Costicartilage rotary-cut device

The invention provides a costicartilage rotary-cut device which is characterized by comprising a thin-pipe-shaped rotary-cut knife, a protection sleeve on the periphery of the rotary-cut knife, and a drive component, wherein the rotary-cut knife can move forwards on the surface of costicartilage in a rotation form so as to cut down the costicartilage fragments, and comprises a hollow bit, and a hollow thin pipe communicated with the bit for storing the costicartilage fragments; the protection sleeve can prevent the rotary-cut knife from damaging the soft tissue adjacent to the costicartilage; the drive component is connected to the tail end of the rotary-cut knife for driving the rotary-cut knife to move forward in a rotation form; the protection sleeve and the rotary-cut knife can slide relatively, and when the protection sleeve touches the costicartilage, the bit extends out of the protection sleeve and moves forwards on the surface of the costicartilage in a rotation form. With the costicartilage rotary-cut device, costicartilage particles can be obtained conveniently and rapidly, and the injury to the body of a patient is reduced.