JP2008301988A - Headphone with function of expressing one's mind, and dental chair set - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a headphone with a function of expressing one's mind since a normal headphone is used by attaching it to existing audio equipment only for listening, with hardness for patients to express their minds during a dental treatment. <P>SOLUTION: When the patient presses a push button 7a, a voice synthesizer 8 generates voice signals that sound "it hurts, it hurts" and produces the sounds from a speaker 3. In the same way, when the patient presses a push button 7b, the speaker 3 produces the sound that sound "it hurts, it hurts very much". When the patient shifts a switch 7c sideways, a microphone 4 and an ear set 5 are connected to transmit voices of a dentist through the microphone 4 and the ear set 5. When a push-button switch 7 is not used, signals of a sound reproducing system 2 are sent to the ear set 5 through a line 6 so that the patient listens to music. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a headphone with an intention display function for communicating between a doctor and a patient in dentistry having an audio reproducing device such as a CD, a cassette tape, a mini-disc, and the like.

Ordinary headphones are just for listening to audio equipment such as existing CD players. Even with such a normal method of using headphones, the sound accompanying dental treatment can be confused by being worn on a patient during dental treatment.
JP-A-11-212596

  However, if only ordinary headphones are used, the transmission of voice from the doctor will be hindered, so it will be uncertain whether, for example, the mouth should be opened more or the mouth should be rinsed. The patient cannot speak of course because he cannot move his mouth during treatment. Of course, the patient cannot speak to the speaker of the speaker microphone even if the headphone is a speaker microphone. Therefore, it has been almost impossible to transmit will from a patient undergoing dental treatment to a doctor.

  Thus, there arises a problem of how the patient listens to music with headphones and how to communicate with the doctor, and how the doctor communicates with patients who listen to music with headphones.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a headphone with a will display function that can solve such a problem, and that allows a patient to listen to music or the like with an audio device and improve communication between the doctor and the patient.

  Dental cutting tools produce noise with a high sound pressure level with a keen and high sound. This sound feels awkward to the patient because it is associated with pain.

  It is an object of the present invention to provide a dental treatment set that can be removed from the noise of a dental cutting tool in order to improve the patient's communication.

1st invention which concerns on this application is a headphone with a patient's will display function used for dental treatment,
A willing switch provided in a position that can be operated by a patient who is sitting on a dental treatment table and wearing an earset;
A speech synthesizer that receives a signal from the will display switch and outputs an artificial speech signal;
A speaker that receives an artificial voice signal and outputs an artificial voice;
An audio player with
The earset coupled to the audio playback player via a wire;
It is a headphone with a patient's intention display function used for the dental treatment which has.

  A second invention according to the present application is the headphone with a will display function according to the first invention, wherein the will display switch is integrally incorporated in the sound reproducing player.

  A third invention according to the present application is the headphone with a will display function according to the first invention, wherein the will display switch is coupled to the sound reproduction player via a wire.

  According to a fourth aspect of the present invention, there is provided a sound reproduction player provided with a microphone so as to convert a sound collected by being energized, de-energized by a switch that can be operated by a patient into an electric signal, and sending it to an earset A headphone with a will display function according to any one of the first to third aspects of the invention.

  The fifth aspect of the present invention is the will according to any one of the first to fourth aspects, wherein the earset has an active noise control member that silences the sound generated from the dental cutting tool. Headphone with display function.

  According to a sixth aspect of the present application, there is provided an active noise control member that has a sound collecting microphone and a control speaker on a headrest and silences noise generated by the dental cutting device collected by the sound collecting microphone with sound generated from the control speaker. A dental treatment set having a headphone with a patient's intention display function used for dental treatment according to any one of the first to fourth inventions in combination with a dental treatment table.

