JP2007267871A - Bodily fluid component measuring device and method of controlling the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To securely announce an error to a user if the blood is not normally developed. <P>SOLUTION: The bodily fluid component measuring device is used by attaching a bodily fluid collector which comprises an abutting member to be pressed on the periphery of a puncture region of the skin, a puncture member projecting from an opening of the abutting member to form a wound in the skin to leach the bodily fluid, and a bodily fluid detecting part with a reagent reactive to a prescribed component in the bodily fluid for developing the bodily fluid. The bodily fluid component measuring device also comprises a projecting means to hold the puncture member to make the puncture member project from the opening of the abutting member by applying the energization force to the puncture member, a restricting means for restricting the projection of the puncture member, a releasing means for releasing the restriction only when the abutting member is pressed on the periphery of the puncture region, a detection means for detecting the movement of the puncture member when the restriction is released, a clocking means for clocking the time according to the detection, a measuring means for measuring the prescribed component included in the bodily fluid developed by the bodily fluid detecting part, and an announcing means for announcing an error if the measurement is not started when a prescribed time is clocked. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a puncture to measurement integrated body fluid component measuring apparatus for measuring body fluid components.

  Among devices for measuring body fluid components, for example, body fluid component measuring devices for measuring blood components and the like are known. This body fluid component measuring apparatus is used, for example, for measuring blood sugar levels in diabetic patients. In this body fluid component measuring device, a test paper that is colored according to the amount of glucose in the blood is attached to the device, blood is supplied to the test paper, and the degree of coloration of the test paper is optically measured (measured). A blood glucose measuring device that quantifies the blood glucose level is used.

  In such a blood glucose measurement device, the blood glucose level is obtained by measuring the reaction color of the test paper on which blood is spotted. As a color measurement method, for example, a method is known in which a test paper is irradiated with a light emitting element such as an LED, and the intensity of reflected light from the test paper is detected with a light receiving element such as a light receiving diode.

Such a body fluid component measuring device includes a device integrated with a puncture device and a measuring instrument (see Patent Document 1). In such a device, the device main body until blood is spread on a test paper after puncturing is performed. Cannot be separated from the affected area. If the blood is normally spread on the test paper in response to the puncture, the user can be notified of the timing of separating the apparatus from the affected area using an audio signal or the like based on the change in the state of the test paper. However, when blood does not develop normally, it is necessary to redo the puncture as an error. However, the error cannot be actively notified to the user simply by measuring the state of the test paper.
JP 2001-170031 A

  As described above, in the conventional integrated body fluid component measuring device, when the body fluid is not normally developed, it is impossible to reliably notify the user of the error.

  Therefore, the present invention makes it possible to reliably notify the user of an error when the body fluid does not normally develop.

  In order to solve the above problems, the present invention provides a contact member that is pressed around the puncture site of the skin, a puncture member that protrudes from an opening of the contact member to form a wound on the skin and exudes body fluid, and the body fluid A bodily fluid component measuring device equipped with a bodily fluid collecting tool including a bodily fluid detector having a reagent that reacts with a predetermined component therein and deploying the bodily fluid, the puncture member being held and attached to the puncture member Protruding means for applying an urging force to project from the opening of the abutting member, a limiting means for restricting the puncture member from projecting by the urging force, and the abutting member pressed against the periphery of the puncture site In addition, a release means for releasing the restriction by the restriction means, a detection means for detecting the movement of the puncture member when the restriction is released by the release means and the puncture member moves, and a detection means Yo Triggered by the detection, a timing unit that starts measuring a predetermined time, a measuring unit that measures a predetermined component contained in the bodily fluid developed in the bodily fluid detection unit, and a predetermined time measured by the timing unit And an informing means for informing an error when measurement of the predetermined component by the measuring means is not started.

  According to the present invention, when a body fluid does not develop normally, an error can be reliably notified to the user.

  Embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a block diagram showing an example of the configuration of an integrated body fluid component measuring apparatus corresponding to the present invention. However, the configuration of such a device is given as an example, and does not limit the configuration of the body fluid component measurement device according to the present invention. It should be noted that the configuration of the present apparatus will be described only for elements that are important in explaining the present invention.

  The body fluid component measuring apparatus 100 includes a CPU 101 that controls each component. As a component functionally connected to the CPU 101, the body fluid component measuring apparatus 100 includes a puncture detection unit 102, an external output unit 103, a timer 104, a memory 105, a power source unit 106, a light emitting unit 107, a light receiving unit 108, and an audio output. Part 109, display part 110 and mounting detection part 111.

  First, puncture detection unit 102 is a mechanism for detecting whether puncture with a puncture needle has been performed, and includes at least a photo reflector and a reflector. As a result of the movement of the plunger having the reflector and holding the puncture needle, a detection signal in the photoreflector is output to the CPU 101, and it can be determined whether or not puncture has been performed. The external output unit 103 is a mechanism for transmitting the blood glucose level measurement processing result to an external device such as a host computer.

  The timer 104 is used to time the light emission time or light emission interval during the measurement process, and is used to time the time from detection by the puncture detection unit 102 until blood is spread on the test paper.

  The memory 105 includes RAM, ROM, and the like. The ROM stores light emission conditions at the time of measurement, and stores a program for controlling the operation of the body fluid component measuring apparatus 100 including a processing program corresponding to the present embodiment. The CPU 101 can control the operation of the entire apparatus based on a program stored in the memory 105. The power supply unit 106 is a mechanism that supplies power to the body fluid component measurement device 100, and is configured of, for example, a battery.

  The light emitting unit 107 includes an LED and a drive circuit that drives the LED, and irradiates light onto a test paper on which blood is spotted. The light receiving unit 108 includes a light receiving diode, a drive circuit, an amplifier, an AD converter, and the like. The light receiving unit 108 receives reflected light from the light emitted from the light emitting unit 107 onto the test paper and converts it into a digital signal.

  The signal from the light receiving unit 108 is processed by the CPU 101, and the component contained in the body fluid, more specifically, the sugar contained in the blood, that is, the blood sugar level is measured. In the measurement of the blood glucose level, the reaction color is measured before and after the blood is spotted on the test paper in the chip 112, and the difference between the measurement results is used. Thus, a method for obtaining a blood sugar level is common. This measurement is performed at a constant period, for example, at an interval of 500 msec. During the measurement process, the duty ratio (ON / OFF ratio) of the drive signal for driving the light emitting element 114 can be set to 4:28, for example.

  The voice output unit 109 is used for notifying the user of the measurement result or for notifying the user when a measurement error is detected. The display unit 110 is used for outputting a measurement result or notifying a user when a measurement error is detected.

  The attachment detection unit 111 detects the attachment of the test paper carrying the color reagent and the chip 112 including the puncture needle to the body fluid component measuring apparatus 100. The specimen (for example, blood) is supplied to the chip 112 by puncturing a fingertip or the like with a puncture needle, and a small amount of blood that has flowed out of the punctured site onto the skin. Is absorbed by the test paper via

  Next, the external configuration of the body fluid component measuring apparatus 100 corresponding to the embodiment of the present invention will be described. FIG. 2 shows an example of an external perspective view of the body fluid component measuring apparatus 100 corresponding to the present embodiment.

  In FIG. 2, the body fluid component measuring device 100 is separated into a main body portion 10 and a lid portion 28. The main body 10 includes a housing 12. A plunger 14 connected to the puncture needle is disposed in the housing 12. A reflecting plate 18 is provided on the plunger, and locking claws 17 and 19 are formed at the ends. The reflector 18 may be provided not on the plunger but on the proximal end portion or the mounting portion of the puncture needle. The locking claws 17 and 19 can be engaged with the seesaw-like member 20 to lock the plunger 14 in the charged state of the puncture needle.

  The puncture button 11 is a button for releasing the charged state of the puncture needle and performing puncture.

