CN209091406U - A kind of dental articulation force measuring device based on surface acoustic wave sensor - Google Patents
A kind of dental articulation force measuring device based on surface acoustic wave sensor Download PDFInfo
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- CN209091406U CN209091406U CN201820457801.4U CN201820457801U CN209091406U CN 209091406 U CN209091406 U CN 209091406U CN 201820457801 U CN201820457801 U CN 201820457801U CN 209091406 U CN209091406 U CN 209091406U
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- acoustic wave
- surface acoustic
- wave sensor
- force
- dental articulation
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Abstract
The utility model relates to a kind of dental articulation force measuring device based on surface acoustic wave sensor, described device includes fixing end interconnected and occlusion measurement end, the occlusion measurement end includes multiple surface acoustic wave sensing modules, and the position of the surface acoustic wave sensing module matches with dental articulation position to be measured.Compared with prior art, the utility model have many advantages, such as measurement accuracy it is high, can passive and wireless, safe and harmless, good portability, capable of washing reuse, be at low cost.
Description
Technical field
The utility model relates to surface acoustic wave fields, more particularly, to a kind of dental articulation based on surface acoustic wave sensor
Force measuring device.
Background technique
Dental articulation power is related with many diseases, such as odentoschim, vertical root fractures, periodontitis dental disease, and each
The maximum biting force of tooth is also a kind of performance of periodontium tolerance, and measurement dental articulation power may determine that periodontium
Physiology and pathological condition, and in tooth treatment and after repairing, judge whether tooth restores masticatory function, therefore dental articulation power
Size often by the reference index as oral cavity masticatory function recovery situation.
For the prior art, for example photosynthetic bite film and photosynthetic occlusion instrument, can carry out sxemiquantitative to occlusal contact condition
Analysis, but be difficult to that occlusal contact condition is accurately positioned；Resistance-strain type measuring instrument is generated by resistance strain gage in stress
Corresponding strain causes resistance value to change, thus obtain measured force value, but thickness is larger, interferes stronger；Piezoelectricity
Diaphragm type measuring instrument, in stress, upper and lower surface generates that charge signal is amplified measures voltage, so that force value is measured, but this
Film be it is disposable, testing cost is excessively high.Therefore it is badly in need of the dental articulation that a kind of measurement accuracy is high and can be recycled
The measuring device of power.
Utility model content
The purpose of this utility model is to provide a kind of dental articulation power based on surface acoustic wave sensor regarding to the issue above
Measuring device.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of dental articulation force measuring device based on surface acoustic wave sensor, described device include fixation interconnected
End and occlusion measurement end, the occlusion measurement end includes multiple surface acoustic wave sensing modules, the surface acoustic wave sensing module
Position matches with dental articulation position to be measured.
Preferably, the surface acoustic wave sensing module includes the surface acoustic wave sensory package of 2 mutually opposing connections.
Preferably, the surface acoustic wave sensory package includes surface acoustic wave sensor, force-transmitting pole and peripheral protection element, institute
It states force-transmitting pole to be set on surface acoustic wave sensor, the periphery protection element connects with force-transmitting pole and surface acoustic wave sensor respectively
It connects.
Preferably, the surface acoustic wave sensor includes piezoelectric material substrate, interdigital transduction assembly and antenna chip, described
Force-transmitting pole, interdigital transduction assembly and antenna chip are both secured on piezoelectric material substrate.
Preferably, the interdigital transduction assembly includes interdigital transducer and reflecting grating, the interdigital transducer and reflecting grating
It is respectively arranged at the both ends of piezoelectric material substrate.
Preferably, the peripheral protection element includes flexible material film and substrate support column, and the substrate support column is equal
The even apex for being distributed in surface acoustic wave sensor, the flexible material film are sensed by substrate support column and surface acoustic wave
Device connection, the flexible material film are also connect with force-transmitting pole.
Preferably, the flexible material film is equipped with protrusion, the protrusion towards the side center of surface acoustic wave sensor
It is connect with force-transmitting pole.
Preferably, 2 surface acoustic wave sensory packages in the surface acoustic wave sensing module are mutual by substrate support column
Connection.
