JP2019115400A - Biological information detection device and base member - Google Patents

Abstract

To provide a biological information detection device and a base member that can easily achieve a configuration that hardly damages a living body when extracting a sensor unit from the living body.SOLUTION: A biological information detection device according to the present disclosure includes a tubular sensor unit inserted into a living body, and a device body unit that is indwelled on a living body surface in a state that the sensor unit is inserted into the living body. The device body unit includes a space formation part for forming a storage space for storing the sensor unit inside by deforming or moving, and a moving mechanism for moving the sensor unit toward the storage space.SELECTED DRAWING: Figure 8

Description

  The present disclosure relates to a biological information detection device and a base member.

  Conventionally, a sensor unit is inserted or embedded in the body of a subject such as a patient, and a substance to be measured (for example, glucose, pH, physiologically active substance, protein, etc.) in the blood or body fluid of the subject is detected by the sensor unit. It has been detected.

  Patent Document 1 discloses a body surface sensor used for continuous glucose monitoring (abbreviated as "CGM"). Patent Document 1 discloses a configuration in which a needle is removed from a subject before the body surface sensor is peeled off from the skin.

Japanese Patent Application Publication No. 2016-516472

  The body surface sensor described in Patent Document 1 is configured to be peeled off from the body surface while the needle is inserted in the subject because the body surface sensor is peeled off from the body surface after removing the needle from the subject. In comparison, when the needle is removed, the living body of the subject can be less likely to be damaged. Therefore, the pain felt by the subject at the time of withdrawal of the needle can be reduced.

  However, in the body surface sensor as a living body information detecting device described in Patent Document 1, the needle as the sensor unit is removed by pulling up the elastomer tab. Therefore, for example, the direction in which the elastomeric tab is pulled up may still damage the subject's living body when the needle is removed.

  Then, this indication aims at providing a living body information detecting device and a base member which are easy to realize composition which makes a living body hard to damage when removing a sensor part from a living body.

  A biological information detecting apparatus according to a first aspect of the present invention includes a tubular sensor unit inserted into a living body, and an apparatus main body indwelling on the surface of the living body in a state where the sensor unit is inserted into the living body. A living body information detection device including: a space forming unit that internally accommodates an accommodation space capable of accommodating the sensor unit by deforming or moving the device body unit; And a moving mechanism for moving the sensor unit.

  As one embodiment of the present invention, the movement mechanism starts movement of the sensor unit based on deformation or movement of the space forming unit.

  As one embodiment of the present invention, the movement mechanism includes a biasing member that biases the sensor unit toward the accommodation space.

  As one embodiment of the present invention, the device body portion has a first form in which the housing space is not inside when the space forming portion is deformed or moved, and a second inside in which the housing space is inside. The form can be changed between the form and the form.

  As one embodiment of the present invention, the device body portion deforms or moves the space forming portion in the extension direction of the sensor portion on the proximal end side of the sensor portion to form the first form and the first aspect. The form can be changed between the second form.

  As one embodiment of the present invention, the space forming portion supports the covering portion covering the base end side of the sensor portion, and the covering portion by supporting the covering portion and deforming or moving in the extending direction. A supporting portion movable in the extending direction, and the apparatus main body moves the covering portion in a direction away from the sensor portion by deformation or movement of the supporting portion in the extending direction. Thus, the form can be changed from the first form to the second form.

  As one embodiment of the present invention, the apparatus main body in a state in which the sensor unit is accommodated in the accommodation space is configured to attach the covering unit to the sensor unit by deformation or movement of the support unit in the extension direction. By moving in the approaching direction, the form can be changed from the second form to the first form, and the sensor unit is protruded to the outside of the apparatus main body.

  As one embodiment of the present invention, the covering unit constitutes an operation unit which is pressed when the sensor unit is inserted into the living body.

  As one embodiment of the present invention, the space forming portion can maintain the posture in the case where the device main body is in each of the first form and the second form.

  As a second aspect of the present invention, a base member is a base member of a living body information detection device to which a cover member including a communication device can be attached, and a tubular sensor portion inserted into a living body, and the sensor portion An apparatus main body section indwelling on the surface of the living body in a state of being inserted into the living body, and the apparatus main body section internally contains a housing space capable of housing the sensor section by deformation or movement The space formation part to produce and the movement mechanism which moves the said sensor part toward the said accommodation space are provided.

  According to the present disclosure, it is possible to provide a living body information detection device and a base member that are easy to realize a configuration that makes it difficult for the living body to be damaged when removing the sensor unit from the living body.

It is a perspective view showing the upper surface side of a living body information detecting device as one embodiment. It is a perspective view which shows the lower surface side of the biometric information detection apparatus shown in FIG. It is a perspective view which shows the upper surface side of the biometric information detection apparatus shown in FIG. 1 in the state which accommodated the sensor part in the inside of an apparatus main-body part. It is a perspective view which shows the lower surface side of the biometric information detection apparatus shown in FIG. 1 in the state which accommodated the sensor part in the inside of an apparatus main-body part. It is a top view of the biometric information detection apparatus of the use condition shown in FIG. It is sectional drawing in alignment with the II line of FIG. It is sectional drawing in alignment with the II-II line of FIG. It is sectional drawing which shows the same cross section as FIG. 6 about the biometric information detection apparatus shown in FIG. It is sectional drawing which shows the same cross section as FIG. 7 about the biometric information detection apparatus shown in FIG. It is the disassembled perspective view which decomposed | disassembled the biological information detection apparatus of the unused state. FIG. 11 is a cross-sectional view of a base member and a cover member according to an embodiment shown in FIG. 10. It is a figure which shows the peeling process which peels release paper from the lower surface of the apparatus main-body part of the biological information detection apparatus of an unused state. It is a figure which shows the mounting process of mounting | wearing the biological body surface with the biological information detection apparatus of the unused state from which the release paper was peeled. It is a figure which shows the insertion process which inserts a sensor part in in vivo. It is a figure which shows the accommodation process which accommodates a sensor part in accommodation space. It is a figure which shows the removal process which removes a biometric information detection apparatus from the biological body surface. Only the space forming unit is moved from the apparatus main body in the first form shown in FIG. 6 to the state of the apparatus main body in the second form, and the movement mechanism is the state of the apparatus main body in the first form It is the figure which was left. It is sectional drawing in alignment with the III-III line of FIG. It is a perspective view which shows the upper surface side of the biometric information detection apparatus as a modification. It is a perspective view which shows the lower surface side of the biometric information detection apparatus shown in FIG. It is a perspective view which shows the upper surface side of the biometric information detection apparatus shown in FIG. 15 in the state which accommodated the sensor part in the inside of an apparatus main-body part. It is a perspective view which shows the lower surface side of the biometric information detection apparatus shown in FIG. It is a top view of the biometric information detection apparatus of the use condition shown in FIG. It is sectional drawing which follows the IV-IV line of FIG. FIG. 21 is a cross-sectional view showing the same cross section as in FIG. 20 about the living body information detection apparatus in an unused state shown in FIG. 17; It is the disassembled perspective view which decomposed | disassembled the biological information detection apparatus of the unused state shown in FIG. FIG. 23 is a cross-sectional view of the base member and the cover member shown in FIG. 22. It is sectional drawing in alignment with the VV line | wire of FIG.

  Hereinafter, embodiments of a living body information detection device and a base member according to the present disclosure will be described with reference to FIGS. The same code | symbol is attached | subjected to the member and site | part which are common in each figure.

  FIG. 1 is a perspective view showing the upper surface side of the living body information detection apparatus 1 of the present embodiment. FIG. 2 is a perspective view showing the lower surface side of the living body information detection apparatus 1 of the present embodiment. As shown in FIGS. 1 and 2, the living body information detection apparatus 1 includes a tubular sensor unit 2 and an apparatus main body unit 3.

  The tubular sensor unit 2 is inserted into the living body of a subject. The device body 3 is indwelled on the surface of the living body in a state where the sensor unit 2 is inserted into the living body. Specifically, the device body 3 is indwelled on the surface of the living body in a state where the sensor unit 2 is inserted into the living body and the lower surface 3a is in contact with the surface of the living body. The lower surface 3 a of the device body 3 is provided with a mounting portion capable of maintaining the position of the device body 3 on the living body surface. The mounting portion can be, for example, a sticking portion configured of an adhesive, an adhesive, or the like, which can be stuck to the surface of a living body.

  In the biological information detection apparatus 1 in a state of being attached to a subject, information of the detection result of the substance to be measured by the sensor unit 2 is transmitted to the apparatus main body unit 3. The device body 3 analyzes the information of the received detection result, and transmits the analysis result to an external device such as a display device as necessary. While being attached to a subject, the biological information detection apparatus 1 measures the measured substance in the body fluid of the subject over time. The period in which the biological information detection apparatus 1 is attached to the subject is appropriately determined by the judgment of a doctor or the like for several hours, several days, one week, one month, and the like.

  The substance to be measured is not particularly limited. The detection member of the sensor is selected according to the substance to be measured. The detection member 24 described later in the present embodiment can measure glucose, oxygen, pH, lactic acid and the like in the interstitial fluid.

  FIG. 3 is a perspective view showing the upper surface side of the living body information detection apparatus 1 in a state in which the sensor unit 2 is accommodated inside the apparatus main body unit 3. FIG. 4 is a perspective view showing the lower surface side of the living body information detection apparatus 1 in a state in which the sensor unit 2 is accommodated inside the apparatus main body unit 3. As shown to FIG. 3, FIG. 4, the apparatus main body part 3 can accommodate the sensor part 2 inside.

