Patent ID: 11857435
Assignee: KYOUNG GEE AHN
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An angle-expandable spinal cage comprising:
an upper plate and a lower plate disposed to face each other;
a frame disposed between the upper plate and the lower plate, the frame having a space formed therein;
a block disposed between the upper plate and the lower plate and disposed in front of the frame; and
a driving bolt having one end thereof connected to the frame and a remaining end thereof connected to the block,
wherein an angle of each of the upper plate and the lower plate with respect to the frame is increased or decreased when a distance between the block and the frame is adjusted by operating the driving bolt,
wherein the driving bolt comprises:
a bolt body having male threads formed on an outer circumferential surface thereof; and
a bolt head formed at an end of the bolt body, the bolt head having a diameter larger than a diameter of the bolt body,
wherein the bolt head is accommodated in a front hole formed to penetrate through the frame, and
wherein the front hole further accommodates a fixing cap to come into contact with an end of the bolt head, the fixing cap being rotatable in the front hole.