Preferably, the fixing end includes the handle and firm banking of integration connection, and the occlusion measurement end is set to
On firm banking, shape and the oval shape of the firm banking match.
Preferably, silicone protective film is also covered on the outer surface of the surface acoustic wave sensing module.
Compared with prior art, the utility model has the following beneficial effects:
(1) the utility model proposes measuring device use integrated design, all elements are integrated in engaging device,
The characteristics of, passive and wireless small in size based on surface acoustic wave sensor, which is integrally of moderate size, reasonable in design, just
In carrying and storage.
(2) flexible material film is designed using convex shape, is set to upper layer and lower layer piezoelectric material base by substrate support column
The outside of piece, flexible material film intermediate raised portion connect one end of force-transmitting pole, and the other end of force-transmitting pole connects piezoelectric substrate,
Preferably the pressure that dental articulation generates can be concentrated on force-transmitting pole using convex shape design so that pressure signal obtain it is double
Concentrate again, when measurement more accurate stabilization.
(3) conversion between dental articulation force signal and electric signal can be realized by surface acoustic wave sensor, without supplying
Electricity, electric signal are sent to controlling terminal by antenna component, connect between antenna component and interdigital transducer without transmission line, real
The working method of existing passive and wireless, avoids the factors such as electric leakage from generating security risk to user.
(4) saw sensor module is agreed with tooth distribution and is arranged in handle front end, can disposably measure each tooth
The bite force size of tooth improves detection efficiency, more intuitively reflects the holistic health of user's tooth.
(5) silica gel material protective film wraps up surface acoustic wave sensor component wherein, plays a protective role to component, simultaneously
Silica gel material protective film is safe to the human body harmless, and repeatable cleaning uses, and reduces cost, preferably promotes the use of.
(6) the surface acoustic wave sensor thickness used is smaller, so that it is guaranteed that measuring device size is smaller, reduces to normally stinging
The interference of conjunction improves measurement precision.
(7) tester only needs to hold handle, and device front end is put between upper layer and lower layer tooth according to tooth distribution, with
It firmly bites away afterwards, bite force can be measured, measurement is convenient, easily operated.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the three-dimensional structure diagram of surface acoustic wave sensing module；
Fig. 3 is the main view of surface acoustic wave sensing module；
Wherein, 1 is surface acoustic wave sensing module, and 2 be silicone protective film, and 3 be fixing end, and 4 be flexible material film, and 5 are
Piezoelectric material substrate, 6 be interdigital transducer, and 7 be reflecting grating, and 8 be antenna chip, and 9 be force-transmitting pole, and 10 be substrate support column.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.The present embodiment is with the utility model
Implemented premised on technical solution, the detailed implementation method and specific operation process are given, but the guarantor of the utility model
Shield range is not limited to the following embodiments.
In order to solve the problems, such as that existing dental articulation force measuring device precision is not high and cost is excessive, the present embodiment is proposed
A kind of dental articulation force measuring device based on surface acoustic wave sensor, including fixing end interconnected 3 and occlusion measurement end,
Occlusion measurement end includes multiple surface acoustic wave sensing modules 1, the position of surface acoustic wave sensing module 1 and dental articulation to be measured
Position matches.
