WO2019031527A1 - Dispositif de mesure de trc - Google Patents

Dispositif de mesure de trc Download PDF

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Publication number
WO2019031527A1
WO2019031527A1 PCT/JP2018/029664 JP2018029664W WO2019031527A1 WO 2019031527 A1 WO2019031527 A1 WO 2019031527A1 JP 2018029664 W JP2018029664 W JP 2018029664W WO 2019031527 A1 WO2019031527 A1 WO 2019031527A1
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WIPO (PCT)
Prior art keywords
sensor
crt
compression
pressure
clip piece
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PCT/JP2018/029664
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English (en)
Japanese (ja)
Inventor
俊哉 中口
孝明 中田
成人 織田
秀昭 羽石
Original Assignee
国立大学法人千葉大学
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Application filed by 国立大学法人千葉大学 filed Critical 国立大学法人千葉大学
Priority to JP2019535688A priority Critical patent/JP7098168B2/ja
Publication of WO2019031527A1 publication Critical patent/WO2019031527A1/fr

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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
    • A61B5/117—Identification of persons
    • A61B5/1171—Identification of persons based on the shapes or appearances of their bodies or parts thereof
    • A61B5/1172—Identification of persons based on the shapes or appearances of their bodies or parts thereof using fingerprinting
    • 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, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters

Definitions

  • the present invention relates to a CRT measurement device that measures capillary refill time in a part of a subject's body.
  • Capillary refilling time (CRT: hereinafter referred to as "CRT”) is a simple indicator for evaluating the presence or absence of shock, and it is necessary to judge the necessity of infusion or triage (at the time of the occurrence of many sick people) It is a method widely used in the field of emergency care such as priority evaluation). Specifically, the medical worker squeezes the finger of the subject, and visually confirms the change in color of the nail or the skin after releasing the pressure. If the color is returned to the original color within a predetermined time (about 2 to 3 seconds), it is determined that the color is normal. However, since it is a method of manually pressing a living tissue and visually confirming a change in skin color, it lacks quantitativeness and is likely to cause an error by the measurer. Therefore, various devices have been proposed for detecting a CRT by releasing the finger after inserting the fingertip into the probe and pressing the fingertip (see Patent Document 1 and Non-patent Document 1).
  • Patent Document 1 a living body utilizing the fact that when blood tissue of the subject (the finger tip of the subject) is pressed, the blood flow of the capillary decreases and the amount of transmitted light of the living tissue of the subject rapidly increases.
  • a signal measurement device is disclosed (see paragraphs [0041], [0050] and FIG. 1 of Patent Document 1).
  • the compression release timing is instructed after a predetermined time (about 5 seconds) elapses after the compression state of the biological tissue is stabilized. ing.
  • Non-Patent Document 1 discloses a device provided with a force applicator including a spring.
  • the spring is compressed by pushing this pressing tool, and the biasing force of the spring in the compressed state squeezes the fingertip attached to the device (“5.1 Mechanical Features” in Non-Patent Document 1). And Fig. 13 etc.).
  • the pressing force on the fingertip is made constant by providing a pressing device with a limiter that regulates the amount of compression of the spring.
  • the compression state of the biological tissue of the subject is determined based on the amount of light transmitted through the biological tissue, but the compression pressure on the biological tissue compresses the biological tissue.
  • the measurer does not know if the compression pressure is appropriate for For this reason, when the compression pressure does not reach the appropriate compression pressure, the amount of transmitted light of the living tissue does not increase rapidly, and the measurement may be stagnant until the measurer notices the lack of compression pressure.
  • compression pressure exceeds the appropriate compression pressure, the blood flow of the capillary decreases and the amount of transmitted light of the living tissue increases, so measurement can be performed, but depending on the measurer or measurement cycle, A difference in compression pressure may result in a difference in the measured CRT.
  • the device In the situation where triage is performed, it is necessary for many medical workers to perform measurement quickly for many sick people. For this reason, it is preferable that the device be inexpensive so that many medical workers can hold the measuring device, and it is preferable that the device be compact in size so that the device can be easily handled and portability is good.
  • the limiter is provided on the pressing tool to keep the compression pressure constant, so that the mechanism becomes complicated, and the device may be large in size and expensive. is there.
  • the compression time has no influence on the measurement result of the CRT, and the compression time is not controlled at all.
  • the measurement of CRT is based on the premise that the nail bed capillary bed is pressed once to whitening, and if the measurement is performed without whitening, there is a possibility that the reliability and consistency of the measurement may be lost. . For this reason, it is preferable to hold the compression time for a fixed time (for example, about 7 seconds) so as to obtain reliable whitening.
  • the fingertip is changed from the released state to the compressed state and then returned to the released state.
  • Non-Patent Document 1 In order to accurately measure the CRT, a series of released, compressed and released states of these fingertips It is necessary to switch states quickly. However, with the technique disclosed in Non-Patent Document 1, there is a possibility that the CRT can not be measured accurately because it can not detect whether this switching has been performed properly (rapidly).
  • the present invention has been made in view of the above problems, and it is possible to measure a CRT under constant conditions even in a manual operation, and also to reduce the manufacturing cost and reduce the size of the device. It aims at providing an apparatus.
  • the capillary refilling time of the test part after squeezing the test part which is a part of the subject's body by the measurer's manual operation The manual operation such that a standard compression condition in which at least one of the detected compression pressure and compression force on the subject part is maintained within a predetermined range for a predetermined time period is measured.
  • the time to return the blood color of the test part to return is counted, and based on the return time, the capillary blood vessel is reworked. And a measuring unit for measuring the filling time.
  • test part is a finger tip.
  • finger of the measurer is provided with first attachment means for attaching the first sensor and the second sensor.
  • test unit be provided with second mounting means for mounting the first sensor and the second sensor.
  • a first clip piece and a second clip piece which are detachably connected and in which the finger tip is inserted between mutually opposing sandwiching surfaces, the first sensor being a member of the first clip piece
  • the second sensor is provided on the first clip piece or the second clip piece, and the first clip piece and the second clip piece are deviated to the lower side from the predetermined range.
  • at least one of the pressure and the compression force is biased in the closing direction towards each other.
  • the said 1st sensor is protrudingly provided by the said clamping surface of the said 1st clip piece.
  • the second sensor is provided on the first clip piece, and the first sensor is provided on the holding surface of the first clip piece so as to protrude via the second sensor.
  • the second sensor be provided with an indenter for pressing the test portion on a surface facing the test portion when the compression is performed.
  • the indenter is preferably provided with an open part on the side facing the test part when the compression is performed, and the first sensor may be inserted into the open part.
  • the guidance section makes a first announcement that the compression pressure is within the predetermined range while the compression pressure and / or the compression force is within the predetermined range, and the period is It is preferable to perform a second announcement for ending the compression by the manual operation when the predetermined time is reached.
