The present invention relates to an apparatus for injecting a surgical thread which facilitates the replacement of a needle member accommodating a surgical thread and which allows a needle member to be fixed in a stable manner so as to allow a surgical thread used in surgery to be injected easily. To achieve the objective above, an apparatus for injecting a surgical thread according to the present invention comprises: a needle member including a needle having a surgical thread embedded inside and a body of which the needle is connected to the front end a main body having a mounting unit including a mounting hole where the body is attached/detached to/from and a coupling space formed at the rear of the mounting hole, and an injection means including an ejector pin being retracted through to the mounting hole for pressing the surgical thread of the needle to be discharged and a fastening means which allows the needle member to be fixed to the mounting unit, wherein the fastening means includes a projection protruding outward in the rear end of the body, a passing groove formed to be recessed along the longitudinal direction of the inner circumference of the mounting hole to allow the project to pass, and an inclination guiding surface connected to the rear end of the passing groove, formed to be recessed along the circumferential direction of the mounting hole, and formed to be inclined upward in the direction of the coupling space to make the projection rotate toward the rear of the projection, thus, upon the rotation of a needle member mounted on the mounting unit, the body is inserted into the coupling space, resulting in the projection to be hung on the uppermost end of the inclination guiding surface so as to allow the needle member to be fixed.COPYRIGHT KIPO 2016본 발명은 수술사가 수용된 바늘부재의 교체를 쉽고 편리하게 행할 수 있으며, 바늘부재를 안정적으로 고정시켜 수술에 사용되는 수술사의 주입을 쉽게 실시할 수 있는 바늘부재의 교체가 편리한 수술사 주입장치에 관한 것이다.상기와 같은 목적을 달성하기 위하여, 본 발명에 따른 수술사 주입장치는 수술사가 내장된 바늘과, 전단부에 상기 바늘이 연결되어 있는 몸체로 이루어진