  In other words, FIG. 1 and FIG. 2 show the biological information detection apparatus 1 in a state in which the sensor unit 2 is inserted in the subject (hereinafter simply referred to as “in use state”), FIG. FIG. 4 shows the biological information detection apparatus 1 in a state in which the sensor unit 2 is not inserted into the subject (hereinafter, referred to simply as “unused state”). The details of the operation in which the biological information detection device 1 changes its form between the used state (see FIGS. 1 and 2) and the unused state (see FIGS. 3 and 4) will be described later (FIGS. 12A to 12E). reference).

  As shown in FIGS. 1 to 4, the device body 3 includes a space forming unit 4 that internally creates an accommodation space 6 capable of accommodating the sensor unit 2 by deformation or movement. Specifically, the device body 3 according to the present embodiment includes the deformable first top wall 22a1 as the space forming unit 4. However, the apparatus main body 3 is not limited to the deformable configuration, and may be a movable space forming unit. . Details of the first top wall 22a1 of the present embodiment will be described later (see FIGS. 6 to 9). In the present embodiment, the accommodation space 6 can be created inside the device body 3 by deforming the first top wall 22a1 as the space forming unit 4. Thus, the sensor unit 2 can be accommodated in the accommodation space 6. That is, it becomes possible to change the form of the living body information detection device 1 from the used state (see FIGS. 1 and 2) to the unused state (see FIGS. 3 and 4).

  FIG. 5 is a top view of the living body information detection apparatus 1 in the use state shown in FIG. 1 and FIG. 6 is a cross-sectional view taken along a line I-I of FIG. 7 is a cross-sectional view taken along the line II-II in FIG. 6 and 7 are cross-sectional views of the biological information detection apparatus 1 in use.

  On the other hand, FIG. 8 is a cross-sectional view showing the same cross section as FIG. 6 for the biological information detection apparatus 1 shown in FIG. 3 and FIG. Further, FIG. 9 is a cross-sectional view showing the same cross section as FIG. 7 for the biological information detection apparatus 1 shown in FIG. 3 and FIG. 4. That is, FIG.8 and FIG.9 is sectional drawing of the biometric information detection apparatus 1 in an unused state.

  As shown in FIGS. 6-9, the space formation part 4 of this embodiment is comprised by the 1st top wall part 22a1. Although the details will be described later, the first top wall portion 22a1 is a part of the pedestal cover member 22 of the base member 11.

  The device body 3 further includes a moving mechanism 5 that moves the sensor unit 2 toward the accommodation space 6. Although the details will be described later, as shown in FIGS. 6 to 9, the moving mechanism 5 of the present embodiment includes the base member 21, the needle holding member 26, the movable member 27 and the biasing member 28 in the base member 11. It is composed of

  By providing the space forming portion 4 in the device body portion 3, it is possible to create the housing space 6 only when the sensor portion 2 is housed inside the device body portion 3. For example, in the use state of the biological information detection device 1 in which the device body 3 is indwelled on the surface of the living body, it is not necessary to secure the accommodation space 6. Therefore, the space formation part 4 can be made into the state which does not produce the accommodation space 6. Thereby, the device body 3 in the state of being indwelled on the surface of the living body can be miniaturized. Therefore, it is possible to realize the small-sized biological information detection device 1 which is less likely to inhibit the daily life of the subject in the use state.

  In addition, the moving mechanism 5 for moving the sensor unit 2 is provided separately from the space forming unit 4 so that the sensor unit 2 is removed from the living body after the creation of the housing space 6. The mechanism for creating the space 6 and the mechanism for moving the sensor unit 2 in the removal direction can be mechanisms independent of each other. That is, when an external force is applied to create an accommodation space 6 that accommodates the used sensor unit 2, the sensor unit 2 can be configured to be difficult to apply the external force. With such a configuration, an external force other than an external force necessary for removal from the inside of the living body can hardly act on the sensor unit 2. That is, when removing a sensor part from a living body, it can be considered as composition which does not make damage to a living body difficult.

  Furthermore, the sensor unit 2 can be removed from the living body surface after the sensor unit 2 is removed from the living body and accommodated in the accommodation space 6, that is, after the biological information detecting device 1 is in the same state as the unused state. Therefore, as compared with the case where the biological information detection apparatus 1 is removed from the surface of the living body while the sensor unit 2 is inserted in the living body, the biological information detection apparatus 1 detects biological information prior to removal of the biological information detection apparatus 1 By being housed in the device 1, it is possible to suppress damage to the subject by the sensor unit 2 accompanying removal of the biological information detection device 1. As a result, the pain felt by the subject at the time of removing the sensor unit 2 can be reduced.

  Furthermore, in order to remove the biological information detection apparatus 1 from the surface of the living body after putting it in the same state as the unused state, the sensor unit 2 does not protrude from the apparatus main body 3 after removing the biological information detection apparatus 1 from the living body surface It can be done. Therefore, it is possible to suppress an operator of the biological information detection apparatus 1 such as a subject, a doctor, or a nurse from touching the sensor unit 2 after use. Therefore, the operator can be prevented from being damaged by the tip of the sensor unit 2 or touching the body fluid of the subject.

  Further, in the device body 3 of the present embodiment, the first top wall 22a1 as the space forming portion 4 is deformed so that the first form in which the accommodation space 6 is not inside and the accommodation space 6 are inside The form can be changed between the second form. That is, in the present embodiment, the device body 3 in the living body information detection device 1 in the use state (see FIGS. 1, 2, 6, and 7) is in the first form. Further, in the present embodiment, the device body 3 in the biological information detection device 1 in the unused state (see FIGS. 3, 4, 8 and 9) is in the second form.

  The above-mentioned "there is no accommodation space 6 inside" means the state which there is no space which can accommodate the sensor part 2 inside, and can not accommodate the sensor part 2 inside. Moreover, the above-mentioned "the accommodation space 6 is inside" means that the space which can accommodate the sensor part 2 exists inside, and the sensor part 2 can be accommodated inside. Specifically, when the device body 3 of the present embodiment is in the first form (see FIG. 6), the extension direction A of the sensor unit 2 is applied to an internal space X described later inside the device body 3. In the above, the state in which the part more than the full length in the extension direction A of the sensor part 2 is not formed is meant. In the case where the device body 3 of the present embodiment is in the second mode (see FIG. 8), in the extending direction A of the sensor unit 2 in an internal space X described later inside the device body 3, It means a state in which a portion of the sensor unit 2 that is longer than or equal to the full length in the extension direction A is formed.

  Not only the form change that creates the accommodation space 6 but also the accommodation space 6 from the state in which the accommodation space 6 exists by configuring the apparatus main body 3 to be capable of the form change between the first form and the second form described above. The form change to the state without 6 is also possible. That is, not only the form change from the first form to the second form, but also the form change from the second form to the first form is possible for the device body 3 of the present embodiment. Therefore, the first top wall 22a1 as the space forming unit 4 is used as an operation unit for performing the operation of inserting the sensor unit 2 into the living body and removing the sensor unit 2 from the living body. As in the present embodiment, the space forming portion 4 of the device body 3 can be easily configured to have other functions other than creating the accommodation space 6. Although the details will be described later, the covering portion 4a (see FIGS. 6 to 9) of the first top wall portion 22a1 of the present embodiment is used as the space forming portion 4 that creates the accommodation space 6. In addition, the covering unit 4a is also used as an operation unit for manually inserting the sensor unit 2 into the living body and removing the sensor unit 2 from the living body.

  Furthermore, in the device main body 3 of the present embodiment, the first top wall 22a1 as the space forming unit 4 is deformed in the extending direction A of the sensor unit 2 on the proximal end side of the sensor unit 2. Thereby, the apparatus main body 3 of the present embodiment can change the form between the first form and the second form. That is, the space created directly on the base end side of the sensor unit 2 can be made the housing space 6 of the sensor unit 2 by the deformation of the space forming unit 4. In other words, the form change between the first form and the second form of the device body 3 can be realized with a simple configuration. In addition, when the space forming unit 4 is used as an operation unit that exposes the outside by deforming the space forming unit 4 at a position on the base end side of the sensor unit 2, the operation of removing the sensor unit 2 is an operation. Since the user can visually recognize from the user, the operator can easily know the insertion / non-insertion of the sensor unit 2 if the position and the shape of the space forming unit 4 are confirmed.

  Hereinafter, further details of the living body information detection apparatus 1 of the present embodiment will be described.

  FIG. 10 is an exploded perspective view of the biological information detection apparatus 1 in an unused state (FIG. 3, FIG. 4, FIG. 8, FIG. 9). As shown in FIG. 10, the biological information detection apparatus 1 of the present embodiment includes a base member 11 and a cover member 12. Although details will be described later, the sensor unit 2 of the present embodiment is configured by a part of the base member 11. Further, the device body 3 of the present embodiment is configured by a part of the base member 11 and the whole of the cover member 12. 11 is a cross-sectional view of each of the base member 11 and the cover member 12 shown in FIG.

  First, the details of the base member 11 and the cover member 12 of the living body information detection device 1 will be described mainly with reference to FIGS. 10 and 11.

<Base member 11>
As shown in FIGS. 10 and 11, the base member 11 of the present embodiment includes a pedestal member 21, a pedestal cover member 22, a valve body 23, a detection member 24, a needle member 25, and a needle holding member 26. , A movable member 27, a biasing member 28, and a circuit board 29. The sensor unit 2 of the present embodiment is configured of a detection member 24 and a needle member 25. The extending direction A of the sensor unit 2 of the present embodiment is the same as the extending direction B of the needle member 25.

