CN113456280A - Intraoral sensing device and method for manufacturing same - Google Patents

Abstract

The invention provides an intraoral sensor which is easy to manufacture and excellent in safety in use, and a method for manufacturing the same. An intraoral sensor device provided in an oral cavity, comprising: an electronic device (2) having an electronic element mounted on a circuit board; a first dental resin material (3) covering the entire electronic device (2); a second dental resin material (4) covering the entire first dental resin material (3); and an oral appliance (1) having a first recess for housing an electronic device (2) covered with a first dental resin material (3) and a second dental resin material (4).

Description

Intraoral sensing device and method for manufacturing same

Technical Field

The invention relates to an intraoral sensing device and a method of manufacturing the same.

The present application claims priority based on Japanese application No. 2020-.

Background

Conventionally, an oral cavity sensing device that is installed in an oral cavity to obtain biological information has been put to practical use.

Conventionally, when an electronic device such as a living body monitoring sensor is mounted on an oral appliance, the electronic device is mounted on the oral appliance using a resin having adhesion to both the oral appliance and the electronic device. Here, there are the following problems: when an electronic device is to be taken out from an oral appliance due to, for example, recharging of a battery of the electronic device, the resin is firmly attached to the electronic device and is not removed, and if the electronic device is to be forcibly detached, the electronic device is damaged. As a means for solving this problem, a method of dissolving a resin for bonding an oral appliance and an electronic device with a solvent and taking out the electronic device is also conceivable. However, since a battery is mounted on an electronic device, it is also assumed that the electronic device is broken due to short-circuiting between circuit terminals by immersion in a solvent.

In order to solve such a problem, a means of covering the entire electronic device with a material of an oral appliance is also possible. For example, japanese patent application laid-open publication No. 2011-66080 describes a method for covering a package structure with a protective coating, which is a method for forming a protective coating having moisture resistance and insulation properties at least at a portion where moisture resistance and insulation properties are required of an electronic circuit board in which an electronic component is packaged, the method comprising: a first step of applying a first coating agent containing a resin to form a first coating film; and a second step of applying a second coating agent in which an additive for imparting a thickening property to the first coating agent is added, thereby forming a second coating film. In this case, since the electronic device and the oral appliance are not bonded, the possibility of damage when the electronic device is taken out is also low. However, in the case of this method, it is necessary to increase the thickness of the material of the oral appliance in terms of production, and for example, in the case of an orthodontic appliance, there is a problem that it becomes difficult to control the force applied to the dentition. Further, if the material of the oral appliance is cracked, moisture directly contacts the electronic device, and the electronic device is broken. For safety, it is necessary to provide the second means in advance so that leakage of electricity does not occur even if one means (in this case, the material of the orthodontic appliance) has a crack or the like. Since only one means is provided in the above method, there is a problem in safety. Further, since the dental resin material for fixing the oral appliance and the electronic device is a material which hardens by polymerizing a liquid and a liquid, there is a problem as follows: the viscosity of the liquid is low and the dental resin material runs off before hardening.

In order to solve such a problem, it is also conceivable to form the oral appliance 41 by sandwiching the electronic device 42 between two sealing films made of a thermoplastic polymer compound as shown in fig. 17.

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made in an effort to provide an intraoral sensor which is easy to manufacture and excellent in safety in use, and a method for manufacturing the same.

Means for solving the problems

An intraoral sensor device according to the present invention is an intraoral sensor device provided in an oral cavity, and includes: an electronic device having an electronic element mounted on a circuit board; a first dental resin material covering the entire electronic device; a second dental resin material covering the entire first dental resin material; and an oral appliance having a first recess for receiving the electronic device covered with the first dental resin material and the second dental resin material.

In a first aspect of the intraoral sensor device according to the present invention, the second dental resin material bonds the electronic device covered with the first dental resin material to the inside of the first recess.

In a second aspect of the intraoral sensor according to the present invention, the second dental resin material has one of the wide surfaces of the first dental resin material as a bottom surface, at least two or more corners of a surface facing the bottom surface have a thickness smaller than that of other portions, and the first recess has a first protrusion provided at a portion corresponding to a portion where the corner of the second dental resin material has a thickness smaller than that of other portions.

In a third aspect of the intraoral sensor according to the present invention, the second dental resin material is provided with second recesses on at least two or more surfaces of the second dental resin material corresponding to the side surfaces of the bottom surface, with one of the wide surfaces of the first dental resin material being the bottom surface, and the first protrusions are provided on the first recesses at positions corresponding to the second recesses on the side surfaces of the second dental resin material.

In a fourth aspect of the intraoral sensor according to the present invention, the second dental resin material is provided with second protrusions on at least two or more surfaces of the second dental resin material corresponding to the side surfaces of the bottom surface, with one of the wide surfaces of the first dental resin material being the bottom surface, and the first recesses are provided with recesses at positions corresponding to the second protrusions on the side surfaces of the second dental resin material.

A method of manufacturing an oral cavity sensing device according to a first embodiment of the present invention is a method of manufacturing an oral cavity sensing device as follows: preparing an electronic device having an electronic component mounted on a circuit board, covering the entire electronic device with a first dental resin material, preparing a dental model matching the teeth and gums of a user to whom the oral cavity sensor device is attached, placing the electronic device covered with the first dental resin material on the dental model, pressing the dental model against an oral appliance manufacturing material to mold the same, molding an oral appliance having a first recess for housing the electronic device covered with the first dental resin material, and detaching the oral appliance from the dental model in a state where the electronic device covered with the first dental resin material is housed in the first recess, so as to cover the entire first dental resin material and adhere to the inside of the first recess of the oral appliance, the electronic device that has been covered with the first dental resin material is covered with a second dental resin material.

