Patent ID: 8852113
Filing Date: 2014-10-07
Classification: A61B

Abstract:
1. A specimen collection treatment instrument, comprising: a tubular portion adapted to be inserted into a body; a cell collecting hole portion comprising a through-hole which allows a distal end portion outer periphery and an internal space of the tubular portion to communicate with each other; an edge for specimen cutting that is formed to be at an acute angle by a surface forming an inner periphery of the cell collecting hole portion and a surface of the tubular portion; a rod portion that is inserted in the tubular portion, and is advanceable and retractable with respect to the tubular portion mutually, the rod portion comprising a cylindrical thin portion as a narrower portion of the rod portion, a diameter of the thin portion being smaller than a diameter of a portion longitudinally adjacent to the thin portion, the thin portion adapted to house a specimen that is collected through the cell collecting hole portion, wherein the diameter of the thin portion is centered about the diameter of the portion longitudinally adjacent to the thin portion; and an ultrasound observing section disposed at a distal end of the rod portion, the ultrasound observing section comprising an ultrasound transducer that transmits ultrasound for obtaining an ultrasound tomographic image through the tubular portion and receives reflected ultrasound, wherein the thin portion is arranged adjacent to the ultrasound observing section.