WO2015068465A1 - 生体情報測定装置 - Google Patents
生体情報測定装置 Download PDFInfo
- Publication number
- WO2015068465A1 WO2015068465A1 PCT/JP2014/073974 JP2014073974W WO2015068465A1 WO 2015068465 A1 WO2015068465 A1 WO 2015068465A1 JP 2014073974 W JP2014073974 W JP 2014073974W WO 2015068465 A1 WO2015068465 A1 WO 2015068465A1
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- WIPO (PCT)
- Prior art keywords
- finger
- receiving surface
- biological information
- pair
- light
- 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.)
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Classifications
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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
- A61B5/68—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
- A61B5/6825—Hand
- A61B5/6826—Finger
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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
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
-
- 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
- A61B5/02416—Measuring pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
- A61B5/02427—Details of sensor
- A61B5/02433—Details of sensor for infrared radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
- A61B5/14552—Details of sensors specially adapted therefor
-
- 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
- A61B5/683—Means for maintaining contact with the body
- A61B5/6838—Clamps or clips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7271—Specific aspects of physiological measurement analysis
- A61B5/7282—Event detection, e.g. detecting unique waveforms indicative of a medical condition
Definitions
- the present invention relates to a biological information measuring apparatus that measures predetermined physiological information from a living body.
- a pulse wave meter measures a pulse wave of a living body
- a pulse oximeter measures a blood oxygen saturation level of the living body
- a blood glucose meter measures a blood glucose level of the living body, for example.
- One method for measuring biological information is a photoelectric method.
- a living body information measuring device using this photoelectric method measures predetermined living body information by projecting and receiving light on a finger of the living body, for example. For this reason, this photoelectric biometric information measuring device has a mounting portion for mounting the finger.
- the ring-shaped biological signal detection device disclosed in Patent Document 1 includes an annular mounting portion to be mounted on a finger, and a light emitting element and a light receiving element provided on the inner peripheral surface side of the mounting portion, A biological signal detection device that detects a biological signal by receiving light emitted from the light emitting element toward the finger with the light receiving element, and reduces the diameter of the inner peripheral surface of the mounting portion as a whole.
- An adjustment mechanism is provided. According to Patent Document 1, if the diameter of the inner peripheral surface of the mounting portion is reduced overall by the adjustment mechanism that reduces the diameter of the mounting portion as a whole, the finger is tightened on the entire inner peripheral surface of the mounting portion. Therefore, it is possible to prevent the ring from rotating or a gap between the detection element and the finger from being generated. Thereby, an accurate biological signal can be detected.
- the biological signal detection device disclosed in Patent Document 1 stabilizes the positional relationship between the position of the finger and each position of the light emitting element and the light receiving element by tightening the finger with the adjusting mechanism.
- the finger since the finger is tightened by the adjusting mechanism, the finger becomes congested, and the measurement subject may feel stress due to a feeling of pressure.
- the pulse wave, blood oxygen concentration, and the like are measured over a relatively long time in order to monitor (monitor and observe) the state of the subject. For this reason, the biological information measuring device is also worn on the subject for a relatively long time, and these points are serious.
- the tightening of the adjusting mechanism is loosened in order to avoid these points, the positional relationship between the finger position and each position of the light emitting element and the light receiving element may not be stable.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a biological information measuring device that can reduce the pressure applied to the finger and reduce the positional deviation of the finger with respect to the measurement position.
- the biological information measuring apparatus includes an insertion / extraction opening for inserting / removing a biological finger, an accommodation space for accommodating the biological finger inserted from the insertion / extraction opening, and facing the accommodation space, from the insertion / extraction opening And a mounting body part that forms an abdomen receiving surface for receiving a belly of the inserted biological finger, and the mounting body part extends along an insertion / extraction direction for inserting / removing the biological finger, and is received by the abdominal receiving surface.
- a pair of first finger misalignment inhibiting portions that inhibits the living body finger from being displaced in an orthogonal direction orthogonal to the insertion / extraction direction are provided on both sides of the belly support surface in the orthogonal direction.
- FIG. 1 is a three-sided view illustrating an appearance of a biological information measuring apparatus according to an embodiment.
- 1A is a top view
- FIG. 1B is a side view
- FIG. 1C is a bottom view.
- FIG. 2 is a cross-sectional view taken along line II shown in FIG. 1 in the biological information measuring apparatus of the embodiment.
- FIG. 3 is a cross-sectional view taken along the line II-II shown in FIG. 1 in the biological information measuring apparatus according to the embodiment including the first finger misalignment inhibiting unit (first finger misalignment preventing unit) according to the first aspect.
- FIG. 4 is a plan view of the abdomen receiving portion in the biological information measuring device according to the embodiment including the first finger displacement inhibiting portion of the first aspect.
- FIG. 1 is a three-sided view illustrating an appearance of a biological information measuring apparatus according to an embodiment.
- 1A is a top view
- FIG. 1B is a side view
- FIG. 1C is a bottom view.
- FIG. 5 is a cross-sectional view taken along the line II-II shown in FIG. 1 in the biological information measuring device of the embodiment including the first finger misalignment inhibiting unit of the second aspect.
- FIG. 6 is a cross-sectional view taken along the line II-II shown in FIG. 1 in the biological information measuring apparatus according to the embodiment including the first finger misalignment inhibiting unit of the third aspect.
- FIG. 7 is a block diagram illustrating an electrical configuration of the biological information measuring apparatus according to the embodiment.