[Pedestal member 21]
As shown to FIG. 10, FIG. 11, the base member 21 is comprised by the rectangular-plate-shaped plate. The surface on one side of the base member 21 in the thickness direction (the same direction as the extending direction B of the needle member 25 in the biological information detection apparatus 1 of this embodiment) is the lower surface 3a of the device body 3 of the biological information detection apparatus 1 It is a biological contact surface which comprises FIG. 2, FIG. 4). The lower surface 3a is provided with a sticking part for sticking to a living body. Further, as shown in FIGS. 10 and 11, the other surface of the base member 21 in the thickness direction is a mounting surface to which the base cover member 22 is attached.

  As shown in FIG. 11, a cylindrical receiving portion 21 a for receiving a needle holding member 26 described later is provided on the mounting surface side of the pedestal member 21. A through hole 21a1 penetrating in the thickness direction is formed in the pedestal member 21 at the position of the above-mentioned receiving portion 21a.

  As shown in FIG. 10, the base member 11 may be engaged with the cover member 12 described later by providing the outer edge convex portion 21 f along the side surface of the outer edge portion of the pedestal member 21. At this time, the base notch 21b may be provided as a gap for removing the moisture which has entered inside during use. Alternatively, the base member 11 and the cover member 12 may be engaged by engagement between the claw portion provided on the housing 44 of the cover member 12 and the claw receiving portion provided on the base member 11. .

  As shown in FIGS. 10 and 11, a seal frame portion 21c surrounding the lower end of a peripheral frame portion 22b of the pedestal cover member 22 described later is formed on the mounting surface of the pedestal member 21.

  As shown in FIG. 11, on the mounting surface of the pedestal member 21, an annular protrusion 21 d that protrudes upward is provided at a position surrounding the receiving portion 21 a described above.

  Examples of the material of the base member 21 include resin materials. As this resin material, for example, ABS resin, AS resin, polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyvinylidene chloride resin, polyphenylene oxide, thermoplastic polyurethane, polymethylene methacrylate, polyoxyethylene, fluorine resin, polycarbonate, polyamide Examples thereof include thermoplastic resins used in injection molding of acetal resins, acrylic resins, polyethylene terephthalate and the like, and thermosetting resins such as phenol resins, epoxy resins, silicone resins, unsaturated polyesters and the like.

[Base cover member 22]
As shown in FIG. 11, the pedestal cover member 22 covers the upper surface of the pedestal member 21 while holding the internal space X with the upper surface of the pedestal member 21. A detection member 24, a needle member 25, a needle holding member 26, a movable member 27, a biasing member 28, and a circuit board 29 are provided in the internal space X between the pedestal member 21 and the pedestal cover member 22. Is housed. Although details will be described later, the detection member 24 and the needle member 25 constituting the sensor unit 2 can be moved by the moving mechanism 5, and the apparatus main body 3 (see FIGS. 1 to 4) through the through hole 21a1 of the pedestal member 21. It can be projected from the living body contact surface (the lower surface in FIG. 11) of the pedestal member 21 as the lower surface 3a of.

  In the present embodiment, the housing space 6 capable of housing the detection member 24 and the needle member 25 constituting the sensor unit 2 is constituted by the above-mentioned internal space X.

  As shown in FIG. 11, the pedestal cover member 22 of the present embodiment is provided between the top wall portion 22 a disposed opposite to the upper surface of the pedestal member 21 and the attachment surface of the top wall portion 22 a and the pedestal member 21. And a peripheral frame 22 b extending in the thickness direction of the pedestal member 21.

  More specifically, as shown in FIG. 11, the pedestal cover member 22 of the present embodiment includes a first cover portion 30 and a second cover portion 31. The first cover portion 30 is constituted by the first top wall portion 22a1 and the first peripheral frame portion 22b1, and divides the first inner space X1 between itself and the pedestal member 21. The second cover portion 31 is constituted by the second top wall portion 22a2 and the second peripheral frame portion 22b2, and divides the second inner space X2 between the second cover portion 31 and the pedestal member 21. The detection member 24, the needle member 25, the needle holding member 26, the movable member 27, the biasing member 28, and a part of the circuit board 29 are accommodated in the first inner space X1. The other part of the circuit board 29 is accommodated in the second inner space X2. The other part of the circuit board 29 is provided with a terminal part 29 a as a contact part with the circuit board 43 of the cover member 12 described later. The first cover portion 30 of the present embodiment protrudes from the second cover portion 31 to the mounting surface side (upper side in FIG. 11) of the base member 21 in the thickness direction.

  The first top wall 22a1 of the first cover 30 of the present embodiment has a substantially circular outer edge when viewed in the thickness direction of the pedestal member 21 (see FIG. 5). The first top wall portion 22a1 of the first cover portion 30 of the present embodiment is configured to be deformable and extendable and contractible in the thickness direction of the pedestal member 21.

  The first top wall portion 22a1 of the present embodiment constitutes a space forming portion 4 which internally creates an accommodation space 6 capable of accommodating the sensor portion 2 by being deformed. That is, the apparatus main body 3 of the present embodiment has a form between the first form (see FIG. 6 etc.) and the second form (see FIG. 8 etc.) by the first top wall 22a 1 being deformed. To change. Furthermore, in the first top wall 22a1 of the space forming unit 4 of the present embodiment, the device body 3 (see FIG. 1 etc.) has a first form (see FIG. 6 etc.) and a second form (FIG. 8) (See etc.) In each case, the attitude can be maintained. In other words, the first top wall 22a1 can maintain the first posture in the case of the first embodiment and the second posture in the case of the second embodiment. . Hereinafter, the details of the configuration of the first top wall portion 22a1 of the present embodiment will be described.

  As shown to FIG. 10, FIG. 11, 1st top wall part 22a1 which comprises the space formation part 4 of this embodiment is provided with the cover part 4a and the support part 4b. The covering portion 4 a covers the proximal end sides of the detection member 24 as the sensor portion 2 and the needle member 25. The covering part 4a of this embodiment comprises the operation part pressed when inserting the sensor part 2 in the inside of a living body. The supporting portion 4 b supports the covering portion 4 a and moves or deforms in the extending direction A of the sensor portion 2 (the same direction as the extending direction B of the needle member 25) to extend the covering portion 4 a. It can move in the existing direction A. The support portion 4b of the present embodiment is a side wall that supports the covering portion 4a, and deforms in the extending direction A of the sensor portion 2 with the pressing of the covering portion 4a.

  More specifically, the covering portion 4a of the present embodiment is formed of a disk-shaped plate portion. As shown in FIG. 11, at the center of the lower surface of the covering portion 4a, a pressing projection 4a1 for pressing a needle holding member 26 described later is provided.

  Further, as shown in FIGS. 10 and 11, the support portion 4b of the present embodiment is constituted by a cylindrical portion which is continuous with the outer edge portion of the covering portion 4a and which protrudes in the thickness direction of the covering portion 4a. More specifically, the support portion 4b of the present embodiment is continuous with the outer edge portion of the covering portion 4a, and has a cylindrical portion 4b1 protruding in the thickness direction of the covering portion 4a, and the cylindrical portion 4b1 opposite to the covering portion 4a. The tapered cylindrical portion 4b2 is continuous on the side and increases in diameter as it is separated from the covering portion 4a in the thickness direction of the covering portion 4a, and is continuous on the opposite side of the tapered cylindrical portion 4b2 from the cylindrical portion 4b1 and goes radially outward And an annular flange portion 4b3 that protrudes. The covering portion 4a and the supporting portion 4b of the present embodiment are integrally formed of an elastic material such as rubber or elastomer. Therefore, the first top wall 22a1 of the present embodiment is configured to be elastically deformable.

  As shown in FIG. 11, the cylindrical portion 4b1 of the present embodiment is formed to have a substantially uniform thickness. The cylindrical portion 4b1 has a substantially uniform inner and outer diameter regardless of the position in the axial direction (in the present embodiment, the same direction as the thickness direction of the covering portion 4a).

  As shown in FIG. 11, the tapered cylindrical portion 4b2 of the present embodiment is a first annular thin-walled portion thinner than the other portions in a portion continuous with the cylindrical portion 4b1 and a portion continuous with the annular flange portion 4b3. A portion 80 and a second annular thin portion 81 are provided. The tapered cylindrical portion 4b2 has a thickness substantially equal to that of the above-mentioned cylindrical portion 4b1 except for the first annular thin portion 80 and the second annular thin portion 81. Therefore, tapered cylindrical portion 4b2 has a substantially uniform thickness at a position other than first annular thin portion 80 and second annular thin portion 81, and as it is separated from covering portion 4a in the thickness direction of covering portion 4a. The inner diameter and the outer diameter are both expanded.

  As shown in FIG. 11, the annular flange 4b3 is attached to a first peripheral frame 22b1 described later. The method of attaching the annular flange portion 4b3 to the first peripheral frame portion 22b1 is not particularly limited. For example, it is preferable from the viewpoint of production when it is integrally molded by two-color molding or the like. Not only the method of attaching the annular flange portion 4b3 and the first peripheral frame portion 22b1, but also the method of attaching the pedestal member 21 and the pedestal cover member 22 may be integrally formed by, for example, two-color molding. It is preferable from the above point.

