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    • 6. 发明授权
    • Medical guide element with diameter transition
    • 医疗导向元件直径过渡
    • US08485969B2
    • 2013-07-16
    • US12233272
    • 2008-09-18
    • Jeffrey GrayzelJoseph Grayzel
    • Jeffrey GrayzelJoseph Grayzel
    • A61B1/00
    • A61M25/0606A61M25/09A61M29/00A61M29/02A61M2025/09083A61M2025/09125A61M2025/09175A61M2210/1021A61M2210/1078A61M2210/122A61M2210/125
    • Improved medical filaments for use with dilators to be inserted into a patient, for example into the vascular lumen, are provided, as well as combinations of filaments and dilators. Methods for use of such filaments and filament-dilator combinations are also described. The filament includes a proximal segment and a distal segment. The diameter of the distal segment is greater than the diameter of the proximal segment. The change in diameter is abrupt, providing a discrete step transition at a point along the filament which presents a proximally-facing surface on the distal segment. When the proximal segment of the filament is fully inserted into a dilator having a distal tip adapted for insertion into a patient, the dilator distal tip firmly abuts the proximally-facing end surface of the distal segment. The relative dimensions of the dilator tip and the discrete stepped transition of the filament provides full shielding or over shielding of the dilator tip, thereby facilitating passage of the dilator tip along the tissue track, through the puncture hole and into the orifice.
    • 提供了用于扩张器插入患者例如血管腔的改进的医用长丝,以及丝和扩张器的组合。 还描述了使用这种细丝和细丝扩张器组合的方法。 细丝包括近端段和远端段。 远端段的直径大于近端段的直径。 直径的变化是突然的,在沿着细丝的点处提供离散的台阶过渡,其在远端段上呈现面向近侧的表面。 当细丝的近端段完全插入到具有适于插入患者体内的远侧末端的扩张器中时,扩张器远侧末端牢固地抵靠远侧段的面向近端的端表面。 扩张器尖端的相对尺寸和细丝的离散阶跃转变提供了扩张器尖端的完全屏蔽或过度屏蔽,从而便于扩张器尖端沿着组织轨道通过穿孔并进入孔中。
    • 7. 发明申请
    • MEDICAL GUIDE ELEMENT WITH DIAMETER TRANSITION
    • 医疗指导元件与直径转换
    • US20100069880A1
    • 2010-03-18
    • US12233272
    • 2008-09-18
    • Jeffrey GrayzelJoseph Grayzel
    • Jeffrey GrayzelJoseph Grayzel
    • A61M25/09A61M29/02
    • A61M25/0606A61M25/09A61M29/00A61M29/02A61M2025/09083A61M2025/09125A61M2025/09175A61M2210/1021A61M2210/1078A61M2210/122A61M2210/125
    • Improved medical filaments for use with dilators to be inserted into a patient, for example into the vascular lumen, are provided, as well as combinations of filaments and dilators. Methods for use of such filaments and filament-dilator combinations are also described. The filament includes a proximal segment and a distal segment. The diameter of the distal segment is greater than the diameter of the proximal segment. The change in diameter is abrupt, providing a discrete step transition at a point along the filament which presents a proximally-facing surface on the distal segment. When the proximal segment of the filament is fully inserted into a dilator having a distal tip adapted for insertion into a patient, the dilator distal tip firmly abuts the proximally-facing end surface of the distal segment. The relative dimensions of the dilator tip and the discrete stepped transition of the filament provides full shielding or over shielding of the dilator tip, thereby facilitating passage of the dilator tip along the tissue track, through the puncture hole and into the orifice.
    • 提供了用于扩张器插入患者例如血管腔的改进的医用长丝,以及丝和扩张器的组合。 还描述了使用这种细丝和细丝扩张器组合的方法。 细丝包括近端段和远端段。 远端段的直径大于近端段的直径。 直径的变化是突然的,在沿着细丝的点处提供离散的台阶过渡,其在远端段上呈现面向近侧的表面。 当细丝的近端段完全插入到具有适于插入患者体内的远侧末端的扩张器中时,扩张器远侧末端牢固地抵靠远侧段的面向近端的端表面。 扩张器尖端的相对尺寸和细丝的离散阶跃转变提供了扩张器尖端的完全屏蔽或过度屏蔽,从而便于扩张器尖端沿着组织轨道通过穿孔并进入孔中。