CN206728276U - Microphone in utensil and oral cavity in a kind of oral cavity - Google Patents

Abstract

The utility model discloses microphone in utensil in a kind of oral cavity and oral cavity, utensil includes that intraoral instrument outer shell and microphone assembly can be positioned in the oral cavity；Microphone assembly includes：Oral contact tissue, vibrating sensor and signal processing unit.Oral contact tissue surrounds the vibrating sensor, and is contacted with intraoral mucomembranous surface；Oral contact tissue has the acoustic impedance to match with intraoral mucomembranous surface.Vibrating sensor is connected with signal processing unit；Signal processing unit is included in instrument outer shell.By the utility model embodiment scheme, as the component in non-visible hearing device, the monitoring device of body sounds or communication equipment, it can run microphone in the environment incompatible with most of existing devices.

Description

Microphone in utensil and oral cavity in a kind of oral cavity

Technical field

Oral device designing technique is the utility model is related to, microphone in utensil and oral cavity in espespecially a kind of oral cavity.

Background technology

At present.As technology develops, various auditory prosthesis or electronic auscultation device dark clouds and give birth to.

A kind of electronic auscultation device being widely used is for detecting by user's sounding the larynx of caused tissue vibration Portion's microphone.Sound (vibration) ripple is propagated by the sclerous tissues around throat and soft tissue as caused by vocal cords, and the quilt when speaking Contacting microphone mounted externally is detected.

Another is used to detect the skin that the tissue contacting microphone that user speaks is arranged on forehead by usual outside At mastoid bone on skin, after ear or in duct.It is different from the sensor installed in throat or microphone, the detection of these microphones As caused by the sympathetic response of the other parts of throat and sound channel (hard/soft palate, tongue, lip, tooth), pass through skull (via osteoacusis) And then the vibration for the skin histology propagation for passing through surrounding.Tone-off (NAM) microphone therein is installed in after ear close to lower jaw Above soft tissue, for conducting the small acoustical vibration mainly conducted in the soft tissue around oral cavity.

Recent study have evaluated some tissue contacting microphones in throat and skull and suspension type (air Conduction) performance that compares of microphone, and demonstrate contacting microphone for voice noise than improvement.Study and also found, Due to reducing the information from the soft phonatory organ coding of such as tongue and lip in theory, the voice of contacting microphone is clear Speech intelligibility of the clear degree inferior to boom microphone.However, as numerous contacting microphone systems is by commercial distribution, Wear in the environment for being limited by equipment or there is excessive ambient noise of for example full head's helmet, protective garment and underwater kit, can not Using air transmitted formula microphone, at this moment contacting microphone avoids these environmental restrictions, therefore it reduces speech intelligibility The defects of be substantially allowed in these cases.

In summary, the tissue contacting microphone for carrying out voice conduction by throat, ear or osteoacusis has significantly Advantage, but current tissue contacting microphone is usually required in outside install sensor, electronic equipment and/or battery. Such equipment may be very heavy and be easily found, hinders the use equipped such as other of the helmet and protection device, and may Understand ear canal and may not be used in moist and/or rugged environment.

Based on above-mentioned consideration, the related developments in the field of touch sensor are organized to include full-implantation type audiphone, its Middle mi-crophone part is installed in subcutaneous directly over after ear or the bone wall installed in duct.It is designed to make to detect with above-mentioned The sensor or microphone of the voice of user are different, and the hearing aid microphone being implanted is designed to respond the sound of surrounding environment Sound.In such systems, the implanted transducing for emulating middle ear is being launched into by the signal that microphone detects Device is launched into electrode for emulating auditory nerve.As a part for full-implantation type auditory system, implantable microphone It is favourable to user at some aspects：Auditory system is all sightless, eliminates apparent obstacle；Its not ear canal, The problem of comfortable/incompatible is eliminated, and the perception to lower frequency sounds is improved in the case of partial loss of hearing；And its Allow to use in the environment incompatible with traditional hearing aid or in activity.However, significantly the shortcomings that is to need operating procedure Microphone, battery and Signal Regulation/amplification electron equipment are installed or removed, and there must be some to be charged in outside for battery Device.In addition, the microphone of implantation depends on some change of medium circuits between the vibration of skin surface and electric signal Level, which limit the performance of integral device.

Utility model content

In order to solve the above-mentioned technical problem, the utility model provides in a kind of oral cavity microphone, energy in utensil and oral cavity Enough as the component in non-visible hearing device, the monitoring device of body sounds or communication equipment, its can with it is most of Have in the incompatible environment of equipment and run.

In order to reach the utility model purpose, the utility model provides utensil in a kind of oral cavity, including：Mouth can be positioned over The instrument outer shell and microphone assembly of intracavitary；Microphone assembly includes：Oral contact tissue, vibrating sensor and signal transacting list Member.

Oral contact tissue surrounds the vibrating sensor, and is contacted with intraoral mucomembranous surface；Oral contact tissue With the acoustic impedance to match with intraoral mucomembranous surface.

Vibrating sensor is connected with signal processing unit；Signal processing unit is included in instrument outer shell.

Alternatively,

Vibrating sensor, for detecting the vibration of intraoral mucomembranous surface and vibration signal being converted into electric signal.

Signal processing unit, for being filtered, amplifying and being wirelessly transferred to electric signal.

Alternatively, there is bossing in oral contact tissue, the bossing can be sandwiched between two teeth and/ Or it is fixed at least on a tooth.

Alternatively, vibrating sensor separates with instrument outer shell, and vibrating sensor passes through default wire body and signal transacting list Member is electrically connected.

Alternatively, microphone assembly also includes：Sensor stand；Sensor stand includes the first fixing end, the second fixation Hold and be connected to the deformable connecting rod between the first fixing end and the second fixing end.

Oral contact tissue is fixed in the first fixing end；Instrument outer shell is fixed in the second fixing end；First fixing end Position different in oral cavity is individually fixed in the second fixing end.

Alternatively, vibrating sensor is included in instrument outer shell.

Instrument outer shell has at least one opening port, and vibrating sensor is placed at the opening port, and vibrating sensor passes through Oral contact tissue contacts with intraoral mucomembranous surface.

