The invention provides dilated
curette capable of being heightened. The dilated
curette includes a dilated
tool bit, an inner tube and a pull rod arranged in the inner tube, and further includes a
handle structure and a height travel limit protection structure, the
handle structure includes a pressing
handle and a main handle, the pressing handle heightens through the dilated
tool bit driven by the pull rod, the height travel limit protection structure includes a spring, an inner limit block, an outer limit block and an indication block which successively sleeve a second fixed column at the far end of the pressing handle, and the indication block drives the inner limit block to rotate and control the pressing height of the pressing handle. The provided
curette can pass through an operatingchannel with a
diameter being 7 mm or below to meet the needs of minimally invasive surgeries, the
tool bit can be dilated and heightened, patients with different
intervertebral disc sizes and heights can be met,
surgical instrument specifications are reduced to simplify the surgeries, the height travel limit protection device is further arranged, patients with low
intervertebral disc heights areprotected by meeting the requirements of the different
intervertebral disc heights, the risk brought by misoperation is also eliminated, and the safety of
surgical operation is guaranteed.