JP2020151219A - Biological information measurement device - Google Patents

Abstract

To enable performing appropriate calculation of a blood glucose level with respect to a biological information measurement device for performing continuous blood glucose measurement.SOLUTION: A sensor unit 9 mounted on a sensor base 4 and measuring biological information is provided. The sensor unit 9 has a connection part 42 of a plate-like body in the vertical direction, and disposed at the upper side, and an insertion part 43 into the human body, extended laterally from the connection part 42 and extended downward. A heat transmission-suppressing recess 44 is provided in an extended part from the connection part 42 to the lateral side in the insertion part 43.SELECTED DRAWING: Figure 48

Description

The present invention relates to, for example, a biological information measuring device that measures continuous blood glucose.

The configuration of the conventional biometric information measuring device is as follows.
That is, a sensor unit is mounted on the sensor base, and the sensor unit has an upper connection portion and an insertion portion into the human body extending downward from the connection portion, and the insertion portion is inserted into the human body. As a result, continuous blood glucose measurement was performed (for example, Patent Document 1 below).

Special Table 2015-50911

In the above conventional example, the blood glucose level is detected by the insertion portion of the sensor unit, transmitted to the control unit via the upper connection portion, the blood glucose level is calculated by this control unit, and the blood glucose level is continuously stored in the storage unit. It is supposed to be recorded.

The problem here is that the blood glucose level detected by the insertion unit of the sensor unit is affected by the temperature of the control unit or the like, and as a result, the blood glucose level is not properly calculated in the control unit.

That is, since the sensor unit is in a state of being electrically connected to the control unit and other parts via the upper connection part, the temperature of the connection part itself is affected by the temperature rise of the control part and the like. Also rises, and heat is transferred to the lower insertion part, which causes variations in the blood glucose level detected at the insertion part, and as a result, the blood glucose level at the control unit is not calculated properly. there were.

Therefore, an object of the present invention is to ensure that the blood glucose level is properly calculated.

In order to achieve this object, the present invention includes a sensor unit mounted on a sensor base to measure biological information. The sensor unit is a vertical plate-like body, and has a connecting portion provided above and an insertion portion into the human body extending laterally from the connecting portion and extending downward. ing. A heat transfer suppressing recess is provided in the extension portion of the insertion portion from the connecting portion to the side, thereby achieving the intended purpose.

As described above, the sensor unit of the present invention is a vertical plate-like body, and is inserted into a connecting portion provided above and a human body extending laterally and downward from this connecting portion. The insertion portion has a portion, and a heat transfer suppressing recess is provided in an extension portion from the connection portion to the side. Therefore, the heat given to the connecting portion is less likely to be transferred to the lower insertion portion by the heat transfer suppressing recess formed in the extension portion to the next side. As a result, an appropriate blood glucose level is detected in the insertion unit, and then an appropriate blood glucose level is calculated in the control unit.

