WO2017043260A1 - 脈波検出装置 - Google Patents

脈波検出装置 Download PDF

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Publication number
WO2017043260A1
WO2017043260A1 PCT/JP2016/073851 JP2016073851W WO2017043260A1 WO 2017043260 A1 WO2017043260 A1 WO 2017043260A1 JP 2016073851 W JP2016073851 W JP 2016073851W WO 2017043260 A1 WO2017043260 A1 WO 2017043260A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulse wave
housing
wave detection
wrist
casing
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2016/073851
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
ブライアン ブリガム
正幸 福塚
新吾 山下
北川　毅
小椋　敏彦
祐之 若宮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omron Healthcare Co Ltd
Original Assignee
Omron Healthcare Co Ltd
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
Application filed by Omron Healthcare Co Ltd filed Critical Omron Healthcare Co Ltd
Priority to EP16844123.6A priority Critical patent/EP3332700B1/en
Priority to CN201680051582.3A priority patent/CN108024734B/zh
Publication of WO2017043260A1 publication Critical patent/WO2017043260A1/ja
Priority to US15/914,790 priority patent/US20180192890A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
    • 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
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6824—Arm or wrist
    • 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
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6843—Monitoring or controlling sensor contact pressure

Definitions

  • the present invention relates to a pulse wave detection device.
  • a biological information measuring apparatus capable of measuring biological information such as pulse and blood pressure using information detected by a sensor while directly contacting a living body part through which an artery such as the radial artery of the wrist passes.
  • Known for example, see Patent Documents 1 to 3).
  • Patent Document 1 describes a biological information measurement device that improves the wearability of the device on the wrist by providing an opening for avoiding the ulna in a portion wound around the back of the hand while being worn on the wrist. ing.
  • Patent Document 2 includes a marking portion for indicating a band winding strength according to the degree of expansion and contraction of a band wound around a wrist and capable of expanding and contracting in the winding direction. Describes a biological information measuring device provided with a reference button serving as a reference for determining whether or not the degree of expansion and contraction corresponds to the optimum band winding strength.
  • the device by attaching the device using the marking unit and the reference button, the device can be attached with the optimum band winding strength regardless of the thickness of the wrist of the user. .
  • Patent Document 3 describes a biological information measuring device in which both end portions of a band portion wound around a wrist are divided into three portions, and one end and the other end of each divided band portion can be individually fixed. .
  • Japanese Laid-Open Patent Publication No. 2008-168054 Japanese Unexamined Patent Publication No. 05-329117 Japanese Laid-Open Patent Publication No. 51-041285
  • the biological information measuring devices described in Patent Documents 1 to 3 are attached to the wrist by turning the band to the back side of the hand and fixing it from the state where the pressure sensor portion is held in the vicinity of the radial artery. .
  • the radial styloid In the vicinity of the radial artery, the radial styloid is present, and in the state where the pressure sensor portion is held in the vicinity of the radial artery, the rigid portion of the radial styloid corresponds to the housing of the device.
  • the rigidity of the casing of the device is high, the casing is likely to be unstable. If the device is fixed to the wrist by wrapping a band or the like in this state, the pressure sensor portion may be fixed at a position shifted from a desired position. In addition, the band is wound in an unstable state, and it is not easy to mount the device.
  • Patent Document 1 describes an example in which a casing portion that is assumed to correspond to a stalk-like projection of a rib is made of a highly rigid material. It is easy to become a state. Patent Document 1 describes an example in which the entire casing is made of a material having low rigidity. According to this configuration, the casing is unlikely to be unstable due to the stalk-like projections of the ribs. . However, if the rigidity of the entire housing that houses the pressure sensor is low, the position of the pressure sensor is likely to be displaced due to an external impact or a user's movement after the device is mounted.
  • the biological information measuring devices described in Patent Documents 2 and 3 are those in which a pressure sensor is fixed to a band having low rigidity. Position is easy to shift.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a pulse wave detection device capable of improving the wearability while suppressing the displacement of the pulse wave detection sensor.
  • the pulse wave detection device of the present invention is a pulse wave detection device that is used by being worn on the wrist of a measurement subject, and includes a housing that houses a pulse wave detection sensor that detects a pulse wave from the radial artery,
  • the body includes a first housing part and a second housing part having a lower rigidity than the first housing part, and the pulse wave detection sensor is accommodated in the first housing part.
