Ultrasonic endoscope

Abstract

Abstract PURPOSE:To obtain a highly accurate three-dimensional ultrasonic image by properly moving an ultrasonic vibrator, by providing the ultrasonic vibrator in an insert leading part to reciprocally moving the same in an insert axis direction by a linear ultrasonic motor. CONSTITUTION:In order to synthesize a three-dimensional ultrasonic image, the leading end part of an endoscope is set, for example, to such a state that an ultrasonic vibrator 2 most approaches in an insert axis direction and the ultrasonic vibrator 2 is rotated by an ultrasonic motor 3 to obtain the ultrasonic image at that position. Next, a shaft 8 is moved in a direction, wherein the ultrasonic vibrator is allowed to be spaced apart from the insert axis direction, by a linear ultrasonic motor 11 and the ultrasonic image at that position is obtained in the same way. When these operations are continuously repeated by the ultrasonic motor 11 while the moving quantity of the shaft 8 is accurately grasped, a plurality of the two-dimensional ultrasonic images on the same axis are obtained. By synthesizing these two-dimensional ultrasonic images, a three- dimensional ultrasonic image can be obtained.

Inventors

• 👤 Koichi Matsui
• 👤 孝一 松井
• 👤 Akira Murata
• 👤 晃 村田
• 👤 Takashi Tsukatani
• 👤 塚谷　隆志
• 👤 Tsuguhisa Sasai
• 👤 笹井　嗣久
• 👤 Yutaka Oshima
• 👤 豊 大島
• 👤 Hiroki Hibino
• 👤 浩樹 日比野
• 👤 Masaaki Hayashi
• 👤 正明 林
• 👤 Hideo Adachi
• 👤 日出夫 安達

Bibliographic Details