JPS6039891Y2 - dental training mannequin - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement of a mannequin for dental training, and the improvement is that the articulator mounted inside the mannequin is capable of jaw movement including opening/closing movement, lateral movement, and back-and-forth movement. It includes a mechanism that can lock the movements at the same time, and is further oriented to the point that the articulator can be freely removed from the inside of the mannequin.

Traditionally, articulators installed inside mannequins were simple type articulators that could only allow jaw movement to open and close like a hinge, so in order to help people understand the complex jaw movements of the human body, articulators that were installed inside mannequins were designed to be similar to ordinary articulators. A mannequin equipped with a mechanism that can perform synthetic movements of jaw opening/closing movements, lateral movements, and back-and-forth movements has been proposed. Since it does not have a locking mechanism at the same time, for example, even if the opening and closing are locked, there is still room for movement (sideways and back and forth), so further improvements are desired as a training tool.

At the same time, since the articulator is fixed inside the mannequin, it is not possible to remove the articulator alone, and the mannequin head also maintains a relatively immovable relationship with the articulator, so it is difficult to remove the articulator by itself. This made it difficult to operate the articulator.

The present invention has been made to improve the above-mentioned articulator, and it is possible to simultaneously perform the opening/closing, lateral and anteroposterior movements of the articulator mounted on the mannequin, and to simultaneously lock the articulator on the mannequin. Provide something that can be taken out more easily.

In a preferred embodiment, the mannequin is also movable relative to the articulator so that the trainee can easily access it when the articulator is attached, and the incisor road base and the incisor sound guide are also moved away from the articulator. It is designed to be easily removable and convenient for creating a partial denture that does not include the front teeth.

The present invention will be described below with reference to figures, using a semi-adjustable condylar articulator as an example; Fig. 1 is a partially cutaway side view of the mannequin of the present invention, and Fig. 2 is a partially cutaway side view of the mannequin of the present invention. Figure 3 is a cross-sectional view showing the main parts of the jaw opening/closing locking mechanism of the articulator, Figure 4 is a cross-sectional view taken along line IV-IV in Figure 3, and Figure 5 shows the incisor road bed. FIG. 6 is a partially cutaway plan view separated from the articulator, and FIG. 6 is a partially cutaway bottom view of the incisor guide portion.

The outline of the invented dental training mannequin is shown in the figure.
．． The intercondylar axis 10 is mounted between the condylar balls 9, 9 which are movably fitted in the condylar channels 110, 110 of 11, and the upper and lower jaw plates 7 are installed.
, 20 which can be opened and closed, laterally and back and forth, a mannequin head main body 1 in which the articulator 0 is to be housed, and a frame 4 fixed within the mannequin head main body 1. A mounting screw 3 that allows the device 0 to be attached and detached, and a jaw opening/closing locking mechanism part 1 provided in the middle of the mannequin support rod 15 attached to the mannequin head body 1.
6 and a slide rod 18 whose one end is connected to this locking mechanism part 16 and the other end is connected to the mandibular plate 20 via a universal joint 24, and this slide 18 is connected to the jaw opening/closing locking mechanism part 16. On the other hand, the rod 18 can be moved back and forth in the longitudinal direction, and can be rotated in a horizontal plane area including the axis of the rod 18 and in a vertical plane area, respectively. 2
The structure is such that two rotations can be locked at the same time.

The above configuration will be explained in detail below.

The jaw movement mechanism itself, which consists of a condylar path 110, a condylar path plate 111, a condylar ball 9, and an intercondylar axis 10, which performs three-way movement of the upper and lower jaws 7, 20, ie, opening/closing movement, lateral movement, and back-and-forth movement, is housed inside the mannequin. Although the articulator for storage is new, it is already known as a one-piece articulator, so we will omit the details here and only explain the related parts.

The condylar bulb anteroposterior adjusting screw 8 is for moving and stopping the condylar bulb 9 in the condylar tract 110 at a desired position, and the lateral condylar tract tilt fixing screw 1
Reference numeral 9 is for rotating the condylar path frame 111 left and right around its frame axis (not shown) and fixing it at a desired position.

