JP2014100282A - Biological sound collecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably notify a timing for collecting biological sound.SOLUTION: A sound collecting part collects biological sound of a subject. A timing notification part notifies a plurality of timings generating the biological sound with sound.

Description

  The present invention relates to a biological sound collection device.

  A stethoscope is used as an auscultation tool in a medical field. In the technique disclosed in Patent Document 1, in a lung sound collecting apparatus that collects lung sounds of a measurement subject, the control unit repeatedly expands and contracts the shape of the image displayed on the display unit, thereby expanding the image. Lung sound data taken in is processed as inspiratory sound data by the lung sound processing means, and lung sound data taken during image contraction is processed as expiratory sound data by the lung sound processing means It is.

Japanese Patent Laid-Open No. 2007-190081

  However, even if the description in Patent Document 1 is used, the timing of collecting the body sound is low when the subject has weak visual acuity, cannot see the display device, or is in an environment where it is difficult to install the display device. There was a drawback that I did not know. As described above, there has been a problem that the timing of collecting the body sound cannot be reliably notified to the subject.

  This invention is made in view of said point, and makes it a subject to provide the biological sound collection device which can notify the timing in collection of a biological sound reliably.

  (1) The present invention has been made to solve the above-described problems, and one aspect of the present invention is a biological sound collection device, which is a sound collection unit that collects a biological sound of a subject, and the biological sound And a timing notifying unit for notifying a plurality of timings by sound and a control unit for determining the timing.

  ADVANTAGE OF THE INVENTION According to this invention, the timing in the collection of a body sound can be notified reliably.

It is a conceptual diagram of an example of the usage condition of the biological sound collection device which concerns on the 1st Embodiment of this invention. It is a schematic block diagram which shows an example of a structure of the biological sound collection device which concerns on this embodiment. It is an external view which shows an example of arrangement | positioning of the switch part in the biological sound collection device which concerns on this embodiment. It is a figure which shows an example of arrangement | positioning of the switch part in the biological sound collection device which concerns on this embodiment. It is a flowchart which shows an example of operation | movement of the biological sound collection device which concerns on this embodiment. It is a schematic block diagram which shows an example of a structure of the biological sound collection device which concerns on the modification of this embodiment. It is a schematic block diagram which shows an example of a structure of the biological sound collection device which concerns on the 2nd Embodiment of this invention. It is a flowchart which shows an example of operation | movement of the biological sound collection device which concerns on this embodiment. It is a flowchart which shows an example of operation | movement of the biological sound collection device which concerns on the 3rd Embodiment of this invention. It is a flowchart which shows an example of operation | movement of the biological sound collection device which concerns on the modification of this embodiment. It is a flowchart which shows an example of operation | movement of the biological sound collection device which concerns on the 4th Embodiment of this invention. It is a flowchart which shows an example of operation | movement of the biological sound collection device which concerns on the modification of this embodiment.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.
In the first embodiment, a case will be described in which the biological sound collection device 1 notifies the auditory sense using sound.
FIG. 1 is a conceptual diagram illustrating an example of a usage state of the biological sound collection apparatus 1 according to the first embodiment of the present invention.

  In the body sound collection status S1 in the body sound collection system, any one of the doctor H1, the medical staff H2, and the subject H3 collects the body sound of the subject H3 in order to collect the body sound of the subject H3 (hereinafter “chest”). (Also referred to as “piece”) is brought into contact with the test part of the subject H3. For example, the biological sound collection device 1 uses at least a notification sound (hereinafter also referred to as “inspiration notification sound”) for instructing inhalation to collect lung sounds as a doctor H1, a medical worker H2, or a subject H3. Notify one. Based on the notified inspiration notification sound, the subject H3 inhales, and the body sound collection device 1 collects the body sound of the subject H3 generated at that time. In addition, the biological sound collection device 1 uses at least a notification sound (hereinafter also referred to as “expiration notification sound”) for instructing exhalation to collect lung sounds as at least the doctor H1, the medical worker H2, or the subject H3. Notify one. Based on the notified breath notification sound, the subject H3 exhales, and the biological sound collection device 1 collects the biological sound of the subject H3 generated at that time.

  The biological sound collection device 1 outputs the collected biological sound of the subject H3 to, for example, the earphone 2 (hereinafter also referred to as “earpiece”) connected to the chest piece. The doctor H1 listens to and examines the body sound of the subject H3 collected by the body sound collection apparatus 1 using the earphone 2.

In each of the following embodiments, the biological sound collection device 1 and the earphone 2 are connected and described, but the present invention is not limited to this.
For example, the user collects the biological sound of the subject H3 using only the biological sound collection device 1, and the collected biological sound of the subject H3 directly or via a network using the wired or wireless terminal device 3, for example, Output to computer. When the terminal device 3 acquires the body sound of the subject H3 from the body sound collecting device 1, the doctor H1 uses the terminal device 3 to listen to and examine the body sound of the subject H3 as shown in the auscultation situation S2. Also good.

FIG. 2 is a schematic block diagram illustrating an example of the configuration of the biological sound collection apparatus 1 according to the present embodiment.
The biological sound collection device 1 includes a recording unit 11, a control unit 12, a switch unit 13, a timing notification unit 14, and a D / A unit 15. Although the body sound collection device 1 has the configuration of other generally known body sound collection devices 1, description and illustration are omitted.

  When the recording unit 11 receives an instruction signal instructing to start recording, the recording unit 11 collects a body sound (for example, lung sound, joint flexion and extension) and generates digital data representing the collected body sound. The recording unit 11 performs data processing on the generated digital data and stores it. Detailed description of the recording unit 11 will be described later.