  The housing 12 is connected to an abutting portion 16 protruding forward of the main body. When the abutting portion 16 is pressed against the skin of the user, the housing 12 is pushed into the main body 10 together with the abutting portion 16. At this time, the housing 12 is urged by the springs 22 and 24 so as to repel in the pushing direction.

  The battery 26 supplies power for operating the device 100. The liquid crystal display 30 displays blood glucose level measurement results and the like. The buttons 32 and 34 are buttons for performing power-on and operation setting of the apparatus 100.

  FIG. 2 shows a case where the puncture needle 42 is in a “charged state” that can be punctured by operating the puncture button 11. In this charged state, the locking claws 17 and 19 are engaged with the seesaw-like member 20. This engagement is released by operating (depressing) the operation button 11, the plunger 14 connected to the puncture needle moves in the direction of the contact portion 16, and the puncture needle protrudes from the opening of the contact portion 16 to perform puncture. Is called.

  FIG. 3 shows a state where the charged state is released in this way and the puncture needle protrudes from the opening of the contact portion 16. In FIG. 3, the puncture needle 42 protrudes from the opening of the contact portion 16. At this time, the engagement between the locking claws 17 and 19 and the seesaw-like member 20 is released.

  Next, with reference to FIG. 4, the state from the bottom face direction of the bodily fluid component measuring apparatus 100 of FIG. 2 is demonstrated. FIG. 4 shows another example of an external perspective view of the body fluid component measuring device 100 corresponding to this embodiment. In FIG. 4, a substrate 36 is installed behind the lid 28, and a photo reflector 38 is disposed on the substrate 36. The photo reflector 38 is disposed so as to be positioned directly above the reflecting plate 18 in a charged state of the puncture needle 42. The photo reflector 38 also includes a light emitting element (for example, an LED) and a light receiving element (for example, a photodiode). When the light emitted from the light emitting element is reflected by the reflecting plate 18, the light receiving element receives the light. Thus, the charged state of the puncture needle 42 can be detected. When the charged state is released by the operation of the puncture button 11 and the puncture is performed, the reflecting plate 18 disposed on the plunger 14 moves in the direction in which the opening of the contact portion 16 is disposed together with the plunger 14, so that the photo It deviates from the position directly below the reflector 38. As a result, the photoreflector 38 cannot detect the light reflected by the reflecting plate 18, and the CPU 101 can determine that puncturing has been performed.

  In FIG. 4, a recharge knob 40 is further disposed on the bottom surface of the main body 10. The recharge knob 40 charges the puncture needle 42 when it is determined that the puncture by the puncture needle 42 is unsuccessful even if puncture is performed by operating the puncture button 11 and the development of blood on the test paper is not detected. It is used to make a transition again to a state where puncture is possible. The puncture depth adjustment button 44 is an adjustment mechanism for adjusting the puncture depth by the puncture needle 42. With this puncture depth adjustment button 44, the length of the puncture needle 42 protruding from the opening of the contact portion 16 at the time of puncture can be adjusted.

  Next, the internal structure of the body fluid component measuring apparatus 100 will be described. First, FIG. 5 is a cross-sectional view showing an example of the chip 112 and a state before the chip 112 is loaded into the main body unit 10. In addition, the following FIG. 5 thru | or FIG. 9 shows the longitudinal cross section at the time of cut | disconnecting the cover part 10 and a main body of the bodily fluid component measuring apparatus 100 to a longitudinal direction. In these cross-sectional views, the reference numerals may be omitted for some members depending on the drawings, but even in this case, the functions of the members common between the drawings are the same.

  In FIG. 5, the tip 112 collects blood from the contact portion 16, the puncture needle 42, the base end portion 43 of the puncture needle 42, the test paper 48, and the site where the puncture has been performed and develops the blood on the test paper 48. A suction hole (or spotting hole) 50 is provided. The suction hole 50 has a distal end located at the opening of the contact portion 16 so as to be positioned near the puncture site when the contact portion 16 is pressed against the blood collection site.

