Abstract: A blood sampling device designed to divert attention from the pain involved in the puncture of the skin tissue by increasing comfort when lancing the skin by affecting the sensation and perception of pain. Projections on the distal end of a skin pricker contact the skin surface to confuse the nerves in the area of the prick to make the prick less noticeable.

Abstract: A blood sampling device designed to divert attention from the pain involved in the puncture of the skin tissue by increasing comfort when lancing the skin by affecting the sensation and perception of pain. Projections on the distal end of a skin pricker contact the skin surface to confuse the nerves in the area of the prick to make the prick less noticeable.

Abstract: A blood sampling device designed to divert attention from the pain involved in the puncture of the skin tissue by increasing comfort when lancing the skin by affecting the sensation and perception of pain. Projections on the distal end of a skin pricker contact the skin surface to confuse the nerves in the area of the prick to make the prick less noticeable.

Abstract: A skin pricker has a barrel (1,11) in which a hammer (2,29) released by a trigger mechanism (32,34) can be shot forwards by a compressed spring (3,38) to impact on a lancet (24) and momentarily project its tip. The rear end of the spring acts against a barrier (4,39) adjustable axially of the barrel, so that the spring can be more or less compressed before release, causing the hammer to act with greater or lesser force on the lancet. The barrier (4,39) may have projections (6,8,42) that engage in skew slots (7,9,43) in the barrel, so that rotation of the barrier axially adjusts it. A sleeve (44) over the rear part of the barrel instrumental in priming the device may co-operate with the projections and be rotatable to set the desired spring force.

Abstract: A blood sampling device designed to divert attention from the pain involved in the puncture of the skin tissue by increasing comfort when lancing the skin by affecting the sensation and perception of pain. Projections on the distal end of a skin pricker contact the skin surface to confuse the nerves in the area of the prick to make the prick less noticeable.

Abstract: A skin pricker has a barrel (1,11) in which a hammer (2,29) released by a trigger mechanism (32,34) can be shot forwards by a compressed spring (3,38) to impact on a lancet (24) and momentarily project its tip. The rear end of the spring acts against a barrier (4,39) adjustable axially of the barrel, so that the spring can be more or less compressed before release, causing the hammer to act with greater or lesser force on the lancet. The barrier (4,39) may have projections (6,8,42) that engage in skew slots (7,9,43) in the barrel, so that rotation of the barrier axially adjusts it. A sleeve (44) over the rear part of the barrel instrumental in priming the device may co-operate with the projections and be rotatable to set the desired spring force.

Abstract: A skin pricker has a barrel (1,11) in which a hammer (2,29) released by a trigger mechanism (32,34) can be shot forwards by a compressed spring (3,38) to impact on a lancet (24) and momentarily project its tip. The rear end of the spring acts against a barrier (4,39) adjustable axially of the barrel, so that the spring can be more or less compressed before release, causing the hammer to act with greater or lesser force on the lancet. The barrier (4,39) may have projections (6,8,42) that engage in skew slots (7,9,43) in the barrel, so that rotation of the barrier axially adjusts it. A sleeve (44) over the rear part of the barrel instrumental in priming the device may co-operate with the projections and be rotatable to set the desired spring force.

Abstract: A firing device has a housing (10, 20) for an injector (1) with a trigger (4) whose action to eject a dose from its needle (2) is forwards against a resistance. The housing contains a spring (24) which acts on an axially movable locator (23) for the injector (1) that co-operates with its trigger (4). The device is primed by compressing the spring (24), the injector then being latched in a rearward position. Release of the catch (28) causes the spring (24) first to propel the injector (1) forwards, acting through the locator (23) and trigger (4), until the needle (2) is projected, and then to overcome the resistance to the trigger (4) to actuate that and cause a dose to be ejected.

Abstract: A blood sampling device designed to divert attention from the pain involved in the puncture of the skin tissue by increasing comfort when lancing the skin by affecting the sensation and perception of pain. Projections on the distal end of a skin pricker contact the skin surface to confuse the nerves in the area of the prick to make the prick less noticeable.

Abstract: A syringe holder has a barrel (1) with a sleeve (2) screwed over its forward end. A syringe is entered into the rear end of the barrel (1), needle (20) first, with the sleeve (2) at its rearmost position. A coned needle cap (23) snaps through an aperture (13) at the forward end of the sleeve as a flange (18) at the rear of the syringe tube (17) abuts the rear end of the barrel (1). Screwing the sleeve (2) forwards eases the cap (23) off the needle (20), and screwing it back again leaves the assembly ready to use. The barrel (1) has finger grips (10) to facilitate thumb operation of the syringe plunger.

Abstract: An injection device has a drive spring which, when released, urges a loaded capsule forwards to project its needle from the end of a barrel and ejects the dose. A light return spring then retracts the needle. The drive spring acts on the capsule plunger through a drive member having a movable barrier against which the rear end of the plunger initially abuts. A first trigger releases the drive member and drive spring and after an injection a second trigger can be actuated to shift the barrier relative to the drive member and allow the return spring to act.

Abstract: After removal of a protective cap, the forward end of a barrel (1) of a skin pricker is placed against the skin and the user presses the projecting end of a trigger (6) forwards. As the trigger pivots about a fulcrum (9) of the barrel (1), a thin bridge onto a lancet (2) shears. The lancet is released, and shoots forward as a spring (3) extends, thus projecting a needle tip (4) to prick the skin. This projection is only momentary and the lancet (2), which is captive to the spring (3), is pulled back as the spring (3) reverts to a recovery position where the needle tip is safe inside the barrel. The trigger (6), although broken away from the lancet, remains captive to the barrel by the enlargement (11). The lancet cannot again be operated to eject the needle and the pricker is then intended to be discarded.