Back to results
US 10,518,044 B2Granted
Holder with safety shield for a drug delivery device
AssigneeBecton, Dickinson and Company
InventorFrank Francavilla
Life of this patent
Estimating the term…
Abstract
A holder with a safety shield for a drug delivery device; the shield obstructing access to a needle of the drug delivery device following use thereof. The safety shield may be actively deployed, in which case the health care worker must perform an action beyond complete depression of the pusher into the body of the drug delivery device to deploy the shield. Alternatively, the safety shield may be deployed passively or automatically, in which case deployment of the shield occurs upon complete depression of the pusher into the body, with no additional action required of the health care worker. The safety shield is springloaded and released to its extended position by a mechanical coupling of a series of position members, including levers, formed on the holder and the drug delivery device.
Claims20
An injection device comprising:
- a drug delivery device comprising:
- a body having a reservoir for containing a fluid, said body having a distal port through which the fluid may exit, said body further having a proximal port;
- a pusher including a pusher cap having a cap wall, a pusher stem connected in coaxial relation to said pusher cap and a stopper provided at an end of said pusher stem, said stopper being movable in said reservoir in a proximal to distal direction over a length defining an injection stroke;
- and
- a needle cannula provided on said body and in fluid communication with said reservoir through said distal port such that fluid within said reservoir can flow distally through said needle cannula and exit therefrom;
- and
- a holder comprising:
- a housing having a longitudinal housing cavity;
- a safety shield coaxially supported in said housing cavity, said safety shield being biased toward an extended position and being longitudinally displaceable relative to said housing from a retracted position to the extended position, in which said needle cannula is contained within said safety shield, said safety shield further comprising a shield latch deflectable between ready and released positions, said shield latch engaging said housing when said shield latch is in said ready position to hold said safety shield in said retracted position;
- and
- a retainer ring comprising a ring body coaxially supported around said body, said retainer ring further comprising a ring lever connected to said ring body for radially inward deflection between ready and released positions;
- said cap wall being insertable between said housing and retainer ring wherein insertion of the cap wall between the housing and retainer ring and in contact with the ring lever enables an inward radial deflection of said ring lever to said released position thereof resulting in deflection of said shield latch to said released position thereof resulting in said shield latch disengaging from said housing and movement of said safety shield toward said extended position, wherein said housing has a slot for aligning said ring lever and shield latch, and a housing edge extending into said slot engaged by said shield latch when said shield latch is in said ready position for holding of said safety shield in said retracted position.
9 more elements
A holder for a drug delivery device comprising:
- a housing defining a longitudinal housing cavity for accommodating the drug delivery device;
- a safety shield coaxially supported in said housing cavity and biased toward an extended position, said safety shield being longitudinally displaceable relative to said housing in a proximal to distal direction from a retracted position to an extended position;
- a shield latch deflectable between ready and released positions, said shield latch engaging said housing when said shield latch is in said ready position to hold said shield in said retracted position;
- a retainer ring comprising a ring body which is coaxially supported around said body, said retainer ring further comprising a ring lever connected to said ring body for radially inward deflection between ready and released positions;
- and
- a passively activated release mechanism radially aligned with said shield latch, a gap being defined adjacent said release mechanism, said gap being formed to receive a portion of the drug delivery device, wherein, with a portion of the drug delivery device being received in the gap, said release mechanism is passively deflected resulting in deflection of said shield latch to said released position thereof with said shield latch disengaging from said housing and movement of said safety shield toward said extended position, wherein said housing has a slot for aligning said ring lever and shield latch, and a housing edge extending into said slot engaged by said shield latch when said shield latch is in said ready position for holding of said safety shield in said retracted position.
3 more elements
Dependencies are inferred from the claim text.