A method of manufacturing an oral cavity sensing device according to a second embodiment of the present invention is a method of manufacturing an oral cavity sensing device as follows: preparing an electronic device having an electronic component mounted on a circuit board, covering the electronic device entirely with a first dental resin material, covering the electronic device covered with the first dental resin material with a second dental resin material, covering the entire first dental resin material, and using one of the wide surfaces of the first dental resin material as a bottom surface, the thickness of at least two corners of the surface facing the bottom surface being thinner than the thickness of the other portions, preparing a dental model matching the teeth and gums of a predetermined user to which the oral cavity sensor is attached, placing the electronic device covered with the first dental resin material and the second dental resin material in the dental model, pressing the dental model against an oral cavity appliance manufacturing material to perform compression molding, and housing a first dental resin material and a second dental resin material, the first dental resin material and the second dental resin material covering the electronic device, the first dental resin material and the second dental resin material covering the first dental resin material, the second dental resin material covering the electronic device, and the dental model being molded And a recessed oral appliance, wherein the oral appliance is detached from the dental mold in a state where the electronic device covered with the first dental resin material and the second dental resin material is accommodated in the first recess.

A method of manufacturing an oral cavity sensing device according to a third embodiment of the present invention is a method of manufacturing an oral cavity sensing device as follows: preparing an electronic device having an electronic component mounted on a circuit board, covering the electronic device entirely with a first dental resin material, covering the electronic device covered with the first dental resin material with a second dental resin material, covering the entire first dental resin material, and providing a second recess on at least two surfaces corresponding to side surfaces with respect to one of wide surfaces of the first dental resin material as a bottom surface, preparing a dental model matching teeth and gums of a predetermined user to which the oral cavity sensor device is attached, placing the electronic device covered with the first dental resin material and the second dental resin material on the dental model, pressing the dental model against an oral cavity appliance manufacturing material to perform compression molding, and providing a first recess for accommodating the electronic device covered with the first dental resin material and the second dental resin material And a recessed oral appliance, wherein the oral appliance is detached from the dental mold in a state where the electronic device covered with the first dental resin material and the second dental resin material is accommodated in the first recess.

A method of manufacturing an oral cavity sensing device according to a fourth embodiment of the present invention is a method of manufacturing an oral cavity sensing device as follows: preparing an electronic device having an electronic component mounted on a circuit board, covering the electronic device entirely with a first dental resin material, covering the electronic device covered with the first dental resin material with a second dental resin material, covering the entire first dental resin material, and providing a second protrusion on at least two surfaces corresponding to side surfaces of a bottom surface, with one of wide surfaces of the first dental resin material as a bottom surface, preparing a dental model matching teeth and gums of a predetermined user to which the oral cavity sensor device is attached, placing the electronic device covered with the first dental resin material and the second dental resin material on the dental model, pressing the dental model against an oral cavity appliance manufacturing material to perform compression molding, and providing a first recess for accommodating the electronic device covered with the first dental resin material and the second dental resin material And a recessed oral appliance, wherein the oral appliance is detached from the dental mold in a state where the electronic device covered with the first dental resin material and the second dental resin material is accommodated in the first recess.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, it is possible to provide an intraoral sensor which is easy to manufacture and excellent in safety in use, and a method for manufacturing the same.

Drawings

Fig. 1 is a sectional view of the oral cavity sensing device when the electronic apparatus 2 is attached to the oral cavity appliance 1.

Fig. 2 is a schematic diagram of the oral cavity sensing device when the electronic device 2 is attached to the oral cavity appliance 1.

Fig. 3 is a schematic diagram of another intraoral sensor device when the electronic device 2 is attached to the intraoral appliance 1.

Fig. 4 is a schematic diagram showing the shape of an electronic device covered with the second dental resin material 4 provided in the first recess of the oral appliance.

Fig. 5 is a cross-sectional view of a first recess when the electronic device 2 is set in the first recess of the oral appliance 1.

Fig. 6 is a sectional view showing a state where the electronic device 2 provided in the first recess of the oral appliance 1 is detached.

Fig. 7 is a schematic diagram showing another shape of the electronic device covered with the second dental resin material 4 provided in the first recess of the oral appliance.

Fig. 8 is another cross-sectional view of the first recess when the electronic device 2 is set in the first recess of the oral appliance 1.

Fig. 9 is a schematic diagram showing another shape of the electronic device covered with the second dental resin material 4 provided in the first recess of the oral appliance.

Fig. 10 is another cross-sectional view of the first recess when the electronic device 2 is set in the first recess of the oral appliance 1.

Fig. 11 is a schematic diagram showing another shape of the electronic device covered with the second dental resin material 4 provided in the first recess of the oral appliance.

Fig. 12 is a schematic diagram showing another shape of the electronic device covered with the second dental resin material 4 provided in the first recess of the oral appliance.

Fig. 13 is another cross-sectional view of the first recess when the electronic device 2 is set in the first recess of the oral appliance 1.

Fig. 14 is another cross-sectional view of the first recess when the electronic device 2 is set in the first recess of the oral appliance 1.

Figure 15 is a cross-sectional view of the intraoral sensing device when the electronic device 2 is mounted to the implanted denture 32.

Fig. 16 is a schematic block diagram showing a circuit configuration of the electronic device 2.

Fig. 17 is a sectional view of a conventional intraoral sensor device when an electronic device 42 is attached to an intraoral appliance 41.

Fig. 18 is a process flow diagram illustrating a method of manufacturing an intraoral sensing device.

Fig. 19 is a process flow diagram illustrating another method of manufacturing an intraoral sensing device.

Detailed Description

The present invention has the following advantageous features.

When the electronic device 2 is used in the oral cavity, since the first dental resin material 3 and the second dental resin material 4 are doubly covered, any one of the materials having a crack is protected by the other material, and thus safety to a human body is excellent. In particular, when the first dental resin material 3 is a silicone resin, the silicone resin does not adhere to the electronic device 2, and therefore the first dental resin material 3 can be easily peeled off from the electronic device 2, and the electronic device 2 can be reused without being damaged. Further, the first dental resin material 3 can be peeled off from the electronic device 2 and mounted on the electronic device 2 to replace the battery, which is useful particularly when the battery is a primary battery.