The perspective view which shows the use state of the biological information measuring apparatus which concerns on Embodiment 1 of this invention. The perspective view of the biological information measuring apparatus of FIG. The exploded perspective view of the biological information measuring apparatus of FIG. An exploded perspective view of the sensor base of FIG. The perspective view of the transmitter of FIG. Front view of the transmitter of FIG. An exploded perspective view of the transmitter of FIG. The electric circuit diagram of the biological information measuring apparatus of FIG. The exploded perspective view which shows the inserter which attaches the sensor base of FIG. FIG. 9 is a perspective view of the inserter of FIG. FIG. 9 is a cross-sectional view of the inserter of FIG. Partially enlarged cross-sectional view of the inserter of FIG. The perspective view which shows the state which the transmitter is attached to the sensor base of FIG. The front view which shows the state which the transmitter is attached to the sensor base of FIG. The front view which shows the state which the transmitter is attached to the sensor base of FIG. The front view which shows the state which the transmitter is attached to the sensor base of FIG. The perspective view from above of the sensor base of FIG. A partially enlarged perspective view of the sensor base of FIG. FIG. 3 is a cross-sectional view of the biological information measuring device of FIG. The plan view of the biological information measuring apparatus of FIG. Top view of the sensor base of FIG. FIG. 2 is a cross-sectional view taken along the line AA of FIG. FIG. 2 is a cross-sectional view taken along the line AA of FIG. FIG. 2 is a cross-sectional view taken along the line AA of FIG. The plan view which shows the state which the transmitter is attached to the sensor base of FIG. Top view of the sensor base of FIG. Top view of the sensor base of FIG. Top view of the sensor base of FIG. A partially enlarged cross-sectional view of the biological information measuring device of FIG. The perspective view of the biological information measuring apparatus of FIG. The front view of the biological information measuring apparatus of FIG. The plan view which shows the structure of the bottom surface part in the biological information measuring apparatus of FIG. The front view which shows the state which removes the biometric information measuring apparatus of FIG. FIG. 3 is a perspective view showing a state in which the transmitter of the biological information measuring device of FIG. 1 is removed. FIG. 3 is a perspective view showing a state in which the transmitter of the biological information measuring device of FIG. 1 is removed. FIG. 3 is a cross-sectional view of the biological information measuring device of FIG. FIG. 6 is an enlarged cross-sectional view of a portion A in FIG. Top view of the sensor base of FIG. The perspective view of the sensor base of FIG. The perspective view of the sensor base of FIG. Top view of the sensor base of FIG. FIG. 1 is a cross-sectional view of the sensor base of FIG. The plan view which shows the arrangement relation in the sensor base of FIG. The perspective view which shows the component in the sensor base of FIG. The perspective view which shows the component in the sensor base of FIG. The exploded perspective view which shows the component in the sensor base of FIG. The plan view which shows the component in the sensor base of FIG. The front view which shows the sensor unit of the sensor base of FIG. The front view which shows the sensor unit of the sensor base of FIG. The front view which shows the other sensor unit in the sensor base of FIG. The front view which shows the other sensor unit in the sensor base of FIG. The perspective view which shows the sensor unit of the sensor base of FIG. The perspective view which shows the mounting state of the sensor unit in the sensor base of FIG. The perspective view which shows the mounting state of the sensor unit in the sensor base of FIG. The perspective view which shows the mounting state of the sensor unit in the sensor base of FIG. The plan view which shows the mounting state of the sensor unit in the sensor base of FIG. The plan view which shows the mounting state of the sensor unit in the sensor base of FIG. The cross-sectional view which shows the mounting state of the sensor unit in the sensor base of FIG. Top view of the sensor base of FIG. Bottom view of the sensor base of FIG.

(Embodiment 1)
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 shows a biological information measuring device 1. The biological information measuring device 1 is attached to the arm 3 of the human body 2, and is in a state of continuously measuring, for example, a blood glucose level.

As shown in FIGS. 2 to 7, the biological information measuring device 1 is composed of a sensor base 4 and a transmitter 5 attached to the sensor base 4. As shown in FIG. 3, the sensor base 4 has a circular shape having an opening 6 on the upper surface thereof, and the circular transmitter 5 is detachably attached to the opening 6.

Further, as shown in FIG. 4, an upper double-sided tape 7 and a lower skin tape 8 are provided on the bottom surface of the sensor base 4. That is, the skin tape 8 is in a state of being adhered to the bottom surface of the sensor base 4 by the double-sided tape 7. Therefore, as shown in FIG. 1, when the sensor base 4 is attached to the human body 2, the skin tape 8 is adhered to the human body 2.

Then, when the transmitter 5 is attached to the opening 6 of the sensor base 4 attached to the human body 2, the attachment of the biological information measuring device 1 in FIG. 1 is completed.
The mounting work of the biological information measuring device 1 will be further clarified in the following description, but before that, the configurations of the sensor base 4 and the transmitter 5 will be described.

As shown in FIGS. 4 and 8, the sensor unit 9, the battery 10, and the temperature sensor 11 are housed in the sensor base 4. A part of the sensor unit 9 penetrates the bottom surface of the sensor base 4 and is inserted into the human body 2 to continuously measure the blood glucose level. The temperature sensor 11 detects the temperature of the human body 2, and the temperature is corrected when the blood glucose level is calculated by the control unit 12 in the transmitter 5. Then, the calculated blood glucose level is recorded in the storage unit 13, and the recorded blood glucose level can be read out to the mobile terminal 15 via the communication unit 14.

As shown in FIGS. 5 to 7, the transmitter 5 has a disk shape, and the substrate 16 on which the control unit 12, the storage unit 13, and the communication unit 14 are mounted is in a state of being molded into the transmitter 5. There is. As shown in FIG. 5, a plurality of electrodes 17 are concentrically arranged on the lower surface side of the substrate 16, and these are in a state of being exposed on the lower surface side of the transmitter 5 via the electrodes 17. The electrode 18 of the sensor base 4 shown in FIG. 8 is electrically connected to the electrode 18.

Further, such an electrical connection between the electrodes 17 to 18 is made via the multi-pole contact 19 as shown in FIGS. 3 and 4. That is, the multi-pole contact 19 is arranged in the sensor base 4, the electrode 17 of the transmitter 5 shown in FIG. 8 is in contact with the upper surface side of the multi-pole contact 19, and the sensor shown in FIG. 8 is on the lower surface side of the multi-pole contact 19. The electrodes 18 of the base 4 come into contact with each other, thereby completing the electrical connection between the transmitter 5 and the sensor base 4.

