Electric screwdriver for spinal fixation

Abstract

The present invention relates to an electric screwdriver for spinal fixation, and more particularly, to an electric screwdriver for spinal fixation which inserts a screw into the spine of a human body, and comprises: a joint rod, to one end of which the screw is coupled and to the other end of which is coupled to a motor; a main body including a motor that is rotatable in the forward and reverse directions, power-transmitting means for transmitting the rotating force of the motor to the joint rod, an electrical energy supply means for supplying electrical energy to the motor, and a case, one end of which has a first holding portion to be held by one hand of a surgeon and which accommodates the motor, the power-transmitting means and the electrical energy supply means therein; a second holding portion coupled to an outer surface of the case such that the second holding portion is rotatable relative to the case and can be held by the other hand of the surgeon; and an automatic / manual operating unit which enables the second holding portion to be fixed on the case when the screw is inserted by operating the motor, and enables the second holding portion to be rotatable relative to the case when the motor stops operating and the surgeon manually inserts the screw.

Description

technical field [0001] The present invention relates to an electric screwdriver for spinal fixation, and more particularly, to an electric screwdriver for spinal fixation with which a surgeon can easily insert a screw into the spine. Background technique [0002] Stem screw fixation is performed during spinal surgery to stabilize the spine. To insert some kind of screw into a spinal segment, the screws are inserted into the spinal segment above and below the spinal joint to be operated on, and then firmly fixed. [0003] In detail, a conventional electric screwdriver for spinal fixation includes a main body, a first holding part, and a second holding part, a connecting rod for connecting a screw is connected to the main body, and the first holding part is formed at one end of the main body, which can Grasped by the surgeon's hand, the second holding portion has a cylindrical shape and is rotatably connected to the main body, formed on an outer circumferential surface of the...

AI Technical Summary

Problems solved by technology

Therefore, it requires correspondingly much effort and more time of the surgeon

[0007] Furthermore, the above disadvantages are intensified if the operation is performed on a patient comprising bone tissue with high bone density into which the screw will be inserted.

Also, if the screw is manually rotated, the screw may not be inserted evenly at the predetermined desired angle and in the predetermined desired direction

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