According to the first aspect of the present invention, the patient can indicate his / her intention regarding treatment simply by using his / her hand during dental treatment. The doctor has an indication of the patient's will for the current treatment, so he can consider whether or not to continue the treatment policy. Since it is an audio playback player, it can display the will of interruption during treatment while listening to music. Moreover, since the earset also cuts off the external sound from incomplete flaws, the sound generated by the dental cutting device can be reduced.

  According to the second aspect of the present invention, the intention display switch is integrated with the audio player, so that it is easy to handle.

  According to the third aspect of the present invention, the will display switch can be disposed at a position where the patient can easily operate, and there is no possibility of erroneous operation of the buttons of the audio player.

  According to the fourth aspect of the present invention, since the sound reproducing player is provided with the microphone, the sound collected by the microphone is converted into an electric signal and sent to the earset, so that the doctor's intention display to the patient is clear. To be told. Also, when the dental cutting device is in use, the microphone can be de-energized with a switch that connects to the microphone, so the noise of the dental cutting device is reduced by the earset and can only be heard by the patient .

  According to the invention which concerns on Claim 5, when the sound which a dental cutting tool emits enters into an ear | edge, it becomes small.

  According to the invention which concerns on Claim 6, the noise which generate | occur | produces from a dental cutting device outside an earset can be made small. And the noise can be further insulated by the ear muffler of the ear set. Since the noise generated by the dental cutting device entering the microphone is reduced, the doctor's voice is often transmitted to the patient through the microphone.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external view schematically showing the whole embodiment. FIG. 2 is a block diagram of the embodiment.

  As shown in FIG. 1 showing the entire headphones, an audio playback player such as a CD player 1 as an audio device is integrally provided with a CD sound playback device 2, a speaker 3, a microphone 4, and a voice synthesis device 8. Although not shown, the CD player 1 has a known operation member on the surface. The CD player 1 and the earset 5 are connected by a wired line 6. The length of the line 6 is, for example, above the patient's upper body so that a doctor who is sleeping on a dental table can easily talk to a microphone (hereinafter referred to as a microphone) 4 while wearing the earset 5. The length is such that the CD player 1 can be supported by a stand or the like on the side of the patient as viewed from the doctor.

  A push button switch 7 is supported on the line 6 as an intention display switch for displaying the will of the patient. The pushbutton switch 7 is located at a position where the patient wearing the earset 5 can push. The pushbutton switch 7 includes large and small pushbuttons 7a and 7b and a switch 7c for shifting horizontally. Although not shown in the figure, the push button switch 7 is displayed with a letter "I want to explain" the push button 7a or a facial figure representing a desired expression beside the small push button 7a. Similarly, the words “Very nice” indicating the explanation of the large push button 7b or a facial figure representing a very facial expression are displayed. Similarly, a double arrow indicating the direction of operation, a musical character, a character representing the microphone 4, or a graphic of these are shown to show the explanation of the switch 7c to be shifted laterally.

  The CD player 1 is provided with a voice synthesizer 8. A voice signal generated by the voice synthesizer 8 is sent to the speaker 3 and emits an artificial voice from the speaker 3. The push button switch 7 and the voice synthesizer 8 are connected by a wired line 9. The wired line 9 transmits an active signal generated by the push buttons 7a and 7b to the speech synthesizer 8. When the push-button 7 a is pressed, the voice synthesizer 8 sends an electric signal of an artificial voice “I want to hate” to the speaker 3. The speaker 3 utters “I want to be there”. Similarly, when the push button 7b is pressed, the voice synthesizer 8 sends an electrical signal of an artificial voice “I want to be very much” to the speaker 3. The speaker 3 speaks “I want to be very much”.

  Here, the voice synthesizer 8 can be replaced with one that generates a sound by using a part of the sound reproducing device 2 and generates a sound from the speaker 3. However, since the intention display of “I want to be” or “I want to be very much” is urgent, it is necessary to speak immediately when the push buttons 7a and 7b are pressed, so it is better to provide a separate speech synthesizer 8. In the figure, the lines 6 and 9 are separated, but in the embodiment, the lines 6 and 9 and a later-described line 18 are bundled.