  • the area of the casing that comes into contact with the stem-like projections of the ribs of the wrist is configured by at least the second casing portion.
  • a pulse wave detection device capable of improving the wearability while suppressing the displacement of the pulse wave detection sensor.
  • FIG. 1 is a schematic view of the housing 20 of FIG. 1 viewed from the side in contact with the wrist.
  • FIG. 3 is a schematic sectional view taken along line AA in FIG. 2. It is a figure for demonstrating the mounting method to the wrist of a biological information measuring device.
  • 6 is a schematic cross-sectional view of a housing 20A that is a modification of the housing 20.
  • FIG. FIG. 6 is a schematic cross-sectional view of a housing 20B that is a modification of the housing 20.
  • FIG. 1 is a schematic diagram showing an external configuration of a casing 20 of a wrist-worn biological information measuring device for explaining an embodiment of the present invention.
  • FIG. 2 is a schematic view seen from the side in contact with the wrist of the housing 20 of FIG.
  • FIG. 1 shows the left wrist H of the person to be measured, and the front side in the figure is the direction in which the hand of the person to be measured exists. Further, the upper side in the figure is the direction in which the palm is facing.
  • a radius T, an ulna S, and a radial artery TD are illustrated.
  • the biological information measuring apparatus of this embodiment includes a pulse wave detection unit 10 that detects a pulse wave (pressure pulse wave or volume pulse wave) from the radial artery TD along the rib T of the wrist H of the measurement subject. Biological information such as a blood pressure value and a pulse rate is measured based on the pulse wave detected by the detection unit 10.
  • a pulse wave pressure pulse wave or volume pulse wave
  • the pulse wave detector 10 can adopt a known configuration.
  • the pulse wave detection unit 10 includes a pressure sensor as a pulse wave detection sensor and a mechanism that presses the pressure sensor against the skin, and detects the pressure pulse wave with the pressure sensor.
  • the pulse wave detection unit 10 includes a photoelectric sensor as a pulse wave detection sensor, and detects a volume pulse wave from a signal detected by the photoelectric sensor.
  • the biological information measuring device includes a pulse wave detection unit 10 and a biological information calculation unit (not shown) that calculates biological information such as a blood pressure value and a pulse rate based on the pulse wave detected by the pulse wave detection unit 10.
  • a biological information calculation unit (not shown) that calculates biological information such as a blood pressure value and a pulse rate based on the pulse wave detected by the pulse wave detection unit 10.
  • a body 20 and a band to be described later for fixing the housing 20 to the wrist are provided.
  • the biological information measuring device only needs to have at least the pulse wave detection unit 10 and functions as a pulse wave detection device.
  • the biological information calculation unit may be provided in a device different from the biological information measurement device.
  • the housing 20 is configured to be wound along the circumferential direction of the wrist H, and is attached to the wrist H so as to cover the stem-like protrusion Ta of the rib T.
  • the housing 20 has a substantially U shape in which the ulna S side of the wrist H is opened, and is configured so that the ulna S is not covered between both ends in the circumferential direction of the wrist H.
  • the housing 20 includes a rigid portion 1 (first housing portion) composed of a rigid portion 1 a (first sub-housing portion) and a rigid portion 1 b (second sub-housing portion), and the rigid portion 1. And a soft portion 2 (second housing portion) having low rigidity.
  • Each of the rigid portion 1a and the rigid portion 1b and the flexible portion 2 are connected by adhesion such as adhesion or welding, or are connected by a connection pin.
  • the rigid part 1a accommodates the pulse wave detection part 10.
  • the rigid portion 1a stabilizes the position of the pulse wave detection unit 10 with respect to the radial artery TD when the housing 20 is attached to the wrist H, and also protects the pulse wave detection unit 10 including a precision element. It is composed of a first material having high rigidity. As the first material, for example, resin or metal is used.
  • the soft part 2 is composed of a second material having lower rigidity than the first material.
  • a second material having lower rigidity than the first material.
  • an elastic member or a shape memory alloy is used as the second material.
  • an elastomer, rubber, or sponge is particularly preferably used.
  • the rigid portion 1b is made of the same first material as the rigid portion 1a, but may be made of a material different from the first material (however, a material having higher rigidity than the second material). .
  • FIG. 3 is a schematic sectional view taken along line AA in FIG. In FIG. 3, some components are not shown.
  • the rigid portion 1 a and the flexible portion 2 are connected side by side in the circumferential direction of the wrist H.
  • the soft part 2 has substantially the same thickness as the rigid part 1a in the range B in the vicinity of the connecting part with the rigid part 1a.
  • the soft part 2 is thinner than the range B on the tip side than the range B.