In a first embodiment of the present invention, as shown in fig. 1, an electronic device 2 entirely covered with a first dental resin material 3 is housed in a first recess of an oral appliance 1, a second dental resin material 4 is filled in a gap between the electronic device 2 entirely covered with the first dental resin material 3 and the first recess, and the electronic device 2 and the oral appliance 1 are bonded to each other with the second dental resin material 4. Fig. 2 and 3 are perspective views of the oral appliance 1. When the oral appliance is attached to the teeth and the gum, the electronic device 2 may be disposed inside the oral cavity (tongue side) as shown in fig. 2, or the electronic device 2 may be disposed outside the oral cavity (cheek side) as shown in fig. 3.

By adopting such a configuration, the use safety of the oral cavity sensing device is further excellent, and the manufacture of the oral cavity sensing device becomes easier.

In a second embodiment of the present invention, as shown in fig. 4, a second dental resin material 4 entirely covered with an electronic device covered with a first dental resin material is molded such that one of the wide surfaces of the first dental resin material is used as a bottom surface, and the thickness of at least two corners of a surface facing the bottom surface is thinner than the thickness of other portions, and as shown in fig. 5, first protrusions 1c are provided in first recesses of an oral appliance 1 at portions corresponding to portions where the thickness of the corners of the side surfaces of the second dental resin material 4 is thinner than the thickness of other portions.

By adopting such a configuration, as shown in fig. 6, the force applied to the oral appliance 1 when the oral appliance 1 is assembled/disassembled is not directly applied to the electronic apparatus 2, and the possibility of damage to the electronic apparatus 2 due to repeated assembly/disassembly is reduced. In particular, in the case of molding the oral appliance 1 by vacuum press molding, the first protrusion 1c can also be formed simultaneously with the formation of the first recess, and also the setting of the electronic device 2 is automatically performed, so that the operation efficiency is improved.

In a third embodiment of the present invention, as shown in fig. 7, second recesses are provided in at least two or more surfaces of a second dental resin material 4 covering an electronic device entirely covered with a first dental resin material, the surfaces corresponding to side surfaces of the bottom surface with respect to one of wide surfaces of the first dental resin material as a bottom surface, and as shown in fig. 8, first protrusions 1c are provided in the first recesses at positions corresponding to the second recesses in the side surfaces of the second dental resin material 4.

With such a configuration, the electronic device 2 can be more easily detached from the oral appliance 1 and the electronic device 2 can be more easily attached to the oral appliance 1 again. In particular, in the case of molding the oral appliance 1 by vacuum press molding, the first protrusion 1c can also be formed simultaneously with the formation of the first recess, and also the setting of the electronic device 2 is automatically performed, so that the operation efficiency is improved.

In a fourth embodiment of the present invention, as shown in fig. 9, second projections are provided on at least two or more surfaces of a second dental resin material 4 covering an electronic device entirely covered with a first dental resin material, the surfaces corresponding to side surfaces of the bottom surface with respect to one of wide surfaces of the first dental resin material as the bottom surface, and as shown in fig. 10, recesses 1d are provided in the first recesses at positions corresponding to the second projections on the side surfaces of the second dental resin material 4.

With such a configuration, the electronic device 2 can be more easily detached from the oral appliance 1 and the electronic device 2 can be more easily attached to the oral appliance 1 again. In particular, in the case of molding the oral appliance 1 by vacuum press molding, the recess 1d can be formed simultaneously with the formation of the first recess, and also the setting of the electronic device 2 is automatically performed, so that the operation efficiency is improved.

In the second and third embodiments of the present invention described above, as shown in fig. 11 or 12, the shape of the second dental resin material 4 is not limited to a substantially rectangular parallelepiped shape, and corners may be rounded or chamfered. Alternatively, as shown in fig. 13 or 14, the corner that meets the bottom of the first recess may be removed or rounded.

[ intraoral sensing device ]

The intraoral sensor is composed of an electronic device 2, an intraoral appliance 1, a first dental resin material 3, and a second dental resin material 4.

< electronic apparatus >

As shown in fig. 16, the electronic device 2 is configured by a wireless module unit 23 incorporating a wireless transmission/reception unit 26, a signal processing unit 24, and a memory 25, a sensor 22, and a battery 21, and is entirely covered with a first dental resin material in a state of being mounted on a circuit board.

The electronic device 2 is composed of a wireless module 23 in which a wireless transceiver 26, a signal processor 24, and a memory 25 are combined, a sensor 22, and a battery 21, and is embedded in an orthodontic appliance, a dental prosthesis, or an implant.

The wireless transceiver 26 has a function of transmitting digital data sensed in the oral cavity to the network connector 27 outside the oral cavity or receiving a command transmitted from the network connector 27 to the electronic device 2.

The signal processing unit 24 is composed of a microcomputer and an AD converter, and has a function of converting the sensing data transmitted from the sensor 22 into digital data and storing the digital data in the memory 25, a function of converting the digital data stored in the memory 25 into transmittable data, and a function of interpreting a command transmitted from the network connector 27 and controlling the operations of the sensor 22 and the wireless transmission/reception unit 26.

The sensor 22 is configured by at least one selected from the group consisting of a temperature sensor, an acceleration sensor, a gyroscope sensor, a pressure sensor, a strain sensor, a pulse sensor for measuring a pulse using light, a pulse oximeter for measuring a blood oxygen concentration using light, a heart rate sensor for measuring a heart rate using light, and a laser sensor for measuring a blood flow using laser, and acquires various physical information and biological information.

The battery 21 is composed of a primary battery or a secondary battery, and supplies electric power to the wireless transmission/reception unit 26, the signal processing unit 24, the memory 25, and the sensor 22.

These circuit blocks are packaged with a battery 21, a sensor 22, a signal processing unit 24, a wireless transmission/reception unit 26, and a memory 25 on a thin circuit substrate or a flexible substrate. Generally, the radio transmitting/receiving unit 26, the signal processing unit 24, and the memory 25 are often provided by an integrated chip. In the electronic device 2, the battery 21, the sensor 22, the signal processing unit 24, the memory 25, and the wireless transmission/reception unit 26 are mounted on a thin circuit board or a flexible board.

The electronic device 2 is covered with the first dental resin material 3, and further covered with the second dental resin material 4, and is provided in an oral appliance, whereby intrusion of water into the electronic device 2 can be prevented. Even if the second dental resin material 4 cracks, the electronic device 2 is covered with the soft first dental resin material 3, thereby ensuring double safety.

