JP6055101B2 - Dental injection simulation device - Google Patents

Description

  The present invention relates to a dental injection simulation apparatus.

  When performing anesthetic injection in dentistry, it is necessary to insert an injection needle at an appropriate position. Therefore, practical training for accurately performing anesthesia injection is performed, and a model for injection training is used for the practical training. As anesthetic injection, infiltration anesthesia and transmission anesthesia are generally known.

  As a model for training of infiltration anesthesia, there is a model made of silicone rubber or the like imitating gums, and an injection solution is discharged out of the model through a glass filter and a chamber (see Patent Document 1). According to this model, by having a predetermined structure, in infiltration anesthesia, it is possible to train to advance the injection needle to an appropriate position and inject the drug solution at an appropriate pressure.

  As a transfer anesthesia, a mandibular transfer anesthesia injection is known. The mandibular hole transmission anesthesia injection is a method of advancing the injection needle with the mandibular foramen (lower alveolar nerve) as the insertion target. There are two types of injection methods: the oral method and the oral method, and the oral method is common in dentistry. There are direct (direct), indirect (binary / ternary), and proximal methods. Direct and proximal methods are recommended to prevent needle tip drowning, nerve, blood vessel, and tissue damage.

  The proximal method inserts the needle forward of the mandibular tongue, thus reducing the risk of the tip of the injection needle damaging a large nerve or blood vessel.

  However, in the direct (direct) method, the needle tip is inserted 10 to 15 mm to reach the bone, returned 1 to 2 mm, and after an aspiration test, the anesthetic solution is slowly injected.

  Alternatively, the anesthetic solution is injected in a state where the resistance of the bone has passed through the lower tongue. Since it is not a hard bone material part but a predetermined space (blade space below the wings) in the cavity, it is not possible to feel that the injection needle has hit the object in this region. Therefore, it is extremely difficult to grasp whether or not the injection needle is advanced to an accurate position.

Japanese Patent No. 5187678

  As described above, mandibular transmission anesthesia injection requires advanced techniques. Therefore, in order to improve the technique of mandibular transmission anesthesia injection, a training model is required that can grasp that the tip of the injection needle is located in a predetermined space.

  This invention is made | formed in view of the above situation, and it aims at providing the dental injection simulation apparatus which can detect that the front-end | tip of an injection needle is located in predetermined | prescribed space.

  The present inventors have found that the tip of the injection needle can be detected in a predetermined space by using a predetermined intraoral model and a notification mechanism, and have completed the present invention. More specifically, the present invention provides the following.

  (1) A dental injection simulation device, which is formed on a lower jaw, a needle insertion region located on the inner side of the inner surface of the lower jaw, and a rear side of the needle insertion region inside the lower jaw. A cavity portion, and a notification in the first mode when the tip of the injection needle inserted from the needle insertion region is located in a predetermined target region in the internal space of the cavity portion A dental injection simulation apparatus comprising:

  (2) The notification mechanism includes a first electrode that is disposed in the needle insertion region and through which the injection needle can penetrate, a second electrode that is disposed in the target region, the first electrode, and the second electrode. A dental power injection unit according to (1), comprising: a power supply unit to be connected; and a notification unit that performs notification in the first mode when the first electrode and the second electrode are conducted by the injection needle. Simulation device.

  (3) The dental injection simulation apparatus according to (2), wherein the second electrode is configured by a brush electrode.

  (4) The dental injection simulation device according to (3), wherein an angle formed by a direction in which the brush constituting the brush electrode extends and an injection needle inserted from the needle insertion region is an acute angle.

  (5) It further includes a first contact allowable region located between the needle insertion region and the target region on the wall surface of the hollow portion, and the notification mechanism is an injection inserted from the needle insertion region The dental injection simulation apparatus according to any one of (1) to (4), wherein when the tip of the needle comes into contact with the first contact allowable region, notification is performed in the second mode.

  (6) It further includes a first non-contact area located on the back side of the target area on the wall surface of the cavity, and the notification mechanism has a tip of the injection needle inserted from the needle insertion area at the first position. The dental injection simulation apparatus according to any one of (1) to (5), which performs notification in a third aspect when the non-contact area is contacted.

