A two body syringe carrier assembly for use in an injection device is presented where a force dampener is operatively connected to the two bodies to dissipate spring force at the completion of the penetration and/or injection steps. The injection device has a generally elongated tubular housing, a syringe containing medicament and having a needle, a needle shield slidably arranged to the housing and protruding a distance outside the front end of the housing, a plunger arranged to act on the syringe and a pre-tensioned drive member arranged the drive the plunger.

A safety injection needle device for delivery of a medicament from a storage reservoir with longitudinal axis A. The device includes: a device body; a needle; a needle shield device, and a spring. A rear end of the needle shield device is made of a deformable material such that at least a section of the rear end of the needle shield device is deformed such that the radius of the rear end is increased such that the needle shield device is locked in the extracted position.

An injection device 110 is described having a housing 112 that receives a syringe 114 having a needle 118, wherein the syringe is supported in a syringe carrier 150. The syringe 114 and syringe carrier 150 are biased by a return spring 126 from an extended position in which the needle 118 extends from the housing 112 through an exit aperture 128 to a retracted position in which it does not. A drive spring 130 acts via a drive to advance the syringe 114 from its retracted position to its extended position and discharge its contents through the needle 118 and a return spring 126, brought into play when the drive has reached a nominal return position, restores the syringe 114 to its retracted position. The syringe carrier 150 is designed to restrict rearward movement of the syringe so that the injection device is less prone to failure and damage to is components than prior art devices.

An injection device is disclosed for the administration of several medications. The injection device includes a carrying housing, an activation sleeve surrounding the carrying housing, at least two carpules, a first drive module for the administration of the medications, a securing device, a needle arrangement, a needle protection element, and a second triggerable drive module for the needle arrangement. The first drive module includes a drive element with a number of piston rods equal to the number of carpules. At least one of the piston rods is configured in the form of a hollow cylinder the is closed on the piston side, wherein arranged inside this is a first drive means of the first drive module. The first drive means can be arranged in an accommodation part of the drive element, wherein the accommodation part forms with the piston rods a composite structural unit.

Provided is a cassette unit suitable for use with an auto-injector having an electrically powered drive unit. The cassette unit comprises a cassette unit housing defining a cassette unit housing cavity and a needle projection aperture. The housing cavity may receive a syringe. Axially movable within the barrel of the syringe for forward movement into contact with the syringe plunger, there is a plunger slaving part defining a circumferential wall arranged for frictional sliding relationship with the inner wall of the barrel, a rear drive-receiving face and a front plunger-contacting face. The plunger slaving part is arranged such that when a drive load is applied to its rear drive-receiving face to bring the front plunger-contacting face into contact with the plunger the drive load is evenly transmitted. The circumferential wall is provided with slide restrictors that restrict frictional sliding movement thereof in relation to the inner wall of the barrel.

Methods and apparatus for the reproducible, consistent and efficacious delivery of a therapeutic agent to a patient. The invention comprises means for the controlled administration of the therapeutic agent through an orifice to the patient, a plurality of penetrating electrodes arranged with a predetermined spatial relationship relative to the orifice, and means for generating an electrical signal operatively connected to the electrodes.

The present invention provides a drug delivery system (1) comprising a drug delivery device (2, 3) carrying at least one reservoir (40a, 40b), and a needle unit (4) being attachable to the drug delivery device (2, 3) in axial extension thereof and adapted to establish a flow way between the at least one reservoir (40a, 40b) and a drug delivery site. The needle unit (4) comprises a needle structure (11) comprising a front needle portion (12) for entering the drug delivery site, and at least one back needle portion (13a, 13b) for insertion into the at least one reservoir (40a, 40b), and a needle shield (20). The needle shield (20) and the needle structure (11) are capable of undergoing relative axial motion between an accommodating relative position in which the needle structure (11) is completely accommodated within the needle shield (20) and a protruding relative position in which the front needle portion (12) protrudes from the needle shield (20), the needle shield (20) and the needle structure (11) being biased towards the accommodating relative position by a first bias force. When the needle unit (4) is attached to the drug delivery device (2, 3) the needle structure (11) and the at least one reservoir (40a, 40b) are capable of undergoing relative axial motion between a disconnected relative position in which the at least one back needle portion (13a, 13b) is spaced apart from the at least one reservoir (40a, 40b), and a connected relative position in which the at least one back needle portion (13a, 13b) and the at least one reservoir (40a, 40b) are fluidly connected, the needle structure (11) and the at least one reservoir (40a, 40b) being biased towards the disconnected relative position by a second bias force which is greater than the first bias force.

Disclosed is an auto-injector apparatus for receiving a safety syringe, the safety syringe including a sheath deployable on actuation of a plunger to a position at least partially covering a needle of the syringe, wherein the apparatus is configured to allow movement of the sheath to a closed position that substantially covers the needle.

A safety syringe comprising a barrel having an opening at an end thereof and a bung positioned in the barrel and creating a volume between the opening and the bung. The safety syringe also comprises a handle portion secured to the barrel and a syringe plunger slidably engaged with the handle portion and moveable within the barrel on an inward stroke to drive the bung forwards within the barrel to cause a substance within the volume to be expelled from the opening. The safety syringe further comprises a rotation mechanism configured to rotate the syringe plunger within the barrel at a point during the inward stroke when the syringe plunger is in contact with the bung, such that a rotational force is applied to the barrel and a brake connected to the handle portion and configured to provide a frictional force to resist the rotational force applied to the barrel.

The present disclosure relates to an injection device. The injection device comprises a body for holding a syringe that has a needle at one end and a cap that is removably attached to the body. The cap has a needle shield to cover said needle. The injection device further comprises a gear assembly comprising a first rotary gear and a first linear gear to engage with the first rotary gear. The gear assembly is configured such that rotation of the first rotary gear drives the first linear gear to urge the needle shield away from the body. An actuator is provided that is configured to rotate the first rotary gear.