WO2017159752A1 - Stéthoscope - Google Patents

Stéthoscope Download PDF

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Publication number
WO2017159752A1
WO2017159752A1 PCT/JP2017/010506 JP2017010506W WO2017159752A1 WO 2017159752 A1 WO2017159752 A1 WO 2017159752A1 JP 2017010506 W JP2017010506 W JP 2017010506W WO 2017159752 A1 WO2017159752 A1 WO 2017159752A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
stethoscope
human body
chest piece
sensor
Prior art date
Application number
PCT/JP2017/010506
Other languages
English (en)
Japanese (ja)
Inventor
晋平 小川
Original Assignee
Ａｍｉ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2016242407A external-priority patent/JP6363158B2/ja
Application filed by Ａｍｉ株式会社 filed Critical Ａｍｉ株式会社
Priority to US16/086,008 priority Critical patent/US11116473B2/en
Publication of WO2017159752A1 publication Critical patent/WO2017159752A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B7/00—Instruments for auscultation
    • A61B7/02—Stethoscopes
    • A61B7/04—Electric stethoscopes

Definitions

  • the present invention relates to a stethoscope that can recognize that the chestpiece is in contact with the human body and can be recognized by the person and the third party who are applying the chestpiece to itself.
  • the patient When performing a diagnosis using a stethoscope in telemedicine using a videophone, etc., the patient makes contact with his / her body with a stethoscope having a chestpiece with a built-in microphone, and converts heart sounds into electrical signals using the microphone. A method of transmitting this to a remote doctor by communication is used.
  • the present invention aims to provide a stethoscope having a structure that allows a remote doctor or the like to recognize that a chestpiece of a stethoscope is appropriately in contact with a body surface.
  • the invention according to claim 1 is a sensor that detects contact by abutting with a stethoscope unit including a chest piece and a microphone provided in the chest piece or in a hollow tube connected to the chest piece.
  • a stethoscope unit including a chest piece and a microphone provided in the chest piece or in a hollow tube connected to the chest piece.
  • the human body is fixed to the chest piece so that the contact end is located on the side that is the same as the contact surface of the chest piece with the human body or slightly away from the human body.
  • a stethoscope having a sensor for detecting the contact of The sensor includes a sensor that detects a change in electrical resistance caused by contact of the contact end with the human body, a sensor that detects pressure at which the contact end contacts the human body, a sensor that detects the temperature of the human body using the contact end, For example, a push switch in which the contact end is pressed and the switch is turned on by contacting the switch is exemplified.
  • the contact end of the sensor is provided at three locations around the chest piece.
  • the contact surface of the chest piece is circular, the contact ends of the sensor are provided at two locations, and a line connecting the contact ends.
  • the projection onto the plane including the abutting surface is formed so as to pass through the center of the chest piece or the vicinity of the center.
  • the contact end of the sensor is located slightly away from the human body than the contact surface of the chest piece to the human body.
  • the sensor has a plurality of contact ends, and the chestpiece is in contact with the human body by all the contact ends on the side opposite to the contact surface of the human body.
  • a lamp that shines when detected is provided.
  • a sixth aspect of the present invention is the stethoscope according to the first to fourth aspects, wherein the sensor has a plurality of contact ends, and each of the contact ends is opposite to the contact surface of the human body of the chest piece. In each case, a lamp is provided that shines when it is detected that the human body is touched by the contact end.
  • the contact end of the sensor in the stethoscope, is relatively movable along a contact direction with respect to the chest piece, and the human body of the chest piece is formed by an elastic body. It is biased so as to be positioned slightly away from the human body relative to the contact surface, and is configured to move to the contact surface side by pressing the chest piece against the human body.
  • the sensor is an electrocardiogram measurement electrode including at least a positive electrode and a negative electrode, and a surface of the electrode that contacts the human body forms the contact end. To do.
  • the present invention has the following effects.
  • the chest piece touches the human body. Contact to the human body is detected by the contact end of the sensor.
  • the position of the contact end when detecting contact of the sensor with the human body is located slightly away from the human body contact surface of the chest piece, contact of the sensor when the chest piece is pressed Contact to the human body is detected by the edge.
  • the chest piece is also in contact with the human body, and the chest piece is sent to itself by sending the sensor detection result by light, sound, communication notification, etc. Even the person who is hit and a doctor who is remote can recognize that the chestpiece of the stethoscope has touched the human body.