  (7) It further includes a second non-contactable area located between the needle insertion area and the target area in the hollow portion, and the notification mechanism includes a syringe needle inserted from the needle insertion area. The dental injection simulation apparatus according to any one of (1) to (6), which performs notification in a third aspect when the tip contacts the second non-contactable region.

  (8) The apparatus further includes a second contact-permitted region located on the back side of the target region on the wall surface of the cavity, and the notification mechanism has a tip of the injection needle inserted from the needle insertion region. 2. The dental injection simulation apparatus according to any one of (1) to (7), which performs notification in a fourth mode when the two contact allowable areas are contacted.

  (9) The dental injection simulation apparatus according to any one of (1) to (8), wherein the hollow portion and the member disposed in the hollow portion are configured to be replaceable with respect to the lower jaw portion.

  (10) The intraoral model further includes an upper jaw part, a temporomandibular joint part that connects the rear part of the lower jaw part and the rear part of the upper jaw part so that the lower jaw part and the upper jaw part can be opened and closed. The dental injection simulation apparatus according to any one of (1) to (9).

  (11) A dental injection simulation device component that includes the needle insertion region and the hollow portion and is detachably used in the dental injection simulation device according to (1) to (10).

  According to the present invention, when the predetermined notification mechanism is used and the tip of the injection needle is positioned in a predetermined space in the cavity portion of the intraoral model, the notification mechanism notifies the trainee, so that the injection needle is predetermined for the trainee. Can be detected.

It is a perspective view which shows the dental simulation apparatus which concerns on one Embodiment of this invention. It is a disassembled perspective view of a lower jaw part. FIG. 3 is an inner side view of the lower jaw portion viewed in the direction of arrow A in FIG. It is a figure which shows the state which isolate | separated the jawbone part and the attachment / detachment member in FIG. It is the left view of a lower jaw part, and is the figure which looked at the lower jaw part in the arrow B direction of FIG. FIG. 6 is a sectional view taken along line XX of FIG. 5. It is a figure which shows the state of use of the dental simulation apparatus of this embodiment, and is a figure which shows the state which the front-end | tip of the injection needle contact | abutted to the 1st contact | permission allowable area | region. It is a figure which shows the state of use of the dental simulation apparatus of this embodiment, and is a figure which shows the state which the front-end | tip of the injection needle reached | attained the target area | region. It is a figure which shows the state of use of the dental simulation apparatus of this embodiment, and is a figure which shows the state which the front-end | tip of the injection needle reached | attained the 1st contact | abutting permissible area | region. It is a figure which shows the state of use of the dental simulation apparatus of this embodiment, and is a figure which shows the state which the front-end | tip of the injection needle reached | attained the 1st contact impossible area. It is a figure which shows the state of use of the dental simulation apparatus of this embodiment, and is a figure which shows the state which the front-end | tip of the injection needle reached | attained the 2nd contact impossible area. It is a figure which shows the state of use of the dental simulation apparatus of this embodiment, and is a figure which shows the state which the front-end | tip of the injection needle contacted the 2nd contact permission area | region.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the dental injection simulation apparatus 1 of the present embodiment includes an intraoral model 10 and a notification mechanism 20. The intraoral model 10 includes a lower jaw part 11, an upper jaw part 12, and a temporomandibular joint part 13 that connects the lower jaw part 11 and the upper jaw part 12 so as to be opened and closed.
The lower jaw part 11 constitutes a main part into which the injection needle is inserted in the dental injection simulation apparatus 1. As shown in FIGS. 2 to 4, the lower jaw portion 11 includes a jawbone portion 111, a gingival portion 112, a needle insertion region 113, and a cavity portion 114.

The jawbone 111 constitutes a jawbone part and a tooth part in the lower jaw part 11.
The gingival part 112 constitutes a gingival part in the lower jaw part 11. The gingival portion 112 is made of a member made of a material that can be penetrated by an injection needle such as silicon rubber.

