Patent ID: 11918791
Assignee: JANSSEN PHARMACEUTICA NV
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 10:
11. An injection device, comprising:
a manual injection device comprising:
a syringe housing adapted to hold a syringe body with a discharge nozzle;
a safety shield movable between a retracted position and an extended position, wherein the safety shield extends over the discharge nozzle when in the extended position;
a biasing device adapted to bias the safety shield to its extended position;
at least one movable latch adapted to hold the safety shield in its retracted position when in a locked position, and adapted to allow the safety shield to move to its extended position under the influence of the biasing device when in its unlocked position; and
a plunger adapted to deliver a dose of medicament through the discharge nozzle, the plunger being movable along a longitudinal axis from a distal position to a proximal position to deliver the dose of medicament, wherein the plunger comprises:
an actuation surface at the distal end of the plunger to which an actuation force can be applied for moving the plunger along the longitudinal axis to deliver the dose of medicament; and
an unlocking body proximal of the actuation surface and having an unlocking surface configured to unlock the at least one movable latch to allow the safety shield to move to its extended position when the unlocking body is moved proximally into engagement with the at least one movable latch, wherein the actuation surface has a cross-sectional dimension that is greater than a cross-sectional dimension of the unlocking body at the unlocking surface; and

a grip accessory, comprising:
a grip accessory housing comprising a generally hollow body for supporting the manual injection device therein, the grip accessory housing comprising:
a distal portion having a distal end comprising a first opening adapted to receive the manual injection device;
a proximal portion comprising a second opening through which a needle of the manual injection device is extendable, the proximal portion comprising a skin contacting surface at a proximal end of the grip accessory housing; and
an intermediate portion extending between the proximal and distal portions, wherein the unlocking body is more flexible than the distal end of the grip accessory housing.