  The chip 112 is attached to the distal end portion of the housing 12 in the main body 10. The proximal end portion 43 of the puncture needle 42 is attached to an attachment portion 41 provided at the distal end portion of the plunger 14. Springs 52 and 54 are disposed on the plunger 14. The springs 52 and 54 are partitioned by a partition member 53. The partition member 53 is fixed in the housing 12 and biases the spring 52 or 54 against the end portion 51 or 55 by the movement of the plunger 14.

  A reflective plate 18 is disposed on the top of the plunger 14, and locking claws 17 and 19 are disposed on the end of the plunger 14 near the reflective plate 18. This locking claw can engage with the seesaw-like member 20 to lock the plunger 14. An engagement releasing member 23 is disposed in the vicinity of the seesaw-like member 20. The disengagement member 23 is interlocked with the puncture button 11, and when the puncture button 11 is operated and moves in a direction to be pushed into the main body 10, the distal end portion 23 a of the disengagement member 23 is also a seesaw-like member. Move in the direction of 20.

  Although the photo reflector 38 is disposed on the substrate 36, the chip 112 is not mounted in FIG. A liquid crystal display 30, a buzzer 60, a communication jack 62, and a connector 64 are disposed on the substrate 36. A flat cable 66 is connected to the connector 64, and can communicate with a plate switch 68 (mounting detection unit 111) for chip mounting detection, an LED 70 as the light emitting unit 107, and a PD 72 as the light receiving unit 108. The plate switch 68 is a switch for detecting the mounting of the chip 112 on the housing 12. A lens 74 is arranged on the surface of the LED 70 and the PD 72.

  Next, a case where the chip 112 is mounted on the housing 12 will be described with reference to FIG. FIG. 6 is a cross-sectional view of the body fluid component measuring apparatus 100 showing an example of a state in which the chip 112 is mounted on the housing 12.

  In FIG. 6, a chip 112 is attached to the housing 12. At this time, the plate switch 68 can contact the surface of the chip 112 to detect mounting. Further, the spring 52 is sandwiched between the end portion 51 and the partition member 53 and compressed by mounting the tip 112. This is because the plunger 14 is pushed into the main body 10 by mounting the tip, and as a result, the locking claws 17 and 19 engage with the seesaw-like member 20. Further, the reflector 18 is positioned directly below the photo reflector 38. Thereby, the photo reflector 38 can detect the reflected light from the reflecting plate 18 and can detect the puncture preparation state in which the tip 112 is mounted and the puncture spring 52 is biased.

  Such a state is referred to as a “charge state” in the present embodiment. In the jersey state, the urging force of the spring 52 exerts a force that causes the plunger and the tip to jump out in the opening direction of the contact portion 16, and this is limited by the engagement between the locking claws 17 and 19 and the seesaw-like member 20. ing. Accordingly, when the engagement between the locking claws 17 and 19 and the seesaw-like member 20 is released, the tip 112 and the plunger 14 are moved in the opening direction of the contact portion 16 by the biasing force of the spring 52, and the puncture needle 42. Pops out of the opening and can be punctured.

  In the body fluid component measuring device 100 corresponding to the present embodiment, puncture by operation of the puncture button 11 is possible only in a state where the contact portion 16 is pressed against the skin of the user who is trying to collect blood. Therefore, the body fluid component measuring device 100 of the present embodiment is configured such that the engagement between the locking claws 17 and 19 and the seesaw-like member 20 is released only when the contact portion 16 is pressed against the skin. ing.

  FIG. 7 is a diagram illustrating a state where the puncture button 11 is operated in a state where the contact portion 16 is not pressed against the skin. As shown in FIG. 7, if the contact portion 16 is not pressed against the skin, the step portion 23b of the disengagement member 23 is a seesaw shape even if the puncture button 11 is pushed into the main body portion 10. The tip of the member 20 is not in contact with the tip 20a, and the inclination of the seesaw-like member 20 does not change. In such a state, so-called “empty pressing” is performed, and even if the puncturing button 11 is operated, puncturing is not performed.