  The control unit 12 outputs an instruction signal for instructing the start or end of recording to the recording unit 11 based on the detection signal (for example, the signal output from the switch unit 13). The control unit 12 has a first timing for causing the recording unit 11 to record a first biological sound (for example, a biological sound generated by inhaling, a biological sound generated by bending a joint, etc.) based on the detection signal. A first notification instruction signal is output to instruct the timing notification unit 14 to notify at least one of the user or the subject. Based on the detection signal, the control unit 12 causes the recording unit 11 to record a second biological sound (for example, a biological sound generated by exhaling, a biological sound generated by extending a joint, etc.). A second notification instruction signal is output to instruct the timing notification unit 14 to notify at least one of the user or the subject. A detailed description of the control unit 12 will be described later.

When the switch unit 13 generates a detection signal indicating that the user or the subject has operated, the switch unit 13 outputs the detection signal to the control unit 12.
When the first notification instruction signal is input from the control unit 12, the timing notification unit 14 generates a first timing notification signal. The timing notification unit 14 notifies the first timing of the collection of the first biological sound to at least one of the subject and the user based on the generated first timing notification signal. When the second notification instruction signal is input from the control unit 12, the timing notification unit 14 generates a second timing notification signal. The timing notification unit 14 notifies the second timing of the collection of the second biological sound to at least one of the subject and the user based on the generated second timing notification signal. Detailed description of the timing notification unit 14 will be described later.

  The D / A unit 15 converts a digital signal indicating a recorded or collected biological sound input from the data processing unit 115 into an analog signal. The D / A unit 15 outputs the converted analog signal to the earphone 2, for example, an earpiece, an earphone, a headphone, the terminal device 3, and the like.

The recording unit 11 includes a sound collection unit 112, a microphone 113, an A / D unit 114, a data processing unit 115, and a memory 116. The sound collection unit 112 includes a diaphragm 111.
The diaphragm 111 vibrates in response to a body sound, for example, an inspiratory sound or an expiratory sound, by coming into contact with a test subject (living body) of the subject. The sound collection unit 112 collects a biological sound according to the vibration of the diaphragm 111. The sound collection unit 112 outputs the collected biological sound to the microphone 113.

The microphone 113 generates an analog signal of biological sound collected by the sound collection unit 112.
The A / D unit 114 converts the analog signal generated by the microphone 113 into a digital signal. The A / D unit 114 outputs the converted digital signal to the data processing unit 115.

  The data processing unit 115 quantizes the digital signal. The data processing unit 115 performs data processing such as changing the frequency characteristics of the digital signal and emphasizing or reducing a specific frequency band of the digital signal. In addition, the data processing unit 115 performs data processing for separating the body sound and the notification sound by using a band pass filter matched to the frequency band of the body sound, for example, 20 Hz to 600 Hz, in order to separate the body sound and the notification sound. For digital signals. The data processing unit 115 stores the data-processed digital signal in the memory 116. The data processing unit 115 outputs the data-processed digital signal to the D / A unit 15.

  The memory 116 stores the digital signal input from the data processing unit 115. The memory 116 is notified in advance by the timing notification unit 14, for example, short and long sounds, high and low sounds, strong and weak sounds, difference in the number of sound notifications, two different sounds or sounds, and the same sound. Or the sound such as the same voice is stored. Note that the notification sound used by the timing notification unit 14 is, for example, a notification sound in a frequency band different from the body sound such as 1 kHz and 2 kHz, specifically, the body sound is about 20 Hz to 600 Hz. Use the notification sound.

  In the present embodiment, the notification sound is described as being stored in advance in the memory 116, but the present invention is not limited to this. For example, the doctor or user uses the sound collection unit 112 to store the notification sound in the memory 116 according to the use, and the timing notification unit 14 collects the body sound of the subject using the notification sound. You may notify a timing to at least one of a user or a test subject.

  The control unit 12 includes a switch state determination unit 121. The switch state determination unit 121 determines whether or not the switch unit 13 is generating a detection signal. When the switch unit 13 generates a detection signal, the control unit 12 outputs a first notification instruction signal to the signal generation unit 141 and instructs the recording unit 11 to start collecting sound. On the other hand, when the switch unit 13 does not generate a detection signal in the switch state determination unit 121, the control unit 12 does not operate the recording unit 11. After outputting the first notification instruction signal to the signal generation unit 141, the control unit 12 secures an area for storing the first body sound in the memory 116, and the first timing label (the first body sound indicating the first body sound) First chapter) is set. After outputting the first notification instruction signal to the signal generation unit 141, the control unit 12 waits for a predetermined time, for example, about 1 to 10 seconds, and is generated in the memory 116 by the first biological sound, for example, inspiration. Memorize biological sounds.

  The switch state determination unit 121 determines whether or not the switch unit 13 is generating a detection signal. When the switch unit 13 is generating a detection signal, the control unit 12 outputs a second notification instruction signal to the signal generation unit 141 and instructs the recording unit 11 to start collecting sound. On the other hand, when the switch unit 13 does not generate a detection signal, the control unit 12 does not operate the recording unit 11. After outputting the second notification instruction signal to the signal generation unit 141, the control unit 12 secures an area for storing the second biological sound in the memory 116, and a second timing label (second biological label indicating the second biological sound) (Second chapter) is set. After outputting the second notification instruction signal to the signal generation unit 141, the control unit 12 waits for a predetermined time, for example, about 1 to 10 seconds, and is generated in the memory 116 by the second biological sound, for example, exhalation. Memorize biological sounds.

The timing notification unit 14 includes a signal generation unit 141 and a speaker 142.
When the first or second notification instruction signal is input from the control unit 12, the signal generation unit 141 reads the waveform of the first or second notification sound to be notified to the subject or the user from the memory 116, and first Alternatively, the second timing notification signal is generated. The signal generation unit 141 outputs the generated first or second timing notification signal to the speaker 142.