  As shown in FIGS. 1 and 2, the needle insertion region 113 is located on the back side of the inner surface of the lower jaw portion 11. More specifically, the needle insertion region 113 is a region where the gingival portion 112 on the inner side of the lower jaw portion 11 is located. In the present embodiment, the needle insertion region 113 is located between the wing-projecting mandibular fold portion 25 and the inner oblique line portion 26 (see FIG. 6), and is disposed at a height region substantially the same as the occlusal plane of the mandible (see FIG. 6). (See FIG. 5). The position of the needle insertion area 113 is not particularly limited as long as there is a slight difference depending on the school or individual and is within a range in which the injection needle can be advanced to the insertion target described later.

  The hollow portion 114 is formed on the back side of the needle insertion region 113 inside the lower jaw portion 11. In this embodiment, as shown in FIGS. 2 to 4, the cavity portion 114 is formed inside an attachment / detachment member 115 that can be attached to and detached from the lower jaw portion 11. The detachable member 115 includes a cavity portion 114 formed therein, an opening 116 formed in a position corresponding to the needle insertion region 113 in a state of being attached to the lower jaw portion 11, and the opening 116. And a plurality of electrodes (details will be described later) disposed in a predetermined region of the cavity 114. In this embodiment, the cavity 114 is formed at a position corresponding to the wing-projecting mandibular space located on the near side of the lower jaw hole (see FIG. 6).

Similar to the lower jaw part 11, the upper jaw part 12 includes a jawbone part that constitutes a jawbone part and a tooth part in the upper jaw part 12, and a gingival part that constitutes a gingival part in the upper jaw part 12.
The articulator unit 13 connects the rear part of the lower jaw part 11 and the rear part of the upper jaw part 12 so that the lower jaw part 11 and the upper jaw part 12 can be opened and closed. Thereby, the intraoral model 10 is comprised so that opening and closing of the lower jaw part 11 and the upper jaw part 12 is possible like an actual human being.

The notification mechanism 20 detects that the tip of the injection needle inserted from the needle insertion region 113 has reached a predetermined region, and performs notification in a predetermined manner.
In the present embodiment, the notification mechanism 20 includes a first electrode 21, a second electrode 22, a third electrode 23, a fourth electrode 24, a fifth electrode 25, a power supply unit (not shown), and a notification unit. (Not shown).

  The first electrode 21 is disposed in the needle insertion area 113. More specifically, the 1st electrode 21 is arrange | positioned in the back | inner side of the gingival part 112 located in the needle insertion area | region 113. FIG. The first electrode 21 is formed of a cloth electrode that is formed by weaving a fibrous conductive member into a mesh shape and through which an injection needle can penetrate.

  The second electrode 22 is disposed in a predetermined target region R1 in the cavity 114. Here, the target region R1 in which the second electrode 22 is arranged indicates a region where the tip of the injection needle is to be positioned when the direct (direct) method is performed. In the present embodiment, the space region where the tip of the needle is located when the injection needle is inserted about 10 to 15 mm in the wing-projecting mandibular space (corresponding to the cavity 114) located on the front side of the mandibular foramen Is the target region R1, and the second electrode 22 is disposed in the target region R1.

  In the present embodiment, the second electrode 22 is configured by a brush electrode formed by a plurality of fibrous conductive members extending in a predetermined direction. Further, as shown in FIG. 6, the brush electrode is arranged such that the angle formed by the extending direction of the brush constituting the brush electrode and the injection needle inserted from the needle insertion region 113 is an acute angle. .

  The third electrode 23 is disposed in the first contact allowable region R2 located between the needle insertion region 113 and the target region R1 on the wall surface of the cavity 114. The first contact allowable region R2 indicates a region where the tip of the injection needle inserted from the needle insertion region 113 can contact before reaching the target region R1 when the direct (direct delivery) method is performed.