Alternatively, microphone assembly also includes：Sensor frame.

Vibrating sensor is fixed in sensor frame, and vibrating sensor is enclosed in oral cavity together with sensor frame Contact in tissue.

Alternatively, sensor frame is flexible metallic plate.

Vibrating sensor is pasted on flexible metallic plate by flexible adhesives.

Alternatively, sensor frame is suspension beam structure；Suspension beam structure includes：Substrate and beam column.

Vibrating sensor is pasted on substrate by hydraulic binder；Substrate and beam column are both secured to the of sensor stand In one fixing end.

Beam column includes first end and the second end；First end is contacted by oral contact tissue with intraoral mucomembranous surface； Second end contacts when intraoral mucomembranous surface vibrates and promotes the first end motion with vibrating sensor, by intraoral mucous membrane The vibration on surface is delivered to vibrating sensor.

Alternatively, suspension beam structure includes at least two；Respectively the first suspension beam structure and the second suspension beam structure.

First substrate in first suspension beam structure has the first resonant frequency；Second substrate in second suspension beam structure has Second resonant frequency.

First resonant frequency is different from the second resonant frequency.

Alternatively, vibrating sensor includes：Piezoelectric film.

In order to reach the utility model purpose, the utility model additionally provides microphone in a kind of oral cavity, including：Phase successively Signal gathering unit, signal processing unit, memory cell and interface unit even.

Signal gathering unit includes：Oral contact tissue and vibrating sensor.

Oral contact tissue surrounds vibrating sensor, and is contacted with intraoral mucomembranous surface；Oral contact tissue has There is the acoustic impedance to match with intraoral mucomembranous surface.

Vibrating sensor is connected with signal processing unit.

Signal processing unit includes：The signal amplifier and wave filter of interconnection；The input of signal amplifier is with shaking Dynamic sensor is connected, and the output end of wave filter is connected with memory cell.

Wherein, the interface of interface unit is default module interface.

Alternatively,

Vibrating sensor, signal is sent to for gathering the vibration information of intraoral mucomembranous surface and being converted into electric signal Processing unit.

Signal processing unit, for being amplified and filtering to electric signal.

Memory cell, for storing the output information of signal processing unit.

Interface unit, for the storage information of memory cell to be transferred out.

Alternatively, interface unit includes the first module interface；First module interface and wireless launcher or external reception The second module interface in equipment is connected；Wherein, the second module interface matches with the first module interface.

Alternatively, wireless launcher includes：Wireless network module, wireless radio frequency modules and/or bluetooth module.

Alternatively, the first module interface includes general-purpose serial bus USB interface.

Compared with prior art, the utility model includes that intraoral instrument outer shell and microphone assembly can be positioned over；Wheat Gram wind component includes：Oral contact tissue, vibrating sensor and signal processing unit.Oral contact tissue surrounds the vibrating sensing Device, and contacted with intraoral mucomembranous surface；Oral contact tissue has the acoustic resistance to match with intraoral mucomembranous surface It is anti-.Vibrating sensor is connected with signal processing unit；Signal processing unit is included in instrument outer shell.It is real by the utility model A scheme is applied, for microphone as the component in non-visible hearing device, the monitoring device of body sounds or communication equipment, it can Run in the environment incompatible with most of existing devices.

Other features and advantages of the utility model will illustrate in the following description, also, partly from specification In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages can pass through Specifically noted structure is realized and obtained in specification, claims and accompanying drawing.

Brief description of the drawings

Accompanying drawing is used for providing further understanding technical solutions of the utility model, and a part for constitution instruction, With being used to explain the technical solution of the utility model together with embodiments herein, do not form to technical solutions of the utility model Limitation.

Fig. 1 is utensil structure schematic diagram in the oral cavity of the utility model embodiment；

Fig. 2A be related curvature by the pressure that normal direction is pointed to be converted into comparable pressure applied it is much larger, along film Axis tensile stress exemplary plot；

Fig. 2 B are the normal force of the related caused overarm acted at the end of suspension beam structure bending and along film axis Tensile stress exemplary plot；

Fig. 2 C are the related piezoelectricity membrane tissue contacting microphone schematic diagram for including the film around the winding of rubber contact pad, Wherein due to the radial expansion of rubber blanket, the normal force acted on pad generates the stress along film axis；

Fig. 3 is the annexation and position between the vibrating sensor of the utility model embodiment and additional electronic building brick Relation schematic diagram；

Fig. 4 is that the vibrating sensor of the utility model embodiment and instrument outer shell are discretely located structural representation；

Fig. 5 is the sensor support structure schematic diagram of the utility model embodiment；

By sensor branch when Fig. 6 A integrate for the vibrating sensor of the utility model embodiment with instrument outer shell Frame is fixed on the schematic diagram of the inner surface of cheek；

By sensor branch when Fig. 6 B integrate for the vibrating sensor of the utility model embodiment with instrument outer shell Frame is fixed on the schematic diagram of palatine；

By sensor branch when Fig. 6 C integrate for the vibrating sensor of the utility model embodiment with instrument outer shell Frame is fixed on the schematic diagram at gums；

When Fig. 7 A are that the piezoelectric film of the utility model embodiment is placed on a metal plate, the edge of piezoelectric film is (in 71 directions On) be jammed but when both sides are not jammed, it stretches force direction (on 71 directions) schematic diagram；

Fig. 7 B are the suspension beam structure embodiment schematic diagram of the utility model embodiment, and bent in the embodiment infrabasal plate Schematic diagram；

Fig. 7 C are embodiment schematic diagram when including multiple suspension beam structures of the utility model embodiment；

Fig. 7 D are its respective resonant frequency schematic diagram when including multiple suspension beam structures of the utility model embodiment；

Fig. 7 E are that including for the utility model embodiment is clamped against on hard platform and by the cylinder of piezoelectric film encirclement The rubber contact pad schematic diagram of section；And the piezoelectricity comprising the cylindrical part for being sandwiched in rubber contact pad and the centre of hard platform The schematic diagram of ceramic disk；

Fig. 7 F be the utility model embodiment comprising be placed on electret microphone behind air chamber and barrier film (every Film is contacted with rubber blanket to contact skin histology) structural representation；

Fig. 8 is microphone structure schematic diagram in the oral cavity of the utility model embodiment.

