| 摘要 |
<p>Disclosed is an implant fixture removing device for removing an implant fixture implanted in the human alveolar bone and constituting an artificial dental root. The disclosed implant fixture removing device comprises a coupling screw, a removing screwdriver, and a female screw member. A coupling screw comprises a coupling male screw unit coupled with a female screw unit of the fixture formed in the bottom end thereof, a guide unit upwardly extended from the coupling male screw unit formed in the middle part thereof, and a head unit having a larger diameter than the diameter of the guide unit formed in the top end thereof. The removing screwdriver is adhered on the top end surface of the fixture while being coupled with the outer circumference of the coupling screw to be able to be vertically moved and rotated so as to rotate and remove the fixture. The removing screwdriver comprises an insertion hole for receiving the guide unit of the coupling screw to be vertically extended, a removing male screw unit having a spiral helix in an opposite direction to the direction of the spiral helix of the coupling male screw unit formed in the top end thereof, and a friction unit rubbed and coming in contact with the top end surface of the fixture formed in the bottom end thereof. The female screw member is disposed at the bottom of the head unit of the coupling screw, and a removing female screw unit screwed with the removing male screw unit of the removing screwdriver is formed on the inner circumferential surface thereof.</p> |