- the biological information measuring device in the embodiment is a device that measures predetermined physiological information (biological information) from the living body by being attached to a part of the living body. More specifically, this biological information measuring device is attached to a biological finger (for example, a finger), irradiates the biological finger with predetermined measurement light, and receives detection light coming from within the finger based on the measurement light.
- the photoelectric device obtains predetermined biological information based on the light reception result.
- the predetermined biological information is, for example, a biological pulse wave, pulse rate, pulse cycle, blood oxygen saturation, blood glucose level, and the like.
- Such a biological information measuring device D includes, for example, a main body 1 and a mounting portion 2 for mounting a biological finger, as shown in FIGS.
- a biological information measuring device D includes, for example, a main body 1 and a mounting portion 2 for mounting a biological finger, as shown in FIGS.
- an XYZ orthogonal coordinate system having the longitudinal direction of the biological information measuring device D as the X direction is set, and this XYZ orthogonal coordinate system is appropriately used for explanation of the biological information measuring device D.
- the main body 1 processes a light reception result obtained by projecting and receiving light on a finger mounted on the mounting unit 2, and has a substantially rectangular parallelepiped box-shaped housing 11 and FIG. 7. Electrical components 4 to 8 are provided.
- the casing 11 is manufactured by molding using a mold, for example, from a resin material such as plastic, which can protect each of the components 4 to 8 from damage during use, transportation and storage of the biological information measuring device D.
- the biological information measuring device D includes, for example, an irradiation light receiving unit 4, a control processing unit 5, an input unit 6, as shown in FIG. A communication unit 7 and a power supply unit 8 are provided.
- the irradiation light receiving unit 4 is connected to the control processing unit 5 and irradiates a biological finger with predetermined measurement light, and uses detection light coming from within the finger based on the measurement light to obtain predetermined biological information. In order to do so, it receives light. More specifically, the irradiation light receiving unit 4 is configured to irradiate the finger with measurement light according to the control of the control processing unit 5, and the control processing unit 5 receives the detection light and receives the light reception result (photoelectric pulse wave signal). And a light receiving unit 42 for outputting to the receiver. The detection light is obtained by allowing the measurement light to pass through the finger or reflecting the measurement light within the finger.
- the irradiation unit 41 and the light receiving unit 42 are appropriately arranged so as to be able to use the transmitted detection light (for example, facing and spaced apart), or appropriately arranged so that the reflected detection light can be used. They are arranged in a relationship (for example, adjacent juxtaposition).
- the irradiation unit 41 and the light receiving unit 42 are arranged to face each other with a predetermined interval so that transmitted detection light can be used. (Opposed).
- the measurement light is light having a wavelength appropriately selected according to the type of biological information to be measured by the biological information measuring device D.
- the measurement light is, for example, red light.
- the measurement light is a plurality of lights having different wavelengths and different wavelengths, for example, two lights of red light and infrared light.
- the irradiation unit 41 includes an irradiation optical system, for example, a light source such as a light emitting diode (LED) and its peripheral circuit such as a drive circuit
- the light receiving unit 42 includes a light receiving optical system such as a photoelectric conversion element such as a silicon photodiode, and the like.
- a peripheral circuit such as a current-voltage conversion circuit.
- the control processing unit 5 is a circuit for controlling each unit of the biological information measuring device D according to the function of each unit and obtaining predetermined biological information based on the light reception result of the light receiving unit 42 in the irradiation light receiving unit 4.
- it comprises a microcomputer having a CPU (Central Processing Unit), a memory, and peripheral circuits thereof.
- a control unit 51 and a biological information processing unit 52 are functionally configured by executing a program.
- the control part 51 is for controlling each part of the biological information measuring device D according to the function of each part.
- the biological information processing unit 52 is for obtaining predetermined biological information based on the light reception result (photoelectric pulse wave signal) of the light receiving unit 42 in the irradiation light receiving unit 4.
- the oxygen saturation is approximately the first and second obtained by a photodetector by irradiating a living body with first light having a wavelength of 660 nm and second light having a wavelength of 940 nm, respectively.
- the direct current components in the second signal are DC1 and DC2
- the alternating current components are AC1 and AC2, they are calculated from (AC1 / DC1) / (AC2 / DC2).
- oxygen saturation is roughly calculated by utilizing the difference in absorbance between oxyhemoglobin and hemoglobin in red light having a wavelength of 660 nm and infrared light having a wavelength of 815 nm. It has been demanded. That is, red light with a wavelength of 660 nm has the largest difference in absorption coefficient between oxyhemoglobin and hemoglobin, while infrared light with a wavelength of 815 nm has the same difference in absorption coefficient between oxyhemoglobin and hemoglobin. For this reason, the amount of transmitted red light increases as the amount of hemoglobin increases. On the other hand, the amount of transmitted infrared light does not change even if the ratio of oxygenated hemoglobin to hemoglobin changes. Thereby, it becomes possible to obtain
- the input unit 6 is connected to the control processing unit 5 and is a circuit for inputting instructions such as on / off and measurement start, and includes, for example, a button switch.
- the communication unit 7 is a circuit that is connected to the control processing unit 5 and transmits a communication signal to an external device by, for example, a wireless method.
- the communication unit 7 may transmit the light reception result (photoelectric pulse wave signal) obtained by the light receiving unit 42 of the irradiation light receiving unit 4 to an external device as it is. Thereby, the biological information processing unit 52 of the control processing unit 5 can be omitted.
- the power supply unit 8 is a circuit for supplying power to each unit that requires power, such as the irradiation unit 41, the control processing unit 5, and the communication unit 7 in the biological information measuring apparatus D.
- the power supply unit 8 includes a battery, for example, a secondary battery and its peripheral circuit.
