KR20030014341A - A dental fixture driver for a dental implant - Google Patents

Abstract

PURPOSE: Provided is a driver for a dental fixture which just uses one fixture driver in changing the dental fixture to reduce the entire volume so that it helps to make ease of operating even at a small location. CONSTITUTION: In the driver for the dental fixture which rotates the fixture(1) with a screw part(1d) at the outer circumference side and a polygonal head(1a) at the upper side, the driver for the dental fixture comprises the parts of: a socket groove(5b) which is inserted into the polygonal head of the fixture; a support part(5c) which is extended outwardly along center axis from the socket groove and inserted into a guide hole formed at the upper edge of a screw hole of the fixture; and a spring finger part(5d) which supports the screw hole of the fixture by a spring at the front edge of the support part.

Description

A dental fixture driver for a dental implant

The present invention relates to a fixture driver for rotating a fixture to place a dental fixture for implantation into a jawbone of a patient.

Artificial tooth treatment technology that removes damaged natural teeth from the jawbone of the patient and embeds artificial teeth in place is widely applied. In general, when implanting an artificial tooth in a known artificial tooth treatment technique, a drill hole having an appropriate diameter is drilled at the position of the jawbone where the artificial tooth is to be placed. Then, the screwed portion 1d of the fixture is embedded while forming a screw in the drill hole when it is turned by a screwdriver while the fixture is inserted into the drill hole. The artificial teeth are fixed on the upper end of the fixture embedded in the jawbone.

At this time, when the fixture is placed in the jawbone, a fixture driver system is conventionally used as shown in FIG. In the conventional fixture driver system, the fixture 1 is slightly inserted into a drill hole drilled in the jaw bone, and in that state, the fixture mount 2 is placed on the upper end of the fixture 1 to mount a screw 3. Fasten with). Then, when the mount driver 4 is turned in a state where the socket part 4a of the mount driver 4 is inserted into the polygonal head 1a provided at the upper end of the fixture mount 2, the rotation force is fixed by the fixture mount ( It is transmitted to the fixture 1 through 2) and the fixture 1 is deeply implanted in the jawbone. After fixing the fixture (1) to the jawbone, loosen the mount screw (3) and remove the mount driver (4) from the fixture (1).

As such, a large number of tools are conventionally used to implant fixtures into the jawbone of a patient. Therefore, it is very difficult and time consuming to connect various auxiliary tools such as fixture mounts, mount screws, and mount drivers in a narrow oral cavity. There was a lot of trouble. In particular, it is very difficult to tighten and loosen the mount screw in the oral cavity, and it is almost impossible or very difficult to remove the screw fragments remaining in the fixture when the mount screw is broken while the mount screw is tightened. And when the screw is removed, the fixture shakes, and it is not firmly placed on the jawbone, which causes a fatal problem that the artificial teeth cannot be firmly embedded.

In addition, since the driver's tightening torque is not directly transmitted to the fixture, but through the mount driver, excessive torque may be applied to the mount driver in order to actuate the torque required for the fixture. The large loosening torque is required, and when the large loosening torque is applied, the fixture is relaxed in the jawbone.

Accordingly, the present invention is designed to solve the problems of the conventional artificial tooth fixture driver structure, and can be used to rotate the artificial tooth fixture by itself without using an auxiliary tool while holding a small size fixture The goal is to provide a driver that can be moved from the state.

The present invention for achieving the above object is provided with a socket groove for accommodating the polygonal head of the fixture at the front end of the body, the front end of the body extending outward along the central axis direction in the socket groove screw hole of the fixture The support portion fitted into the guide hole formed in the upper end portion is formed coaxially, and the front end portion of the support portion is provided with a spring finger portion fitted into the screw hole of the fixture to fix the fixture with spring elasticity.

According to the fixture driver according to the present invention having the structure as described above, various auxiliary tools required for embedding conventional fixtures are not required, and the volume of the entire assembly becomes compact, which makes handling easier even in a narrow space. Rest, the procedure time is also significantly shortened to minimize the discomfort of the patient.

1 is a cross sectional view of a conventional fixture driver cut in a longitudinal direction in a state in which a fixture driver is coupled to a fixture;

2 is an exploded perspective view showing a state in which a first embodiment of an artificial tooth fixture driver according to the present invention is coupled to a fixture;

3 is a longitudinal cross-sectional view of a first embodiment of an artificial tooth fixture driver coupled to a fixture according to the present invention;

4 is a longitudinal sectional view of a second embodiment of an artificial tooth fixture driver according to the present invention.

FIG. 5 is a cross-sectional view taken along the line “A-A” of FIG. 4.

※ Explanation of code about main part of drawing ※

1: Fixture 1 for artificial teeth: head of polygon

1b: screw hole 1c: guide hole

2: fixture mount 2a: socket

2b: head part 3: mounting screw

4: Conventional mount driver 5: Fixture driver according to the present invention

5a: shank 5b: socket portion

5c: support part 5d: spring finger part

5e: wrench

Hereinafter, embodiments of an artificial tooth fixture driver according to the present invention will be described in detail with reference to the accompanying drawings.

2 is an exploded perspective view showing a state in which a fixture driver for an artificial tooth according to the present invention is coupled to a fixture, and FIG. 3 is a state in which the fixture driver according to the present invention is coupled to a fixture. Is a cross-sectional view showing the cut in the longitudinal direction.

The first embodiment of the fixture driver according to the present invention has a socket groove 5b for accommodating the polygonal head 1a of the fixture 1 at the tip as shown in FIGS. 2 and 3. A shank 5a, which includes a body and which can rotate a rotary tool, is coaxially connected to the rear end of the body.

