Injection device
OwnerEdgar Hommann, Hans-Christian Ruehrnschopf +2inventors
InventorsEdgar Hommann, Hans-Christian Ruehrnschopf, Ian Thompson, Markus Tschirren
Life of this patent
Estimating the term…
Abstract
The invention relates to an injection device including a tubular casing for a reservoir (ampoule) for a medicinal fluid, an injection needle, and a needle protecting sleeve which may be axially shifted on the casing between a protective position in which it surrounds the injection needle and a functional position in which it exposes the injection needle, wherein, in the protective position, the distal end of the needle protecting sleeve axially abuts at least one stopper and, in order to release the sleeve, the at least one stopper is radially shifted by applying a force to the casing.
Claims13
An injection device, comprising:
- a) a tubular casing for a reservoir for a medicinal fluid;
- b) an injection needle;
- c) a needle protecting sleeve which may be axially shifted on said casing between a protective position in which it surrounds said injection needle and a functional position in which the injection needle is exposed;
- d) a means for latching said needle protecting sleeve in said protective position;
- and
- e) a means for releasing said latch, such that the needle protecting sleeve may be shifted into said functional position;
- wherein:
- f) in the protective position, the needle protecting sleeve axially abuts at least one stopper associated with the casing and is thus latched;
- and
- g) in order to release the latch, the at least one stopper is shifted and released from abutting the needle protecting sleeve by applying a force to the casing perpendicular to the direction of movement of the needle protecting sleeve.
An injection device comprising a tubular casing, an injection needle coupled to the casing, and a needle protecting sleeve which may be axially moved relative to the casing between a protective position in which the injection needle is covered and a functional position in which the injection needle is exposed, wherein, in the protective position, a distal end of the needle protecting sleeve axially abuts at least one stopper associated with the casing and, in order to move the sleeve to the functional position, the at least one stopper is radially shifted by applying a force to the casing.
Dependencies are inferred from the claim text.