In the sensor base 4, as shown in FIG. 3, an annular gasket 20 is arranged on the outer circumference of the battery 10 and the multi-pole contact 19, and the lower surface side of the gasket 20 comes into contact with the sensor base 4. Further, the outer peripheral portion of the electrode 17 (see FIG. 5) of the transmitter 5 is pressure-welded to the upper surface side of the gasket 20, thereby taking measures against watertightness in the sensor base 4.

As shown in FIGS. 5 and 6, an annular locking portion 21 is provided on the outer peripheral portion of the transmitter 5, and the locking portion 21 is provided in the sensor base 4 as shown in FIG. It is engaged with the locking claws 22 which are evenly arranged (120 degrees) at three places. As a result, the transmitter 5 is mounted so as to cover the opening 6 of the sensor base 4, and the lower surface of the transmitter 5 is pressed against the upper surface of the gasket 20 to ensure watertightness in the sensor base 4.

As shown in FIGS. 9 to 12, the sensor base 4 is held in the lower part of the inserter 23, and a cap 24 is attached to the lower part of the inserter 23 so as to cover the sensor base 4.

In this state, when the flange 26 provided on the upper part of the cap 24 is heat-welded to the flange 25 provided on the lower part of the inserter 23, the inside of the inserter 23 and the inside of the cap 24 are sealed. By irradiating the electron beam in this state, the sensor base 4, particularly the guide needle 27 (see FIG. 11) of the inserter 23 for inserting the sensor unit 9 and the sensor unit 9 into the human body 2 is sterilized. It is said.

A desiccant 28 is also housed in the cap 24, and a desiccant holding member 29 is provided between the desiccant 28 and the sensor base 4.
Further, as shown in FIG. 11, the sensor base 4 is arranged in a state of being held in the inserter 23, and at that time, the sensor unit 9 of the sensor base 4 is in a state of being arranged in the guide needle 27. Therefore, when the sensor base 4 is attached to the human body 2 using the inserter 23 as shown in FIG. 1, the user first turns the cap 24 from the inserter 23 to break the flange 26 portion of the cap 24, thereby breaking the flange 26 portion of the cap 24. Remove the cap 24 from the inserter 23. In that state, the user moves the inserter 23 to a place where the sensor base 4 is attached, pushes the inserter 23 down with respect to the human body 2, and the lower part of the sensor unit 9 is inserted into the human body 2 by the guide needle 27. To.

Then, when the rack gear 30 is pushed downward by this pushing-down operation, the pinion gear 31 rotates clockwise, whereby the rack gear 32 holding the guide needle 27 rises, and the sensor base 4 is moved to the human body 2. Installation is complete.

At this time, the lower part of the guide needle 27 is securely housed in the inserter 23, and a part of the guide needle 27 is not desired from below, so that the safe mounting work is performed. In this mounting operation, the skin tape 8 shown in FIG. 4 is pressed against the human body 2, whereby the sensor base 4 is securely attached to the human body 2.

Next, as shown in FIGS. 13 to 16, the transmitter 5 is attached to the sensor base 4 thus attached to the human body 2.
Specifically, as shown in FIG. 13, the transmitter 5 is pinched by a finger and brought into contact with the opening 6 of the sensor base 4. Next, as shown in FIGS. 14 to 16, the transmitter 5 can be easily attached to the sensor base 4 by pushing the transmitter 5 toward the sensor base 4 with a finger. In order to facilitate such work, the devices shown in FIGS. 17 to 29 are devised.

First, as shown in FIG. 17, the locking claw bodies 22 are arranged at three locations at equal intervals on the outer peripheral portion of the gasket 20 of the sensor base 4. Each locking claw body 22 has two locking claws 33 in the left-right direction, and an opening 34 is arranged below the locking claw 33 as shown in FIG. .. Therefore, when the left and right locking claws 33 are pushed by the locking portion 21 (see FIG. 19) of the transmitter 5, they are elastically displaced in the outer peripheral direction and then easily displaced in the inner peripheral direction. It will be possible. Of course, the opening 34 is located in the outer peripheral direction of the gasket 20, and the watertightness measures for each component existing inside the gasket 20 are not hindered.