The upper and lower jaw plates 7, 20 are always kept in a closed state with weak elasticity by a spring (not shown).

21, 21 are mounting plates for upper and lower jaw models 25 and 26.

The mannequin head main body 1 is hinged to a frame 4 by a hinge 14 so as to be openable and closable, and a locking tongue piece 2 is attached to the inside of the main body 1. A clamping roll tool 2 is fixed to the frame 4.
By press-fitting the head body 1 into the head body 1, the head body 1 is locked so that it cannot be opened, but when this lock is manually released and the head body 1 is pushed upward, the head body 1 is opened so that the articulator 0 can be exposed as shown by the dotted line in Figure 1. be put in a state of

The articulator mounting screw 3 that removably connects the articulator 0 to the frame 4 is shown as a hinge between the frame 4 and the connector 113 of the articulator 0 and the frame 4.

A bracket 151 extends from the upper part of the mannequin support rod 15, and a rotating shaft 1 is connected to the frame 4 and the bracket 151.
3 is mounted on a shaft, and a support rod 15 is rotatable around this rotating shaft 13 so that the position of the articulator 0 within the mannequin head body 1 can be changed. It is supposed to stop.

The jaw opening/closing locking mechanism part 16 in the middle of the support rod 15 is the third
As shown in FIG. 4, a spherical body 161 that supports the slide rod 18 so as to be freely advanced and retracted along the axial direction is supported by a spherical bearing 162 on the outside of the spherical body 161.
rotatably within a vertical plane including the axis of the set screw 163.
so that it can be fixed in any axial position by.

The spherical bearing 162 is rotatably supported in a horizontal plane area including the axis of the slide rod 18 by a pole bearing 164 arranged in the axial direction of the support rod 15, and the pole bearing 164 is provided midway along the support rod 15. A U-shaped holder 1 is fixed to a flange 165 with screws 166.
67.

The set screw 163 locks the spherical bearing 162, the spherical body 131, and the holder 167 for the bearing 162 at the same time in a fastened state.

The other end of the slide rod 18 is connected to the mandibular plate 20 via a universal joint 24.

22 is a fixing screw for the model attachment plate 21. In this illustrated example, the incisor fence guide portion 6 and the incisor road base 23 are removable from the maxillary plate 7 and the mandibular plate 20, and a prosthetic training is performed to obtain an unnecessary partial denture for the front teeth and adjacent side dentures. In this case, consideration has been given to the removal of these unnecessary members 6, 23, and as shown in FIGS. Insert the tenons 61, 231 at the ends of the sound guide section 6 and the incisor road bed 23 and tighten the set screws 62.
, 232 are used for fixation.

In addition to the mounting structure of the articulator 0 in the embodiment, if a long hole (not shown) with one end open is provided in the connector 113 or one of the frames 4, the articulator 0 can be attached simply by loosening the mounting screw 3. Since it can be attached and detached from the frame 4, it can be adopted as a desirable alternative structure.

The present invention has the above-described configuration, so when the articulator 0 is attached, the set screw 163 of the jaw opening/closing locking mechanism section 16 is loosened, and when the upper and lower jaws are opened and closed, the slide rod 18 is moved inside the mechanism section 16. The opening and closing movement of the upper and lower jaws caused by this opening and closing is caused by the rotation in the vertical plane area mentioned above due to the sliding of the sphere 161 and the spherical bearing 162, and the lateral movement is caused by the movement of the spherical bearing 162 via the ball bearing 164. The rotation of the slide rod 18 in the horizontal plane including its axis corresponds to the longitudinal movement, respectively, and the forward and backward movements of the slide rod 18 with respect to the sphere 161 correspond to each other.

Therefore, if the set screw 16 is loosened, the jaw can be moved freely to open and close, move laterally, and move forward and backward, which matches the content of prosthetic training.