  With such a first top wall portion 22a1, the covering portion 4a can be moved in the thickness direction by the deformation of the support portion 4b. The first ceiling wall portion 22a1 of the present embodiment is in a natural state in which the support portion 4b extends in a cylindrical shape, that is, the states shown in FIG. 10 and FIG. Therefore, the first top wall 22a1 can maintain the posture shown in FIGS. 10 and 11 in a state where no external force is applied. That is, when the device body 3 is in the second mode (see FIGS. 8 and 9), the first top wall 22a1 of the present embodiment is in a natural state and can maintain its posture.

  On the other hand, the first top wall portion 22a1 of the present embodiment can be deformed into a state in which the support portion 4b is bent and the cylindrical portion 4b1 and the tapered cylindrical portion 4b2 overlap in the radial direction. In this embodiment, by deforming the first top wall 22a1 in this manner, the apparatus main body 3 is changed from the second form (see FIGS. 8 and 9) to the first form (see FIGS. 6 and 7). It can be changed in shape.

  Specifically, when the covering portion 4a is pushed downward from the state shown in FIGS. 8 and 9, the cylindrical portion 4b1 is also pushed downward following the covering portion 4a. When the cylindrical portion 4b1 is pressed downward, the support portion 4b is bent at the positions of the first annular thin portion 80 and the second annular thin portion 81. By bending the second annular thin portion 81, the tapered cylindrical portion 4b2 is deformed so as to enter the first peripheral frame portion 22b1 with the position of the annular flange portion 4b3 as a fulcrum. Further, by bending the first annular thin portion 80 together with the second annular thin portion 81, the cylindrical portion 4b1 moves inward in the radial direction of the tapered cylindrical portion 4b2 and moves so as to overlap the tapered cylindrical portion 4b2 in the radial direction. In this manner, the first top wall 22a1 can be deformed into the state shown in FIGS. 6 and 7, that is, the device body 3 into the first form (see FIGS. 6 and 7). In the state shown in FIGS. 6 and 7, the cylindrical portion 4b1, the tapered cylindrical portion 4b2, and the first peripheral frame portion 22b1, which will be described later, are in a state of being radially overlapped in a bellows shape.

  The first top wall 22a1 of the present embodiment can maintain the posture even when the device body 3 is in the first mode (see FIGS. 6 and 7).

  Specifically, in the first top wall 22a1 in the state shown in FIG. 6, although the restoration energy is stored in the folded back tapered cylinder 4b2, the restoration force is a force directed radially inward. . That is, the restoring force of the tapered cylindrical portion 4b2 is used as a compressive force that pushes the cylindrical portion 4b1 inward from the radial direction so as to retain the cylindrical portion 4b1 in the tapered cylindrical portion 4b2. .

  Further, since the portion bent between the cylindrical portion 4b1 and the tapered cylindrical portion 4b2 is constituted by the first annular thin portion 80 and the second annular thin portion 81 which are easily bent, the first annular thin portion 80 and the first annular thin portion 80 The recovery energy stored in the two annular thin portions 81 is also small. Therefore, the first annular thin portion 80 and the second annular thin portion 81 also do not store restoration energy to the extent that the cylindrical portion 4 b 1 is pushed upward.

  Furthermore, although the cylindrical portion 4b1 is pressed upward by the restoring force of the biasing member 28 described later, the force for stabilizing the posture of the first top wall portion 22a1 is larger. Therefore, the biasing member 28 is maintained in the compressed state in which the restoring force is maintained.

  As described above, in the first ceiling wall 22a1 as the space forming unit 4 of the present embodiment, the device body 3 is not only the second form (see FIG. 8 etc.), but the device body 3 is the first form. Even in the case of (see FIG. 6 etc.), the posture can be maintained.

  Furthermore, as shown in FIG. 6 and FIG. 7, when the device body 3 is in the first form, that is, when the biological information detection device 1 is in use, the first top wall 22a1 of this embodiment The first top wall 22a1 enters the first surrounding frame 22b1. In other words, when the biological information detection device 1 is in use, the first top wall 22a1 does not protrude upward with respect to the first surrounding frame 22b1. Therefore, in the living body information detection apparatus 1 in the use state, an external force that pulls up the cylindrical portion 4b1 with respect to the first top wall portion 22a1 is not easily applied. As a result, in the living body information detection apparatus 1 in the use state, the first top wall portion 22a1 in the pushed-in state is suppressed from being unintentionally stretched and deformed, that is, the erroneous operation is suppressed.

  As shown in FIG. 10, the first peripheral frame 22b1 of the first cover 30 of the present embodiment has a substantially cylindrical shape. The annular flange 4b3 of the first ceiling wall 22a1 described above is attached to one end of the first peripheral frame 22b1.

  As shown in FIG. 11, the second top wall 22a2 of the second cover 31 of the present embodiment is provided so as to protrude radially outward from the outer wall of the first surrounding frame 22b1. The second top wall 22a2 faces the mounting surface of the pedestal member 21. The notch part 32 is formed in a part of circumferential direction among the lower ends by the side of the base member 21 of 1st surrounding frame part 22 b1 mentioned above. The second top wall 22a2 protrudes radially outward from the first peripheral frame 22b1 at the position of the notch 32. In other words, the first cover 30 and the second cover 31 communicate with each other through the above-described notch 32.

  As shown in FIGS. 10 and 11, a first through hole 33 communicating with the second internal space X2 from the outside of the base member 11 is formed in the second top wall portion 22a2. Although the details will be described later, when the cover member 12 is attached to the base member 11, the terminal portion 29a of the electric circuit of the circuit board 29 of the base member 11 and the circuit of the cover member 12 through the first through hole 33. The terminal portion 43a of the electric circuit of the substrate 43 comes into contact and conducts (see FIGS. 6 and 8). Of the upper surface of the second top wall 22a2, at the edge of the first through hole 33, a seal frame 33a is provided to enhance the sealing property with the cover member 12 when it is combined with the cover member 12 described later. There is. The seal frame 33a is preferably made of an elastic material.

  Further, as shown in FIG. 10, the second ceiling wall 22a2 is formed with a second through hole 34 communicating with the second internal space X2 (see FIG. 11). Although details will be described later, a valve body 23 is disposed in the second through hole 34. Air can be discharged to the outside from the internal space X (see FIG. 11) constituted by the first internal space X1 and the second internal space X2 by the valve body 23 (see FIG. 14).

  As shown in FIGS. 10 and 11, the second peripheral frame 22 b 2 of the second cover 31 according to the present embodiment is a pedestal 21 from the outer edge of the second top wall 22 a 2 toward the mounting surface of the pedestal 21. Extends in the thickness direction of the The second peripheral frame 22b2 surrounds the periphery other than the position of the notch 32 described above.

  As shown in FIGS. 10 and 11, the lower ends of the first peripheral frame 22b1 and the second peripheral frame 22b2 of the pedestal cover member 22 are surrounded by the seal frame 21c provided on the mounting surface of the pedestal member 21. ing. Thereby, the sealability between the pedestal cover member 22 and the pedestal member 21 can be enhanced, and entry of liquid or the like into the internal space X can be suppressed.

  The deformable first top wall 22a1 of the pedestal cover member 22 preferably has flexibility or elasticity. As a material of the first top wall 22a1, for example, natural rubber, isoprene rubber, butadiene rubber, styrene-butadiene rubber, nitrile rubber, chloroprene rubber, butyl rubber, acrylic rubber, ethylene-propylene rubber, hydrin rubber, urethane rubber, silicone rubber, Various thermal materials such as various rubber materials such as fluorine rubber, styrene type, polyolefin type, polyvinyl chloride type, polyurethane type, polyester type, polyamide type, polybutadiene type, trans polyisoprene type, fluoro rubber type, chlorinated polyethylene type etc. A plastic elastomer may be mentioned, and one or two or more of these may be mixed.

  As the material of the pedestal cover member 22 other than the first top wall portion 22a1, for example, the same material as the above-described material exemplified as the material of the pedestal member 21 can be used.

[Valve body 23]
As shown in FIG. 10, the valve body 23 closes the second through hole 34 of the pedestal cover member 22 described above, and can elastically discharge the air in the internal space X described above to the outside by elastically deforming. . Details of this will be described later (see FIG. 14).

  As a material of the valve body 23, the same material as the above-mentioned material illustrated as a material of the 1st top wall part 22a1 can be used, for example.

[Detection member 24]
As shown in FIG. 11, the detection member 24 is a wire electrode extending linearly, and along the extending direction B of the needle member 25 (the same direction as the extending direction A of the sensor unit 2), the needle member Extends into 25. The detection member 24 includes a conductive core material, a detection part configured to detect a substance to be measured in contact with the sample on the outer wall of the core material, and a protection part for limiting transmission of the interference substance. And an insulating part coated with an insulating material. The detection unit is a working electrode that detects a change in electrical characteristics with respect to the substance to be measured, and is formed on the surface of the core using a thin film forming means such as spray coating, dipping, electrolytic polymerization, or sputtering. A plurality of detection members 24 may be disposed in the needle member 25. Specifically, in the present embodiment, three detection members 24 (a working electrode, a reference electrode, a counter electrode) are disposed in the needle member 25. The detection member 24 is suitably selected by the measuring method of to-be-measured substance, and the number of the detection members 24 arrange | positioned in the needle member 25 is not specifically limited, either.

  The detection member 24 is connected to an electric circuit formed on the circuit board 29. Therefore, an electrical signal corresponding to the amount of the substance to be measured detected in the living body by the detection member 24 is transmitted to the communication device 42 of the cover member 12 described later through the electric circuit on the circuit board 29.