20 to 28 show the work of mounting the transmitter 5 on the sensor base 4 in this way, and the cross-sectional views taken along the line AA of FIGS. 20 and 21 are shown in FIGS. 22 to 24. There is.
First, as shown in FIG. 22, from the state where the transmitter 5 is in contact with the opening 6 of the sensor base 4, as shown in FIG. 25, the user makes a part of the outer circumference of the transmitter 5 (for example, A in FIG. 26). When the point) is pressed, at point A in FIG. 26, as shown in FIG. 23, the outer circumference of the transmitter 5 slides down, and the locking portion 21 of the transmitter 5 engages with the locking claw 33 of the sensor base 4. ..

At that time, the locking portion 21 of the transmitter 5 is in a state of being mounted on the locking claw 33 on the side of the locking claw bodies 22 existing at points B and C shown in FIG. 26 and close to the point A. When further force is applied in this state, the locking claws 33 at points B and C are displaced outward, whereby the transmitter 5 advances further downward, and then the locking claws at points B and C are locked. The locking claw 33 farther than the claw 33 is also displaced outward, and as a result, the transmitter 5 can be easily mounted within the sensor base 4, as shown in FIGS. 23-24.

27 and 28 are views in which the transmitter 5 is placed in the opening 6 of the sensor base 4 at a position different from that in FIG. Regardless of where the transmitter 5 is placed in the opening 6 of the sensor base 4, if the user pushes the transmitter 5, the transmitter 5 is locked at the pushed portion (part A in FIG. 27, part A in FIG. 28). It slides toward the front side of the claw 33 and moves below the locking claw 33. Then, the locking portion 21 of the transmitter 5 is placed on the locking claws 33 at two locations (points B and C) among the locking claw bodies 22 provided at the three locations. When a force is further applied in this state, the locking claws 33 at points B and C are displaced outward, and the transmitter 5 can be easily attached to the sensor base 4.

That is, each locking claw body 22 has a plurality of locking claws 33, but when the transmitter 5 is pushed down, the transmitter 5 is locked to the locking claws 33 at two places (points B and C). The part 21 is in a state of getting on. Then, the locking claws 33 are displaced outward one by one from the locking claws 33 in the leaning state. Therefore, the locking claw body 22 is displaced outward with a small force, and the transmitter 5 is attached to the sensor base 4.

In this mounting work, the transmitter 5 can be smoothly mounted on the sensor base 4 with a small force, that is, the transmitter 5 can be mounted vigorously on the sensor base 4, so that the locking claw 33 hits the locking portion 21 of the transmitter 5 and clicks. Is emitted, and this sound allows the user to confirm that the transmitter 5 has been installed.

Moreover, when this mounting work is completed, the transmitter 5 is held by the sensor base 4 by the plurality of locking claws 33 of the locking claw bodies 22 provided at three places, and this holding state can be reliably maintained. Further, as shown in FIG. 29, since the lower end portion of the transmitter 5 is pressed against the top portion of the gasket 20, the watertight structure of the gasket 20 can be reliably maintained.

30 to 33 show a portion of the sensor base 4 attached to the human body 2.
As described above, the double-sided tape 7 and then the skin tape 8 are provided on the lower surface of the sensor base 4, and these two sheets are adhesive layers in this embodiment. In the present embodiment, an adhesive surface is formed on the upper and lower surfaces of the double-sided tape 7, and an adhesive surface is formed only on the lower surface of the skin tape 8.

Further, as shown in FIGS. 31 to 32, the outer shape of the skin tape 8 is smaller than the outer shape of the sensor base 4, and the double-sided tape 7 is smaller than the outer shape of the skin tape 8. That is, on the upper surface of the skin tape 8, a non-adhesive surface 8a with respect to the sensor base 4 is provided on the outer peripheral portion of the double-sided tape 7. Then, as shown in FIG. 31, the non-adhesive surface 8a faces the outer peripheral portion of the lower surface of the sensor base 4.

Therefore, when the sensor base 4 is removed from the human body 2, as shown in FIG. 33, if the human body 2 on the outer peripheral portion of the sensor base 4 is pushed down, a gap 35 is formed between the skin tape 8 and the sensor base 4. If the claw 37 of the finger 36 is inserted into this gap 35, the sensor base 4 can be peeled off from the human body 2 very easily from that point.

When the peeling work of the sensor base 4 is not performed, the outer periphery of the skin tape 8 is located inside the outer periphery of the sensor base 4 and is not exposed. Therefore, the skin tape 8 should be peeled off carelessly during daily work. In the normal state, the sensor base 4 is securely attached to the human body 2 by the skin tape 8 and the double-sided tape 7.

Next, the work of peeling the transmitter 5 from the sensor base 4 removed from the human body 2 will be described with reference to FIGS. 34 to 39.
First, in the sensor base 4, a removal recess 38 is provided in a part of the opening edge of the opening 6 as shown in these figures.

