Injection Device
AssigneeCilag GmbH International
InventorDouglas Ivan Jennings
Life of this patent
Estimating the term…
Abstract
An injection device 110 is described having a housing 112 and a cap 130. The injection device 110 houses a syringe 114 having a needle which is sealed by a boot 118. The cap 130 is arranged so that the boot 118 can be connected to the cap 130 whilst exerting a minimal force on the syringe, but cannot be removed from the cap 130 without applying a significantly greater force to the syringe. The housing 112 and cap 130 are arranged so that upon removal of the cap 130 from the housing 112, the boot 118 is removed from the syringe 114.
Claims29
A cap for an injection device, the cap comprising:
- a first part having a first end for receiving an injection device and a second end, the first part defining a first axis and having grip means for gripping the boot of a syringe, wherein the grip means is movable from a first position to a second position, the second position being further from the first axis than the first position;
- and
- a second part having retention means arranged such that movement of the retention means from a third position to a fourth position prevents the grip means from moving from the first position to the second position.
A cap according to any preceding claim wherein the retention means comprises a ring shaped portion.
A cap according to any preceding claim wherein the second part of the cap is provided with a movable protrusion which can communicate with a corresponding ridge proximal to the second end of the first part of the cap.
An injection device comprising:
- a housing containing a syringe having a discharge nozzle and a boot that covers the discharge nozzle, wherein the boot extends from a first end of the housing through an exit aperture;
- and
- a cap according to any preceding claim.
A method of attaching a cap to a boot of a syringe comprising:
- providing a cap comprising:
- a first part having a first end for receiving an injection device and a second end, the first part defining a first axis and having grip means for gripping the boot of a syringe, and
- a second part having retention means, wherein
- the grip means is arranged in a first position and the retention means is arranged in a third position;
- inserting a boot of a syringe into the cap so that the grip means moves from the first position to a second position, the second position being further from the first axis than the first position,
- inserting the boot of the syringe further into the cap so that the grip means moves from the second position to the first position, and the boot is gripped by the grip means;
- and
- moving the retention means from the third position to a fourth position, thus preventing the grip means from moving from the first position to the second position, such that the boot cannot be removed from the cap.
A cap substantially as hereinbefore described with reference to and as shown in the attached drawings.
An injection device substantially as hereinbefore described with reference to and as shown in the attached drawings.
Dependencies are inferred from the claim text.