发明名称 |
PRE-FILLED RETRACTABLE NEEDLE INJECTION DEVICE |
摘要 |
A safety needle-bearing medical device (10) is provided. After use the needle (50) is retracted into the housing (20) of the device to prevent inadvertent contact with the contaminated needle. The invention provides a syringe having a retractable needle. At the end of the injection stroke, the plunger (30) engages a needle retainer that releasably retains the needle. The needle (50) is then released, and a biasing element (60) biases the needle rearwardly. In a preferred embodiment, the needle retainer comprises an adhesive (65) having sufficient strength to retain the needle (50) against the bias of the biasing element (60) prior to actuation of retraction. In addition, the bond of the adhesive (65) is sufficiently fracturable to allow release of the needle upon application of the actuation forced by the plunger (30).
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申请公布号 |
WO0027450(A1) |
申请公布日期 |
2000.05.18 |
申请号 |
WO1999US26208 |
申请日期 |
1999.11.05 |
申请人 |
MDC INVESTMENT HOLDINGS, INC.;HALSETH, THOR;BOTICH, MICHAEL |
发明人 |
HALSETH, THOR;BOTICH, MICHAEL |
分类号 |
A61M5/315;A61M5/32;(IPC1-7):A61M5/00 |
主分类号 |
A61M5/315 |
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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