INSTRUMENT FOR COLLECTING TISSUE CELLS

摘要

An instrument (11) for collecting cells of tissues comprises an operating wire (12) having a cell-collecting brush (13) mounted on its distal end, and a tube (15) through which the operating wire is passed in a movable manner. Means is provided (tapered surfaces 14a, 16b) for integrally joining the operating wire (12) to the tube (15) in a detachable manner when the brush (13) projects from the distal end of the tube for use. The instrument is passed through a channel of an endoscope, whereby the brush (13) may be rubbed against tissues of the interior of a physical body to collect cells therefrom by moving the whole instrument to and fro relative to the endoscope.