JP2011002786A - Jaw model for practicing implant surgery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jaw model for practicing implant surgery for significantly improving the technique of a dentist in performing an implant surgery.SOLUTION: In a tooth-missing area of a gum 4, which is formed inside an alveolar bone 3 formed on the surface layer of the alveolar bone 3 prepared on a lower jawbone 2/upper jawbone, a blood-storing section 10 is prepared for storing simulated blood which flows to the outside, when a cut is made with a scalpel M.

Description

  The present invention relates to a jaw model suitable for use by dentists when practicing implant surgery.

  For the purpose of substituting the lost tooth function, a series of treatments in which an implant body is surgically implanted in the jawbone and an artificial crown and superstructure are formed thereon, so-called implant surgery, is performed. Such an implant operation has an advantage that, unlike a bridge or a denture, a restoration of the function and form closer to the original tooth state is achieved, and there is no need to cut the surrounding teeth.

  In order to perform such an implant operation, for example, it is necessary to open an alveolar bone of the mandible or maxilla using a scalpel (cutting tool) shown as a surgical tool in Patent Document 1. It has become.

Japanese National Patent Publication No. 11-502750

However, although the above-described implant operation requires a technique, there has been a problem that there is no appropriate practice instrument.
For example, the alveolar bone of the mandible passes through the mandibular canal where the inferior alveolar nerve and blood vessels run side by side, and the maxillary bone has the maxillary sinus. Therefore, it was necessary to pay close attention to prevent the surgical instruments from entering, and it was expected that appropriate training instruments would be provided for this purpose. There was also a need for an instrument for practicing the periosteal detachment technique associated with implant surgery.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a jaw model for practicing implant surgery that can greatly improve a technique when a dentist performs an implant operation. .

In order to solve the above problems, the present invention proposes the following means. First, according to the present invention, simulated blood that flows out when stored in a gingiva, which is a missing tooth region of the alveolar bone provided on the mandible and is located on the surface layer of the alveolar bone, is stored. The blood storage part to be provided is provided.
And in such an invention, since the blood storage part in which the pseudo blood was stored was provided in the gingiva which is a toothless region of the alveolar bone and located in the surface layer part of the alveolar bone, When a cutting tool such as a scalpel cuts the gingiva, and the cutting tool reaches the blood reservoir, the simulated blood in the blood reservoir flows out to the surface of the missing tooth region, so that the practice of a realistic implant operation can be performed. it can.

In the jaw model for implant surgery practice of the present invention, an insulating tube corresponding to a mandibular canal is embedded in the alveolar bone and below the blood reservoir, and the cutting tool includes the cutting tool. A continuity detector that detects whether or not the continuity is present is provided, the insulating tube includes a tube main body and a continuity wire inserted into the tube main body, and the cutting tool includes the tube. When the main body is cut and is in contact with the conduction line, an alarm is issued to the conduction detector.
In the present invention, an insulating tube corresponding to the mandibular canal is embedded in the alveolar bone and below the blood reservoir, and the cutting tool cuts the tube main body of the insulating tube to provide an internal conducting wire. The continuity detector is alerted when it comes in contact with the implant, so that the implant practitioner knows that the cutting tool has reached the insulating tube, which is the mandibular canal that must not be damaged. As well as the simulated blood bleeding described above, a realistic implant operation can be practiced.

The jaw model for practicing implant surgery according to the present invention is characterized in that the tube body of the insulating tube is filled with conductive pseudo blood.
In the present invention, when the cutting tool cuts the insulating tube, the conductive pseudo blood flows out from the insulating tube. Therefore, the female and the conductive wire can be indirectly connected through the pseudo blood. The continuity detector can be operated reliably. In addition, when simulated blood flows out even when the insulating tube is cut, a realistic implant operation can be practiced in the same way as simulated blood flow out of the previous blood reservoir.
The jaw model for practicing implant surgery according to the present invention is characterized in that the blood reservoir and the insulating tube are provided with a blood supply device for continuously supplying simulated blood.
In the present invention, since the blood supply device for continuously supplying simulated blood to the blood reservoir and the insulating tube is provided, when the cutting tool incises the blood reservoir and the insulating tube, the simulated blood is continuously discharged. Can practice more realistic implant surgery.