- a light receiving element 422 to be described later in the light receiving unit 42 is accommodated in the mounting unit 2, and the irradiation light receiving unit 4, the control processing unit 5, the input unit 6, the communication unit 7, and the power supply unit 8 except for this are accommodated in the housing 11.
- the mounting unit 2 is a member for mounting a biological finger (for example, a human finger) when measuring predetermined biological information. Installed and connected. More specifically, the mounting part 2 includes, for example, a mounting main body part 21, a stopper part 22, a first finger dropout inhibiting part 23, and a first finger deviation inhibiting part 24 in the present embodiment.
- the mounting main body 21 is inserted into the insertion / extraction opening OH for inserting / removing the living body finger, the accommodation space SS for accommodating the living body finger inserted from the insertion / extraction opening OH, and the accommodation space SS.
- the member is formed with an abdomen receiving surface 211S for receiving the belly (the inner side of the fingertip, the part having the fingerprint, the surface facing the nail) in the finger of the living body.
- the mounting main body portion 21 further forms a back receiving surface 212S that faces the accommodation space SS and receives the back (outside of the fingertip, the surface on the nail side) of the living body finger inserted from the insertion / extraction opening OH.
- the mounting main body portion 21 of the mounting portion 2 includes an abdomen receiving portion 211, a back receiving portion 212, and a pair of first and second connecting portions 213-1 and 213-2.
- the abdomen receiving portion 211 has a substantially rectangular plate shape having an abdominal receiving surface 211S for receiving the abdomen of the living body finger when the living body finger is mounted in the accommodation space SS through the insertion / extraction opening OH. It is a member.
- the back support part 212 is a substantially rectangular plate having a back support surface 212S on one side for receiving the back of the living body finger when the living body finger is mounted in the accommodation space SS through the insertion / extraction opening OH. It is a member.
- the pair of connecting portions 213-1 and 213-2 are substantially rectangular plate-like members that connect the belly receiving portion 211 and the back receiving portion 212 to each other.
- the abdomen receiving portion 211 and the back receiving portion 212 are opposed to each other with the abdominal receiving surface 211S and the back receiving surface 212S spaced apart by a predetermined distance so as to form the accommodation space SS.
- One end side (+ Z direction end side) in the short direction (Z direction) of the first connecting portion 213-1 is one end side (+ Y direction) in the long direction (Y direction) of the back support portion 212.
- the other end side in the short direction (Z direction) of the first connecting portion 213-1 (the end side in the ⁇ Z direction) is one side in the long direction (Y direction) of the belly receiving portion 211. It is connected to the end side (end side in + Y direction).
- the one end side in the short direction (Z direction) of the second connecting portion 213-2 (the end side in the + Z direction) is the other end side in the long direction (Y direction) of the back support portion 212 (in the ⁇ Y direction).
- the other end side in the short direction (Z direction) (the end side in the ⁇ Z direction) of the second connecting portion 213-1 is the other end in the long direction (Y direction) of the belly receiving portion 211. It is connected to the side (the end side in the -Y direction).
- the belly receiving portion 211, the first connecting portion 213-1, the back receiving portion 212, the second connecting portion 213-2 and the belly receiving portion 211 are sequentially connected in this order in the circumferential direction (around the X axis).
- the belly receiving portion 211, the first connecting portion 213-1, the back receiving portion 212, and the second connecting portion 213-2 form a hollow columnar shape (tubular shape).
- the opening at one end of the hollow columnar body is an insertion / extraction opening OH for inserting / removing a finger of the living body, and the internal space of the hollow columnar body is inserted into the insertion / extraction opening (opening at the one end) OH.
- the belly receiving surface 211S of the belly receiving portion 211 faces the accommodation space SS facing the + Z direction
- the back receiving surface 2121S of the back receiving portion 212 faces the accommodation space SS facing the ⁇ Z direction.
- the belly receiving portion 211, the back receiving portion 212, the first and second connecting portions 213-1 and 213-2 include an elastic body that generates an elastic force for holding a finger, for example.
- a single body is formed by molding using a mold to form a mounting main body 21.
- the elastic body for example, a polymer material such as rubber and a spring are used.
- substantially all of the mounting main body 21 may be formed of a resin such as rubber having elasticity. Further, for example, it may be formed of a resin in which a substantially U-shaped leaf spring is embedded.
- the space between the belly receiving surface 211S of the belly receiving portion 211 and the back receiving surface 212S of the back receiving portion 212 is narrower than the thickness of the finger accommodated in the accommodating space SS, and the accommodating space is Z
- the mounting main body 21 is configured so that the elastic force acts in the direction of closing in the direction.
- the inner surface of the back support 212 is radially inner ( ⁇ ) as it moves away from the substantially central position in the longitudinal direction (Y direction) in both longitudinal directions (+ Y direction and ⁇ Y direction). It is gradually higher toward (Z direction).
- the back receiving portion 212 has a curved surface that substantially conforms to the external shape of the back of the living body's finger so that the hollow columnar body is radially outward (+ Z direction) at the approximate center in the longitudinal direction (Y direction).
- a recess that is curved and recessed is formed. The curved surface in this recess is the back support surface 212S.
- a through-hole having a predetermined shape and penetrating and opening in the thickness direction (Z direction) of the back support portion 212 is formed at a substantially center of the back support surface 212S of the back support portion 212.
- An optical window 411 is disposed.
- the light projection window 411 is a plate-shaped member that can be fitted into the through hole formed of a material that transmits at least the wavelength of the measurement light.
- One surface of the light projection window 411 faces the accommodation space SS, and the back support surface 212S.