  The outer diameter of the detection member 24 is preferably 0.02 mm to 0.2 mm. When the outer diameter of the detection member is increased, the invasiveness at the time of insertion into a living body is increased.

[Needle member 25]
As shown in FIG. 11, the needle member 25 accommodates the detection member 24 described above, and is inserted and indwelled in the living body together with the detection member 24. A blade surface is formed at the tip of the needle member 25 and is less likely to be bent as compared with the detection member 24. That is, by inserting the needle member 25 from the surface of the living body in a state where the detection member 24 is accommodated in the needle member 25, the detection member 24 can be easily inserted into the living body.

  In the state where the detection member 24 and the needle member 25 are indwelled in the living body, the body fluid flows into the needle member 25 from an opening such as the tip end opening of the needle member 25. The body fluid flowing into the needle member 25 contacts the detection member 24. Thereby, the substance to be measured in the living body is detected by the detection member 24.

  The diameter of the needle member 25 is, for example, 0.2 mm to 1.2 mm (corresponding to the outer diameter of 33 to 18 gauge) at the maximum outer diameter, and its length is 1 mm to 10 mm, preferably 3 to 6 mm. is there. The thickness of the needle member 25 is set, for example, in the range of 0.02 mm to 0.15 mm.

  As a material of needle member 25, metal materials, such as stainless steel, aluminum, aluminum alloy, titanium, and a titanium alloy, are used, for example.

[Needle holding member 26]
As shown in FIG. 11, the needle holding member 26 supports the proximal end of the needle member 25. Further, the needle holding member 26 is formed with a through hole 35 which penetrates in the extending direction B of the needle member 25. Therefore, the detection member 24 located in the needle member 25 penetrates the needle holding member 26 through the through hole 35, is connected to the circuit board 29, and is electrically connected to the electric circuit on the circuit board 29.

  The needle holding member 26 of the present embodiment has an axial direction of the movable member 27 (the extending direction A of the sensor unit 2 in the biological information detection apparatus 1 of the present embodiment, the needle member 25 Movably supported in the same direction as the extension direction B of Specifically, the needle holding member 26 of the present embodiment includes a main body portion 26a located in a movable member 27 described later which is formed of a cylindrical body, and an arm portion 26b projecting radially outward from the main body portion 26a. And. The arm portion 26 b protrudes outward in the radial direction of the movable member 27 through an opening 27 b (see FIG. 9) formed in a cylindrical body constituting the movable member 27 described later. Therefore, the needle holding member 26 is axially movable with respect to the movable member 27 within a range in which the arm portion 26 b can move within the opening 27 b.

  As a material of the needle holding member 26, for example, the same material as the above-described material exemplified as the material of the pedestal member 21 can be used.

  Further, a seal member 92 is attached to the surface on the tip end side (lower side in FIG. 11) of the sensor unit 2 in the extension direction A of the main body portion 26a of the needle holding member 26 of the present embodiment. The seal member 92 is formed of the needle member 25 between the receiving portion 21a of the pedestal member 21 and the main body portion 26a of the needle holding member 26 when the device body 3 is in the first form (see FIG. 6). Seal around the radial direction. Thereby, it can suppress that the sweat etc. which penetrate | invade from the through-hole 21a1 enter into the internal space X. The seal member 92 can be formed of, for example, a urethane foam.

[Movable member 27]
As shown in FIG. 11, the movable member 27 of the present embodiment supports the needle holding member 26 so as to be movable, and is also supported so as to be movable relative to the pedestal member 21. The movable member 27 of the present embodiment is formed of a cylindrical body. The movable member 27 extends in the axial direction (in the living body information detection apparatus 1 of the present embodiment, the extending direction A of the sensor unit 2 and the extending direction of the needle member 25) with respect to the annular protrusion 21 d of the pedestal member 21 described above. Movably supported in the same direction as B). The movable member 27 is disposed in the annular projection 21 d in a state where the movable member 27 radially overlaps the annular projection 21 d in the radial direction. The axial length of the region where the movable member 27 and the annular projection 21 d overlap in the radial direction can be varied. That is, the movable member 27 is axially movable with respect to the annular protrusion 21d by the telescopic mechanism. At the lower end of the movable member 27, a convex portion 27a that protrudes outward in the radial direction is provided. The convex portion 27a is inserted into an opening portion provided on the annular projection 21d and extending to the upper surface of the pedestal member 21. Therefore, the movable range in the axial direction of the movable member 27 coincides with the range in which the convex portion 27a can move in the axial direction within the opening provided in the annular projection 21d. Specifically, the position where the lower end of the convex portion 27a constituting the lower end of the movable member 27 abuts on the upper surface of the pedestal member 21, and the upper end surface 21d1 where the upper end of the convex portion 27a divides the opening of the annular projection 21d The movable member 27 is axially movable relative to the annular projection 21d between the contact position.

  Further, an opening 27 b (see FIG. 9) is formed in the circumferential wall of the cylindrical body that constitutes the movable member 27. As described above, the arm portion 26b of the needle holding member 26 protrudes outward in the radial direction of the movable member 27 through the opening 27b.

  As a material of the movable member 27, for example, the same material as the above-described material exemplified as the material of the pedestal member 21 can be used.

[Biasing member 28]
As shown in FIG. 11, the biasing member 28 of the present embodiment moves the needle holding member 26 toward the proximal end side of the extending direction B of the needle member 25 (the same direction as the extending direction A of the sensor unit 2). Turn on. The biasing member 28 of the present embodiment is constituted by a coil spring. The biasing member 28 extends the extending direction B of the needle member 25 between the mounting surface of the base member 21 and a portion of the arm 26 b of the needle holding member 26 which protrudes radially outward relative to the movable member 27. It is arranged to be extensible. Therefore, when the total length of the annular projection 21d of the base member 21, the needle holding member 26, and the needle member 25 of the movable member 27 in the extending direction B is contracted and shortened, the coil spring as the biasing member 28 is compressed. And biases the needle holding member 26 to the proximal end side of the needle member 25. Therefore, in a state where an external force against the biasing force of the biasing member 28 is not applied, the needle holding member 26 is pressed by the biasing member 28 toward the base end of the needle member 25, and the annular protrusion 21 d of the pedestal member 21, The state in which the total length in the extending direction B of the needle holding member 26 and the movable member 27 is the longest is maintained. That is, in the state where the housing space 6 is created in the inner space X, the needle member 25 is maintained in the state of being housed in the housing space 6 by the biasing force of the biasing member 28.

[Circuit board 29]
As shown in FIGS. 10 and 11, an electric circuit is formed on the circuit board 29, and the electric circuit is electrically connected to the detection member 24. The electric signal of the substance to be measured detected by the detection member 24 is transmitted to the communication device 42 of the cover member 12 described later through the electric circuit of the circuit board 29.

<Cover member 12>
As shown in FIGS. 10 and 11, the cover member 12 includes an electricity storage member 41, a communication device 42, a circuit board 43, and a housing 44.

[Storage member 41]
The storage member 41 of the present embodiment is a button battery, but any storage member 41 capable of supplying power for operating the communication device 42 may be used, and the storage battery 41 is not limited to the button battery.

[Communication device 42]
As shown in FIG. 11, the communication device 42 includes a control unit 42a and a transmission unit 42b. The control unit 42a is configured by a processor, a memory, and the like, and analyzes information of the substance to be measured detected by the detection member 24. The transmitting unit 42b transmits the analysis result of the control unit 42a to an external device such as a smartphone or a computer according to an instruction from the control unit 42a. As a result, the subject himself or a medical worker such as a doctor can confirm the measurement result by the biological information detection apparatus 1 through the external device.

[Circuit board 43]
As shown in FIGS. 10 and 11, an electric circuit connected to the communication device 42 is formed on the circuit board 43. Further, the electric circuit on the circuit board 43 is provided with a terminal portion 43a that comes in contact with the terminal portion 29a of the electric circuit on the circuit board 29 of the base member 11 when mounted on the above-described base member 11. ing. Therefore, in a state where the base member 11 and the cover member 12 are combined, the detection member 24 is electrically connected to the communication device 42 through the electric circuit of the circuit board 29 and the electric circuit of the circuit board 43.

  As shown in FIG. 11, in the present embodiment, the storage member 41 and the communication device 42 are disposed on both sides of the circuit board 43. More specifically, on one surface in the thickness direction of circuit board 43 (in the same direction as extension direction A of sensor unit 2 and extension direction B of needle member 25 in biological information detection apparatus 1 of the present embodiment) The storage member 41 is attached, and the communication device 42 is attached to the other surface. Further, the terminal portion 43a is attached at a position different from the position where the communication device 42 is attached on the surface where the communication device 42 is attached.

[Housing 44]
The housing 44 is an exterior member of the cover member 12 and is also an exterior member of the living body information detection apparatus 1 formed by attaching the cover member 12 to the base member 11.

  The housing 44 of the present embodiment has a substantially rectangular outer shape in top view (see FIG. 5). As shown in FIG. 11, the housing 44 penetrates in the thickness direction (in the biological information detection apparatus 1 of the present embodiment, the same direction as the extending direction A of the sensor unit 2 and the extending direction B of the needle member 25). A cylindrical housing opening 44a is formed which can accommodate the first cover portion 30 of the pedestal cover member 22 of the base member 11 described above. Further, the housing 44 covers the electrical storage member 41, the communication device 42 and the circuit board 43 other than the terminal portion 43a of the electric circuit of the circuit board 43 described above. In other words, the housing 44 defines a hollow portion for storing the storage member 41, the communication device 42, and the circuit board 43, and the hollow portion communicates with the outside at a position of the communication port 44e. The terminal portion 43a of the electric circuit is disposed. The terminal portion 43a protrudes to the outside from the communication port 44e. The communication port 44 e described above is formed on the lower surface of the housing 44. Therefore, the terminal 43a of the electric circuit of the circuit board 43 is configured to be connectable with the terminal 29a of the electric circuit of the circuit board 29 of the base member 11 at the position of the communication port 44e on the lower surface of the housing 44.