  The speaker 142 notifies the first timing in the first biological sound collection to at least one of the subject and the user based on the first timing notification signal input from the signal generator 141. The speaker 142 notifies the second timing in the second biological sound collection to at least one of the subject and the user based on the second timing notification signal input from the signal generator 141.

  In the present embodiment, it is described that the D / A unit 15 is included in the biological sound collection device 1. However, for example, the biological sound collection device 1 does not include the D / A unit 15, and the earphone 2, You may comprise as another apparatus containing the D / A part 15, for example, the terminal device 3. FIG. In addition, the switch unit 13 is included in the biological sound collection device 1, but the switch unit 13 may be connected by wire or wirelessly, or may be configured as another device as a switch piece. Furthermore, although the speaker 142 has been described as being included in the biological sound collection device 1, it may be connected by wire or wirelessly, or may be configured as a separate device as a timing notification device.

  In this embodiment, the user or the subject is notified of the timing using the speaker 142. However, the present embodiment is not limited to this, and the notification sound is released into the air like the speaker 142. For example, an earphone or a headphone may be used without transmitting the sound.

FIG. 3 is an external view showing an example of the arrangement of the switch unit 13 in the biological sound collection apparatus 1 according to the present embodiment.
FIG. 3 includes a housing 10 that includes a schematic block diagram of the biological sound collection device 1 illustrated in FIG. 2 as an internal configuration, and a sound collection unit 112. The sound collection unit 112 includes a diaphragm 111 disposed at one end of the casing 10 and a diaphragm holding member 16 that holds the diaphragm 111 in the casing 10, and the casing 10 in which the diaphragm 111 is not disposed. A switch unit 13 is disposed around the outer periphery of the switch.

  When operated by the user or the subject, the switch unit 13 generates a detection signal indicating that the user or the subject has operated. The switch unit 13 outputs the detection signal to the control unit 12 so that the recording unit 11 operates. Specifically, for example, the switch is kept on while the switch unit 13 is pressed by the user or the subject. When the user or the subject stops pressing from the switch unit 13, the switch is turned off.

  Thereby, since the user or the subject has the switch unit 13 in the biological sound collection device 1 held in the hand, the operation is easy.

FIG. 4 is a diagram illustrating an example of the arrangement of the switch unit 13 in the biological sound collection device 1 according to the present embodiment.
FIG. 4 includes a housing 10 that includes the schematic block diagram of the biological sound collection device 1 illustrated in FIG. 2 as an internal configuration, and a sound collection unit 112 that is disposed at one end of the housing 10. The sound collection unit 112 is installed such that the diaphragm 111, the diaphragm holding member 16 that supports the diaphragm 111 around the casing 10 and supports the diaphragm 111, and a part of the diaphragm 111 are exposed on the same plane. The vibration plate holding member 16 includes a contact surface portion 17 that is a portion that comes into contact with the biological surface, and a switch portion 13 that has a conduction point and is attached to the vibration plate holding member 16.

When operated by the user or the subject, the switch unit 13 generates a detection signal indicating that the user or the subject has operated. The switch unit 13 outputs the detection signal to the control unit 12 so that the recording unit 11 operates. Specifically, for example, the switch is kept on while the switch unit 13 is in contact with the subject. Further, when the switch unit 13 is not in contact with the subject, the switch is turned off.
The switch unit 13 may be a push-down switch, a capacitance-type switch, or a switch using various sensors such as a press sensor, an infrared ray, or an optical sensor. .

  Accordingly, it is possible to notify the subject or the user of the collection of the body sound and the timing for collecting the body sound without complicated procedures.

FIG. 5 is a flowchart showing an example of the operation of the biological sound collection apparatus 1 according to the present embodiment.
The switch state determination unit 121 determines whether or not the switch unit 13 is generating a detection signal (F101). When the switch part 13 is not producing | generating the detection signal (F101-NO), the control part 12 determines whether the recording part 11 is recording the test subject's biological sound (F110). On the other hand, when the switch part 13 is producing | generating the detection signal (F101-YES), the control part 12 instruct | indicates the sound collection of a test subject's body sound, and the start of a recording to the recording part 11 (F102). If the recording unit 11 is recording, step F102 is skipped and the process of step F103 is performed.

The control unit 12 secures an area for storing the first biological sound in the memory 116, and sets a first timing label (first chapter) indicating the first biological sound (F103).
Next, the control unit 12 outputs a first notification instruction signal to the timing notification unit 14. The signal generation unit 141 of the timing notification unit 14 reads the waveform of the notification sound from the memory 116 and generates a signal representing the first timing notification sound.

The signal generation unit 141 outputs a signal representing the generated first timing notification sound to the speaker 142. Based on the signal representing the first timing notification sound, for example, the speaker 142 notifies at least one of the subject and the user of the collection timing of the body sound generated by inspiration, and notifies the first timing with the notification sound (F104). ).
After outputting the first notification instruction signal to the signal generation unit 141, the control unit 12 waits for a predetermined time, for example, about 1 to 10 seconds (F105), and stores the first biological sound, for example, inspiration in the memory 116. The first biological sound generated by the above is stored.

The switch state determination unit 121 determines whether or not the switch unit 13 is generating a detection signal (F106). When the switch part 13 is not producing | generating the detection signal (F106-NO), the control part 12 determines whether the recording part 11 is recording the test subject's biological sound (F110). On the other hand, when the switch unit 13 is generating a detection signal (F106-YES), the control unit 12 secures an area for storing the second biological sound in the memory 116, and displays the second biological sound. The timing label (second chapter) is set (F107).