- the other surface facing the one surface is opposed to the light emitting surface of a light emitting element (not shown) in the irradiation unit 41.
- the back support surface 212S is a measurement region surface for irradiating measurement light to measure predetermined biological information.
- the surface of the light projection window part 411) is included.
- a concave portion that is curved and recessed toward the radially outer side of the hollow columnar body is formed at the approximate center in the longitudinal direction (Y direction).
- the recess is formed in a curved surface in both the long direction (Y direction) and the short direction (X direction) perpendicular thereto so as to substantially conform to the external shape of the belly of the living body finger, and this curved surface is the abdomen receiving surface 211S. It becomes.
- a through-hole having a predetermined shape and penetrating and opening in the thickness direction (Z direction) of the abdomen receiving part 211 is formed at a substantially center of the abdomen receiving part 211S of the abdomen receiving part 211.
- the window portion 421, the light receiving element 422, the light receiving element substrate 423, and the retaining band portion 27 are sequentially stacked in this order from the radially inner side to the radially outer side of the hollow columnar body.
- the light receiving window portion 421 is a plate-like member that can be fitted into the through-hole formed of a material that transmits at least the wavelength of the detection light, and one surface thereof faces the housing space and faces the stomach receiving surface 211S. The other surface facing the one surface is opposed to the light receiving surface of the light receiving element 422.
- the abdomen receiving surface 211S can measure a measurement region surface for receiving detection light (in order to measure predetermined biological information) (
- the surface of the light receiving window 412 is included.
- the light receiving element 422 is the above-described photoelectric conversion element of the light receiving unit 42
- the light receiving element substrate 423 is a support member that supports the light receiving element 422.
- the fastening band portion 27 is a band-shaped member, and as shown in FIG. 1, one portion from the center goes around each outer periphery of a part of the belly receiving portion 211, the first connecting portion 213-1 and the back receiving portion 212.
- the tip is connected and fixed to one side surface of the housing 11 in the main body 1, and the other part from the center is the outer periphery of a part of the belly receiving part 211, the second connecting part 213-2 and the back receiving part 212. , And the tip is connected and fixed to the other side surface of the housing 11 in the main body 1.
- the fastening band portion 27 holds the light receiving window portion 421, the light receiving element 422, and the light receiving element substrate 423 in the through hole, and the light receiving window portion 421, the light receiving element 422, and the light receiving element substrate 423 are dropped from the through hole. prevent.
- the stopper portion 22 is a member that stops the finger of the living body, and is disposed so as to be located in the opening at the other end (opening facing the insertion / extraction opening OH) in the hollow columnar body. More specifically, the stopper portion 22 is located radially inward (+ Z direction) of the hollow columnar body from the other end ( ⁇ X direction end) of the belly receiving portion 211 on the opening side of the other end of the hollow columnar body. This is a projecting piece that is extended by a predetermined length.
- This stopper portion 22 prevents the living body finger inserted into the accommodation space SS from the insertion / extraction opening OH of the mounting body portion 21 from coming into contact with the stopper portion 22, thereby preventing the living body finger from deviating from the accommodation space SS.
- a living body finger can be quickly and appropriately positioned at a position where light should be projected and received in order to measure predetermined biological information.
- the first finger omission prevention unit (first finger misalignment prevention unit) 23 is arranged between the position where the irradiation light receiving unit 4 is arranged and the opening position of the insertion / extraction opening OH, and a living finger inserted into the accommodation space SS It is a member for inhibiting the escape from the accommodation space SS. More specifically, in the present embodiment, the first finger omission inhibiting portion 23 is formed on the measurement region surface (the surface of the light receiving window portion 412 in the present embodiment) for receiving the detection light on the belly receiving surface 211S. It arrange
- the first finger omission inhibiting portion 23 is a ridge that protrudes toward the inner side of the accommodation space SS at a predetermined height with respect to the abdomen receiving surface 211S and intersects the insertion / extraction direction for inserting / removing a biological finger. More specifically, the first finger omission inhibiting portion 23 is disposed at one end (end portion on the insertion / extraction opening OH side) of the hollow columnar body, and extends by a predetermined length in the longitudinal direction (Y direction) The protrusion is higher than the belly receiving surface 211S by a predetermined height toward the radially inner side (+ Z direction) of the hollow columnar body.
- one end (+ X direction end) of the belly receiving portion 211 is radially inward (+ Z direction) of the hollow columnar body.
- the first finger omission inhibition portion 23 is formed by extending a predetermined length toward the end. Therefore, the first finger omission inhibiting portion 23 of this ridge is arranged so as to be orthogonal to the insertion / extraction direction.
- the predetermined height (the length in the Z direction) is, for example, several mm, preferably about 1 to 2 mm from the viewpoint of effectively inhibiting finger removal.
- the predetermined width (the length in the X direction) is, for example, from sub mm to several mm, preferably from about 0.5 to 2 mm, from the viewpoint of effectively inhibiting finger removal.
- the predetermined length (the length in the Y direction) is, for example, about several millimeters to several tens of millimeters, and preferably about 5 to 10 millimeters from the viewpoint of effectively inhibiting finger removal.
- the predetermined length is the same as the length in the longitudinal direction (Y direction) of the belly receiving surface 211S.
- the first finger displacement inhibiting part 24 (24-1, 24-2) extends along the insertion / extraction direction (short direction of the abdomen receiving part 211, X direction) for inserting / removing a biological finger, and is received by the abdominal receiving surface 211S. Further, it is a member for inhibiting the living body fingers from shifting in the orthogonal direction (Y direction) orthogonal to the insertion / extraction direction, and is provided on both sides of the belly receiving surface 211S in the orthogonal direction as a pair.
