JP2017131542A - Biological information processing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a biological information processing apparatus capable of improving work efficiency of charge operation.SOLUTION: A biological information processing apparatus comprises: a replacement tool equipped with a sensor and a needle member; a sensor insertion device to which the replacement tool is replaceably fitted and which can insert the sensor and the needle member into a living body; and a processor which can process biological information obtained from the sensor indwelled in the living body by the sensor insertion device. The sensor insertion device includes: a movable member which can move in an insertion direction and a removing direction of the needle member; and an elastic member which deforms by the movement of the movable member and can accumulate elastic energy for moving the sensor and the needle member to an insertion position where the sensor and the needle can be inserted into the living body. The elastic member can accumulate the elastic energy by pressing the movable member against the processor and moving the movable member in the removing direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a biological information processing apparatus.

  Conventionally, a sensor is inserted or implanted in the body of a subject such as a patient, and an analyte (for example, glucose, pH, cholesterol, protein, etc.) in the body fluid of the patient is detected by the sensor. In this case, a sensor insertion device is used to quickly and easily place the sensor through the patient's skin (see Patent Document 1).

  Patent Document 1 describes a sharp member (needle member) that is inserted together with a sensor, and a plunger that punctures by moving the sensor and the sharp member. According to the configuration described in Patent Document 1, the attachment unit can be placed on the living body side together with the sensor inserted into the living body. The mounting unit is provided with a body-worn electronic device that stores biological information of the acquired glucose value.

Special table 2013-523217 gazette

  By the way, in this kind of sensor insertion apparatus, it is calculated | required that some parts, such as a part inserted in a biological body, can be reused as a disposable changer. In such a case, after removing the used exchange device, an operation of accumulating the elastic energy of the elastic member that is used when the sensor and the needle member are inserted into the living body or when the needle member is removed from the living body (hereinafter referred to as the following) May be simply described as “charging operation”), and then a series of operations for newly installing a disposable changer occurs. This series of operations is performed using a sensor insertion device. This is a hassle for health care workers and healthcare professionals.

  The sensor insertion device described in Patent Document 1 does not reuse parts other than a part inserted into the living body, and performs the charging operation of the elastic member when inserting the sensor and the needle member into the living body. do not need. Therefore, it does not improve the efficiency of a series of operations related to the above-described charging operation.

  An object of the present invention is to provide a biological information processing apparatus capable of improving the work efficiency of a charging operation.

  According to a first aspect of the present invention, there is provided a biological information processing apparatus including an exchange device including a sensor capable of detecting biological information, a needle member inserted into the living body together with the sensor, and the exchange device being replaceable. A sensor insertion device mounted and capable of inserting the sensor and the needle member into a living body, and a processing device capable of processing biological information obtained from the sensor placed in the living body by the sensor insertion device, The sensor insertion device includes a movable member movable in the insertion direction and a removal direction of the needle member, and is deformed by the movement of the movable member, and moves the sensor and the needle member to an insertion position where the sensor and the needle member can be inserted into a living body. An elastic member capable of accumulating elastic energy, and the elastic member presses the movable member against the processing device and moves the movable member in the removal direction. It is characterized in that it is capable of storing sexual energy.

  As one embodiment of the present invention, the sensor insertion device includes a housing that houses the movable member and the elastic member, and the movable wall moves on the inner wall of the housing when the movable member moves in the removal direction. It is preferable that the rail part which guides the moving direction of a member is provided.

  As one embodiment of the present invention, the movable member includes a holding member that holds the changer, a support member that is pressed against the processing apparatus and is movable in the removal direction while supporting the holding member, The rail portion guides the support member such that the distance from the holding member in a direction orthogonal to the removal direction increases as the support member moves in the removal direction. It is preferable that the needle member is separated from the holding member in a state where energy is accumulated, and the needle member is moved to the insertion position by the elastic energy.

  As one embodiment of the present invention, it is preferable that the sensor insertion device includes a biasing member that biases the support member toward the processing device.

  As one embodiment of the present invention, it is preferable that a plurality of the support members are provided, and the holding member is supported at a plurality of positions by the plurality of support members.

  As one embodiment of the present invention, the rail portion is continuous with a first guide portion that guides a moving direction when the support member moves in the removal direction, and the first guide portion, and the support member is It is preferable to include a second guide portion that guides the movement direction when moving in the insertion direction.

  As one embodiment of the present invention, when the elastic member is the first elastic member and the elastic energy is the first elastic energy, the sensor insertion device removes the needle member from the insertion position to the outside of the living body. A second elastic member capable of accumulating a second elastic energy that is moved to a possible removal position, wherein the second elastic member presses the movable member against the processing device to move in the removal direction. 2 It is preferable that elastic energy can be stored.

  ADVANTAGE OF THE INVENTION According to this invention, the biological information processing apparatus which can improve the working efficiency of charge operation can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the outline of the principal part of the biological information processing apparatus as one Embodiment of this invention, FIG.1 (a)-FIG.1 (d) typically show the form change of the principal part of a biological information processing apparatus. Show. It is a figure which shows the biological information processing apparatus as one Embodiment of this invention, and is a figure which shows separately the sensor insertion apparatus with which the exchange tool was mounted | worn, and a processing apparatus. 2A is a front view and FIG. 2B is a side view. It is a figure which shows the state which the elastic member in the sensor insertion apparatus shown in FIG. 2 compressed by the processing apparatus, and accumulate | stored elastic energy, FIG. 3 (a) is a front view, FIG.3 (b) is a side view. It is a figure which shows the form change of an exchange tool. It is a figure which shows the internal structure of a processing apparatus. It is a figure which shows the rail part as a modification of the rail part shown in FIG. It is a figure which shows the example using the rail part shown in FIG. It is a figure which shows the rail part as a modification of the rail part shown in FIG. It is a figure which shows typically operation | movement of a biasing member.

  Hereinafter, an embodiment of a biological information processing apparatus according to the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the common member in each figure.

  FIG. 1 is a diagram showing an outline of a main part of a biological information processing apparatus 1 as one embodiment of the biological information processing apparatus according to the present invention. Specifically, FIG. 1A to FIG. 1D schematically show the form change of the main part of the biological information processing apparatus 1. As shown in FIG. 1, the biological information processing apparatus 1 according to the present embodiment includes an exchange tool 10, a sensor insertion device 20, and a processing device 50.

  The exchange device 10 includes a sensor 11 that can detect biological information, and a needle member 12 that is inserted into the living body together with the sensor 11.

  The sensor insertion device 20 is mounted so that the exchange tool 10 is replaceable, and the sensor 11 and the needle member 12 can be inserted into the living body. Further, the sensor insertion device 20 of the present embodiment can remove the needle member 12 from the living body after the distal end side of the sensor 11 is left in the living body.

  Specifically, the sensor insertion device 20 is deformed by the movement of the movable member 21 that can move in the insertion direction A and the removal direction B of the needle member 12, and the movement of the movable member 21, and the sensor 11 and the needle member 12 are moved into the living body. An elastic member 22 capable of storing elastic energy to be moved to an insertion position where insertion is possible, and a housing 23 that houses the movable member 21 and the elastic member 22 are provided.