  Next, the control unit 12 outputs a second notification instruction signal to the timing notification unit 14. The signal generation unit 141 of the timing notification unit 14 reads the waveform of the notification sound from the memory 116 and generates a signal representing the second timing notification sound. The signal generation unit 141 outputs a signal representing the generated second timing notification sound to the speaker 142. Based on the signal representing the second timing notification sound, the speaker 142 notifies the second timing notification sound to, for example, at least one of the subject and the user of the expiration timing (F108).

  After outputting the second notification instruction signal to the signal generation unit 141, the control unit 12 waits for a predetermined time, for example, about 1 to 10 seconds (F109), and stores the second biological sound, for example, inspiration in the memory 116. The second biological sound generated by the above is stored. Thereafter, the process returns to Step F101.

When it determines with the switch part 13 not producing | generating the detection signal in step F101 and step F106, the control part 12 determines whether the recording part 11 is recording the test subject's biological sound (F110).
When the recording unit 11 has not recorded the body sound of the subject (F110-NO), the switch state determination unit 121 of the control unit 12 determines whether the switch unit 13 is generating a detection signal (F101). . On the other hand, when the recording unit 11 is recording the second biological sound of the subject (F110-YES), the control unit 12 outputs a stop instruction signal that causes the recording unit 11 to stop collecting and recording the biological sound of the subject. Output (F111).

  As described above, according to the present embodiment, it is possible to reliably notify the timing of collection of biological sounds. In addition, the biological sound can be stored in association with the collection timing of the biological sound. Furthermore, by notifying the notification sound with a sound or sound in a frequency band different from that of the body sound, the notification sound and the body sound can be easily separated, and the notification sound can be removed by simple means. In addition, since the notification sound itself can be registered as an arbitrary one, it is possible to notify the timing of collecting the biological sound with an arbitrary notification sound in accordance with the usage purpose of the user.

(Modification of the first embodiment)
Hereafter, the modification of the 1st Embodiment of this invention is demonstrated in detail, referring drawings.
In the modification of the first embodiment, a case where the notification sound notified by the biological sound collection device 1a is separated from the biological sound and the notification sound is removed will be described.

FIG. 6 is a schematic block diagram illustrating an example of a configuration of a biological sound collection device 1a according to a modification of the present embodiment.
Comparing the configuration of the biological sound collection device 1 in FIG. 2 with the configuration of the biological sound collection device 1a, the configuration of the data processing unit 115a of the recording unit 11a is different. Since other configurations are the same, description thereof is omitted.

  The data processing unit 115a includes a notification sound removing unit 1151a. When a digital signal in which the body sound input from the A / D unit 114 is mixed with the notification sound is input, the notification sound removing unit 1151a separates the body sound and the notification sound from the digital signal, and the notification sound Remove. Specifically, the notification sound removing unit 1151a performs canceling of the notification sound by adding a sound having an opposite phase to the notification sound in accordance with the collected body sound. The waveform data of the notification sound is stored in the memory 116 in advance. The data processing unit 115a performs notification sound canceling processing by adding an antiphase waveform from the memory 116 according to the waveform data. As the canceling processing technique performed by the data processing unit 115a, generally known canceling processing may be used.

  In the present embodiment, the notification sound is described as being stored in advance in the memory 116, but the present invention is not limited to this. For example, the doctor or user uses the sound collection unit 112 to store the notification sound in the memory 116 according to the use, and the timing notification unit 14 collects the body sound of the subject using the notification sound. You may notify a timing to at least one of a user or a test subject.

  Thereby, it is not necessary to notify the notification sound and the body sound with sounds or sounds in different frequency bands, the restriction on the notification sound can be reduced, and the degree of freedom of the notification sound can be increased.

  The notification sound may be directly notified to the subject or the user's ear using the earphone 2 or the like to at least one of the subject or the user. As a result, the notification sound and the body sound are not mixed, and the means for removing the notification sound in the notification sound removing unit 1151a can be reduced.

  Thus, according to the present embodiment, it is not necessary to notify the notification sound and the body sound with sounds or sounds in different frequency bands, the restriction on the notification sound can be reduced, and the degree of freedom of the notification sound can be increased. . Furthermore, since the notification sound itself can be registered as an arbitrary one, it is possible to notify the timing of collecting the biological sound with an arbitrary notification sound in accordance with the usage purpose of the user.

(Second Embodiment)
Hereinafter, a second embodiment of the present invention will be described in detail with reference to the drawings.
In the first embodiment, the case where the biological sound collection device 1 notifies the auditory sense using sound has been described. In the present embodiment, a case where the notification sound notified by the biological sound collection device 1b is notified of the timing of the biological sound collection based on the notification frequency of the timing notification in the collection of the biological sound without using the switch unit 13 will be described. .

FIG. 7 is a schematic block diagram showing an example of the configuration of the biological sound collection apparatus 1b according to the second embodiment of the present invention.
When the configuration of the biological sound collection device 1 of the first embodiment shown in FIG. 2 is compared with the configuration of the biological sound collection device 1b of the present embodiment, the switch state determination unit 121 of the switch unit 13 and the control unit 12 is deleted. In addition, a repeat count determination unit 122b is added to the control unit 12b. Since other configurations are the same, description thereof is omitted.

  The control unit 12b generates a detection signal when the main power of its own device is turned on. The control unit 12b outputs an instruction signal for instructing the start of recording to the recording unit 11 based on the generated detection signal. Further, the control unit 12b outputs a first notification instruction signal that instructs to notify the first timing to the timing notification unit 14 based on the generated detection signal. Based on the generated detection signal, the control unit 12b outputs to the timing notification unit 14 a second notification value instruction signal that instructs to notify the second timing. A detailed description of the control unit 12b will be described later with reference to a flowchart shown in FIG.

