WO2010123029A1 - 生体情報検出装置 - Google Patents
生体情報検出装置 Download PDFInfo
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- WO2010123029A1 WO2010123029A1 PCT/JP2010/057062 JP2010057062W WO2010123029A1 WO 2010123029 A1 WO2010123029 A1 WO 2010123029A1 JP 2010057062 W JP2010057062 W JP 2010057062W WO 2010123029 A1 WO2010123029 A1 WO 2010123029A1
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- pressure
- clamping force
- sensitive plate
- detection
- force fluctuation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Measuring devices for evaluating the respiratory organs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/024—Measuring pulse rate or heart rate
- A61B5/0245—Measuring pulse rate or heart rate by using sensing means generating electric signals, i.e. ECG signals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Measuring devices for evaluating the respiratory organs
- A61B5/0816—Measuring devices for examining respiratory frequency
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
- A61B5/1102—Ballistocardiography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
- A61B5/113—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb occurring during breathing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
- A61B5/6892—Mats
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0247—Pressure sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/024—Measuring pulse rate or heart rate
Definitions
- the present invention relates to a biological information detection apparatus that detects biological information such as heartbeat, body movement, and body position.
- a biological information detection apparatus that detects biological information such as respiration and body movement of a living body based on vibration due to respiration and body movement of the living body has been proposed in Japanese Patent Application Laid-Open No. 2007-54606. Yes.
- a living body holding unit, a flexible pressure transmitting unit, and a sensor unit for detecting a pressure change are provided on a base, and the living body holding unit or the pressure transmitting unit and the base are provided.
- a gap is provided between the table and the table.
- Patent Document 2 WO2007 / 029326
- a vibration transmission plate having high flexibility is provided on the base, and a piezoelectric transducer or the like capable of detecting acceleration or the like is attached to the vibration transmission plate to thereby generate vibration. It directly detects the vibration of the transmission plate.
- it is necessary to increase the sensitivity by thinning the vibration transmission plate.
- a highly elastic spacer is placed in the center of the vibration transmission plate.
- Patent Document 1 detects a change in pressure due to respiration of a living body by bending of a flexible pressure transmitting unit, a living body holding unit or a pressure transmitting unit and a base on which the living body is disposed There is a problem in that a gap must be provided between the two, and there is a limit to thinning the apparatus, which places a heavy burden on the measurement subject.
- Patent Document 2 discloses a technique for directly detecting vibration of a vibration transmission plate by a sensor, but as described above, in order to increase sensitivity, the vibration transmission plate is thinned. Must be easy to vibrate. Therefore, it is necessary to increase the load resistance by using a weight-shaped spacer as an elastic member, and there is a problem that it cannot be applied to a relatively heavy living body such as a human being, a dog, or a cat.
- the present invention intends to provide a biological information detection apparatus that can reduce the measurement burden on the measurement subject.
- the present invention that achieves the above object provides a pressure sensing surface that senses the vibration in a biological information detection device that detects biological information such as a respiratory state, heartbeat, and body motion of the living body based on vibrations caused by respiratory movement of the living body.
- a pressure-sensitive plate, a substrate disposed opposite to the pressure-sensitive plate, and disposed between the pressure-sensitive plate and the substrate, and between the pressure-sensitive plate and the substrate based on the vibration acting on the pressure-sensitive surface.
- a clamping force fluctuation detecting mechanism for detecting a clamping force fluctuation to be applied; and a signal synthesizer for synthesizing a plurality of detection signals output from the clamping force fluctuation detecting mechanism.
- a first piezoelectric element that is disposed on the pressure plate on the opposite side of the pressure sensitive surface and that converts the clamping force fluctuation acting on the pressure plate into a first detection signal; and is disposed on the opposite side of the pressure sensitive plate in the first piezoelectric element, The holding force change And a second piezoelectric element that is disposed between the transmission member and the substrate and that converts the clamping force variation acting on itself into a second detection signal, and acts on the pressure-sensitive surface.
- the clamping force fluctuation based on the vibration is transmitted to both the first piezoelectric element and the second piezoelectric element by the transmission member and converted into the first and second detection signals, and the signal synthesis device
- a biological information detection apparatus that detects the biological information by combining first and second detection signals.
- the present invention that achieves the above object is the biological information detecting apparatus, wherein the distance between the pressure sensitive plate and the substrate is maintained constant between the pressure sensitive plate and the substrate around the clamping force fluctuation detecting mechanism. Is arranged.
