Piezosurgery head

Abstract

The invention discloses a piezosurgery head. The piezosurgery head comprises a bar, a body and a head grinding part located at the front end of the piezosurgery head; the head grinding part is in a triangular pyramid shape, the bottom surface of the triangular pyramid is the rear end of the head grinding part, and the top tip, right facing the bottom surface, of the triangular pyramid is the frontend of the head grinding part; one end of the bar is connected with the rear end of the head grinding part, and the other end of the bar is connected with the body; two side faces in the three side cone faces of the triangular pyramid serve as a first grinding face and a second grinding face respectively. By means of the piezosurgery head, normal bone grinding operation can be completed; meanwhile, as the front end of the piezosurgery head is small in area, the grinding speed is high, and as the rear end is large, a good visual field can be provided for doctors; meanwhile, by the unique full-V structure design, doctors can guarantee that door-spindle-side bone grooves formed after grinding can be fully-closed V grooves at any operation angle, the wound incision area is reduced, use convenience is brought to doctors, and the surgery efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an ultrasonic osteotome cutter head. Background technique [0002] In orthopedic surgery, ultrasonic osteotome is often used for cutting, grinding, planing, scraping or arbitrary shaping of bone. Most of the ultrasonic osteotome cutter heads currently used for bone grinding are square or round. figure 1 Shown is a circular ultrasonic osteotome cutter head in the prior art, including a blade body 3', a cutter bar 1' and a circular cutter head grinding part 2'. The ultrasonic bone knife head has teeth on the side to increase the friction area and resistance, thereby improving the cutting efficiency. [0003] The following problems exist in the application of this ultrasonic bone knife head in spinal surgery: the bone surface to be ground is flat square or circular, and the amount of bone that needs to be ground in the operation of slotting and grinding the bone is lar...

AI Technical Summary

Problems solved by technology

[0003] The following problems exist in the application of this ultrasonic bone knife head in spinal surgery: the bone surface to be ground is flat square or circular, and the amount of bone that needs to be ground in the operation of slotting and grinding the bone is large, The operation speed is slow; in specific operations such as cervical single-door surgery, when the side of the door axis is ground, due to its shape, the ground bone surface cannot be in close contact when closed, which increases the healing time of the patient. The resulting cavity is prone to some other complications

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