髂骨截骨刀

Abstract

本实用新型涉及截骨工具技术领域，提供一种髂骨截骨刀，包括：驱动机构、传动杆和刀头；所述传动杆与所述驱动机构连接；所述刀头与所述传动杆连接，所述刀头的圆周面上螺旋设有多个刀刃，所述驱动机构用于带动所述刀头运动。上述的髂骨截骨刀，通过在刀头的圆周面上螺旋设置多个刀刃，可利用不同的刀刃对髂骨进行切削，从而可在截骨时沿任意方向切削，对髂骨进行任意形状的截骨，满足了临床上精准截骨的需求，减小了截骨面积，降低了对人体的损伤。

Claims

1. An iliac osteotomy knife characterized by, include: Drive mechanism; The transmission rod is connected to the drive mechanism; The cutter head is connected to the transmission rod, and multiple cutting edges are spirally arranged on the circumferential surface of the cutter head. The driving mechanism is used to drive the cutter head to move.

2. The osteotomy knife of claim 1, wherein, The cutter head has multiple first cutting edges spirally arranged in a forward direction on its circumferential surface, and multiple second cutting edges spirally arranged in a reverse direction on its circumferential surface. The driving mechanism is used to drive the cutter head to reciprocate.

3. The osteotomy knife of claim 2, wherein, The end of the cutter head furthest from the transmission rod is provided with a third cutting edge.

4. The osteotomy knife of claim 3, wherein, The end of the cutter head away from the transmission rod is also provided with a fourth cutting edge, which is set at an angle to the third cutting edge.

5. The osteotomy knife of claim 1, wherein, The drive mechanism includes: drive; The drive component is connected to the driver; The bracket has a U-shaped groove, and a portion of the drive assembly is disposed within the U-shaped groove. The portion can intermittently abut against the inner wall of the U-shaped groove when the drive assembly rotates, thereby driving the bracket to swing back and forth. The bracket is connected to the transmission rod.

6. The osteotomy knife of claim 5, wherein, The driving component includes: A connecting shaft, the first end of which is connected to the driver; A rotating shaft, wherein the second end of the connecting shaft is eccentrically connected to the rotating shaft, and the rotating shaft is disposed within the U-shaped groove; When the driver rotates, it can drive the rotating shaft to rotate within the U-shaped groove. When the rotating shaft rotates, it can intermittently abut against the inner wall of the U-shaped groove, thereby driving the bracket to swing back and forth.

7. The osteotomy knife of claim 5, wherein, The swing angle of the bracket is ±10°.

8. The osteotomy knife of claim 5, wherein, It also includes a housing, the drive assembly is disposed inside the housing, and the outer surface of the housing is provided with anti-slip texture.

9. The osteotomy knife of claim 8, wherein, It also includes a handle, which is fitted over the housing, and the surface of the handle has multiple openings to expose the anti-slip texture.

10. The osteotomy knife of claim 9, wherein, It also includes a tube body, which is sleeved outside the transmission rod. The transmission rod is rotatable relative to the tube body, and one end of the tube body is connected to the handle.

Images