- the present invention that achieves the above object is characterized in that, in the biological information detecting device, the pressure-sensitive plate maintained by the support member as compared with the distance in the clamping force fluctuation direction of the clamping force fluctuation detection mechanism in an unloaded state. By setting the distance of the substrate to be small, a preload is applied to the clamping force fluctuation detecting mechanism in a steady state.
- the biological information detecting apparatus further comprises a signal extracting device that extracts a heartbeat component by filtering an output signal from the signal synthesizing device.
- the present invention that achieves the above object is characterized in that, in the biological information detecting device, the support member is disposed at least at four corners of the pressure sensitive plate, and the clamping force variation detecting mechanism is located at a substantially central position of the pressure sensitive plate. It is arranged.
- the present invention preferably further includes an analysis device for analyzing the output signal from the signal synthesis device and the output signal from the signal extraction device.
- the analysis device preferably detects at least the respiratory state of the human body, heartbeat, and body motion simultaneously or separately, and further detects the signal smoothing or the peak value of each waveform.
- This analyzer also makes it possible to determine the orientation of the human body, including turning over while sleeping. It is also preferable that the analyzer includes a frequency separation unit, and the biological information is detected by separating the fluctuation of the detection voltage by the frequency separation unit.
- the transmission surface of the transmission member of the present invention be smaller than the area of the pressure receiving surface of the first piezoelectric element and the second piezoelectric element.
- the present invention there are a plurality of detection modules having a pressure sensitive plate, a substrate, a clamping force variation detection mechanism, etc. It is also preferable to detect body movement.
- the plurality of measurement sites of the living body include at least the head and the abdomen, and further include the legs.
- FIG. 1 It is a figure which shows the whole structure of the biological information detection apparatus which concerns on embodiment of this invention.
- A is a top view of the detection module of the same biological information detection apparatus
- (b) is a front view of the detection module.
- It is a block diagram which shows the circuit structure in the biometric information detection apparatus.
- It is a graph which shows the waveform of the Example (A) at the time of detecting a respiratory component from the signal under a head with the biometric information detection apparatus, and a comparative example (B).
- FIG. 1 shows the overall configuration of a biological information detection apparatus 2 according to an embodiment of the present invention.
- the biological information detection device 2 includes a detection module 100, a signal synthesis device 200, a signal extraction device 300, and a signal analysis device 400.
- the detection module 100 detects biological information such as the respiratory state, heartbeat, and body motion of the living body based on vibration due to the respiratory motion of the living body 1.
- the signal synthesis device 200 synthesizes a plurality of detection signals output from the detection module 100.
- the signal extraction device 300 filters the output signal from the signal synthesis device 200 to extract a heartbeat component.
- the signal analyzer 400 uses both the signal of the signal synthesizer 200 and the signal of the signal extractor 300 to remove noise from the output signal, and from the result, respiration, heartbeat, body motion, Analyze posture status.
- the detection module 100 When the living body 1 lies on the bed 500, the detection module 100 is disposed under the abdomen and the head of the living body 1, respectively.
- the detection module 100 is disposed under the pillow (for example, when measuring the head) or under the mattress (for example, when measuring the abdomen and feet) in order to reduce the measurement burden on the living body 1. It is preferable to do.
- the detection module 100 is provided with an output cable 24 for taking out a detection signal.
- the pressure-sensitive plate 10 is a flexible resin or metal thin plate (plate-shaped) member, and includes a pressure-sensitive surface 12 for sensing vibration from a living body.
- the material of the pressure sensitive plate 10 is not limited to resin or metal.
- a material having such a high rigidity as to cause no delay in signal transmission such as ceramics.
- the rectangular plate (plate shape) member is used for the pressure sensitive board 10 in this embodiment, the shape of this pressure sensitive board 10 is not limited to this, It is preferable also as thin plate members, such as a square or a circle (after-mentioned). The same applies to the substrate 30).
- the substrate 30 is disposed opposite to the pressure-sensitive plate 10 and is made of a highly rigid resin or metal plate (plate) member.
- the material of the substrate 30 is not limited to resin or metal.
- substrate 30 uses the rectangular plate-shaped member in this embodiment, the shape of this board
- substrate 30 is arrange
- the support members 40 are highly rigid metal columnar members, and a total of four support members 40 are disposed at four corner positions between the pressure-sensitive plate 10 and the substrate 30.
