会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 43. 发明授权
    • Spiral centering catheter
    • 螺旋定心导管
    • US07306617B2
    • 2007-12-11
    • US10973583
    • 2004-10-26
    • David C. Majercak
    • David C. Majercak
    • A61M29/00
    • A61M25/0069A61F2/958A61M25/0043A61M2025/1047
    • A catheter with proximal and distal ends having a spiral centering device attached near the catheter distal end. The spiral centering device has at least one spiral strut having a proximal end and a distal end. The spiral centering device resiliently tends to center the distal end portion of the catheter, steering the catheter away from the vessel wall during insertion through the vasculature and toward the treatment site. The spiral centering catheter may facilitate access to tortuous anatomy by preventing the distal catheter tip from catching on irregularities in the lumenal surface. If a stent is provided on the catheter, the spiral centering catheter may also facilitate uniform stent expansion by stabilizing the catheter during stent deployment.
    • 具有近端和远端的导管具有附接在导管远端附近的螺旋定心装置。 螺旋定心装置具有至少一个具有近端和远端的螺旋支柱。 螺旋定心装置弹性地倾向于使导管的远端部分居中,在插入通过脉管系统并朝向治疗部位时将导管转向血管壁。 螺旋定心导管可以通过防止远侧导管尖端捕获内腔表面的不规则性来促进进入曲折的解剖结构。 如果在导管上设置支架,则螺旋定心导管还可以通过在支架展开期间稳定导管来促进均匀的支架扩张。
    • 49. 发明授权
    • Low profile radiopaque stent with increased longitudinal flexibility and radial rigidity
    • 低轮廓不透射线支架具有增加的纵向柔性和径向刚度
    • US06190403B1
    • 2001-02-20
    • US09192101
    • 1998-11-13
    • Robert E. FischellDavid R. FischellDavid C. Majercak
    • Robert E. FischellDavid R. FischellDavid C. Majercak
    • A61F206
    • A61F2/915A61F2/91A61F2002/91541A61F2002/91558A61F2250/0029
    • Disclosed is a comparatively thick-walled vascular stent comprising sets of strut members connected by flexible, longitudinally extending links. This design utilizes flexible links with a variety of different shapes. Adjacent flexible links around the circumference of the stent are designed to nest one into the other, allowing the stent to be both thick-walled and to crimp down without overlap onto a low profile balloon. The flexible links are attached to the sets of strut members not at the center like the “S” links of prior art stents, but off center near the end of the curved strut portion of each set of strut members. This off center attachment point allows for a more flexible link without increasing the cell size of the expanded stent. Small cell size is desirable to limit plaque prolapse into the lumen of the expanded stent and to increase the stent's radial rigidity. The relatively thin strut width with thick wall allows the flexible links to easily lengthen and shorten during stent delivery into the body while still providing each flexible link with a considerable degree of radial strength.
    • 公开了一种相对厚壁的血管支架,其包括通过柔性的纵向延伸的连杆连接的支柱构件组。 这种设计利用各种不同形状的灵活链接。 围绕支架圆周的相邻的柔性连接件被设计成将一个嵌入到另一个中,使得支架既可以是厚壁的,也可以无重叠地卷曲到低轮廓气球上。 如现有技术支架的“S”链节,柔性连杆附接到不在中心的支柱构件组,但是在每组支柱构件的弯曲支柱部分的端部附近偏离中心。 该中心附着点允许更灵活的连接,而不增加扩张的支架的电池尺寸。 需要小细胞尺寸以限制斑块脱垂进入扩张的支架的内腔并增加支架的径向刚度。 具有厚壁的相对薄的支柱宽度允许柔性连接件在支架输送到体内时容易地延长和缩短,同时仍然提供相当程度的径向强度的每个柔性连杆。