What is characteristic of this embodiment is that, as shown in FIG. 38, the removal recess 38 is provided between the left and right locking claw bodies 22, and of the left and right locking claws 33 of the left and right locking claw bodies 22. As shown in FIGS. 36 and 37, the removal recess 38 side is provided with an inclined surface 39 that reduces the amount of engagement of the transmitter 5 with the locking portion 21.

Since the inclined surface 39 of the locking claw 33 is provided with an inclination such that the removal recess 38 side is upward, the amount of engagement by the locking claw 33 with the locking portion 21 of the transmitter 5 is reduced. ..

Therefore, as shown in FIGS. 34 and 35, if the transmitter 5 is lifted by the finger 36 in the removal recess 38, the transmitter 5 can be easily displaced while the locking claw 33 having a small engagement amount is displaced outward. It can be removed from the sensor base 4. At this time, as shown in FIG. 39, one locking claw body 22 exists on the opposite side of the removal recess 38, and the removal recess 38 side of the transmitter 5 can be lifted with this as a locking point. , It becomes extremely easy to operate.

That is, in the present embodiment, the transmitter 5 is removed from the used sensor base 4, and the transmitter 5 is to be reused. The transmitter 5 is not provided with the battery 10, and the battery 10 is provided in the sensor base 4. Therefore, if the sensor base 4 is replaced with a new one, the battery 10 arranged there will be used as the transmitter 5. Each part will operate reliably.

Next, the arrangement of the battery 10 and the sensor unit 9 in the sensor base 4 will be described with reference to FIGS. 40 to 60.
As described above, the sensor unit 9, the battery 10, the multi-pole contact 19 and the like are arranged in the gasket 20.

The battery 10 and the sensor unit 9 are connected using the wiring board 40 of FIG. 41. Further, as shown in FIGS. 41 and 42, the lower portion of the multi-pole contact 19 is brought into contact with the terminal of the wiring board 40 to form the electrical connection state shown in FIG. Specifically, as shown in FIGS. 43 to 47, two batteries 10 are arranged on the wiring board 40, for example, in the Y-axis direction, and are connected in series using the wiring board 40.

That is, the negative pole of one battery 10 is connected to the wiring board 40 with the conductive tape 40a (see FIG. 46), and the positive pole of the other battery 10 is connected to the wiring board 40 with the conductive tape 40b (see FIG. 46). In this state, as shown in FIG. 44, one positive pole and the other negative pole are connected in series by the folded pattern 41 of the wiring board 40. As a result, the two batteries 10 are connected in series. In this state, the sensor unit 9 and the multi-pole contact 19 are arranged in the X-axis direction orthogonal to each other between the two batteries 10 and are electrically connected to the wiring board 40.

As shown in FIGS. 48 and 49, the sensor unit 9 is a plate-shaped body in the vertical direction, and extends laterally from the upper connecting portion 42 connected to the wiring board 40 of the sensor base 4 and the connecting portion 42. After that, it has an insertion portion 43 into the human body that is extended downward, and the insertion portion 43 is provided with a heat transfer suppressing recess 44 in the extension portion from the connection portion 42 to the side.

One electrode 45 is arranged on one side of the connecting portion 42, and two electrodes 46 and 47 are arranged on the other side as shown in FIG. 52. Further, as shown in FIG. 47, the wiring board 40 is provided with an electrode 48, an electrode 49, and an electrode 50 corresponding to the respective electrodes 45 to 47.

Further, since the sensor base 4 is provided with a slit-shaped opening 51 as shown in FIGS. 53 and 54, the sensor unit 9 is moved from the opening 51 to the sensor base 4 as shown in these figures. When inserted inward, as shown in FIGS. 56 to 58, the electrode 45 of the sensor unit 9 and the electrode 48 of the wiring substrate 40 correspond to each other. Further, it corresponds to the electrode 46 of the sensor unit 9 and the electrode 49 of the wiring board 40, and the electrode 47 of the sensor unit 9 and the electrode 50 of the wiring board 40.

In that state, as shown in FIG. 58, the electrodes 45 to 47 of the sensor unit 9 are arranged in a state orthogonal to the electrodes 48 to 50 of the wiring board 40. Therefore, as shown in FIG. 58, the ultraviolet curable conductive adhesive 52 is applied to each electrode portion, and the other portions are solidified by batch ultraviolet irradiation in the next step.

