A puncture set and method to avoid blood loss when emplacing a catheter by a puncture set according to the Seldinger technique, and to enable blood pressure measurement during the puncturing, comprises a puncturing cannula (1) provided with a connecting piece (2) which has a lateral nipple (3) for connection...http://www.google.fr/patents/US4998977?utm_source=gb-gplus-shareBrevet US4998977 - Puncture set for medical use