  • a third sensor for detecting the temperature of the test unit is provided, the measurement unit includes a temperature compensation unit, and the temperature compensation unit compensates the recovery time based on detection information of the third sensor.
  • the capillary refilling time is set.
  • a fingerprint detection sensor for detecting a fingerprint of the finger tip of the subject is provided.
  • the test portion (for example, a fingertip) which is a part of the subject's body is pressed by the manual operation of the measurer to be in the compressed state.
  • the operator's manual operation is induced such that at least one of the pressure conditions is maintained within a predetermined range for a predetermined time. Therefore, CRT can be accurately measured with less variation due to measurement under constant standard compression conditions even in manual operation.
  • the test part is compressed by the manual operation of the measurer and the manual operation of the measurer is guided to satisfy the standard compression condition, a complicated compression mechanism for establishing the standard compression condition is not required. Become. Therefore, it is possible to suppress the manufacturing cost of the CRT measurement apparatus and to reduce the size of the apparatus.
  • FIG. 1 It is a schematic diagram which shows the structure of the CRT measurement apparatus of 1st embodiment of this invention, Comprising: (a) is a typical perspective view which shows whole structure, (b) is pressed by a test subject's finger to a sensor sheet and it measures. It is a perspective view which shows the mode in the midst of doing. It is a longitudinal section of a sensor sheet of a first embodiment of the present invention. It is a block diagram which shows the control structure of the CRT measuring device of 1st embodiment of this invention. It is a flowchart which shows an example of the control flow of measurement by the CRT measuring device of 1st embodiment of this invention.
  • FIG. 8 is a schematic perspective view showing the entire configuration of a modification of the CRT measurement apparatus of the first embodiment of the present invention.
  • FIG. 8 is a schematic perspective view showing the entire configuration of a modification of the CRT measurement apparatus of the first embodiment of the present invention.
  • FIG. 8 is a schematic perspective view showing the entire configuration of a modification of the CRT measurement apparatus of the first embodiment of the present invention.
  • It is a typical longitudinal section showing composition of a sensor sheet of a second embodiment of the present invention.
  • FIG. 1 It is a schematic diagram which shows the structure of the CRT measurement apparatus of 3rd embodiment of this invention, Comprising: (a) is a front view, (b) is a side view. It is a block diagram which shows the control structure of the CRT measuring device of 3rd embodiment of this invention. It is a schematic diagram which shows the structure of the principal part of the CRT measurement apparatus of 4th embodiment of this invention, Comprising: (a) is a perspective view which shows a mode in the middle of pressing a test subject's finger and measuring, (b ) Is a front view. It is a figure which shows the average value of CRT ratio in each compression conditions. It is a figure explaining the concept of an ischemia period and a stable period. It is a figure explaining frequency distribution of ischemia time. It is a figure which shows the result of having evaluated the fluctuation
  • a CRT measurement apparatus 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4.
  • the configuration of the CRT measurement apparatus 1 will be described with reference to FIGS. 1 and 2.
  • the CRT measurement apparatus 1 according to this embodiment is configured as a wearable measurement apparatus as shown in FIGS. 1 (a) and 1 (b).
  • the CRT measuring device 1 is a sensor sheet 1a attached to the belly of the measurer's finger 200a (also referred to as the thumb of the right hand in the example shown in FIGS. 1 (a) and 1 (b) and hereinafter "thumb").
  • a display 1b similar to a wristwatch worn on the wrist 201 of the measurer.
  • the sensor sheet 1a and the display device 1b each include a communication device (not shown) and perform bidirectional communication by wireless communication or wired communication.
  • the sensor sheet 1a and the display device 1b communicate by wireless communication.
  • the measurer pinches and squeezes the finger tip (test portion) 100 of the subject with the sensor sheet 1a attached to the thumb 200a and the index finger 200b, and guides the compression to the display device 1b. Display of.
  • the display device 1 b includes a belt 1 c wound around the wrist 201 and a display device main body 1 d attached to the belt 1 c.
  • the display device body 1d includes a display 4 facing the outer peripheral side of the belt 1c at the time of mounting, a control device 10 (see FIG. 3) to be described later (see FIG. 3), and a power supply (not shown) for the display 4 and the control device 10. And a power switch (not shown) and the communication device.
  • the power switch When the power switch is turned on, the display 4 starts displaying, and the control device 10 and the communicator start operating.
  • the communication device starts operation, it transmits information (on information) to the effect that the power switch is turned on to the communication device of the sensor sheet 1a, and the sensor sheet 1a starts operation.
  • the communication device of the sensor sheet 1a is supplied with minimum power so that it can receive ON information from the communication device of the display device main unit 1d even when the power switch is off.
  • the power source for example, a battery, a solar cell, and a feeding and receiving unit from a feeding line can be considered. Batteries are preferred for portability and stability.
  • the display 4 displays the periodically detected pressure P, which is updated each time the detection is performed, and displays the measurement result (CRT) after the measurement of the CRT.
  • CRT measurement result
  • the measurer compresses the subject's fingertip 100 so as to satisfy the standard compression conditions.
  • the display on the display 4 guides the measurer's compression operation to satisfy the standard compression condition.
  • the standard compression condition and the guidance method for satisfying the standard compression condition will be described in detail later.
  • the sensor sheet 1a as shown in FIG. 1 (b) and FIG. 2, has a rectangular sheet-like (thin plate-like) sandwiching piece 1e, a sensor portion 1g, an adhesive gel layer 1f (first attachment means), and a sensor portion 1g. And a communicator (the power supply and the communicator are not shown).
  • a communicator the power supply and the communicator are not shown.
  • the thickness dimensions (upper and lower dimensions in FIG. 2) of the sensor unit 1 g and the adhesive gel layer 1 f are shown thicker than in actuality.
  • the power source similar to the power source of the display device 1b, for example, a battery, a solar cell, and a feeding unit for feeding from a feeder can be considered, and a battery is preferable in terms of portability and stability.
  • the sensor unit 1g is provided on the front side of the lower surface of the sandwiching piece 1e.
  • the adhesive gel layer 1 f covers the upper surface of the sandwiching piece 1 e leaving a partial region on the front side.
  • the measurer can attach the sensor sheet 1a to the finger 200a, for example, by pressing the finger 200a against the adhesive gel layer 1f to cause the adhesive gel layer 1f to adhere to the finger 200a.
  • the adhesive gel layer 1f may cover the entire top surface of the sandwiching piece 1e.
  • a double-sided tape first attachment means
  • the sensor sheet 1a may be provided on a band (first attachment means) that is wound around the measurer's finger 200a.
