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US 6,638,255 B1Granted
Injection device
AssigneeDieter Holzle Technik-Projekte GmbH
InventorWilfried Weber
Life of this patent
Estimating the term…
Abstract
An injection device used to accommodate a commercially available syringe in simple components whereby the use thereof enables push-in and injection to occur successively, especially in the case of manual operation. The operations can also be carried out automatically with the aid of simple additional components.
Claims18
An injection device having:
- a syringe with a syringe barrel;
- a needle assembly with a needle;
- a plunger with a plunger rod;
- a and a flange that encompasses the opening of the syringe barrel to the plunger rod;
- coupling element (30,30A,30B) provided on the syringe barrel (11) or on the plunger rod (13), which blocks the plunger rod (13) from being pushed in (blocking positions that holds the syringe (10) inside the guide element 33 (20,20A,20B) so that the syringe is slidable by a penetration stroke (H1), the guide element (20,20A,20B), after placement onto the injection site prior to starting the penetration stroke (H1) in the blocked position, extending beyond the needle (15);
- and a trigger mechanism positioned within the guide element (20,20A,20B) to release the blocking of the plunger rod (13) to release the injection stroke (H2) (release position) when the needle (15) has reached a subcutaneous injection site after completion of the penetration stroke (H1).
3 more elements
Dependencies are inferred from the claim text.