A needle protection system, adapted to protect a tip of a hypodermic needle connected or connectable to a syringe. The system comprises a shield to shield the tip of the needle; a needle hub engaged to the hypodermic needle and having an exterior surface including at least one slot. The slot includes at least three surfaces corresponding to three operative orientations of said shield. The needle hub is connected to the shield such that the shield can move axially, but cannot rotate, relative to the needle hub. The three operative orientations include a storage operative orientation, an injection operative orientation, and a needle protection operative orientation. The system also includes a locking sleeve, at least one biasing element, a needle sheath, and at least one tab in the slot to prevent undesired movement between said surfaces.

The invention relates to a safety device for avoiding stabbing injuries, for a syringe having a syringe body and a piercing means arranged on the distal end of said syringe body. The safety device comprises a sleeve element that extends in an axial direction (X) and encloses at least partly the piercing means and the syringe body, and a collar element that is arranged on a distal end region of the syringe body and locks the safety device in the axial direction (X), said collar element having at least one guide projection which is guided in at least one guide track of the sleeve element during a movement of the syringe body relative to the sleeve element substantially in the axial direction. The safety device is characterised in that the collar element is arranged on the distal end region of the syringe body so as to be rotatable in a circumferential direction (U) and has at least one tolerance compensating element which is in operative contact, mechanically, with the syringe body so that tolerances of the syringe body can be compensated for.

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 needlestick prevention device (100) for an injection needle carried by a needle-bearing member (101) of a syringe (102) is formed as a one-piece moulding and comprises a first part (103) adapted to be attached to the needle-bearing member (101) and a second part (104) providing a shield for the needle and pivotally movable relative to the first part to expose the needle for use. The device is adapted to adopt a first position in which the needle is protected for transport of the device prior to use, a second position in which the needle is exposed for filling of the syringe and injection, a third position in which the needle is protected after filling of the syringe but before injection and a fourth position in which the needle is locked in the device following injection. In one embodiment the shield (104) has a transport recess (124) and a locking recess (125) connected by a gate device (126), the arrangement being such that in the third position the needle (130) is in the transport recess (124) and is able to move into the second position, and in the fourth position the needle moves through the gate device (126) into the locking recess (125), with the gate device (126) preventing movement out of the fourth position. The device also includes energy-dissipating bumps (155) operative to reduce the energy of the shield (104) as it is returned to the third position and before the gate device contacts the needle (130) in order to prevent splattering of any liquid on the needle (130) out of the device.

The invention relates to a safety device for a syringe for avoiding stab wounds, said syringe having a syringe body and a piercing means arranged on the distal end of the syringe body. The safety device comprises a sleeve element that extends along an axial direction (X) and at least partially encloses the piercing means and the syringe body, and an inner element which is at least arranged at least in sections inside the sleeve element and surrounds the piercing means. Said safety device is characterised in that the inner element comprises a rim section and a piercing means protection section surrounding the piercing means. Said rim section can be arranged on a distal end of the syringe body, the safety device is secured to the syringe body, and the piercing means protection section can be removed from the rim section before using the syringe.

A needle assembly is disclosed, for use with an injection device. The needle assembly comprises a needle hub (20) having a needle (22) and a needle shield (40) arranged for relative axial movement with respect to the needle hub, between a retracted position in which the tip of the needle projects beyond a forward end of the shield and an extended position in which the tip of the needle does not project beyond the forward end of the shield. The needle shield (40) is axially biased towards the extended position. The needle shield (40) is further arranged to be torsionally biased for relative rotational movement with respect to the needle hub (20).

In one aspect, a safety pen needle assembly is provided herein which includes a hub with a needle fixed to the hub, the needle having a distal end, formed for insertion into a patient, and a proximal end. The assembly further includes a shield and a biasing member disposed between the hub and the shield configured to urge the shield distally. A protrusion extends from at least one of the hub and the shield with a channel being formed in at least the other of the hub and the shield. The channel is formed to accommodate the protrusion. The shield is movable from a first position to a second position. In the first position, the shield is spaced from the distal end of the needle such that the distal end of the needle is exposed. In the second position, the shield covers the distal end of the needle. The channel guides the protrusion as the shield moves from the first position to the second position. With this arrangement, a shield may be directed to move in a desired path with stability. In addition, the distal end of the needle may be initially exposed to permit visual confirmation of priming, while allowing the shield to cover a majority of the needle to minimize any needle-related anxiety.

In one aspect, a safety pen needle assembly is provided herein which includes a hub with a needle fixed to the hub, the needle having a distal end, formed for insertion into a patient, and a proximal end. The assembly further includes a shield and a biasing member disposed between the hub and the shield configured to urge the shield distally. A protrusion extends from at least one of the hub and the shield with a channel being formed in at least the other of the hub and the shield. The channel is formed to accommodate the protrusion. The shield is movable from a first position to a second position. In the first position, the shield is spaced from the distal end of the needle such that the distal end of the needle is exposed. In the second position, the shield covers the distal end of the needle. The channel guides the protrusion as the shield moves from the first position to the second position. With this arrangement, a shield may be directed to move in a desired path with stability. In addition, the distal end of the needle may be initially exposed to permit visual confirmation of priming, while allowing the shield to cover a majority of the needle to minimize any needle-related anxiety.

A syringe member comprising a safety device to prevent pricking injuries; the syringe member comprises a pricking element, and the safety device includes at least one guided pin and a recess which forms a guide slot for guiding the guided pin in a longitudinal direction of the syringe member during movement of the syringe member relative to the safety device; said guide slot includes a first slot region and a second slot region which are separated by a notional separation line extending in a longitudinal direction of the syringe member; the guided pin can be placed in the first slot region in a starting position and can be moved from the first slot region into the second slot region into a final position by having the guided pin cross the separation line when a distal end of the pricking element is located at the level of an exit opening of the safety device.

A syringe assembly includes: a syringe including: a puncture needle having a needle tip, and a barrel holding the puncture needle; a hollow cylindrical grip fitted on an outer peripheral portion of the barrel; and a protective device including a hollow cylindrical cover member that is axially displaceable relative to the barrel, the protective device being configured such that the cover member covers at least part of the puncture needle in an initial state, the cover member is displaceable in a proximal direction relative to the barrel by being pressed against an object to be punctured when the puncture needle is inserted into the object to be punctured, and the cover member is configured to cover the needle tip after insertion of the puncture needle into the object to be punctured.