  • the sensor unit 1 g includes a color sensor (blood color sensor) 11 as a first sensor, a pressure sensor 12 as a second sensor, and an indenter 15.
  • the color sensor 11 and the pressure sensor 12 each have a base, but only the detection end is shown, and the base is not shown.
  • the material of the sandwiching piece 1e and the base is adapted to fit the shape of the measurer's finger 200a and the subject's finger 100 so that some deformation is allowed when the test subject's finger 100 is narrowed. Flexible (flexible) materials may be used.
  • the pressure sensor 12 detects the pressure P applied to the nail 101 of the finger tip 100 of the subject at the time of measurement.
  • the upper surface of the pressure sensor 12 is fixed to the lower surface of the sandwiching piece 1e, and the indenter 15 is fixed to the lower surface.
  • the pressure sensor 12 for detecting the pressure applied to the subject 100 it is possible to use a pressure sensor for detecting the pressure applied to the subject 100 (unit: newton) as the second sensor. .
  • all those using the pressure sensor 12 can be substituted by a compression force sensor.
  • the indenter 15 is provided so as to protrude from the pressure sensor 12 in order to press the claw 101 effectively, and transmits the pressure P to the pressure sensor 12. Further, the indenter 15 is in the form of a box having an open portion 15a on the lower surface (that is, the surface facing the claw 101 at the time of measurement), and the color sensor 11 is sunk into the open portion 15a (inward box shape). There is.
  • the indenter 15 covers the periphery of the color sensor 11 and also functions as a light blocking member that limits the amount of light incident on the color sensor 11. By limiting the amount of light incident on the color sensor 11, the color sensor 11 can detect the color of the nail 11 clearly.
  • the configuration of the control device 10 will be described with reference to FIG.
  • the control device 10 is a normal computer (electronic control device), and internally includes a known CPU, ROM, RAM, I / O, and a bus line for connecting these components.
  • a program for performing measurement of the CRT is written in the ROM, and the CPU or the like executes predetermined arithmetic processing in accordance with this program.
  • the control device 10 includes a display control unit 10a and a measurement unit 10b.
  • the display control unit 10 a controls the operation (display) of the display 4.
  • the display control unit 10a has a notification function and a guidance function.
  • the notification function is a function to display the CRT measured by the measurement unit 10 b and the compression pressure P detected by the pressure sensor 12 on the display 4. Therefore, the display control unit 10 a constitutes the “notification unit for notifying capillary refilling time” of the present invention together with the display 4.
  • the guidance function is the pressing operation of the measurer by the display of the display 4 so that the pressure satisfies the standard compression condition when the finger of the subject 100 is pressed by the measurer's manual operation (hereinafter also referred to as the “compression operation”).
  • the display control unit 10a together with the display 4, constitutes a "guide for guiding manual operation to satisfy the standard compression condition" of the present invention.
  • the standard compression condition means that the compression pressure P detected by the pressure sensor 12 is maintained within a predetermined range R for a predetermined time T (for example, 3 seconds or more).
  • the predetermined range R is a pressure range necessary for whitening the nail bed capillary bed, and is set in an allowance ⁇ P on the plus side and the minus side with respect to the reference pressure P0 suitable for stopping the blood flow. [R: (P0 ⁇ P) to (P0 + ⁇ P), ⁇ P ⁇ 0 (zero)].
  • the pressure P0 is set based on diastolic blood pressure, and is 17 [kPa], for example.
  • the setting range R is indicated by a pressure range necessary for whitening the nail bed capillary bed, 3N or more and 7N or less is appropriate.
  • N is a unit Newton of compression force.
  • compression pressure or compression force, time compression force conditions are suitably 3N or more and 7N or less, and the time maintained within a predetermined range R for a predetermined time is suitably 3 seconds or more Will be described using experimental examples.
  • the following experiment on the CRT characteristic investigation was conducted using the basic experiment apparatus.
  • the basic experiment device has a motorized nail bed compression mechanism, a compression force sensor (second sensor), a nail bed color sensor (color sensor; first sensor), and the compression force from the start of compression to after release
  • the nail bed color was acquired as time series data.
  • the compression force is changed to four levels of 1, 3, 5, 7 [N]
  • the compression time is changed to six stages of 1, 2, 3, 4, 5, 6 [seconds]
  • the CRT measurement was repeated five times under the same conditions.
  • the CRT has a 100% nail bed color at the time of compression and a 0% nail bed color at the time of release, it calculates the time for the color change immediately after release to change from 90% to 10%. Also, the CRT value is large among individuals even in healthy people. Therefore, the median value of the measurement was set as the CRT representative value of the subject, and the magnitude (ratio) of the fluctuation of the CRT value with respect to the CRT representative value when the compression force and the compression time were changed was calculated as the CRT ratio. The average values of CRT ratios for all subjects are shown in FIG.
  • the CRT ratio is increased from 1.27 to 1.49 only when the compression force is 1N, while the CRT ratio is close to almost 1.0, while the compression force is 3N or more.
  • Two-way analysis of variance showed statistically significant changes in compression force.
  • the nail bed color changed with time, and there were two stages of rapid color change in the first half and gradual color change in the second half. It became clear from the measurement that it is composed of
  • the rapid color change in the first half is set as the ischemic period
  • the gradual color change in the second half is set as the stable period.
  • a conceptual diagram is shown in FIG.
  • the boundary between the ischemic period and the stable period can be calculated as an inflection point in the time series change of nail bed color.
  • the inflection point is calculated as the minimum value of the second derivative of the nail bed color.
  • FIG. 15 is a graph showing a frequency distribution (histogram) plotted by calculating the ischemia time from the nail bed color change from 3 to 7 N and the compression time from 1 to 6 seconds. From this result, it was found that the ischemia time was about 1.5 seconds or less regardless of the compression force and compression time. However, depending on the subject, there were cases where the duration of ischemia was long, up to 2.708 seconds. It is thought that release of nail bed pressure during the stable period is also physiologically appropriate, not during the ischemic period in which the ischemia rapidly progresses.
  • a compression time of 3 seconds or more is preferable as the time for the ischemia to be sufficiently completed.
  • the compression force is 3N or more and 7N or less, and the compression time is suitably 3 seconds or more.
  • the additional data obtained by this apparatus are for examining "standard compression conditions", and what is essentially obtained by manual operation There is no difference.
  • the display control unit 10a determines that the compression pressure P detected by the pressure sensor 12 approaches the predetermined range R, the compression pressure P is within the predetermined range R, and the compression pressure P is within the predetermined range R.
  • the display 4 displays on the display 4 a visual announcement that each of the predetermined periods of time has reached the predetermined time T and it is time to finish the compression by the measurer.