  On the other hand, FIG. 8 is a diagram illustrating a state where the puncture button 11 is operated in a state where the contact portion 16 is pressed against the skin. As shown in FIG. 8, when the contact portion 16 is pressed against the skin, the entire housing 12 connected to the contact portion 16 is pressed into the main body portion 10. Even at this time, the reflecting plate 18 has a sufficient length in the longitudinal direction of the housing 12, and thus is located immediately below the photo reflector 38. In this state, when the puncture button 11 is operated to be pushed into the main body portion 10, the step portion 23b of the disengagement member 23 comes into contact with the tip portion 20a of the seesaw-like member 20, and the tip portion 20a is brought into contact with the step portion 23b. The seesaw-like member 20 is tilted so that the tip 20a is on the upper side in the riding state. Thereby, the engagement between the seesaw-like member 20 and the locking claws 17 and 19 is released.

  By this releasing operation, the plunger 14 moves in the opening direction of the contact portion 16 as shown in FIG. 9, and the puncture needle 42 protrudes from the opening of the contact portion 16. As a result, puncturing is performed. At this time, since the reflecting plate 18 moves in the opening direction together with the plunger 14, the reflecting plate 18 is displaced from a position immediately below the photo reflector 38.

  Further, in this puncture state, the spring 54 is compressed while being sandwiched between the partition member 53 and the end portion 55. Therefore, the position of the plunger 14 immediately follows the biasing force of the spring 54 after the state of FIG. The spring 52 and the spring 54 are moved to a balanced position. When the puncture is completed, blood can be collected from the portion compressed by the contact portion 16, and the collected blood is guided to the test paper 48 through the suction hole 50.

  When blood adheres to the test paper 48, the color developing reagent that is carried reacts with blood components to develop color, and the color measurement is performed by the PD 72 receiving the irradiation light from the LED 70, and blood glucose is measured based on the color measurement result. The value is measured.

  The state of coupling between the chip 112 and the housing 12 will be further described with reference to the sectional view of FIG. FIG. 10 shows a cross section when the main body 10 of the body fluid component measuring apparatus 100 is cut in the longitudinal direction. In FIG. 10, the tip 112 is attached to the tip of the housing 12, and the contact portion 16 located at the tip of the tip 112 and the housing 12 are integrated. The housing 12 can determine the position of the housing 12 in the main body 10 by springs 22 and 24. Further, the proximal end portion 43 of the puncture needle 42 is fitted and held in the mounting portion 41 of the plunger 14, and the puncture needle 42 is integrated with the plunger 14.

  In this way, when the contact portion 16 is pressed against the skin, the housing 12 is repelled by the springs 22 and 24 in conjunction with the contact portion 16 and pushed into the main body portion 10 to form the engagement release member 23 and the seesaw shape. The member 20 approaches and the engaged state can be released. When the contact portion 16 is separated from the skin, the housing 12 returns to the normal arrangement in the main body portion 10 by the biasing force of the springs 22 and 24.

  Processing corresponding to the present embodiment executed in the body fluid component measurement device 100 as described above will be described.

  FIG. 11 is a flowchart of processing corresponding to the present embodiment. The processing corresponding to FIG. 11 can be performed by the CPU 101 executing the processing program stored in the memory 105.

  First, in step S1101, it is detected whether or not the chip 112 is mounted on the housing 12. This detection can be performed using the plate switch 68. If mounting of the chip 112 is detected (“YES” in step S1101), the process proceeds to step S1102. If the mounting of the chip 112 is not detected (“NO” in step S1101), monitoring of whether the chip 112 is mounted is continued. At this time, the voice output unit 109 can be notified so that the chip 112 is mounted, or a message can be displayed on the display unit 110.

  In step S1102, it is determined whether the mounted chip 112 is in a “charged state”. The definition of the charge state is as described above. This determination can be made using the photo reflector 38 and the reflector 18 in the puncture detection unit 102. If it is in the charged state, as shown in FIG. 6, the reflector 18 is positioned immediately below the photoreflector 38, so that the reflected light from the reflector 18 can be detected by the photoreflector 38. On the other hand, when not in the charged state, for example, the photoreflector 38 cannot detect the reflected light of the reflecting plate 18 because it is placed in a positional relationship as shown in FIG.