Embodiment

For the purpose of this utility model, technical scheme and advantage is more clearly understood, below in conjunction with accompanying drawing to this The embodiment of utility model is described in detail.It should be noted that in the case where not conflicting, embodiment in the application and Feature in embodiment can be mutually combined.

Can be in the computer system of such as one group computer executable instructions the flow of accompanying drawing illustrates the step of Perform.Also, although logical order is shown in flow charts, in some cases, can be with suitable different from herein Sequence performs shown or described step.

The mechanical oscillation of (tissue) film that the detection similar to same air transmitted formula microphone is covered are subcutaneously implanted Microphone is different, is used to detect microphone in the oral cavity of ambient sound and must be responsive to the soft tissue for being coupled to head and pass through head The acoustic pressure wave that the soft tissue in portion is propagated.Due to the scattering of impedance mismatch and signal, the side between the air and tissue on head Boundary turns into the major obstacles of sound transmission, and the external sound pressure energy of only fraction is sent to embedded type sensor.Sound Vertical incidence of the ripple on air/water border is pressed to cause the sound intensity of 33dB (99.9%) in theory to lose.Consider that scattering effect also exists Wherein work, and the FEA model of water polo (being similar to head) through the air predicts slightly higher acoustic attenuation.Therefore use There must be enough SNR (signal noise ratio) in oral cavity organization's conduction-type microphone of measuring environment sound to detect most Overcome the loss in air/tissue interface during small expectation environment sound pressure level (SPL).The index of establishing criteria, quilt Fabulous voice should be able to be reached under conditions of 70dB SPL by acting effectively as oral cavity organization's microphone of the part of hearing device Definition, and useful performance is provided under conditions of 60dB SPL, wherein due to propagation loss, it is converted into and is surveyed at sensor Amount is less than 30dB SPL.(such as voice, breathed or other bodies when being used to (i.e. local) sound of detection by user's generation Body sound) when, the intraoral vibration propagated in the soft tissue of user of tissue microphone sensing, be not limited to air/ Loss at organizational boundary.

In order to reach the utility model purpose, the utility model provides utensil 10 in a kind of oral cavity, as shown in figure 1, should Utensil 10 is dismountable in oral cavity, including：Intraoral instrument outer shell 11 and microphone assembly 12 can be positioned over；Microphone group Part 12 includes：Oral contact tissue 121, vibrating sensor 122 and signal processing unit 123.

Oral contact tissue 121 surrounds the vibrating sensor 122, and is contacted with intraoral mucomembranous surface 20；Oral cavity Contact tissue 121 has the acoustic impedance to match with intraoral mucomembranous surface 20.

Vibrating sensor 122 is connected with signal processing unit 123；Signal processing unit 123 is included in instrument outer shell 11.

In the utility model embodiment, in order to realize the voice signal that body is detected in oral cavity, employ tissue and connect The vibrating sensor of touch, vibrating sensor 122, for detecting the vibration of intraoral mucomembranous surface 20 and turning vibration signal Turn to electric signal.Organize contact vibrating sensor (contacting microphone) have well sensing as heartbeat, blood flow or The effect of the sound from body of breathing.Sensors with auxiliary electrode (or transducer) can be placed on contact skin or soft group of contact The position knitted simultaneously produces electric signal in response to being caused by biophysics process, by the vibration of organizational communication.Tissue contact is shaken Dynamic sensor can use a variety of frameworks, but any framework is required for comprising the contact to match with the acoustic impedance of skin or tissue Surface (oral contact tissue 121 described above), oral contact tissue 121 surround the vibrating sensor 122, and with oral cavity Mucomembranous surface 20 contact；When equipment be adjusted to it is not sensitive enough by airborne sound when, with skin or tissue The oral contact tissue 121 that acoustic impedance matches effectively can will be coupled to transducing through skin or the acoustic pressure wave of organizational communication Device, be converted to electric signal.Ambient noise can be efficiently reduced by vibrating sensor, and be very suitable in such as industrial field Equipment under institute, the first-class noise circumstance of the vehicles of movement or battlefield as two-way communication uses.Alternatively, oral contact group Rubber, polyurethane or plastics etc. can be included by knitting 121 material.

Alternatively, vibrating sensor includes：Piezoelectric film.Wherein the piezoelectric film can include PVDF (polyvinylidene fluoride) Film.Because the high pressure piezoelectric voltage constant g (voltage is strained and associated by piezoelectric voltage constant g with caused by) of PVDF piezoelectric film can be very The good low mechanical impedance and its overall robustness and mechanical stability that match oral cavity organization, therefore, PVDF are (poly- Vinylidene fluoride) piezoelectric film be well suited as the feeler of oral cavity organization to use.In addition, with the air in closing Relied in chamber and mechanical oscillation are changed into pressure change with then by air transmitted formula microphone come the touch sensor that detects Difference, tissue vibration are directly translated as electric signal by piezoelectric film by piezo-electric effect.

When being gripped on the open framework of bending, the mechanical displacement that pvdf membrane 40 points to normal direction is with very high Susceptibility, and when less than under resonance operate when it has flat frequency response.Pressure that curvature points to normal direction or Power F is converted to than the much larger tensile stress along film axis of stress applied, as shown in Figure 2 A, the film caused by it Strain and the electric charge proportional to pressure applied is produced on the electrode of film.Wherein it is possible to according to required electrical impedance, spirit The area of sensitivity, resonant frequency and mechanical impedance adjustment film thickness, radius of curvature (ROC) and electrode, that is, allow for application It is finely adjusted.As shown in Figure 2 B, it can be applied to and be configured in cantilever beam structure it illustrates the power F pointed to when normal direction Film 40 example, wherein directing force F result in the tension force F1 along the length of beam.Similarly, as shown in Figure 2 C, it illustrates Normal direction directing force F may be applied to warp architecture 41 with the film for causing the radial expansion on warp architecture and being bonded in surrounding The middle other example for producing tension force.

