A catheter assembly (10) comprises a catheter (22), a needle (12) having a sharp distal tip, a catheter hub (14) housing the catheter (22), the catheter hub (14) having a collar (34) including a notch (36), a needle shield (20) connected to the catheter hub (14) when the needle (12) is in a first position, and a clip (40) disposed in the needle shield (20) that cooperates with the needle (12), wherein the clip (40) engages the catheter hub (14) in the first position of the needle (12), and the clip (40) disengages the catheter hub (14) via the notch (36) when the needle (12) is retracted to a second position to cover at least a portion of the needle (12). The clip (40) is mounted in the outer housing (38) of the needle shield (20) via a spade (66) having an outer wall (70) exposed to the outside of the needle shield (20), in order to reduce the overall width of the needle shield (20).

An auto-injector for administering a dose of a liquid medicament (M) is presented having an elongate case arranged to be held by a user, a tubular chassis telescoped in the case and biased against the case so as to protrude from the case. The injector also includes a syringe with a hollow injection needle, a drive spring and a plunger for forwarding load of the drive spring to a stopper of the syringe. A trigger button is distally arranged in or on the case, wherein the trigger button is initially coupled to the case in a manner to protrude distally from the case and interlocked to the chassis in a manner preventing the trigger button from disengaging the case.

An injection needle assembly (50) for an injection device, comprising: a) a needle cannula (3) attached to a needle hub (4) and defining a pointed tip at a free end (3a, 3b), and b) a needle cover (10, 10a, 10b) forming an axially extending elongated flexible enclosure accommodating the needle cannula (3). The needle cover (10, 10a, 10b) is configured to axially collapse and become penetrated by the needle cannula (3) when a penetration force is applied to the needle cover. The needle cover (10, 10a, 10b) defines a shaft section (11a) and a bulb section (11b). The shaft section (11a) encircles the needle cannula (3) and extends axially from the needle hub (4) to the bulb section (11b). The shaft section (11a) comprises a collapsible wall area (15) having wall thickness t.sub.1 less than a predefined wall thickness t.sub.1,lim to provide radial deformability for abutting contact with the needle cannula (3). The bulb section (11b) comprises a wall area (17a, 17b) having a wall thickness t.sub.2 being greater than said predefined wall thickness t.sub.1,lim, and further defines a central end wall area (20) having a wall thickness t.sub.3 smaller than the wall thickness t.sub.2. In an initial non-penet-rated state, the needle cover (10, 10a, 10b) assumes a first configuration wherein the wall areas of the bulb section (11b) and the wall areas of the shaft section (11a) are spaced apart from the needle cannula (3).

The present invention suppresses the formation of a pocket in a wall of a puncture route when a dull needle is moved forward along the puncture route. In order to achieve such aim, the invention provides a needle to be inserted into a puncture route extending from skin to a blood vessel under the skin to puncture the blood vessel, wherein: the needle is formed in a tubular shape and has an inclined end face at a tip of the needle, the inclined end face being inclined relative to an axis of the needle, a tip end of the inclined end face defining an unsharp edge; the needle has a flexibility of needle elastic modulus nE=1-900 Nmm as defined by an equation to be set forth below; a material of the needle is a resin; and the needle is manufactured by injection molding using a ring-shaped gate.

A syringe holder includes: a barrel body that holds a syringe; a holder opening; deformation promoting portions; and radial movement-restricting portions. The radial movement-restricting portions are provided close to the deformation promoting portions. Being brought into contact with first portions, the radial movement-restricting portions restrict the syringe from moving in a radial direction with respect to the barrel body.

A safety mechanism syringe includes a syringe, a needle, a holder, and a needle cover displaceable relatively with respect to the syringe along an axial direction of the syringe from a use position toward a protection position. The holder includes a locking portion. At least one member of the holder and the needle cover includes a protruding portion that protrudes toward the other member, and the other member includes a restriction portion that abuts on the protruding portion to restrict relative displacement of the needle cover with respect to the syringe along the axial direction of the syringe from the protection position toward the use position.

An autoinjector includes a housing, a product container, a torsion spring, a drive element, and a propulsion element. In order to discharge liquid out of the product container, the torsion spring rotates the drive element, and the rotating drive element produces a propulsive movement of the propulsion element and of a piston in the product container. A rotation sensor is configured for an alternating continuous detection of at least two rotational positions per revolution of the drive element during the discharge process, and a processor unit is configured for determining the axial position of the piston in the product container from the detected rotational positions.

An auto-injector for administering a dose of a liquid medicament (M) is presented having an elongate case, a carrier subassembly comprising a tubular carrier slidably arranged inside the case, where the carrier adapted to contain a syringe with a hollow injection needle. The injector also has, a drive spring and a plunger for forwarding load of the drive spring to a stopper of the syringe, wherein the syringe is lockable for joint axial translation with the carrier. A control spring is arranged around the carrier for translating the carrier in a proximal direction (P) for advancing the needle beyond a proximal end of the auto-injector, and a trigger button is used for releasing the control spring on actuation.

A safety needle device is disclosed having a housing configured to couple to a syringe, the housing having a proximal end, a distal end, and a housing body. A first guide path, a second guide path and a third guide path may be disposed on the housing body. A needle hub is disposed on the proximal end of the housing and a needle cannula is attached to the needle hub. The device having a retractable sheath configured to move between an initial position, a retracted position and an extended position with respect to the housing, wherein the initial position partially exposes a distal tip of the needle cannula, the retracted position fully exposes the needle cannula, and the extended position fully covers the distal tip of the needle cannula. The retractable sheath also may have a guide element. The first, second and third guide paths are configured to slidingly receive the guide element. The device also having a first locking member, a second locking member, a rotating cam disposed in the housing body, and a spring element to bias the retractable sheath to an extended state to cover the distal end of the needle cannula upon completion of an injection.

The invention relates to an autoinjector 59 for administering a fluid medicament to a subject comprising: a housing 1 for receiving a cartridge holder; a driver assembly 8; the driver assembly on actuation may move the cartridge 3 forward in the cartridge holder 2; a needle cover 4 may be coupled to the housing wherein the needle cover 4 travels in a linear or translational movement; said needle cover 4 is adapted to protect a needle when the needle cover may be in first locking position 17 and second locking position 18; the linear or translational movement may be achieved by a cam profile 13 and a cam follower 14; the cam profile 13 may be provided on outside surface of housing and the cam follower 14 located between the needle cover 4 and the housing 1; a first biasing member 15; and a second biasing member 16 configured to bias the cartridge 3 and the needle cover 4 respectively; and a safety cap 11 to control the actuation of the autoinjector. The needle cover 4 further comprises a sleeve 91 or sleeve 92 which prevents or inhibits the obstruction of the movement of needle cover 4 when the user accidentally hold the needle cover 4 during actuation of the autoinjector.