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    • 45. 发明授权
    • Embolic protection device
    • 栓塞保护装置
    • US06290710B1
    • 2001-09-18
    • US09474557
    • 1999-12-29
    • Brett W. CryerMichael S. Mirizzi
    • Brett W. CryerMichael S. Mirizzi
    • A61M2900
    • A61F2/013A61F2002/018A61F2230/0006A61F2230/0067A61F2230/0078
    • A self-expanding filtration element is fitted to the distal end of a catheter while a sheath for constraining such element to a reduced diameter is mechanically manipulatable from the proximal end of the device. The entire device is maneuvered into position over a guide wire and deployed prior to treatment of the body lumen at an upstream location. After completion of the treatment procedure, the filtration element is collapsed and constrained within the sheath to retain any embolic material that has been captured and allow it to be safely removed from the vasculature. The device may be combined with a primary treatment modality and its low profile allows the constrained filtration element to be removed through a deployed stent.
    • 自扩张过滤元件装配到导管的远端,而用于将这种元件限制到直径减小的护套可从装置的近端机械地操纵。 整个装置被操纵在导丝上的位置并且在上游位置处理体腔前部署。 在完成治疗过程之后,过滤元件被塌缩并且被限制在护套内以保持已经被捕获的任何栓塞材料,并允许其从脉管系统中被安全地移除。 该装置可以与主要处理方式组合,并且其低轮廓允许经限制的过滤元件通过展开的支架移除。
    • 46. 发明授权
    • Method and apparatus for uniformly crimping a stent onto a catheter
    • 将支架均匀地压接在导管上的方法和装置
    • US06240615B1
    • 2001-06-05
    • US09409198
    • 1999-09-30
    • Richard M. KimesMichael S. Mirizzi
    • Richard M. KimesMichael S. Mirizzi
    • B23P1100
    • A61F2/958A61F2002/9522Y10T29/49927Y10T29/53952Y10T29/53987Y10T29/53996
    • A stent crimping tool for firmly and uniformly crimping a stent onto a balloon catheter is constructed from a crimping section holding the stent and the balloon catheter therein, wherein the crimping is actuated by a shaft having an input end and an output end, engaging the crimping section at the output end. The shaft has a detent formed into the input end. A gripping member has an internal cavity to receive the input end, and includes a hole proximate to the shaft, wherein a ball bearing and a compression spring are located within the hole to bias the ball bearing toward the shaft and to engage the detent. When a torque is applied to the gripping member, it is transmitted through the ball bearing to the shaft; if the torque exceeds a predetermined magnitude, it overcomes the force of the spring on the ball bearing causing the bearing to slide out of the detent thereby disconnecting the applied torque from the shaft. The crimping section can be a rubber tube having a lumen holding the stent and catheter. When the shaft compresses the rubber tube as it advances, the lumen collapses and crimps the stent onto the catheter. In another embodiment, the crimping section is a coiled filament suspended at both ends and having an axial space holding the stent and catheter. Rotating the shaft twists the filament which in turn constricts and crimps the stent onto the catheter.
    • 用于将支架牢固且均匀地压接在球囊导管上的支架压接工具由将支架和气囊导管保持在其中的压接部分构成,其中,压接由具有输入端和输出端的轴致动, 在输出端。 轴具有形成输入端的制动器。 夹持构件具有内部空腔以容纳输入端,并且包括靠近轴的孔,其中球轴承和压缩弹簧位于孔内以将球轴承朝向轴偏压并接合止动件。 当扭矩施加到夹持构件时,其通过滚珠轴承传递到轴; 如果扭矩超过预定的大小,则它克服了滚珠轴承上的弹簧的力,导致轴承滑出制动器,从而将施加的扭矩与轴断开。 卷曲部可以是具有保持支架和导管的内腔的橡胶管。 当轴在橡胶管前进时压缩橡胶管时,管腔将支架折叠并卷曲到导管上。 在另一个实施例中,卷曲部分是悬挂在两端并具有保持支架和导管的轴向空间的卷绕细丝。 旋转轴扭转细丝,其又将支架收缩并卷曲到导管上。
    • 47. 发明授权
    • Method and apparatus for uniformly crimping a stent onto a catheter
    • 用于将支架均匀地压接到导管上的装置
    • US6108886A
    • 2000-08-29
    • US340967
    • 1999-06-28
    • Richard M. KimesMichael S. Mirizzi
    • Richard M. KimesMichael S. Mirizzi
    • A61F2/06A61F2/84A61M29/00
    • A61F2/958A61F2002/9522Y10T29/49927Y10T29/53952Y10T29/53987Y10T29/53996
    • A stent crimping tool for firmly and uniformly crimping a stent onto a balloon catheter is constructed from a crimping section holding the stent and the balloon catheter therein, wherein the crimping is actuated by a shaft having an input end and an output end, engaging the crimping section at the output end. The shaft has a detent formed into the input end. A gripping member has an internal cavity to receive the input end, and includes a hole proximate to the shaft, wherein a ball bearing and a compression spring are located within the hole to bias the ball bearing toward the shaft and to engage the detent. When a torque is applied to the gripping member, it is transmitted through the ball bearing to the shaft; if the torque exceeds a predetermined magnitude, it overcomes the force of the spring on the ball bearing causing the bearing to slide out of the detent thereby disconnecting the applied torque from the shaft. The crimping section can be a rubber tube having a lumen holding the stent and catheter. When the shaft compresses the rubber tube as it advances, the lumen collapses and crimps the stent onto the catheter. In another embodiment, the crimping section is a coiled filament suspended at both ends and having an axial space holding the stent and catheter. Rotating the shaft twists the filament which in turn constricts and crimps the stent onto the catheter.
    • 用于将支架牢固且均匀地压接在球囊导管上的支架压接工具由将支架和气囊导管保持在其中的压接部分构成,其中,压接由具有输入端和输出端的轴致动, 在输出端。 轴具有形成输入端的制动器。 夹持构件具有内部空腔以容纳输入端,并且包括靠近轴的孔,其中球轴承和压缩弹簧位于孔内以将球轴承朝向轴偏压并接合止动件。 当扭矩施加到夹持构件时,其通过滚珠轴承传递到轴; 如果扭矩超过预定的大小,则它克服了滚珠轴承上的弹簧的力,导致轴承滑出制动器,从而将施加的扭矩与轴断开。 卷曲部可以是具有保持支架和导管的内腔的橡胶管。 当轴在橡胶管前进时压缩橡胶管时,管腔将支架折叠并卷曲到导管上。 在另一个实施例中,卷曲部分是悬挂在两端并具有保持支架和导管的轴向空间的卷绕细丝。 旋转轴扭转细丝,其又将支架收缩并卷曲到导管上。