  More specifically, as shown in FIG. 11, the housing 44 of the present embodiment includes an upper surface plate portion 44b, a lower surface plate portion 44c, and a peripheral side plate portion 44d, and the hollow portion described above is divided therein. There is. In the hollow portion, the circuit board 43 extends in parallel with the upper surface plate portion 44b and the lower surface plate portion 44c. The storage member 41 of the present embodiment is disposed on the upper surface plate portion 44b side with respect to the circuit board 43, and the communication device 42 and the terminal portion 43a of the present embodiment are lower surface plate portions with respect to the circuit substrate 43. It is arranged on the 44c side. The above-mentioned communication port 44e is formed in the lower surface plate portion 44c, and the terminal portion 43a protrudes to the outside of the hollow portion through the communication port 44e.

  When such a cover member 12 is attached to the base member 11, the terminal portion 43a protruding from the communication port 44e formed on the lower surface of the housing 44 enters the first through hole 33 of the base member 11, and the base member It contacts with the terminal part 29a of the electric circuit of 11, and conducts.

  Further, at the same time when the terminal portion 43a of the cover member 12 enters the first through hole 33, the seal frame 33a of the base member 11 enters the communication port 44e so as to surround the terminal portion 43a and divides the communication port 44e. The inner wall of the lower surface plate portion 44c is closely attached and sealed (see FIG. 6 and FIG. 8). Thereby, in a state where the terminal portion 43a of the electric circuit of the circuit board 43 and the terminal portion 29a of the electric circuit of the circuit board 29 are in contact with each other, sealing between the communication port 44e and the first through hole 33 can be performed. it can. Therefore, in a state where the electric circuit of the base member 11 and the electric circuit of the cover member 12 are in conduction, the hollow portion of the housing 44 or the internal space X of the base member 11 through the communication port 44e and the first through hole 33 It can suppress that a liquid etc. approach into (refer FIG. 11).

  Further, when the cover member 12 is attached to the base member 11, the first cover portion 30 of the pedestal cover member 22 is accommodated in the accommodation opening 44 a of the housing 44. Then, when the first top wall 22a1 of the first cover 30 is in the extended state, that is, when the device body 3 is in the second mode (see FIG. 8 etc.), the first cover 30 has a housing opening. It projects through the upper side of the housing 44 through the hole 44a. On the other hand, when the first top wall 22a1 of the first cover 30 is in a contracted state, that is, when the apparatus main body 3 is in the first mode (see FIG. 6 etc.), the first cover 30 is , And the upper surface of the housing 44. In other words, as shown in FIG. 8, the cover 4 a of the first top wall 22 a 1, which constitutes the operation unit in the present embodiment, is configured by the housing 44 with the device body 3 in the second form. It projects more outward than the outer wall. On the other hand, as shown in FIG. 6, the covering portion 4a of the first top wall portion 22a1, which constitutes the operation portion in the present embodiment, is constituted by the housing 44 with the device body 3 in the first form. Do not project outward beyond the outer wall. With such a configuration, it is possible to achieve both the ease of pushing in the unused state due to the protruding state and the difficulty in catching in the used state due to the non-projecting state. The details will be described later (see FIG. 12B and FIG. 12C).

  As a material of the housing 44, for example, the same material as the above-described material exemplified as the material of the pedestal member 21 can be used.

[Sensor unit 2, device body unit 3, space forming unit 4, and moving mechanism 5]
As described above, the sensor unit 2 (see FIG. 2 and the like) of the present embodiment is configured by the detection member 24 and the needle member 25 in the base member 11, as shown in FIG.

  As described above, the apparatus main body 3 (see FIG. 1 etc.) of the present embodiment is, as shown in FIGS. 10 and 11, the pedestal member 21, pedestal cover member 22, valve body 23 and needle holding in the base member 11. A member 26, a movable member 27, a biasing member 28, a circuit board 29, and a storage member 41 in the cover member 12, a communication device 42, a circuit board 43, and a housing 44 are provided.

  As described above, the space forming portion 4 of the present embodiment is configured by the first top wall portion 22a1 of the pedestal cover member 22, as shown in FIGS.

  As described above, the moving mechanism 5 of the present embodiment is configured by the pedestal member 21, the needle holding member 26, the movable member 27, and the biasing member 28 as shown in FIG. 11.

  According to the moving mechanism 5 of the present embodiment, the movable member 27 is in the axial direction of the annular protrusion 21 d with respect to the annular protrusion 21 d of the pedestal member 21 (in the biological information detecting device 1 of the present embodiment It is movable in the extending direction A and the same direction as the extending direction B of the needle member 25). The needle holding member 26 is movable in the extending direction B of the needle member 25 with respect to the movable member 27. By using such a telescopic mechanism, it is possible to change the total length of the base member 21, the needle holding member 26 and the movable member 27 in the extending direction B of the needle member 25.

  Further, the biasing member 28 of the moving mechanism 5 of this embodiment is a needle holding member so that the total length of the base member 21, the needle holding member 26 and the movable member 27 in the extending direction B of the needle member 25 is maximized. 26 is always on. Therefore, according to the moving mechanism 5 of the present embodiment, since the sensor unit 2 is always urged in the direction of being accommodated in the device body 3, immediately after the accommodation space 6 is created by the space forming unit 4, The sensor unit 2 is accommodated in the accommodation space 6.

<Operation Method of Biological Information Detection Device 1 and Operation at that Time>
Next, an operation method of the biological information detection apparatus 1 and an operation at that time will be described. First, by attaching the cover member 12 including the communication device 42 to the base member 11 described above, the biological information detection device 1 in an unused state shown in FIGS. 3, 4, 8 and 9 is formed. Do. In the living body information detection apparatus 1 in the unused state, the apparatus main body 3 is in the second mode, and the sensor unit 2 is accommodated in the accommodation space 6. Therefore, a subject etc. can reduce the risk of touching the needle member 25 accidentally before use.

  12A to 12E are diagrams showing an operation method of the biological information detection apparatus 1 and an operation at that time. FIG. 12A is a view showing a peeling step of peeling the release paper 200 from the lower surface 3 a of the device body 3 of the living body information detection device 1 in the unused state. As described above, the lower surface 3a of the device body 3 of the biological information detection device 1 is provided with a sticking portion formed of an adhesive or the like as a mounting portion for mounting on the surface of the living body. Therefore, a release paper 200 is attached to the lower surface 3a of the device body 3 of the biological information detection device 1 so that the attached portion is not exposed in an unused state. When the biological information detection apparatus 1 is used, the release paper 200 is peeled off from the lower surface 3 a.

  FIG. 12B is a view showing a mounting step of mounting the living body information detection apparatus 1 in the unused state from which the release paper 200 has been peeled off to the living body surface BS. The lower surface 3a (see FIG. 12A) of the device body 3 exposed by the release of the release paper 200 (see FIG. 12A) is placed on the living body surface BS. The biological information detection apparatus 1 is mounted on the living body surface BS by adhering the adhering part provided on the lower surface 3a to the living body surface BS.

  FIG. 12C is a diagram showing an insertion step of inserting the sensor unit 2 (see FIGS. 6 and 8) into the living body by operating the biological information detecting device 1 mounted on the living body surface BS in FIG. 12B. . In the state shown in FIG. 12B, the cover 4a of the first top wall 22a1 constituting the operation unit is pressed toward the tip end side in the extension direction A of the sensor unit 2. As a result, as shown in FIG. 12C, the first top wall 22a1 is deformed and pushed into the housing 44. Thereby, while the sensor part 2 (refer FIG. 6, FIG. 8) is inserted in in-vivo, the biometric information detection apparatus 1 will be in use condition. In other words, the device body 3 changes the form from the above-described second form to the first form.

  Moreover, as shown to FIG. 12B, the 1st top wall part 22a1 protrudes outward rather than the outer wall comprised with the housing 44, when the apparatus main body part 3 is a 2nd form. Therefore, when performing the insertion process of inserting the sensor unit 2 into the living body in the biological information detection apparatus 1 in the unused state, it is possible to easily visually recognize the part to be operated. On the other hand, as shown in FIG. 12C, the first top wall 22a1 does not protrude outward beyond the outer wall formed by the housing 44 when the device body 3 is in the first form. Therefore, in the living body information detection apparatus 1 of a use condition, it is hard to be caught by clothes etc. Therefore, according to the living body information detection apparatus 1 of the present embodiment, it is possible to achieve both the ease of operation in the unused state and the difficulty in catching in the used state.

  After that, in the state where the sensor unit 2 is inserted into the living body and the device body 3 is indwelled on the living body surface BS, the biological information detection device 1 is measured for a predetermined period such as one week. Perform continuous measurement of substances.