- the upper and lower surfaces of the support member 40 are fixed to the pressure-sensitive plate 10 and the substrate 30, and the distance between the pressure-sensitive plate 10 and the substrate 30 is kept constant by the support member 40.
- the distance between the pressure sensitive plate 10 and the substrate 30 (the length of the support member 40) is set to 5 mm.
- the material of the support member 40 is not limited to a highly rigid metal.
- the support member 40 is not limited to a cylindrical shape, and is preferably a quadrangular prism or a triangular prism.
- the clamping force fluctuation detection mechanism 50 is disposed between the pressure-sensitive plate 10 and the substrate 30 and detects a clamping force fluctuation to be applied between the pressure-sensitive plate 10 and the substrate 30 based on vibrations acting on the pressure-sensitive surface 12.
- a first piezoelectric element 60, a transmission member 70, and a second piezoelectric element 80 are provided in this order from the pressure-sensitive plate 10 side toward the substrate 30 side.
- the support member 40 is fixed at both ends to both the pressure-sensitive plate 10 and the substrate 30 around the clamping force fluctuation detecting mechanism 50 so as to maintain a constant distance between the pressure-sensitive plate 10 and the substrate 30 as described above. It has become.
- the first piezoelectric element 60 is disposed on the opposite side of the pressure-sensitive surface 12 of the pressure-sensitive plate 10, and converts the clamping force fluctuation acting on the first piezoelectric element 60 into a first detection signal.
- the first piezoelectric element 60 has a disk shape and generates a voltage (one negative voltage at one end and a positive voltage at the other end) corresponding to the pressure from both ends when receiving a change in clamping force.
- the shape of this piezoelectric element is not limited to a disk shape, For example, a rectangular or square shape is also preferable.
- the first piezoelectric element 60 is fixed to the pressure sensitive plate 10 with an adhesive made of silicon resin. This silicone resin adhesive is excellent in electrical insulation, water resistance and heat resistance.
- the transmission member 70 is a highly rigid metal cylindrical member, and is disposed on the opposite side of the pressure-sensitive plate 10 in the first piezoelectric element 60 to transmit the clamping force fluctuation.
- the first piezoelectric element 60 and the transmission member 70 are fixed by an epoxy resin elastic adhesive.
- the material of the transmission member 70 is not limited to a highly rigid metal. For example, any other material having high rigidity that does not cause a delay in signal transmission, such as high-rigidity resin or ceramics, is preferable.
- the second piezoelectric element 80 has the same structure as the first piezoelectric element 60, and is disposed on the opposite side of the transmission member 70 to the first piezoelectric element 60, that is, between the transmission member 70 and the substrate 30, and has a clamping force acting on itself. The fluctuation is converted into a second detection signal.
- the second piezoelectric element 80 and the transmission member 70 are fixed (fixed) with an epoxy resin elastic adhesive, and the second piezoelectric element 80 and the substrate 30 are fixed (fixed) with an adhesive made of silicon resin. Yes. That is, the second piezoelectric element 80 is integrally formed between the transmission member 70 and the substrate 30 (between the second piezoelectric element 80 and the transmission member 70 and between the second piezoelectric element 80 and the substrate 30 with almost no gap).
- the pressure (clamping force fluctuation) received from the transmission member 70 can be converted into a voltage (second detection signal) without waste.
- the first and second piezoelectric elements 60 and 80 generate a voltage corresponding to the applied pressure (clamping force) when pressure (clamping force) is applied in the thickness direction due to the piezoelectric effect (piezoelectric phenomenon). It is an element, also called a piezo element. That is, the first and second piezoelectric elements 60 and 80 of the present embodiment function only after being sandwiched from both sides, and do not detect acceleration or the like by themselves. For example, when a piezoelectric transducer or the like vibrates itself, an electric signal can be output due to a change in acceleration or the like, so it is convenient. However, its detection sensitivity depends on the performance of the piezoelectric transducer, so there is a limit. End up.
- the thicknesses of the first and second piezoelectric elements 60 and 80 of this embodiment are about 0.6 mm, respectively, and the length (thickness) of the transmission member 70 is 5 mm, which is the same as that of the support member 40. . Therefore, the clamping force fluctuation detection mechanism 50 has a structure that is 1.2 mm longer than the support member 40.
- a preload clamping force
- the clamping force fluctuation acting on the clamping force fluctuation detection mechanism 50 can be detected by the first and second piezoelectric elements 60 and 80 with a similar and in-phase waveform with high sensitivity. Is possible.