- the configurations of the first to third modes are preferably used.
- the finger misalignment inhibiting unit 24a (24a-1, 24a-2) of the first aspect and the biological information measuring device Da using the same are shown in FIGS. 3 and 4, and the finger misalignment inhibiting unit 24b (24b of the second aspect).
- -1, 24b-2) and the biological information measuring device Db using the same are shown in FIG. 5, and the finger misalignment inhibiting unit 24c (24c-1, 24c-2) of the third embodiment and the same are used.
- the biological information measuring device Dc is shown in FIG.
- the pair of first finger misalignment inhibiting portions 24 a of the first aspect has a shape extending along the insertion / extraction direction (X direction) and has a predetermined depth with respect to the abdomen receiving surface 211 ⁇ / b> S. Adjacent to the groove 241a (241a-1, 241a-2) and the groove 241a (241a-1, 241a-2) which are recessed toward the outside of the accommodation space SS in the orthogonal direction outside (Y direction outside).
- the outer side of each side of the belly receiving surface 211S extends along the insertion / extraction direction (X direction) and has a predetermined depth from the belly receiving surface 211S toward the outside of the accommodation space SS by a predetermined width.
- the pair of first finger misalignment inhibiting portions 24a of the first aspect including the pair of concave and convex strips 24a-1 and 24a-2 is formed.
- the predetermined depth (length in the Z direction) of the groove 241a with respect to the belly receiving surface 211S is, for example, sub mm to several mm from the viewpoint of effectively inhibiting finger misalignment, and is preferably 0 About 5 to 1.5 mm.
- the predetermined width (the length in the Y direction) in the groove 241a is, for example, several mm, preferably about 2 to 4 mm, from the viewpoint of effectively inhibiting finger misalignment.
- the predetermined height (length in the Z direction) of the protrusion 242a with respect to the belly receiving surface 211S is, for example, sub mm to several mm from the viewpoint of effectively inhibiting finger misalignment, About 0.5 to 1.5 mm.
- the predetermined width (the length in the Y direction) of the protrusion 242a is, for example, several mm, preferably about 2 to 4 mm, from the viewpoint of effectively inhibiting finger misalignment.
- the pair of first finger misalignment inhibiting portions 24 b in the second aspect has a shape extending along the insertion / extraction direction (X direction), and is an accommodation space at a predetermined height with respect to the belly receiving surface 211 ⁇ / b> S.
- a pair of projecting bodies 24b-1 and 24b-2 projecting inward toward the SS.
- the outer side of each side of the belly receiving surface 211S extends along the insertion / extraction direction (X direction) and has a predetermined height and a predetermined width from the belly receiving surface 211S toward the inside of the accommodation space SS.
- a pair of first finger misalignment inhibiting portions 24b of the second mode consisting of the pair of projecting bodies 24b-1 and 24b-2 is formed.
- the predetermined height is, for example, sub mm to several mm, and preferably about 0.5 to 1.5 mm from the viewpoint of effectively inhibiting finger misalignment.
- the predetermined width is, for example, several mm, preferably about 2 to 4 mm, from the viewpoint of effectively inhibiting finger misalignment.
- the pair of first finger misalignment inhibiting portions 24c in the third aspect is a pair of roughened rough bodies as shown in FIG.
- the pair of first finger misalignment inhibiting portions 24c of the third aspect is a rectangular region that is long in the insertion / extraction direction (X direction) on the outer sides of both sides of the abdominal receiving surface 211S.
- a pair of rough surface layers are formed by roughening the surface of 211 in the Z direction.
- the rough surface layer is formed, for example, by transferring a rough surface shape formed on a mold.
- the length of the rectangular shape in the lateral direction (Y direction) in the first finger misalignment inhibiting portion 24c is about several mm, preferably about 4 to 8 mm. is there.
- the roughness of the rough surface is, for example, a ten-point average roughness Rz of about 0.03 mm to 0.3 mm.
- the lengths in the substantially X direction of the pair of first finger misalignment inhibiting portions 24a to 24c in the first to third modes described above are the lengths extending over the entire side of the belly receiving surface 211S (the first mode). In this case, the length over a part of the side of the belly receiving surface 211S may be used. For example, the length may include the entire side of the light receiving window 421 and may extend over a part of the side of the belly receiving surface 211S.
- the pair of first finger misalignment inhibiting portions 24 a to 24 c having such a length are disposed on the outer sides of the both sides of the belly receiving surface 211 ⁇ / b> S corresponding to the both sides of the light receiving window 421.
- the pair of first finger deviation inhibiting portions 24a to 24c in the first to third aspects described above are continuous in the substantially X direction, but may be intermittent as indicated by a broken line.
- the length of the main body part 1 in the longitudinal direction (X direction) is longer than the length of the mounting part 2 in the X direction. More than twice the length.
- the mounting portion 2 is integrated with the main body portion 1 by a predetermined connection method such that the center position in the X direction is closer to the other end side in the X direction ( ⁇ X direction end) than the center position in the X direction of the main body portion 1.
- the connection method include integral molding, fastening of screws and the like, adhesion of an adhesive, and fitting between a fitting recess and a fitting protrusion.
- FIG. 8 is an external perspective view showing a state where a human finger is attached to the biological information measuring device according to the embodiment.
- FIG. 9 is a partial cross-sectional view illustrating a state in which a human finger is attached to the biological information measuring device according to the embodiment.