  • the display of the compression pressure P is switched from the lighting display to the blinking display when the compression pressure P approaches the predetermined range from the predetermined range R, and the blinking interval is shortened as the compression pressure P approaches the predetermined range R. It announces that the pressure P is approaching the predetermined range R. Then, when the compression pressure P is within the predetermined range R, the compression pressure P enters the predetermined range R by reversing the compression pressure P in black and white (the compression pressure P is displayed in white characters) and lighting up. Announce that you are (first announcement).
  • the compression pressure P is the timing at which the compression is ended by switching from the lighting display to the blinking display with the black and white reverse display. I announce that. In other words, the end of the compression is requested (second announcement).
  • the measurement unit 10b measures the CRT after being announced by the display of the display 4 that it is time to release the compression (compression release timing). Specifically, the normal condition in which the subject's nail 101 has a reddish color (reddish) based on the detection result of the color sensor 11 after the measurement person stops pressing and the compression pressure P becomes equal to or less than the release pressure Pr. The time until it is judged that it has returned to is measured as a return time t, and is output to the display control unit 10a.
  • the pressure is released so that the distance between the color sensor 11 and the nail 101 does not exceed the distance at which the color of the nail 101 can be detected by the color sensor 11 (hereinafter also referred to as "detectable distance").
  • detecttable distance For example, it can be considered to be performed by lightly separating the measurer's index finger 200 b from the belly of the subject's finger tip 100.
  • a sensor member 1a may be a biasing member that biases the thumb 200a and the forefinger 200b of the measurer in the direction approaching each other, or a regulating member that regulates the mutual distance not to be longer than the detectable distance. It may be provided integrally with or separately from Thereby, the distance between the color sensor 11 attached to the measurer's thumb 200 a and the nail 101 of the subject's finger 100 supported by the measurer's forefinger 200 b is greater than the detectable distance after releasing the compression. Can be suppressed.
  • the adhesive material attached to the sensor sheet 1a or the sensor unit 1g may be used as a regulating member to maintain the contact between the sensor unit 1g and the claw 101 even after the pressure is released.
  • the display device may have a notification function of notifying an error or prompting another measurement.
  • the threshold value for determining whether or not the blood color (redness) of the nail 101 is in the normal state may be a preset constant value.
  • the color of the subject's finger tip 100 before compression by the measurer may be detected by the color sensor 11, and the threshold value may be set for each measurement based on the detection result.
  • step S10 it is determined whether the compression pressure P detected by the pressure sensor 12 is within the predetermined range R. If the compression pressure P is out of the predetermined range R, the process returns to step S10. If the compression pressure P is within the predetermined range R, counting of the period (compression time) in which the compression pressure P falls within the predetermined range R is started in step S20 and the compression pressure P enters the predetermined range R in step S30. An announcement to that effect is made by making the display of the compression pressure P a black and white reversal display and a lighting display.
  • step S40 it is determined whether the compression pressure P is within the predetermined range R again. If the compression pressure P is out of the predetermined range R, the process proceeds to step S130, the compression time is reset, and the process returns. If the compression pressure P is within the predetermined range R, the process proceeds to step S50, and it is determined whether the compression time has reached the predetermined time T or not. If the compression time has not reached the predetermined time T, the process returns to step S30. If the compression time has reached the predetermined time T, it is determined that the standard compression condition is satisfied, the process proceeds to step S60, and the measurer performs compression operation by switching the black and white reversal display of the compression pressure P from lighting display to blinking display. Make an announcement to request termination.
  • step S70 it is determined whether or not the pressure operation P by the measurer has ended, depending on whether the pressure P is lower than the opening pressure Pr. If the compression pressure P is higher than the release pressure Pr, it is determined that the compression operation has not ended, the process returns to step S60, and an announcement for requesting the end of the compression operation is continuously performed. If the compression pressure P becomes equal to or less than the release pressure Pr, the compression operation is considered to be complete, and the process proceeds to step S80 where measurement of the CRT is started. That is, the clocking of the recovery time t until the color of the nail 101 recovers is started.
  • step S60 After the announcement to the effect that it is compression end timing is started by step S60, if the compression pressure P does not become below open pressure Pr, it will loop step S60 and S70. If this loop continues for more than a certain amount of time, the compression time exceeds the predetermined time T more than permitted, and it is forced to go out of this flow and be measured on the display 4 as it is out of the standard compression condition. An error is displayed.
  • step S80 after counting of the recovery time t until color return is started, the process proceeds to step S90, and according to the detection result of the color sensor 11, it is determined whether the blood color of the subject's nail 101 has returned to normal color. Is determined. If it is determined that the color of the nail 101 has not returned, the process returns to step S90. If it is determined that the color of the nail 101 has been recovered, the process proceeds to step S100, and the clocking of the recovery time t is completed, the process proceeds to step 110, the recovery time t (CRT) is displayed on the display 4, and the measurement is completed. Return. After returning, if the compression pressure P detected by the pressure sensor 12 exceeds the predetermined pressure set to a value lower than the predetermined range R in step S10, it is assumed that a new measurement is started, The display is erased.
  • FIG. 16 shows a comparison of the measurement of the CRT) and the conventional example (the measurement of the CRT without preparing to satisfy the standard compression condition in advance).
  • the comparison result in FIG. 16 is obtained by evaluating the amount of fluctuation of the measured value between the operators by the standard deviation among six subjects. From this FIG. 16, according to the present invention, the fluctuation between the measuring persons (operators) of the compression force becomes 1 ⁇ 5 or less and the measuring person (operators) fluctuation of the compression time becomes 1 ⁇ 8 or less as compared with the conventional example. Furthermore, it has been found that the measurer (operator) fluctuation of the CRT value is improved by about 10%.
  • this CRT is over a certain period of time (for example, 2 seconds to 3 seconds)
  • the subject is diagnosed as in a state requiring emergency treatment, such as dehydration, hypothermia, shock, etc.
  • the reliability of such a diagnosis can be improved since the CRT can be measured under standard compression conditions.
  • the finger tip 100 of the subject is compressed by the manual operation of the measurer, and the CRT measurement device 1 guides the manual operation of the measurer so that the standard compression condition is satisfied, the standard compression condition is established. It eliminates the need for complicated compression mechanisms. Therefore, the manufacturing cost of the CRT measurement apparatus 1 can be reduced and the size of the apparatus can be reduced. Moreover, in the said Example, the finger tip 100 (nail 101) was pressed as a test part which is a part of test subject's body.
  • the measurer can press the test part necessary for the CRT measurement simply by pressing the sensor sheet 1 a attached to his / her finger 200 a to the test part, the test part is limited to the fingertip 100 CRT measurements can be performed without (e.g., with the chest as the test site).