  The processing device 50 can process biological information obtained from the sensor 11 placed in the living body by the sensor insertion device 20.

  The sensor insertion device 20 is equipped with the exchange device 10 including the sensor 11 and the needle member 12, and the sensor 11 and the needle member 12 of the attached exchange device 10 are attached to the subject such as a patient by the sensor insertion device 20. It is inserted into the living body. Then, the processing device 50 and the sensor 11 are left on the living body side, and the member constituting the exchange device 10 other than the sensor 11 and the sensor insertion device 20 are separated from the surface of the living body. The processing device 50 left on the living body side processes the biological information obtained from the sensor 11.

  On the other hand, members of the exchange device 10 other than the sensor 11 are removed from the sensor insertion device 20 and disposed of, and the sensor insertion device 20 is reused. That is, the sensor 11 and the needle member 12 described above can be inserted by attaching a new exchange device 10 to the sensor insertion device 20.

  Here, as shown in FIG. 1, the elastic member 22 of the sensor insertion device 20 presses the movable member 21 against the processing device 50 and removes the movable member 21 relative to the housing 23 in the sensor insertion device 20. By moving in the direction B, it is possible to accumulate elastic energy that moves the sensor 11 and the needle member 12 in the exchange tool 10 attached to the sensor insertion device 20 to the insertion position.

  Specifically, in FIG. 1A, the processing device 50 is positioned in the insertion direction A of the sensor insertion device 20 to which the exchange tool 10 is attached, and the sensor insertion device 20 and the processing device 50 are separated from each other. Is shown. When the sensor insertion device 20 is moved closer to the insertion direction A toward the processing device 50 from the state shown in FIG. 1A, the movable member 21 of the sensor insertion device 20 is in contact with the top surface of the processing device 50. Abut. When the sensor insertion device 20 is further moved in the insertion direction A, the movable member 21 is pressed by the processing device 50, and the movable member 21 is housed in the sensor insertion device 20 while compressing and deforming the elastic member 22. It moves in the removal direction B relative to 23 (see FIG. 1B). Thereby, predetermined elastic energy can be accumulated in the elastic member 22.

  That is, the biological information processing apparatus 1 is elastically applied to the elastic member 22 by pressing the sensor insertion device 20 with the exchange device 10 attached thereto against the processing device 50 originally used after the sensor 11 is placed in the living body. It accumulates energy. 2. Description of the Related Art Conventionally, a processing apparatus that processes biological information obtained from a sensor placed in a living body is placed on the surface of the living body after the sensor is placed in the living body by the sensor inserting apparatus and the sensor inserting apparatus is separated from the living body surface. However, according to the biological information processing apparatus 1, the processing apparatus 50 is installed on the surface of the biological body in advance, and the shape of the processing apparatus 50 is used to obtain the sensor insertion apparatus. Accumulation of elastic energy in the 20 elastic members 22 can be easily performed. That is, the charging operation of the elastic member 22 can be performed more easily.

  In this embodiment, when the sensor insertion device 20 is further moved in the insertion direction A from the state shown in FIG. 1B, a release mechanism for releasing predetermined elastic energy accumulated in the elastic member 22 is provided. (See FIG. 1C). Then, when the elastic energy accumulated in the elastic member 22 is released by this release mechanism, the sensor 11 and the needle member 12 move in the insertion direction A by this elastic energy, and reach the insertion position to be inserted into the living body. Move (see FIG. 1 (d)). Details of this will be described later.

  In the above description, the case where the sensor insertion device 20 is moved closer to the insertion direction A toward the processing device 50 has been described. However, by moving the processing device 50 closer to the removal direction B toward the sensor insertion device 20, It is also possible to charge the elastic member 22. It is also possible to charge the elastic member 22 by moving the sensor insertion device 20 and the processing device 50 toward each other. However, considering the operation of inserting the sensor 11 and the needle member 12 into the living body after charging the elastic member 22, the elastic member is moved by bringing the sensor insertion device 20 closer to the processing apparatus 50 installed on the living body. It is preferable to charge 22.

  Hereinafter, each structure and characteristic part of the biological information processing apparatus 1 will be described in detail.

  2 and 3 are views showing details of the biological information processing apparatus 1 schematically shown in FIG. Specifically, FIG. 2 shows a state where the sensor insertion device 20 to which the exchange tool 10 is attached and the processing device 50 are separated from each other, and FIG. 3 illustrates the sensor insertion device 20 to which the exchange tool 10 is attached. A state is shown in which the elastic member 22 is compressed by the processing device 50 and stores elastic energy. 2 (a) and 3 (a) are front views of the biological information processing apparatus 1, and FIGS. 2 (b) and 3 (b) are side views of the biological information processing apparatus 1. FIG. The “front surface” of the biological information processing apparatus 1 means the front surface of the sensor insertion device 20, and means the surface of the sensor insertion device 20 where the side wall opening 23a of the housing 23 is formed. Further, the “side surface” of the biological information processing apparatus 1 means the side surface of the sensor insertion device 20, and means a surface located on the left and right sides of the front surface of the sensor insertion device 20. 2 and 3, for convenience of explanation, the inner wall and the outer wall of the housing 23 of the sensor insertion device 20 are indicated by two-dot chain lines.

<Sensor insertion device 20>
First, details of the sensor insertion device 20 will be described. The sensor insertion device 20 includes the elastic member 22 described above, the housing 23 described above, the elastic member 24 capable of storing elastic energy for moving the needle member 12 from the insertion position to a removal position where the needle member 12 can be removed from the living body, and the above-described sensor. An elastic energy variable mechanism 25 including the movable member 21, a holding mechanism 26, and an urging member 27 are provided. Hereinafter, for convenience of explanation, the elastic member 22 is referred to as “first elastic member 22”, and the elastic member 24 is referred to as “second elastic member 24”. The elastic energy accumulated in the first elastic member 22 for moving the sensor 11 and the needle member 12 to the insertion position is referred to as “first elastic energy”, and is accumulated in the second elastic member 24. The elastic energy that moves from the insertion position to the removal position where it can be removed from the living body is referred to as “second elastic energy”.

[Housing 23]
The housing 23 is an exterior member of the sensor insertion device 20 that defines a hollow portion. As shown in FIGS. 2 and 3, the housing 23 includes a cylindrical side wall portion 23 b that defines the side wall opening 23 a, and a ceiling wall portion 23 c that is integrally formed at one end in the removal direction B of the side wall portion 23 b. It has. The housing 23 does not have a bottom wall portion at a position facing the top wall portion 23c. In other words, the housing 23 defines the opening 23d at a position facing the top wall 23c, and the hollow portion of the housing 23 communicates with the outside through the opening 23d.