- the elastic force for pinching the biological finger inserted into the accommodation space SS through the insertion / extraction opening OH is generated by the elastic body of the mounting main body 21, and the insertion / extraction opening OH and the accommodation space SS are , Elastically deformed in the closing direction in the Z direction.
- the distance from the belly receiving surface 211S to the back receiving surface 212S in the elastically deformed accommodation space SS is shorter (narrower) than the thickness of the finger of the living body to be measured.
- the insertion / extraction opening OH and the accommodation space SS are expanded in the ⁇ Z direction against the elastic force generated by the elastic body of the attachment main body 21.
- the living body finger HF is inserted into the accommodation space SS through the insertion opening OH in the ⁇ X direction as shown in FIG.
- the attachment body in the direction of closing the insertion / extraction opening OH and the accommodation space SS in the Z direction by the elastic force generated by the elastic body of the attachment body 21.
- the living body finger HF is pinched by the mounting main body portion 21 as the portion 21 is about to deform.
- the measurement light emitted from the irradiation unit 41 of the irradiation light receiving unit 4 in the region from the tip of the living body finger HF inserted into the accommodation space SS through the insertion / extraction opening OH to the first joint is provided.
- the living body finger HF may be disposed in the accommodation space SS so that detection light caused by the measurement light is received by the light receiving section 42 of the irradiation light receiving section 4 through the living body finger HF. .
- a pair of first finger misalignment inhibiting portions 24 (24a to 24c) extending in the insertion / extraction direction are disposed on both sides of the abdominal support surface 211S. .
- the biological finger placed on the abdominal support surface 211S and received by the abdominal support surface 211S is rotated around the insertion / extraction direction (rotation about the X axis) with respect to the biological finger by the pair of first finger displacement inhibiting units 24.
- displacement in the orthogonal direction position displacement in the Y direction
- the biological information measuring device D in the present embodiment can reduce the pressure applied to the finger, and can reduce the positional deviation of the finger with respect to the measurement position.
- the biological information measuring device D in the present embodiment is any one of the pair of protrusions 24a of the first aspect, the pair of uneven protrusions 24b of the second aspect, and the pair of rough surfaces 24c of the third aspect.
- the first finger misalignment inhibiting portion can be realized relatively easily.
- the biological finger arrange
- the contact with either one of the pair of protrusions 24a will impede rotation around the insertion / removal direction and a position shift in the orthogonal direction, thereby making the position of the finger more stable.
- the pair of first finger misalignment inhibiting portions 24 is configured by a pair of concavo-convex strips 24b, the biological finger placed on the abdominal receiving surface 211S and received by the abdominal receiving surface 211S is rotated or orthogonal to the insertion / extraction direction.
- the biological finger placed on the abdominal support surface 211S and received by the abdominal support surface 211S is rotated around the insertion / extraction direction or in the orthogonal direction. If it is attempted to cause the position shift, the contact with one of the pair of rough surfaces 24c hits one another, so that rotation around the insertion / removal direction and position shift in the orthogonal direction are hindered, and the position of the finger becomes more stable.
- the biological information measuring device D may further include a second finger deviation inhibiting unit.
- FIG. 10 is a cross-sectional view taken along the line II shown in FIG. 1 in the biological information measuring device of the embodiment further including a second finger misalignment inhibiting unit (second finger misalignment preventing unit).
- second finger misalignment inhibiting unit second finger misalignment preventing unit
- the second finger misalignment inhibiting portion (second finger misalignment preventing portion) 26 extends along the insertion / extraction direction (short direction of the back support portion 212, X direction) for inserting and removing a living body finger, and is received by the abdominal support surface 211S. Further, it is a member for inhibiting the biological finger from shifting in the orthogonal direction (Y direction), and is provided on both sides of the back support surface 212S in the orthogonal direction as a pair.
- the configurations of the first to third aspects are preferably used for the second finger misalignment inhibiting unit 26. If it demonstrates typically by the 2nd finger shift
- the outer sides of the back support surface 212S extend along the insertion / extraction direction (X direction) and have a predetermined width and a predetermined depth from the back support surface 212S toward the outside of the accommodation space SS.
- the dent and orthogonal direction outside extends along the insertion / extraction direction (X direction) and protrudes from the bottom surface of the dent toward the inside of the accommodation space SS at a predetermined height and a predetermined width.
- a pair of second finger displacement inhibiting portions 26a composed of a pair of concave and convex strips 26a-1 and 26a-2 are formed.
- the predetermined depth (length in the Z direction) of the groove 261a with respect to the back support surface 212S is, for example, sub mm to several mm from the viewpoint of effectively inhibiting finger misalignment, and is preferably 0 About 5 to 1.5 mm.
- the predetermined width (the length in the Y direction) in the groove 261a is, for example, several mm, preferably about 2 to 4 mm, from the viewpoint of effectively inhibiting finger misalignment.
- the predetermined height (the length in the Z direction) of the protrusion 262a with respect to the back support surface 212S is, for example, sub mm to several mm from the viewpoint of effectively inhibiting finger misalignment, About 0.5 to 1.5 mm.
- the predetermined width (the length in the Y direction) of the protrusion 262a is, for example, several mm, preferably about 2 to 4 mm, from the viewpoint of effectively inhibiting finger misalignment.
- the length in the substantially X direction of the pair of second finger misalignment inhibiting portions 26a may be the length over the entire side of the back support surface 212S, and may be part of the side of the back support surface 212S. It can be a long length. For example, it may be a length including the entire side of the light projection window and a length extending over a part of the side of the back receiving surface 212S.
- the pair of second finger misalignment inhibiting portions 26a having such a length are disposed on the outer sides of both sides of the back support surface 212S corresponding to the both sides of the light projection window.