  The fourth electrode 24 is located between the first non-contact region R3 located on the back side of the target region R1 on the wall surface of the cavity 114, and between the needle insertion region 113 and the target region R1 on the wall surface of the cavity 114. It arrange | positions to the 2nd contact impossible area | region R4. Here, the first non-contact region R3 indicates a region that contacts when the tip of the injection needle is inserted past the target region R1 when the direct (direct) method is performed. Further, the second non-contactable region R4 contacts when the injection needle inserted from the needle insertion region 113 is advanced in a direction different from the target region R1 when the direct (direct delivery) method is performed. This indicates a region or a region where the tip of the injection needle should not be inserted, such as a blood vessel or a nerve.

  The fifth electrode 25 is disposed in the second contact allowable region R5 located on the back side of the target region R1 on the wall surface of the cavity 114. Here, the second contact allowable region R5 is a region that can be contacted when the tip of the injection needle is inserted past the target region R1 when the direct (direct delivery) method is performed, The area corresponding to is shown. The second contact allowable region R5 is located on the front side of the first contact impossible region R3 when viewed from the direction in which the injection needle inserted from the needle insertion region 113 is inserted.

  In the present embodiment, the first electrode 21 to the fifth electrode 25 described above are configured to be detachable with respect to the lower jaw portion 11 by detaching the detachable member 115.

  The power supply unit is connected to the first electrode 21 to the fifth electrode 25 via electric wires. More specifically, the 1st electrode 21 is connected to one pole in a power supply part via an electric wire. The second electrode 22 to the fifth electrode 25 are each connected in parallel to the other pole in the power supply unit.

The notification unit performs notification in a predetermined manner when the first electrode 21 and any one of the second electrode 22 to the fifth electrode 25 are conducted by the injection needle.
In the present embodiment, the notifying unit performs the first operation when the first electrode 21 and the second electrode 22 are conducted, that is, when the tip of the injection needle inserted from the needle insertion region 113 reaches the target region R1. Notification is performed in the first mode.

In addition, when the first electrode 21 and the third electrode 23 are conducted, the notification unit performs notification in a second mode different from the first mode.
Further, when the first electrode 21 and the fourth electrode 24 are conducted, the notification unit performs notification in a third mode different from the first mode and the second mode.
Furthermore, when the 1st electrode 21 and the 5th electrode 25 conduct | electrically_connect, an alerting | reporting part alert | reports in the 4th aspect different from a 1st aspect, a 2nd aspect, and a 3rd aspect.

  Moreover, a notification part is connected with an electric wire in the form which enables notification in the 1st-4th aspect.

Next, the usage method of the dental injection simulation apparatus 1 of this embodiment is demonstrated.
When the direct injection method training is performed using the dental injection simulation apparatus 1 according to the present embodiment, the trainee first has canines positioned on the side opposite to the needle insertion region 113 as shown in FIG. -The injection needle is advanced from the first premolar tooth T1 toward the needle insertion region 113, and the injection needle is inserted into the needle insertion region 113.

  The tip of the injection needle inserted into the needle insertion region 113 passes through the first electrode 21 (cloth electrode) and enters the cavity 114. If the injection needle is further inserted from this state, as shown in FIG. 7, the tip of the injection needle comes into contact with the third electrode 23 arranged in the first contact allowable region R2. Then, since the 1st electrode 21 and the 3rd electrode 23 are conduct | electrically_connected by an injection needle, an alerting | reporting part alert | reports by a 2nd aspect (for example, a sound "hollow holo"). Thereby, the trainee can recognize that the injection needle is inserted in the correct direction.