Further, as shown in FIG. 47, a gap 53 is formed between the electrode 49 and the electrode 50 in the wiring board 40, and a gap 54 is also formed between the electrode 48 and the electrode 50, and further, the gap 54 is formed with the electrode 49. A recess 55 is formed in the portion of the electrode 48.

Then, as shown in FIG. 57, the protrusion 56 is inserted into the gap 53, the protrusion 57 is inserted into the gap 54, and the protrusion 58 is inserted into the recess 55 portion of the sensor base 4. This stabilizes the arrangement positions of the electrodes 48 to 50 on the wiring board 40 and prevents the conductive adhesive 52 from inadvertently moving to the adjacent electrode.

As shown in FIG. 44, the folded pattern 41 of the wiring board 40 is connected to two batteries 10, and this connection is made by an ultraviolet curable conductive adhesive 52.
What is important here is that the conductive adhesive 52 that solidifies when irradiated with ultraviolet rays is the conductive adhesive 52 portion of the battery 10 and the conductive adhesive of the sensor unit 9, as shown in FIGS. 43 and 59. The 52 portions are arranged at orthogonal portions, and are separated from each other for a predetermined period in a plan view.

That is, if there is an overlap in each conductive adhesive 52 portion in a plan view during ultraviolet irradiation, the conductive adhesive 52 is not properly solidified by ultraviolet irradiation. Therefore, in the present embodiment, the above-described battery is used. The conductive adhesive 52 portion of the sensor unit 10 and the sensor unit 9 are arranged so as to be separated from each other for a predetermined period in a plan view.

Further, as described above, the gasket 20 for maintaining the watertight state is arranged outside the battery 10 and the sensor unit 9, and the gasket 20 is also in a state where it does not overlap with the battery 10 and the sensor unit 9.

That is, since the gasket 20 is also formed of the ultraviolet curable resin 59, the gasket 20 is completed and the battery 10 and the sensor unit 9 are electrically connected by one irradiation with ultraviolet rays.

Further, as shown in FIGS. 53 to 55, the sensor base 4 is provided with a slit-shaped opening 51 for inserting the sensor unit 9 from below, and as also shown in FIG. 55, an ultraviolet curable type is provided. Resin 59 of the above is applied. Then, at the time of irradiating ultraviolet rays for completing the gasket 20 and electrically connecting the battery 10 and the sensor unit 9, the resin 59 is solidified by irradiating ultraviolet rays from below the sensor base 4, and the opening is opened. The 51 parts are sealed.

In the state of FIG. 11, the insertion portion 43 of the sensor unit 9 is arranged in the guide needle 27 as shown in FIG. 49. That is, since the guide needle 27 has a U-shaped cross section with the sensor unit 9 side open, the insertion portion 43 of the sensor unit 9 is arranged in the guide needle 27 from this opening. The insertion portion 43 of the sensor unit 9 is extremely delicate and is inserted into the human body 2 to detect the blood glucose level, and is inserted into the human body 2 while being protected by the guide needle 27. Therefore, in order to prevent the guide needle 27 from coming off the sensor unit 9 side when the guide needle 27 is inserted, the downward extension portion of the insertion portion 43 is on the side opposite to the connecting portion 42 below the upper side. It is tilted to.

By doing so, the insertion portion 43 of the sensor unit 9 is in a state of being appropriately protected by the guide needle 27, so that the insertion portion 43 can be smoothly inserted into the human body 2 together with the guide needle 27.
If the contact area between the insertion portion 43 of the sensor unit 9 and the guide needle 27 is too large, the guide needle 27 rubs the insertion portion 43 portion of the sensor unit 9 when the guide needle 27 is pulled out of the human body 2. This may cause damage to the sensor unit 9.

That is, the insertion portion 43 of the sensor unit 9 covers the outer periphery thereof with a protective film, and it is necessary to prevent the protective film from being damaged.
Therefore, as shown in FIGS. 50 and 51, a protrusion 60 is provided on the lower portion of the insertion portion 43 of the sensor unit 9 on the portion opposite to the connection portion 42 and protruding on the side opposite to the connection portion 42. It is preferable to provide it. That is, if the protrusion 60 is provided in this way, it is the protrusion 60 that comes into contact with the guide needle 27, and this protrusion 60 is not protected, so this is the work of pulling out the guide needle 27. Occasionally rubbing against the guide needle 27 does not cause any problems.