  • the sensor sheet 1a including the color sensor 11 and the pressure sensor 12 is attached to the measurer's finger 200a, so that the sensory ability of the measurer's finger can be expanded (the sense expansion of the finger can be realized). That is, the measurer can sense the compression pressure P in a sensory manner substantially the same as direct compression of the subject's finger 100 with their fingers 200a and 200b. Therefore, the measurer can intuitively easily adjust the compression pressure P.
  • the pressure sensor 12 is provided with the indenter 15 for pressing the fingertip 100 on the surface facing the subject's fingertip 100 when performing compression (measurement). The pressure 100 can be effectively compressed, and the pressure P at this time can be transmitted to the pressure sensor 12 and detected accurately.
  • the color sensor 11 Since the color sensor 11 is embedded in the open portion 15a of the indenter 15 provided in the pressure sensor 12, the color sensor 11 can perform the measurement without inhibiting the pressure of the finger tip 100 of the subject by the indenter 15.
  • the pressure sensor 12, the indenter 15, and the color sensor 11 can be stacked in an efficient and efficient arrangement.
  • the sensor sheet 1a may be replaced with the sensor sheet 1a 'shown in FIG.
  • the sensor sheet 1a ' includes a sandwiching piece 1e, a sensor unit 1g', and an adhesive gel layer 1f.
  • the thickness dimensions (upper and lower dimensions in FIG. 5) of the sensor portion 1g ′ and the adhesive gel layer 1f are shown thicker than in actuality.
  • the sensor unit 1g ' is provided on the lower surface of the sandwiching piece 1e near the front.
  • the sensor unit 1g ′ includes a color sensor 11, a pressure sensor 12, an indenter 15 ′, a cylinder 16 for light shielding, a power supply (not shown) for the sensors 11 and 12, and a display device 1b (FIG. 1).
  • (A) Refer to (a) and the communication machine (illustration abbreviation) which performs two-way communication.
  • One surface of the pressure sensor 12 is fixed to one surface of the sandwiching piece 1e, and an indenter 15 'is fixed to the other surface.
  • the indenter 15 ′ is for effectively compressing the claw 101 and transmitting the pressure P to the pressure sensor 12, but the shape is different from that of the indenter 15.
  • the indenter 15 ' is a short columnar body having a hemispherical tip, and the proximal end (upper end) is attached to the pressure sensor 12 in a posture where the hemispherical tip is directed downward. There is.
  • the color sensor 11 is fixed to the sandwiching piece 1 e and provided adjacent to the rear of the pressure sensor 12.
  • the cylinder 16 is a light shielding member provided to limit the amount of light incident on the color sensor 11 so that the color sensor 11 can detect the color of the nail 11 clearly.
  • the cylindrical body 16 is a cylindrical thing which the upper and lower sides opened, and is fixed to the clamping piece 1e in the attitude
  • sensors 11, 12 and an indenter 15 ' are disposed inside the cylinder 16.
  • the sensors 11 and 12 are inserted into the inside of the cylinder 16, and the tip of the indenter 15 ′ protrudes downward from the cylinder 16 so as to press the claw 101.
  • the cylinder 16 may be omitted depending on the specification of the color sensor 11.
  • the other configuration is the same as that of the above-described embodiment, and hence the description thereof is omitted.
  • the CRT measurement device 1A is configured to include a sensor sheet 1a, a display device body 1d, and a finger sack 1h (first attachment means).
  • the sensor sheet 1a and the display device body 1d are fixed to the outer surfaces of the finger cots 1h opposite to each other.
  • the measurer wears the finger sack 1h on the finger 200a such that the sensor sheet 1a is positioned on the ventral side of the finger 200a and the display device body 1d is positioned on the back of the finger 200a.
  • the other configuration is the same as that of the above-described embodiment, and hence the description thereof is omitted.
  • the CRT measurement device 1B is configured to include a sensor sheet 1a, a display device body 1d, and a glove 1i (first mounting means).
  • the sensor sheet 1a and the display device body 1d are fixed to the outer surfaces of the glove 1i on the opposite sides.
  • the measurer holds the glove 1i in such a manner that the sensor sheet 1a is on the palm side and the display main body 1d is on the back side of the hand.
  • the other configuration is the same as that of the above-described embodiment, and hence the description thereof is omitted.
  • the CRT measurement apparatus 1C shown in FIG. 8 is configured such that the display device main body 1d is disposed on the sensor sheet 1a in the embodiment.
  • the CRT measurement apparatus 1C includes a sandwiching piece 1e ', a sensor unit 1g (see FIG. 2), an adhesive gel layer 1f, and a display 4.
  • the sensor portion 1g is fixed to the surface (lower surface) on the opposite side to the adhesive gel layer 1f with respect to the sandwiching piece 1e ′ although it is hidden by the sandwiching piece 1e ′.
  • An area in front of the adhesive gel layer 1 f is set wider in the sandwiching piece 1 e ′ than in the sandwiching piece 1 e of the embodiment, and in this area, the display main body 1 d faces the display 4 upward.
  • the control device 10 (see FIG. 3), a power supply (not shown) for the display 4 and the control device 10, and a power switch (not shown) are incorporated in the sandwiching piece 1e '.
  • the other configuration is the same as that of the above-described embodiment, and hence the description thereof is omitted.
  • a sensor unit 1g ′ (see FIG. 5) may be used instead of the sensor unit 1g.
  • a CRT measurement apparatus 1D according to a second embodiment of the present invention will be described with reference to FIG.
  • symbol is attached
  • the CRT measurement apparatus 1D includes a pair of sandwiching pieces 1e-1 and 1e-2 attached to the subject's finger 100, a sensor unit 1g provided on the sandwiching piece 1e-1, and a display attached to the wrist of the measurer And a device 1b (see FIG. 1 (a)).
  • the sandwiching pieces 1e-1 and 1e-2 each have a rectangular sheet shape (thin plate shape), and the front sides of the opposing surfaces facing each other are covered with an adhesive gel layer 1f (second attachment means). Further, a sensor portion 1g is provided on the opposite side of the sandwiching piece 1e-1 behind the adhesive gel layer 1f.
  • the clamping piece 1e-1 further includes a power supply for the sensor unit 1g and a communication device capable of performing bidirectional communication with the display device 1b (the power supply and the communication device are not shown).
  • the detection result of the sensor unit 1g is transmitted to the control device 100 (see FIG. 3) of the display device 1b via the communication device.
  • the control device 100 see FIG. 3
  • the power of the display device 1b is turned on, a signal to that effect is output to the sensor unit 1g via the communication device, and the sensor unit 1g starts detection.
  • the material of the sandwiching pieces 1e-1 and 1e-2 fits the shape of the measurer's finger 200a and the subject's fingertip 100 so that slight deformation is permitted when the subject's fingertip 100 is narrowed. Yes, flexible materials may be used.
  • the other configuration is the same as that of the above-described embodiment, and hence the description thereof is omitted.