  In addition, the internal structure of the sensor insertion device 20 is put into the housing 23 through the open part 23d described above. Further, the internal structure of the sensor insertion device 20 placed in the housing 23 is, for example, fitted in a recess or a through hole formed in a side wall portion 23b of the housing 23 in a part (for example, a support base portion 28b described later). The sensor insertion device 20 is locked with respect to the housing 23 by fitting the protrusion with the recess or the through hole. In this way, by providing a locking portion such as a concavo-convex shape between the internal structure of the sensor insertion device 20 and the housing 23, the internal structure of the sensor insertion device 20 is prevented from falling off from the open portion 23 d of the housing 23. Is possible.

  The sensor 11 and the needle member 12 are punctured into the living body through the open portion 23 d of the housing 23. As described above, when the sensor 11 and the needle member 12 are inserted into the living body by the sensor insertion device 20, first, the movable member 21 of the processing device 50 is moved so that the processing device 50 enters the housing 23 from the opening 23d. The first elastic member 22 is charged by pressing the contact portion 50a and moving the movable member 21 in the removal direction B (see FIGS. 1A to 1C, FIG. 2, and FIG. 3). Then, when the first elastic energy is accumulated in the first elastic member 22, the first elastic energy of the first elastic member 22 is released by the release mechanism, and the processing device 50 enters the housing 23, The sensor 11 and the needle member 12 move to the insertion position through a space in the opening 23d where the processing device 50 is not located, or through a through-hole formed in the processing device 50 in the insertion direction A (see FIG. 1D). ).

  That is, in the present embodiment, a charging operation for accumulating the first elastic energy in the first elastic member 22 can be performed using the shape of the processing device 50 previously installed at a predetermined position on the living body (FIG. 1). (A) to FIG. 1 (c), FIG. 2 and FIG. 3), the sensor 11 and the needle member 12 are inserted into the living body while the processing device 50 is placed in a predetermined position on the living body. (See FIG. 1 (d)). The details of the release mechanism of this embodiment will be described later.

  In addition, as a material of the housing 23, a resin material is mentioned, for example. Examples of the resin material include ABS resin, AS resin, polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyvinylidene chloride resin, polyphenylene oxide, thermoplastic polyurethane, polymethylene methacrylate, polyoxyethylene, fluororesin, polycarbonate, and polyamide. And thermoplastic resins used in injection molding such as acetal resin, acrylic resin, and polyethylene terephthalate, and thermosetting resins such as phenol resin, epoxy resin, silicone resin, and unsaturated polyester.

[First elastic member 22]
As described above, the first elastic member 22 can store the first elastic energy that moves the sensor 11 and the needle member 12 of the exchange tool 10 to the insertion position where the first elastic member 22 can be inserted into the living body. Then, one firing spring 22a is used as the first elastic member 22, and the firing spring 22a is configured by a coil spring. Here, the “insertion position” means a position where at least the tip of the needle member can be inserted into the living body. 2 shows a state where the first elastic member 22 does not store the first elastic energy, and FIG. 3 shows a state where the first elastic member 22 stores the first elastic energy. Yes.

[Second elastic member 24]
The second elastic member 24 can accumulate second elastic energy that moves the needle member 12 of the exchange tool 10 from the insertion position to a removal position where the needle member 12 can be removed from the living body. One return spring 24a is used as the member 24, and the return spring 24a is constituted by a coil spring. Here, the “extraction position” means a position where the needle member can be extracted outside the living body. 2 shows a state in which the second elastic member 24 does not store the second elastic energy, and FIG. 3 shows a state in which the second elastic energy is stored in the second elastic member 24. Yes.

[Elastic energy variable mechanism 25]
The elastic energy variable mechanism 25 elastically deforms the first elastic member 22 and the second elastic member 24 so that the first elastic member 22 accumulates the first elastic energy, and the second elastic member 24 has the second elasticity. It can be set as the energy storage state which stored energy. FIG. 3 shows the sensor insertion device 20 in an energy storage state. Moreover, the elastic energy variable mechanism 25 of this embodiment implement | achieves an energy storage state by elastically deforming the 1st elastic member 22 and the 2nd elastic member 24 simultaneously. Here, “the first elastic member 22 and the second elastic member 24 are elastically deformed at the same time to be in an energy storage state” means that the first elastic member 22 and the second elastic member are in an energy storage state. 24 has a process of elastically deforming 24 at the same time, and only one of them may have a process of elastic deformation.

  First, with reference to FIG. 2 and FIG. 3, each member which comprises the elastic energy variable mechanism 25 of this embodiment is demonstrated. As shown in FIGS. 2 and 3, the elastic energy variable mechanism 25 of the present embodiment includes a fixed member 28 whose position is fixed with respect to the housing 23, and a movable member 21 that is movable with respect to the fixed member 28. It is equipped with.

  The fixing member 28 includes a rod-shaped guide portion 28a extending in the insertion direction A (or removal direction B), a support base portion 28b provided at one end of the guide portion 28a in the insertion direction A, and removal of the guide portion 28a. And a movement restricting portion 28c provided at one end in the direction B.

  The guide portion 28a is provided between the support base portion 28b and the movement restricting portion 28c, and a firing spring 22a as the first elastic member 22 is mounted around the guide portion 28a. In other words, the guide portion 28a extends in the hollow portion defined by the firing spring 22a as the first elastic member 22.

  Moreover, the guide part 28a is connected with the support base part 28b and the movement control part 28c in the state which penetrated the through-hole which the movable member 21 divides.

  The support base portion 28b of the present embodiment has a plate-like shape in which the extending direction of the guide portion 28a (the insertion direction A and the removal direction B) is the thickness direction, and when the needle member 12 is inserted, the insertion direction A bottom surface 28b1 located at A is in contact with the surface of the living body.

  As shown in FIGS. 2 and 3, the top surface 28b2 of the support base 28b is provided with a protrusion 28b3 protruding in the removal direction B. This protrusion 28b3 is engaged with a locking claw 31c in the movable member 31 of the holding mechanism 26 described later. Details of this will be described later.

  The movement restricting portion 28c of the present embodiment is located in the removal direction B with respect to the first elastic member 22 and the second elastic member 24, and ends of the first elastic member 22 and the second elastic member 24 in the removal direction B are provided. The movement in the extraction direction B is restricted. Further, the movement restricting portion 28c of the present embodiment has a plate shape in which the extending direction (insertion direction A and removal direction B) of the guide portion 28a is the thickness direction. The movement restricting portion 28c of the present embodiment is formed of a member different from the housing 23. For example, one end of the guide portion 28a in the removal direction B is fixed to the top wall portion 23c of the housing 23, and the housing 23 The movement restricting portion may be configured by the top wall portion 23c.

  Further, the fixing member 28 of the present embodiment is connected to a rod-shaped member that constitutes the guide portion 28a, one end of the rod-like member, a bottom plate member that constitutes the support base portion 28b, and the other end of the rod-shaped member, However, the present invention is not limited to this configuration, as long as it includes a guide part, a support base part, and a movement restriction part. Therefore, for example, the guide part, the support base part, and the movement restriction part can be configured by one or two members, or can be configured by combining four or more members.

