An active self-locking type syringe includes a barrel, needle hub, plunger assembly, plunger protection cover, needle cap, needle tube, needle point protection sleeve, spring, guiding limit assemblies, initial clamping assemblies and a trigger ring plug. In an initial state, the trigger ring plug is located in a trigger cavity and is not in contact with the trigger parts or is in contact with the trigger parts but not enough to separate the initial clamping assemblies, the inner wall of the trigger ring plug and the needle hub are sealed, and the outer wall of the trigger ring plug and the inner wall of the barrel are sealed. In the above structure, the trigger ring plug arranged in the trigger cavity is triggered from the interior of the barrel close to a patient end, and the needle point protection sleeve is released.

A Hypodermic Needle Safety Guard intended for sharps prevention and safer hypodermic needle use during all stages of an injection process. The Safety Guard may include two symmetrically positioned multi-featured arms that include spring tension, multiple hinges and needle locks. These arms may connect a proximal Luer body and a distal alignment tip thereby enabling the guard to open, close and lock on a needle when manual pressure is applied. The Guard position during hypodermic needle use tends to prevent sharps injury by adjusting the exposure of the Needle tip.

The present invention provides a needle tip protector of a novel structure for an indwelling needle, which enables improvements in safety, etc. as compared with conventional needle tip protectors. A needle tip protector 10 for an indwelling needle includes a tubular peripheral wall 58, and is externally attached over a needle hub 22 of an indwelling needle 16 and moved toward a needle tip 14 side so as to cover the needle tip 14. Detents 74, 74, which are to be detained with the needle hub 22 at a position in a movement of the protector toward the needle tip 14 side of the indwelling needle 16 so as to inhibit backward movement of the protector to the proximal end side of the indwelling needle 16 and to prevent the needle tip 14 from being reexposed, are formed within an inside enclosed by the peripheral wall 58, and are integrally molded with the peripheral wall 58.

An autoinjector comprising a body (1) that is adapted to receive a reservoir (S), said reservoir (S) containing fluid and including a piston (P) and a needle (A), such as a pre-filled syringe, said autoinjector further comprising an actuator sleeve (10) that is movable relative to said body (1) between projecting positions in which said actuator sleeve (10) projects out from said body (1) at least in part, and an actuated position in which said actuator sleeve (10) is moved axially into said body (1), said actuator sleeve (10) being in a first projecting position before actuation of the autoinjector, and in a second projecting position after actuation of the autoinjector; said actuator sleeve (10) being urged towards said projecting positions by a spring (9), said autoinjector including a removable cap (20) that is fastened to said body (1) before the autoinjector is used, said removable cap (20), when it is fastened to said body (1), moving said actuator sleeve (10) axially relative to said first projecting position through a distance (d) into said body (1), against the force of said spring (9), such that when said removable cap (20) is removed from said body (1), said spring (9) returns said into said first projecting position.

A needle protection device (10) for protecting a needle has a needle carrier (12) for carrying said needle (14) and being translatable along a longitudinal axis X between a first, deployed, position (D) and a second, protected, position (P); a shuttle (16) surrounding said needle (14); a hub (24) for receiving the needle carrier (12); a sleeve (26) being rotatable around each of said needle carrier (12), said shuttle (16) and said hub (24); a first driving mechanism (30) between said needle carrier (12) and said shuttle (16) to cause axial displacement of said shuttle (16) in a first direction (A) between a first, retracted position R and a second, deployed position Ds upon axial displacement of the needle carrier (12) along axis X; and a second driving mechanism (32) between said needle carrier (12) and said sleeve (26) to cause axial displacement of the carrier (12) in said first direction (A) upon rotational displacement of the sleeve (26).

An injector for delivering medicament includes a first sleeve defining a longitudinal axis, a medicament container, and a locking tab. The medicament container is at least partially disposed within the first sleeve and configured for axial translation with respect to the first sleeve along the longitudinal axis. The medicament container includes a barrel, a needle mounted to a distal end of the barrel, a seal slidably mounted in the barrel, and a plunger rod. The locking tab extends through an aperture in the first sleeve and is in contact with or adjacent to a portion of the medicament container such that the locking tab restricts translation of the barrel with respect to the first sleeve along the longitudinal axis. The locking tab is configured to be movable to a second position in which the locking tab does not restrict translation of the barrel.

A method includes protecting an entire length of a needle of a needle-based device in a first state of disuse thereof with a needle cap, encompassing, by a needle shield, the entire length of the needle and at least a partial length of the needle cap in the first state of disuse, and encompassing an entire protruding length of the needle cap outside the needle shield within a safety cap and securing the safety cap onto an outer surface of the needle shield such that the needle and the needle cap are completely protected and covered during the first state of disuse. Following removing the safety cap along with the needle cap from the needle shield, the method also includes retracting the needle shield to cause the needle to emerge out of the needle shield to prepare the needle-based device for a second state of use thereof.

This invention is a syringe having a tubular sleeve protector. The syringe has a barrel with an injection needle and a guide pin on an exterior surface of the barrel. The barrel and the injection needle are in an interior of a tubular sleeve has a spiral guide track on an interior wall. The guide pin fits in the spiral guide track and moves the barrel towards a bottom end of the tubular sleeve as the barrel is rotated, thereby extending the injection needle out of the tubular sleeve. A lateral guide track connects the spiral guide track to a vertical guide track. The guide pin moves from the bottom of the spiral guide track through the lateral guide track to the vertical guide track when the syringe barrel is further rotated. The injection needle is retracted into the interior of the tubular sleeve when the guide pin is moved into the vertical guide track and moved upwards in the vertical guide track towards a top end of the tubular sleeve.

A method includes protecting an entire length of a needle of a needle-based device protruding from a needle mount coupled to a body thereof based on providing a needle shield configured to completely encompass the entire protruding length of the needle in a first state of disuse of the needle-based device, and retracting the needle shield in a first direction toward the body to cause the needle to emerge out of the needle shield to prepare the needle-based device for a second state of use. The method also includes transitioning the needle-based device back to the first state of disuse in accordance with a force applied in a second direction, securedly maintaining the needle shield in the first state of disuse, and locking the needle shield with a lock button formed on the needle shield or external thereto in the first state of disuse of the needle-based device.

The invention relates to an injection device for injecting a liquid drug. The injection device comprises a housing assembly supporting a non-removable cartridge having an interior chamber containing the liquid drug to be injected and a reusable needle cannula connected to the cartridge. A needle shield assembly provided with a cleaning chamber containing a volume of a cleaning agent for cleaning at least the distal tip of the needle cannula between subsequent injections is further provided. The needle shield assembly is axially movable in a proximal direction in relation to the housing assembly from a first position to a second position upon rotation of at least a part of the needle shield assembly, wherein the first position is a position in which the distal tip of the needle cannula is located inside the cleaning chamber thereby cleansing the distal tip of the needle cannula, and the second position is a position in which the distal tip of the needle cannula is located outside and distal to the cleaning chamber for equalizing the pressure in the cartridge.