Retractor for spinal surgery

A spine retractor comprising:

• a main body configured to be fastened to a surgery hole and to maintain the surgery hole, the main body comprising:
• a horizontal retraction portion configured to be fastened to an inlet of the surgery hole;
• and
• a vertical retraction portion configured to be inserted into the surgery hole, the vertical retraction portion being coupled to a lower side of the horizontal retraction portion,
• wherein:
• the horizonal retraction portion is formed by a pair of opposite horizontal retraction portions and the vertical retraction portion is formed by a pair of opposite vertical retraction portions,
• the pair of opposite horizontal retraction portions comprising a first retraction portion and a second retraction portion that are formed to be opposite of each other, and each of the first retraction portion and the second retraction portion have an opposite part formed as a concave curved part configured to oppositely face each other, and
• the pair of vertical retraction portion comprises a third retraction portion and a fourth retraction portion formed respectively at the first retraction portion and the second retraction portion so as to extend perpendicularly therefrom along each concave curved part of the first retraction portion and the second retraction portion;
• an elastic body configured to provide retractive force necessary to maintain the surgery hole to the main body;
• and
• a support member formed between the main body and the elastic body, the support member being configured to transmit the retractive force from the elastic body to the main body,
• wherein each of the first retraction portion and the second retraction portion extends in a horizontal direction and has a width greater than a diameter of the support member, and
• wherein the elastic body is formed as a coiled spring formed continuous with the support member or as a spring type hinge connected to the support member, and the coiled spring or the spring type hinge is configured to pull the first and second retraction portions away from each other with its elastic force.