JOSEPH HERMES KAAL,CRAIG STEPHEN THORLEY,DAMIEN JUDD
申请号：
MYPI 20050357
公开号：
MY147055A
申请日:
2005.01.28
申请国别(地区):
MY
年份:
2012
代理人:
摘要：
A RETRACTABLE, SINGLE USE SYRINGE (10) COMPRISES A BARREL (20), A COLLAR (60) MOUNTED TO THE BARREL (20), A RETRACTION SPRING (70), A NEEDLE MOUNT (40) LOCATED AT A NEEDLE END (23) OF THE BARREL (20) AND A PLUNGER (30). THE PLUNGER (30) COMPRISES A FIRST PLUNGER MEMBER (31) AND A SECOND PLUNGER MEMBER (33) THAT ARE RELEASABLY COUPLED TO CO-OPERATIVELY MAINTAIN THE RETRACTION SPRING (70) IN AN INITIAL COMPRESSED STATE. THE SECOND PLUNGER MEMBER (33) FURTHER COMPRISES A SEAL (34) TO PREVENT FLUID LEAKAGE BETWEEN PLUNGER (30) AND BARREL (20). AFTER DEPRESSION OF THE PLUNGER (30) TO DELIVER THE FLUID CONTENTS OF THE SYRINGE (10), THE FIRST PLUNGER MEMBER (31) ENGAGES THE NEEDLE MOUNT (40) WITH NEEDLE (12) ATTACHED THERETO AND IS ROTATABLY UNCOUPLED FROM THE SECOND PLUNGER MEMBER (33) TO ALLOW DECOMPRESSION OF THE RETRACTION SPRING (70), WHICH FORCES RETRACTION OF THE FIRST PLUNGER MEMBER (31), NEEDLE MOUNT (40) AND NEEDLE (12) ENGAGED THEREWITH. THE FIRST PLUNGER MEMBER (31) AND THE COLLAR (60) COMPRISE ELEMENTS THAT CO-OPERATIVELY FORM A DISABLING MEANS THAT PREVENTS OR AT LEAST MINIMIZES THE LIKELIHOOD OF SUBSEQUENT DEPRESSION OR WITHDRAWAL OF THE PLUNGER (30). ALSO FOLLOWING RETRACTION OF THE FIRST PLUNGER MEMBER (31), THE SECOND PLUNGER MEMBER (33) AND SEAL (34) REMAINS AT THE NEEDLE END (23) OF THE BARREL (20) THEREBY PREVENTING REFILLING AND RE-USE OF THE SYRINGE (10).
