Injection device with pricking protection and/or overload protection for a product container
AssigneeTecPharma Licensing AG
InventorsPatrick Vogt, Ursina Streit
Life of this patent
Estimating the term…
Abstract
An injection device having a distal end, and including a needle located inside the injection device in an initial position, wherein the needle is moveable to a puncturing position in which the needle projects from the distal end, an open region located distally relative to the needle in the initial position of the needle and having a dimension, and a reduction piece moveable relative to the opening region whereby the dimension may be reduced.
Claims21
An injection device for administering a product, comprising a distal end and a needle, wherein the needle is situated within the injection device in an initial position and can be moved to an injection position, the injection device further comprising:
- a) an opening region situated distally with respect to the needle when the needle is in the initial position and having a cross-section;
- b) a reducing piece moveable into the opening region to reduce the cross-section of the opening region;
- c) a needle protecting sleeve which serves as a triggering element for triggering an injection movement of the needle, wherein the needle protecting sleeve can be shifted in a proximal direction relative to a housing of the injection device to trigger the injection movement and can be shifted in a distal direction over the needle situated in the injection position;
- and
- d) an elasticity means against which the needle protecting sleeve can be shifted for triggering and with which the needle protecting sleeve can be shifted in the distal direction over the needle situated in the injection position.
Dependencies are inferred from the claim text.