- the pair of second finger deviation inhibiting portions 24a may be continuous in the substantially X direction, and may be intermittent as indicated by a broken line.
- a pair of second finger displacement inhibiting portions 26 extending in the insertion / extraction direction includes a back receiving surface 212S. It is arrange
- the biological information measuring device D (Da to Dd) is configured such that the projection window portion 411 that irradiates the measurement light is configured in the back support portion 22 in order to measure predetermined biological information.
- the light receiving window portion 412 for receiving light is configured in the belly receiving portion 21, it may be reversed. That is, the light projection window 411 that irradiates the measurement light may be configured in the belly receiver 21, and the light receiving window 412 that receives the detection light may be configured in the back receiver 22.
- the belly receiving surface 211S (back receiving surface 212S) is an irradiation surface (in the above example, the surface of the light projection window 411) irradiated with measurement light and a light receiving surface (in the above example, receiving light) that receives detection light.
- a light receiving surface in the above example, receiving light
- the mounting main body 21 includes the abdomen receiving part 211, the back receiving part 212, the pair of first and second connecting parts 213-1, 213-2 and the hollow columnar body having an annular cross section, but is not limited thereto.
- the mounting main body 21 may be in any form that can be mounted on a biological finger.
- the mounting main body portion 21 includes an abdomen receiving portion 211, a back receiving portion 212, and a connecting portion 213-1 (or connecting portion 213-2) that connects them at one end, and has a substantially C-shaped cross section.
- a hollow columnar body in which a part of the circumferential surface is open along the (substantially U-shaped) axial direction may be used.
- the mounting main body portion 21 may be a band formed of a pair of band-like members that extend from both side surfaces of the housing 11 of the main body portion 1 and are elongated along one direction.
- the mounting main body portion 21 is a band
- the irradiation portion 41 and the light receiving portion 42 in the irradiation light receiving portion 4 are juxtaposed with the casing 11 of the main body portion 1.
- a biological information measurement device includes a mounting unit for mounting a finger of a living body, and irradiating the finger mounted on the mounting unit with measurement light, and detecting from within the finger based on the measurement light
- an irradiation light receiving unit for receiving light is provided, and the mounting unit is inserted through the insertion / extraction opening for inserting / removing the finger of the biological body, and the insertion / extraction opening
- An irradiation body that includes an accommodation space that accommodates the living body finger formed and an abdomen receiving surface that faces the accommodation space and receives a belly of the living body finger inserted from the insertion / extraction opening; The portion is arranged so as to receive the detection light by irradiating the accommodation space with the measurement light, and the mounting body portion extends along an insertion / extraction direction for inserting / removing the finger of the living body, The living body finger received in the insertion / extraction direction
- a pair of first finger displacement inhibiting portions extending in the insertion / extraction direction are arranged on both sides of the abdominal bearing surface. For this reason, the biological finger placed on the abdominal receiving surface and received by the abdominal receiving surface can be prevented from rotating around the insertion / extraction direction and the positional deviation in the orthogonal direction with respect to the biological finger by the pair of first finger displacement inhibiting portions. . Therefore, such a biological information measurement device can reduce the pressure applied to the finger and can reduce the positional deviation of the finger with respect to the measurement position.
- the pair of first finger displacement inhibition portions protrudes toward the inside of the housing space at a predetermined height with respect to the abdomen receiving surface.
- a groove that is recessed toward the outside of the housing space at a predetermined depth with respect to the belly receiving surface, and a groove that is juxtaposed adjacent to the groove and inside the housing space at a predetermined height with respect to the belly receiving surface It is any one of a pair of uneven
- Such a biological information measuring device can realize the first finger displacement inhibiting portion relatively easily with any one of the ridge, concavo-convex ridge and rough surface.
- a pair of 1st finger gap inhibition part is constituted by a pair of protrusions
- a living body finger arranged on an abdominal receiving surface and received by an abdominal receiving surface is rotated around an insertion / extraction direction or in an orthogonal direction. If an attempt is made to cause a positional shift, it will hit one of the pair of protrusions, so that rotation around the insertion / removal direction and a positional shift in the orthogonal direction are hindered, and the position of the finger becomes more stable.
- the biological finger placed on the abdominal support surface and received by the abdominal support surface rotates around the insertion / extraction direction or is displaced in the orthogonal direction. If it tries to raise
- the finger in order to monitor (monitor, observe) the state of the measurement subject, even when the biological information measurement device is worn for a relatively long time, the finger is held in a better state.
- the pair of first finger misalignment inhibiting portions is constituted by a pair of rough surfaces
- the living body finger placed on the abdominal support surface and received by the abdominal support surface is rotated around the insertion / extraction direction or displaced in the orthogonal direction.
- it hits one of the pair of rough surfaces, so that rotation around the insertion / removal direction and displacement in the orthogonal direction are hindered, and the position of the finger becomes more stable.
- the device main body further includes a back surface that faces the accommodation space and receives a back of the finger of the living body inserted from the insertion / extraction opening, A pair of second finger displacement inhibiting portions that extend along the insertion / extraction direction and inhibit the biological finger received by the belly receiving surface from being displaced in the orthogonal direction, are arranged on both sides of the back receiving surface in the orthogonal direction. Further prepare for.
- a pair of second finger displacement inhibiting portions extending in the insertion / extraction direction are disposed on both sides of the back receiving surface. For this reason, the biological finger placed on the abdominal receiving surface and received by the abdominal receiving surface is rotated around the insertion / extraction direction by the pair of first and second finger misalignment inhibiting portions, or positioned in the orthogonal direction. Deviation can be further inhibited. Therefore, such a biological information measuring device can further reduce the pressure applied to the finger and can further reduce the positional deviation of the finger with respect to the measurement position.