- the output power of the first and second piezoelectric elements 60 and 80 is 0 V in a state where there is no fluctuation in clamping force. Therefore, the detection module 100 of the present embodiment is not affected by the difference in body weight of the living body to be measured.
- the clamping force variation detection mechanism 50 accurately detects this variation.
- the clamping force fluctuation detection mechanism 50 detects the same clamping force fluctuation simultaneously in both the first piezoelectric element 60 and the second piezoelectric element 80 via the transmission member 70, the first detection signal and the second detection signal are detected.
- the signals are almost similar and have waveforms in phase.
- the first and second detection signals are voltage waveforms output with respect to the strain pressure applied to the first and second piezoelectric elements 60 and 80 due to the piezoelectric characteristics. That is, the clamping force fluctuation based on the vibration acting on the pressure-sensitive surface 12 is simultaneously transmitted to both the first piezoelectric element 60 and the second piezoelectric element 80 by the transmission member 70, and the waveforms are almost similar and in phase. Are converted into first and second detection signals. Then, a signal synthesizer 200 described later synthesizes the first and second detection signals.
- the clamping force fluctuation detection mechanism 50 since the clamping force fluctuation detection mechanism 50 is disposed at the center of the pressure sensitive plate 10, the first and second piezoelectric elements 60 and 80 can simultaneously apply pressure to any position of the pressure sensitive plate 10. The fluctuation can be detected.
- the clamping force fluctuation detecting mechanism 50 since the clamping force fluctuation detecting mechanism 50 is configured to detect the clamping force fluctuation acting between the pressure-sensitive plate 10 and the substrate 30, the acceleration is slowly increased so that the acceleration is almost zero, such as body movement and breathing. Even when the holding force fluctuation occurs, it can be reliably detected. In the conventional structure that directly detects the vibration of the pressure-sensitive plate 10, these fluctuations cannot be detected unless the pressure-sensitive plate 10 itself sufficiently vibrates or bends greatly.
- FIG. 3 shows circuit configurations of the signal synthesis device 200 and the signal extraction device 300.
- the signal synthesizer 200 includes a buffer amplifier 210 disposed in each of the output cables of the first piezoelectric element 60 and the second piezoelectric element 80, and a first detection signal and a second detection signal transmitted via the buffer amplifier 210.
- An adder circuit (adder amplifier) 220 for synthesis is provided.
- the output signal from the signal synthesizer 200 includes information related to both respiration and heartbeat. In general, the breathing frequency is low and the heartbeat frequency is high. Therefore, the signal extraction device 300 uses the output signal of the signal synthesis device 200 to extract the high frequency component from which the respiration frequency is removed by the high pass filter and the low pass filter -310.
- the first-order differential waveform processing is performed on the output signal from the signal extraction device 300 and its negative peak is detected, but it is detected by a single piezoelectric element.
- the level of the negative peak is homogenized and the difference in peak value from other noise components is increased, so that correct / incorrect determination can be facilitated and detection accuracy can be increased.
- the substrate 30, the pressure sensitive plate 10 and the support member 40 apply a preload (clamping force) to the clamping force fluctuation detection mechanism 50 even when there is no load. Since the detection sensitivity is always kept good, the phases of the detection signals of the first and second piezoelectric elements 60 and 80 can be matched. As a result, as already described, by synthesizing both detection signals, it becomes easy to emphasize and output necessary information. In addition, since noise components due to individual circumstances of the first and second piezoelectric elements 60 and 80 rarely appear at the same time and in the same phase, even if the first and second detection signals are added, the noise components Is suppressed, and the S / N ratio can be improved.
- the waveform characteristics actually detected by the biological information detection apparatus 2 will be described.
- a waveform characteristic using a biological information detection apparatus that is not known but has almost the same structure and includes one piezoelectric element in the clamping force fluctuation detection mechanism will be described.
- a commercially available bed pad (thickness 19 cm) was used as a bed, and the same person was laid on the bed in the example and the comparative example, and biological information was recorded under the head and abdomen of the bed pad. It was made to detect.
- the vertical axis represents voltage and the horizontal axis represents time.
- FIG. 4A when the biological information detection device 2 of the embodiment is placed under the head, the waveform (respiratory and heartbeat synthesized waveform) obtained from the output of the signal synthesis device 200 is smoothed and reduced. The result of having determined the peak value after making the frequency component appear is shown.