The wireless module unit 23 mounted on the electronic device 2 does not necessarily have to wirelessly exchange data with the outside, and may be an electronic device that performs data exchange using a wire. However, in the case of an electronic device that performs data exchange by wire, it is necessary to waterproof a connector portion that connects the electronic device 2 and the network connector 27. The connector portion is provided with a mechanism such as a cap, which is opened when data is read and closed when the connector portion is set in the oral cavity. Therefore, the scheme of wirelessly transmitting and receiving data has an advantage that a waterproof structure is simply accomplished.

By using a temperature sensor for the sensor 22, not only the time for fitting the oral appliance can be measured to be actually used for the oral correction treatment, but also the daily body temperature change can be monitored.

By using the acceleration sensor/gyro sensor as the sensor 22, it is possible to count not only the number of chewing times but also the number of steps, the amount of activity, the jaw movement, and the teeth grinding (bruxism) at night.

By using a pressure sensor/strain sensor for the sensor 22, not only the force applied to the tooth or denture, implant, but also the force applied to the tooth by the oral appliance, or the molars (molars) at night, the bite force, the number of chews, and the time for fitting the oral appliance can be measured.

< oral Instrument >

Examples of the oral appliance 1 include an orthotic device, a denture, and an implant.

In the case of the orthodontic appliance, the oral appliance 1 is preferably formed of a thermoplastic polymer compound, and more preferably formed of any one thermoplastic polymer compound selected from the group consisting of polyethylene-based materials, polyurethane-based materials, and propylene-based resins.

In the case of mounting the electronic apparatus to an oral appliance, as shown in fig. 1 to 3, the oral appliance preferably presses an oral appliance manufacturing material to a dental mold matching teeth and gums of a predetermined user mounting the oral sensing device, and performs press molding, or is molded into a dental mold/gum mold shape by a 3D printer, and more preferably is pressed to a dental mold matching teeth and gums of a predetermined user mounting the oral sensing device, and performs press molding.

The material for producing an oral appliance is preferably a sheet or film of the thermoplastic polymer compound.

A recess is provided in a part of the oral appliance 1, and the electronic device 2 is provided in the recess. The place where the electronic device 2 is installed may be either a position corresponding to the side wall of the crown portion or a position corresponding to the gum, but if the engagement of the upper and lower teeth is considered, it is preferably installed at a position corresponding to the gum as shown in fig. 1. In addition, in the case of a pulse sensor for measuring a pulse using light, a pulse oximeter for measuring a blood oxygen concentration using light, a heart rate sensor for measuring a heart rate using light, or a laser sensor for measuring a blood flow using laser, information is obtained from a blood vessel of a gum, and thus, it is preferably installed at a position corresponding to the gum.

Further, in the case of mounting the above-described sensor using light or laser light, since light transmission is essential, the oral appliance 1 is made of a material capable of transmitting light having an arbitrary wavelength in the range of 400 to 1000 nm.

In a first specific embodiment, as shown in fig. 1, the electronic device 2 is covered with the first dental resin material 3 over the entire periphery thereof, and further covered with the second dental resin material 4 over the entire periphery of the first dental resin material 3, and the second dental resin material 4 is filled in the recess of the oral appliance 1 to bond the oral appliance 1 and the electronic device 2.

In a second specific embodiment, the following configuration is adopted: as shown in fig. 4, the thickness of the second dental resin material 4 is such that one of the wide surfaces of the first dental resin material is a bottom surface, and the thickness of at least two corners of the surface facing the bottom surface is thinner than the thickness of the other portions. Further, as shown in fig. 5, since the electronic device is fixed by the portion of the second dental resin material 4 where the thickness of the corner is thinner than the thickness of the other portion and the first protrusion 1c of the oral cavity appliance 1, even if a large force is applied to the oral cavity appliance 1, the force is not directly applied to the electronic device 2. Therefore, it is possible to avoid a problem that the electronic apparatus 2 is damaged by a force applied to the electronic apparatus 2 at the time of assembly/disassembly of the oral appliance 1. In addition, when the thin portions of the corners of the second dental resin material 4 are formed only at one place, the probability of the electronic device 2 falling off is very high, which is not preferable. By forming at least two corners, as many as possible, the oral appliance 1 does not fall off even when it is assembled/disassembled. Fig. 6 is a schematic diagram showing a state when the electronic device 2 covered with the first dental resin material 3 and the second dental resin material 4 is detached from the oral appliance 1. When the electronic device 2 is taken out in the direction of the arrow, the first protrusion 1c of the oral appliance 1 is deformed, and therefore the electronic device 2 covered with the first dental resin material 3 and the second dental resin material 4 can be easily taken out from the oral appliance 1.

In a third specific embodiment, the following configuration is adopted: as shown in fig. 7, the second dental resin material 4 has second recesses 4g formed in at least two or more surfaces corresponding to the side surfaces of the bottom surface with one of the wide surfaces of the first dental resin material being the bottom surface. Further, as shown in fig. 8, the electronic device 2 is fixed by the second recess 4g formed in the side surface of the second dental resin material 4 and the first protrusion 1c of the oral appliance, so even if a large force is applied to the oral appliance 1, the force is not directly applied to the electronic device 2. Therefore, it is possible to avoid a problem that the electronic apparatus 2 is damaged by a force applied to the electronic apparatus 2 at the time of assembly/disassembly of the oral appliance 1. In addition, in the case where the second recess 4g is formed only on one of the side surfaces, the probability of the electronic device 2 falling off is very high, which is not preferable. By forming the second recesses 4g on at least two of the side surfaces, four surfaces are possible, so that the second recesses do not fall off even when the oral appliance 1 is attached/detached. The second recess 4g is preferably parallel with respect to the bottom surface.