In the jaw model for practicing implant surgery according to the present invention, an incision region of the alveolar bone provided on the maxilla and incised by a cutting tool such as a scalpel in the gingiva located on the surface layer of the alveolar bone. In this case, there is provided a blood storage part in which pseudo blood flowing out is stored.
In the present invention, since the blood storage part in which the pseudo blood is stored is provided in the gingiva provided in the surface layer part of the alveolar bone, which is a missing tooth region of the alveolar bone, When the gingiva is incised by the above and the cutting tool reaches the blood reservoir, the simulated blood in the blood reservoir flows out to the surface of the missing tooth region, so that a realistic implant operation can be practiced.

In the jaw model for practicing implant surgery according to the present invention, a conduction layer is provided between the alveolar bone and the maxillary sinus, and the cutting tool detects whether or not the cutting tool is in a conductive state. A continuity detector is provided, and the continuity detector issues an alarm when the cutting tool comes into a conductive state by contacting the conductive layer.
In the present invention, a conduction layer is provided between the alveolar bone and the maxillary sinus, and an alarm is issued when the conduction tool is brought into conduction by contacting the conduction layer by the conduction detector. The practitioner can surely recognize that the cutting tool has reached the maxillary sinus that should not be injured.

The jaw model for practicing implant surgery according to the present invention is characterized in that the blood reservoir is provided with a blood supply device for continuously supplying simulated blood.
In the present invention, since the blood supply device for continuously supplying simulated blood to the blood reservoir is provided, when the cutting tool incises the blood reservoir, the simulated blood can be continuously discharged, and a more realistic implant Can practice surgery.

  According to the present invention, since the blood storage part in which the pseudo blood is stored is provided in the gingiva, which is a missing tooth region of the alveolar bone and is located on the surface layer part of the alveolar bone, When cutting the gingiva with a cutting tool such as, when the cutting tool reaches the blood reservoir, the simulated blood in the blood reservoir can be practiced for reality implant surgery by flowing out to the surface of the missing tooth region, The effect that the technique at the time of a dentist performing an implant operation can be improved greatly is acquired.

The perspective view of the jaw model for implant surgery practice which shows Example 1 of this invention. The perspective view which shows the state in which the scalpel entered the jaw model of FIG. The longitudinal cross-sectional view which shows the missing tooth area | region (I) vicinity of the jaw model of FIG. Longitudinal sectional view showing Modification 1 of Embodiment 1 A longitudinal sectional view showing a second modification of the first embodiment The longitudinal cross-sectional view of the jaw model for implant surgery practice which shows Example 2 of this invention.

[Example 1]
A first embodiment of the present invention will be described with reference to FIGS.
1 to 3 show a jaw model showing a lower jaw part for implant surgery practice. Reference numeral 1 denotes a tooth, reference numeral 2 denotes a mandible (for example, a support plate), and reference numeral 3 denotes a mandible. 2 is an alveolar bone that is provided on 2 and supports the tooth 1.
As shown in FIG. 3, the mandible 2 including the alveolar bone 3 is entirely composed of a porous material, and a gingiva 4 is formed of a plastic material having flexibility on the surface layer portion. Further, a part of the tooth 1 is missing in the missing tooth region indicated by the symbol (A), and the gingiva 4 is exposed upward in the missing tooth region (A). Further, the surface layer from which the gingiva 4 is exposed is formed with a film 5 made of a plastic material having flexibility. Of the coating 5, the membrane 5A in contact with the mandible 2 is a portion corresponding to the periosteum in particular and is formed of a resin or the like having a thickness of 10 to 50 μm. It is adhered by the agent.

In the gingiva 4 located in this missing tooth region (A), there is provided a blood reservoir 10 for storing pseudo blood as shown in FIG. The blood reservoir 10 is formed to have elasticity by a porous material 10A made of foamed rubber, for example, and non-conductive pseudo blood is preliminarily immersed in the porous material 10A. There is. With such a configuration, the practitioner of implant surgery can use the surgical instrument M (a scalpel is used for cutting the gingiva and a cutting tool such as a drill is used for drilling the bone) to include the gingiva including the coating 5. 4 (see FIG. 2 and FIG. 3), and when the female M reaches the blood reservoir 10, the pseudo blood stored in the porous material 10A of the blood reservoir 10 becomes a missing tooth region (A). It flows out to the surface of the.
In addition, the boundary part between the blood reservoir 10 and the gingiva 4 is waterproofed, and unless the female M enters, the non-conductive pseudo blood stored in the blood reservoir 10 is It is designed not to flow outside.

