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    • 7. 发明申请
    • Embolic protection devices
    • 栓塞保护装置
    • US20070167975A1
    • 2007-07-19
    • US11651667
    • 2007-01-10
    • William BoyleDavid BurkettAndy DenisonBenjamin HuterScott HuterArkady KokishKent StalkerChicheng WangJohn Whitfield
    • William BoyleDavid BurkettAndy DenisonBenjamin HuterScott HuterArkady KokishKent StalkerChicheng WangJohn Whitfield
    • A61M29/00
    • A61F2/013A61F2002/011A61F2002/015A61F2002/018A61F2230/0006A61F2230/005A61F2230/0067A61F2230/008
    • An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. In one embodiment, the filtering assembly is attached to the distal end of a guidewire and is deployed within the patient's vasculature as the guidewire is manipulated into the area of treatment. A restraining sheath placed over the filtering assembly in a coaxial arrangement maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Thereafter, the sheath can be retracted to expose the filtering assembly which will then self-expand within the patient's vasculature. Interventional devices can be delivered over the guidewire and any embolic debris created during the interventional procedure and released into the blood stream will enter the filtering assembly and be captured therein. Other embodiments include filtering assemblies attached to an outer tubular member and inner shaft member which apply axial force to the distal ends of the assembly to either expand or contract the struts as needed.
    • 一种用于血管中的栓塞保护装置,当在狭窄或闭塞区域进行介入手术以捕获可能在手术期间产生和释放到血流中的任何栓塞物质。 该装置包括具有自扩张支柱组件和附接到其上的过滤元件的过滤组件。 在一个实施例中,过滤组件附接到导丝的远端,并且当导线被操纵进入治疗区域时,其部署在患者的脉管系统内。 以同轴布置放置在过滤组件上方的限制护套将过滤组件保持在其收缩位置,直到其准备好被医师部署为止。 此后,护套可缩回以露出过滤组件,然后过滤组件将在患者的脉管系统内自我扩张。 介入装置可以在导丝上传送,并且在介入手术期间产生的并释放到血流中的任何栓塞碎片将进入过滤组件并被捕获在其中。 其他实施例包括附接到外部管状构件和内部轴构件的过滤构件,其向组件的远端施加轴向力,以根据需要来扩展或收缩支柱。
    • 9. 发明授权
    • Expandable stent dimensional retention system and method
    • 可扩展支架尺寸保持系统和方法
    • US06506202B1
    • 2003-01-14
    • US09612855
    • 2000-07-10
    • Debashis DuttaChicheng Wang
    • Debashis DuttaChicheng Wang
    • A61M2900
    • A61F2/958A61F2002/9583A61M25/10A61M2025/1075
    • A system used in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region, which is capable of treating an entire affected area in a blood vessel while preventing adverse effects for healthy tissue. The system includes a catheter which is positionable in a blood vessel at the interventional procedure site. The system further includes an expandable interventional instrument such as an expandable stent which is expandable and which may be deployed in the blood vessel at the interventional procedure site, which includes an unexpanded axial dimension. The system also includes an expandable member such as an expandable balloon, for expanding the expandable stent. The expandable balloon is capable of expanding so as to expand and deploy the expandable stent, and to substantially retain the unexpanded axial dimension of the expandable stent. The expansion of the expandable balloon prevents lengthening or shortening of the expandable stent, so as to enable the entire affected lesion area to be covered precisely without affecting the surrounding healthy tissue upon deployment of the expandable stent.
    • 当在狭窄或闭塞的区域进行介入手术时在血管中使用的系统,其能够治疗血管中的整个受影响区域,同时防止对健康组织的不利影响。 该系统包括可在介入手术部位的血管中定位的导管。 该系统还包括可扩张的介入器械,例如可扩张的支架,其是可扩张的并且可以在包括未膨胀的轴向尺寸的介入手术部位的血管中展开。 该系统还包括可膨胀构件,例如可膨胀气囊,用于扩张可扩张支架。 可膨胀气囊能够膨胀以扩张和展开可扩张支架,并且基本上保持可扩张支架的未膨胀的轴向尺寸。 可膨胀气囊的膨胀防止了可扩张支架的延长或缩短,从而使整个受影响的损伤区域能够精确地覆盖,而不会在展开支架时展开周围的健康组织。
    • 10. 发明授权
    • Foamed inner member cover stent retention and method of use
    • 发泡内部构件覆盖支架保留和使用方法
    • US06447521B1
    • 2002-09-10
    • US09662551
    • 2000-09-15
    • Steven L. MouwMurthy V. SimhambhatlaChicheng Wang
    • Steven L. MouwMurthy V. SimhambhatlaChicheng Wang
    • A61F1100
    • A61F2/958A61F2002/9583
    • A catheter system for removably securing a stent which generally includes an inner tubular member and an outer tubular member with an expandable member disposed about the inner tubular member. A foamed cover is disposed between the expandable member and the inner tubular member. An expandable stent is crimped onto the expandable member and is retained in place by compressing the foamed cover. Used with a stent delivery system, the catheter system is inserted into a body lumen such as an artery. The stent is secured in place while advancing the system through tortuous body lumen passages. The stent is advanced to the desired location in the body lumen and implanted by inflating the expandable member and thereby expanding the stent into the body lumen. The stent is released from the system by deflating the expandable member and withdrawing the catheter system from the body.
    • 一种用于可拆卸地固定支架的导管系统,其通常包括内部管状构件和具有围绕内部管状构件设置的可扩张构件的外部管状构件。 泡沫盖布置在可膨胀构件和内管状构件之间。 可扩张支架被卷曲到可膨胀构件上并通过压缩发泡盖保持在适当的位置。 与支架输送系统一起使用时,将导管系统插入诸如动脉的体腔内。 支架固定在适当的位置,同时使系统通过曲折的体腔通道。 支架前进到体腔内的所需位置,并且通过使可膨胀构件膨胀并从而将支架扩张到体腔中而植入。 支架通过使可膨胀构件放气并将导管系统从身体上取出而从系统释放。