Treatment tool for endoscope
A technology for treating instruments and endoscopes, applied in the fields of endoscopy, applications, medical science, etc., can solve the problems of inability to scrape a large number of cells, cells falling into the body of the subject, etc.
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no. 1 Embodiment approach )
[0024] figure 1 It is a perspective view showing the treatment instrument for endoscope of this embodiment, figure 2 is along figure 1 Partial cross-sectional view of endoscopic treatment instrument in line II-II, image 3 yes means figure 2 Partial cross-sectional view of the state in which the arm portion of the cell extraction rod in the sample extraction tool is expanded in diameter from the tube, Figure 4 is a brief representation figure 2 A partial cross-sectional view of the method of defining the angle of inclination of the through-hole of the tube, Figure 5 will be figure 2 A partial perspective view showing enlarged top end side of the arm, Figure 6 yes means Figure 5 A partial perspective view of a modified example of the shape of the claw.
[0025] Such as figure 1 , figure 2 As shown, the treatment tool 1 for endoscope has a tube 3 and a sample extraction tool 4 to constitute main parts.
[0026] The tube 3 is formed to be elongated along the e...
no. 2 Embodiment approach )
[0086] Figure 10 is along figure 1 A partial cross-sectional view of the endoscope treatment tool of this embodiment on the line VIII-VIII, Figure 11 yes means Figure 10 A partial cross-sectional view of a state in which the diameter of the arm of the cell extraction rod in the sample extraction tool is expanded from that of the tube.
[0087] The configuration of the treatment tool for endoscope according to the second embodiment is the same as that described above. Figure 1 to Figure 4 Compared with the treatment tool 1 for endoscope of the first embodiment shown in , by the relative movement between the tube and the specimen extraction tool, the claw portion of the cell extraction rod passes through the opening at the tip of the tube and is wider than the outer peripheral surface of the tube. The radial outer diameter expansion is different. Therefore, the same reference numerals are assigned to the same configurations as those of the first embodiment, and descripti...
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