Patent WO-2019027177-A2 (WO)
Title: Denture holding device for fixture fastening
Inventor: KIM NO GOOK
IPC: A61C8/00
Filed: 2018-07-25
Abstract: The present invention relates to a denture holding device and, more particularly, to a denture holding device for fixture fastening, which can be mounted on a fixture more stably, and which can be attached/detached easily, thereby facilitating separation and coupling of a denture. A denture holding device for fixture fastening according to the present invention comprises a fixture coupling means, a middle fastening member, and a denture holding means. The fixture coupling means has a fixture insertion portion and a head portion. The fixture insertion portion has a screw formed on one end thereof such that the same is screw-coupled to a fixture in an attachable/detachable manner. The head portion extends from the fixture insertion portion such that a groove is formed on the outer peripheral surface of the upper portion thereof along the circumferential direction, and such that an insertion recess is formed on the upper end thereof so as to have an inner diameter larger than that of the entrance thereof. One end of the middle fastening member is open such that the upper portion of the head portion is contained therein in an attachable/detachable manner. The middle fastening member is elastically extended/contracted such that the one end thereof can be inserted into the groove. The middle fastening member has a through-hole formed in the other end thereof such that the insertion recess is opened. The denture holding means has an upper holding portion and a fastening portion such that the same can be attached to/detached from the fixture coupling means. A denture is fixedly coupled to the outer peripheral surface of the upper holding portion, and the middle fastening member is contained in the upper holding portion so as not to escape therefrom. One end of the fastening portion has a diameter larger than the diameter of the entrance of the insertion recess, and can extend/contract in the radial direction such that the same can be inserted into the insertion recess. The other end of the fastening portion is coupled to the upper holding portion through the through-hole. According to the present invention, the upper end of the head portion of the fixture coupling means is coupled to the fastening portion of the denture holding means in an attachable/detachable manner, and the middle fastening member contained in the upper holding portion of the denture holding means is coupled to the upper portion of the head portion in an attachable/detachable manner. The resulting double coupling to the head portion guarantees that a denture can be coupled to the fixture more stably. In addition, according to the present invention, one end of the fastening portion has a recess formed thereon such that the same extends/contracts in the radial direction and is inserted into the insertion recess, and one end of the middle fastening member has an incision recess formed thereon such that the same can widen while elastically extending/contracting such that the denture holding means, to which a denture is fixedly coupled, can be attached/detached easily. Accordingly, a denture can be separated and coupled easily.