On the other hand, an insulating tube 11 corresponding to a mandibular canal (alveolar canal) is embedded in the alveolar bone 3 and below the blood reservoir 10. The insulating tube 11 has a tube main body 12 and a conductive wire 13 inserted into the tube main body 12, and the terminal of the conductive wire 13 is grounded. The insulating tube 11 is filled with conductive pseudo blood in advance, and when the insulating tube 11 is cut by the knife M, the conductive wire is indirectly connected through the conductive pseudo blood. 13 is established.
The female M is connected to a continuity measuring instrument 21 through a signal line 20. The continuity measuring instrument 21 is configured such that the end of the signal line 20 is grounded, and detects continuity ON when continuity with the conductive line 13 is achieved via the knife M. The continuity measuring instrument 21 is set to output an alarm (sounding pain, buzzer, lamp lighting, etc.) when continuity ON is detected.
In addition, as the non-conductive pseudo blood filled in the blood reservoir 10, an oily solution such as red fat is used, and as the conductive pseudo blood filled in the insulating tube 11, An aqueous solution such as red water containing ions is used.

In the jaw model showing the lower jaw part for implant surgery practice constructed as described above, it is a missing tooth region (A) of the alveolar bone 3 on the lower jaw bone 2 and is located in the surface layer portion of the alveolar bone 3 Since the blood storage part 10 in which the pseudo blood is stored is provided in the gingival 4 to be performed, the practitioner of the implant operation incises the gingiva 4 including the film 5 with the scalpel M, and the scalpel M is placed in the blood storage part 10. When it reaches, the simulated blood stored in the blood storage unit 10 flows out to the surface of the missing tooth region (A), so that a realistic implant operation can be practiced.
In addition, since the insulating tube 11 corresponding to the mandibular canal is embedded in the alveolar bone 3 and below the blood reservoir 10, the continuity detector 21 for detecting whether or not the female M is in a conductive state is provided. When the insulating tube 11 is cut by the knife M, conduction between the knife M and the conductive wire 13 is achieved, and the conduction measuring instrument 21 detects conduction ON and outputs an alarm. Thereby, the practitioner of the implant operation can surely recognize that the female M has reached the insulating tube 11 that becomes the lower jaw tube that should not be damaged.
In addition, when the female M cuts the insulating tube 11, conductive pseudo blood flows out from the insulating tube 11, so that the female M and the conductive wire 13 are indirectly connected through the pseudo blood. And the continuity detector 21 can be operated reliably. In addition, when the female M cuts the insulating tube 11, pseudo blood flows out from the insulating tube 11, so that the practice of the implant operation with reality is performed in the same manner as the pseudo blood outflow from the blood storage unit 10. it can.
In addition, since the portion 5A corresponding to the periosteum in the coating 5 is particularly detachably bonded to the mandible 2, a procedure for peeling the periosteum from the mandible 2 can be practiced.

(Modification 1)
In the above embodiment, the blood reservoir 10 is filled with an oily solution such as red fat as non-conductive pseudo blood, and the insulating tube 11 contains ions as conductive pseudo blood. Although an aqueous solution such as red water is filled, such simulated blood may not be filled in advance, but may be continuously supplied by a simulated blood supply device 30 as shown in FIG.
The pseudo blood supply device 30 includes a first tank 31 in which non-conductive pseudo blood for the blood storage unit 10 is stored, and a second tank 32 in which conductive pseudo blood for the insulating tube 11 is stored. A conduit 33 connecting the tank 31 and the blood reservoir 10, a conduit 34 connecting the tank 32 and the insulating tube 11, and these blood reservoirs provided in the middle of the conduits 33 and 34. And pumps 35 and 36 for supplying simulated blood to the unit 10 and the insulating tube 11.

In such a simulated blood supply apparatus 30, simulated blood can be continuously supplied to the blood reservoir 10 and the insulating tube 11 by driving the pumps 35 and 36, so that more realistic implant surgery is performed. be able to.
In the simulated blood supply device 30, the discharge pressure is maintained with respect to the pumps 35 and 36 so that a constant pressure is always applied to the simulated blood in the blood reservoir 10 and the insulating tube 11 during the practice of implant surgery. It is preferable to perform control to increase the output of these pumps 35 and 36 when the spurious blood in the blood reservoir 10 and the insulating tube 11 flows out by the knife M and the discharge pressure decreases. .

