable auto injector (10) that can be safely operated for automatic injection of a dose of medication and having a housing (12) for accommodation of a syringe (18) with a needle (20), the syringe being movably positioned in the housing between a first position in which position the needle is accommodated inside the housing and a second position in which position the needle protrudes outside the housing (22), a driver configured for applying a force to the syringe thereby moving the syringe from the first position to the second position, and wherein the driver is also configured for applying a force to the syringe thereby moving the syringe from the second position to a retracted position in which position the needle is accommodated inside the housing upon user operation of a release member (42).
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Citations
19 Claims
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1. An auto injector with a housing for accommodation of
a syringe with a needle, the syringe being movably positioned in the housing between a first position in which position the needle is accommodated inside the housing and a second position in which position the needle protrudes outside the housing, a driver comprising a single spring, the driver being configured for applying a force to the syringe thereby moving the syringe from the first position to the second position, wherein the driver is also configured for applying a force to the syringe thereby moving the syringe from the second position to a retracted position upon user operation of a release member.
Specification