  • the adhesive gel layer 1f is adhered to the back side of the subject's finger so that the pinching piece 1e-1 is positioned immediately above the nail 101 of the subject with the sensor unit 1g.
  • the adhesive gel layer 1f is adhered to the ventral side of the subject's finger so that the pinching piece 1e-2 is positioned just below the belly of the fingertip 100 at the rear end side. That is, the holding pieces 1e-1 and 1e-2 are attached to the finger of the subject such that the sensor unit 1g and the rear end side of the holding piece 1e-2 face each other with the fingertip 100 interposed therebetween. This results in the state shown in FIG.
  • the measurer applies a force between the thumb 200a and the index finger 200b so that the rear ends of the sandwiching pieces 1e-1 and 1e-2 approach each other as indicated by the black arrows.
  • the finger tip 10 of the subject is pressed against the rear end side of the sandwiching pieces 1e-1 and 1e-2, and the CRT can be measured.
  • the holding piece 1e-1 is kept attached to the finger tip 10 of the subject by the adhesion of the adhesive gel layer 1f, so that the sensor unit 1g located immediately above the nail 101 Measurement can be performed.
  • a sensor unit 1g ' (see FIG. 5) may be used instead of the sensor unit 1g.
  • the lower holding piece 1e-2 may be omitted. In this case, the measurer holds and squeezes the finger tip 10 of the subject with the holding piece 1e-1 and the index finger 200b.
  • the clamping pieces 1e-1 and 1e-2 are attached to the fingertip 100 (nail 101) as a test portion which is a part of the subject's body, and the clamping pieces 1e-1 and 1e-2 are used.
  • the test part is not limited to the finger tip 100.
  • the chest of the subject may be used as the test part.
  • a sensor sheet (corresponding to the sandwiching piece 1e-1) having the same configuration as the sandwiching piece 1e-1 is attached to the chest of the subject and attached, and the measurer applies the sensor sheet to the chest of the subject You may make it press.
  • omitted the thing corresponding to clamping piece 1e-2 can be abbreviate
  • the configuration of the CRT measurement apparatus 1E will be described with reference to FIGS. 10 (a) and 10 (b).
  • the CRT measurement apparatus 1E includes a clip piece 2 (first clip piece), a clip piece 3 (second clip piece), a display 4 ', a control device 10, various sensors 11 to 14, and a display 4' of these. , A power supply (not shown) for the control device 10 and various sensors 11 to 14 and a power switch (not shown).
  • the control device 10 is incorporated in the CRT measurement device 1E, and is incorporated in the clip piece 2 in the present embodiment. When the power switch is turned on, the display 4 'starts displaying and the control device 10 starts operating.
  • the clip pieces 2 and 3 are rotatably connected, and pinch and squeeze the finger tip 100 of the subject between the sandwiching surfaces 2a and 3a facing each other by a manual operation (compression operation) of the measurer.
  • the clip piece 2 includes a substantially rectangular main body portion 2b in a front view, and a pair of leg portions 2c hanging from both widthwise edge portions slightly behind the center of the main body portion 2b in the front-rear direction.
  • the clip piece 3 includes a substantially rectangular main body portion 3b in a front view, and a pair of leg portions 3c hanging from both widthwise edge portions slightly behind the center of the main body portion 3b in the front-rear direction.
  • the clip pieces 2 and 3 are disposed such that the leg 2c and the leg 3c face each other.
  • the clip piece 2 is slightly narrower than the clip piece 3, and each leg 2c is disposed close to the inner side (the width direction center line CL side) of each leg 3c.
  • the legs 2c and 3c are respectively inserted into the shaft member 2d extending in the width direction, whereby the clip pieces 2 and 3 are rotatably connected as described above around the shaft member 2d.
  • the clamping surfaces 2a and 3a are the surfaces of the clip pieces 2 and 3 facing each other, particularly the surface on which the finger tip 100 is clamped with the leg portions 2c and 3c as a boundary.
  • the 3a side is the front side, and the opposite side is the rear side.
  • the clip pieces 2 and 3 are provided with an elastic member (for example, a spring or the like) (not shown) between them, and the front side (nipping side 2a, 3a side) is biased in the closing direction.
  • the biasing force of the elastic member is set to press the fingertip with a lower pressure than the pressure range (predetermined range R) required to whiten the nail bed capillary bed.
  • the biasing force causes the finger tip 100 to have a pressure Pa (hereinafter referred to as “biasing pressure Pa”) such that the clip pieces 2 and 3 are not separated from the finger tip 100 even after the measurement person's pressing operation is finished.
  • the strength is set to lightly press. As a result, it is possible to prevent the clip pieces 2 and 3 from separating the finger tip 100, and to measure the finger tip 100 by the various sensors 11 to 14 attached to the clip pieces 2 and 3.
  • the CRT measurement apparatus 1E assumes use in a posture in which the clip piece 2 is directed upward and is directed downward to the clip piece 3 (hereinafter referred to as "measurement posture"). Since it is easy for the measurer to see the eye, “Push” indicates that the measurer places the finger on the front side of the outer surface 2 e which is the upper surface of the clip piece 2 in such measurement posture. "" Is given.
  • the clip pieces 2 and 3 may use a flexible material so as to allow slight deformation when the test subject's fingertip 100 is narrowed, and to fit in the test subject's fingertip 100 shape.
  • each of the sensors 11 to 14 is a color sensor 11, a pressure sensor 12, an SpO 2 sensor 13 (fourth sensor) for detecting arterial oxygen saturation (hereinafter referred to as “SpO 2 ”), and a fingertip 100.
  • the temperature sensor (third sensor) 14 measures the temperature BT.
  • SpO 2 is not directly related to the measurement of CRT, it is a parameter useful for diagnosing the condition of a subject like CRT, so SpO 2 is measured in this embodiment. .
  • the CRT measurement apparatus 1E assumes that the clip piece 2 is directed to the nail 101 and the clip piece 3 is directed to the belly of the finger tip 100 and the finger tip 100 is mounted.
  • the color sensor 11 for detecting the color of the nail 101 is preferably in close contact with the nail 101. Therefore, the color sensor 11 is provided so as to protrude toward the clip piece 3 on the sandwiching surface 2a of the clip piece 2 so as to easily contact the nail 101.
  • the pressure sensor 12 is embedded on the side of the sandwiching surface 2 a of the clip piece 2, and is superposed on the upper surface of the color sensor 11 (the surface on the opposite side to the contact surface with the claw 101).
  • the color sensor 11 is attached to the holding surface 2 a of the clip piece 2 via the pressure sensor 12.
  • the SpO 2 sensor 13 and the temperature sensor 14 are disposed on the front side of the sandwiching surface 3 a of the clip piece 3 so as to easily face the belly of the fingertip 100.