  Accordingly, if the photo reflector 38 can detect the reflected light from the reflecting plate 18, it is assumed that the photo reflector 38 is in a charged state ("YES" in step S1102), and the process proceeds to step S1104. On the other hand, if the photoreflector 38 cannot detect the reflected light from the reflecting plate 18, it is determined that the photoreflector 38 is not in a charged state ("NO" in step S1102), and the process proceeds to step S1103. In step S <b> 1103, the voice output unit 109 notifies the charging error that the charging state is not present, or displays an error message on the display unit 110. At this time, the audio output unit 109 can be notified by a buzzer sound using the buzzer 60. Then, it returns to step S1102 and continues a process. The user can use the recharge knob 40 to recharge the battery.

  In step S1104, it is determined whether puncturing has been performed. This determination can be made based on whether or not the state where the reflected light from the reflecting plate 18 is detected in the photo reflector 38 has shifted to a state where the reflected light cannot be detected. In other words, in the present embodiment, when the abutting portion 16 is pressed against the skin and the puncture button 11 is operated from the state in which the reflector 18 is positioned immediately below the photo reflector 38 in the charged state, the disengagement member 23 The engagement state between the locking claws 17 and 19 and the seesaw-like member 20 is released, and the reflecting plate 18 is no longer located directly below the photo reflector 38. As a result, the photo reflector 38 cannot detect the reflected light from the reflecting plate 18. Note that when the skin is pressed against the contact portion 16 and the puncture button 11 is not operated, the reflector 18 has a sufficient length in the longitudinal direction of the housing 12, and therefore is positioned directly below the photo reflector 38. Is maintained.

  If the photoreflector 38 shifts from a state in which the reflected light can be detected to a state in which it cannot be detected, it is determined that puncturing has been performed ("YES" in step S1104), and the process proceeds to step S1105. On the other hand, if there is no change while the photoreflector 38 can detect the reflected light, it is determined that the puncture has not been performed (“NO” in step S1104), and it is determined whether the puncture has been performed. Continue in S1104.

  In step S1105, based on detection of puncture, the timer 104 is started to start timing. When the timer 104 is started, a time measurement start notification may be notified by the audio output unit 109. At this time, display on the display unit 110 can also be performed. The time keeping time at this time can be set to 5 seconds, for example. The length of the time measurement is desirably set longer than the time from when the puncture is performed until the blood adheres to the test paper 48 and the development can be detected.

  In step S 1106, it is determined whether blood has spread on the test paper 48 based on the light reception result in the light receiving unit 108. If the development of blood is confirmed (“YES” in step S1106), the process proceeds to step S1107, and the blood sugar level measurement process is started. At this time, the start of measurement may be notified by the audio output unit 109 or may be displayed on the display unit 110.

  On the other hand, when the development of blood is not confirmed (“NO” in step S1106), the process proceeds to step S1108. In step S1108, it is determined whether or not the time measured in step S1105 has elapsed. If the measured time has elapsed (“YES” in step S1108), the process proceeds to step S1109. On the other hand, when the time has not elapsed ("NO" in step S1108), the process returns to step S1106 and the process is continued.

  In step S1109, the measurement error is notified by the voice output unit 109 or notified by display on the display unit 110, assuming that the puncture and blood development have not been performed correctly. Of course, both voice and display may be used. Thereafter, the process ends.

  According to the present invention as described above, the tip 112 as a body fluid collecting tool used in the body fluid component measuring device has the contact portion 16 pressed against the periphery of the skin puncture site, and the skin protruding from the opening of the contact portion 16. A puncture needle 42 that is a puncture member that forms a wound in the body fluid and exudes body fluid, and a test paper 48 and a suction hole 50 as a body fluid detection unit that has a reagent that reacts with a predetermined component in the body fluid and develops the body fluid. . The tip 112 is detachably attached to the distal end portion of the housing 12, and the puncture needle 42 is held by a plunger 14 that can be displaced in the housing 12.