  • the portion where the thickness of the flexible portion 2 is thin constitutes the outer peripheral surface of the housing 20 (the opposite surface of the inner peripheral surface that contacts the wrist H).
  • the area on the wrist H side surface in the area B of the soft part 2 is the area where the stem protrusion Ta of the rib T of the person to be measured comes into contact when the casing 20 is wound around the wrist H by the method specified by the manufacturer. 2c exists. 1, 2, and 3, a recess 23 is formed on the surface on the wrist H side in the range B of the flexible portion 2, and the bottom surface of the recess 23 is the region 2 c as it is.
  • the range B may be a range including at least the region 2c in the circumferential direction of the wrist.
  • the region in which the stalk-like projection Ta contacts with the case 20 in a state where the case 20 is attached to the wrist varies depending on the shape of the wrist of the measurement subject. Therefore, for every possible wrist shape, by simulating the area where the stalk projection Ta contacts the housing 20, the area 2c where the stalk projection Ta of an unspecified number of subjects may contact Can be decided.
  • the housing 20 is designed so that at least the region 2c is composed of the flexible part 2.
  • the rigid portion 1 b overlaps with the portion excluding the range B in the flexible portion 2 in the thickness direction of the housing 20 and constitutes a part of the inner peripheral surface of the housing 20.
  • a band fastener 22 for fixing a band (not shown) for fixing the casing 20 to the wrist H is provided on the inner peripheral surface of the casing 20.
  • the band fastener 22 is configured by a cylindrical metal fitting. The base end of the band is fixed to the band fastener 22.
  • the biological information measuring device is configured by the housing 20 and the band in FIG. 1, the housing 20 itself constitutes the biological information measuring device if the housing 20 can be fixed to the wrist without using the band. .
  • Holes 11 and 12 for locking the tip of the band to the rigid portion 1a are arranged along the circumferential direction of the wrist H on the outer peripheral surface of the rigid portion 1a (the surface opposite to the surface facing the wrist H). Is provided.
  • the band is a band shape along the longitudinal direction of the casing 20 (synonymous with the circumferential direction of the wrist H), and is configured by a member having rigidity lower than that of the casing 20. For example, cloth or leather is used for this member.
  • the band is provided with a hook-and-loop fastener for attaching a part of the band and the other part.
  • the person to be measured turns the tip of the band fixed to the band fastener 22 to the palm side and inserts it into the hole 12. Pull out.
  • the measured person pulls the band taken out from the hole 11 toward the back side of the hand and adjusts the tightening condition, and then locks the bands to each other with a hook-and-loop fastener, thereby fixing the casing 20 to the wrist H by the band.
  • FIG. 4 is a diagram for explaining a method of mounting the housing 20 on the wrist.
  • illustration of components for fixing the casing 20 such as a band is omitted.
  • the measurement subject brings the detection surface of the pulse wave detection sensor of the pulse wave detection unit 10 into contact with a predetermined position of the wrist specified by the manufacturer. Through this operation, the stem-like protrusion Ta comes into contact with the bottom surface of the recess 23 of the housing 20.
  • the concave portion 23 is constituted by the soft portion 2, even when the stem-like projection Ta hits the bottom surface of the concave portion 23, the bottom surface is deformed according to the shape of the stem-like projection Ta, so that the housing 20 is against the wrist H. Can be prevented from floating.
  • the measurement subject since the bottom surface of the recess 23 is made of a soft material, the measurement subject does not feel uncomfortable and the wearing feeling does not deteriorate. From the state of FIG. 4, the person to be measured secures the casing 20 to the wrist with a band (not shown) and completes the wearing of the biological information measuring device.
  • the region 2c where the stem projection Ta contacts with the case 20 attached to the wrist is more rigid than the rigid portion 1a that houses the pulse wave detection unit 10. Is also composed of a soft portion 2 having low rigidity.
  • the housing 20 does not float from the wrist, the positional deviation of the pulse wave detector 10 after mounting can be suppressed, and the pressure pulse wave can be detected with high accuracy.
  • the pulse wave detection unit 10 is accommodated in the rigid portion 1a having high rigidity. For this reason, it is possible to prevent the position of the pulse wave detection unit 10 from being shifted due to an external impact, hand movement, or the like after the housing 20 is attached to the wrist.
  • the recessed part 23 is formed in the area
  • the recess 23 may be omitted. Even if the concave portion 23 is omitted, the region 2c that comes into contact with the stem-like protrusion Ta is constituted by the soft portion 2. For this reason, effects such as improvement in wearability and suppression of displacement of the pulse wave detection unit 10 can be obtained.
  • the position of the region 2c in contact with the stem-like protrusion Ta in the housing 20 is in the vicinity of the boundary where the palm 20 is wound around the wrist and is switched from the palm side to the back of the hand.