At the tip of the body, a support portion 5c is formed coaxially extending from the socket groove 5b to the outside in the direction of the center axis and fitted into the guide hole 1c formed at the upper end of the screw hole 1b of the fixture 1. At the distal end of the supporting portion 5c, as shown in FIG. 3, a spring finger portion 5d for elastically compressing the screw hole 1b of the fixture 1 to hold the fixture 1 is provided. do.

As shown in FIGS. 2 and 3, the implant fixture 1 embedded in the jaw bone of the patient using the fixture driver of the present invention has a screw portion 1d formed on an outer circumferential surface thereof, and a driver 5 at the upper end thereof. A polygonal head 1a is inserted and fitted into the socket portion 5b of the upper portion, and a screw hole 1b is formed along the central axis direction thereof so that the upper crown is fixed with a fastening screw, and the screw hole 1b is provided. In the upper part of the top), a guide hole 1c having a diameter slightly larger than the minimum diameter of the screw hole 1b is formed coaxially with the screw hole 1b.

The socket groove 5d of the fixture driver 5 of the present invention is most preferably formed of a polygonal groove so as to correspond to the fixture 1 having the polygonal head 1a, but the fixture 1 is In the case of having a different polygonal head such as a quadrilateral and an octagon, it may be changed into a socket groove of a corresponding polygon.

Referring to the operation of the fixture driver of the present invention configured as described above are as follows. When the spring finger portion 5d provided at the tip of the present invention is inserted into the screw hole 1b of the fixture 1 and the support portion 5c is slide-inserted into the guide hole 1c of the fixture 1, , The fixture driver 5 of the present invention is positioned relative to the fixture 1 by the support portion 5c, and at the same time the spring finger portion 5d is fixed by the elastic force to be opened outwardly. Ask for support. As described above, the driver 5 of the present invention picks up and fixes the fixture 1 so that the fixture 1 can be moved without falling from the driver 5.

When the fixture 1 attached to the tip is seated in the drill hole pre-drilled in the jawbone, and in that state, the screw 5 is rotated by connecting the rotary tool to the shank 5a of the driver 5 of the present invention. The chews 1 are screwed to the jaw bone while being rotated.

On the other hand, as another embodiment of the fixture driver according to the present invention may have a structure as shown in FIG. A fixture driver according to this embodiment is used for fixtures as shown in FIGS. 4 and 5.

That is, the fixture shown in FIG. 4 has a structure in which a polygonal groove 1e is formed in place of the polygonal head as shown in FIG. 5, and the fixture driver 5 of the present invention used when embedding the fixture. As shown in FIG. 4, the front end includes a body having a polygonal wrench portion 5e fitted into and engaged with the polygonal groove 1a of the fixture 1, and at the rear end of the body, a rotary tool (not shown). The shank 5a which can turn) is coaxially connected.

At the tip of the polygonal wrench portion 5e, a spring finger portion 5d for securing the screw hole 1b of the fixture 1 with spring elasticity extends along the longitudinal direction of the body, and the spring finger portion ( 5d) is provided in plurality at equal intervals along the radial direction with respect to the central axis, and the tip is gradually expanded with respect to the central axis as it moves away from the polygonal wrench part 5e.

When the implant fixture 1 is embedded in the jawbone of the patient using the fixture driver according to the second embodiment of the present invention, as shown in FIG. 4, the spring finger portion 5d is fixed to the fixture 1. The screwdriver 5 of the present invention has the spring finger portion 5d in the state where the screw portion 5e is inserted into the groove 1e of the fixture 1 and the wrench portion 5e is inserted into the groove 1e of the fixture 1 at the same time. The fixture 1 is bitten and supported by the elastic force to be opened to the outside. As described above, the driver 5 of the present invention picks up and fixes the fixture 1 so that the fixture 1 can be moved without falling from the driver 5.

When the fixture 1 attached to the tip is seated in the drill hole pre-drilled in the jawbone, and in that state, the screw 5 is rotated by connecting the rotary tool to the shank 5a of the driver 5 of the present invention. The chews 1 are screwed to the jaw bone while being rotated.

In the second embodiment according to the present invention shown in FIG. 4, the guide portion 1c of the fixture 1 and the corresponding guide portion 5c of the driver may be eliminated as necessary.

According to the artificial tooth fixture driver of the present invention, only one fixture driver can be used to embed artificial tooth fixtures, eliminating the need for various auxiliary tools required to turn the conventional fixtures. Since it becomes easy to handle even in a narrow space, the procedure is easy, and in particular, the fixture can be moved to a fixed state by picking up the fixture at the tip, which makes the procedure easier and easier to handle.

Claims (2)

In the screwdriver 1d is formed on the outer peripheral surface and the fixture driver for artificial teeth for rotating the fixture (1) having a polygonal head (1a) on the upper surface, A body having a socket groove (5b) formed at the front end to accommodate the polygonal head (1a) of the fixture (1), and extends outward along the central axis direction in the socket groove (5b) of the body A support portion 5c fitted into the guide hole 1c formed at the upper end of the screw hole 1b of the chur 1 is formed coaxially with the socket groove 5b, and a fixture 1 is formed at the tip of the support portion 5c. And a spring finger portion (5d) for supporting the screw hole (1b) with spring elasticity. In the artificial tooth fixture driver for rotating the artificial tooth fixture (1d) is formed on the outer peripheral surface and the polygonal groove (1e) on the upper surface, A body having a polygonal wrench portion 5e fitted to and coupled to the polygonal groove 1e of the fixture 1 at the distal end, and extending coaxially from the distal end of the wrench portion 5e to the fixture 1 And a plurality of spring finger portions (5d) for supporting the screw holes (1b) of the spring) with spring elasticity.