Then, when the injection needle is further inserted from the state shown in FIG. 7, as shown in FIG. 8, the tip of the injection needle comes into contact with the second electrode 22 arranged in the target region R1. Then, since the 1st electrode 21 and the 2nd electrode 22 are conduct | electrically_connected by an injection needle, an alerting | reporting part alert | reports by a 1st aspect (for example, a sound "ping pong"). Thereby, the trainee can recognize that the injection needle has reached the target region R1.
As shown in FIG. 9, even when the tip of the injection needle is inserted from the wrong direction and does not move after reaching the first contact allowable region, the first electrode 21 and the third electrode 23 are used. Are conducted by the injection needle, so that the notification unit performs the notification in the second mode (for example, a sound “holo-holo”). As described above, when the notification is performed according to the second mode but the injection needle cannot be advanced, the trainee can recognize that the injection needle is inserted in the wrong direction.
Here, in this embodiment, the 2nd electrode 22 is comprised by the brush electrode. As a result, when the tip of the injection needle comes into contact with the brush electrode (inserted), the resistance to the injection needle can be reduced, giving the trainee that the tip of the injection needle has come into contact with a foreign object. It can be difficult. Therefore, it can be notified that the injection needle is positioned in the target region R1, while making it difficult for the trainee to feel that the injection needle is positioned in the target region R1.
In addition, the brush electrode was arranged so that the angle formed by the extending direction of the brush constituting the brush electrode and the injection needle inserted from the needle insertion region was an acute angle. Thereby, resistance when the front-end | tip of an injection needle contacts the brush electrode (it stabbed) can be reduced more.

  When the injection needle is further inserted from the state shown in FIG. 8, as shown in FIG. 10, the tip of the injection needle penetrates the target region R1 and is placed in the first non-contact region R3. 24 abuts. Then, since the 1st electrode 21 and the 4th electrode 24 are conduct | electrically_connected by an injection needle, an alerting | reporting part alert | reports by a 3rd aspect (for example, a sound of "boo"). Thereby, the trainee can recognize that the needle has been inserted too much.

  On the other hand, as shown in FIG. 11, when the injection needle inserted from the needle insertion area 113 is advanced in a direction different from the target area R1, the tip of the injection needle is in the second non-contact area R4. The fourth electrode 24 arranged in contact with the fourth electrode 24 is contacted. Then, since the 1st electrode 21 and the 4th electrode 24 are conduct | electrically_connected by an injection needle, an alerting | reporting part alert | reports by a 3rd aspect (for example, a sound of "boo"). Thereby, the trainee can recognize that the injection needle is inserted in the wrong direction.

  Further, when the injection needle is further inserted from the state shown in FIG. 8 and penetrates the target region R1, as shown in FIG. 12, the fifth electrode 25 arranged in the second contact allowable region R5 is applied to the fifth electrode 25. Abut. Then, since the 1st electrode 21 and the 5th electrode 25 are conduct | electrically_connected by an injection needle, an alerting | reporting part alert | reports by a 4th aspect (for example, the sound of a "pump pin"). Thereby, the trainee can recognize that the injection needle is inserted in the correct direction.

  According to the dental injection simulation apparatus 1 of this embodiment described above, the following effects can be obtained.

  The lower jaw portion 11 includes a needle insertion region 113 and a hollow portion 114 formed on the back side of the needle insertion region. Then, when the tip of the injection needle inserted from the needle insertion region 113 is positioned in the target region R1 in the internal space of the cavity 114, the notification mechanism 20 is notified in the first mode. Thereby, it can be detected that the injection needle is located in the target region R1 which is a predetermined space region.

  The notification mechanism 20 is injected into the first electrode 21 that is disposed in the needle insertion region 113 and through which the injection needle can penetrate, the second electrode 22 that is disposed in the target region R1, and the first electrode 21 and the second electrode 22. And a notification unit that performs notification in the first mode when conducted by a needle. As a result, the tip of the injection needle inserted into the needle insertion region 113 penetrates the first electrode 21 and enters the cavity 114, and comes into contact with the second electrode 22 disposed in the target region R1. The 1 electrode 21 and the 2nd electrode 22 are conduct | electrically_connected by an injection needle, and an alerting | reporting part alert | reports by a 1st aspect. Therefore, the trainee can recognize that the injection needle has reached the target region R1.

  The second electrode 22 was composed of a brush electrode. As a result, when the tip of the injection needle comes into contact with the brush electrode (inserted), the resistance to the injection needle can be reduced, giving the trainee that the tip of the injection needle has come into contact with a foreign object. It can be difficult. Therefore, it can be notified that the injection needle is positioned in the target region R1, while making it difficult for the trainee to feel that the injection needle is positioned in the target region R1.