  The CD player 1, the earset 5, and the push button switch 7 constitute a headphone with a will display function.

  1 and 2 is coupled to the amplifier 12 in the CD player 1 through a wired line 18, an OR circuit 15 provided in the CD player 1, and a line 16. The amplifier 12 is turned on and off by turning on and off the switch 7c.

  FIG. 2 is a block diagram showing an internal configuration of the CD player 1 of FIG. The output of the sound reproducing device 2 for reproducing music recorded on a recording medium such as a compact disc CD, a mini disc, or a tape is sent to the earset 5 via a line 6. The sound received by the microphone 4 is converted into a sound signal and transmitted to the patient as sound from the earset 5 via the amplifier 12 and the lines 11 and 6. The line 6 is provided with a normally closed switch 6a following the output portion of the sound reproducing device 2. When the amplifier 12 is energized, the amplifier 12 opens the normally closed switch 6a via a driver.

  The push button switch 7 is provided with push buttons 7a and 7b and a switch 7c for shifting to the side. The active signal generated by pressing the push buttons 7a and 7b operates the speech synthesizer 8.

  Various speech synthesizers 8 have been proposed. For example, when a text signal is input in advance and the push button 7a is pressed, a synthesized sound of "I want to do it" is generated. When the push button 7b is pressed, a voice saying “I want to be very much” is generated.

  Signals when the push buttons 7a and 7b are pressed are input to the speech synthesizer 8 via the line 9 and are also input to the amplifier 12 via the line 9, the OR circuit 15, and the line 16 so as to activate the amplifier 12. It has become.

  FIG. 5 is a block diagram showing an example of the speech synthesizer 8. When the text input 31 is input, the phonetic symbol generation unit 32 receives the input and generates a phonetic symbol and outputs it to the time length control unit 34, the sound source generation unit 35, and the spectrum generation unit 37. Similarly, when the text input 31 is input, the prosodic symbol generator 33 generates a prosodic symbol and outputs it to the time length controller 34 and the pitch generator 36. The time length control unit 34 to which the phonetic symbol and the prosodic symbol are input controls the time of the voice to be output. The pitch generation unit 36 to which the prosodic symbol is input generates a voice pitch and outputs it to the spectrum generation unit 37. The sound generator 35 generates a sound source from the input phonetic symbols and outputs it to the waveform synthesizer 38. The spectrum generation unit 37 generates a spectrum indicating the frequency distribution of speech from the input pitch and phonetic symbols, and outputs the spectrum to the waveform synthesis unit 38. The waveform synthesis unit 38 synthesizes and outputs a synthesized speech waveform 39 from the spectrum and the sound source. The synthesized speech waveform 39 is stored in a memory (not shown).

  The main part of the speech synthesizer 8 is composed of one LSI.

  The amplifier 12 is turned on and off via a line 18, an OR circuit 15, and a line 16 from a switch 7 c that is shifted laterally. The amplifier 12 includes a driver that generates an active signal for opening the normally closed switch 6a when the on signal of the switch 7c to be shifted to the side is input.

  The push button switch 7 is arranged in a range where the patient 13 can reach from the patient 13 (see FIG. 3) on the dental treatment table 17. A signal generated by pressing the push buttons 7a and 7b is input to the speech synthesizer 8 via the line 9.

  The voice generated by the voice synthesizer 8 is amplified by the amplifier 14 and uttered from the speaker 3. As described above, when the push button 7a is pressed, “aitai, taiai”, which has been previously input into the voice generating device 8, is converted into voice, amplified by the amplifier 14, and uttered from the speaker 3. Similarly, when the push button 7 b is pressed, a synthesized sound “I want to meet you very much” is produced from the speaker 3.