However, when the set screw 16 is tightened, the slide rod 18 is fixed to the sphere 161 so that it cannot move forward or backward, and the spherical bearing 162 and the sphere 162 are fixed unrotatably.
7 and the spherical bearing 162 are rendered unrotatable, and as a result, the above three movements are firmly locked at the same time.

This characteristic is of course useful for conservation practice.

The mannequin's jaw movement is adjusted by adjusting the condylar path 110 with the adjustment screw 8 based on the data from the collected impression, by loosening the fixing screw 19 to swing the condyle path plate 11 from side to side, and by adjusting the condylar ball 9 by adjusting the condylar path 1.
Needless to say, moving the articulator within the 10th position is carried out in the same manner as a conventional articulator.

In addition, in the present invention, since the articulator 0 is detachable from the frame 4 using the mounting screw 3, if the articulator 0 is separated from the mannequin head body 1, it can also be used as a standalone articulator 0. There is the convenience of being able to

In this embodiment, a semi-adjustable condylar articulator is used as an example, but the present invention is not limited to this, and can also be implemented with a fully adjustable articulator or an archon articulator.

In addition, if the mannequin head main body 1 is hinged to the frame 4 as in the embodiment so that the articulator 0 including the frame 4 can be exposed in the maximum opening state, the trainee can easily wear the articulator while wearing the articulator. This also makes it easier to handle the articulator 0.

In addition, if the incisor road base 23 and the incisor bud guiding part 6 are made detachable from the mandibular plate 20 and the maxillary plate 7, only the articulator 0 can be extracted and unnecessary parts of the anterior teeth and adjacent incisors can be removed. These should be preferably adopted as they are useful in making it easier to practice making dentures.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway side view of the mannequin of the present invention, Figure 2 is a back view of only the articulator on the mannequin, and Figure 3 is a cross-sectional view showing the main parts of the jaw opening/closing locking mechanism of the articulator. , FIG. 4 is a sectional view taken along line IV-TV in FIG. 3, FIG. 5 is a partially cutaway plan view of the incisor roadbed separated from the articulator, and FIG. 6 is a partially cutaway bottom view of the incisor sliding section. Explanation of symbols, 1...Mannequin head body, 3.
...Mounting screw, 4...Frame, 7,2
0... Maxillary plate, 9... Condylar bulb, 10
・・・・・・Intercondylar axis, 11・・・・・・Condylar disc, 14
... Hinge, 16 ... Jaw opening/closing locking mechanism section, 18 ... Slide rod, 110 ...
・・Condyle tract, 163・・Set screw, 0・・・・
Articulator.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. An intercondylar shaft 10 is mounted between the condylar balls 9, 9 which are movably and freely fitted into the condylar channels 110, 110 of the condylar road base 11, 11 to create a mandibular board. An articulator 0 in which 7 and 20 are movable in opening/closing, lateral and longitudinal movements, a mannequin head main body 1 in which this articulator 0 is to be housed, and a frame 4 fixed within this mannequin head main body 1. A mounting screw 3 that allows the articulator 0 to be attached and detached, a jaw opening/closing locking mechanism 16 provided in the middle of the mannequin support rod 15 attached to the mannequin head body 1, and one end attached to the locking mechanism 16. It is connected to a slide rod 18 whose other end is connected to the lower jaw plate 20 via a universal joint 24, and this slide rod 18 is connected to the jaw opening/closing locking mechanism 16 along the longitudinal direction of the rod 18. The rod 18 can be moved forward and backward, and can be rotated in a horizontal plane and a vertical plane including the axis of the rod 18, and can be locked in both the forward and backward directions and the two rotations at the same time by a set screw 163 attached to the locking mechanism part 16. Mannequin for dental training. 2. A utility model in which the mannequin head main body 1 is hinged to the frame 4 so that it can be opened and closed by a hinge 14 when the articulator 0 is attached, and the articulator 0 including the frame 4 can be exposed when the mannequin head body 1 is in the maximum opening state. A mannequin for dental training according to claim 1.