(Modification 2)
In the modified example 1, the non-conductive pseudo blood for the blood reservoir 10 and the conductive pseudo blood for the insulating tube 11 are accommodated in separate tanks 31 and 32. However, the present invention is not limited to this. As shown in FIG. 5, they may be accommodated in the same tank 37.
In this case, an oil-based solution is used as the non-conductive pseudo blood filled in the blood reservoir 10, and an aqueous solution is used as the conductive pseudo blood filled in the insulating tube 11. When these simulated blood are put together in the tank 37 and left for a while, an oily solution (indicated by reference numeral 37A) is separated in the upper layer portion of the tank 37, and an aqueous solution ( Are separated). As a result, if the oily solution 37A is extracted from the upper layer portion in the tank 37 through the pipe line 33, and the aqueous solution 37B is extracted from the lower layer part in the tank 37 through the pipe line 34, two types of the common tank 37 are provided. The simulated blood can be stored together, and the overall configuration can be simplified as compared with the first modification.

In addition, in order to collect the simulated blood flowing out of the blood reservoir 10 and the insulating tube 11 by the knife M, the tray 40 that receives the simulated blood, the conduit 41 that connects the tray 40 and the tank 37, the conduit It is preferable to provide a recovery device 43 including a pump 42 that is provided in 41 and sends the simulated blood recovered in the tray 40 to the tank 37. If the simulated blood is returned to the tank 37 again by the recovery device 43, the simulated blood can be effectively used.
In this case, the mixture of the oily solution 37A and the aqueous solution 37B recovered in the tank 37 is separated into an upper layer and a lower layer in the tank 37 if left for a while as described above. The solution 37B can be reused again.

[Example 2]
A second embodiment of the present invention will be described with reference to FIG. FIG. 6 shows a jaw model showing an upper jaw part for implant surgery practice. Reference numeral 50 denotes a maxilla (for example, a support plate). Reference numeral 51 is provided on the maxilla 50 to provide teeth 1. The alveolar bone that supports

The maxilla bone 50 including the alveolar bone 51 is entirely composed of a porous material, and a gingiva 52 is formed of a plastic material having flexibility on the surface layer portion thereof. Further, a part of the tooth 1 is missing in the missing tooth region indicated by the symbol (b), and the gingiva 52 is exposed downward in this missing tooth region (b). The surface layer from which the gingiva 52 is exposed is similarly formed with a film 53 made of a plastic material having flexibility.
Of the film 53, the film 53A in contact with the alveolar bone 51 is a portion corresponding to the periosteum in particular, and is formed of a resin having a thickness of 10 to 50 μm. It is adhered by the agent.

In the gingiva 52 located in the missing tooth region (b), a blood reservoir 54 for storing pseudo blood is provided. The blood reservoir 54 is formed so as to have elasticity by a porous material 54A made of foamed rubber, for example, and non-conductive pseudo blood penetrates into the porous material 54A in advance. There is. With such a configuration, when a practitioner of an implant operation incises the gingiva 52 including the coating 53 with the scalpel M and the scalpel M reaches the blood reservoir 54, the porous material 54A of the blood reservoir 54A The simulated blood stored in the blood flow out to the surface of the missing tooth region (b).
In addition, the boundary part between the blood storage part 54 and the gingiva 52 is waterproofed, and the non-conductive pseudo blood stored in the blood storage part 54 is as long as the female M does not enter. It does not ooze out to the outside.

On the other hand, an upper sinus 55 is provided above the alveolar bone 51, and a conductive sheet 56 is provided at the boundary between the maxillary sinus 55 and the alveolar bone 51.
The conduction sheet 56 is grounded via a conduction line 57, and conduction is achieved when the same knife M as in the first embodiment contacts the conduction sheet 56. Then, the continuity measuring instrument 21 is set so that an alarm (sound of pain, buzzer, lamp lighting, etc.) is output when the continuity is ON when the continuity with the continuity sheet 56 is achieved via the knife M. ing.
If a thickness imitating a so-called Schneider film is adopted as the conductive sheet 56, it can be used for practice of a “sinus lift” technique for lifting the conductive sheet 56.