- the biological information measuring device which measures predetermined
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Abstract
Description
Claims (3)
- 生体の指を装着するための装着部と、
前記装着部に装着された前記指に測定光を照射し、前記測定光に基づく前記指内から来た検出光を、所定の生体情報を求めることに利用するために、受光するための照射受光部とを備え、
前記装着部は、前記生体の指を挿抜するための挿抜開口と、前記挿抜開口から挿入された前記生体の指を収容する収容空間と、前記収容空間に臨み、前記挿抜開口から挿入された前記生体の指における腹を受ける腹受け面とを形成した装着本体部を備え、
前記照射受光部は、前記収容空間に対し測定光を照射して前記検出光を受光するように配設され、
前記装着本体部は、前記生体の指を挿抜する挿抜方向に沿って延び、前記腹受け面で受けられた前記生体の指が前記挿抜方向と直交する直交方向にずれることを阻害する一対の第1指ズレ阻害部を、前記直交方向における前記腹受け面の両側辺に備えること
を特徴とする生体情報測定装置。 - 前記一対の第1指ズレ阻害部は、前記腹受け面に対し所定の高さで前記収容空間内側に向けて突出した一対の突条体、前記腹受け面に対し所定の深さで前記収容空間外側に向けて窪んだ溝条体と前記溝条体に隣接して並置され前記腹受け面に対し所定の高さで前記収容空間内側に向けて突出した突条体とを組み合わせた一対の凹凸条体、および、粗面化された一対の粗面体のうちのいずれか1つであること
を特徴とする請求項1に記載の生体情報測定装置。 - 前記装置本体部は、
前記収容空間に臨み、前記挿抜開口から挿入された前記生体の指における背を受ける背受け面をさらに形成し、
前記挿抜方向に沿って延び、前記腹受け面で受けられた前記生体の指が前記直交方向にずれることを阻害する一対の第2指ズレ阻害部を、前記直交方向における前記背受け面の両側辺にさらに備えること
を特徴とする請求項1または請求項2に記載の生体情報測定装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14859476.5A EP3066980A4 (en) | 2013-11-08 | 2014-09-10 | Living body information measurement device |
| US15/030,219 US20160270730A1 (en) | 2013-11-08 | 2014-09-10 | Living body information measurement device |
| JP2015546326A JPWO2015068465A1 (ja) | 2013-11-08 | 2014-09-10 | 生体情報測定装置 |
| CN201480060809.1A CN105744885A (zh) | 2013-11-08 | 2014-09-10 | 生物体信息测定装置 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-231659 | 2013-11-08 | ||
| JP2013231659 | 2013-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015068465A1 true WO2015068465A1 (ja) | 2015-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2014/073974 Ceased WO2015068465A1 (ja) | 2013-11-08 | 2014-09-10 | 生体情報測定装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20160270730A1 (ja) |
| EP (1) | EP3066980A4 (ja) |
| JP (1) | JPWO2015068465A1 (ja) |
| CN (1) | CN105744885A (ja) |
| WO (1) | WO2015068465A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200085093A (ko) * | 2019-01-04 | 2020-07-14 | 주식회사 포에스텍 | 독거노인 생활관리사의 공공복지를 위한 스마트 케어 시스템 |
| JPWO2022249907A1 (ja) * | 2021-05-27 | 2022-12-01 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10321860B2 (en) * | 2015-07-19 | 2019-06-18 | Sanmina Corporation | System and method for glucose monitoring |
| USD894397S1 (en) * | 2017-07-07 | 2020-08-25 | Tácito Mistrorigo De Almeida | Finger clip type oximeter |
| US10485431B1 (en) * | 2018-05-21 | 2019-11-26 | ARC Devices Ltd. | Glucose multi-vital-sign system in an electronic medical records system |
| TWI669095B (zh) * | 2018-07-11 | 2019-08-21 | 國立臺灣科技大學 | 生理訊號量測裝置 |
| JP1716277S (ja) * | 2021-07-05 | 2022-05-31 | センサ装着体 | |
| JP1716228S (ja) * | 2021-07-05 | 2022-05-31 | センサ装着体 | |
| USD1061903S1 (en) * | 2021-07-05 | 2025-02-11 | Maxell, Ltd. | Sensor attaching article |
| US20250057432A1 (en) * | 2023-08-14 | 2025-02-20 | Daniel Antwi - Amoabeng | Heartbeat sensor device |
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- 2014-09-10 WO PCT/JP2014/073974 patent/WO2015068465A1/ja not_active Ceased
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200085093A (ko) * | 2019-01-04 | 2020-07-14 | 주식회사 포에스텍 | 독거노인 생활관리사의 공공복지를 위한 스마트 케어 시스템 |
| KR102173744B1 (ko) | 2019-01-04 | 2020-11-03 | 주식회사 포에스텍 | 독거노인 생활관리사의 공공복지를 위한 스마트 케어 시스템 |
| JPWO2022249907A1 (ja) * | 2021-05-27 | 2022-12-01 | ||
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| JP7582462B2 (ja) | 2021-05-27 | 2024-11-13 | 株式会社村田製作所 | 脈波測定装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3066980A4 (en) | 2017-06-21 |
| EP3066980A1 (en) | 2016-09-14 |
| US20160270730A1 (en) | 2016-09-22 |
| CN105744885A (zh) | 2016-07-06 |
| JPWO2015068465A1 (ja) | 2017-03-09 |
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