Wherein, surface acoustic wave sensing module 1 includes the surface acoustic wave sensory package of 2 mutually opposing connections.Surface acoustic wave
Sensory package includes that surface acoustic wave sensor, force-transmitting pole 9 and peripheral protection element, force-transmitting pole 9 are set to surface acoustic wave sensor
On, peripheral protection element is connect with force-transmitting pole 9 and surface acoustic wave sensor respectively.Surface acoustic wave sensor includes piezoelectric material base
Piece 5, interdigital transduction assembly and antenna chip 8, force-transmitting pole 9, interdigital transduction assembly and antenna chip 8 are both secured to piezoelectric material base
On piece 5.Interdigital transduction assembly includes interdigital transducer 6 and reflecting grating 7, and interdigital transducer 6 and reflecting grating 7 are respectively arranged at piezoelectricity
The both ends of material base 5.Peripheral protection element includes flexible material film 4 and substrate support column 10, and substrate support column 10 is uniform
The apex for being distributed in surface acoustic wave sensor, flexible material film 4 pass through substrate support column 10 and surface acoustic wave sensor
Connection, flexible material film 4 are also connect with force-transmitting pole 9.Flexible material film 4 is set towards the side center of surface acoustic wave sensor
There is protrusion, protrusion is connect with force-transmitting pole 9.2 surface acoustic wave sensory packages in surface acoustic wave sensing module 1 pass through substrate support
Column 10 is connected with each other.Fixing end 3 includes the handle and firm banking of integration connection, and occlusion measurement end is set to firm banking
On, shape and the oval shape of firm banking match.It is also covered on the outer surface of surface acoustic wave sensing module 1 silica gel protected
Film 2.
The dental articulation force measuring device realized according to above structure is as shown in Figure 1, it can be seen from the figure that the measurement fills
32 teeth that can correspond to human body in this way including 16 surface acoustic wave sensing modules 1 are set, are set to hand according to tooth distribution
It on the firm banking of handle front end, and is wrapped up by silicone protective film 2, surface acoustic wave sensing module 1 is prevented to be damaged.
Wherein, the structure of surface acoustic wave sensing module 1 as shown in figures 2-3, the sound surface including two mutually opposing connections
Wave sensory package, two surface acoustic wave sensory packages are connected by substrate support column 10, are passed by two reversed surface acoustic waves
Sensor, can be realized simultaneously the bite force measurement of upper tooth and lower tooth, and surface acoustic wave sensory package includes surface acoustic wave sensor, passes
Power column 9 and peripheral protection element；Peripheral protection element includes one layer of flexible material film 4 and four foundation piece support columns 10.
Four foundation piece support columns 10 connect piezoelectric material substrate 5 and flexible material film 4, and form three hollow cavities；
Two force-transmitting poles 9 are individually fixed in upper and lower two hollow cavity centers；Flexible material film 4 is designed using convex shape, passes through biography
Power column 9 connects piezoelectric material substrate 5, on the one hand for protecting piezoelectric material substrate 5 and interdigital transduction assembly, is on the other hand used for
Dental articulation pressure is focused on force-transmitting pole 9,5 center of piezoelectric material substrate is then transferred to, is allowed to be converted to electric signal, and
Realize the conversion between electric signal and surface acoustic wave signal.
Surface acoustic wave sensor includes piezoelectric material substrate 5, interdigital transduction assembly and antenna chip 8；Interdigital transduction assembly
It is respectively arranged in upper and lower two cavitys, is placed on piezoelectric material substrate 5 with antenna component 8；Interdigital transduction assembly is delay line
Type, every group of interdigital transduction assembly include at least an interdigital transducer 6 and a reflecting grating 7, and interdigital transducer 6 and reflecting grating
7 are individually fixed in the both ends of piezoelectric material substrate 5；Interdigital transducer 6 is set to one end of piezoelectric material substrate 5, for realizing
Conversion between electric signal and surface acoustic wave signal；Reflecting grating 7 is set to the other end of piezoelectric material substrate 5, for will propagate to
Interdigital transducer 6 is returned in the surface acoustic wave signal reflex of reflecting grating 7；Antenna component 8 is placed on piezoelectric material substrate 5, for receiving
With transmitting electric signal, it is wirelessly transferred.In the present embodiment, the thickness of surface acoustic wave sensing module is between 5~7mm, in this way
So that the volume of entire measuring device is sufficiently small, convenient for hand-held and operation.
