| 摘要 |
PROBLEM TO BE SOLVED: To widen the opening for transmitting/receiving ultrasonic waves and to improve the quality of the ultrasonic image by a puncture needle in an ultrasonic diagnostic apparatus to insert the puncture needle as well as an ultrasonic vibrator into the celom through a trocar. SOLUTION: This ultrasonic diagnostic apparatus 30 consists of a search unit 40, an apparatus body 50 and a signal cable 48. A hole is bored in the abdomen of an organism 10, and the abdomen is inflated with pressure applied therefrom through a trocar. A hole is bored in another part on the abdominal wall 12, and a trocar 20 is inserted into the hole. The search unit 40 is inserted into a trocar 20a. The search unit 40 has a plurality of support parts 70 at the tip. The separation angle for estrangement of each support part 70 can be changed by the operation of a control part 60 at the rear end, so that the shape of the search unit can be "deflated" or "inflated". The puncture needle 42 of the search unit 40 can be stuck out through a gap between the support parts 70. The ultrasonic vibrator 72 is supported by each support part 70. COPYRIGHT: (C)2004,JPO |