  The brush electrode was arranged so that the angle formed by the extending direction of the brush constituting the brush electrode and the injection needle inserted from the needle insertion region 113 was an acute angle. Thereby, resistance when the front-end | tip of an injection needle contacts the brush electrode (it stabbed) can be reduced more.

  The intraoral model 10 was configured including a first contact allowable region R2 located between the needle insertion region 113 and the target region R1 on the wall surface of the cavity 114. Then, when the tip of the injection needle inserted from the needle insertion area 113 comes into contact with the first contact allowable area R2, the notification mechanism 20 is notified in the second mode. This allows the trainee to recognize that the needle has been inserted in the correct direction.

  The intraoral model 10 was configured including a first non-contact region R3 located on the back side of the target region R1 on the wall surface of the cavity 114. Then, the notification mechanism 20 is notified in the third mode when the tip of the injection needle inserted from the needle insertion region 113 comes into contact with the first non-contactable region R3. This allows the trainee to recognize that the needle has been inserted too much.

  The intraoral model 10 was configured to include a second non-contactable region R4 located between the needle insertion region 113 and the target region R1 in the cavity 114. Then, when the tip of the injection needle inserted from the needle insertion area 113 comes into contact with the second non-contactable area R4, the notification mechanism 20 is notified in the third mode. This allows the trainee to recognize that the needle has been inserted in the wrong direction.

  The intraoral model 10 was configured to include a second contact allowable region R5 located on the back side of the target region R1 on the wall surface of the cavity 114. Then, the notification mechanism 20 is notified in the fourth mode when the tip of the injection needle inserted from the needle insertion region 113 comes into contact with the second contact allowable region R5. This allows the trainee to recognize that the needle has been inserted in the correct direction.

  When the tip of the injection needle inserted into the needle insertion region 113 passes through the first electrode 21 (cloth electrode) and contacts the third electrode 23, the fourth electrode 24, or the fifth electrode 25 in the notification unit In addition, the notification is performed according to the second aspect, the third aspect, or the fourth aspect. Thereby, according to the area | region where the front-end | tip of the injection needle reached | attained, the structure which can alert | report by a different aspect is easily realizable.

  The cavity portion 114 and the member disposed in the cavity portion 114 are configured to be replaceable with respect to the lower jaw portion 11. Thereby, the difficulty of training can be changed by narrowing or widening the space until the tip of the injection needle inserted from the needle insertion region 113 reaches the target region R1.

  The intraoral model 10 was configured including an upper jaw portion 12 and a temporomandibular joint portion 13. Thereby, the intraoral model 10 is comprised so that opening and closing of the lower jaw part 11 and the upper jaw part 12 is possible like an actual human being. Therefore, it is possible to perform training in an atmosphere close to an actual dentistry site.

The preferred embodiment of the dental injection simulation apparatus of the present invention has been described above. However, the present invention is not limited to the above-described embodiment, and can be appropriately changed.
For example, in the present embodiment, the notification mechanism 20 is configured using a plurality of electrodes, but is not limited thereto. That is, the notification mechanism may be configured using an ultrasonic transmission device. In this case, ultrasonic waves may be transmitted to the target area, and notification may be performed by detecting that the wave is blocked by the tip of the injection needle.

  In the present embodiment, the notification mechanism 20 is notified by emitting a predetermined sound, but the present invention is not limited to this. That is, the notification mechanism may be notified by emitting predetermined light.

  Moreover, although the intraoral model 10 was comprised including the lower jaw part 11, the upper jaw part 12, and the articulator part 13 in this embodiment, it is not restricted to this. That is, you may comprise an intraoral model only from a lower jaw part.

  In this embodiment, both the electrode arranged in the first non-contact area R3 and the electrode arranged in the second non-contact area R4 are the fourth electrodes 24. However, the electrodes are different from each other. May be. In addition, when each electrode is made different, the tip of the injection needle penetrates the target region R1 and comes into contact with the fourth electrode 24 arranged in the first contact impossible region R3, and the second contact. In the case where it contacts the fourth electrode 24 arranged in the non-contact area R4, the notification unit may perform notification in a different manner in each case.