  • the portion including the region 2c is configured by the flexible portion 2, it is easy to bend the housing 20 from the palm side toward the back of the hand. Therefore, it is possible to easily attach the housing 20 to the wrist.
  • the degree of adhesion to the wrist can be easily adjusted by the flexibility of the soft part 2, and the wearability of the device can be improved regardless of the shape of the wrist.
  • the thickness of the flexible portion 2 on the distal end side is thin, and the rigid portion 1b is provided in this thinned portion.
  • FIG. 5 is a schematic cross-sectional view of a housing 20 ⁇ / b> A that is a modification of the housing 20.
  • FIG. 5 is a diagram corresponding to FIG.
  • the housing 20A has the same configuration as the housing 20 except that the rigid portion 1b is entirely changed to the soft portion 2.
  • the pulse wave detection unit 10 can be stably fixed to the wrist by the rigid portion 1a.
  • the soft portion 2 can avoid an unstable state when the wrist of the housing 20A is worn due to the stem-like protrusion Ta of the rib T.
  • the back side of the hand is entirely composed of the flexible portion 2, the degree of freedom of mounting the housing 20 on the wrist can be further increased.
  • FIG. 6 is a schematic cross-sectional view of a housing 20B, which is a modified example of the housing 20.
  • FIG. 6 is a diagram corresponding to FIG.
  • the housing 20B has the same configuration as the housing 20 except that the thin portion of the flexible portion 2 is changed to the rigid portion 1b.
  • the pulse wave detection unit 10 can be stably fixed to the wrist by the rigid portion 1a and the rigid portion 1b. Further, the soft portion 2 can avoid an unstable state when the wrist of the housing 20B is worn due to the stalk-like projection Ta of the rib T.
  • the flexible portion 2 can increase the degree of freedom of mounting the casing 20B on the wrist. Further, as compared with the housing 20A, the rigidity of the entire housing can be increased, and the durability of the apparatus can be increased.
  • FIG. 7 is a schematic cross-sectional view of a housing 20 ⁇ / b> C that is a modification of the housing 20.
  • FIG. 7 is a diagram corresponding to FIG.
  • the casing 20C is configured such that almost the entire casing 20 is configured by the rigid portion 1a, and only the portion including the region 2c in contact with the stalk-shaped projection Ta in the rigid portion 1a is the flexible portion 2.
  • the housing 20 ⁇ / b> C has a configuration in which the outer peripheral surface side of the flexible portion 2 is a rigid portion 1 a having higher rigidity than the flexible portion 2 in the housing 20 ⁇ / b> B.
  • the housing 20C the same effect as the housing 20B can be obtained. Further, the rigidity of the entire casing can be further increased, and the durability of the apparatus can be further improved.
  • the disclosed pulse wave detection device is a pulse wave detection device that is used by being worn on the wrist of a measurement subject, and includes a housing that houses a pulse wave detection sensor that detects a pulse wave from the radial artery,
  • the body includes a first housing part and a second housing part having a lower rigidity than the first housing part, and the pulse wave detection sensor is accommodated in the first housing part.
  • the area of the casing that comes into contact with the stem-like projections of the ribs of the wrist is configured by at least the second casing portion.
  • the first casing unit includes a first sub casing unit that houses the pulse wave detection sensor, and a second sub casing unit, and the casing Is configured to be wound along the circumferential direction of the wrist, and the first sub-housing unit, the second housing unit, and the second sub-housing unit are arranged in the circumferential direction. It is the structure connected side by side.
  • the casing is configured to be wound along a circumferential direction of a wrist, and the first casing section and the second casing that house the pulse wave detection sensor It is the structure where the part was connected along with the said circumferential direction.
  • the first casing portion includes a first sub casing portion that houses the pulse wave detection sensor, and a second sub casing portion,
  • the sub housing portion and the second housing portion are arranged side by side in the circumferential direction, and the second sub housing portion is connected to the second housing portion in the thickness direction of the housing. This overlaps with a part of the portion excluding the region.
  • the disclosed pulse wave detection device has a recess formed in the region of the housing.
  • the second casing is made of elastomer, rubber, or sponge.
  • a pulse wave detection device capable of improving the wearability while suppressing the displacement of the pulse wave detection sensor.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Cardiology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physiology (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
PCT/JP2016/073851 2015-09-07 2016-08-15 脈波検出装置 Ceased WO2017043260A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16844123.6A EP3332700B1 (en) 2015-09-07 2016-08-15 Pulse wave detector
CN201680051582.3A CN108024734B (zh) 2015-09-07 2016-08-15 脉搏波检测装置
US15/914,790 US20180192890A1 (en) 2015-09-07 2018-03-07 Pulse wave detecting device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015175966A JP2017051276A (ja) 2015-09-07 2015-09-07 脈波検出装置
JP2015-175966 2015-09-07