  The movable member 21 includes a holding member 21a that holds the exchange device 10, and a support member 21b that is pressed against the contact portion 50a of the processing device 50 and is movable in the removal direction B while supporting the holding member 21a. ing.

  The holding member 21a is positioned in the insertion direction A with respect to the first elastic member 22 and the second elastic member 24, and extends between the movement restricting portion 28c and the support base portion 28b of the fixing member 28 along the guide portion 28a. Can be moved. Therefore, the holding member 21a is movable along the guide portion 28a of the fixed member 28 so that the facing distance to the movement restricting portion 28c of the fixed member 28 changes. Then, by moving the holding member 21a in the insertion direction A and the removal direction B in this way, the first elastic member 22 and the second elastic member 24 can be elastically deformed simultaneously with the movement restricting portion 28c.

  In other words, both the first elastic member 22 and the second elastic member 24 of the present embodiment press the movable member 21 against the processing device 50, and move the movable member 21 in the removal direction B relative to the housing 23. The first elastic member 22 can store the first elastic energy, and the second elastic member 24 can store the second elastic energy. it can.

  The holding member 21a of the present embodiment includes a base portion 21a1 and a cylindrical receiving portion 21a2 projecting from the base portion 21a1 in the removal direction B. The hollow portion defined by the cylindrical receiving portion 21a2 also penetrates the base portion 21a1 in the insertion direction A, and the guide portion 28a extends in the hollow portion.

  The base portion 21a1 is provided with a first clamping portion 29 that can clamp a sensor housing 13 (to be described later) of the exchange device 10. Further, a locking projection 30 is formed on a part of the outer edge of the base portion 21a1 in the direction orthogonal to the insertion direction A to which a locking claw portion 31c provided on another movable member 31 described later is hooked. .

  The receiving portion 21a2 receives one end in the insertion direction A of the firing spring 22a as the first elastic member 22 on the top surface located on the extraction direction B side. Therefore, when the holding member 21a is moved in the removal direction B along the guide portion 28a, the first elastic member 22 is compressed and deformed between the top surface of the receiving portion 21a2 and the movement restricting portion 28c, and as described above, The first elastic energy is stored in the elastic member 22. One end of the return spring 24a serving as the second elastic member 24 in the insertion direction A is externally fitted on the outer peripheral surface of the receiving portion 21a2. One end of the return spring 24a in the insertion direction A is received by the top surface of the base portion 21a1, and one helical end near the one end of the return spring 24a in the insertion direction A is the outer peripheral surface of the reception portion 21a2. It has been received. One end portion in the removal direction B of the second elastic member 24 is received by another movable member 31 described later, and when the holding member 21a is moved in the removal direction B along the guide portion 28a, the top of the base portion 21a1. The second elastic member 24 is compressed and deformed between the surface and the movable member 31, and the second elastic energy is accumulated in the second elastic member 24 as described above.

  The supporting member 21b can move between a supporting state in which the holding member 21a is supported and a non-supporting state in which the holding member 21a is not supported by being separated from the holding member 21a. Specifically, the first elastic member 22 and the second elastic member 24 of the present embodiment press the support member 21b of the movable member 21 against the abutting portion 50a of the top surface of the processing device 50, thereby supporting the movable member 21. 21b and the holding member 21a of the movable member 21 supported by the support member 21b are moved in the removal direction B to realize an energy storage state. In this process, the support member 21b moves the holding member 21a to the holding member 21a. The supported state is maintained.

  Then, in the energy storage state in which the first elastic energy is stored in the first elastic member 22 and the second elastic energy is stored in the second elastic member 24, the support member 21b is separated from the holding member 21a and held. The member 21a is not supported.

  Specifically, the state shown in FIG. 2 is a state in which the first elastic energy is not accumulated in the first elastic member 22 and the second elastic energy is not accumulated in the second elastic member 24. In this state, when the support member 21 b of the movable member 21 is pressed against the processing device 50, the support member 21 b and the holding member 21 a supported by the support member 21 b move in the removal direction B relative to the housing 23. Thereby, the 1st elastic member 22 and the 2nd elastic member 24 are charged.

  When the first elastic member 22 accumulates the first elastic energy and the second elastic member 24 accumulates the second elastic energy, the holding mechanism 26 (described later) causes the posture of the second elastic member 24 to be stored. Is retained. On the other hand, since the support member 21b is separated from the holding member 21a and the holding member 21a is not supported by the support member 21b, the first elastic energy of the first elastic member 22 is released, and the first elastic energy The sensor 11 and the needle member 12 move to the insertion position (see FIG. 1D).

  That is, according to the biological information processing apparatus 1 of the present embodiment, an insertion operation for moving the sensor 11 and the needle member 12 to the insertion position can be performed in conjunction with the charging operation of the first elastic member 22.

  In the present embodiment, a rail portion 23 f provided on the inner wall of the housing 23 is used as a release mechanism that releases the first elastic energy of the first elastic member 22. The rail portion 23f guides the moving direction of the support member 21b of the movable member 21 when the holding member 21a and the support member 21b of the movable member 21 move in the removal direction B.

  As shown in FIGS. 2 and 3, the rail portion 23 f is configured so that the support member 21 b moves in the direction perpendicular to the removal direction B as it goes in the removal direction B (the same direction as the direction perpendicular to the insertion direction A). Guide the distance away. The support member 21b is separated from the holding member 21a in a state where the first elastic member 22 has accumulated the first elastic energy (see FIG. 3). Thereby, the sensor 11 and the needle member 12 move to the insertion position by the first elastic energy. When the support member 21b is separated from the holding member 21a, the second elastic member 24 is in a state where the second elastic energy is accumulated.

  The rail portion 23f of the present embodiment is formed by a long groove having a C-shaped cross section formed on the inner wall of the housing 23. The connecting portion 80 located in the long groove of the support member 21b can move in the long groove along the extending direction of the long groove, but the connecting portion 80 has a C-shaped cross section of the long groove. It will not fall out of the long groove.

  In the present embodiment, the inner wall on the side surface side of the housing 23 is inclined so as to expand in the extraction direction B, and the rail portion 23f is formed on the inclined surface, whereby the first elastic energy release mechanism described above is provided. As long as the support member 21b is guided so that the distance between the support member 21b and the holding member 21a in the direction orthogonal to the removal direction B increases in the removal direction B, the support member 21b is limited to the configuration of the present embodiment. It is not something that can be done.

  Moreover, although the rail part 23f of this embodiment is provided in the inner wall of the side surface side of the housing 23, it is not restricted to this position, For example, the structure provided in the inner wall of the back side of the housing 23, etc. It is good also as a position. A configuration in which the rail portion 23f is provided on the inner wall on the back side of the housing 23 will be described later (see FIG. 8).