  Next, the operation of the above configuration will be described. FIG. 3 is a schematic perspective view showing the dental treatment. The patient 13 is lying on the dental treatment table 17 and opened the mouth 13a to receive the doctor's D teeth. The CD player 1 is placed on the patient 13. The CD player 1 may be placed on a table (not shown) on which dental instruments are placed. Patient 13 is wearing earset 5. The push button switch 7 is placed within the reach of the patient 13. When the push button switch 7 is integrated into the CD player 1, the place where the CD player 1 is placed is limited to the body of the patient 13.

  Before the start of dental treatment, the CD player 1 has the sound reproduction device 2 activated, and the patient 13 is listening to music that calms the heart. When Dr. D speaks to the patient 13, the voice is blocked by the earset 5, so even if the patient 13 can not hear it completely, it is understood that he is talking. Therefore, the patient 13 turns on a switch 7c to be shifted sideways. As a result, the amplifier 12 is energized, the normally closed switch 6a interposed in the line 6 is opened, the signal from the sound reproduction device 2 to the earset 5 is cut off, and music cannot be heard. The voice of D is converted into an audio signal and transmitted to the patient 13 by the earset 5 via the amplifier 12. For example, Dr. D says "I'll start now" before starting dental treatment, and Mike 4 tells patient 13 "I'll start now" via amplifier 12, lines 11, 6, and earset 5. It is done.

  The voice spoken by the doctor D can be heard through the muffler of the earset 5, and at the same time the patient 13 is shifted to the side, the switch 12c is turned on, and the amplifier 12 is energized via the line 18, the OR circuit 15, and the line 16. Since the voice can be heard from the earset 5 through the microphone 4, the amplifier 12, and the lines 11 and 6, the switch 7c that is shifted laterally as described below may be mechanically automatically restored and turned off.

  If the switch 7c that is shifted laterally can be restored by a spring force or the like, the patient 13 can be de-energized only by releasing the finger from the switch 7c, and the normally closed switch 6a is closed and exits from the sound reproducing device 2. The acoustic signal is transmitted to the earset 5 via the line 6, and music flows from the earset 5.

  The patient 13 turns on the switch 7c to be shifted to the side when the doctor D starts to say "I will cut my teeth, so please push the push buttons 7a and 7b to see if it is painful". The microphone 4 converts the voice of the doctor D into a signal and sends it to the amplifier 12. The amplifier 12 sends the voice signal of the doctor D to the ear set 5 and transmits it to the patient 13 from the ear set 5. The treatment of the push button switch 7, the push buttons 7 a and 7 b, and the meaning of the switch 7 c to be shifted to the side may be explained in advance to the patient 13 before entering the treatment.

  When the patient 13 wants to be treated, the patient synthesizer 8 generates the voice when the push button 7a or 7b is pressed in order to display the will of "I want to be" or "I want to be very much" depending on the degree of the severity. Then, the speaker 3 speaks through the amplifier 14. This allows doctor D to better understand the condition of patient 13 being treated. Therefore, it is necessary to change, adjust, or continue as it is about the recognized treatment method, and from the earset 5 to the patient 13 through the microphone 4, "It will be a little more patience" I will add anesthesia. "

  When the push button 7a or 7b is pressed in the above, the signal is input to the amplifier 12 via the line 9, the OR circuit 15, and the line 16, and the amplifier 12 is energized. Therefore, Dr. D considers whether or not the microphone 4 can be used when the amplifier 12 is energized simply by speaking to the patient 13 in response to a response such as “I want to” or “Very much” to the treatment of the patient 13. Needless to say, the switch operation for enabling the microphone is not necessarily required for the doctor D.

  Although not shown, holding of the amplifier 12 energized by the push button 7a or 7b is appropriately performed by a timer circuit. That is, the time for Dr. D to talk to the patient during treatment is not so long.

