A pen needle (30) for a delivery device includes a hub (32) supporting a needle (54) and a distal needle shield (70) that can retract to expose the needle during injection and return to the extended position after use and lock in the extended position to cover the needle. A proximal needle shield (0.102) moves from a retracted position to an extended position with respect to the hub to shield or cover a proximal end of the needle when the needle hub is separated from the delivery device. A spring (130) extends between the distal needle shield and the proximal needle shield to bias each needle shield to the respective extended position. The distal needle shield (70) is coupled to the proximal needle shield (102) in an initial position to retain the spring (130) in a compressed state. The distal needle shield (70) is depressed to disengage the distal needle shield from the proximal needle shield (102) so that the spring expands to an extended state and moves the shields to the extended positions. A locking member (142, 156) can be provided to lock the proximal needle shield (70) and distal needle shield (102) in the extended position.

It is an object of the present invention to provide a syringe which is capable of preventing an accident such that a patient inadvertently sticks her/his hand with an injection needle when improperly performing a needle retracting operation. A sleeve (10) is fitted around a syringe barrel (2) so as to be axially movable from an administration position such that the injection needle (5) projects to a distill side to an accommodation position such that the injection needle (5) is accommodated. A coil spring (16) for biasing the sleeve (10) toward the accommodation position is provided between the sleeve (10) and the syringe barrel (2), and is held in a compressed state in a spring holder (17). The spring holder (17) is disposed in association with the syringe barrel (2) so as to release the coil spring by further pushing the syringe barrel (2) to the distal side after completion of the administration of a liquid drug. The sleeve (10) is axially engaged with the syringe barrel (2) so as to be locked at the accommodation position when being moved to the accommodation position by a biasing force of the coil spring (16).

A device for administering a fluid medicament by injection comprises a dosing portion (1) with a collapsible reservoir (10). The reservoir (10) has a maximum volume in an extended state and a minimum volume in a collapsed state. Prior to injection, the reservoir (10) is in the extended state and contains a liquid to be administered, and the reservoir (10) is biased towards the collapsed state. The device further comprises a needle (2), wherein a lumen (20) of the needle (2) is in fluid communication with the reservoir (10). The device further comprises a shield portion (3) with a plug (30). Prior to injection, the shield portion (3) is in a deployed position where the plug (30) blocks the lumen (20) of the needle (2). The shield portion (3) is adapted to move in response to an actuation force from the deployed position to a retracted position where the lumen (20) of the needle (2) is open, thereby causing the reservoir (10) to shift to the collapsed state to expel the liquid through the needle.

A needle unit (20) comprising: a needle hub (21) comprising a needle (23) and a needle shield (22), wherein the needle hub (21) and the needle shield (22) are arranged to form a needle unit (20) where the needle hub is arranged displaceably inside the needle shield such that the needle hub is displaceable along an axis which is parallel with the longitudinal axis of the needle (23) between a shielded position and an exposed position. The needle hub (21) further comprises a first hub locking element (24) and a second hub locking element (26) and the needle shield (22) further comprises a first shield locking element (25) and a second shield locking element (27), said first hub locking element (24) and said first shield locking element (25) engaging each other in the shielded position to establish a first releasable locking mechanism (24, 25) between the needle hub (21) and the needle shield (22), said second hub locking element (26) and said second shield locking element (27) engaging each other in the shielded position to establish a second locking mechanism (26, 27) between the needle hub (21) and the needle shield (22), both the first and second locking mechanisms (24, 25, 26, 27) being arranged as shock proof locks, and where the first releasable lock mechanism (24, 25) is arranged to engage with the lock release element (31) of the injection device (1) when the needle unit (20) is coupled to the injection device, said engagement allowing the first releasable lock mechanism (24, 25) to be unlocked. The invention further provides an injection device comprising the needle unit and a method of assembling an injection device with the needle unit.

The present disclosure relates to an injection needle assembly for use in a medicament delivery device. The injection needle assembly comprises an injection needle holder, an injection needle fixed to said injection needle holder, the injection needle having a proximal end and a distal end, and a sealing assembly for sealing the distal end of the injection needle. The sealing assembly comprises a spacer element surrounding the distal end of the injection needle and a sealing membrane for sealing the distal end of the injection needle.

A pen needle apparatus includes a housing (32), a movable gripping mechanism (34) for gripping a pen needle assembly (18), and an actuator (36). The gripping mechanism (34) includes first and second pivoting arms (44) that pivot between a first closed position and a second open position. In the closed position, the arms engage and grip the outer cover (22) of the pen needle assembly (18) so that the needle hub (16) can be separated from the outer cover (22) and the pen needle placed back in the outer cover (22) after use of the pen needle. The actuator (36) is connected to the arms (44) where movement of the actuator pivots the arms to a second open position to release the outer cover of the pen needle assembly. The arms include a gripping surface for engaging the inner shield (24) of the pen needle assembly to assist in removing the inner shield (24) from the needle hub (16).

A needle hub assembly for a pen needle includes a needle hub, a cannula or needle coupled to the needle hub, a retractable and compressible sleeve covering at least one end of the cannula, and an outer cover. The outer cover encloses the needle hub and the retractable sleeve. The retractable sleeve is coupled to the hub to cover the end of the cannula where the sleeve can pass through or can be pierced by the cannula and the sleeve retracts axially on the cannula. The sleeve is resilient and returns to an original configuration when an insertion force is released. The needle hub can have a first sleeve to cover a patient end of the cannula, and second sleeve to cover a non-patient end of the cannula where the sleeves retract onto the cannula or hub and expand to the original configuration to cover the ends of the cannula.

A device for delivering a fluid into a biological tissue includes hollow microneedles (10) projecting from a surface (12) of a substrate (14), and a guide element (18) spaced from the substrate. The guide element provides a tissue-contact surface (20) that defines a tissue contact plane oblique to the surface (12) of the substrate (14).

A method of providing and/or injecting octreotide acetate to a subject in need thereof includes storing the octreotide acetate in a cartridge of a multi-use multi-dose injector provided with a variable dose setter and actuator. The injector includes a needle configured for subcutaneous administration of the octreotide acetate, the octreotide acetate having a concentration of 2,500 μg/mL. The method further includes providing, on the injector, a plurality of indicia only at prescribed doses of 50 μg, 100 μg, 150 μg and 200 μg settable via the dose setter without indicia between said prescribed doses; and permitting setting of a dose of the octreotide acetate by rotation of the variable dose setter, wherein the injector is configured to provide at least one audible feedback during the rotation.

A pen needle and a method of using the pen needle. The pen needle includes a housing, a needle carrier in the housing supporting a needle, a distal shroud positioned around the needle within the housing, a distal compression spring positioned around the needle between the needle carrier and the distal shroud, a proximal shroud positioned around the needle within the housing, and a proximal compression spring positioned around the needle between the needle and the proximal shroud. The proximal shroud is movable between a first position, in which it engages the distal shroud to hold it in engagement with the housing, and a second position in which the proximal shroud is disengaged from the distal shroud allowing the distal shroud to move in a distal direction to project from the housing and surround the end of the needle.