Orthopedic limit drilling device with damping and protecting effect

Abstract

The invention discloses anorthopedic limit drilling device with damping and protecting effect. The drilling device mainly comprises an electric borer and a drill sleeve. The drill sleeve and an ultrasonic sensor arranged in a drill bit are capable of effectively preventing excessive drilling. The viscous fluid of a fluid damper is capable of buffering the impact force of the drill bit, reducing the acceleration of the drill bit at the drilling moment and avoiding excessive drilling in the process of piercing. A damping spring arranged at the middle of an active piston plate and a fixing piston plate is capable of offsetting parts of impact of the drill bit and improving stability. A bearing arranged in a bearing device which is arranged at the upper end of the drill sleeve is capable of synchronously rotating together with the drill bit so as to prevent the whole drill sleeve from the impact of drill bit torque. The drill device has the advantages of high drilling precision, controllable drilling depth, operational convenience, short operation time and capability of relieving patients' sufferings.

Description

technical field [0001] The invention relates to the field of orthopedic medical instruments, in particular to a limit orthopedic drilling device with vibration reduction and protection functions. Background technique [0002] Clinically, due to some etiologies, doctors need to use a bone drill to drill holes in the patient's bone, but because the bone drill is not integrated with the bone, it is easy to deviate from the position when drilling, or the drill is deep. , leading to some undesirable consequences. [0003] At present, the surgical skull drilling equipment is a hand-held electric drill. The operation mode of the hand-held electric drill is as follows: the doctor supports the electric drill with bare hands to control the drilling direction and feed rate. The electric drill is designed with a set of safety devices. The power source is connected to the drill bit through the clutch. When the drill bit is under pressure, the drill bit will be connected to the power sou...

AI Technical Summary

Problems solved by technology

However, these methods must rely on the doctor's personal rich clinical experience and hand feeling to judge whether the bone drilling process has passed through the skull, and manually stop it quickly; Electric drill, a little carelessness may also damage the meninges and nerve tissue below the skull while passing through the skull

In addition, when drilling with bare hands, vibration may occur during the drilling process due to insufficient arm strength, which affects the safety, accuracy and comfort of the drilling process

Images