  Although the member arrange | positioned at the cavity part 114 will not be specifically limited if it is comprised so that replacement | exchange is possible with respect to the lower jaw part 11, For example, the part etc. which cover the cavity part 114 are said.

  In addition, the present invention may include a dental injection simulation device component that includes the needle insertion region 113 and the cavity portion 114 and is detachably used in the dental injection simulation device. The dental injection simulation device component includes a part of the member covering the cavity 114, the lower jaw 11, the first electrode 21 to the fourth electrode 24, the electric wire connected to the first electrode 21 to the fourth electrode 24, and the notification unit One or more electric wires or the like connected to may or may not be included.

  In order to perform training of mandibular hole transmission anesthesia injection according to the present invention and confirm the skill level of the technique, the target region R1 is made of a penetrable base material such as silicon rubber and injected into the base material. What has a structure where a liquid is discharged | emitted outside a model through a tube can be arrange | positioned. In the training of injection, since a real anesthetic solution is generally used, the generation of rust and the like inside the model due to the anesthetic solution is inevitable. However, since the anesthetic solution is discharged to the outside of the model by using the one having such a structure, it is possible to prevent the occurrence of rust and the like, and that the injection solution has been discharged to the outside of the model. By checking, it can be confirmed that the injection was made at the correct position.

DESCRIPTION OF SYMBOLS 10 Oral model 11 Mandibular part 111 Jawbone part 112 Gingival part 113 Needle insertion area 114 Cavity part 115 Detachable member 116 Opening 12 Upper jaw part 13 Articulator part 20 Notification mechanism 21 1st electrode 22 2nd electrode 23 3rd electrode 24 2nd 4 electrode 25 5th electrode 25 blade protrusion mandibular fold part 26 inner oblique line part R1 target area R2 first contact allowable area R3 first contact impossible area R4 second contact impossible area R5 second contact allowable area T1 first Premolar

Claims (16)

