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1. 发明授权

US07374560B2 Emboli protection devices and related methods of use 有权
标题翻译： Emboli保护装置及相关使用方法
公开(公告)号：US07374560B2
公开(公告)日：2008-05-20
申请号：US09940986
申请日：2001-08-29
申请人： Thomas V Ressemann , Steven S Hackett , Andrew J Dusbabek , Scott A Olson , Peter T Keith , Dennis W Wahr
发明人： Thomas V Ressemann , Steven S Hackett , Andrew J Dusbabek , Scott A Olson , Peter T Keith , Dennis W Wahr
IPC分类号： A61M31/00
CPC分类号： A61B17/12045 , A61B17/12109 , A61B17/12136 , A61B17/22 , A61B90/39 , A61B2017/12127 , A61B2017/22067 , A61B2017/22079 , A61B2017/22082 , A61B2017/22084 , A61B2217/005 , A61B2217/007 , A61F2/95
摘要： An evacuation sheath assembly and method of treating occluded vessels which reduces the risk of distal embolization during vascular interventions is provided. The evacuation sheath assembly includes an elongated tube defining an evacuation lumen having proximal and distal ends. A proximal sealing surface is provided on a proximal portion of the tube and is configured to form a seal with a lumen of a guided catheter. A distal sealing surface is provided on a distal portion of the tube and is configured to form a seal with a blood vessel. Obturator assemblies and infusion catheter assemblies are provided to be used with the evacuation sheath assembly. A method of treatment of a blood vessel using the evacuation sheath assembly includes advancing the evacuation sheath assembly into the blood vessel through a guide catheter. Normal antegrade blood flow in the blood vessel proximate to the stenosis is stopped and the stenosis is treated. Retrograde blood flow is induced within the blood vessel to carry embolic material dislodged during treating into the evacuation sheath assembly. If necessary to increase retrograde flow, the coronary sinus may be at least partially occluded. Alternatively, antegrade flow may be permitted while flow is occluded at the treatment site.
摘要翻译：提供疏散鞘组件和治疗闭塞血管的方法，其减少血管干预期间远端栓塞的风险。抽真空组件包括限定具有近端和远端的抽空腔的细长管。近侧密封表面设置在管的近端部分上，并被构造成与引导导管的内腔形成密封。远端密封表面设置在管的远端部分上并构造成与血管形成密封。提供闭塞器组件和输注导管组件以与抽真空组件一起使用。使用排气鞘组件治疗血管的方法包括通过引导导管将排空鞘组件推进到血管中。停止接近狭窄的血管中的正常顺行血流，并治疗狭窄。在血管内引起逆行血流，以便在处理进入抽真空鞘组件期间将栓塞物移走。如果需要增加逆行流量，冠状窦可能至少部分闭塞。或者，可以允许在治疗部位闭塞流动时顺行流动。

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