  Further, the tip 112 attached to the housing 12 can be made to protrude from the opening of the contact portion 16 by applying a biasing force to the puncture needle 42 by the end portion 51, the spring 52, the partition member 53 and the plunger 14. ing. Protrusion of the puncture needle 42 using the urging force of the spring 52 or the like is limited by the locking claws 17 and 19 and the seesaw-like member 20. However, only when the contact portion 16 is pressed around the puncture site, the above-described restriction can be released using the disengagement member 23 based on the operation of the puncture button 11.

  Further, when the restriction on the protrusion of the puncture needle 42 is released in this way, the release of the restriction can be detected using the puncture detection unit 102, that is, the photo reflector 38 and the reflection plate 18. In addition, when the timer 104 starts timing in response to detection by the puncture detection unit 102, and when a predetermined time (for example, 5 seconds) is measured, blood does not spread on the test paper 48 or deployment is insufficient. When measurement of a predetermined component contained in blood is not started, an error can be notified by the audio output unit 109 or the display unit 110.

  As described above, according to the body fluid component measuring apparatus 100 corresponding to the present embodiment, the actual movement of the puncture needle is detected, not the mere operation of the puncture button, and the time measurement by the timer is started and within a predetermined time. It can be determined whether the blood has developed. Therefore, if it is configured to start the timer in conjunction with the operation of the puncture button, even if the puncture button is not pressed and the puncture is not actually performed, the timer is started and an error is notified. In the present invention, there is no error notification when the puncture button is idled.

  In addition, since the voice output unit can be used to notify until an error occurs or measurement is started after puncture is actually performed, the user should press the contact portion 16 against the skin. The period can be easily grasped. That is, when the puncture is performed simultaneously with the start of the timer, and the blood does not expand within a certain time (for example, 5 seconds), an error is notified, thereby separating the apparatus from the blood collection site. Also, when blood develops within a certain time and shifts to measurement processing, the fact is notified, and the device is similarly moved away from the blood collection site, and the device is pressed against the site until the notification is received. I can leave it to you.

  Furthermore, whether or not puncturing has been performed can be detected by a non-contact mechanism using a photoreflector and a reflecting plate, so that there is no blurring of the needle in the puncture mechanism, and deterioration of puncture performance can be prevented. it can.

It is a figure which shows an example of the hardware constitutions of the bodily fluid component measuring apparatus 100 corresponding to embodiment of this invention. It is an external appearance perspective view which shows an example of the bodily fluid component measuring apparatus 100 corresponding to embodiment of this invention. 1 is an external perspective view showing an example of a body fluid component measuring device 100 when a charged state is released and a puncture needle protrudes from an opening of a contact portion 16 corresponding to the embodiment of the present invention. FIG. It is an external appearance perspective view which shows another example of the bodily fluid component measuring apparatus 100 corresponding to embodiment of this invention. 1 is a longitudinal sectional view of a body fluid component measuring apparatus 100 showing an example of a chip 112 and a state before the chip 112 is loaded into a main body unit 10, corresponding to an embodiment of the present invention. 1 is a longitudinal sectional view of a body fluid component measuring device 100 showing an example of a state in which a chip 112 is mounted on a housing 12 according to an embodiment of the present invention. It is a longitudinal cross-sectional view which shows an example of the state of the bodily fluid component measuring apparatus 100 at the time of "empty pushing" corresponding to embodiment of this invention. It is a longitudinal cross-sectional view which shows an example of the state of the bodily fluid component measuring apparatus 100 when the puncture button 11 is operated in the state which pressed the contact part 16 to skin corresponding to embodiment of this invention. It is a longitudinal cross-sectional view which shows an example of the state which the restriction | limiting of the puncture needle 42 was cancelled | released by operation of the puncture button 11 in the state which pressed the contact part 16 against skin corresponding to embodiment of this invention. It is a cross-sectional view of the body fluid component measuring apparatus 100 corresponding to the embodiment of the present invention. It is a flowchart which shows an example of the process corresponding to embodiment of this invention.