  • the SpO 2 sensor 13 and the temperature sensor 14 are disposed flush or substantially flush with the sandwiching surfaces 2 a and 3 a of the clip pieces 2 and 3.
  • the sensors 11 to 14 are not limited to the arrangement shown in FIG. 10B, and for example, the color sensor 11 and the pressure sensor 12 may be flush with the sandwiching surface 2a. Alternatively, it may be provided on the clip piece 2 so as to protrude toward the clip piece 3 from the holding surface 2 a.
  • the display 4 ' is provided on the rear side of the outer side surface 2e of the clip piece 2 that faces the upper surface in the measurement posture so that the measurement person can easily view.
  • the display 4 ′ differs from the display 4 of the above embodiments in that it displays the temperature BT of the fingertip 100. Specifically, on the display 4 ', the pressure P detected periodically and the temperature BT of the finger tip 100 are updated and displayed each time detection, and after measurement of the CRT, measurement results (CRT) Is displayed.
  • CRT measurement results
  • the measurer compresses the subject's fingertip 100 so as to satisfy the standard compression condition while monitoring the compression pressure P displayed on the display 4 ', as in the above-described embodiments.
  • the configuration of the control device 10 ' will be described with reference to FIG.
  • the control device 10 ' includes a display control unit 10a and a measurement unit 10b'.
  • the measurement unit 10b ' is different from the measurement unit 10b of the embodiment in that the measurement unit 10b' includes a temperature compensation unit 10c, and the other points are the same as the measurement unit 10b.
  • the temperature compensation unit 10c compensates for the return time t measured by the function of the measurement unit 10b 'to be longer as the temperature BT of the finger tip 100 of the subject detected by the temperature sensor 14 decreases, and the display control unit as a CRT Output to 10a.
  • the other configuration is the same as that of the control device 10 of the embodiment, and therefore the description thereof is omitted.
  • the control device 10 ' determines that the measurer has stopped pressing, as the control pressure P becomes equal to or less than the release pressure Pr, as in the control device 10.
  • the measurement unit 10b includes the temperature compensation unit 10c, and the temperature compensation unit 10c compensates for the temperature of the CRT based on the temperature of the subject detected by the temperature sensor 14. Can diagnose the condition.
  • the clip pieces 2 and 3 are biased in the closing direction, the clamping of the fingertip 100 by the clip pieces 2 and 3 is maintained even if the measurer completes the pressing operation. Therefore, after completion of the compression operation, the various sensors 1 to 4 in proximity to the finger tip 100 can normally perform detection even if the measurer does not apply force to the CRT device 1, and thus the CRT measurement can be normally performed. Can.
  • a CRT measurement apparatus 1F according to a fourth embodiment of the present invention will be described with reference to FIGS. 12 (a) and 12 (b).
  • the CRT measurement apparatus 1F includes a sensor sheet 1j, a holder 1k for holding the sensor sheet 1j in a slidable manner, and a mounting plate projecting forward from the holder 1k and on which the finger tip 100 of the measuring person is placed 1 m and a display device 1 b (see FIG. 1A) mounted on the wrist 201 of the measurer.
  • the sensor sheet 1j is provided with a sensor portion 1g (see FIG. 2) on the surface (lower surface) opposite to a base portion 1k-1, which will be described later, of the holder 1k. Further, the sensor sheet 1j is attached to the holder 1k in a horizontal posture, and sliding portions 1j-1 respectively pointing in the width direction are provided in a projecting manner at both ends in the width direction. In place of the sensor unit 1g, a sensor unit 1g '(see FIG. 5) may be provided on the sensor sheet 1j.
  • the holding body 1k includes a base portion 1k-1 extending in the width direction, and pillar portions 1k-2 extending upward from the both widthwise edges of the upper surface of the base portion 1k-1.
  • a recess 1k-3 is formed which passes from the connection with the base 1k-1 to the upper surface.
  • the mounting plate 1m is attached to the front of the base 1k-1 between the two pillars 1k-2. Further, the upper surface and the lower surface of the placement plate 1m are flush with or substantially flush with the upper surface and the lower surface of the base portion 1k-1. Since the other configuration is the same as that of the first embodiment, the description will be omitted.
  • the display device main body 1d may be integrally provided on the holder 1k. Also, even if a flexible material is used as the material of the sensor sheet 1 j so as to allow deformation at the time of narrowing of the subject's fingertip 100 or to fit the shape of the measurer's finger 200 a or the subject's fingertip 100. Good.
  • guidance is performed by the visual method so that standard compression conditions are satisfied by changing the display of the display 4, but the mode of the guidance is not limited at all.
  • guidance may be performed by an auditory method (eg, buzzer or voice) or tactile method (eg, vibration), visual guidance, auditory guidance, and tactile guidance. Two or more of them may be combined.
  • an auditory method for example, the guidance unit of the present invention is configured by the audio output device and the control unit that controls the audio output device
  • a tactile method for example, a vibration device and vibration
  • the guidance unit of the present invention is configured by the control unit that controls the device.
  • a wireless transmitter may be provided in the CRT measurement apparatus 1, 1A to 1F, and the measured CRT may be transmitted to the outside such as a first aid center by this wireless transmitter.
  • personal identification information for example, an image sensor (fingerprint detection sensor) is provided at a position facing the belly of the finger tip 100 such as the pinching surface 3a of the clip piece 3 of the CRT measurement device 1C. It is conceivable to detect a fingerprint as According to such a configuration, CRT measurement and fingerprint detection can be performed simultaneously.
  • the CRT measuring devices 1, 1A to 1F may be provided with a counter for automatically counting the number of times of measurement of the CRT.
  • the number of CRT measurements in principle, corresponds to the number of subjects, which helps to identify the number of victims who will be subjects in case of a large-scale disaster. Also in this case, it is preferable that the CRT measurement apparatus 1 be provided with a wireless transmitter so that the number of measurements can be transmitted to the outside such as an emergency center by this wireless transmitter.
  • the fingertip 100 is placed on the upper surface of the sandwiching piece 1e-2 (see FIG. 9), the clip piece 3 (see FIGS. 10 (a) and 10 (b)) of the CRT measuring device 1E and the base 1k-1 of the holder 1k.
  • a stamp may be provided to face the belly of the.
  • the subject's fingertip 100 is marked at the time of measurement, so that it is easy to distinguish between a victim who has been measured and a victim who has not been measured in a large scale disaster or the like.
  • the one provided with SpO 2 sensor 13 may be omitted SpO 2 sensor 13, the SpO 2 sensor 13 for those not provided SpO 2 sensor 13 You may provide.
  • the temperature sensor 14 and the temperature compensation unit 10c may be provided to perform temperature compensation on the CRT, the temperature sensor 14 and the temperature compensation unit 10c may be omitted.