In the utility model embodiment, include signal processing unit with the electronic building brick that vibrating sensor 122 matches 123, the electric signal that the vibration signal that signal processing unit 123 can detect to vibrating sensor 122 changes into pre-processes, For example, the electric signal is filtered, amplified, stored and is wirelessly transferred.Signal processing unit 123 can include wave filter, put Big device, memory and/or wireless radio-frequency emission unit.When signal processing unit 123 includes wireless radio-frequency emission unit, oral cavity Interior tissue microphone (vibrating sensor 122) is used as a part for communication system, for example, collecting and handling user's Signal comprising voice is simultaneously wirelessly transmitted to telephone set (for example, cell phone), twoway radio (for example, hand by voice Hold formula twoway radio), or other can use standard low-power radio communication protocol (for example, bluetooth) receive And/or the communication equipment of transmission signal.Because the sound of air transmitted of the tissue microphone to outside is insensitive, the utility model The device of embodiment will be particularly useful in high-noise environment.

Alternatively, the communication system of the utility model embodiment, i.e., above-mentioned wireless radio-frequency emission unit is available to be had The electronic device of more power by scope to increase to 10-100 rice or more.Therefore user can wear completely hidden Microphone and communicated with remotely located receiver.In this case, remotely located recipient can be by oral cavity Tissue microphone come detect the voice of user, biophysics sound (such as breathing, heartbeat sound and other) or ring Border sound.According to the application, the relatives or household of distant place can detect the health status of user.

In other application, utensil 10 is used as monitoring user's in the oral cavity of the utility model embodiment Voice, biophysics sound, or a part for the intraoral recording system of ambient sound.The signal received from microphone 50 The flash memory that can be stored into the tongue portion 60 for being encapsulated in dental appliance or other suitable memory storages are set For in the analysis of time later in standby, as shown in Figure 3.Because the size of microphone 50 itself limits, in microphone package 50 sides can only include vibrating sensor 122 (including the oral contact tissue 121 being enclosed in around it) and simple audio connects Receive amplifier and/or wave filter 51.And in the opposite side of dental appliance, i.e., volume can be included according to different applications in tongue portion 60 Outer less radio-frequency encapsulation 60, is specifically included：Digital signal processor 61, transmitting and/or receiving circuit 62 (can specifically include Antenna, 621 impedance matching circuits 622, radio-frequency transmissions amplifying circuit 623, radio frequency chip 624), battery 63 (such as lithium from Sub- battery), power supply and power adjustment unit 64, and memory 65 (such as flash memory).In this case, vibration passes The connection utensil that sensor 122 or pre-amplification circuit are surveyed between tongue side by means of the cheek guided below in rear molar, is connected To battery supply and the circuit-level in downstream.Equipment can be when necessary (according to the purpose used or in the battery charging for closing) Dismantled from mouth.Charging can be used induction installation (wherein needing induction coil in dental appliance encapsulation) or pass through direct-coupling Exposed contact is completed.

Utensil 10 in the oral cavity to the utility model embodiment is continued with to be described further.

Alternatively, vibrating sensor 122 separates with instrument outer shell 11, and vibrating sensor 122 passes through default wire body and letter Number processing unit 123 is electrically connected.As shown in Figure 4.

In the utility model embodiment, vibrating sensor 122 can be placed on device together with other microphone assemblies Have in shell 11, when installing in the oral cavity, a position in the oral cavity is installed；Vibrating sensor 122 can also be not placed in In instrument outer shell 11, separated with instrument outer shell 11, and other microphone assemblies are still positioned in instrument outer shell 11, so can be with So that when the limitations such as the shape due to instrument outer shell 11, size can only be installed on an intraoral fixed position, vibration passes Sensor 122 can be still separated installed in most suitable vibration acquisition opening position.At this moment, surrounding has vibrating sensor 122 Oral contact tissue 121 can also pass through following sensor branch by producing connection between wire body and instrument outer shell 11 Connection is produced between frame 124 and instrument outer shell 11.It should be noted that when oral contact tissue 121 passes through outside wire body and utensil When connection is produced between shell 11, the oral contact tissue 121 can be pasted onto intraoral mucomembranous surface by way of stickup On 20.Further optionally, there is bossing on oral contact tissue 121, the bossing can be sandwiched in two teeth it Between and/or be fixed at least on a tooth.By the bossing, oral contact tissue 121 can be fixed.Further Ground, oral contact tissue 121 can also be accommodated in such as metal, plastics on the tongue side that can be positioned in tooth or cheek side or In the shell of other materials.The tooth contacting portion of the shell preferably includes soft plastics or elastomeric material is passed with reducing via bone Turned on the vibration that tooth is coupled to shell.The shell can also be moulded for example, by materials such as liquid silastics (LSR), And the part of the contact soft tissue (such as inner surface of cheek) of shell can have silicones or polyurethane contact surface.Shell Inside can also include electrically-conducting paint or the coat of metal to reduce susceptibility of the microphone for electromagnetic interference.

Alternatively, microphone assembly 12 also includes：Sensor stand 124；Sensor stand 124 includes the first fixing end 1241st, the second fixing end 1242 and the deformable connecting rod being connected between the first fixing end 1241 and the second fixing end 1242 1243.As shown in Figure 5.

Oral contact tissue 121 is fixed in the first fixing end 1241；Instrument outer shell 11 is fixed on the second fixing end 1242 On；First fixing end 1241 and the second fixing end 1242 are individually fixed in position different in oral cavity.

In the utility model embodiment, when vibrating sensor 122 separates with instrument outer shell 11, have for the ease of surrounding The fixation of the oral contact tissue 121 of vibrating sensor 122, a sensor stand 124 can be set, by oral contact tissue 121 and instrument outer shell 11 be separately fixed at the both ends of sensor stand 124, and the both ends of sensor stand 124 can be distinguished It is fixed at the diverse location in oral cavity.In order to further such that the connecting rod 1243 of the sensor stand 124 can adapt to mouth Different installation tendencies in chamber, the connecting rod 1243 the could be arranged to changeability or connecting rod 1243 is flexible material.