  The control unit 12b includes a repetition number determination unit 122b. The repetition count determination unit 122b determines whether or not the first and second timing notifications are notified a predetermined number of times, for example, twice. When the predetermined number of timing notifications are notified, the repetition number determination unit 122b causes the recording unit 11 to end the sound collection and causes the timing notification unit 14 to end the timing notification for collecting the body sound. On the other hand, when the predetermined number of timing notifications are not notified, the repetition number determination unit 122b continues to cause the timing notification unit 14 to notify the timing notification for collecting the body sound.

FIG. 8 is a flowchart showing an example of the operation of the biological sound collection apparatus 1b according to this embodiment.
When the control unit 12b generates a detection signal indicating that the main power is turned off, the control unit 12b notifies the recording unit 11 of an instruction to start recording (F201). The number-of-repetitions determination unit 122b determines whether a notification of expiration and inspiration timing has been notified a predetermined number of times, for example, twice (F202). When the predetermined number of timing notifications are notified (F202-YES), the control unit 12b ends the recording in the recording unit 11 and ends the timing notification for collecting the body sound in the timing notification unit 14 (F209). On the other hand, when the predetermined number of timing notifications have not been notified (F202-NO), the control unit 12b continues to cause the timing notification unit 14 to notify the timing notification for collecting the body sound.

  After step F202-No, the operations from step F103 to step F105 and the subsequent operations from step F107 to step F109 are performed. In order to perform the same operation as the biological sound collection apparatus 1 of the first embodiment shown in FIG. Description is omitted. In this case, in this embodiment, the control unit 12 is replaced with the control unit 12b.

  Thus, according to the present embodiment, by omitting the switch unit 13, the housing 10 and the internal configuration of the biological sound collection device 1b can be realized in a compact and simple manner.

(Third embodiment)
Hereinafter, the third embodiment of the present invention will be described in detail with reference to the drawings.
In the first embodiment, the case where the biological sound collection device 1 notifies the auditory sense using sound has been described. In the present embodiment, a case will be described in which the time interval for notifying the timing of body sound collection is changed using a threshold value, and the timing of body sound collection is notified.

  When the configuration of the biological sound collection device 1 of the first embodiment shown in FIG. 3 is compared with the configuration of the biological sound collection device 1 of the present embodiment, the description is omitted because it is the same. The operation of the control unit 12 is different and will be described.

  The control unit 12 compares the first biological sound with the first threshold stored in the memory 116, and determines whether or not the first biological sound is larger than the first threshold. When the first biological sound is larger than the first threshold, it is determined whether or not the first biological sound is equal to or lower than the second threshold. On the other hand, when the first biological sound is smaller than the first threshold, the control unit 12 continues recording. In addition, when the first biological sound becomes larger than the first threshold and then becomes equal to or lower than the second threshold, the switch state determination unit 121 of the control unit 12 determines whether the switch unit 13 generates a detection signal. Determine whether or not. Here, a relationship of first threshold ≧ second threshold is assumed.

  The control unit 12 compares the second biological sound with the first threshold stored in the memory 116, and determines whether or not the second biological sound is larger than the first threshold. When the second biological sound is larger than the first threshold, it is determined whether or not the second biological sound is equal to or lower than the second threshold. On the other hand, when the second biological sound is smaller than the first threshold, the control unit 12 continues recording. In addition, when the second biological sound becomes larger than the first threshold and then becomes equal to or lower than the second threshold, the switch state determination unit 121 of the control unit 12 determines whether the switch unit 13 generates a detection signal. Determine whether or not. Here, a relationship of first threshold ≧ second threshold is assumed.

  FIG. 9 is a flowchart for explaining an example of the operation of the biological sound collection apparatus 1 according to this embodiment. The operations from Step F101 to Step F104 are the same as those of the biological sound collection apparatus 1 of the first embodiment shown in FIG.

  The control unit 12 compares the first biological sound collected by the recording unit 11 with the first threshold stored in the memory 116, and determines whether or not the first biological sound is larger than the first threshold. Is determined (F305). When the first biological sound is larger than the first threshold (F305-YES), it is determined whether or not the first biological sound is equal to or lower than the second threshold (F306).

  On the other hand, when the first biological sound is smaller than the first threshold (F305-NO), the control unit 12 continues recording. Further, when the first biological sound becomes larger than the first threshold value and then becomes equal to or smaller than the second threshold value (F306-YES), the switch state determination unit 121 of the control unit 12 causes the switch unit 13 to detect the detection signal. Is determined (F307). On the other hand, when the first biological sound is larger than the second threshold (F306-NO), the control unit 12 continues recording. Here, a relationship of first threshold ≧ second threshold is assumed.

  When the switch part 13 is not producing | generating the detection signal (F307-NO), the control part 12 determines whether the recording part 11 is recording the test subject's biological sound (F312). On the other hand, when the switch unit 13 is generating a detection signal (F307-YES), the control unit 12 secures an area for storing the second biological sound in the memory 116, and displays the second biological sound. Timing label (second chapter) is set (F308). The control unit 12 outputs a second notification instruction signal to the signal generation unit 141. The timing notification unit 14 notifies a second timing notification for collecting the second biological sound (F309). The recording unit 11 records the second biological sound in the memory 116.

  The control unit 12 compares the second biological sound with the first threshold stored in the memory 116, and determines whether or not the second biological sound is greater than the first threshold (F310). When the second biological sound is larger than the first threshold (F310-YES), it is determined whether or not the second biological sound is equal to or lower than the second threshold (F311). On the other hand, when the second biological sound is equal to or lower than the first threshold (F310-NO), the control unit 12 continues recording. If the second biological sound is less than or equal to the second threshold (F311—YES), the process returns to step F101. On the other hand, when the second biological sound is larger than the second threshold (F311-NO), the control unit 12 continues recording.