In the above configuration, the main feature points in the present embodiment will be described.
<Characteristic point 1>
As described above, the present embodiment has an opening 6 on the upper surface, is mounted on the sensor base 4 in which the sensor unit 9 is housed, and the opening 6 of the sensor base 4, and is mounted on the sensor unit 9. The transmitter 5 includes a control unit 12 connected to the control unit 12, a communication unit 14 connected to the control unit 12, and a transmitter 5 having a storage unit 13, and the transmitter 5 has an annular shape on an outer peripheral portion of a surface on the sensor unit 9 side. 21 is arranged, and a plurality of locking claws 22 to which the locking portion 21 is locked are arranged at predetermined intervals in the opening 6 of the sensor base 4, so that a transmitter to the sensor base 4 is provided. The mounting work of 5 becomes extremely easy.

That is, in the present embodiment, since the annular locking portion 21 is arranged on the outer peripheral portion of the surface of the transmitter 5 on the sensor unit 9 side, if the transmitter 5 is picked up and matched with the sensor base 4, the sensor base 4 It is possible to easily create a state in which the locking portion 21 of the transmitter 5 is surely matched with the locking claw body 22 of the above, and if the transmitter 5 is pushed into the sensor base 4 in this state, the locking claw body 22 of the sensor base 4 can be easily created. The locking portion 21 of the transmitter 5 is securely engaged with the sensor, and the mounting operation of the transmitter 5 can be easily completed.

<Characteristic point 2>
Further, in the present embodiment, the sensor base 4 having the opening 6 on the upper surface and accommodating the sensor unit 9 inside, the sensor base 4 is mounted on the opening 6 of the sensor base 4, and is connected to the sensor unit 9. A control unit 12, a communication unit 14 connected to the control unit 12, and a transmitter 5 having a storage unit 13 are provided, and an annular locking is performed on the outer peripheral portion of the surface of the transmitter 5 on the sensor unit 9 side. The portions 21 are arranged, and a plurality of locking claws 22 to which the locking portions 21 are locked are arranged at predetermined intervals in the opening 6 of the sensor base 4, and the plurality of locking claws 22 are arranged at predetermined intervals. Since a removal recess 38 recessed on the opposite side of the transmitter 5 is formed at the opening edge of the opening 6 between the openings 6, the transmitter 5 can be easily removed.

That is, in the present embodiment, a plurality of locking claws 22 are arranged at predetermined intervals in the opening 6 of the sensor base 4, and an annular locking portion 21 is arranged on the outer peripheral portion of the transmitter 5. Therefore, the transmitter 5 is in a state of being engaged with the opening 6 of the sensor base 4 at a plurality of points by a plurality of locking claws 22 portions. Therefore, in the opening 6 of the sensor base 4, if a finger 36 is placed in the removal recess 38 formed between the locking claw bodies 22, for example, the transmitter 5 can be easily placed on the opening 6 of the sensor base 4 from that portion. Can be removed.

That is, in the portion where the finger 36 is hung, the locking portion 21 of the transmitter 5 is a portion that is not locked to the locking claw body 22 of the sensor base 4, and the transmitter 5 is placed on the sensor base 4 from this portion. It is extremely easy to pull up, and when the transmitter 5 is lifted, the locking portion 21 of the transmitter 5 locked to the locking claw body 22 of the sensor base 4 is also lifted diagonally. In this state, the locking force of the transmitter 5 on the locking portion 21 by the locking claw 22 is also reduced, and as a result, the transmitter 5 is sensor-based by lifting with only one finger 36, for example. It can be easily removed from No. 4.

<Characteristic point 3>
Further, in the present embodiment, an adhesive layer (double-sided tape 7 and skin tape 8) for mounting the sensor base 4 on the human body 2 is provided on the mounting surface of the sensor base 4 on the human body 2, and the outer shape of the adhesive layer is provided. Is smaller than the outer shape of the sensor base 4, and a non-adhesive surface 8a is provided on the outer peripheral portion of the adhesive layer on the sensor base 4 side, so that the sensor base 4 is stable with respect to the human body 2. It can be held in the state of being.

That is, in the present embodiment, since the adhesive layer for mounting the sensor base 4 on the human body 2 is smaller than the outer shape of the sensor base 4, the peeling phenomenon is unlikely to occur on the outer peripheral portion of the adhesive layer. As a result, the adhesive layer holds the sensor base 4 in a stable state with respect to the human body 2.

Further, in the present embodiment, since the non-adhesive surface 8a is provided on the surface on the sensor base 4 side in the outer peripheral portion of the adhesive layer, when the sensor base 4 is peeled off from the human body 2, the outer peripheral portion of the adhesive layer is used. A gap 35 for peeling can be formed in the non-adhesive surface 8a portion on the sensor base 4 side, and as a result, the sensor base 4 can be easily peeled off from the human body 2.