  • the contact end of the sensor is provided at three locations around the chest piece, the contact surface of the chest piece touches the human body by the surface when the three contact ends touch the human body. In other words, it is possible to detect that the chest piece has contacted the human body more appropriately.
  • the two chests contact the human body. Since the contact surface of the piece also touches the human body by the surface, it is possible to detect that the chest piece has come into contact with the human body appropriately.
  • the chest piece is Since the contact with the human body is detected by the abutting end of the sensor when pressed against the human body, the contact of the chest piece with the human body can be detected more reliably.
  • the invention according to claim 4 confirms that the person who is touching the chestpiece is properly in contact with the lamp because the lamp shines when all of the abutting ends are in contact with the human body. it can. Also, the remote person can recognize that the chestpiece has touched the human body by looking at an image such as a videophone. Further, compared to the case of notifying that contact has been made by communication or the like, it can be formed with a simple structure, which can contribute to cost reduction. According to the fifth aspect of the present invention, it is known that the lamp is lit when the human body is touched with respect to each of the plurality of abutting ends. It can be recognized that the chestpiece has come into contact with the human body. Also, it can be formed with a simple structure and can be manufactured at low cost.
  • the contact end of the sensor comes into contact with the human body and is detected only after further pressing from the state in which the chest piece is in contact, the chest piece is more reliably brought into contact with the human body. Can be detected. At this time, it is not necessary to deform the human body surface. In particular, even if the position of the contact end when detecting contact of the sensor with the human body is the same as the position of the contact surface of the chest piece to the human body, the sensor will not contact the human body only when pressure is applied to the chest piece. Therefore, it is possible to detect a state in which the chest piece is firmly in contact with the human body surface.
  • the conventional measurement is performed separately.
  • the heart sound and the electrocardiogram signal can be acquired at the same time by one operation.
  • FIG. (A) is a perspective view of the surface side of the stethoscope with an electrocardiogram measurement electrode according to Embodiment 1
  • (b) is a perspective view of the back surface side of the stethoscope with an electrocardiogram measurement electrode according to Embodiment 1.
  • FIG. (A) is the side view before the body contact of the stethoscope with the electrode for electrocardiogram measurement which concerns on Embodiment 1
  • (b) is the side view during the body contact of the stethoscope with the electrode for electrocardiogram measurement which concerns on Embodiment 1.
  • FIG. is there.
  • (A) is a perspective view of the surface side of the stethoscope with an electrode for electrocardiogram measurement according to Embodiment 2
  • (b) is a perspective view of the back side of the stethoscope with an electrode for electrocardiogram measurement according to the embodiment. It is a perspective view of the surface side of the stethoscope with the electrode for electrocardiogram measurement which concerns on a 1st modification.
  • (A) is a perspective view of the surface side of the stethoscope with an electrocardiogram measurement electrode according to a second modification
  • (b) is a side view of the stethoscope with an electrocardiogram measurement electrode according to a second modification. .
  • FIG. 1A shows a perspective view of the front side of the stethoscope X according to the present embodiment
  • FIG. 1B shows a perspective view of the back side of the stethoscope X.
  • the stethoscope X includes a stethoscope unit 10, sensors 20a, 20b, and 20c, an electric cable 30, and a notification unit 40.
  • the stethoscope unit 10 has substantially the same structure as a chest piece portion of a general diaphragm type stethoscope, but has a built-in microphone for converting sound into an electric signal.
  • the sensors 20a, 20b, and 20c are formed by push switches arranged around the stethoscope unit 10 in a regular triangle shape.
  • the push switch constituting each sensor 20a, 20b, 20c is arranged so that the end face of the push button faces the body side at the time of medical examination, and the end face of the push button constitutes a contact end that contacts the body.
  • the contact end is formed so as to be slightly away from the body of the diaphragm surface of the auscultation unit 10 in a state where the contact end is pushed by the body to be contacted and turned on. In the state where no force is applied to the contact end, the contact end may be located closer to the body side than the diaphragm surface.
  • the notification unit 40 includes an LED lamp 41 provided on the opposite side of the diaphragm surface of the chest piece portion of the stethoscope unit 10 and push switches constituting the sensors 20a, 20b, and 20c provided in the chest piece portion.
  • An electric circuit (not shown) for lighting the lamp 41 is configured.
  • the electric wire electrically connected to the notification unit 40 and the electric wire connected to the microphone built in the auscultation unit 10 are accommodated in the electric cable 30.