- FIG. 4B shows the result of a comparative example under the same conditions. This peak value means the timing of breathing.
- the difference between the maximum value and the minimum value among the peak values is within about one-half.
- the difference between the maximum value and the minimum value among the peak values is large. Therefore, it may be difficult to determine the respiratory component and the noise component.
- the amplitude fluctuation is large, but in the example, it can be seen that the change in the amplitude itself is relatively small.
- FIG. 5A when the biological information detecting device 2 of the embodiment is placed under the abdomen, a waveform (respiratory and heartbeat synthesized waveform) obtained from the output of the signal synthesizer 200 is smoothed to a low frequency. The result of determining the peak value after revealing the component is shown.
- FIG. 5B shows the result of a comparative example under the same conditions.
- the waveform (A) of the example it can be seen that the difference between the maximum value and the minimum value among the peak values is within an extremely small range.
- the waveform (B) of the comparative example the difference between the maximum value and the minimum value among the peak values is large. Therefore, it may be difficult to determine the respiratory component and the noise component.
- the amplitude variation is large in the comparative example, it can be seen that in the example, the change in the amplitude itself is relatively small.
- FIG. 6A shows the peak value using the waveform (heartbeat waveform) obtained from the output of the signal extraction device 300 when the biological information detection device 2 of the embodiment is placed under the head. The result of the determination is shown.
- FIG. 6B shows the results of the comparative example under the same conditions.
- This peak value means the timing of heartbeat.
- the difference between the maximum value and the minimum value in the peak value is within about one half, and the noise is further reduced. I understand that.
- the waveform (B) of the comparative example it can be seen that the difference between the maximum value and the minimum value in the peak value is large, and the noise component is relatively large. Therefore, it may be difficult to determine the heartbeat component and the noise component.
- the peak value is determined using the waveform (heartbeat waveform) obtained from the output of the signal extraction device 300 when the biological information detection device 2 of the embodiment is placed under the abdomen.
- the results are shown.
- FIG. 6B shows the results of the comparative example under the same conditions. Also in FIG. 7, as in FIG. 6, in the waveform (A) of the example, it can be seen that the difference between the maximum value and the minimum value among the peak values is within about one-half. On the other hand, in the waveform (B) of the comparative example, it can be seen that the difference between the maximum value and the minimum value in the peak value is large, and the noise component is relatively large. Therefore, it may be difficult to determine the heartbeat component and the noise component.
- the biological information detection device 2 including the sandwiching force fluctuation detection mechanism having two piezoelectric elements, not only an amplification effect but also stabilization of the peak value and noise It can be understood that the S / N ratio can be improved by the reduction, and the detection accuracy can be increased.
