Gc Corporation

Naoto Fujii

Yoshihiro Sakaguchi

Hirotaka Yoshihara

Masashi Takahashi

Ryosuke Ikeya

Yusuke Ishikawa

Koichi Mamada

Katsuya Mori

Provided is a scanning jig capable of improving replacement accuracy of three-dimensional data. Provided is a scanning jigfor attaching to an analogembedded in a model or to an artificial tooth rootembedded inside an oral cavity, the scanning jig including: a main bodyformed in a bottomed cylindrical shape provided with a bottom to one end portion; a fixation memberof which one end side is inserted inside the cylindrical shape of the main body and the other end side is fixated to the analog or the artificial tooth root; and a magnetarranged inside the cylindrical shape of the main body, wherein the main body is not provided with a hole or a groove on one end surface on a bottom side of the bottomed cylindrical shape, and the end surface is provided with an inclined surface.

Scanning jig

A stopper storage case has openings and drill blade insertion paths. The openings are large enough to allow a spring-like engagement portion of the stopper to pass. Each drill blade insertion path is large enough to allow a drill blade to pass. Concave parts extend from the respective openings to the drill blade insertion paths and can store stoppers of different lengths. Each of the concave parts has a protrusion to be engaged in a groove in the outer peripheral surface of the stopper. Stopper holding overhangs formed at the top of each concave part are elastic enough not to interfere with insertion of the stopper from above into the concave part and removal of the stopper from inside the concave part.

Stopper storage case

In a hard material made stopper housing case to house a plurality of cylindrical stoppers for defining a drill blade entering depth of a dental implant fixture embedding hole at a jawbone when performing a dental implant treatment, the stopper has a spring-like locking part to be locked with a flange part projected from a shank part of a drill, the stopper housing casehas concave partsprovided in parallel and capable of respectively housing the stopper Y, and each of the concave partsincludes, at one side, a flange part insertion pathhaving a size preventing the spring-like locking part from falling out and being capable of inserting the flange part, and further includes, at another side opposite to the one side, a drill blade part insertion pathcapable of inserting the blade part of the drill X.

Stopper housing case

To provide a detachable stopper fixed on a spindle part of a dental drill to regulate the depth of an implant fixture embedding hole in an implant treatment, the detachable stopper includes a stopper main bodybeing made of an elastically deformable metal material, having a cylindrical shape, having a slightly smaller inner diameter than an outer diameter of the spindle part, having a slit partformed along an axial overall length from an outer peripheral face to an inner peripheral face to have an opening, and having a diameter expanding tool insertion partbored at an axial center of the slit part, and a diameter expanding toolto be inserted into the diameter expanding tool insertion partto expand the inner diameter of the stopper main bodyto be larger than the outer diameter of the spindle part.

Detachable stopper for dental drill

For easy washing and sterilizing of a holding tray for drill bits used in a dental implant operation, a holding tray X includes a tray main bodymade of a hard material capable of autoclave sterilizing and holding membersmade of an elastic material capable of autoclave sterilizing, the tray main bodyincludes holding platesand holding member supporting plateson a back surface of a substrate parthaving rows of linearly aligned through holesfor drill bits, the holding platesinclude half circular cylindrical recessed partsat portions corresponding to the through holes, the supporting plateshave a fixed interval to a planealong the recessed part, and the holding membersare detachably held between the holding platesand the supporting platesto hold the drill bits together with the recessed parts

Holding tray

To provide a fixture mount fixing tool for preventing damage of a fixture in the storage container, when a fixture mount and the fixture are engaged, the fixture mount fixing tool includes a top part () having a bolt insertion through-hole () and a droop part () drooped therefrom, the bolt insertion through-hole () includes an engagement hole () engaged with a regular polygonal-shaped part (Zb) formed on an end part outer face of the fixture mount (Z), and/or the droop part () includes engagement faces contacted with plane parts on an outer face of the fixture mount (Z), and the droop part () includes a locking part () locked with a container holding hole of a base table for holding the storage container (Y) or a locking part () locked with engagement part formed on the side face of the container (Y).

Fixture mount fixing tool

For accurate holding, easy attachment and detachment, and sufficient rotation force, a rotary tool has a holding and transmitting partto hold a hexagonal column of a rotated body and give rotation force, comprising a recessed part, which has an inner face having an approximately regular triangle cross sectional shape, run-off partsat corners of the triangle shape, and a uniform shape in depth direction, and plate springs, which are fixed at a bottom of the recessed partand have pawl partsat tips thereof positioned at the opening side of the recessed part, and the pawl partscan be moved into the run-off partswhile contacting to three side faces of the hexagonal column H and generate spring force, when the hexagonal column H is inserted into the recessed part

Growing community of inventors

Itabashi-ku, Japan

Naoto Fujii