  • a predetermined electrical connector is connected to the base end of each electric wire located at the base end of the electric cable 30 (not shown).
  • the measurer himself measures his / her body.
  • the measurer connects an electric connector at the base end of the electric cable 30 (not shown) to a video phone or the like.
  • the diaphragm surface of the stethoscope unit 10 is pressed against an appropriate position near the heart of the measurement person.
  • the hand of the measurer is not drawn so that the stethoscope X is not hidden, but actually, the measurer holds and presses it with his hand.
  • the contact end surfaces of the push buttons of the sensors 20a, 20b, and 20c also simultaneously come into contact with the body surface near the heart.
  • FIG. 3A shows a side view of the stethoscope X just before contacting the body B
  • FIG. 3B shows a side view of the state in which the stethoscope unit 10 is firmly in contact with the body B.
  • the switches of the sensors 20a, 20b, and 20c are not turned on, and as shown in FIG.
  • the contact end face of the button switch constituting each sensor 20a, 20b, 20c is pushed in a direction away from the body more than the diaphragm face only by pushing the ten diaphragm faces into the body B, and each sensor 20a, 20b, The switch 20c is turned on.
  • the LED lamp 41 of the notification unit 40 is turned on.
  • the heart sound is converted into an electrical signal by the microphone in the stethoscope unit 10 and transmitted to a remote doctor or the like by a video phone or the like connected to the stethoscope X.
  • a remote doctor or the like can recognize that the chest piece of the stethoscope X is in contact with the body surface properly by illuminating the LED 41 by a videophone or the like, and diagnose the heart sound obtained through the microphone in this state. Can do.
  • the stethoscope X according to the present embodiment can visually recognize from the distant position that the diaphragm of the stethoscope is in contact with the body reliably by the light emission of the LED lamp 41. Become.
  • FIG. 4A shows a perspective view of the front side of a stethoscope Y with an electrocardiographic measurement electrode according to Embodiment 2
  • FIG. 4B shows a perspective view of the back side of the stethoscope Y.
  • the stethoscope Y includes a stethoscope unit 10, electrocardiogram measurement electrodes 20 d, 20 e, 20 f, and an electric cable 30.
  • the stethoscope unit 10 has substantially the same structure as a chest piece portion of a general diaphragm type stethoscope, but has a built-in microphone for converting sound into an electric signal.
  • the electrocardiogram measurement electrodes 20d, 20e, and 20f are electrodes arranged in a regular triangle around the stethoscope unit 10, and constitute a plus electrode, a minus electrode, and a ground electrode, respectively.
  • the electrocardiogram measurement electrodes 20d, 20e, and 20f are fixed in an elastomer cover that is integrally fixed to the stethoscope unit 10 on the back side, and the exposed surfaces of the electrocardiogram electrodes 20d, 20e, and 20f and the auscultation unit 10 are fixed.
  • the diaphragm surface is formed so as to lie on substantially the same plane.
  • the exposed surfaces of the electrocardiogram measurement electrodes 20d, 20e, and 20f are also appropriately brought into contact with the body surface.
  • Electric wires electrically connected to the respective electrocardiogram measurement electrodes 20 d, 20 e, and 20 f and electric wires connected to a microphone built in the auscultation unit 10 are accommodated in the electric cable 30.
  • a predetermined electrical connector is connected to the base end of each electric wire located at the base end of the electric cable 30 (not shown).
  • the measurer connects the electrical connector at the base end of the electrical cable 30 (not shown) to a measuring device or a communication device. Thereafter, in the same manner as the stethoscope X according to the first embodiment shown in FIG. 2, the stethoscope unit 10 is pressed to an appropriate position on the upper surface of the sternum near the heart of the measurement subject. When the stethoscope unit 10 is pressed, the exposed surfaces of the electrocardiogram measuring electrodes 20d, 20e, and 20f having the exposed surface on the same surface simultaneously come into contact with the upper surface of the sternum near the heart.
  • Each of the electrocardiogram measurement electrodes 20d, 20e, and 20f has a negative pole in the upper right portion, a ground pole in the upper left portion, and a positive pole in the lower portion when they are in contact with each other as shown in FIG.
  • the stethoscope unit 10 obtains an electrical signal obtained by converting the sound around the heart by the built-in microphone, and an electrical signal for obtaining an electrocardiogram is obtained from each of the electrocardiogram measurement electrodes 20d, 20e, and 20f. These electric signals are sent to the measuring device and the communication device.
  • the stethoscope X with an electrocardiogram measurement electrode can simultaneously obtain a sound signal of a heart sound and an electric signal for an electrocardiogram in a single operation, and the burden on the measurer and the examinee is reduced. Can be reduced. And by receiving the electrical signal for the electrocardiogram, it is possible to know that the diaphragm of the stethoscope is securely in contact with the body, so by receiving this electrical signal even at a remote location, It becomes possible to know whether or not the diaphragm of the stethoscope is in contact with the body.
