Technologies

1. Technical overview

The technique relates to a screwdriver for a cervical fixation system or device that allows for easy cervical surgery by removing screws inserted into the cervical spine.

two。 The impact of technology

This provides a screwdriver for a cervical fixation device that makes it easy to remove screws inserted into the cervical spine for smooth neck surgery.

3. Technical content

The cervical spine fixation system includes a cervical spine fixing device for inserting screws into the cervical spine through a screw hole formed in the fixation plate, and a screwdriver for rotating screws. The drive consists of an insertion drive (50) and a release drive (60) comprising protrusions (70).

A raised portion (70) having an oval cross section is located behind the front part of the drive mounted in the groove of the screw. When unscrewed, use a raised portion to widen the gap between the two clamps facing each other on the circumference of the screw hole.