Abstract: This invention relates to a safety needle accessory sealed within a pack suitable for sealing pre-filled syringes. The safety needle accessory comprises a hub for surrounding a hollow needle having a tip and having a connector for attachment to a syringe, a slidable sleeve adapted to slide over the needle in a first longitudinal direction from a first position in which the needle is fully or partially covered by the sleeve to a second position in which the needle is exposed, and in a second longitudinal direction from the second position to a third position in which the needle is fully covered by the sleeve, and a pack surrounding the hollow needle, hub and slidable sleeve having a closed end covering the needle and an open end exposing the connector of the hub. The safety needle accessory further comprises a first seal attached to the connector of the hub and a second seal between the hub and the pack.

Abstract: A safety needle accessory is provided for the prevention of needle stick injuries. The safety needle accessory includes a hollow needle, a hub surrounding a base of the hollow needle, a sleeve surrounding the hub, and a elastically deformable member. The sleeve is slidable to a first, a second and a third position in which the sleeve fully or partially covers the needle. In addition, the safety needle accessory includes a pack having a removable cap. The cap is removable from the pack while a remainder of the pack remains mounted over the needle, hub and sleeve. The cap is removed from the pack at a position such that removal of the cap exposes a sharp end of the needle, but not the sleeve, when the sleeve is in the intermediate position.

Abstract: A safety needle for automatically covering a tip of a needle following removal of the needle from a patient is provided. The safety needle includes an injection device and a packing sleeve. The injection device has an initial position and an intermediate position. The packing sleeve has a generally hollow body surrounding at least a portion of the injection device in the initial position and the intermediate position. The hollow body includes at least one track having an activation leg and a releasing leg. The at least one track is configured to slidingly engage with at least one member of the injection device to move the injection device to the intermediate position. The packing sleeve is removable from the injection device only when the injection device is in the intermediate position.

Abstract: A packing sleeve for use with a safety needle that automatically covers a tip of a needle following removal of the needle from a patient includes a generally hollow body having a longitudinal axis and a distal end and an open proximal end. The body surrounds at least a portion of the safety needle and has at least one track having an activation leg and a releasing leg. The at least one track is in sliding engagement with at least one member of the safety needle such that the motion of a portion of the safety needle relative to the body is dictated by a path the at least one member follows along the respective at least one track. The safety needle is in an initial position when the at least one member is proximate a first end of the activation leg and in an intermediate position when the at least one member is proximate a second end of the activation leg.

Abstract: A safety needle accessory includes a hub (6) having a connector (2) for surrounding a hollow needle. The hub has a first seal (10) that engages sealingly with the connector. A slidable sleeve (8) slides over the needle in a first longitudinal direction from a first position in which the needle is fully or partially covered by the sleeve to a second position in which the needle is exposed to a third position in the second direction in which the needle is fully covered by the sleeve. A pack (9) having a closed end surrounds the hollow needle, hub and slidable sleeve. The pack has a first section which abuts the hub or the first seal to form a second seal and the pack has a second section which engages the needle tip to form a third seal (12) between the closed end of the pack and a needle tip.

Abstract: This invention relates to an accessory for attaching to a needle to prevent needle stick injuries. The safety needle accessory is suitable for use with a hollow needle and comprises a needle hub surrounding the needle and a slidable sleeve slidably mounted on the needle hub. The slidable sleeve bears resiliently on the needle hub such that, in use, as the slidable sleeve is caused to move into a retracted position. A restoring force is generated within the slidable sleeve and on removal of the needle from the patient the restoring force causes the slidable sleeve to move into an extended position covering the needle tip. The safety needle locks in this position after removal of the needle from the patient.

Abstract: A safety needle pack to prevent needle stick injuries includes a hollow needle, a needle hub, a slidable sleeve mounted on the needle hub and a pack surrounding the needle, hub and sleeve. The slidable sleeve is adapted to slide between an extended position in which the injection end of the needle is located inside the slidable sleeve and a retracted position in which the injection end of the needle projects from the slidable sleeve. The pack is releasably mounted on the needle hub and slidable sleeve such that the injection end of the pack covers the tip of needle.

Abstract: A safety needle for automatically covering a needle tip following removal of the needle from a patient includes a hub mounted to the needle. A slidable sleeve is slidably mounted to the hub and has an extended position in which a tip of the needle is located inside the slidable sleeve and a retracted position in which the tip of the needle projects from the slidable sleeve. An outer surface of the hub deflects the slidable sleeve in a radial direction as the slidable sleeve slides in an axial direction toward a receiving end of the hub. A spring member is mounted to the slidable sleeve proximate the mounting end. A displacement force urges the slidable sleeve toward the retracted position and generates a restoring force within the spring member. The restoring force urges the slidable sleeve to move toward the injection end of the needle hub and into the extended position upon removal of the displacement force.

Abstract: A safety needle accessory includes a hub (6) having a connector (2) for surrounding a hollow needle. The hub has a first seal (10) that engages sealingly with the connector. A slidable sleeve (8) slides over the needle in a first longitudinal direction from a first position in which the needle is fully or partially covered by the sleeve to a second position in which the needle is exposed to a third position in the second direction in which the needle is fully covered by the sleeve. A pack (9) having a closed end surrounds the hollow needle, hub and slidable sleeve. The pack has a first section which abuts the hub or the first seal to form a second seal and the pack has a second section which engages the needle tip to form a third seal (12) between the closed end of the pack and a needle tip.

