发明申请
- 专利标题: IMPROVED TRANSSEPTAL CROSSING NEEDLE DEVICE
- 专利标题(中): 改进的交叉穿孔针装置
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申请号: US15030437申请日: 2014-10-24
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公开(公告)号: US20160242813A1公开(公告)日: 2016-08-25
- 发明人: William Cannon , Brendan Marrinan , Liam Farrissey , Bernard McDermott , Richard Gribbons
- 申请人: CREGANNA-TACTX MEDICAL
- 国际申请: PCT/US14/62252 WO 20141024
- 主分类号: A61B17/34
- IPC分类号: A61B17/34
摘要:
In a transseptal crossing needle device for inserting an outer sheath through a septum, an inner dilator sheath is received within the outer sheath and a needle having a curved end portion adjacent a tip of a tip portion of the needle is provided, the needle being received in the inner dilator sheath. The needle tip portion comprises an angled transverse end surface terminating at said tip and slanting away from an inner concave curved wall of said inner sheath curved by the needle curved end portion, the needle tip being spaced not only away from said inner concave curved wall of said inner sheath but also away from an inner convex curved wall of said inner sheath opposite said concave wall to reduce or eliminate skiving of material from the concave and convex inner walls of the inner sheath.
公开/授权文献
- US10327811B2 Transseptal crossing needle device 公开/授权日:2019-06-25
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