1. An intelligent surgical knife for ophthalmology controlled by 8031 singlechip microcomputer is presented in this paper.

2. The utility model relates to a surgical knife for the internal urethrotomy.

3. Owing to this constitution, this surgical knife blade has a high cut sharpness with regulated scattering in cutting qualities.

4. The utility model relates to a safety surgical knife for pachymeninx.

5. Based on this method, we design and make a model of a surgical knife, by which a cut of tissue and a detection of blood vessels can be achieved simultaneously.

6. Objective To evaluate the clinical efficacy of a newly designed surgical knife in transurethral resection of bladder tumor (TURBt).