  12D and 12E are schematic diagrams showing an operation of removing the biological information detection apparatus 1 after a predetermined period for measuring the substance to be measured has elapsed. 12D pulls up the first top wall 22a1 to the base end side in the extension direction A of the sensor unit 2 (see FIG. 6 etc.) using the tension jig 90, and the accommodation space 6 (see FIG. 8 etc.) And the housing process for housing the sensor unit 2 in the housing space 6. As mentioned above, the space formation part 4 of this embodiment is comprised by the 1st top wall part 22a1. By pulling up the first top wall 22a1, the apparatus main body 3 is changed in form from the first form (see FIG. 6 etc.) to the second form (see FIG. 8 etc.). Thereby, the accommodation space 6 is created. Furthermore, the sensor unit 2 is removed from the living body by the moving mechanism 5 (see FIG. 11), and the sensor unit 2 is accommodated in the accommodation space 6. The operation of the sensor unit 2 in the accommodation process in which the sensor unit 2 is accommodated will be described later.

  FIG. 12E is a view showing a removal process of removing the biological information detection apparatus 1 from the living body surface BS after the sensor unit 2 is removed from the living body and the sensor unit 2 is accommodated in the accommodation space 6. As described above, the sensor unit 2 has already been removed from the living body in FIG. 12E by the accommodation process shown in FIG. 12D. Therefore, the living body is less likely to be damaged when the living body information detection device 1 is removed from the living body surface BS as compared to when the living body information detection device 1 is removed from the living body surface BS in a state where the sensor unit 2 is not removed. That is, when the biological information detection apparatus 1 is removed from the living body surface BS, the pain felt by the subject can be reduced.

  The removed biological information detection apparatus 1 is separated into the base member 11 and the cover member 12 shown in FIGS. 10 and 11. More specifically, an opening 93 (see FIG. 8 or the like) into which a finger can be inserted from the outside is provided between the base member 21 of the base member 11 and the housing 44 of the cover member 12. When the base member 11 and the cover member 12 are separated, a finger is inserted into the opening 93 and separated.

  The base member 11 is a disposable member. On the other hand, the cover member 12 is a reuse member used for the plurality of base members 11. That is, the base member 11 is used for a predetermined period (for example, one week) for the same subject. Thereafter, when the same subject continues to use the biological information detection apparatus 1, the used base member 11 is disposed of and replaced with a new base member 11. The cover member 12 is used for both the base member 11 before replacement and the base member 11 after replacement. That is, by removing the cover member 12 from the used base member 11 and mounting the removed cover member 12 on the new base member 11, the living body information detection apparatus 1 can be made available again.

  By doing this, it is possible to suppress reuse of the detection member 24 and the needle member 25 etc. inserted in the living body and re-use of the electricity storage member 41 and the communication device 42 etc. not to be inserted in the living body. It can be used.

<Operation Associated with Form Change of Device Body 3>
Next, referring to FIGS. 6, 8 and 13, sensor unit 2 and apparatus body 3 when form of apparatus body 3 changes between the first form and the second form. The details of the operation of the space forming unit 4 and the moving mechanism 5 will be described. FIG. 13 moves only the space forming unit 4 from the apparatus main body 3 in the first form shown in FIG. 6 to the state of the apparatus main body 3 in the second form. It is the figure which left the state of the apparatus main body part 3 in form. As described later, since the apparatus body 3 of the present embodiment includes the biasing member 28, the state shown in FIG. 13 does not occur when changing the apparatus body 3 from the first form to the second form. However, for convenience of explanation, it has shown in order to explain operation of sensor part 2, and space formation part 4 of apparatus main part 3, and moving mechanism 5.

  First, an operation when the apparatus body 3 changes form from the first form (see FIG. 6) to the second form (see FIG. 8) will be described.

  As described above, in the apparatus main body 3 in the first form shown in FIG. 6, the first top wall 22a1 as the space forming part 4 is in a state where it is pushed into the housing opening 44a of the housing 44. Is maintained. Therefore, in the apparatus main body 3 in the first mode shown in FIG. 6, the coil spring as the biasing member 28 of the moving mechanism 5 is restored for extension by the force of the first top wall 22a1 maintaining its posture. Maintained in a compressed position with stored energy. In other words, the pressing projection 4a1 provided on the lower surface of the covering portion 4a of the first top wall portion 22a1 as the space forming portion 4 resists the urging force of the urging member 28 and lowers the needle holding member 26. (In FIG. 6, it is pressing down). The pressing projection 4 a 1 of the present embodiment is not in direct contact with the needle holding member 26. The pressing projection 4 a 1 presses the needle holding member 26 via the conductive connection member 91 connected to the detection member 24. The conductive connection member 91 is connected to the electric circuit of the circuit board 29.

  By operating the first top wall portion 22a1 as the space forming portion 4 from the state shown in FIG. 6 to restore the shape of the natural state shown in FIG. 13, the housing space 6 of the sensor portion 2 is created. In order to change the shape of the first top wall 22a1 from the state shown in FIG. 6 to the state shown in FIG. 13, for example, a tension jig 90 shown in FIG. 12D may be used.

  When the first top wall 22a1 as the space forming part 4 returns to the natural state shown in FIG. 13, the biasing member 28 is expanded by the restoring force, and the needle holding member 26 extends the sensor part 2 via the arm 26b. It moves to the base end side (the upper side in FIG. 13) of the existing direction A. Next, the pushed-up needle holding member 26 engages with the movable member 27 to move the movable member 27 upward with respect to the annular projection 21 d of the pedestal member 21. As a result, the total length of the needle holding member 26, the movable member 27, and the sensor unit 2 of the annular projection 21d of the pedestal member 21 in the extending direction A can be increased. Then, the needle member 25 held by the needle holding member 26 and the detection member 24 accommodated in the needle member 25 can be moved into the accommodation space 6 to be in the state shown in FIG. That is, the moving mechanism 5 starts the movement of the sensor unit 2 based on the deformation of the space forming unit 4 by the biasing member 28 that biases the sensor unit 2 toward the accommodation space 6. As a result, the device body 3 can be in the second form, and the detection member 24 and the needle member 25 that constitute the sensor unit 2 can be made not to protrude from the device body 3.

  In other words, the device body 3 moves the covering portion 4 a in a direction away from the sensor portion 2 by the deformation of the supporting portion 4 b in the extending direction A of the sensor portion 2 to obtain the first form The form can be changed to 2 forms.

  Next, an operation when the apparatus body 3 changes form from the second form (see FIG. 8) to the first form (see FIG. 6) will be described.

  The first top wall portion 22a1 as the space forming portion 4 is pushed into the state shown in FIG. At this time, the pressing projection 4a1 of the covering portion 4a of the first top wall portion 22a1 is the tip end side of the needle holding member 26 in the extending direction A of the sensor unit 2 (the lower side in FIG. 8) Side) and push it down. Next, the depressed needle holding member 26 engages with the movable member 27 to move the movable member 27 into the annular projection 21 d of the pedestal member 21. As a result, in the extending direction A of the sensor unit 2, the overall lengths of the needle holding member 26, the movable member 27, and the annular protrusion 21 d of the pedestal member 21 can be made short. As a result, the housing space 6 disappears, and the needle member 25 held by the needle holding member 26 and the detection member 24 housed in the needle member 25 are made to project from the apparatus main body 3. That is, the device body 3 can be made into the first form shown in FIG.

  In other words, the apparatus main body 3 in a state in which the sensor unit 2 is accommodated in the accommodation space 6 is in a direction in which the covering unit 4a approaches the sensor unit 2 due to the deformation of the support unit 4b in the extension direction A By moving, the form can be changed from the second form to the first form. Further, at the same time as this form change, the sensor unit 2 can be protruded to the outside of the device body 3.

  As described above, the apparatus body 3 can be changed in form from the second form to the first form. When the internal pressure of the internal space X is increased during this form change, the force for pushing the first top wall portion 22a1 as the space forming portion 4 is increased, and the operability may be reduced. As shown in FIG. 14, the device body 3 is provided with a valve body 23. Therefore, when the first top wall portion 22a1 as the space forming portion 4 is pushed in, air is discharged from the slit of the valve body 23 to the outside of the internal space X. For this reason, the internal pressure rise of internal space X is controlled. That is, the operability when changing the form of the device body 3 from the second form to the first form can be enhanced.

  Next, a biological information detection apparatus 100 as a modification of the above-described biological information detection apparatus 1 will be described with reference to FIGS. Here, differences between the biological information detection apparatus 100 and the above-described biological information detection apparatus 1 will be mainly described, and the description of the common configuration will be omitted.

  FIG. 15 is a perspective view showing the top side of the biological information detection apparatus 100. As shown in FIG. FIG. 16 is a perspective view showing the lower surface side of the biological information detection apparatus 100. As shown in FIG. FIG. 17 is a perspective view showing the upper surface side of the biological information detection apparatus 100 in a state in which the sensor unit 2 is accommodated in the inside of the apparatus main body 3. FIG. 18 is a perspective view showing the lower surface side of the living body information detection apparatus 100 in a state in which the sensor unit 2 is accommodated inside the apparatus main body unit 3. FIG. 19 is a top view of the biological information detection apparatus 100 in the use state shown in FIG. 15 and FIG. FIG. 20 is a cross-sectional view taken along the line IV-IV of FIG. FIG. 21 is a cross-sectional view showing the same cross section as FIG. 20 about the living body information detection apparatus 100 in the unused state shown in FIG. 17 and FIG. FIG. 22 is an exploded perspective view of the biological information detection apparatus 100 in an unused state (FIGS. 17, 18 and 21). FIG. 23 is a cross-sectional view of each of the base member 11 and the cover member 12 shown in FIG. FIG. 24 is a cross-sectional view taken along the line V-V of FIG.