When it determines with the switch part 13 not producing | generating the detection signal in step F101 and step F307, the control part 12 determines whether the recording part 11 is recording the test subject's biological sound (F312).
When the recording unit 11 has not recorded the body sound of the subject (F312—NO), the process returns to step F101. On the other hand, when the recording unit 11 is recording the body sound of the subject (F312—YES), the control unit 12 outputs a stop instruction signal for stopping the sound collection and recording of the body sound of the subject to the recording unit 11 ( F313).

  Thus, according to this embodiment, since the timing notification of the body sound according to the patient's pace can be performed, the convenience can be improved. Moreover, the amount of memory used can be reduced by recording the body sound not at a predetermined time but at the pace of the patient. Even when the patient inhales or exhales over a longer time than the predetermined time, the timing can be notified appropriately.

(Modification of the third embodiment)
Hereinafter, a modification of the third embodiment of the present invention will be described in detail with reference to the drawings.
In the third embodiment, the case has been described in which the time interval for notifying the timing of body sound collection is changed using a threshold value and the timing of body sound collection is notified. In the modified example of the third embodiment, a case will be described in which the time interval for notifying the timing of body sound collection is changed using a threshold value and the timing for body sound collection is notified without using the switch unit 13.

  When the configuration of the biological sound collection device 1b according to the modification of the third embodiment is compared with the configuration of the biological sound collection device 1b according to the second embodiment, the configuration is the same and the description thereof is omitted.

    The control unit 12b generates a detection signal when the main power of its own device is turned on. The control unit 12b outputs an instruction signal for instructing the start of recording to the recording unit 11 based on the generated detection signal. Further, the control unit 12b outputs a first notification instruction signal that instructs to notify the first timing to the timing notification unit 14 based on the generated detection signal. Based on the generated detection signal, the control unit 12b outputs to the timing notification unit 14 a second notification value instruction signal that instructs to notify the second timing. A detailed description of the control unit 12b will be described later with reference to a flowchart shown in FIG.

FIG. 10 is a flowchart illustrating an example of the operation of the biological sound collection device 1b according to the modification of the third embodiment.
Step F201 and step F202 are the same as the respective steps in the operation of the biological sound collection device 1b according to the second embodiment in FIG. Further, as the next operation after step F202, the operations of step F103 and step F104 are performed. Since the operations are the same as the respective steps in the operation of the biological sound collecting apparatus 1 according to the first embodiment of FIG. . At this time, the control unit 12 is replaced with the control unit 12b. Further, as the next operation after Step F104, Step F305 and Step F306 are performed, and as the next operation, the operations from Step F308 to Step 311 and Step 313 are performed. The biological sound collecting apparatus 1 according to the third embodiment in FIG. Since it is the same as each step in the operation of, the description is omitted.

  Thus, according to this embodiment, since the timing notification of the body sound according to the patient's pace can be performed, the convenience can be improved. Moreover, the amount of memory used can be reduced by recording the body sound not at a predetermined time but at the pace of the patient. Even when the patient inhales or exhales over a longer time than the predetermined time, the timing can be notified appropriately. Furthermore, by omitting the switch unit 13, the housing 10 and the internal configuration of the biological sound collection device 1b can be realized in a compact and simple manner.

(Fourth embodiment)
Hereinafter, a fourth embodiment of the present invention will be described in detail with reference to the drawings.
In the first embodiment, the case where the biological sound collection device 1 notifies the auditory sense using sound has been described. In the present embodiment, a case will be described in which the body sound collection device 1 performs timing notification for body sound collection and records only a desired portion.

  When the configuration of the biological sound collection device 1 according to the present embodiment is compared with the configuration of the biological sound collection device 1 according to the first embodiment, the configuration is the same, and thus the description thereof is omitted. Since the operation of the control unit 12 is different, the operation will be described with reference to the flowchart shown in FIG.

FIG. 11 is a flowchart showing an example of the operation of the biological sound collection apparatus 1 according to the present embodiment.
The switch state determination unit 121 determines whether or not the switch unit 13 is generating a detection signal (F501). When the switch part 13 is not producing | generating the detection signal (F501-NO), the control part 12 determines whether the recording part 11 is collecting the test subject's biological sound (F516). On the other hand, when the switch unit 13 is generating a detection signal (F501-YES), the control unit 12 instructs the recording unit 11 to start collecting the body sound of the subject (F502). If the recording unit 11 is collecting sound, step F502 is skipped and the process of step F503 is performed.

  The control unit 12 outputs a first notification instruction signal instructing to notify the first timing to the timing notification unit 14, and the timing notification unit 14 notifies the first timing of the first biological sound collection. (F503). The control unit 12 compares the first biological sound collected by the recording unit 11 with the first threshold stored in the memory 116, and determines whether or not the first biological sound is larger than the first threshold. Is determined (F504). When the first biological sound is larger than the first threshold (F504-YES), the control unit 12 causes the recording unit 11 to start recording (F505). On the other hand, when the first biological sound is equal to or lower than the first threshold (F504-NO), the control unit 12 continues to determine whether or not the first biological sound is larger than the first threshold (F504). Next, the control unit 12 secures an area for storing the first body sound in the memory 116, and sets a first timing label (first chapter) indicating the first body sound (F506).

  The control unit 12 compares the first biological sound collected by the recording unit 11 with the second threshold stored in the memory 116, and whether or not the first biological sound is equal to or lower than the second threshold. Is determined (F507). When the first biological sound is equal to or lower than the second threshold (F507-YES), the control unit 12 causes the recording unit 11 to stop recording (sound collection continues) (F508). On the other hand, when the first biological sound is larger than the second threshold (F507-NO), the control unit 12 continues recording. Here, a relationship of first threshold ≧ second threshold is assumed. The switch state determination unit 121 of the control unit 12 determines whether or not the switch unit 13 is generating a detection signal (F509).

