发明名称 |
SYRINGE SPRING RETAINER |
摘要 |
A spring retainer (60) is provided for a syringe (10) that comprises a barrel (40), a plunger (20), a spring (90) and a retractable needle (50) that can couple with the plunger (20) for spring-driven retraction of the coupled needle (51) and plunger (20). The spring retainer (60) has first (70) and second (80) body members that co-operate to releasably maintain the spring (90) in a compressed state until the plunger (20) is coupled to the retractable needle (50) after depression of the plunger (20) to deliver the fluid contents of the syringe (10). Depression of the plunger (20) triggers rotational disengagement of the first (70) and second (80) body members to allow decompression of the spring (90) which forces retraction of the retractable needle (50) into the barrel (40). Rotational disengagement of the first (70) and second (80) body members also assists rotation of the plunger (20) into a final, inoperable position. |
申请公布号 |
EP2596824(A1) |
申请公布日期 |
2013.05.29 |
申请号 |
EP20130156459 |
申请日期 |
2004.03.19 |
申请人 |
UNITRACT SYRINGE PTY LTD |
发明人 |
KAAL, JOSEPH, HERMES;THORLEY, CRAIG, STEPHEN |
分类号 |
A61M5/315;A61M5/32;A61M5/50 |
主分类号 |
A61M5/315 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|