Deflectable biopsy catheter
    63.
    发明授权
    Deflectable biopsy catheter 失效
    可折叠活检导管

    公开(公告)号:US5957863A

    公开(公告)日:1999-09-28

    申请号:US111350

    申请日:1998-07-07

    摘要: A deflectable biopsy catheter for obtaining a tissue sample from a body cavity of a patient comprising: an axially elongated catheter shaft having proximal and distal portions respectively terminating at proximal and distal ends, the catheter shaft being sized and constructed to be advanced into a body cavity of a patient; a deflection wire coupled to the distal portion of the catheter shaft and extending within the catheter to the proximal end thereof; and a pair of biopsy jaws coupled to the distal end of the catheter shaft and having first and second opposed free cutting surfaces exposable for contact with a selected area of tissue within the patient's body cavity and movable with respect to each other to cut a tissue sample from the selected area of tissue. Schemes for obtaining samples from body cavities (e.g., the gastrointestinal tract, the heart, the intestines, the uterus, the muscles, the bile duct, and the esophagus) are disclosed. Schemes for treating tissue by ablation or by electro-coagulation are also disclosed.

    摘要翻译: 一种用于从患者的体腔获得组织样本的可偏转的活检导管,包括:轴向细长的导管轴,其具有分别在近端和远端终止的近端部分和远端部分,所述导管轴的尺寸和构造被推进到体腔 的病人 耦合到导管轴的远端部分并在导管内延伸到其近端的偏转线; 以及联接到导管轴的远端的一对活检钳,并且具有可暴露于与患者体腔内的组织的选定区域接触并且可相对于彼此移动以切割组织样本的第一和第二相对的自由切割表面 从组织的选定区域。 公开了用于从体腔(例如,胃肠道,心脏,肠,子宫,肌肉,胆管和食道)获得样品的方案。 还公开了通过消融或电凝治疗组织的方案。