The rotating shaft (1) is provided with insections, and the inner side of the upper cover (4) is provided with matched insections.

In the cutting process, incisions are provided in the tube, and stress is concentrated in the incisions to cut the tube with the incisions as starting points.

Thus, even a non-expert can easily acquire skills, and also, seriously bent sections can be medically operated on, and vertical incisions and turning incisions can be made.

A surgical knife which provides improved multi-sided incisions and preferably allows for a substantially cruciate, or cross-shaped incision.

Reinforcing structures, incisions, partial incisions, and coatings may also be utilized to enhance the textile structures.

Micro-incisions: incisions in the skin 1-2 mm below.

Some cuts may remain in the incisions made during the procedure.

All surgery involves incisions, and these incisions turn into scars.

Preferably, at least two incisions are made simultaneously.

palpation and incisions of organs, where appropriate

Minimal incisions can be used and extended incisions may also be required.

Closed rhinoplasty: the incisions are completely hidden inside the nose (endonasal incisions)

The incisions are shaped similar to the implants.

The grid cuts are examined with a magnifying glass.

The grid cuts are examined with a magnifying glass.