  When the switch unit 13 does not generate a detection signal (F509-NO), the control unit 12 determines whether or not a biological sound is collected (F516). When the switch unit 13 is generating a detection signal (F509-YES), the control unit 12 outputs a second notification instruction signal instructing to notify the second timing to the timing notification unit 14 and outputs the timing. The notification unit 14 notifies the second timing of the second biological sound collection (F510). The control unit 12 compares the second biological sound collected by the recording unit 11 with the first threshold stored in the memory 116, and determines whether the second biological sound is greater than the first threshold. Is determined (F511). When the second biological sound is larger than the first threshold (F511-YES), the control unit 12 causes the recording unit 11 to start recording (F512). On the other hand, when the body sound is equal to or lower than the second threshold (F511-NO), the control unit 12 continues to determine whether or not the second body sound is larger than the first threshold (F511). Next, the control unit 12 secures an area for storing the second biological sound in the memory 116, and sets a second timing label (second chapter) indicating the second biological sound (F513).

The control unit 12 compares the biological sound collected by the recording unit 11 with the second threshold stored in the memory 116 and determines whether the biological sound is equal to or lower than the second threshold ( F514). When the biological sound is equal to or lower than the second threshold (F514-YES), the control unit 12 causes the recording unit 11 to stop recording (sound collection is continued) (F515). Thereafter, the process returns to Step F501. On the other hand, when the second biological sound is larger than the second threshold (F514-NO), the control unit 12 continues recording.
When it determines with the switch part 13 not producing | generating the detection signal in step F501 and step F509, the control part 12 determines whether the sound recording part 11 is collecting the test subject's body sound (F516).
When the recording unit 11 is not collecting the body sound of the subject (F516-NO), the process returns to step F501. On the other hand, when the recording unit 11 is collecting the body sound of the subject (F516-YES), the control unit 12 outputs a stop instruction signal to stop the sound collection of the body sound of the subject to the recording unit 11 (F517). ).

  As described above, according to the present embodiment, not only can the timing of the body sound be synchronized with the patient's pace, but also the unnecessary part of the body sound (silent section, etc.) can be omitted. The amount of use can be reduced.

(Modification of the fourth embodiment)
In the modification of the fourth embodiment, a case will be described in which the biological sound collection device 1b notifies the timing of biological sound collection without using the switch unit 13, and only a desired portion is recorded.

  When the configuration of the biological sound collection device 1b according to the modification of the fourth embodiment is compared with the configuration of the biological sound collection device 1b according to the second embodiment, the description thereof is omitted. The operation of the control unit 12b is different and will be described with reference to the flowchart shown in FIG.

FIG. 12 is a flowchart showing an example of the operation of the biological sound collection apparatus 1b according to this embodiment.
The control unit 12b generates a detection signal when the main power of its own device is turned on. Based on the generated detection signal, the control unit 12b outputs an instruction signal for instructing the start of sound collection to the recording unit 11 (F601).

  The repetition count determination unit 122b determines whether the first and second timing notifications are notified a predetermined number of times, for example, twice (F602). When the predetermined number of timing notifications have been notified (F602-YES), the control unit 12b causes the recording unit 11 to end collecting the body sounds and causes the timing notification unit 14 to end timing notifications for collecting body sounds. (F615). On the other hand, when the predetermined number of timing notifications are not notified (F602-NO), the control unit 12b outputs a first notification instruction signal instructing notification of the first timing to the timing notification unit 14, The timing notification unit 14 notifies the first timing of the first biological sound collection (F603).

  The control unit 12b compares the first biological sound collected by the recording unit 11 with the first threshold stored in the memory 116, and determines whether or not the first biological sound is larger than the first threshold. Is determined (F604). When the first biological sound is larger than the first threshold (F604-YES), the control unit 12b instructs the recording unit 11 to start recording (F605). On the other hand, when the first biological sound is equal to or lower than the first threshold (F604-NO), the control unit 12b continues to determine whether or not the first biological sound is larger than the first threshold (F604). Next, the control unit 12b secures an area for storing the first body sound in the memory 116, and sets a first timing label (first chapter) indicating the first body sound (F606). The control unit 12b determines whether or not the first biological sound collected by the recording unit 11 is equal to or lower than the second threshold (F607). When the first biological sound is equal to or lower than the second threshold (F607-YES), the control unit 12b causes the recording unit 11 to stop recording (sound collection continues) (F608). On the other hand, when the first biological sound is larger than the second threshold (F607-NO), the control unit 12b continues recording.

  The control unit 12b outputs a second notification instruction signal instructing to notify the second timing to the timing notification unit 14, and the timing notification unit 14 notifies the second timing of the second biological sound collection. (F609). The control unit 12b compares the second biological sound collected by the recording unit 11 with the first threshold stored in the memory 116, and determines whether or not the second biological sound is greater than the first threshold. Is determined (F610). When the second biological sound is larger than the first threshold (F610-YES), the control unit 12b instructs the recording unit 11 to start recording (F611). On the other hand, when the second biological sound is equal to or lower than the first threshold (F610-NO), the control unit 12b continues to determine whether or not the second biological sound is larger than the first threshold (F610). Next, the control unit 12b secures an area for storing the second biological sound in the memory 116, and sets a second timing label (second chapter) indicating the second biological sound (F612). The control unit 12b determines whether or not the second biological sound collected by the recording unit 11 is equal to or lower than the second threshold (F613). When the second biological sound is equal to or lower than the second threshold (F613-YES), the control unit 12b causes the recording unit 11 to stop recording (sound collection continues) (F614). Thereafter, the process returns to Step F602. On the other hand, when the second biological sound is larger than the second threshold (F613-NO), the control unit 12b continues recording.