<Characteristic point 4>
Further, in the present embodiment, the sensor unit 9 mounted on the sensor base 4 is a vertical plate-like body, and is extended laterally from the upper connecting portion 42 and the connecting portion 42, and then extends downward. Since it has an insertion portion 43 into the human body, and the insertion portion 43 is provided with a heat transfer suppressing recess 44 in an extension portion from the connection portion 42 to the side, the blood glucose level is appropriately calculated. Will be.

That is, the sensor unit 9 of the present embodiment is a vertical plate-like body, and has an upper connecting portion 42 and an insertion portion 43 into the human body that extends laterally from the connecting portion 42 and then extends downward. In the insertion portion 43, the heat transfer suppressing recess 44 is provided in the extension portion from the connection portion 42 to the side. Therefore, first, the heat given to the connection portion 42 is directed to the next side. The heat transfer suppressing recess 44 formed in the extension portion of the above makes it difficult for the heat transfer to be transmitted to the lower insertion portion 43, and as a result, the insertion portion 43 detects an appropriate blood glucose level, and then the control unit 12 appropriately detects the blood level. The blood glucose level will be calculated.

<Characteristic point 5>
Further, in the present embodiment, the sensor unit 9 is housed in the sensor base 4 having an opening 6 on the upper surface, the battery 10 is housed in the sensor base 4, and the opening 6 of the sensor base 4 is housed. A transmitter 5 was attached, and the control unit 12, the communication unit 14, and the storage unit 13 were housed in the transmitter 5. That is, by storing the battery 10 together with the sensor unit 9 in the sensor base 4, a long-life product can be used as the battery 10, and the transmitter 5 containing the control unit 12, the communication unit 14, and the storage unit 13 can be used. By using it repeatedly, it is intended to reduce the financial burden on the user.

Further, an annular gasket 20 provided to maintain a watertight state between the sensor base 4 and the transmitter 5 is formed of an ultraviolet curable resin 59, and further, a connection portion 42 of the sensor unit 9 and a wiring board 40 and a battery are formed. The connection between the 10 and the wiring board 40 is made by using an ultraviolet curable conductive adhesive 52. Since the gasket 20 and the conductive adhesive 52 portion are arranged so as to be separated from each other for a predetermined period while the sensor base 4 is viewed in a plan view, these configurations are completed by a single ultraviolet irradiation operation, and the manufacturing process is completed. Is simplified, and from this point as well, the financial burden on the user can be suppressed.

The present invention is expected to be widely used, for example, as a biological information measuring device for measuring continuous blood glucose.

1 Biological information measuring device 2 Human body 3 Arm 4 Sensor base 5 Transmitter 6 Opening 7 Double-sided tape 8 Skin tape 8a Non-adhesive surface 9 Sensor unit 10 Battery 11 Temperature sensor 12 Control unit 13 Storage unit 14 Communication unit 15 Mobile terminal 16 Board 17 Electrode 18 Electrode 19 Multi-pole contact 20 Gasket 21 Locking part 22 Locking claw body 23 Insertor 24 Cap 25 Flange 26 Flange 27 Guide needle 28 Drying agent 29 Drying agent holding member 30 Rack gear 31 Pinion gear 32 Rack gear 33 Locking claw 34 Hole 35 Gap 36 Finger 37 Claw 38 Removal recess 39 Inclined surface 40 Wiring board 40a Conductive tape 40b Conductive tape 41 Folded pattern 42 Connection part 43 Insertion part 44 Heat transfer suppression recess 45, 46, 47 Electrodes 48, 49, 50 Electrodes 51 Opening 52 Conductive adhesive 53 Gap 54 Gap 55 Indentation 56, 57, 58 Protrusion 59 Resin 60 Protrusion

Claims (4)

Equipped with a sensor unit that is mounted on the sensor base and measures biological information
The sensor unit is a vertical plate-like body, and has a connecting portion provided above and an insertion portion into the human body extending laterally from the connecting portion and extending downward. ,
A heat transfer suppressing recess is provided in an extension portion of the insertion portion from the connection portion to the side.
Biometric information measuring device. The downwardly extending portion of the sensor unit in the insertion portion is inclined downward from above to the side opposite to the connection portion.
The biometric information measuring device according to claim 1. A protrusion that protrudes to the side opposite to the connection portion is provided in a portion of the sensor unit below the insertion portion that is opposite to the connection portion.
The biometric information measuring device according to claim 2. The sensor base has an opening on the upper surface, and the sensor unit is housed inside the sensor base.
A transmitter mounted in the opening of the sensor base and having a control unit connected to the sensor unit, a communication unit connected to the control unit, and a storage unit are further provided.
The biometric information measuring device according to any one of claims 1 to 3.

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