In the jaw model showing the upper jaw part for implant surgery practice constructed as described above, it is a missing tooth region (b) of the alveolar bone 51 on the maxilla bone 50 and is located on the surface layer portion of the alveolar bone 51. Since the blood storage part 54 in which the pseudo blood is stored is provided in the gingiva 52, the practitioner of the implant operation incises the gingiva 52 including the film 53 with the scalpel M, and the scalpel M is placed in the blood storage part 54. When it arrives, the simulated blood stored in the porous material 54A of the blood storing part 54 flows out to the surface of the missing tooth region (b), so that a realistic implant operation can be practiced.
In addition, since the portion 53 </ b> A corresponding to the periosteum in the coating 53 is particularly detachably bonded to the alveolar bone 51, a procedure for peeling the periosteum from the alveolar bone 51 can be practiced.
In the jaw model showing the upper jaw part for implant surgery practice, a conduction sheet 56 is provided between the alveolar bone 51 and the maxillary sinus 55, and the conduction detector detects whether or not the knife M is in a conduction state. 21 is provided, and when the knife M is brought into a conductive state by contacting the conductive sheet 56, the conduction detector 21 detects the conduction ON and outputs an alarm. Thereby, the practitioner of the implant operation can surely recognize that the female M has reached the maxillary sinus 55 that should not be damaged. In addition, the maxillary sinus 55 may be filled with a conductive liquid so that an alarm that the surgical instrument M has reached the maxillary sinus 55 is activated, or a pressure gas such as air is sealed. Alternatively, the conductive sheet (corresponding to the Schneider film) 56 may be used for practice of a technique for deforming the conductive sheet 56 by the pressure difference using the pressure difference between the inside of the maxillary sinus 55 and the external pressure.

  In the second embodiment, pseudo blood is filled in the blood reservoir 54, but such pseudo blood is not filled in advance, but by the pseudo blood supply device 30 as shown in FIG. You may make it supply continuously. Moreover, in Example 2, although the conduction | electrical_connection sheet 56 was used as a conduction | electrical_connection layer, it is not limited to this, You may form a conduction | electrical_connection layer by arrange | positioning a conduction line at a fixed space | interval.

  In the said Example 1 and 2, although the knife M was used as a cutting tool, cutting tools, such as a drill, may be sufficient, and the form of a cutting tool is not limited to the knife M.

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included. Moreover, although the pseudo tooth is provided in the model of the said embodiment, of course, this invention is applicable to the model of an edentulous jaw without a tooth | gear.

  The present invention relates to a jaw model that can be used by a dentist when practicing implant surgery.

DESCRIPTION OF SYMBOLS 1 Tooth 2 Mandible 3 Alveolar bone 4 Gingiva 10 Blood storage part 11 Insulation tube 21 Conduction measuring device 30 Pseudo blood supply device 50 Maxilla 51 Alveolar bone 52 Gingiva 53 Film | membrane 54 Blood storage part 55 Maxillary sinus 56 Conduction sheet (conduction layer)
M knife (cutting tool)
A Missing tooth area B Missing tooth area

Claims (7)

  There is a blood reservoir in which pseudo blood that flows out to the outside when stored by a surgical instrument is stored in the gingiva located on the surface layer of the alveolar bone, which is a missing tooth region of the alveolar bone provided on the mandible A jaw model for implant surgery practice characterized by being provided. An insulating tube corresponding to a mandibular canal is embedded in the alveolar bone and below the blood reservoir, and the cutting tool has a continuity detector that detects whether or not the cutting tool is in a conductive state. Provided,
The insulating tube has a tube main body and a conductive wire inserted into the tube main body. When the cutting tool cuts the tube main body and comes into contact with the conductive wire, the insulating detector is connected to the conductive detector. The jaw model for practicing implant surgery according to claim 1, wherein an alarm is issued for the implant surgery practice.   The jaw model for practicing implant surgery according to claim 2, wherein the tube main body of the insulating tube is filled with conductive pseudo blood.   The jaw model for practicing implant surgery according to any one of claims 1 to 3, wherein the blood reservoir and the insulating tube are provided with a blood supply device for continuously supplying simulated blood.   There is a blood reservoir in which pseudo blood that flows out to the outside is stored in the gingiva, which is a missing tooth region of the alveolar bone provided on the maxilla and is located in the surface layer of the alveolar bone. A jaw model for implant surgery practice characterized by being provided. A conduction layer is provided between the alveolar bone and the maxillary sinus, and the cutting tool is provided with a conduction detector for detecting whether or not the cutting tool is in a conduction state,
6. The jaw model for practicing implant surgery according to claim 5, wherein the continuity detector issues an alarm when the cutting tool is brought into a conductive state by contacting the conductive layer.   The jaw model for practicing implant surgery according to claim 6, wherein the blood reservoir is provided with a blood supply device that continuously supplies simulated blood.

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