In a fourth specific embodiment, the following configuration is adopted: as shown in fig. 9, the second dental resin material 4 is provided with second protrusions 4h on at least two or more surfaces corresponding to the side surfaces of the bottom surface with one of the wide surfaces of the first dental resin material being the bottom surface. Further, as shown in fig. 10, the electronic device 2 is fixed by the second protrusion 4h formed on the side surface of the second dental resin material 4 and the recess 1d of the oral appliance, and thus even if a large force is applied to the oral appliance 1, the force is not directly applied to the electronic device 2. Therefore, it is possible to avoid a problem that the electronic apparatus 2 is damaged by a force applied to the electronic apparatus 2 at the time of assembly/disassembly of the oral appliance 1. In addition, in the case where the second protrusion 4h is formed only on one surface of the side surface, the probability of falling off is very high, which is not preferable. By forming the second protrusions 4h on at least two of the side surfaces, four surfaces are possible, so that the second protrusions do not fall off even when the oral appliance 1 is attached/detached. The second protrusions 4h are preferably parallel with respect to the bottom surface.

In the case of the second embodiment (fig. 4), the third embodiment (fig. 7) or the fourth embodiment (fig. 9), the oral appliance 1 is preferably made of a thermoplastic polymer such as a polyethylene-based material, a polyurethane-based material or an acrylic resin, and is preferably produced by a method of molding the oral appliance onto a tooth mold formed of plaster or a 3D printer. When the electronic device 2 covered with the second dental resin material 4 shown in fig. 4, 7 or 9 is placed on a site on the dental mold where the electronic device 2 is to be placed, and a sheet or film of a thermoplastic polymer compound is molded by vacuum molding, the thermoplastic polymer compound enters the thin-thickness portion of the corner or the first recess, and the first protrusion 1c of the oral appliance 1 shown in fig. 5 or 8 or the recess 1d of the oral appliance 1 shown in fig. 10 can be automatically formed.

When the oral appliance 1 is produced by a 3D printer, it is necessary to set the electronic device 2 in the first recess of the oral appliance 1 thereafter, but when the electronic device 2 having the shape shown in fig. 4, 7, or 9 is vacuum-molded, the manual work for setting is eliminated, and the efficiency of the operation is improved.

The position at which the electronic device 2 is attached to the oral appliance 1 may be either the upper jaw or the lower jaw, or may be either the inside (lingual side) or the outside (buccal side) of the oral cavity.

In the case where the electronic device 2 is mounted to a dental prosthesis or an implant, as shown in fig. 15, the electronic device 2 is preferably disposed in a dental prosthesis (an implant dental prosthesis 32). In fig. 15, an example of an implant buried into an alveolar bone 34 is shown, but the same is true in the case of a dental prosthesis. The electronic device 2 is preferably doubly covered with the first dental resin material 3 and the second dental resin material 4, and is disposed inside the artificial tooth or the implanted artificial tooth 32.

In the case of a pulse sensor that measures a pulse using light, a pulse oximeter that measures blood oxygen concentration using light, a heart rate sensor that measures a heart rate using light, or a laser sensor that measures blood flow using laser, the electronic device 2 is preferably provided at a position corresponding to the gum 33 because information is obtained from blood vessels of the gum. Further, in the case of mounting the above-described sensor using light or laser light, a part of the denture or the implanted denture is made of a material capable of transmitting light having any wavelength of 400 to 1000nm for light transmission.

< first dental resin Material >

The first dental resin material 3 is, for example, a material obtained by adding butyl phthalate as a plasticizer to a silicone resin or methacrylate containing polydimethylsiloxane as a main component and polymerizing and hardening the mixture. As the silicone resin, a condensation type silicone rubber or an addition type silicone rubber is exemplified. The first dental resin material 3 is not limited to the above-described material, and other plastics and the like can be used. As the first dental resin material 3, silicone resin is preferable.

The silicone resin is weak in adhesion to the electronic device 2, and therefore can be easily removed. Therefore, in the case where the electronic apparatus 2 is used at will, cleanliness is always maintained by newly replacing the silicone resin. Further, since the second dental resin material 4 described later has a weak adhesion force to the silicone resin, the electronic device 2 can be easily peeled off from the oral appliance 1 when the electronic device 2 is used as it is.

< second dental resin Material >

The second dental resin material 4 is, for example, a material obtained by polymerizing and hardening methyl methacrylate and polymethyl methacrylate, and a material obtained by polymerizing and hardening polymethyl methacrylate, 4-methacryloyloxyethyl trimellitic anhydride, and tri-n-butyl borane, which is mainly composed of 2, 2-bis (4- (3-methacryloyloxy-2-hydroxypropoxy) phenyl) propane, ethyl dimethacrylate, and triethylene glycol dimethacrylate, is a polyethylene resin, a polyurethane resin, or an acrylic resin. The second dental resin material 4 is not limited to the above-described material, and other plastics and the like can be used. The second dental resin material 4 is preferably a material that is capable of polymerization-hardening methyl methacrylate and polymethyl methacrylate because it has good coverage for covering the electronic device 2 and can prevent moisture from entering the device.

Since the dental resin material obtained by polymerizing and hardening methyl methacrylate and polymethyl methacrylate or polymethyl methacrylate, 4-methacryloyloxyethyl trimellitic anhydride, or tri-n-butylborane is a type of resin material obtained by polymerizing and hardening liquid or powder, the dental resin material does not run off and can fill the gap between the electronic device 2 and the oral appliance. The order of polymerization is that the liquid is first dipped into the pen or hand, after which the powder is dipped into the pen or hand. This increases the viscosity of the dental resin material, and allows the dental resin material to be filled into the gap between the electronic device 2 and the oral appliance.

The second dental resin material 4 is softer than the first dental resin material 3, and has a higher adhesion force to the oral appliance 1, and thus the electronic device 2 can be fixed to the oral appliance 1 with a high holding force. The first dental resin material 3 is harder than the second dental resin material 4, and is suitable for protecting the electronic device 2 from external forces.