A dental injection simulation device,
An intraoral model comprising: a lower jaw, a needle insertion region located on the inner side of the inner surface of the lower jaw, and a cavity formed on the inner side of the needle insertion region inside the lower jaw ,
A notification mechanism that performs notification in the first mode when the tip of the injection needle inserted from the needle insertion region is located in a predetermined target region in the internal space of the cavity,
A first contact permissible region located between the needle insertion region and the target region on the wall surface of the cavity,
A second non-contactable region located between the needle insertion region and the target region on the wall surface of the hollow portion, and a distance between the first contact allowable region and the second non-contactable region A dental injection simulation apparatus in which the shortest distance is longer than the outer diameter of the injection needle.   The notification mechanism is connected to the first electrode that is disposed in the needle insertion region and through which the injection needle can penetrate, the second electrode that is disposed in the target region, and the first electrode and the second electrode. The dental injection simulation apparatus according to claim 1, further comprising: a power supply unit; and a notification unit that performs notification in the first mode when the first electrode and the second electrode are conducted by the injection needle.   The dental injection simulation apparatus according to claim 2, wherein the second electrode is configured by a brush electrode.   The dental injection simulation apparatus according to claim 3, wherein an angle formed between a direction in which the brush constituting the brush electrode extends and an injection needle inserted from the needle insertion region is an acute angle.   The said alerting | reporting mechanism alert | reports in a 2nd aspect, when the front-end | tip of the injection needle stabbed from the said needle insertion area | region contacts the said 1st contact permission area | region. The dental injection simulation apparatus as described. Further comprising a first non-contact area located on the back side of the target area on the wall surface of the cavity,
The said alerting | reporting mechanism alert | reports in the 3rd aspect, when the front-end | tip of the injection needle inserted from the said needle insertion area | region contacts the said 1st contact impossible area. The dental injection simulation apparatus as described.   The notification mechanism according to any one of claims 1 to 6, wherein the notification mechanism performs notification in a third mode when a tip of an injection needle inserted from the needle insertion region contacts the second non-contactable region. The dental injection simulation apparatus as described. A dental injection simulation device,
An intraoral model comprising: a lower jaw, a needle insertion region located on the inner side of the inner surface of the lower jaw, and a cavity formed on the inner side of the needle insertion region inside the lower jaw ,
A notification mechanism that performs notification in the first aspect when the tip of the injection needle inserted from the needle insertion region is located in a predetermined target region in the internal space of the cavity,
The notification mechanism is connected to the first electrode that is disposed in the needle insertion region and through which the injection needle can penetrate, the second electrode that is disposed in the target region, and the first electrode and the second electrode. A dental injection simulation apparatus comprising: a power supply unit; and a notification unit that performs notification in the first mode when the first electrode and the second electrode are conducted by the injection needle. A dental injection simulation device,
An intraoral model comprising: a lower jaw, a needle insertion region located on the inner side of the inner surface of the lower jaw, and a cavity formed on the inner side of the needle insertion region inside the lower jaw ,
A notification mechanism that performs notification in the first mode when the tip of the injection needle inserted from the needle insertion region is located in a predetermined target region in the internal space of the cavity,
A first contact permissible region located between the needle insertion region and the target region on the wall surface of the cavity,
The said notification mechanism is a dental injection simulation apparatus which notifies in a 2nd aspect, when the front-end | tip of the injection needle stabbed from the said needle insertion area | region contacts the said 1st contact permission area | region. A dental injection simulation device,
An intraoral model comprising: a lower jaw, a needle insertion region located on the inner side of the inner surface of the lower jaw, and a cavity formed on the inner side of the needle insertion region inside the lower jaw ,
A notification mechanism that performs notification in the first mode when the tip of the injection needle inserted from the needle insertion region is located in a predetermined target region in the internal space of the cavity,
A first non-contact area located on the back side of the target area on the wall surface of the cavity,
The said notification mechanism is a dental injection simulation apparatus which performs notification in the third mode when the tip of the injection needle inserted from the needle insertion region comes into contact with the first non-contactable region. A dental injection simulation device,
An intraoral model comprising: a lower jaw, a needle insertion region located on the inner side of the inner surface of the lower jaw, and a cavity formed on the inner side of the needle insertion region inside the lower jaw ,
A notification mechanism that performs notification in the first mode when the tip of the injection needle inserted from the needle insertion region is located in a predetermined target region in the internal space of the cavity,
A second non-contactable area located between the needle insertion area and the target area on the wall surface of the cavity,
The said notification mechanism is a dental injection simulation apparatus which performs a notification in the third mode when the tip of an injection needle inserted from the needle insertion region comes into contact with the second non-contactable region. A second contact-permissible region located on the back side of the target region on the wall surface of the cavity,
The notification mechanism according to any one of claims 1 to 11 , wherein the notification is performed in a fourth mode when a tip of an injection needle inserted from the needle insertion region contacts the second contact allowable region. The dental injection simulation apparatus as described. A dental injection simulation device,
An intraoral model comprising: a lower jaw, a needle insertion region located on the inner side of the inner surface of the lower jaw, and a cavity formed on the inner side of the needle insertion region inside the lower jaw ,
A notification mechanism that performs notification in the first mode when the tip of the injection needle inserted from the needle insertion region is located in a predetermined target region in the internal space of the cavity,
A second contact permissible region located on the back side of the target region on the wall surface of the cavity,
The said notification mechanism is a dental injection simulation apparatus which performs notification in the fourth mode when the tip of an injection needle inserted from the needle insertion region comes into contact with the second contact allowable region. The dental injection simulation apparatus according to any one of claims 1 to 13 , wherein the hollow portion and a member disposed in the hollow portion are configured to be exchangeable with respect to the lower jaw portion. The intraoral model is an upper jaw,
The dental part according to any one of claims 1 to 14 , further comprising a temporomandibular joint part that connects the rear part of the lower jaw part and the rear part of the upper jaw part so that the lower jaw part and the upper jaw part can be opened and closed. Injection simulation device. A part for a dental injection simulation device, which includes the needle insertion region and the hollow portion, and is detachably used in the dental injection simulation device according to any one of claims 1 to 15 .

Images