  Further, the support member 21b of the present embodiment has a holding member 21a in a direction orthogonal to the extraction direction B, more specifically, in the left-right direction in front view (see FIGS. 2A and 3A). It is provided in the position which opposes on both sides. If a plurality of supporting members 21b are provided and the holding member 21a is supported at a plurality of positions by the plurality of supporting members 21b as in the present embodiment, a part of the holding member 21a is formed by the single supporting member 21b. Compared with the locally supported configuration, it is easy to suppress the inclination of the holding member 21a, and the holding member 21a and the needle member 12 included in the exchange device 10 held by the holding member 21a are inserted in the insertion direction A and removed. The trajectory moving in the direction B can be stabilized.

  Furthermore, in the present embodiment, the support member 21b of the movable member 21 is moved along the rail portion 23f. However, there is no rail portion 23f and the moving member 21 guides the moving direction of the support member 21b. There may be no configuration. However, if the moving direction of the support member 21b of the movable member 21 is guided by the rail portion 23f as in the present embodiment, the moving direction of the movable member 21 during the charging operation can be stabilized.

  As a material of the fixed member 28 and the movable member 21 constituting the elastic energy variable mechanism 25, for example, a metal material such as stainless steel, aluminum, an aluminum alloy, titanium, a titanium alloy, or a resin material that can be used for the housing 23 described above. Can be used.

[Holding mechanism 26]
While the holding mechanism 26 is in the energy storage state and after the first elastic energy of the first elastic member 22 is released from the energy storage state, the sensor 11 and the needle member 12 are moved to the insertion position by the first elastic energy. The posture of the second elastic member 24 is maintained.

  The holding mechanism 26 of this embodiment includes a movable member 31 provided with a locking claw portion 31c. Here, in order to distinguish the movable member 21 in the elastic energy variable mechanism 25 and the movable member 31 of the holding mechanism 26 described above, the movable member 21 in the elastic energy variable mechanism 25 is hereinafter referred to as “first movable” for convenience of explanation. The movable member 31 of the holding mechanism 26 is referred to as a “second movable member 31”.

  The second movable member 31 is movable along the guide portion 28 a between the movement restricting portion 28 c of the fixed member 28 and the second elastic member 24. In other words, the second elastic member 24 extends between the holding member 21a of the first movable member 21 and the second movable member 31, and the extending direction of the guide portion 28a (insertion direction A or removal). By changing the facing distance between the holding member 21a of the first movable member 21 and the second movable member 31 in the direction B), the deformation state of the second elastic member 24 can be changed.

  Specifically, the second movable member 31 includes a base portion 31a, a cylindrical receiving portion 31b protruding from the base portion 31a toward the insertion direction A, and a direction orthogonal to the insertion direction A of the base portion 31a. And a locking claw portion 31c protruding from the outer edge portion in the insertion direction A. The hollow portion of the receiving portion 31b also penetrates the base portion 31a in the extraction direction B, and the guide portion 28a and the first elastic member 22 extend in the hollow portion.

  The base portion 31 a is provided with a second clamping portion 32 that can clamp the needle support portion 12 b of the needle member 12 of the exchange tool 10.

  The receiving portion 31 b receives an end portion on the side of the extraction direction B of the second elastic member 24. Specifically, one end portion of the return spring 24a as the second elastic member 24 in the removal direction B is fitted on the outer peripheral surface of the receiving portion 31b. One end of the return spring 24a in the removal direction B is received by the bottom surface of the base portion 31a, and one end of the spiral in the vicinity of one end of the return spring 24a in the removal direction B is received by the outer peripheral surface of the reception portion 31b. It has been. That is, the second elastic member 24 has one end in the insertion direction A received by the holding member 21a of the first movable member 21, and one end in the removal direction B received by the second movable member 31, and the guide portion 28a. By changing the facing distance between the holding member 21a and the second movable member 31 in the extending direction, the compression state of the second elastic member 24 can be changed.

  As described above, one end portion in the insertion direction A of the second elastic member 24 is received by the outer peripheral surface of the receiving portion 21a2 of the holding member 21a, and one end portion in the removal direction B of the second elastic member 24 is the second movable member. It is received by the outer peripheral surface of the receiving portion 31b of the member 31. The central axis of the receiving portion 21a2 of the holding member 21a and the central axis of the receiving portion 31b of the second movable member 31 are substantially coincident with each other. Therefore, the deformation direction of the second elastic member 24 is limited to the extending direction of the guide portion 28a.

  Furthermore, in this embodiment, the firing spring 22a as the first elastic member 22 extends into the hollow portion defined by the return spring 24a as the second elastic member 24, and the central axis of the first elastic member 22 The central axis of the second elastic member 24 is substantially coincident. The firing spring 22a as the first elastic member 22 is mounted around the guide portion 28a, and the deformation direction of the first elastic member 22 is the same as the deformation direction of the second elastic member 24. Limited to the extending direction. As described above, the deformation directions of the first elastic member 22 and the second elastic member 24 are substantially matched, and the central axis of the first elastic member 22 and the central axis of the second elastic member 24 are substantially matched, whereby the needle It is possible to stabilize the trajectory when the member 12 is inserted and the trajectory when the member 12 is removed, and reduce the pain of puncture.

  When the opposing distance in the extending direction of the guide portion 28a between the holding member 21a and the second movable member 31 becomes a predetermined value, that is, the second claw portion 31c is equal to or greater than the second elastic energy. In a state where the elastic energy is accumulated, the latching protrusion 30 of the holding member 21 a is ridden and caught by the latching protrusion 30. When the locking claw portion 31c is caught by the locking projection 30, the posture of the second elastic member 24 is held in a state where the second elastic energy is accumulated.

  Specifically, the first movable member 21 is moved relative to the housing 23 by pressing the first movable member 21 against the processing device 50 from a state where the second elastic member 24 does not accumulate the second elastic energy (see FIG. 2). To the removal direction B. If the second movable member 31 is in contact with the movement restricting portion 28c, the second movable member 31 does not move further in the removal direction B. Accordingly, when the holding member 21a of the first movable member 21 is moved in the removal direction B while the base portion 31a of the second movable member 31 is in contact with the movement restricting portion 28c, the holding member 21a and the second movable member are moved. The facing distance in the extending direction of the guide portion 28a between the member 31 and the member 31 is reduced. Thereby, the second elastic member 24 is compressed and deformed.

  And when the opposing distance in the extending direction of the guide part 28a between the top | upper surface of the base part 21a1 of the holding member 21a and the bottom face of the base part 31a of the 2nd movable member 31 becomes a predetermined value, ie, 2nd When the elastic member 24 is in a state of accumulating elastic energy equal to or higher than the second elastic energy, as described above, the locking claw portion 31c of the second movable member 31 rides on the locking protrusion 30 of the holding member 21a. It catches on the locking projection 30 (see FIG. 3).

  When the first elastic energy is released by the first elastic energy release mechanism described above in the energy storage state shown in FIG. 3, the sensor 11 and the needle member 12 are inserted by the first elastic energy of the first elastic member 22. Although it moves to a position (refer FIG.1 (d)), the 2nd elastic member 24 remains in the state which accumulate | stored the 2nd elastic energy during this time. That is, the locking claw portion 31c is caught by the locking projection 30 while the sensor 11 and the needle member 12 move to the insertion position, and remains in the state where the holding member 21a is locked.