[ method for manufacturing an intraoral sensor ]

The intraoral sensor device according to the first embodiment of the present invention can be manufactured by: for example, as shown in fig. 18, an electronic device 2 having electronic components mounted on a circuit board is prepared, the electronic device 2 is entirely covered with a first dental resin material 3, a dental model matching the teeth and gums of a user who is to be provided with the oral cavity sensor device is prepared, the electronic device 2 covered with the first dental resin material 3 is placed on the dental model, the dental model is pressed against an oral cavity appliance manufacturing material and molded, the oral cavity appliance 1 having a first recess for accommodating the electronic device 2 covered with the first dental resin material 3 is molded, the oral cavity appliance 1 is detached from the dental model in a state where the electronic device 2 covered with the first dental resin material 3 is accommodated in the first recess, the entire first dental resin material 3 is covered, and the electronic device is bonded to the inside of the first recess of the oral cavity appliance 1, the electronic device 2 that has been covered with the first dental resin material 3 is covered with the second dental resin material 4.

The intraoral sensor device according to the second embodiment of the present invention can be manufactured by: for example, as shown in fig. 19, an electronic device 2 having electronic components mounted on a circuit board is prepared, the electronic device 2 is entirely covered with a first dental resin material 3, the electronic device 2 covered with the first dental resin material 3 is covered with a second dental resin material 4, the entire first dental resin material 3 is covered, one of the wide surfaces of the first dental resin material 3 is used as a bottom surface, the thickness of at least two corners of the surface facing the bottom surface is thinner than the thickness of the other portions, a dental model matching the teeth and gums of a predetermined user to which the oral cavity sensor device is to be attached is prepared, the electronic device 2 covered with the first dental resin material 3 and the second dental resin material 4 is placed in the dental model, the dental model is pressed against an oral cavity appliance manufacturing material to be molded, and the first dental model having the electronic device 2 covered with the first dental resin material 3 and the second dental resin material 4 is housed in the electronic device 2 The recessed oral cavity appliance 1 is molded, and the oral cavity appliance 1 is detached from the tooth mold in a state where the electronic device 2 covered with the first dental resin material 3 and the second dental resin material 4 is accommodated in the first recess.

The intraoral sensor device according to the third embodiment of the present invention can be manufactured by: for example, as shown in fig. 19, an electronic device 2 having electronic components mounted on a circuit board is prepared, the electronic device 2 is entirely covered with a first dental resin material 3, the electronic device 2 covered with the first dental resin material 3 is covered with a second dental resin material 4, the entire first dental resin material 3 is covered, one of the wide surfaces of the first dental resin material 3 is used as a bottom surface, second recesses are provided on at least two surfaces corresponding to the side surfaces with respect to the bottom surface, a dental model matching the teeth and gums of a predetermined user to which the oral cavity sensing device is attached is prepared, the electronic device 2 covered with the first dental resin material 3 and the second dental resin material 4 is placed on the dental model, the dental model is pressed against an oral cavity instrument manufacturing material to be molded, and the electronic device 2 having the first recesses for accommodating the electronic device 2 covered with the first dental resin material 3 and the second dental resin material 4 is molded The oral cavity appliance 1 in (1) is molded, and the oral cavity appliance 1 is detached from the tooth mold in a state where the electronic device 2 covered with the first dental resin material 3 and the second dental resin material 4 is accommodated in the first recess. The aforementioned second recess is preferably disposed in parallel with respect to the bottom surface.

An intraoral sensor device according to a fourth embodiment of the present invention can be manufactured by: for example, as shown in fig. 19, an electronic device 2 having electronic components mounted on a circuit board is prepared, the electronic device 2 is entirely covered with a first dental resin material 3, the electronic device 2 covered with the first dental resin material 3 is covered with a second dental resin material 4 so as to cover the entire first dental resin material 3, one of the wide surfaces of the first dental resin material 3 is used as a bottom surface, second protrusions are provided on at least two surfaces corresponding to the bottom surface and the side surfaces, a dental model matching the teeth and gums of a predetermined user to which the oral cavity sensing device is attached is prepared, the electronic device 2 covered with the first dental resin material 3 and the second dental resin material 4 is placed on the dental model, the dental model is pressed against an oral cavity instrument manufacturing material to be molded, and a first recess having the electronic device 2 covered with the first dental resin material 3 and the second dental resin material 4 is accommodated therein is prepared The oral cavity appliance 1 in (1) is molded, and the oral cavity appliance 1 is detached from the tooth mold in a state where the electronic device 2 covered with the first dental resin material 3 and the second dental resin material 4 is accommodated in the first recess. The aforementioned second protrusion is preferably disposed in parallel with respect to the bottom surface.

The oral cavity appliance 1, the electronic device 2, the first dental resin material 3, and the second dental resin material 4 are the same as those described in the description of the oral cavity sensing device of the present invention, and preferred embodiments thereof are also the same.

[ Effect ]

In the oral cavity sensing device of the present invention, since the electronic device 2 is entirely covered with the first dental resin material 3, the first dental resin material 3 does not peel off during use even if the adhesion force between the electronic device 2 and the first dental resin material 3 is very weak.

By using a silicone resin as the first dental resin material 3, even when the electronic device 2 is reused during charging or the like, the silicone resin is easily peeled off from the oral appliance 1, and the silicone resin is completely peeled off, so that the electronic device 2 is not destroyed and can be easily reused.

In the case of reusing the article put into the oral cavity, a sufficient sterilization operation is required, but in the oral cavity sensing device of the present invention, since the silicone resin is used up and discarded once, the electronic device 2 is easy to clean.

When the electronic device 2 is used in the oral cavity, the first dental resin material 3 and the second dental resin material 4 cover the electronic device 2, and thus the waterproof property of the electronic device 2 is improved.

When the electronic device 2 is used in the oral cavity, since the first dental resin material 3 and the second dental resin material 4 cover each other, any crack is protected by the other material, and safety to the human body is ensured.

In the oral cavity sensing device of the present invention, the electronic device 2 is mounted on the oral cavity appliance 1 by recessing a part thereof, and thus the manufacturing process is simple.

Since a part of the oral appliance 1 is recessed and the electronic device 2 is mounted thereon, the thickness of the material of the oral appliance 1 can be reduced, and for example, in the case where the oral appliance 1 is an orthodontic device, the force applied to the dentition can be finely controlled.