It is further to note that the structure type of above-mentioned sensor stand 124 is only the implementation that can implement Example, can also use other structures, be not limited for its concrete structure herein in other embodiments.And the sensor Support 124 can also be existing oral appliance, for example, facing, dental aligners, artificial tooth etc..In this case, it is above-mentioned The vibrating sensor 122 being separated from each other can be respectively arranged in the diverse location of existing oral appliance with instrument outer shell 11.Example Such as, for artificial tooth, can be installed on vibrating sensor 122 on the outside of artificial tooth makes vibrating sensor 122 and phase on the inside of cheek Place is met, instrument outer shell 11 can be installed on the inner side of artificial tooth, i.e., at tongue side.

Therefore, sensor stand 124 may be to be made and pass through thermoforming process by using the model of tooth structure The equipment of the customization of production.Can also be the non-customized equipment produced using non-customized form.Connecting rod 1243 therein can It can be installed to suitable position for connecting line or other structural elements, such as stretching and be gripped to after discharging on molar Torsionspring.And the connecting rod 1243 can be used as power supply and/or signal pipe line.

Alternatively, vibrating sensor 122 is included in instrument outer shell 11.Instrument outer shell 11 has at least one opening port 111, vibrating sensor 122 is placed at the opening port 111, and vibrating sensor 122 passes through in oral contact tissue 121 and oral cavity Mucomembranous surface 20 contact.

In the utility model embodiment, vibrating sensor 122 can also be included in together with other microphone assemblies In instrument outer shell 11, integrate utensil 10 in whole oral cavity.In this case, in order that obtaining vibrating sensor 122 It can be contacted by oral contact tissue 121 with intraoral mucomembranous surface 20, it is necessary at least retain one on instrument outer shell 11 Individual opening, i.e., above-mentioned opening port 111, one or more vibrating sensors 122 are respectively placed at an opening port 111, point Do not contacted by oral contact tissue 121 with intraoral mucomembranous surface 20.

In the utility model embodiment, utensil 10 directly can fix or be pasted onto tooth in the oral cavity integrated On tooth or oral mucosa, can also with above-mentioned dismountable existing oral appliance, for example, facing, dental aligners, artificial tooth Deng attachment, it is bonded or integrates.One end of above-mentioned sensor stand 124 can also be fixed on, as shown in Figure 6A, is passed through The other end of sensor stand 124 is coupled on the tooth of rear molar M as shown in Figure 6A to be caused to place utensil 10 in oral cavity It keeps contacting with the specific soft tissue in oral cavity.Because utensil 10 is placed as the sound as close as outside in oral cavity Source of sound to reduce signal attenuation to greatest extent, so oral mucosa (inner surface of cheek) is optimum position (Fig. 6 A), gums (as shown in Figure 6 C) or palate (as shown in Figure 6B) also may make up the position of replacement.

The embodiment that vibrating sensor 122 separates with instrument outer shell 11 is also show in same Fig. 6.For example, such as Fig. 6 B institutes Showing, cheek point can place the instrument outer shell 11 kept including battery and/or signal processing unit 123, and via sensor branch The Part II that frame 124 couples can rely on the part of soft palate, i.e., the oral contact for surrounding and having vibrating sensor 122 is placed in tongue side Tissue 121.Fig. 6 C illustrate other change, wherein oral contact tissue 121 be likely to be positioned at cheek side against gums G and It is not located on single tooth or multiple teeth surface.When two parts are mutual around molar via sensor stand 124 During coupling, Part II vibrating sensor 122 can be maintained in tongue side as described above.

Alternatively, microphone assembly 12 also includes：Sensor frame 125.

Vibrating sensor 122 is fixed in sensor frame 125, and vibrating sensor 122 is together with sensor frame 125 It is enclosed in oral contact tissue 121.

In the utility model embodiment, in order to adapt to the demand of different vibrating sensors, a biography can also be set Sensor framework 125.For example, when vibrating sensor 122 is using PVDF piezoelectric film, because it is flexible material, it is thus possible to need Sensor frame 125 is wanted to be fixed as carrier.

Alternatively, sensor frame 125 is flexible metallic plate.Vibrating sensor 122 is pasted by flexible adhesives Onto flexible metallic plate.

In the utility model embodiment, if vibrating sensor 122 be one layer of pvdf membrane (such as 10mm x 20mm, 52 Micron is thick), (such as by cyanoacrylate, epoxy resin or double-sided adhesive) can be bonded it to or mechanically clipped to Flexible and open sensor frame 125 and build, as shown in Figure 7 A so that the draw direction of pvdf membrane 122 is (known " 1 " direction 71) it is along the radius of curvature direction of sensor frame 125.In other embodiments, it is possible to use such as being total to for PVDF Other piezoelectric films of polymers (such as PVDF-TrFE).

In the utility model embodiment, the sensor frame 125 realized in the form of metallic plate can be by such as 304 or 316 The biocompatibility metal of stainless steel or titanium is built.In order to which the amount of invalid membrane material (which increasing parasitic capacitance) is kept to most It is small, the border width of the sensor frame 125 of metallic plate form be maintained at it is achievable, effectively to clamp film and prevent partially Oblique minimum value.For example, 1-2mm width can be used.In addition, radius of curvature directly affects sensitivity and the resonance frequency of microphone Rate (due to the influence of film flexibility).Such as 5mm-20mm framework radius, it can be carried while enough device sensitivities are kept For the resonant frequency higher than key speech frequency band (300-4kHz).In addition, depend on desired characteristic, the sensing of metallic plate form Device framework 125 may be configured as such as ellipse, a variety of different shapes of circle.It should be noted that optional real Apply in example, sensor frame 125 is not essential, and the contact surface of oral contact tissue 121 is remained adhered in piezoelectric film And therewith vibration contact when, sensor frame 125 can be omitted, i.e., piezoelectric film directly can be fixed or pasted above-mentioned outer Do not supported in shell and by framework.