  As described above, according to the present embodiment, not only can the timing of the body sound be synchronized with the patient's pace, but also the unnecessary part of the body sound (silent section, etc.) can be omitted. The amount of use can be reduced. Furthermore, by omitting the switch unit 13, the housing 10 and the internal configuration of the biological sound collection device 1b can be realized in a compact and simple manner.

The first threshold and the second threshold in each embodiment may be set by sex, age, region, country, physique, physical condition, and the like. Further, different thresholds may be used for the first threshold in the collection of the first biological sound and the first threshold in the second biological sound, and in the second biological sound and the second threshold in the collection of the first biological sound. A different threshold may be used for the second threshold.
In addition, although the timing is notified in the collection of the first biological sound and the collection of the second biological sound, a countdown may be used before the timing is notified.
Furthermore, a temporary standby between the collection of the first body sound and the collection of the second body sound, for example, an operation of holding the breath between the collection of the body sound of expiration and the collection of the body sound of inspiration May be added.
Further, in the present embodiment, the timing notified by the timing notification unit 14 is not limited to the timing of expiration and inspiration, and may be the timing of extending the joint and the timing of bending the joint, and may be two pairs of human bodies. The timing can be notified if it is a collection of body sounds accompanied by movements (for example, bending of a joint, breathing of a lung, etc.).

  In addition, you may make it implement | achieve part or all of the biological sound collection device in embodiment mentioned above with a computer. In that case, the program for realizing the control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by a computer system and executed. Here, the “computer system” is a computer system built in the biological sound collection device, and includes an OS and hardware such as peripheral devices.

  The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” is a medium that dynamically holds a program for a short time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, In such a case, a volatile memory inside a computer system serving as a server or a client may be included and a program that holds a program for a certain period of time.

  The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  Moreover, you may implement | achieve part or all of the biological sound collection device in embodiment mentioned above as integrated circuits, such as LSI (Large Scale Integration). Each functional block of the biological sound collection device may be individually made into a processor, or a part or all of them may be integrated into a processor. Further, the method of circuit integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. Further, in the case where an integrated circuit technology that replaces LSI appears due to progress in semiconductor technology, an integrated circuit based on the technology may be used.

  As described above, the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to the above, and various design changes and the like can be made without departing from the scope of the present invention. It is possible to

  The sound collection unit 112 collects (collects) the body sound of the subject. The timing notification unit 14 notifies a plurality of timings at which the biological sound is generated with sound. The control unit (12, 12b) determines the timing.

  The notification sound removal unit 1151a removes the sound notified by the timing notification unit 14 from the biological sound collected by the sound collection unit, and generates a removed biological sound. The recording unit 11 records the biological sound.

  The biological sound collection device (1, 1a) further includes a switch unit 13 that generates a detection signal. The sound collection unit 112 includes a diaphragm 111 that abuts on a living body and vibrates according to the body sound, and a diaphragm holding member 16 that surrounds and supports the same edge of the diaphragm 111. The switch unit 13 is attached to the diaphragm holding member 16. The control unit 12 determines at least the first timing among the timings based on the detection signal.

  The switch unit 13 is attached to a portion of the diaphragm holding member 16 that contacts the living body surface.

  The timing notification unit 14 notifies the subject using the earphone 2 of the timing at which the sound collection unit 112 collects the body sound.

  The said control part (12, 12b) determines the said timing using the magnitude | size of the said body sound which the said sound collection part 112 collects.

  The control unit (12, 12b) determines when the biological sound collected by the sound collection unit 112 is less than a second threshold value that is less than the first threshold value after becoming greater than a first threshold value. Timing.

  The control unit (12, 12b) changes the first threshold value or the second threshold value based on at least one of age information, sex information, physical information, and physical condition information of the subject.

  The biological sound collection method includes a sound collection procedure for collecting a biological sound of a subject, a timing notification procedure for notifying a plurality of timings for generating the biological sound by sound, and a control procedure for determining the timing.

  The biological sound collection device (1, 1a, 1b) further includes a recording unit 11 that records the biological sound collected by the sound collection unit 112.

  Body sound collection device (1, 1a, 1b) Notification sound removal section 1151a for removing the sound notified by the timing notification section 14 from the body sound collected by the sound collection section 112 and generating a removed body sound Further prepare.

1, 1a, 1b Body sound collection device 2 Earphone 3 Terminal device 10 Housing 11 Recording unit 111 Diaphragm 112 Sound collection unit 113 Microphone 114 A / D unit 115 Data processing unit 116 Memory 12 Control unit 121 Switch state determination unit 13 Switch Unit 14 Timing notification unit 141 Signal generation unit 142 Speaker 15 D / A unit 16 Diaphragm holding member 17 Contact surface unit 1151a Notification sound removal unit 12b Control unit 122b Repeat count determination unit

Claims (5)

A sound collection unit for collecting the body sound of the subject;
A plurality of timings for generating the biological sound, a timing notification unit for notifying by sound;
A biological sound collection device comprising: a control unit that determines the timing. The biological sound collecting apparatus according to claim 1, further comprising a recording unit that records the biological sound collected by the sound collecting unit. The living body according to claim 1, further comprising a notification sound removing unit that removes the sound notified by the timing notification unit from the biological sound collected by the sound collection unit and generates a removed biological sound. Sound collection device. A switch unit for generating a detection signal;
The sound collector is
A diaphragm that abuts on a living body and vibrates according to the body sound;
A diaphragm holding member that surrounds and supports the same edge of the diaphragm;
Have
The switch unit is attached to the diaphragm holding member,
The controller is
The biological sound collection device according to claim 1, wherein at least a first timing among the timings is determined based on the detection signal. The controller is
The biological sound collection apparatus according to claim 1, wherein the timing is determined using a magnitude of the biological sound collected by the sound collection unit.

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