Abstract: A packing sleeve for use with a safety needle that automatically covers a tip of a needle following removal of the needle from a patient includes a generally hollow body having a longitudinal axis and a distal end and an open proximal end. The body surrounds at least a portion of the safety needle and has at least one track having an activation leg and a releasing leg. The at least one track is in sliding engagement with at least one member of the safety needle such that the motion of a portion of the safety needle relative to the body is dictated by a path the at least one member follows along the respective at least one track. The safety needle is in an initial position when the at least one member is proximate a first end of the activation leg and in an intermediate position when the at least one member is proximate a second end of the activation leg.

Abstract: A packing sleeve for use with a safety needle that automatically covers a tip of a needle following removal of the needle from a patient includes a generally hollow body having a longitudinal axis and a distal end and an open proximal end. The body surrounds at least a portion of the safety needle and has at least one track having an activation leg and a releasing leg. The at least one track is in sliding engagement with at least one member of the safety needle such that the motion of a portion of the safety needle relative to the body is dictated by a path the at least one member follows along the respective at least one track. The safety needle is in an initial position when the at least one member is proximate a first end of the activation leg and in an intermediate position when the at least one member is proximate a second end of the activation leg.

Abstract: This invention relates to a safety needle to prevent needle stick injuries. The invention provides a safety needle accessory comprising a hollow needle having a base end and a sharp end, a hub surrounding the base end of the needle and having a connector for connection to an injection device, a sleeve surrounding the hub and slidable relative to the hub in an axial direction, an elastically deformable member, and a pack having a closed end covering the sharp end of the needle and an open end exposing the connector of the hub and which is releasably mounted over the needle, hub and sleeve.

Abstract: This invention relates to a safety needle pack to prevent needle stick injuries. The safety needle pack comprises a hollow needle, a needle hub surrounding the hollow needle, a slidable sleeve slidably mounted on the needle hub and a pack surrounding the needle, hub and sleeve. The slidable sleeve is adapted to slide between an extended position in which the injection end of the needle is located inside the slidable sleeve and a retracted position in which the injection end of the needle projects from the slidable sleeve, via an intermediate position between the extended position and the retracted position in which the injection end of the needle projects partially from the slidable sleeve. The pack is releasably mounted on the needle hub and slidable sleeve such that the injection end of the pack covers the tip of needle. By causing the pack to be moved towards the syringe, the pack retracts the slidable sleeve from the extended position to the intermediate position.

Abstract: This invention relates to a safety needle accessory sealed within a pack suitable for sealing pre-filled syringes. The safety needle accessory comprises a hub for surrounding a hollow needle having a tip and having a connector for attachment to a syringe, a slidable sleeve adapted to slide over the needle in a first longitudinal direction from a first position in which the needle is fully or partially covered by the sleeve to a second position in which the needle is exposed, and in a second longitudinal direction from the second position to a third position in which the needle is fully covered by the sleeve, and a pack surrounding the hollow needle, hub and slidable sleeve having a closed end covering the needle and an open end exposing the connector of the hub. The safety needle accessory further comprises a first seal attached to the connector of the hub and a second seal between the hub and the pack.

Abstract: A needle-less injector comprises a cartridge (3) prefilled with liquid ((9), which cartridge contains a free sliding piston (32) and an injection orifice (10). A ram (22) is urged by a pre-loaded spring (24) for striking the said piston to cause the injections. Adjusting means (6) can be provided to vary the volume injected. A trigger device (26, 30) initiates injection only when the optimum contact pressure is reached between the discharge orifice (1) and epidermis of the subject. The initial loading of the power spring (24) is sufficient to dispense all of the contents of the medicament cartridge in one dose or multiple sequential doses. Disposable and reusable embodiments are described.

Abstract: A needleless injector cartridge has an adaptor for introducing fluid from a filling device into an orifice of the cartridge. The adaptor has a frangible connection which is broken to allow removal of the filling device after the cartridge is filled with the fluid.

Abstract: A needleless injector cartridge, comprises an injection component (1) defining a void (17) therein for receiving medicament, and having an injection discharge orifice communicating with the void. The cartridge further comprises a transfer device (2) comprising a liquid-containing reservoir (4), and transfer means for causing the liquid (5) to flow from the reservoir, through a reservoir outlet, into the void in the injection component.

Abstract: A pressurised gas powered actuator comprising a piston (3) operating in a cylinder (1). The stroke of the piston (3) may be reduced by uncovering one or more holes (14, 20) in the cylinder wall to permit the escape of the pressurised gas at a predetermined position along the swept wall of the cylinder. Alternatively, the piston (401) may be connected to a rod (402) which has a gas vent (406) formed therein, the position of the rod (402) with respect to the piston (401) being variable to adjust the stroke of the piston (401).

Abstract: A needleless injector drug capsule assembly comprising a container, a housing therefor, a piston, and resilient seals to permit filling and sealing thereafter to maintain sterility of the contents. A seal carrier holds a seal through which filling of the capsule is carried out via its outlet orifice, and after filling the seal carrier is closed off, for example by a plug or by heat sealing.

Abstract: A needleless injector drug capsule assembly comprising a container, a housing therefor, a piston, and resilient seals to permit filling and sealing thereafter to maintain sterility of the contents. A seal carrier holds a seal through which filling of the capsule is carried out via its outlet orifice, and after filling the seal carrier is closed off, for example by a plug or by heat sealing.