  In the above description, the synthesized voice uttered “I want to meet you” or “I want to see you very much” from the speaker 3 by pressing the push button 7 a or 7 b is uttered from the speaker 3. This artificial sound is transmitted to the patient 13 through the microphone 4, the amplifier 12, the line 11, and the earset 5, so that the patient 13 can confirm that his / her intention display has been transmitted to the doctor D.

  In dentistry, a dental cutting device (also called a dental handpiece) is used. FIG. 4 shows a head portion of an example of a dental cutting device (handpiece) 20. In the center hole, for example, an end mill-shaped cutting tool 21 is provided with a hollow rotating shaft 22 so that it can be inserted and removed in the axial direction. The rotating shaft 22 is supported at both ends by rolling bearings 23 and 24. The rolling bearing 23 is fitted and supported in a bearing house 26 that can accommodate an impeller 25 fixed to the rotary shaft 22. A bearing house 27 that fits and supports the rolling bearing 24 is fitted in the bearing house 26. Each of the above members has a circular configuration around the rotation shaft 22.

  The rotary shaft 22, the rolling bearings 23 and 24, the impeller 25, and the bearing houses 26 and 27 having the above-described configuration are unitized and accommodated in the head part house 28 of the dental cutting apparatus. The cap 29 is screwed into the screw 28a to be cut at the inner edge. The cap 29 presses the bearing house 27 to fix the bearing houses 26 and 27 to the head portion house 28.

  Compressed air is blown into the impeller 25 from the air supply passage 28 b provided in the head part house 28 and the air supply opening 26 a of the bearing house 6 in the direction of the tangent line of the impeller 25, and the impeller 25 is rotated with a rotational force. The compressed air is discharged from an exhaust port (not shown) provided at a position where the impeller 25 is rotated about 270 degrees.

  In such a dental cutting apparatus 20, the cutting tool 21 has a small diameter, and is rotated at a high speed in order to obtain an appropriate cutting speed. For example, 300,000 to 500,000 rpm is selected as the rotation speed. Therefore, impellers, bearings, and the like emit high-pitched noise when the shaft rotates. This sound is not pleasant for the patient. The noise generated from the dental cutting device 20 is periodic.

  Usually, the earset has an effect of insulating low and medium level noise by the muffler. However, the sound insulation effect of the high level noise of the dental cutting device is small. Also, since the sound can be heard from other than the ears, the earset cannot provide sufficient sound insulation.

  The dental cutting device emits periodic noise. Therefore, in order to eliminate the periodic noise generated from the dental cutting device, it is possible to cancel out the same period sound having a wavelength opposite to that of the noise (phase difference 180 degrees). However, this noise cycle varies depending on whether the dental cutting apparatus is unloaded or loaded, and also changes depending on the degree of loading.

  Therefore, in this example, active noise control at the ear is adopted.

  FIG. 6 shows the dental treatment table 17. The headrest 17a is provided with an error microphone (sound collecting microphone) 41 and a control speaker 42 in order to eliminate the sound generated from the dental cutting device 20 (see FIG. 3). The details of this configuration are the same as the earset with active noise control described below.

  When the error microphone 41 and the control speaker 42 are provided on the headrest 17a and an active noise control circuit is provided, noise generated by the dental cutting device 20 is reduced. Therefore, the voice that the doctor D talks to the patient 13 can be clearly transmitted to the earset 5 through the microphone 4.

  In this example, an earset with active noise control is adopted as the earset 5.

  FIG. 7 shows an earset 43 with active noise control. The patient 13 wears an earset generally indicated by reference numeral 5 on the head 13b. The earset 5 contains an error microphone 45 and a control speaker 46 in an ear muffler 44. The signal from the error microphone 45 enters the controller 48 (transfer function Gc) through the amplifier 47, the phase is inverted in the controller 48, and is mixed with the input acoustic signal γ to be mixed with the characteristic compensation circuit 49 ( Is input to the transfer function Gp). The output from the controller 48 is amplified by the amplifier 50 and radiated from the control speaker 46. Sound y can be heard in the ear. The difference between the acoustic signal γ and the sound y heard by the ear is input as an error signal to the characteristic compensation circuit 49.