  And if the sensor 11 and the needle member 12 move to an insertion position, the projection part 28b3 provided in the top | upper surface 28b2 of the support stand part 28b will engage with the latching claw part 31c of the 2nd movable member 31, and will be latched. The claw portion 31c is elastically deformed so as to expand in the left-right direction when viewed from the front (see FIGS. 2A and 3A), and the engagement between the locking claw portion 31c and the locking projection 30 is released. To do. Thereby, the second elastic energy of the second elastic member 24 is released, and the needle member 12 moves from the insertion position to the removal position.

  In other words, in the sensor insertion device 20 of the present embodiment, the operation of moving the sensor 11 and the needle member 12 to the insertion position is executed by the elastic energy accumulated in the first elastic member 22, and during this time, the second elastic member The elastic energy stored in 24 is not used. The operation of moving the needle member 12 to the removal position after the sensor 11 and the needle member 12 reach the insertion position is executed by the elastic energy accumulated in the second elastic member 24. Elastic energy is not used.

[Biasing member 27]
FIG. 9 is a diagram schematically showing the operation of the urging member 27. FIG. 9A shows a state before the support member 21b is pressed against the contact portion 50a of the processing device 50 (not shown in FIG. 9). 9B shows a state in which the first elastic member 22 and the second elastic member 24 (not shown in FIG. 9) are being charged by pressing the support member 21b against the contact portion 50a of the processing apparatus 50. Indicates. Further, FIG. 9C shows an energy storage state.

  As shown in FIG. 9, the urging member 27 urges the support member 21 b toward the processing device 50. Specifically, the urging member 27 of the present embodiment is a coil spring that extends between the bottom surface of the top wall portion 23c of the housing 23 and the support member 21b. Since the support member 21b is urged in the insertion direction A by the urging member 27, the support member 21b and the support member 21b are in close contact with the support member 21b and the processing device 50 (not shown in FIG. 9). The holding member 21a supported by the first elastic member 22 can be moved in the removal direction B while compressing and deforming the first elastic member 22. Thereby, the behavior of the holding member 21a and the support member 21b moving in the extraction direction B can be stabilized. In addition, when the sensor insertion device 20 is placed in the living body by the sensor insertion device 20 and the sensor insertion device 20 is separated from the processing device 50, the support member 21b has a biasing force of the biasing member 27 (in this embodiment, a coil spring). To the initial position shown in FIG. 2 and 3 are drawn with the biasing member 27 omitted for convenience of explanation.

<Exchanger 10>
Next, the exchange tool 10 as one embodiment of the present invention will be described. FIG. 4 is a diagram showing a change in the form of the exchange tool 10. FIG. 4A shows a form that can be attached to the sensor insertion device 20. FIG. 4B shows a sensor insertion device 20 that is realized by attaching the support member 21b to the processing device 50 and moving it in the removal direction B after being attached to the sensor insertion device 20 in the state of FIG. The form of the changer 10 in the energy storage state is shown. The form of the changer 10 shown in FIG. 4B is maintained until the sensor 11 and the needle member 12 are moved to the insertion position by the sensor insertion device 20. FIG. 4C shows a form of the exchange tool 10 when the needle member 12 is moved to the removal position by the sensor insertion device 20 from the state of FIG. 4A is the same as the form of the exchange 10 shown in FIG. 2, and the form of the exchange 10 shown in FIG. 4B is the exchange shown in FIG. This is the same as the tenth embodiment.

  As shown in FIG. 4, the exchange device 10 according to the present embodiment includes a sensor housing 13, a hollow member 14, and a sheet member 15 in addition to the sensor 11 and the needle member 12 described above.

[Sensor 11]
The sensor 11 of the present embodiment is inserted and placed in a living body and can detect living body information. Specifically, the sensor 11 of the present embodiment is provided at an optical fiber 150 serving as a light guide member whose distal end side is placed in a living body and whose proximal end side extends outside the living body, and a distal end portion 150b of the optical fiber 150. A detection unit 151 that is placed in the living body and capable of detecting biological information. In addition, as a light guide member, the optical waveguide comprised from an optical waveguide film can also be used.

  The detection unit 151 of the present embodiment includes a fluorescent gel containing a fluorescent dye that fluoresces by excitation light, and the fluorescent gel generates fluorescence according to the amount of analyte.

  The optical fiber 150 is a light guide that transmits excitation light applied to the detection unit 151 and measurement light detected by the detection unit 151. Specifically, a processing device 50 to be described later is disposed on the proximal end side of the optical fiber 150, and excitation light generated from the light emitting unit 51 of the processing device 50 disposed on the proximal end side of the optical fiber 150 is light. The detection unit 151 is irradiated through the fiber 150. In addition, the measurement light of the detection unit 151 generated by the excitation light is received by the light receiving unit 52 in the optical detection unit 53 of the processing device 50 through the optical fiber 150.

  Further, the optical fiber 150 of the present embodiment is held by the sensor housing 13. Specifically, the optical fiber 150 includes a linear portion 150a extending into the through hole 16 defined by the sensor housing 13 and a distal end portion that continues to the distal end side of the linear portion 150a and projects outward from the through hole 16. 150b, a curved portion 150c continuous to the proximal end side of the straight portion 150a, and a proximal end portion 150d continued to the proximal end side of the curved portion 150c.

  The optical fiber 150 in the state shown in FIG. 4A is not located in the needle portion 12 a of the needle member 12 and extends in the sensor housing 13. Note that the distal end portion 150b of the optical fiber 150 and the detection portion 151 provided on the distal end portion 150b are inserted into the living body together with the needle member 12 by the sensor insertion device 20, and then become a portion to be placed in the living body.

  When the state shown in FIG. 4A is changed to the state shown in FIG. 4B, the straight portion 150a and the tip portion 150b of the optical fiber 150 are located in the needle portion 12a of the needle member 12. The sensor 11 and the needle member 12 are moved to the insertion position by the sensor insertion device 20 while maintaining the positional relationship shown in FIG. In the state shown in FIG. 4B, the detection unit 151 provided at the distal end portion 150 b is also located at the needle portion 12 a of the needle member 12. Further, the curved portion 150c extends from the proximal end of the straight portion 150a to the outside of the needle portion 12a through a gap formed in the needle portion 12a of the needle member 12.

  When the needle member 12 is moved from the state shown in FIG. 4 (b) to the removal position to the state shown in FIG. 4 (c), the optical fiber 150 has the needle of the needle member 12 as in the state of FIG. 4 (a). It will be in the state which is not located in the part 12a. That is, the state shown in FIG. 4C shows a state in which the distal end portion 150b protruding outward from the through hole 16 is placed in the living body.

[Needle member 12]
The needle member 12 is inserted into the living body together with the sensor 11, and after the distal end side of the sensor 11 (in the present embodiment, the detection portion 151 and the distal end portion 150b of the optical fiber 150) is placed in the living body, the needle member 12 is removed from the living body. Is. Specifically, the needle member 12 includes a U-shaped needle portion 12a that defines a hollow portion and a gap is formed in the cross section, and a needle support portion 12b that supports the needle portion 12a. Yes.

