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2. 发明申请

WO2009058682A2 POLYP TOME 审中-公开
公开(公告)号：WO2009058682A2
公开(公告)日：2009-05-07
申请号：PCT/US2008081102
申请日：2008-10-24
申请人： WILSON COOK MEDICAL INC , SELF THOMAS G , WALLER DAVID F
发明人： SELF THOMAS G , WALLER DAVID F
IPC分类号： A61B18/14 , A61B17/00 , A61B17/22
CPC分类号： A61B18/1492 , A61B17/320783 , A61B2017/003 , A61B2018/144 , A61N1/36082
摘要： The present invention provides apparatus and methods for facilitating removal of polyps from a bodily cavity, such as the colon. The apparatus comprises a catheter having proximal and distal regions, and a cutting wire extending through a first lumen of the catheter. At least one notched section is formed in the distal region of the catheter, and at least a portion of the cutting wire is visibly exposed at the notched section. At the notched section, the exposed cutting wire does not extend substantially radially outward beyond a main body of the catheter. Therefore, the profile of the catheter is not increased. A stiffening member may be advanced within a second lumen of the catheter to selectively provide support to the cutting wire in the vicinity of the notched section. If the stiffening member is not employed, the cutting wire may be proximally retracted or tensioned to bend the distal region of the catheter in the vicinity of the notched section.
摘要翻译：本发明提供了便于从诸如结肠的体腔去除息肉的装置和方法。该装置包括具有近端和远端区域的导管，以及延伸穿过导管的第一内腔的切割线。至少一个切口部分形成在导管的远端区域中，并且切割线的至少一部分在切口部分可见地露出。在切口部分处，暴露的切割线不会大致径向向外延伸超过导管的主体。因此，导管的轮廓不增加。加强构件可以在导管的第二内腔内前进，以在切口部分附近选择性地为切割线提供支撑。如果不使用加强构件，则切割线可以向近端缩回或张紧，以使导管的远侧区域在切口部分附近弯曲。

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