- the biological information detecting apparatus 1 of the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention.
- the biological information detection apparatus using the piezoelectric element of the present invention can be widely used in the field of detection and analysis of biological information such as respiration, the field of health diagnosis and preventive medicine, and the like.
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Abstract
Description
Claims (5)
- 生体の呼吸運動による振動に基づいて、前記生体の呼吸状態、心拍動、体動等の生体情報を検出する生体情報検出装置において、
前記振動を感知する感圧面を有する感圧板と、
前記感圧板と対向配置される基板と、
前記感圧板と前記基板の間に配置されて、前記感圧面に作用する前記振動に基づいて前記感圧板と前記基板の間に印加させる挟持力変動を検出する挟持力変動検出機構と、
前記挟持力変動検出機構から出力される複数の検出信号を合成する信号合成装置と、
を備え、
前記挟持力変動検出機構は、
前記感圧板における感圧面の反対側に配置され、自身に作用する前記挟持力変動を第1検出信号に変換する第1圧電素子と、
前記第1圧電素子における前記感圧板の反対側に配置されて、前記挟持力変動を伝達する伝達部材と、
前記伝達部材と前記基板の間に配置され、自身に作用する前記挟持力変動を第2検出信号に変換する第2圧電素子と、
を備え、
前記感圧面に作用する前記振動に基づいた前記挟持力変動が、前記伝達部材によって前記第1圧電素子と前記第2圧電素子の双方に伝達されて前記第1及び第2検出信号に変換され、前記信号合成装置が該第1及び第2検出信号を合成することで、前記生体情報を検出することを特徴とする生体情報検出装置。 - 前記挟持力変動検出機構の周囲における前記感圧板と前記基板の間に、前記感圧板と前記基板の距離を一定に維持する支持部材が配置されることを特徴とする請求の範囲1に記載の生体情報検出装置。
- 無負荷状態における前記挟持力変動検出機構の前記挟持力変動方向の距離と比較して、前記支持部材によって維持される前記感圧板と前記基板の距離が小さく設定されることで、定常時に前記挟持力変動検出機構に予圧が印加されることを特徴とする請求の範囲2に記載の生体情報検出装置。
- 前記信号合成装置からの出力信号をフィルタリングして、心拍動成分を抽出する信号抽出装置を更に備えることを特徴とする請求の範囲1、2又は3に記載の生体情報検出装置。
- [規則91に基づく訂正 14.06.2010]
前記支持部材は、少なくとも前記感圧板の四隅に配設されると共に、
前記挟持力変動検出機構は、前記感圧板の略中心位置に配置されていることを特徴とする請求の範囲2に記載の生体情報検出装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1119947.8A GB2482815A (en) | 2009-04-23 | 2010-04-21 | Bioinformation detecting device |
| US13/265,675 US20120089033A1 (en) | 2009-04-23 | 2010-04-21 | Bioinformation detecting device |
| CN2010800264207A CN102458247A (zh) | 2009-04-23 | 2010-04-21 | 生物体信息检测装置 |
| DE112010001899T DE112010001899T5 (de) | 2009-04-23 | 2010-04-21 | Bioinformationserfassungsvorrichtung |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-104599 | 2009-04-23 | ||
| JP2009104599A JP4480785B1 (ja) | 2009-04-23 | 2009-04-23 | 生体情報検出装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010123029A1 true WO2010123029A1 (ja) | 2010-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2010/057062 Ceased WO2010123029A1 (ja) | 2009-04-23 | 2010-04-21 | 生体情報検出装置 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20120089033A1 (ja) |
| JP (1) | JP4480785B1 (ja) |
| KR (1) | KR20120023008A (ja) |
| CN (1) | CN102458247A (ja) |
| DE (1) | DE112010001899T5 (ja) |
| GB (1) | GB2482815A (ja) |
| WO (1) | WO2010123029A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105726037A (zh) * | 2016-03-31 | 2016-07-06 | 德清县德意电脑有限公司 | 一种改进结构的心冲击图信号采集系统 |
| CN105726036A (zh) * | 2016-03-31 | 2016-07-06 | 德清县德意电脑有限公司 | 一种心冲击图信号采集系统 |
| WO2018180398A1 (ja) * | 2017-03-29 | 2018-10-04 | 太陽誘電株式会社 | 着座センサ,座席,及び波形解析装置 |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2008139583A1 (ja) * | 2007-05-10 | 2010-07-29 | アドバンスドメディカル株式会社 | 生体振動検出装置及びこれを用いた生体生理検出装置 |
| EP3223683B1 (en) * | 2014-11-27 | 2019-08-14 | Koninklijke Philips N.V. | A wearable pain monitor using accelerometry |
| JP6457319B2 (ja) * | 2015-04-10 | 2019-01-23 | 国立大学法人山口大学 | 生体信号検知装置 |
| CN105832316B (zh) * | 2016-03-15 | 2019-03-15 | 合肥工业大学 | 枕式睡眠生理参数监测装置 |
| CN105662424A (zh) * | 2016-03-31 | 2016-06-15 | 德清县德意电脑有限公司 | 一种改进结构的心冲击图信号记录仪 |
| CN105769208A (zh) * | 2016-03-31 | 2016-07-20 | 德清县德意电脑有限公司 | 一种改进结构的心冲击图信号收集传导装置 |