Since the second dental resin material 4 for mounting the electronic device 2 to the oral cavity appliance 1 is a material that causes polymerization and hardening of liquid and powder, the second dental resin material 4 does not run off. Therefore, when the first dental resin material 3 is covered with the second dental resin material 4, a brush method of first impregnating a pen with a liquid material and then applying a powder to the pen to be applied to the periphery of the first dental resin material 3, or a scattering method of alternately scattering the liquid material and the powder can be used.

In the second embodiment, the electronic device 2 is fixed by the first protrusion 1c of the oral appliance 1 and the portion of the corner having a thickness smaller than the thickness of the other portion via the second dental resin material 4, and therefore, even if a large force is applied to the oral appliance, the force is not directly applied to the electronic device 2. Therefore, it is possible to avoid a problem that the electronic apparatus 2 is damaged by a force applied to the electronic apparatus 2 at the time of assembly/disassembly of the oral appliance 1.

In the third specific embodiment, the electronic device 2 is fixed by the second recess of the second dental resin material 4 and the first protrusion 1c of the oral appliance 1 via the second dental resin material 4, and thus even if a large force is applied to the oral appliance 1, the force is not directly applied to the electronic device 2. Therefore, it is possible to avoid a problem that the electronic apparatus 2 is damaged by a force applied to the electronic apparatus 2 at the time of assembly/disassembly of the oral appliance 1. If a part of the oral appliance 1 is recessed by a method of molding the oral appliance 1 by vacuum molding and the electronic device 2 is mounted by a structure in which the first protrusion 1c is provided, the first protrusion 1c can be automatically formed and the electronic device 2 can be automatically set, so that the operation efficiency is improved.

In the fourth embodiment, the electronic device 2 is fixed by the second protrusion of the second dental resin material 4 and the depression 1d of the oral appliance 1 via the second dental resin material 4, and thus even if a large force is applied to the oral appliance 1, the force is not directly applied to the electronic device 2. Therefore, it is possible to avoid a problem that the electronic apparatus 2 is damaged by a force applied to the electronic apparatus 2 at the time of assembly/disassembly of the oral appliance 1. If a part of the oral appliance 1 is recessed by a method of molding the oral appliance 1 by vacuum molding and the electronic device 2 is mounted by a structure in which the recess 1d is provided, the recess 1d can be automatically formed and the setting of the electronic device 2 can be automatically performed, so that the operation efficiency is improved.

By providing the wireless transmission/reception unit 26 in the electronic device 2, the sensed information can be easily taken out to the outside.

By using the temperature sensor for the sensor 22, not only the time for assembling the oral appliance 1 can be measured to be actually applied to the oral cavity correction treatment, but also the daily body temperature change can be monitored.

By using the acceleration sensor/gyro sensor for the sensor 22, not only the number of times of chewing but also one or more measurements selected from the group consisting of step count measurement, activity amount measurement, jaw movement measurement, and nighttime molars (molars) can be performed.

By using a pressure sensor/strain sensor for the sensor 22, not only the force applied to the tooth or the denture or the implant can be measured, but also one or more measurements selected from the group consisting of measurement of the force applied to the tooth by the oral appliance 1 or measurement of the bruxism (bruxism) at night, measurement of the occlusal force, the number of chewing times, and the time of fitting the oral appliance can be performed.

Further, the "silicone resin" in the specification of Japanese patent application No. 2020-044440 means the "silicone resin" in the specification of the present application.

Description of the symbols

1 … … oral appliance, 1c … … first protrusion, 1d … … recess, 2 … … electronic device, 3 … … first dental resin material, 4 … … second dental resin material, 4g … … second recess, 4h … … second protrusion, 5 … … tooth, 21 … … battery, 22 … … sensor, 23 … … wireless module part, 24 … … signal processing part, 25 … … memory, 26 … … wireless transceiver part, 27 … … network connector, 31 … … implant, 32 … … implant, 33 … … gingiva, 34 … … alveolar bone, 41 … … oral appliance, 42 … … electronic device.

Claims (24)

1. An intraoral sensor device, which is a sensor device provided in an oral cavity, comprising:

an electronic device having an electronic element mounted on a circuit board;

a first dental resin material covering the entirety of the electronic device;

a second dental resin material covering the entire first dental resin material; and

an oral appliance having a first recess for receiving the electronic device covered with the first and second dental resin materials.

2. The intra-oral sensing device according to claim 1, wherein the second dental resin material bonds the electronic equipment covered with the first dental resin material to an inner side of the first recess.

3. The intraoral sensor according to claim 1, wherein the second dental resin material has one of the wide surfaces of the first dental resin material as a bottom surface, and wherein at least two corners of a surface facing the bottom surface have a thickness smaller than the thickness of the other portions, and wherein a first protrusion is provided in a portion of the first recess corresponding to a portion where the corner of the second dental resin material has a thickness smaller than the thickness of the other portions.

4. The intraoral sensor according to claim 1, wherein a second recess is provided in at least two or more surfaces of the second dental resin material corresponding to a side surface of the bottom surface, with one of the wide surfaces of the first dental resin material being a bottom surface, and wherein a first protrusion is provided in a portion of the first recess corresponding to the second recess in the side surface of the second dental resin material.

5. The intraoral sensing device of claim 4 wherein said second recess is parallel relative to said bottom surface.

6. The intraoral sensor according to claim 1, wherein the second dental resin material has second protrusions on at least two or more surfaces of the second dental resin material corresponding to side surfaces of the bottom surface, with one of the wide surfaces of the first dental resin material being a bottom surface, and wherein a recess is provided in a portion of the first recess corresponding to the second protrusion on the side surface of the second dental resin material.

7. The intraoral sensing device of claim 6 wherein said second protrusion is parallel relative to said bottom surface.

8. The intraoral sensing device according to any one of claims 1 to 7, wherein the intraoral appliance is formed of a thermoplastic polymer compound.

9. The intra-oral sensing device according to any one of claims 1 to 7, wherein the first dental resin material is a material containing polydimethylsiloxane as a main component.

10. The intra-oral sensing device according to any one of claims 1 to 7, wherein the first dental resin material is a material in which butyl phthalate is added as a plasticizer to methacrylate and polymerization-hardened.