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/914,790 Continuation US20180192890A1 (en) 2015-09-07 2018-03-07 Pulse wave detecting device

Publications (1)

Publication Number Publication Date
WO2017043260A1 true WO2017043260A1 (ja) 2017-03-16

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PCT/JP2016/073851 Ceased WO2017043260A1 (ja) 2015-09-07 2016-08-15 脈波検出装置

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US (1) US20180192890A1 (enExample)
EP (1) EP3332700B1 (enExample)
JP (1) JP2017051276A (enExample)
CN (1) CN108024734B (enExample)
WO (1) WO2017043260A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019058320A (ja) * 2017-09-26 2019-04-18 ヤマハ株式会社 脈波検出装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI776523B (zh) * 2021-05-25 2022-09-01 友達光電股份有限公司 脈診裝置

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JP2004222931A (ja) * 2003-01-22 2004-08-12 Omron Healthcare Co Ltd 手首式血圧計用カフ
JP2005087483A (ja) * 2003-09-17 2005-04-07 Omron Healthcare Co Ltd 脈波測定装置用手首固定具および脈波測定装置
JP2008168054A (ja) * 2007-01-15 2008-07-24 Citizen Holdings Co Ltd 手首装着型の生体測定装置用のバンド

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CN103989463B (zh) * 2014-05-16 2015-09-30 东北大学 一种基于指端脉搏波的桡动脉脉搏波检测系统及方法

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JP2004222931A (ja) * 2003-01-22 2004-08-12 Omron Healthcare Co Ltd 手首式血圧計用カフ
JP2005087483A (ja) * 2003-09-17 2005-04-07 Omron Healthcare Co Ltd 脈波測定装置用手首固定具および脈波測定装置
JP2008168054A (ja) * 2007-01-15 2008-07-24 Citizen Holdings Co Ltd 手首装着型の生体測定装置用のバンド

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019058320A (ja) * 2017-09-26 2019-04-18 ヤマハ株式会社 脈波検出装置

Also Published As

Publication number Publication date
EP3332700A4 (en) 2019-03-27
EP3332700B1 (en) 2020-02-26
CN108024734B (zh) 2021-07-13
US20180192890A1 (en) 2018-07-12
JP2017051276A (ja) 2017-03-16
CN108024734A (zh) 2018-05-11
EP3332700A1 (en) 2018-06-13

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