  • the temperature sensor 14 and the temperature compensation unit 10c may be provided for those in which the temperature compensation unit 10c is not provided.
  • the sensor sheet 1a separately, so as to be in contact with the ball of the fingertip 100 of the subject, SpO 2 sensor 13 Ya the index finger 200b measurers A configuration in which the temperature sensor 14 is mounted can be considered.
  • the color sensor is used as the blood color sensor in each of the above embodiments, the blood color sensor is not limited to the color sensor, and a sensor that detects lightness like a light sensor may be used. When the lightness is detected, if the lightness is equal to or less than the threshold value, it can be determined that the color of the finger tip 100 has returned.
  • a CRT measuring device may be provided with a storage device for storing the measured CRT. Also in this case, it is preferable to store fingerprint information detected by the image sensor as personal identification information together with the CRT.
  • the CRT measuring device displays the CRT on the display 4, but instead of the CRT or in addition to the CRT, the display 4 displays the determination result as to whether or not emergency treatment is necessary or voice It may be made to notify by.
  • the control unit 10 is provided with a determination unit that determines whether or not the emergency treatment is necessary, and the determination unit requires the emergency treatment if the CRT is longer than a predetermined time (for example, 2 seconds to 3 seconds). A configuration to judge can be considered.
  • the finger tip of the subject may be marked with a different stamp depending on the determination of the determination unit.
  • the emergency treatment is necessary for a portion (hereinafter referred to as a "face-to-face portion") facing the belly of the subject's fingertip of the CRT measurement device such as the pinching surface 3a of the clip piece 3
  • One stamp and a second stamp indicating that emergency treatment is not required are provided to be able to appear and disappear from the facing site.
  • the determination unit determines that the emergency treatment is necessary
  • the first stamp is made to project beyond the facing site, and the second stamp is inserted into the facing site, and the determination unit determines that the emergency treatment is unnecessary.
  • the first stamp is configured to be recessed more than the facing portion
  • the second stamp is configured to be protruding than the facing portion.
  • the clip piece 2 which is the first clip piece and the clip piece 3 which is the second clip piece are separately connected rotatably, the first clip piece and the second clip piece are connected.
  • the clip piece may be integrally formed in a U-shape.
  • the first clip piece and the second clip piece are integrally formed of an elastic body so that the distance between the tips is shorter than the thickness of a normal fingertip.
  • the first clip piece and the second clip piece lighten the finger tip 100 because the distance between them is shorter than the thickness of the normal finger tip. It comes to pinch.
  • the first clip piece and the second clip piece are elastic bodies, the measurer can easily press the test finger 100 through the clip pieces.
  • the pressure sensor 12 is provided on the holding piece 1e-1, the clip piece 2 and the sheet sensor 1j as in the color sensor 11.
  • the holding piece 1e-2 It may be provided on the clip piece 3 and the base 1k-1 of the holder 1k.
  • the CRT measuring apparatus has been exemplified by including the color sensor 11 and the pressure sensor 12.
  • the color sensor 11 and the pressure sensor 12 The pressure sensor 12 is not essential.
  • the display device 1b corresponds to the CRT measurement device of the present invention.

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Abstract

L'invention concerne un dispositif de mesure de temps de remplissage capillaire (TRC) au moyen duquel un TRC peut être mesuré dans des conditions constantes même par une opération manuelle, et qui permet de diminuer les coûts de fabrication et la taille du dispositif. Un dispositif de mesure de TRC, destiné à mesurer le temps de remplissage capillaire d'une partie testée (100), une fois que la partie testée (100), qui est une partie du corps d'un sujet, est comprimée par une opération manuelle effectuée par un mesureur; le dispositif de mesure comprend : une unité de guidage qui guide l'opération manuelle de façon à satisfaire une condition de compression standard telle qu'une compression et/ou une force de compression sur la partie testée (100) qui a été détectée maintenue dans une zone prédéterminée pendant une durée prédéterminée; et une unité de mesure qui compte un temps de retour après retrait de la compression et avant que la couleur de la partie testée (100) revienne sur la base de la couleur de la partie testée (100) qui a été détectée, et qui mesure le temps de remplissage capillaire sur la base du temps de retour.
PCT/JP2018/029664 2017-08-08 2018-08-07 Dispositif de mesure de trc WO2019031527A1 (fr)

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JP2021003376A (ja) * 2019-06-26 2021-01-14 国立大学法人千葉大学 測定装置
JP2022191096A (ja) * 2021-06-15 2022-12-27 合同会社画像技術研究所 生体情報計測方法、生体情報計測プログラム、及び生体情報計測装置

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US20070282182A1 (en) * 2006-06-02 2007-12-06 Messerges Joanne L Method and apparatus for measuring capillary refill time and carrying out pulse oximetry with a single device
JP2009148626A (ja) * 2003-10-09 2009-07-09 Nippon Telegr & Teleph Corp <Ntt> 血圧計
JP2012115640A (ja) * 2010-11-09 2012-06-21 Nippon Koden Corp 生体信号測定装置および生体信号測定方法
JP2015130520A (ja) * 2009-03-23 2015-07-16 ソナベーション， インコーポレイテッド 改良圧電識別デバイスおよびその用途
WO2015137151A1 (fr) * 2014-03-11 2015-09-17 公立大学法人横浜市立大学 Outil de support et système d'acquisition d'informations biologiques

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JP2009148626A (ja) * 2003-10-09 2009-07-09 Nippon Telegr & Teleph Corp <Ntt> 血圧計
US20070282182A1 (en) * 2006-06-02 2007-12-06 Messerges Joanne L Method and apparatus for measuring capillary refill time and carrying out pulse oximetry with a single device
JP2015130520A (ja) * 2009-03-23 2015-07-16 ソナベーション， インコーポレイテッド 改良圧電識別デバイスおよびその用途
JP2012115640A (ja) * 2010-11-09 2012-06-21 Nippon Koden Corp 生体信号測定装置および生体信号測定方法
WO2015137151A1 (fr) * 2014-03-11 2015-09-17 公立大学法人横浜市立大学 Outil de support et système d'acquisition d'informations biologiques

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Publication number Priority date Publication date Assignee Title
JP2021003376A (ja) * 2019-06-26 2021-01-14 国立大学法人千葉大学 測定装置
JP7368801B2 (ja) 2019-06-26 2023-10-25 国立大学法人千葉大学 測定装置
JP2022191096A (ja) * 2021-06-15 2022-12-27 合同会社画像技術研究所 生体情報計測方法、生体情報計測プログラム、及び生体情報計測装置
JP7240014B2 (ja) 2021-06-15 2023-03-15 合同会社画像技術研究所 生体情報計測方法、生体情報計測プログラム、及び生体情報計測装置

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