Alternatively, silicones RTV or polyurethane rubber (such as NuSil Med-6015 or Dow Corning (DOW CORNING) X3-6121 contact layer (lens)) is cast on the correct position of PVDF piezoelectric film.Contact lens, which can include, is located at framework Middle shallow profile protrusion be open to ensure the good contact of itself and oral soft tissue and vibration is efficiently couple to PVDF The live part of piezoelectric film.Lens casting cycle ensure that between lens and pvdf membrane close Mechanical Contact on the whole surface And for sealing the preceding surface of microphone assembly to prevent the intrusion of liquid.Other method is will by using flexible adhesives Piezoelectric film is attached to preforming rubber contact layer.This needs carefully operation to ensure the close contact on effective film surface With the waterproof sealing at lens/shell interfaces.In order that mechanical load effect is changed into minimum and reduces the profile of microphone, connect Tactile lens are likely confined to such as 1-2mm thickness.

In addition, in the utility model embodiment, in the embodiment for the sensor frame 125 realized in the form of metallic plate In, first group of edge relative to each other can be jammed (in 1 direction) on the film of the vibrating sensor 122 of piezoelectricity form membrane, but Second group of relative edge need not be jammed, as shown in Figure 7 A.Static state (i.e. " the DC ") pressure acted on contact lens 50 Cause film to be glanced off from centre position 52 be straightened or flat, result in the form 54 of above-mentioned bending.Here, cause The amount of curvature 54 limited by the DC power being applied in, therefore, the sensitivity and frequency response of vibrating sensor 122 will be in validity periods Between change.However, this framework make it that equipment is lighter/smaller, structure is more simplified.It should be noted that in this framework, film The amount of curvature can apply DC electric fields to adjust by being connected to the DC step-up converter circuits of the first and second electrodes via lead Whole/control.Alternatively, in specific set, required piezoelectric film curvature, which can be adhered to film by using flexible adhesives, to be had Realized on the rubber contact layer for the curvature being determined in advance.

Alternatively, sensor frame 125 is suspension beam structure 30；Suspension beam structure 30 includes：Substrate 301 and beam column 302.

Vibrating sensor 122 is pasted on substrate 301 by hydraulic binder；Substrate 301 and beam column 302 are both secured to pass In first fixing end 1241 of sensor bracket 124.

Beam column 302 includes the end 3022 of first end 3021 and second；First end 3021 passes through oral contact tissue 121 and oral cavity Interior mucomembranous surface 20 contacts；Second end 3022 when intraoral mucomembranous surface 20 vibrate and promote first end 3021 move when with Vibrating sensor 122 is contacted, and the vibration of intraoral mucomembranous surface 20 is delivered into vibrating sensor 122.

In the utility model embodiment, the vibrating sensor 122 of piezoelectricity form membrane is incorporated with suspension beam structure 30.Piezoelectric film The vibrating sensor 122 of form is adhered on the substrate 301 of suspension beam structure 30 with hard bonding agent (such as epoxy resin), and The end of substrate 301 is gripped on sensor stand 124, as shown in Figure 7 B.In this arrangement, the end of substrate 301 is acted on The normal force in portion result in the bending moment in substrate 301 and the tensile stress along film axis.With it is foregoing bending/ The piezoelectric film arrangement clamped is the same, and tension force effect is at the edge of piezoelectric film；Piezoelectricity film edge has less effective area, causes The edge has the stress more much bigger than the stress measured at the surface of film, so as to causing in the case where identical is passed to pressure Produce higher voltage.

Alternatively, suspension beam structure 30 includes at least two；Respectively the first suspension beam structure 31 and the second suspension beam structure 32.

First substrate 311 in first suspension beam structure 31 has the first resonant frequency；Second in second suspension beam structure 32 Substrate 321 has the second resonant frequency.First resonant frequency is different from the second resonant frequency.

In the utility model embodiment, the size and material of suspension beam structure 30 can adjust, with humorous needed for offer Vibration frequency.For example, being compared with the suspension beam structure of plastic material, the suspension beam structure of steel can produce higher resonant frequency.Tool The multiple suspension beam structures for having different qualities can be set in the sensor frame 125 of the utility model embodiment with to effective frequency Rate response is extended, as seen in figure 7 c.In this arrangement, single tissue engagement pad is applied to two suspension beam structures On, each suspension beam structure has the frequency response of its own.For example sensor frame 125 can be arranged to the first overarm The suspension beam structure 32 of structure 31 and second, the first substrate 311 with the first resonant frequency is provided with the first suspension beam structure 31, The second substrate 321 with the second resonant frequency is provided with two suspension beam structures 32, wherein, the first resonant frequency can be high humorous Vibration frequency, the second resonant frequency can be low resonant frequency.First substrate 311 and second substrate 321 can be by close to each other It is fixed together, and identical power F can be applied on first substrate 311 and second substrate 321.In response to external vibration, Voltage signal caused by vibrating sensor 122 is applied and amplified to produce broadband frequency response, as (shown in Fig. 7 D.Namely Say, response 84 from the first substrate 311 with high resonant frequency and from the second substrate 321 with low resonant frequency Response 86 can be applied and amplify to produce broadband frequency response.

Alternatively, rubber contact pad 92 can be included in microphone assembly 12, piezoelectric film 122 can be pasted onto rubber contact On pad, wherein when piezoelectric film 122 receives method phase separation power F, rubber contact pads 92 radial expansions, may be referred to Fig. 2 C, acts on Normal force F on rubber contact pad 92 produces the tension force along the axis of piezoelectric film 122.Alternatively, rubber contact pad 92 can Think the cylindrical segment 94 for being sandwiched in platform 90 (for example, metallic plate) such as on Fig. 7 E.Piezoelectric film 122 by using epoxy resin or Cyanoacrylate or other adhesives are bonded on cylindrical segment 94.Wherein, the tab 96 of small exposure allows to connect Enter bottom electrode, or, through hole is set on platform 90, and electrical lead 95 is connected to after top electrodes and bottom electrode by this Through hole is directed into the cavity of oral contact tissue 121 for Signal Regulation and amplification.