  • all the sensors 20a, 20b, and 20c are formed so as to turn on the LED lamp 41 when contact with the body is detected.
  • Each of the sensors 20a, 20b, and 20c may be provided with LED lamps 41a, 41b, and 41c that emit light when contact with the body is detected. In this case, it is only necessary to determine that the diaphragm surface has surely contacted the body when all of the three LED lamps 41a, 41b, and 41c are lit.
  • the position of the contact end when a sensor detects the contact to a human body is being fixed with respect to the chest piece, the position of the said contact end is relative along the contact direction of a chest piece. May be movable.
  • a stethoscope having such a structure a perspective view of a stethoscope Z is shown in FIG. 6 (a), and a side view thereof is shown in FIG. 6 (b).
  • a cylindrical cap 21 is fixed to a cylindrical protruding portion in which a microphone on the back surface of the diaphragm surface is built so as to be movable in a direction perpendicular to the chest piece surface.
  • the cap 21 is formed so as not to be pulled upward in the drawing by a retaining structure (not shown), and a compression spring 22 is provided between the lower side of the cap 21 and the back side surface of the diaphragm surface, and the compression spring 22 is connected to the cap 21. Is urged away from the diaphragm surface.
  • the LED lamp 41 of the notification unit 40 is provided on the upper surface of the cap 21 in the drawing.
  • the sensors 20g and 20h are spherical electrodes at the contact ends, and the LED 41 is turned on when both electrodes touch the body.
  • the sensors 20g and 20h are fixed to the cap 21 through the arms 23 and 23.
  • the contact ends of the sensors 20g and 20h are positioned on the side farther from the body than the diaphragm surface by pressing the compression spring 22 in a state where no force is applied, while the cap 21 is pushed toward the diaphragm surface side to contract the compression spring. Thus, it is formed so as to protrude to the body side from the diaphragm surface.
  • the stethoscope Z is light and the diaphragm surface is only in contact with the body, the contact ends of the sensors 20g and 20h are separated from the body, and the sensors 20g and 20h do not detect contact with the body.
  • the diaphragm surface is brought into contact with the body, the cap 21 is further pushed toward the body to apply pressure, and the compression spring 22 is contracted, the contact ends of the sensors 20g and 20h are brought into contact with the body, and the sensors 20g and 20h are brought into contact with the body. Detects contact. That is, when the contact end of the sensor is positioned away from the body relative to the diaphragm surface, the contact end of the sensor can be brought into contact with the body without pushing the diaphragm surface into the body. Even when it is difficult to deform, it can be recognized that the diaphragm surface is in contact with the body with a sufficient contact pressure.
  • FIG. (A) It is good also considering the contact end of a sensor as two points like the stethoscope Z shown to (b). In this case, when a line segment connecting the contact points of the two contact ends to the body is projected onto a plane surface including the diaphragm surface, the projected line segment passes through the chord of the circular diaphragm surface. It is preferable that it passes through the center of the circle or near the center.
  • the microphone of the stethoscope part 10 is incorporated in the chest piece, it is made to transmit the sound from a chest piece through a hollow tube in the electric cable 30, and the inside of the said hollow tube or hollow A microphone may be provided at the proximal end of the tube.
  • the contact end surface of each of the electrocardiogram measurement electrodes 20d, 20e, and 20f is arranged slightly behind the diaphragm surface of the chest piece, and the chest piece must be pressed.
  • the electrocardiogram measurement electrodes 20d, 20e, and 20f may be prevented from coming into contact with the body so that the diaphragm surface can be surely contacted with the human body.
  • the exposed surfaces of the electrocardiogram measurement electrodes 20a, 20b, 20 may be slightly projected from the diaphragm surface of the chest piece.
  • the electrocardiogram measurement electrodes 20a, 20b, 20c are pressed by the human body, and the electrocardiogram measurement electrodes 20a, 20b, 20c.
  • the contact with the human body can be strengthened.
  • the electrocardiogram measurement electrodes 20a, 20b, and 20c are arranged in an equilateral triangle. However, this may be an isosceles triangle or the like. It is sufficient if sufficient ECG information is obtained to detect the systole.
  • various sensors such as a pressure sensor and a temperature sensor can be used as the sensors that come into contact with the body, as long as it can detect contact with the body. Can do.
  • the LED lamp shown in the first embodiment is turned on, the electrical signal shown in the second embodiment is received, a method of notifying by sound such as a buzzer, and text data are monitored.
  • Various methods can be employed as long as the person who is touching the chestpiece can confirm the contact and can be recognized from a remote location, such as a method of displaying on the screen.
  • Stethoscope 10 Stethoscope parts 20a, 20b, 20c, 20d, 20e, 20f, 20g, 20h Sensor 30 Electric cable 40 Notification part 41 LED lamp

