Abstract
We reported our clinical experiences with the improved prototypes of ultrasonic gastroscope II and ultrasonic laparoscope II. The main points of the improvement in the present prototype are as follows. The visual direction is changed from the previous side view to the end view. The distal rigid part is shortend from 59 mm down to 45 mm, and the part of ultrasonic probe becomes 90 degree flexible bilaterally. With these mechanical improvements, the present ultrasonic scopes were evaluated to be very efficient in the clinical use, and some clinical cases were presented herein in which the present ultrasonic endoscopy was regarded as very useful for establishing the diangosis. Especially, the present procedure was proved to be very diagnostic for a mass lesion in the esophagus.