Further optionally, vibrating sensor 122 can be piezoelectric ceramic plate 96, i.e., can also be wrapped in microphone assembly 12 Containing the piezoelectric ceramic plate 96 (such as PZT 5H) for being coupled to rubber contact pad 92.Piezoelectric ceramic plate 96 is sandwiched in (and to be connect with it Touch) between the cylindrical part 94 of rubber contact pad and hard platform 90, as seen in figure 7e.Piezoelectric ceramic plate 96 can pass through example As epoxy resin or other suitable jointing materials as known in the art are attached to platform 90.The diameter of piezoelectric ceramic plate 96 and Thickness can be configured accordingly to provide the resonant frequency higher than audio band interested.Platform 90 can be by such as Ultem (PEI), PEEK (polyether-ether-ketone) rigid polymer or other suitable polymeric material manufactures, with piezoceramic disk The back side provides unmatched mechanical impedance and improves sensitivity.Electrical lead 95 is attached to or is welded to the piezoelectric electro of top and bottom Pole is simultaneously directed into the cavity of oral contact tissue 121, for connecting Signal Regulation electronic equipment.As piezoelectric film, It is coupled to the strain that the vibration of piezoelectric ceramic plate 96 causes material, produces electric charge.In this arrangement, piezoelectric ceramic plate 96, such as PZT5H ceramics, there is more significant effect than the piezoelectric film in above-described embodiment.However, piezoelectric ceramic plate 96 (~ High acoustic impedance 30MRayl) limits the amount for the acoustic energy that can be coupled from rubber.By using the synthesis of ceramics or epoxy resin Thing reduces acoustic impedance (~15MRayl), significantly improves mechanical couplings.

Alternatively, can also be included in microphone assembly 12 based on the acoustical vibration described in United States Patent (USP) 7433484 Sensor.This design includes the electret microphone 99 being placed on behind air chamber 97 and barrier film 98, and barrier film 98 connects with rubber Touch pad 92 keeps contact to contact tissue, as shown in Figure 7 F.Electret microphone 99 is typically suitable for outside using and comprising logical Relief hole into outside air.By the closure of sealing, sensor can be incorporated in the foregoing description it is dismountable In some oral appliance or dental appliance.The air chamber 97 being closed in the chamber of microphone behind has the humorous of influence equipment The effect of the stiffness reactance of vibration frequency, and can offset due to the organized layer of addition and caused extra mechanical load.

In the utility model embodiment, due to being installed in the cheek side of upper molar, intraoral tissue conduction-type Mike The oral contact tissue 121 comprising vibrating sensor 122 need to be accommodated in less space in wind component, for example to say Improve comfortableness during the normal activity talked about, eat, drink and laughed at and keep hidden.Alternatively, the space can be no more than In 20mm (horizontal length) x 20mm (vertical width) x 10mm (profile elevations h) space, installed in the other installation of maxilla Configuration, such as the dead Li Zhong instrument outer shell 11 comprising signal processing unit needs similar size to limit when the utility model Spoken with the influence of minimum degree and avoid pharyngeal reflex.

In order to effectively drive other circuit-level, the high-capacitance of PVDF piezoelectric film or electret mike wind sensor will Circuit for signal conditioning is asked to be placed on the position as close possible to sensor.Preamplifier, which can include, to be used for impedance conversion and believes Number gain high input impedance (such as>10M Ohm) low noise JFET transistor or commercial electret amplifier chip, and can It is encapsulated in together with vibrating sensor 122 in oral contact tissue 121.Bandpass filter can be used to after signal amplification Prominent such as 300Hz-4000Hz voice band.

In order to reach the utility model purpose, the utility model additionally provides microphone 01 in a kind of oral cavity, including：Successively Connected signal gathering unit 02, signal processing unit 03, memory cell 04 and interface unit 05, as shown in Figure 8.Need to illustrate , any embodiment in above-mentioned microphone assembly 12 suitable for the embodiment of microphone 01 of the present utility model, This is no longer repeated one by one.

Signal gathering unit 02 includes：Oral contact tissue 121 and vibrating sensor 122.

Oral contact tissue 121 surrounds vibrating sensor 122, and is contacted with intraoral mucomembranous surface；Oral contact Tissue 121 has the acoustic impedance to match with intraoral mucomembranous surface.

Vibrating sensor 122 is connected with signal processing unit 03, for gathering the vibration information of intraoral mucomembranous surface And it is converted into electric signal and is sent to signal processing unit 03.

Signal processing unit 03 includes：The signal amplifier 031 and wave filter 032 of interconnection；Signal amplifier 031 Input is connected with vibrating sensor 122, and the output end of wave filter 032 is connected with memory cell 04.Signal processing unit 03, use In being amplified and filter to electric signal.

In the utility model embodiment, the function base of the signal processing unit 03 and above-mentioned signal processing unit 123 This is identical, can realize the amplification and filtering of the electric signal exported to vibrating sensor 122.Unlike, the signal transacting Unit 03 will not include foregoing wireless radio-frequency emission unit, the i.e. signal processing unit 03 no longer being wirelessly transferred comprising signal Function.In this embodiment, wireless launcher and wireless transmitting unit can be used as single module, and can be by following Interface unit 05 be attached with it, carry out modularization, and modules so as to the part of counterpart intracavitary utensil 10 Between connection be connected by standard interface, i.e., above-mentioned module interface, be easy to the maintenance, replacing and dismounting of module.

Memory cell 04, for storing the output information of signal processing unit 03.

In the utility model embodiment, memory cell 04 is added in the microphone 01, the memory cell 04 can be with It is that temporary storage location can also be long-term storage locations.When what is be connected by interface unit 05 with memory cell 04 fills for wireless transmission When putting, the memory cell 04 signal processing unit 03 can be handled after, signal gathering unit 02 (be specially vibrating sensor 122) information is kept in the oral cavity collected, and is launched by wireless launcher.When interface unit 05 not with nothing During line emitter, the information after the memory cell 04 can be handled signal processing unit 03 is stored, until the Mike After wind is taken out from oral cavity, it is connected by interface unit 05 with external reception equipment, then the information that memory cell 04 is stored Transfer out.