The specific test process of the test device is as follows, and tester holds handle and is put into force measuring instrument front end is engaged two layers
Among tooth, the corresponding saw sensor module of a tooth realizes snap-in location, and subsequent tester firmly bites away,
Apply pressure at right angle on the surface acoustic wave sensor component of measuring instrument front end, is concentrated bite force by flexible material film 4
It is transferred on force-transmitting pole 9, pressure is concentrated the center for being transferred to piezoelectric material substrate 5,5 table of piezoelectric material substrate by force-transmitting pole 9 again
Face generates elastic deformation, generates surface acoustic wave through piezoelectric effect, interdigital transducer 6 converts the external electromagnetic wave signal received
Reflecting grating 7, the surface acoustic wave signal and tooth that interdigital transducer 6 issues are propagated to through piezoelectric material substrate 5 at surface acoustic wave signal
Mixed signal after the surface acoustic wave signal that tooth bite force generates is overlapped is reflected back interdigital transducer 6 through reflecting grating 7 again,
Interdigital transducer 6 then will reflect back into the mixed signal come and be converted into electric signal, finally be emitted again by antenna chip 8 to terminal
Device is managed, to obtain the bite force numerical value of each tooth.
Claims (5)
1. a kind of dental articulation force measuring device based on surface acoustic wave sensor, which is characterized in that described device includes mutual
The fixing end and occlusion measurement end of connection, the occlusion measurement end includes multiple surface acoustic wave sensing modules, the surface acoustic wave
The position of sensing module matches with dental articulation position to be measured；
The surface acoustic wave sensing module includes the surface acoustic wave sensory package of 2 mutually opposing connections；
The surface acoustic wave sensory package includes that surface acoustic wave sensor, force-transmitting pole and peripheral protection element, the force-transmitting pole are set
It is placed on surface acoustic wave sensor, the periphery protection element is connect with force-transmitting pole and surface acoustic wave sensor respectively；
The surface acoustic wave sensor includes piezoelectric material substrate, interdigital transduction assembly and antenna chip, the force-transmitting pole, interdigital
Transduction assembly and antenna chip are both secured on piezoelectric material substrate；
The periphery protection element includes flexible material film and substrate support column, and the substrate support column is evenly distributed in sound
The apex of surface wave sensor, the flexible material film is connect by substrate support column with surface acoustic wave sensor, described
Flexible material film is also connect with force-transmitting pole；
The fixing end includes the handle and firm banking of integration connection, and the occlusion measurement end is set on firm banking,
The shape of the firm banking matches with oval shape.
2. the dental articulation force measuring device according to claim 1 based on surface acoustic wave sensor, which is characterized in that institute
Stating interdigital transduction assembly includes interdigital transducer and reflecting grating, and the interdigital transducer and reflecting grating are respectively arranged at piezoelectric material
The both ends of substrate.
3. the dental articulation force measuring device according to claim 1 based on surface acoustic wave sensor, which is characterized in that institute
It states flexible material film and is equipped with protrusion towards the side center of surface acoustic wave sensor, the protrusion is connect with force-transmitting pole.
4. the dental articulation force measuring device according to claim 1 based on surface acoustic wave sensor, which is characterized in that institute
2 in surface acoustic wave sensing module surface acoustic wave sensory packages are stated to be connected with each other by substrate support column.
5. the dental articulation force measuring device according to claim 1 based on surface acoustic wave sensor, which is characterized in that institute
It states and is also covered with silicone protective film on the outer surface of surface acoustic wave sensing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820457801.4U CN209091406U (en) | 2018-03-30 | 2018-03-30 | A kind of dental articulation force measuring device based on surface acoustic wave sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820457801.4U CN209091406U (en) | 2018-03-30 | 2018-03-30 | A kind of dental articulation force measuring device based on surface acoustic wave sensor |
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| CN209091406U true CN209091406U (en) | 2019-07-12 |
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| CN201820457801.4U Expired - Fee Related CN209091406U (en) | 2018-03-30 | 2018-03-30 | A kind of dental articulation force measuring device based on surface acoustic wave sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114176593A (en) * | 2021-12-29 | 2022-03-15 | 首都医科大学附属北京口腔医院 | Portable tooth occlusal force digital analyzer |
-
2018
- 2018-03-30 CN CN201820457801.4U patent/CN209091406U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114176593A (en) * | 2021-12-29 | 2022-03-15 | 首都医科大学附属北京口腔医院 | Portable tooth occlusal force digital analyzer |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190712 |
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| CF01 | Termination of patent right due to non-payment of annual fee |