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    • 8. 发明申请
    • Cold collapse method and apparatus
    • 冷塌方法和装置
    • US20080072653A1
    • 2008-03-27
    • US11524133
    • 2006-09-20
    • Matthew J. GillickJohn E. Papp
    • Matthew J. GillickJohn E. Papp
    • B21J7/16
    • A61F2/95A61F2002/9522F25D3/10
    • A system and method are disclosed for collapsing medical devices, such as self-expanding, drug-eluting stents for loading into delivery catheters. The collapsing apparatus may be used for crimping expandable stents and other devices onto a balloon catheter. The medical device is cooled below the austenitic phase transformation temperature of the material forming the device, such as stainless steel or nitinol, and may be cooled until the material has fully transformed to the martenstitic state. For coated medical devices, the device is warmed to a temperature just below the beginning of austenite phase transformation prior to collapsing. An apparatus having a plurality of offset blades, linear bearings, radial bearings and an actuator mechanism is provided for collapsing the medical device. The system is configured with a mandrel subassembly to push the medical device into a catheter sheath, and with a nozzle subassembly to direct cold gas to the medical device.
    • 公开了用于折叠医疗装置的系统和方法,所述医疗装置例如用于装载到输送导管中的自扩张药物洗脱支架。 塌缩装置可用于将可扩张支架和其它装置卷曲到球囊导管上。 将医疗装置冷却到形成装置的材料(例如不锈钢或镍钛诺)的奥氏体相变温度以下,并且可以冷却直到材料完全转变为马氏体状态。 对于涂覆的医疗装置,在折叠之前将装置升温到刚好低于奥氏体相变开始的温度。 提供具有多个偏移叶片,直线轴承,径向轴承和致动器机构的装置,用于使医疗装置折叠。 该系统配置有心轴子组件以将医疗装置推入导管护套中,并且具有喷嘴子组件以将冷气引导到医疗装置。
    • 9. 发明授权
    • Embolic protection system and method including filtering elements
    • 栓塞保护系统及方法包括过滤元件
    • US06383206B1
    • 2002-05-07
    • US09475599
    • 1999-12-30
    • Matthew J. GillickScott J. HuterKent C. B. StalkerBenjamin C. HuterAnuja Patel
    • Matthew J. GillickScott J. HuterKent C. B. StalkerBenjamin C. HuterAnuja Patel
    • A61M2900
    • A61F2/013A61F2002/018A61F2230/0006A61F2230/0067A61F2230/008A61F2230/0093
    • A system used 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 system includes filtering elements which are capable of occluding a blood vessel distal to an interventional procedure site, while enabling the blood to flow past the occlusion and filtering the blood to capture embolic material which may be released into the blood during a therapeutic interventional procedure. The filtering elements include an expandable member which is capable of being expanded distal to the area of treatment at the interventional procedure site for occluding the blood vessel and for enabling the blood to pass therethrough while preventing emboli from passing therethrough. The system also includes a sheath movable distally and proximally to enable the filtering elements to expand into position distal to the interventional procedure site for capturing embolic material and to collapse the filtering elements to retain the captured embolic material therein.
    • 当在狭窄或闭塞区域进行介入手术以捕获在手术期间可能产生和释放到血流中的任何栓塞物质时,在血管中使用的系统。 该系统包括能够封闭介入手术部位远端的血管的过滤元件,同时使血液能够流过闭塞并过滤血液以捕获在治疗介入手术过程中可释放到血液中的栓塞物质。 过滤元件包括可扩张构件,该可膨胀构件能够在介入手术部位处远离扩张区域扩张,用于阻塞血管并使血液能够通过,同时防止栓塞通过。 该系统还包括可向远侧和近侧移动的护套,以使得过滤元件能够扩展到介入手术部位的远端位置,用于捕获栓塞材料并使过滤元件折叠以将捕获的栓塞材料保持在其中。