发明授权
US5360211A Springs and locking collars for retractable sleeve-protected injection
apparatus
失效
用于可伸缩套筒保护的注射装置的弹簧和锁定套环
- 专利标题: Springs and locking collars for retractable sleeve-protected injection apparatus
- 专利标题(中): 用于可伸缩套筒保护的注射装置的弹簧和锁定套环
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申请号: US110889申请日: 1993-08-24
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公开(公告)号: US5360211A公开(公告)日: 1994-11-01
- 发明人: Craig W. Smith , Randall E. Ohnemus
- 申请人: Craig W. Smith , Randall E. Ohnemus
- 申请人地址: CA Ventura
- 专利权人: InjectiMed, Inc.
- 当前专利权人: InjectiMed, Inc.
- 当前专利权人地址: CA Ventura
- 主分类号: A61M5/32
- IPC分类号: A61M5/32 ; F16F1/06
摘要:
This is an all-plastic protective sleeve for the needle of a medical device. It comprises, a plastic base carrying a bottom end of the needle; a plastic end-cap slidably mounted on the needle adjacent a tip end thereof; a plurality of longitudinal plastic slats extending from the base to the end-cap; a cylindrical plastic locking collar disposed over the plurality of longitudinal slats adjacent the end-cap; and, a plastic spring disposed over the plurality of longitudinal slats between the base and the end-cap. The spring is a unitary plastic helical compression spring comprising a cylindrical collar portion disposed over a center portion of the plurality of longitudinal slats with first and second portions of helical compression spring turns extending therefrom toward the base and the locking collar, respectively. The locking collar has an outside diameter larger than the outside diameter of the spring and is of a thickness sufficient to produce a textured grippable area at the periphery thereof.
公开/授权文献
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