发明名称 |
Catheter-advancement actuated needle retraction system |
摘要 |
A catheter-advancement actuated needle retraction system is disclosed herein. The invention includes a generally hollow barrel that houses a needle hub, which can include a flashback chamber. A needle is affixed to the distal end of the needle hub and is aligned to extend through an opening in the distal end of the barrel. The needle extends through a catheter hub and catheter affixed to the catheter hub. A spring is disposed in the barrel lumen to cooperate with the needle hub to urge the needle hub toward the proximal end of the barrel. A latch actuator is releasably engaged with the catheter hub. A latch which cooperates with the latch actuator is movable between one position which maintains the needle hub adjacent to the distal end of the barrel and a second position allowing the spring to urge the needle hub to the proximal end of the barrel. A mechanism may be provided to cushion the needle hub as it contacts the proximal end of the barrel by the force of the spring.
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申请公布号 |
US5795339(A) |
申请公布日期 |
1998.08.18 |
申请号 |
US19960736618 |
申请日期 |
1996.10.24 |
申请人 |
BECTON DICKINSON AND COMPANY |
发明人 |
ERSKINE, TIMOTHY J. |
分类号 |
A61M25/06;(IPC1-7):A61M5/00 |
主分类号 |
A61M25/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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