  Since the embodiment is configured as described above, it is possible to display an intention such as “I want to be there” or “I want to be very much” during dental treatment. Therefore, it is not necessary for the doctor to constantly care for the patient and treat the patient, and it is not necessary to consider the treatment method excessively and perform the acupuncture treatment. In addition, the patient can receive treatment without being worried about what to do if he / she suffers from the treatment, and a sense of security is increased by ensuring a method of indicating his / her will during painful treatment.

It is a perspective view of a headphone with a will display function. It is a block diagram of headphones with a will display function. It is a perspective view which shows dental treatment. It is a longitudinal cross-sectional view which shows a dental cutting device. It is a block diagram which shows a speech synthesizer. This is a dental treatment table having an active noise control function. It is a block diagram of the headphones which have an active noise control function.

Explanation of symbols

1 ... CD player (audio player)
2 ... Sound reproduction device 3 ... Speaker 4 ... Microphone 5 ... Earset 6 ... Line (wired) 6a ... Normally closed switch 7 ... Pushbutton switch (will display switch) 7a (small), 7b (large) ... Pushbutton 7c ... Slide switch 8 ... Artificial speech synthesizer 9 ... Line 11 ... Line 12 ... Amplifier 13 ... Patient 13a ... Mouth 13b ... Head 14 ... Amplifier 15 ... Or circuit 16 ... Line 17 ... Dental table 17a ... Headrest 18 ... Line DESCRIPTION OF SYMBOLS 20 ... Dental cutting device 21 ... Cutting tool 22 ... Rotating shaft 23 ... Rolling bearing 24 ... Rolling bearing 25 ... Impeller 26 ... Bearing house 26a ... Air supply port 27 ... Bearing house 28 ... Head part house 28a ... Female screw 28b ... Supply passage 29 ... Cap 31 ... Text input 32 ... Phonetic symbol generator 33 ... Prosodic symbol generator 34 ... Time length controller 3 ... Sound source generator 36 ... Pitch generator 37 ... Spectrum generator 38 ... Waveform synthesizer 39 ... Synthetic voice waveform 41 ... Error microphone 42 ... Control speaker 43 ... Ear set with active noise control 44 ... Ear muffler 45 ... Error microphone 46 ... Control speaker 47 ... Amplifier 48 ... Controller 49 ... Characteristic compensation circuit 50 ... Amplifier D ... Doctor y ... Sound γ ... Sound signal

Claims (6)

A headphone with a patient's intention display function used for dental treatment,
A willing switch provided at a position that can be operated by a patient who is sitting on a dental treatment table and wearing an earset,
A speech synthesizer that receives a signal from the will display switch and outputs an artificial speech signal;
A speaker that receives an artificial voice signal and outputs an artificial voice;
An audio player with
The earset coupled to the audio player via wire;
A headphone with a patient's intention display function for use in dental treatment. 2. The headphone with a will display function according to claim 1, wherein the will display switch is integrally incorporated in the audio player. 2. The headphone with a will display function according to claim 1, wherein the will display switch is coupled to the audio player via a wire. 4. The sound reproducing player according to claim 1, further comprising: a sound reproduction player provided with a microphone so as to convert a sound collected by being activated and de-energized by an operable switch into an electric signal and sending it to the earset. The headphone with the will display function described in one. 5. The headphone with a will display function according to claim 1, wherein the earset includes an active noise control member that silences a sound generated by the dental cutting tool. Claimed together with a dental treatment table having an active noise control member that has a sound collecting microphone and a control speaker on the headrest and silences the noise generated by the dental cutting device collected by the sound collecting microphone with the sound generated from the control speaker. Item 5. A dental treatment set comprising a headphone with a patient's intention display function used for dental treatment according to any one of Items 1 to 4.

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