Interface unit 05, for the storage information of memory cell 04 to be transferred out.Wherein, the interface of interface unit 05 is Default module interface.

In the utility model, the interface unit 05 is connecing between microphone 01 and external reception equipment or other modules Mouthful, in order that obtaining by the interface can smoothly enter between microphone 01 and different external reception equipments and different modules Row data transfer, interface unit 05 are arranged to module interface, and the module interface is standard interface, can be it is existing any one The interface shape that can be realized, is not particularly limited herein.

Alternatively, interface unit 05 includes the first module interface 051；First module interface 051 and wireless launcher or The second module interface in external reception equipment is connected；Wherein, the second module interface matches with the first module interface 051.

Alternatively, wireless launcher includes：Wireless network module, wireless radio frequency modules and/or bluetooth module.

Alternatively, the first module interface includes general-purpose serial bus USB interface.

Compared with prior art, the utility model includes that intraoral instrument outer shell and microphone assembly can be positioned over；Wheat Gram wind component includes：Oral contact tissue, vibrating sensor and signal processing unit.Oral contact tissue surrounds the vibrating sensing Device, and contacted with intraoral mucomembranous surface；Oral contact tissue has the acoustic resistance to match with intraoral mucomembranous surface It is anti-.Vibrating sensor is connected with signal processing unit；Signal processing unit is included in instrument outer shell.It is real by the utility model A scheme is applied, for microphone as the component in non-visible hearing device, the monitoring device of body sounds or communication equipment, it can Run in the environment incompatible with most of existing devices.

Although the embodiment disclosed by the utility model is as above, described content is only to readily appreciate the utility model And the embodiment used, it is not limited to the utility model.Technical staff in any the utility model art, On the premise of not departing from the spirit and scope disclosed by the utility model, it can be carried out in the form and details of implementation any Modification and change, but scope of patent protection of the present utility model, still should be subject to the scope of the claims as defined in the appended claims.

Claims (11)

1. A kind of 1. utensil in oral cavity, it is characterised in that including：Intraoral instrument outer shell and microphone assembly can be positioned over；Institute Stating microphone assembly includes：Oral contact tissue, vibrating sensor and signal processing unit；

   The oral contact tissue surrounds the vibrating sensor, and is contacted with the intraoral mucomembranous surface；The mouth Chamber contact tissue has the acoustic impedance to match with the intraoral mucomembranous surface；

   The vibrating sensor is connected with the signal processing unit；The signal processing unit is included in the instrument outer shell It is interior；

   The vibrating sensor is included in the instrument outer shell；

   The instrument outer shell has at least one opening port, and the vibrating sensor is placed at the opening port, the vibration Sensor is contacted by the oral contact tissue with the intraoral mucomembranous surface..
2. 2. utensil in oral cavity according to claim 1, it is characterised in that

   There is bossing in the oral contact tissue, the bossing can be sandwiched between two teeth and/or by It is fixed at least on a tooth.
3. 3. utensil in oral cavity according to claim 1, it is characterised in that the microphone assembly also includes：Sensor frame Frame；

   The vibrating sensor is fixed in the sensor frame, and the vibrating sensor is together with the sensor frame It is enclosed in the oral contact tissue.
4. 4. utensil in oral cavity according to claim 3, it is characterised in that the sensor frame is flexible metal Plate；

   The vibrating sensor is pasted on the flexible metallic plate by flexible adhesives.
5. 5. utensil in oral cavity according to claim 3, it is characterised in that

   The microphone assembly also includes：Sensor stand；The sensor stand include the first fixing end, the second fixing end and The deformable connecting rod being connected between first fixing end and second fixing end；

   Utensil is fixed in first fixing end in the oral cavity, and second fixing end is fixed at least on a tooth, First fixing end and second fixing end are fixed on intraoral different position；

   The sensor frame is suspension beam structure；The suspension beam structure includes：Substrate and beam column；

   The vibrating sensor is pasted on the substrate by hydraulic binder；The substrate and the beam column are both secured to institute State in first fixing end of sensor stand；

   The beam column includes first end and the second end；The first end by the oral contact tissue with it is described intraoral viscous Film surface contacts；Second end shakes when the intraoral mucomembranous surface vibrates and promotes first end motion with described Dynamic sensor contacts, the vibrating sensor is delivered to by the vibration of the intraoral mucomembranous surface.
6. 6. utensil in oral cavity according to claim 5, it is characterised in that the suspension beam structure includes at least two；Respectively For the first suspension beam structure and the second suspension beam structure；

   First substrate in first suspension beam structure has the first resonant frequency；Second substrate in second suspension beam structure With the second resonant frequency；

   First resonant frequency is different from second resonant frequency.
7. 7. utensil in the oral cavity according to claim 1 to 6 any one, it is characterised in that the vibrating sensor includes： Piezoelectric film.
8. A kind of 8. microphone in oral cavity, it is characterised in that including：The signal gathering unit that is sequentially connected, signal processing unit, deposit Storage unit and interface unit；

   The signal gathering unit includes：Oral contact tissue and vibrating sensor；

   The oral contact tissue surrounds the vibrating sensor, and is contacted with the intraoral mucomembranous surface；The mouth Chamber contact tissue has the acoustic impedance to match with the intraoral mucomembranous surface；

   The vibrating sensor is connected with the signal processing unit；

   The signal processing unit includes：The signal amplifier and wave filter of interconnection；The input of the signal amplifier It is connected with the vibrating sensor, the output end of the wave filter is connected with the memory cell；

   Wherein, the interface of the interface unit is default module interface.
9. 9. microphone in oral cavity as claimed in claim 8, it is characterised in that the interface unit includes the first module interface； First module interface is connected with the second module interface on wireless launcher or external reception equipment；Wherein, described Two module interfaces match with first module interface.
10. 10. microphone in oral cavity as claimed in claim 9, it is characterised in that the wireless launcher includes：Wireless network Module, wireless radio frequency modules and/or bluetooth module.
11. 11. microphone in oral cavity as claimed in claim 9, it is characterised in that first module interface includes general serial Bus USB interface.