  The needle portion 12 a is movable in the through hole 16 of the sensor housing 13. Specifically, the needle portion 12a does not extend into the through hole 16 in the state shown in FIG. 4A, and shifts from the state shown in FIG. 4B to the state shown in FIG. 4B. At this time, the inside of the through hole 16 is moved in the insertion direction A relative to the sensor housing 13. 4B, when moving from the state shown in FIG. 4B to the state shown in FIG. 4C, the inside of the through hole 16 moves in the removal direction B relative to the sensor housing 13, and is described later. Housed in member 14. In addition, as above-mentioned, the needle part 12a has accommodated the front end side of the sensor 11 in the state shown in FIG.4 (b).

  The needle support portion 12b has a rod-like shape, and the proximal end portion of the needle portion 12a is fixed to the distal end portion. More specifically, the needle support portion 12b extends in the insertion direction A and the extraction direction B, and the needle portion 12a is inserted from a flange portion 12b1 provided at an end portion in the insertion direction A of the needle support portion 12b. Projecting in the direction A. Further, the needle support part 12b has an annular groove part 12b2 into which the second clamping part 32 formed on the second movable member 31 of the sensor insertion device 20 enters at the end in the removal direction B. The flange portion 12b1 is movable in the hollow portion 14a of the hollow member 14. The flange portion 12b1 has a larger outer diameter than the through hole 14b1 defined by the top wall portion 14b of the hollow member 14. Therefore, the flange portion 12b1 is prevented from falling out of the hollow member 14 through the through hole 14b1. Accordingly, the needle portion 12a protruding from the flange portion 12b1 in the insertion direction A is also prevented from falling out of the hollow member 14 through the through hole 14b1.

  The flange portion 12b1 of the needle support portion 12b has an outer diameter that does not come into contact with a claw portion 14e of the hollow member 14 described later. Specifically, as shown in FIG. 4, the maximum width of the flange portion 12b1 in the direction orthogonal to the insertion direction A is the distance between the claw portions 14e provided to face the inner wall of the side wall portion 14c of the hollow member 14. The flange portion 12b1 is smaller than the distance and can move in the insertion direction A and the extraction direction B between the claw portions 14e arranged to face each other.

[Sensor housing 13]
The sensor housing 13 defines a through hole 16 in which the needle member 12 can be moved from the insertion position to the removal position by the sensor insertion device 20. The sensor housing 13 defines a guide path 17 that communicates with the through hole 16 because the optical fiber 150 extends outward from the gap formed in the needle portion 12 a of the needle member 12. .

  More specifically, the sensor housing 13 of the present embodiment includes a cylindrical body portion 13a having an outer shape, a disk-shaped base portion 13b integrally formed on the insertion direction A side of the body portion 13a, and a body portion 13a. And a cylindrical connecting portion 13c that protrudes radially outward from the side wall. The through-hole 16 described above is partitioned by the trunk portion 13a and the base portion 13b, and penetrates from the top surface (upper surface in FIG. 4) of the trunk portion 13a to the bottom surface (lower surface in FIG. 4) of the base portion 13b. Yes. A disc-shaped elastic member is disposed in the through hole 16. As the material of the elastic member, vulcanized rubber such as butyl rubber, isoprene rubber, silicone rubber and natural rubber, thermoplastic elastomer such as styrene elastomer, urethane elastomer, olefin elastomer and the like are used. Since the inside of the sensor housing 13 is sealed even after the needle portion 12a is removed by this elastic member, infection can be prevented. The guide path 17 described above is partitioned by the body portion 13a and the connection portion 13c, and the curved portion 150c and the base end portion 150d of the optical fiber 150 extend in the guide path 17.

  Furthermore, a fitting groove 18 into which an end portion in the insertion direction A of the hollow member 14 is fitted is formed on the top surface of the trunk portion 13a. When the trunk portion 13a is viewed from the top surface side, the fitting groove 18 has a quadrangular shape, and the through hole 16 is located at the center thereof. That is, the bottom wall of the fitting groove 18 defines one end opening in the removal direction B of the through hole 16 at the center. In addition, the shape of the fitting groove 18 when the trunk | drum 13a is seen from the top | upper surface side is not restricted to the square shape mentioned above, For example, polygonal shapes other than circular and a square may be sufficient.

  The connection unit 13c can be connected to a processing device 50 that emits excitation light and receives measurement light. The distal end surface of the connection portion 13 c defines one end opening of the guide path 17, and the guide path 17 extends from the one end opening in the connection portion 13 c and the body portion 13 a and communicates with the through hole 16. .

[Hollow member 14]
The hollow member 14 of the present embodiment has a substantially rectangular parallelepiped shape, and defines a hollow portion 14a that accommodates the needle portion 12a of the needle member 12 in the state shown in FIGS. 4 (a) and 4 (c). Yes. As shown in FIGS. 4A to 4C, the hollow member 14 can be fitted into a fitting groove 18 formed on the top surface of the body portion 13 a of the sensor housing 13. Further, the hollow member 14 can be easily removed by moving it in the removal direction B from the state where it is fitted in the fitting groove 18.

  Specifically, the hollow member 14 of the present embodiment includes a rectangular tubular side wall portion 14c, a bottom wall portion 14d positioned at one end in the insertion direction A of the side wall portion 14c, and one end of the side wall portion 14c in the removal direction B. The hollow portion 14a is partitioned by the side wall portion 14c, the bottom wall portion 14d, and the top wall portion 14b.

  Here, on the bottom wall portion 14 d in the hollow member 14, a connection member 60 that can connect the flange portion 12 b 1 in the needle support portion 12 b of the needle member 12 is disposed.

  The connecting member 60 can move in the hollow portion 14a in the insertion direction A and the extraction direction B along the inner wall of the side wall portion 14c of the hollow member 14, and the needle support portion is provided on the top surface on the extraction direction B side. A recessed portion 61 into which the flange portion 12b1 of 12b can be fitted is defined.

  When the state shown in FIG. 4A shifts to the state shown in FIG. 4B (see the white arrow in FIG. 4A), the flange portion 12b1 of the needle support portion 12b is a depression of the connection member 60. The needle member 12 and the connecting member 60 are connected by being fitted into the portion 61. In the example shown in FIG. 4, a locking claw portion 62 that prevents the flange portion 12 b 1 fitted in the recess portion 61 from slipping out of the recess portion 61 is provided on the inner wall that defines the recess portion 61.

  When the connection member 60 shifts from the state shown in FIG. 4B to the state shown in FIG. 4C, the connection member 60 moves in the hollow portion 14a together with the needle member 12 in the removal direction B (FIG. 4C). ) (See white arrow).