| CN105726038A (zh) * | 2016-03-31 | 2016-07-06 | 德清县德意电脑有限公司 | 一种心冲击图信号收集传导装置 |
| US20200359929A1 (en) * | 2018-01-31 | 2020-11-19 | Taiyo Yuden Co., Ltd. | Pulse wave propagation velocity measurement device and method for same |
| US12089956B2 (en) * | 2019-03-11 | 2024-09-17 | Beijing Microvibration Datanet Technology Co., Ltd. | Signal acquisition sensor array, electronic device, and mattress |
| CN110448282B (zh) * | 2019-08-21 | 2021-11-09 | 武汉理工大学 | 一种光纤感应组件及生命体征监测装置 |
| CN114269238A (zh) * | 2019-09-18 | 2022-04-01 | 深圳迈瑞生物医疗电子股份有限公司 | 一种呼吸识别方法及装置、通气设备、存储介质 |
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| JPH05142029A (ja) * | 1991-09-24 | 1993-06-08 | Idec Izumi Corp | 感震装置 |
| WO2006048960A1 (ja) * | 2004-11-02 | 2006-05-11 | At. Labo. Co., Ltd. | 心拍・呼吸センサおよびそれを用いた生体監視装置 |
| WO2007029326A1 (ja) * | 2005-09-08 | 2007-03-15 | At. Labo. Co., Ltd. | 小動物用の心拍・呼吸・行動量検出装置 |
| JP2007139566A (ja) * | 2005-11-17 | 2007-06-07 | Aisin Seiki Co Ltd | 生体情報用圧力センサ及び生体情報用圧力検出装置 |
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| US7396331B2 (en) * | 2003-10-27 | 2008-07-08 | Home Guardian, Llc | System and process for non-invasive collection and analysis of physiological signals |
| JP4460414B2 (ja) * | 2004-10-06 | 2010-05-12 | 日本電信電話株式会社 | 血圧計 |
| JP2007054606A (ja) | 2005-07-26 | 2007-03-08 | Matsushita Electric Works Ltd | 生体信号検出装置 |
| JP4905043B2 (ja) * | 2006-10-12 | 2012-03-28 | アイシン精機株式会社 | ベッド装置 |
| JP2008253570A (ja) * | 2007-04-05 | 2008-10-23 | Aisin Seiki Co Ltd | 生体情報検出体、ベッド装置、着座装置 |
| JP2009022567A (ja) * | 2007-07-20 | 2009-02-05 | Aisin Seiki Co Ltd | 生体情報検出装置、ベッド装置および生体情報検出方法 |
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- 2009-04-23 JP JP2009104599A patent/JP4480785B1/ja not_active Expired - Fee Related
-
2010
- 2010-04-21 CN CN2010800264207A patent/CN102458247A/zh active Pending
- 2010-04-21 KR KR1020117027868A patent/KR20120023008A/ko not_active Withdrawn
- 2010-04-21 DE DE112010001899T patent/DE112010001899T5/de not_active Withdrawn
- 2010-04-21 WO PCT/JP2010/057062 patent/WO2010123029A1/ja not_active Ceased
- 2010-04-21 US US13/265,675 patent/US20120089033A1/en not_active Abandoned
- 2010-04-21 GB GB1119947.8A patent/GB2482815A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH05142029A (ja) * | 1991-09-24 | 1993-06-08 | Idec Izumi Corp | 感震装置 |
| WO2006048960A1 (ja) * | 2004-11-02 | 2006-05-11 | At. Labo. Co., Ltd. | 心拍・呼吸センサおよびそれを用いた生体監視装置 |
| WO2007029326A1 (ja) * | 2005-09-08 | 2007-03-15 | At. Labo. Co., Ltd. | 小動物用の心拍・呼吸・行動量検出装置 |
| JP2007139566A (ja) * | 2005-11-17 | 2007-06-07 | Aisin Seiki Co Ltd | 生体情報用圧力センサ及び生体情報用圧力検出装置 |
| JP2009226192A (ja) * | 2008-10-16 | 2009-10-08 | Medical Trust Co Ltd | 圧電素子を用いた生体情報検出装置 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105726037A (zh) * | 2016-03-31 | 2016-07-06 | 德清县德意电脑有限公司 | 一种改进结构的心冲击图信号采集系统 |
| CN105726036A (zh) * | 2016-03-31 | 2016-07-06 | 德清县德意电脑有限公司 | 一种心冲击图信号采集系统 |
| WO2018180398A1 (ja) * | 2017-03-29 | 2018-10-04 | 太陽誘電株式会社 | 着座センサ,座席,及び波形解析装置 |
| JPWO2018180398A1 (ja) * | 2017-03-29 | 2020-02-13 | 太陽誘電株式会社 | 振動センサ,着座センサ,対象物,及び波形解析装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112010001899T5 (de) | 2012-06-14 |
| JP2010252934A (ja) | 2010-11-11 |
| KR20120023008A (ko) | 2012-03-12 |
| GB2482815A (en) | 2012-02-15 |
| JP4480785B1 (ja) | 2010-06-16 |
| GB201119947D0 (en) | 2012-01-04 |
| US20120089033A1 (en) | 2012-04-12 |
| CN102458247A (zh) | 2012-05-16 |
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