Patent ID: 6113555
Filing Date: 2000-09-05
Classification: A61B,A61M,F16K

Abstract:
A device for withdrawing and transferring body liquids which comprises a protection cap defining a concavity, and a thin sharp-ended tubular stem joined to the cap and projecting into said concavity, the tubular stem being connected, by an elastically flexible tube external to the cap, to means for penetrating the human body or body liquid containers, the device being suitable for use in combination with sample tubes to be inserted into the concavity in the cap and having an interior chamber under vacuum and closed by a yieldable elastomeric plug able to seal an aperture produced by the tubular stem, the device further comprising a clamping means projecting upwardly from the upper end of the protection cap and operated manually to close and open the passageway through the tube,such clamping means comprising a rigid first projecting element, projecting from the upper surface of the cap and having for the tube a bearing region placed against the tube, anda second element bendable on itself, having an upper portion thereof normally tending to return upwards, and having, opposite the first element, a pressing end which when the upper portion is left free to move upwards, presses and squeezes the tube against the bearing region of the first element to close its passage, the downward rotation of the upper portion of the second element causing said pressing end to withdraw from the bearing region.