Explanation of symbols

10: body part, 11: puncture button, 12: housing, 13: tip, 14: plunger, 16: contact part, 17, 19: locking claw, 18: reflector, 20: seesaw-like member, 20a: seesaw 22: 24: Spring, 23: Engagement release member, 23a: End part of engagement release member, 23b: Step part of engagement release member, 26: Battery, 28: Lid, 30: Liquid crystal display, 32, 34: Button, 36: Substrate, 38: Photo reflector, 40: Recharge knob, 41: Mounting portion, 42: Puncture needle, 43: Puncture needle proximal end, 44: Puncture depth adjustment button, 48 : Test paper, 50: Suction hole (dotted hole), 51, 55: End, 52, 54: Spring, 53: Partition member, 60: Buzzer, 62: Jack for communication, 64: Connector, 66: Flat cable , 68: Chi Plate switch for up mounting detection, 70: LED, 72: PD, 74: Lens

Claims (5)

A contact member that is pressed around the puncture site of the skin; a puncture member that protrudes from the opening of the contact member to form a wound on the skin and exudes body fluid; and a reagent that reacts with a predetermined component in the body fluid A bodily fluid component measuring device that is used by wearing a bodily fluid collecting tool equipped with a bodily fluid detection unit that deploys the bodily fluid,
Protruding means for holding the puncture member and applying an urging force to the puncture member to project from the opening of the contact member;
Limiting means for limiting the protrusion of the puncture member due to the biasing force;
Release means for releasing the restriction by the restriction means when the contact member is pressed around the puncture site;
Detecting means for detecting movement of the puncture member when the restriction is released by the release means and the puncture member is moved;
Triggered by the detection by the detection means, a timing means for starting measurement for a predetermined time;
Measuring means for measuring a predetermined component contained in the body fluid developed in the body fluid detection unit;
Informing means for notifying an error when measurement of the predetermined component by the measuring means is not started when the predetermined time is measured by the time measuring means,
A body fluid component measuring apparatus comprising:   The said detection means detects the movement of the said puncture member based on the change of the detection state of the reflected light from the reflection member provided in at least any one of the said puncture member or the said protrusion means. The bodily fluid component measuring apparatus according to 1.   The bodily fluid according to claim 2, wherein the detecting means detects movement of the puncture member based on a change from a state in which reflected light from the reflecting member is detected to a state in which the reflected light cannot be detected. Component measuring device. The notification means includes
When the measurement of the predetermined time by the time measuring means is started, further informing the start of time measurement,
4. The measurement start is further notified when the measurement of the predetermined component by the measuring unit is started before the predetermined time has elapsed after the start of the time measurement. The body fluid component measuring apparatus as described. A contact member that is pressed around the puncture site of the skin; a puncture member that protrudes from the opening of the contact member to form a wound on the skin and exudes body fluid; and a reagent that reacts with a predetermined component in the body fluid A bodily fluid component measuring device that is used by wearing a bodily fluid collecting tool equipped with a bodily fluid detection unit that deploys the bodily fluid,
Protruding means for holding the puncture member and applying an urging force to the puncture member to project from the opening of the contact member;
Limiting means for limiting the protrusion of the puncture member due to the biasing force;
Release means for releasing the restriction by the restriction means when the contact member is pressed around the puncture site;
A method for controlling a bodily fluid component measuring device comprising a measuring means for measuring a predetermined component contained in the bodily fluid developed in the bodily fluid detecting unit,
A detection step of detecting movement of the puncture member when the restriction is released by the release means;
Triggered by the detection in the detection step, a timing step for starting measurement for a predetermined time,
An informing step for informing an error when measurement of the predetermined component by the measuring means is not started when a predetermined time has elapsed from the start of the time measurement,
A control method for a body fluid component measuring device.