A safety syringe comprising a needle redirection device that is desirably configured to bend the needle shaft forwardly of the barrel following an injection to thereby redirect the needle tip from a first position where it projects forwardly in coaxial alignment with the syringe barrel to a second position where the needle tip is covered or protected from incidental or accidental contact and associated needle sticks. Both sliding and pivoting embodiments are disclosed.

Embodiments of the shield assemblies include a shield that is pivotably secured to a needle hub. A ball-and-socket hinge secures the shield and the hub to one another. The assembly includes a reversible shield lock to hold the shield in the needle-protected position. The assembly further includes at least one stop piece to stop the shield from over-rotating.

Devices for protecting a user from a sharp tip of a medical needle includes a central body portion, a medical needle having a sharp tip, a pair of wings in attachment to the central body portion. The medical needle includes a longitudinal axis that is substantially perpendicular to at least one of a long axis of the central body portion and the delivery tube. The pair of wings are selectively positionable in a first position in which the pair of wings are spaced apart from the medical needle and a second position in which the pair of wings are proximate the medical needle. A mechanical fastener is disposed on at least one of the pair of wings, the mechanical fastener configured to selectively attach the pair of wings together in the second position with the medical needle positioned therebetween. Methods of using the device including administering medicinal fluids.

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 present invention relates to a safety device (100) for preventing needlestick injury with a needle (20), comprising: a protective cap (130) and a shield (120) capable of pivoting from a storage position where it is interlocked with the protective cap (130), a retracted position where it gives access to the needle (20) and a safety position where it covers the needle (20), wherein a cam surface (127) of the shield and an engaging peg (137) of the protective cap are arranged so that, when the safety device (100) is mounted around the tip (14) of a medical device (10), removing the protective cap (130) from the tip (14) by a distal movement displaces the shield (120) from the storage position to the retracted position. Furthermore, the present invention relates to a medical device (10) comprising a tip (14) provided with a needle (20) comprising a needle point (22), wherein the medical device (10) further comprises a safety device (100).

An arterial syringe assembly is disclosed. The assembly includes a housing with a proximal end that may couple with a syringe barrel and a distal end that may couple with a needle. A needle cover is coupled with the housing at a hinge that may rotate to position the needle cover relative to the needle and may rotate to an orientation aligned with the needle such that the needle is within the needle cover. A needle plug is coupled to the needle cover at a distal end of the needle cover and may include plug material. The needle plug may slide axially relative to the needle to advance the needle plug at a distal end of the needle. A hydrophobic filter is positioned within the syringe barrel to evacuate air through a proximal end of the syringe barrel after the needle tip extends within the plug material.

Devices for protecting a user from a sharp tip of a medical needle includes a central body portion, a medical needle having a sharp tip, a pair of wings in attachment to the central body portion. The medical needle includes a longitudinal axis that is substantially perpendicular to at least one of a long axis of the central body portion and the delivery tube. The pair of wings are selectively positionable in a first position in which the pair of wings are spaced apart from the medical needle and a second position in which the pair of wings are proximate the medical needle. A mechanical fastener is disposed on at least one of the pair of wings, the mechanical fastener configured to selectively attach the pair of wings together in the second position with the medical needle positioned therebetween. Methods of using the device including administering medicinal fluids.

The present invention relates to a drug delivery device comprising a drug container having at least one bellow. The at least one bellow has a first surface and an opposing second surface. The first surface is comprised of a first Belleville spring and the opposing second surface is comprised of a second Belleville spring, wherein the second Belleville spring has a higher spring rate than the first Belleville spring.

A needle protection device and a safety needle assembly are described. The needle protection device comprises a connecting portion and a protection arm rotatable relative to the connecting portion. A pair of holding members are respectively formed on a proximal end portion of the protection arm and the connecting portion and configured to engage with each other in an unretreatable manner. A pair of positioning arms are respectively formed on the proximal end portion of the protection arm and the connecting portion and formed with at least one pair of complementary snap-fitting features. The paired snap-fitting features are configured to engage each other in a separable manner. The needle protection device and the safety needle assembly not only reliably prevents medical instruments from incurring accidental needle-sticks after use and ensures such medical instruments disposable, but also exhibits a simple structure and low costs.

The invention relates to a pre-filled injection device for apportioning a plurality of set doses of a liquid drug comprising. The housing of the injection device supports a non-replaceable cartridge containing the liquid drug. The cartridge is e.g. secured in a cartridge-holder being a part of the housing. A needle assembly comprising a needle cannula secured in a hub is slidable mounted to slide into contact with the cartridge. The tip of the needle cannula is covered by a telescopically movable shield movable from an extended position to a retracted position. The telescopically movable shield supports a cleaning chamber containing a cleaning solvent for cleaning at least the distal tip of the needle cannula between subsequent injections. The distal end of the housing supports a removable protective cap and the telescopically movable shield is guided relatively to the housing and coupled to the protective cap to follow movement of the protective cap.