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    • 6. 发明授权
    • Apparatus for in situ measurement of stricture length for stent
    • 用于原位测量支架狭窄长度的装置
    • US5578018A
    • 1996-11-26
    • US448733
    • 1995-05-24
    • Christopher A. RowlandM. Joshua TolkoffElla Zaslavsky
    • Christopher A. RowlandM. Joshua TolkoffElla Zaslavsky
    • A61B10/00A61B10/02A61B10/04A61B17/22A61B17/32A61M25/00
    • A61B10/04A61B2010/0216A61B2017/22038A61B2017/320012
    • Apparatus for use in the diagnosis and treatment of strictures in a biliary duct, urinary tract or pancreatic tract. The apparatus includes a dual lumen catheter device. One lumen size is sized to accommodate a guidewire. A second, parallel lumen has a non-circular cross-section and carries a cytology brush at one end that couples through an operator to a manipulator at another end. The cytology brush has an effective diameter that is greater than the diameter of the catheter device. Brush cytology samples are obtained without removing the guidewire from a stricture and without introducing any relative motion between the guidewire and the catheter. As the cytology brush is retracted into the non-circular lumen, its bristles compact around the operator for storage within the lumen. A predetermined arrangement of markers at the distal end of the catheter facilitates the measurement of stricture length by direct endoscopic visualization.
    • 用于诊断和治疗胆管,尿道或胰腺狭窄的装置。 该装置包括双腔导管装置。 一个管腔尺寸适合容纳导丝。 第二个平行的管腔具有非圆形横截面,并且在一端携带细胞学刷子,在另一端通过操作者耦合到操纵器。 细胞学刷具有大于导管装置直径的有效直径。 获得刷细胞学样本,而不从狭窄中移除导丝,并且不引入导丝和导管之间的任何相对运动。 当细胞学笔刷缩回到非圆形管腔中时,其刷毛围绕操作者紧凑以在管腔内储存。 在导管的远端处的标记物的预定布置有助于通过直接内窥镜可视化来测量狭窄长度。