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Acoustics & Sound (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

Le problème décrit par la présente invention est de fournir un stéthoscope doté d'une structure permettant même aux médecins travaillant à distance de reconnaître si la partie thoracique du stéthoscope touche la surface du corps de manière appropriée. La solution de l'invention porte sur un stéthoscope comprenant : une partie stéthoscope (10) comprenant une partie thoracique et un microphone disposé à l'intérieur de la partie thoracique ou dans un tube creux relié à la partie thoracique ; et des capteurs (20a–20c) destinés à détecter un contact avec un corps humain, les capteurs détectant un contact en venant en butée contre le corps, et étant fixés à la partie thoracique de sorte que, lorsqu'ils sont dans un état de détection de contact, les extrémités butée des capteurs soient situées dans la même position que la surface de contact de la partie thoracique contre le corps ou dans une position qui est légèrement plus éloignée du corps que la surface de contact.
PCT/JP2017/010506 2016-03-18 2017-03-15 Stéthoscope WO2017159752A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/086,008 US11116473B2 (en) 2016-03-18 2017-03-15 Stethoscope

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2016055893 2016-03-18
JP2016-055893 2016-03-18
JP2016242407A JP6363158B2 (ja) 2016-03-18 2016-12-14 聴診器
JP2016-242407 2016-12-14

Publications (1)

Publication Number Publication Date
WO2017159752A1 true WO2017159752A1 (fr) 2017-09-21

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Application Number Title Priority Date Filing Date
PCT/JP2017/010506 WO2017159752A1 (fr) 2016-03-18 2017-03-15 Stéthoscope

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WO (1) WO2017159752A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220409130A1 (en) * 2021-06-23 2022-12-29 Decentralized Biotechnology Intelligence Co., Ltd. Wearable stethoscope and its related monitoring system
TWI824584B (zh) * 2021-07-14 2023-12-01 美律實業股份有限公司 收音裝置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015020030A (ja) * 2013-07-23 2015-02-02 シャープ株式会社 生体音収集装置
WO2015170772A2 (fr) * 2014-05-08 2015-11-12 株式会社Ａｉｎｙ Dispositif de mesure de fonction respiratoire circulaire
WO2016143116A1 (fr) * 2015-03-12 2016-09-15 パイオニア株式会社 Stéthoscope

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015020030A (ja) * 2013-07-23 2015-02-02 シャープ株式会社 生体音収集装置
WO2015170772A2 (fr) * 2014-05-08 2015-11-12 株式会社Ａｉｎｙ Dispositif de mesure de fonction respiratoire circulaire
WO2016143116A1 (fr) * 2015-03-12 2016-09-15 パイオニア株式会社 Stéthoscope

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220409130A1 (en) * 2021-06-23 2022-12-29 Decentralized Biotechnology Intelligence Co., Ltd. Wearable stethoscope and its related monitoring system
TWI824584B (zh) * 2021-07-14 2023-12-01 美律實業股份有限公司 收音裝置

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