11. The intra-oral sensing device according to any one of claims 1 to 7, wherein the second dental resin material is a material that polymerizes and hardens methyl methacrylate and polymethyl methacrylate.

12. The intra-oral sensing device according to any one of claims 1 to 7, wherein the second dental resin material is a material containing at least one selected from the group consisting of 2, 2-bis (4- (3-methacryloxy-2-hydroxypropoxy) phenyl) propane, urethane dimethacrylate, and triethylene glycol dimethacrylate as a main component.

13. The intra-oral sensing device according to any one of claims 1 to 3, wherein the second dental resin material is a material that polymerization-hardens polymethyl methacrylate, 4-methacryloyloxyethyl trimellitic anhydride, and tri-n-butylborane.

14. The intra-oral sensing device according to any one of claims 11 to 13, wherein the second dental resin material is capable of performing a brush method in which a liquid material is initially infiltrated into a pen and then a powder is applied around the first dental resin material by being dipped into the pen.

15. The intra-oral sensing device according to any one of claims 11 to 13, wherein the second dental resin material is capable of a spreading method of alternately scattering a liquid material and a powder.

16. The intra-oral sensing device according to any one of claims 1 to 7, wherein the second dental resin material is any one selected from the group consisting of a polyethylene-based resin, a polyurethane-based resin, and an acrylic-based resin.

17. The intraoral sensing device according to any one of claims 1 to 16, wherein the electronic apparatus has:

a sensor that senses biological information;

a battery that supplies power to the sensor;

a signal processing unit configured to receive power supply from the battery and generate digital data based on an output signal from the sensor;

a memory to store the digital data; and

and a wireless transceiver unit that receives power supply from the battery and transmits the digital data stored in the memory to a network connector in accordance with a signal transmitted from the network connector.

18. The intra-oral sensing device of claim 17, wherein the sensor is comprised of at least one selected from the group consisting of a temperature sensor, an acceleration sensor, a gyroscope sensor, a pressure sensor, a strain sensor, a pulse sensor using light to measure a pulse, a pulse oximeter using light to measure blood oxygen concentration, a heart rate sensor using light to measure a heart rate, and a laser sensor using laser to measure blood flow.

19. The intraoral sensing device of any of claims 1-18 wherein the intraoral appliance is an orthotic device, a denture, or an implant.

20. The intraoral sensing device according to any of claims 1 to 19 wherein the intraoral appliance is formed of a material that is transparent to light of any wavelength in the range of wavelengths 400 to 1000 nm.

21. A method for manufacturing an intraoral sensor device according to claim 2,

an electronic device having a circuit board on which electronic components are mounted is prepared,

the electronic device is entirely covered with the first dental resin material,

preparing a dental model to be matched with teeth and gums of an intended user equipped with the intraoral sensing device,

placing the electronic device covered with the first dental resin material on the tooth mold,

pressing the tooth mold against an oral appliance manufacturing material to mold the tooth mold, and molding an oral appliance having a first recess for housing the electronic device covered with the first dental resin material,

detaching the oral appliance from the tooth mold in a state where the electronic device covered with the first dental resin material is accommodated in the first recess,

the electronic device covered with the first dental resin material is covered with a second dental resin material so as to cover the entire first dental resin material and to be bonded to the inside of the first recess of the oral appliance.

22. A method for manufacturing an intraoral sensor device according to claim 3,

an electronic device having a circuit board on which electronic components are mounted is prepared,

the electronic device is entirely covered with the first dental resin material,

covering the electronic device covered with the first dental resin material with a second dental resin material so as to cover the entire first dental resin material, and further, with one of the wide surfaces of the first dental resin material as a bottom surface, the thickness of at least two or more corners of the surface opposed to the bottom surface being thinner than the thickness of the other portions,

preparing a dental model to be matched with teeth and gums of an intended user equipped with the intraoral sensing device,

placing the electronic device covered with the first dental resin material and the second dental resin material on the tooth mold,

pressing the tooth mold against an oral appliance manufacturing material to mold the tooth mold, and molding an oral appliance having a first recess for housing the electronic device covered with the first dental resin material and the second dental resin material,

detaching the oral appliance from the dental mold in a state where the electronic device covered with the first dental resin material and the second dental resin material is accommodated in the first recess.

23. A method for manufacturing an intraoral sensor device according to claim 4,

an electronic device having a circuit board on which electronic components are mounted is prepared,

the electronic device is entirely covered with the first dental resin material,

covering the electronic device covered with the first dental resin material with a second dental resin material so as to cover the entire first dental resin material, and further providing second recesses on at least two or more surfaces corresponding to side surfaces with respect to a bottom surface, with one of wide surfaces of the first dental resin material being a bottom surface,

preparing a dental model to be matched with teeth and gums of an intended user equipped with the intraoral sensing device,

placing the electronic device covered with the first dental resin material and the second dental resin material on the tooth mold,

pressing the tooth mold against an oral appliance manufacturing material to mold the tooth mold, and molding an oral appliance having a first recess for housing the electronic device covered with the first dental resin material and the second dental resin material,

detaching the oral appliance from the dental mold in a state where the electronic device covered with the first dental resin material and the second dental resin material is accommodated in the first recess.

24. A method for manufacturing an intraoral sensor device according to claim 6,

an electronic device having a circuit board on which electronic components are mounted is prepared,

the electronic device is entirely covered with the first dental resin material,

covering the electronic device covered with the first dental resin material with a second dental resin material so as to cover the entire first dental resin material, and providing at least two surfaces corresponding to side surfaces with respect to a bottom surface, with one of wide surfaces of the first dental resin material being a bottom surface,

preparing a dental model to be matched with teeth and gums of an intended user equipped with the intraoral sensing device,

placing the electronic device covered with the first dental resin material and the second dental resin material on the tooth mold,

pressing the tooth mold against an oral appliance manufacturing material to mold the tooth mold, and molding an oral appliance having a first recess for housing the electronic device covered with the first dental resin material and the second dental resin material,

detaching the oral appliance from the dental mold in a state where the electronic device covered with the first dental resin material and the second dental resin material is accommodated in the first recess.

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