A safety needle device is disclosed having a hub, needle cannula, housing, tether, retractable sleeve, locking member and spring element. The tether is movably disposed in the housing, the tether having a slot with an enlarged first guide path and a narrowed second guide path extending distally from the enlarged first guide path. The retractable sleeve is configured to move from an initial position to partially expose a distal tip of the needle cannula, a retracted position to fully exposes the needle cannula, and an extended position to fully cover the distal tip of the needle cannula. The proximal movement of one or more protrusions on the retractable sleeve, rotates the tether to move the at least one or more protrusions from the enlarged first guide path of the tether to the narrowed second guide path of the tether, this rotation activating the device.

A safety needle device is disclosed having a hub, needle cannula, housing, tether, retractable sleeve, locking member and spring element. The tether is movably disposed in the housing, the tether having a slot with an enlarged first guide path and a narrowed second guide path extending distally from the enlarged first guide path. The retractable sleeve is configured to move from an initial position to partially expose a distal tip of the needle cannula, a retracted position to fully exposes the needle cannula, and an extended position to fully cover the distal tip of the needle cannula. The proximal movement of one or more protrusions on the retractable sleeve, rotates the tether to move the at least one or more protrusions from the enlarged first guide path of the tether to the narrowed second guide path of the tether, this rotation activating the device.

A safety needle has a needle base, a puncture needle, and a safety cap. The puncture needle is inserted into a front end of a needle connection segment of the needle base. The safety cap is combined with a front end of the needle base. The safety cap has a needle cap and a resilient member mounted in the needle base. The needle cap is mounted around the puncture needle. Guiding blocks formed on the rear end of the needle cap are mounted respectively in positioning recesses in a housing of the needle base. The needle cap and an outer cap are mounted around the puncture needle, and the puncture needle can be kept from exposure. The needle cap can be locked with the positioning recesses, and the safety needle cannot be reused and can be distinguished as a used needle.

This passive safety device (1) comprises an inner needle shield (4) having a proximal end (40) configured to be sealed to a tip (102) of an injection device (100), a distal portion (42) configured to be pricked by a needle (108) in a pre-use position and pierced by the needle (108) in an injection position, and an energy storage portion (44) configured to accumulate energy as the passive safety device (1) passes from the pre-use position to the injection position and release energy as the passive safety device (1) passes from the injection position to a safety position. The passive safety device (1) further comprises a sleeve (2) surrounding the proximal end (40), an outer needle shield (6) having a proximal end (62) slidably attached to the sleeve (2) so that the outer needle shield (6) is movable relative to the sleeve (2), and a lock configured to lock the outer needle shield (6) in the safety position. The inner needle shield (4) is configured to move the outer needle shield (6) distally as the energy storage portion (44) releases its stored energy.

A flexible collar including a rigid body having a cylindrical outer surface and a cylindrical inner surface concentrically aligned with respect to a common longitudinal axis, a top surface, and a bottom surface, the inner surface defining a bore from the top surface to the bottom surface, and each of the top and bottom surfaces having an endless pathway confined to a respective plane and circumscribing a respective edge of the inner surface. The flexible collar further includes at least one accordion region having a plurality of pivots, at least two of the pivots being radially spaced apart from the longitudinal axis at different distances, and the accordion region being configured to radially deform.

A needle cover assembly can be used with a medicament delivery device, wherein said needle cover assembly is disposable and comprises a retainer element connectable to a medicament container holder; a hub having a longitudinal axis and comprising a double pointed injection needle with a proximal needle end and a distal needle end, wherein the proximal needle end projects a distance from the hub along the longitudinal axis, and a shield covering at least the proximal needle end and a portion of the hub. Said shield comprises a detachable element, that the shield is attached to the hub when said detachable element is attached to the shield, corresponding to an untampered state, and that the shield is released and is telescopically movable in relation to the hub along the longitudinal axis when said detachable element is detached from the shield corresponding to an activated state.

A needle safety system for a syringe having a generally cylindrical barrel extending along a longitudinal axis, the barrel having a hub from which a needle extends distally. The needle safety device has a sleeve at least partially enclosing the needle. A guide track is formed in the sleeve. A multi-part collar disposed in the sleeve has an inner collar which is fixedly connectable to the hub of a syringe barrel. An outer collar is rotatably attached to the inner collar. A guide pin extending radially outwardly from the outer collar slideably engages the guide track. A torqueable compression spring extending between the outer collar and the sleeve biases the sleeve in a distal direction and also biases the outer collar in rotation relative to the sleeve.

The invention relates to a safety device, for avoiding stab wounds, for a syringe with a syringe body and with a puncturing means arranged at the distal end of the syringe body, said safety device comprising a sleeve element which extends along an axial direction (X) and at least partially encloses the puncturing means and the syringe body, wherein the sleeve element comprises, at its distal end, a contact portion which at least partially contacts the skin of a patient during use of the syringe and which delimits an opening surface. The safety device is characterized in that the opening surface has at least in part a sub-area that encloses an angle with the axial direction (X), wherein the angle is in a range of between 10 and 80.

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.

A needle assembly is disclosed, which includes a needle protection member and a rotor. The rotor has a rotor body and a restriction portion. When the needle protection member in the initial state is displaced from the protection position to a use position and returns to a protection position, the restriction portion is displaced from the initial position to the lock position by the rotation of the rotor body with respect to the needle protection member. A needle hub has a displacement prevention portion that prevents the needle protection member from being displaced from the protection position to the use position again by contacting the restriction portion at the lock position.