  As shown in FIGS. 22 and 23, the biological information detection apparatus 100 is different from the above-described biological information detection apparatus 1 in that the base member 11 does not include the pedestal cover member 22 and the valve body 23. . That is, the base member 11 of the biological information detection apparatus 100 includes the pedestal member 21, the detection member 24, the needle member 25, the needle holding member 26, the movable member 27, the biasing member 28, and the circuit board 29. Equipped with As shown in FIGS. 22 and 23, since the base member 11 does not have the pedestal cover member 22, the needle holding member 26, the movable member 27, the biasing member 28 and the circuit board 29 are mounted on the mounting surface of the pedestal member 21. , Barely exposed. Thus, in the base member 11, the needle holding member 26, the movable member 27, the biasing member 28 and the circuit board 29 may be exposed, but there is a possibility that the subject may touch the moving mechanism 5 or the circuit board 29. Since there is a possibility that liquid etc. may adhere to the case, it is preferable to have a configuration in which there is a pedestal cover member 22 (see FIG. 10) as in the biological information detection device 1 described above.

  In addition, as shown in FIGS. 22 and 23, the biological information detection apparatus 100 has the circuit board 43 exposed inside the housing 44 of the cover member 12 as compared to the biological information detection apparatus 1 described above. It is different. Although the circuit board 43 may be exposed, if the circuit board 43 is accommodated in the hollow portion of the housing 44 and only the portion of the terminal portion 43a is exposed as in the biological information detecting device 1 described above, the circuit is It becomes difficult for liquid or the like to adhere to the substrate 43. Further, as in the seal frame 33a (see FIG. 10) of the biological information detection apparatus 1 described above, the terminal 29a of the circuit board 29 of the base member 11 and the terminal 43a of the circuit board 43 of the cover member 12. Sealing the entire circuit board can be ensured by sealing the periphery.

  As shown in FIG. 23, when the cover member 12 is mounted on the base member 11, the storage member 41 of the cover member 12 of the biological information detection apparatus 100 is pressed by the base member 21 of the base member 11 and elastically deformed. , And a terminal portion 41a in contact with the circuit board 43. The storage member 41 of the cover member 12 of the biological information detection apparatus 1 described above has, for example, a removable insulating sheet interposed between it and the circuit board 43 so that the circuit can be removed when not in use. Electrical conduction with the electric circuit of the substrate 43 can be prevented. On the other hand, since the storage member 41 of the cover member 12 of the biological information detection apparatus 100 of the present embodiment includes the above-described terminal portion 41a, the storage member 41 can be separated by separating the cover member 12 from the base member 11. The electric circuit can be separated from the electric circuit of the circuit board 43 to interrupt the energization. Thus, it is possible to suppress unnecessary energization of the storage member 41.

  Furthermore, as shown in FIGS. 22 and 23, in the biological information detection apparatus 100, the operation unit 145 as the space forming unit 4 is provided in the housing 44 of the cover member 12 as compared to the biological information detection apparatus 1 described above. It differs in that it is The operating portion 145 as the space forming portion 4 is attached to the housing 44 so as to cover the housing opening 44 a of the housing 44. About the shape of the operation part 145, since it is the same as that of 1st top wall part 22a1 in the biometric information detection apparatus 1 mentioned above, description is abbreviate | omitted here.

  Furthermore, as shown in FIG. 23, the biological information detection apparatus 100 has an O-ring that enhances the sealing property with the base member 11 in the housing 44 of the cover member 12 as compared to the biological information detection apparatus 1 described above. 146 is attached. As shown in FIGS. 20 and 21, the O-ring 146 is sandwiched between the housing 44 of the cover member 12 and the side wall 21 e of the base member 21 of the base member 11 to seal between them.

  Further, as shown in FIGS. 16 and 18, etc., the biological information detection apparatus 100 is provided with an opening 93 between the base member 11 and the cover member 12 as compared to the biological information detection device 1 described above. There is no difference in the point. Although the configuration in which the opening 93 is not provided as described above may be employed, it is preferable to provide the opening 93 as in the case of the biological information detection device 1 described above. In this way, the base member 11 and the cover member 12 can be easily separated after use.

  As shown in FIG. 24, in the biological information detection apparatus 100, a through hole 134 is formed in the housing 44 of the cover member 12 as compared to the biological information detection apparatus 1 described above, and the through hole 134 It differs in the point in which the valve body 123 is provided. In the biological information detection apparatus 100, a space Y is formed between the cover member 12 and the base member 11 in a state where the cover member 12 is mounted on the base member 11. When inserting the sensor unit 2 into the living body, an operation of pushing the space forming unit 4 configured by the operation unit 145 is performed as in the case of the biological information detection device 1 described above. When the internal pressure of the space Y increases when the space forming portion 4 is pushed, the force required to push the space forming portion 4 also increases, but the air of the space Y is reduced by providing the valve body 123 described above. It can be discharged to the outside from the slit, and an increase in internal pressure in the space Y can be suppressed.

  The base member and the biological information detection apparatus according to the present disclosure are not limited to the specific configurations described above, and various modifications and changes can be made without departing from the scope of the claims. For example, in the above-described biological information detection devices 1 and 100, the space forming unit 4 is configured to create the storage space 6 by being deformed, but may be configured to create the storage space 6 by moving. .

  The present disclosure relates to a biological information detection device and a base member.

1, 100: living body information detection device 2: sensor portion 3: device body portion 3a: lower surface of device body portion 4: space forming portion 4a: covering portion 4b: support portion 4b1: cylindrical portion 4b2: tapered cylindrical portion 4b3: annular flange Part 5: Moving mechanism 6: Housing space 11: Base member 12: Cover member 21: Base member 21a: Receiver 21a1: Through hole 21b: Base notch 21c: Seal frame 21d: Ring-like protrusion 21d1: Ring-like protrusion Upper end face 21e of the opening: Side wall 21f: Outer rim convex part 22: pedestal cover member 22a: top wall 22a1: first top wall (space forming part)
22a2: second top wall 22b: surrounding frame 22b1: first surrounding frame 22b2: second surrounding frame 23, 123: valve 24: detection member 25: needle member 26: needle holding member 26a: main body 26b : Arm portion 27: Movable member 27a: Convex portion 27b: Opening 28: Biasing member 29: Circuit board 29a: Terminal portion 30: First cover portion 31: Second cover portion 32: Notched portion 33: First penetration Hole 33a: seal frame 34: second through hole 35: through hole 41: storage member 41a: terminal 42: communication device 42a: controller 42b: transmitter 43: circuit board 43a: terminal 44: housing 44a: accommodation Opening 44b: upper surface plate portion 44c: lower surface plate portion 44d: peripheral side plate portion 44e: communication port 80: first annular thin portion 81: second annular thin portion 90: tension jig 91: conductive connecting member 92: sealing member 93: opening Part 134: The through-hole 145: operation unit (space forming section)
146: O-ring 200: Release paper A: Extension direction of sensor unit B: Extension direction of needle member X: Internal space X1: First internal space X2: Second internal space Y: Space BS: living body surface

Claims (10)

A biological information detection apparatus comprising: a tubular sensor section inserted into a living body; and an apparatus main body section detained on the surface of the living body in a state where the sensor section is inserted into the living body,
The device body includes a space forming unit that internally stores a housing space capable of housing the sensor unit by deformation or movement, and a moving mechanism that moves the sensor unit toward the housing space. Information detection device.   The biological information detection apparatus according to claim 1, wherein the movement mechanism starts movement of the sensor unit based on deformation or movement of the space formation unit.   The biological information detection apparatus according to claim 1, wherein the movement mechanism includes a biasing member that biases the sensor unit toward the accommodation space.   The device body changes in form between the first form in which the accommodation space is not inside and the second form in which the accommodation space is inside by deformation or movement of the space forming part. The biological information detection apparatus according to any one of claims 1 to 3, which is possible.   The device body portion is configured between the first form and the second form by deforming or moving the space forming portion in the extension direction of the sensor portion on the proximal end side of the sensor portion. The biological information detection apparatus according to claim 4, wherein The space forming portion supports the covering portion covering the proximal end side of the sensor portion, and supports the covering portion, and can deform the covering portion in the extending direction by deforming or moving in the extending direction. And a support portion,
The apparatus main body moves the covering portion in a direction away from the sensor portion by deformation or movement of the supporting portion in the extending direction, from the first form to the second form. The biometric information detection apparatus according to claim 5, wherein the form is changeable.   The apparatus main body in a state in which the sensor unit is accommodated in the accommodation space moves the covering unit in a direction toward the sensor unit by deformation or movement of the support unit in the extending direction. The biological information detection apparatus according to claim 6, wherein the form can be changed from the second form to the first form, and the sensor unit is protruded to the outside of the apparatus main body.   The biological information detection apparatus according to claim 7, wherein the covering unit constitutes an operation unit that is pressed when the sensor unit is inserted into the living body.   The living body information detection according to any one of claims 4 to 8, wherein the space forming unit can maintain the posture in each of the first form and the second form of the device main body. apparatus. It is a base member of a living body information detecting device to which a cover member including a communication device can be attached,
A tubular sensor unit inserted into the living body;
And an apparatus main body section indwelling on the surface of a living body in a state where the sensor section is inserted into the living body,
The apparatus main body unit includes a space forming unit that internally generates an accommodation space capable of accommodating the sensor unit by being deformed or moved, and a movement mechanism that moves the sensor unit toward the accommodation space. Element.

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