  The hollow member 14 includes a one-way lock unit that restricts the needle member 12 from moving again to the insertion position after the needle member 12 has moved from the insertion position to the removal position. Specifically, the inner surface of the side wall portion 14c of the hollow member 14 of the present embodiment is provided with a claw portion 14e as a one-way lock portion that protrudes toward the hollow portion 14a. As shown in FIGS. 4B and 4C, when the needle member 12 moves to the removal position, the connection member 60 connected to the flange portion 12b1 in the needle support portion 12b of the needle member 12 It slides on the part 14e and gets over the claw part 14e. As a result, the surface (the lower surface in FIG. 4) on the insertion direction A side of the connecting member 60 contacts the locking surface 14e1 of the claw portion 14e (the upper surface of the claw portion 14e in FIG. 4), and the needle member 12 moves in the insertion direction A. Return is regulated. And the state where the front-end | tip of the needle part 12a did not protrude from the through-hole 14d1 of the bottom wall part 14d, but stayed in the hollow part 14a is maintained. Therefore, after removing the changer 10 in the state of FIG. 4C from the sensor insertion device 20, the needle member 12 and the hollow member 14 are moved away from the sensor 11, the sensor housing 13, and the sheet member 15. Even so, since the needle portion 12a of the needle member 12 is located in the hollow portion 14a of the hollow member 14, it is suppressed that the measurement subject or the medical worker touches the needle portion 12a that has been punctured and removed from the living body. The

  Note that the maximum width of the connecting member 60 in the direction orthogonal to the insertion direction A is provided to face the inner wall of the side wall portion 14c of the hollow member 14 in order to restrict the re-movement of the needle member 12 to the insertion position. It is comprised larger than the opposing distance between the nail | claw parts 14e.

  In addition, the two claw portions 14e of the present embodiment are provided on the inner surfaces of two opposing wall portions of the side wall portion 14c, but are connected when the needle portion 12a moves on the central axis of the needle portion 12a. Arrangement and number of pieces that allow passage of the flange portion 12b1 to which the member 60 is not connected, and require sliding and overcoming when the flange portion 12b1 to which the connection member 60 is connected moves in the extraction direction B. There is no limitation to the above arrangement and number. Therefore, for example, the claw portion 14e may be provided on three or four wall portions of the side wall portion 14c, or may be provided on only one wall portion.

  The bottom wall portion 14 d defines a through hole 14 d 1 at the center thereof, and when the bottom wall portion 14 d of the hollow member 14 is fitted into the fitting groove 18 of the body portion 13 a of the sensor housing 13, The through hole 14 d 1 of the portion 14 d communicates with the through hole 16 of the sensor housing 13. Therefore, in a state where the bottom wall portion 14d of the hollow member 14 is fitted in the fitting groove 18, the needle portion 12a of the needle member 12 is removed through the through hole 16 of the sensor housing 13 and the through hole 14d1 of the bottom wall portion 14d. It can move to the hollow part 14a used as a position. The fitting force between the fitting groove 18 and the hollow member 14 is larger than the sliding force when the needle support portion 12b is moved in the removal direction. The connection member 60 connected to the flange portion 12b1 of the needle support portion 12b of the needle member 12 by the operation of moving the needle member 12 to a removal position where the needle member 12 can be removed outside the living body (see FIG. 4C) is described above. The side wall portion 14c slides with the claw portion 14e, gets over the claw portion 14e, and movement in the insertion direction A is restricted. The fitting force between the fitting groove 18 and the hollow member 14 is larger than the resistance force necessary for the connecting member 60 to get over the claw portion 14e.

[Sheet member 15]
The sheet member 15 is a thin member whose insertion direction A or removal direction B is the thickness direction, and the surface (the lower surface in FIG. 4) located in the insertion direction A is in contact with the living body surface, and the sensor 11 And the sensor housing 13 together with the sensor housing 13.

  An adhesive that can adhere to the surface of the living body may be provided on the lower surface of the sheet member 15. With this configuration, when the needle member 12 is moved to the insertion position by the sensor insertion device 20, the adhesive of the sheet member 15 adheres to the surface of the living body. Therefore, it is possible to suppress the sensor 11 and the sensor housing 13 placed on the living body side from moving due to body movement or the like. A peelable release paper may be provided on the adhesive surface of the sheet member 15.

<Processing device 50>
Next, measurement of biological information performed using the sensor 11, the sensor housing 13, and the sheet member 15 placed on the living body side of the exchange device 10 will be described. First, the processing device 50 is connected to the connection portion 13 c of the sensor housing 13.

  As described above, in the biological information processing apparatus 1 of the present embodiment, the processing device 50 is used when the sensor 11 is placed in the living body by the sensor insertion device 20. That is, in order to perform the placement of the sensor 11 in the living body by the sensor insertion device 20 with the processing device 50 placed on the biological surface, the sensor insertion device 20 can be separated from the biological surface after the sensor 11 is placed. For example, the sensor housing 13 that accommodates a portion of the sensor 11 that extends outside the living body and the processing device 50 are positioned in the vicinity. Therefore, according to the biological information processing apparatus 1 of the present embodiment, the connection portion 13c of the sensor housing 13 and the processing device 50 can be more easily connected.

  FIG. 5 simply shows the internal configuration of the processing apparatus 50. As illustrated in FIG. 5, the processing device 50 according to the present embodiment includes a light emitting unit 51 that generates excitation light that irradiates the detection unit 151 of the sensor 11, and a measurement light ( In the present embodiment, an optical detection unit 53 including a light receiving unit 52 that receives fluorescence (fluorescence) and a processing unit 54 that processes a signal obtained from the optical detection unit 53 are provided.

  The biological information processing apparatus according to the present invention is not limited to that described in the above-described embodiment, and various modifications can be made without departing from the description of the scope of the claims. For example, the rail portion 23f to which the support member 21b of the first movable member 21 of the present embodiment moves linearly extends, the flow line when the support member 21b moves in the insertion direction A, and the support member 21b. Is the same as the flow line when moving in the removal direction B, but the rail portion is different from the flow line when moving in the insertion direction A and the flow line when moving in the removal direction B. It is also possible. FIG. 6 is a diagram showing a rail portion 23f ′ as a modification of the rail portion 23f. FIG. 6 is a schematic view of the rail portion 23 f ′ viewed from the front side of the housing 23. That is, the rail portion 23 f ′ shown in FIG. 6 is formed on the wall surface facing the front side of the housing 23 among the inner walls of the housing 23.

  As shown in FIG. 6, the rail portion 23 f ′ is continuous with the first guide portion 71 that guides the movement direction when the support member 21 b moves in the removal direction B, and the support member 21 b. And a second guide portion 72 for guiding the moving direction when moving in the insertion direction A. Thus, the flow line when the support member 21b moves in the insertion direction A, that is, the flow line when the support member 21b returns to the initial position, and the flow line when the support member 21b moves in the removal direction B, That is, the holding member 21a (see FIG. 2 and the like) is obtained by separating the flow lines when charging the first elastic member 22 (see FIG. 2 and the like) and the second elastic member 24 (see FIG. 2 and the like). The flow line of the support member 21b can be optimized according to the shape of the support member 21b and the like.

  More specifically, the rail portion 23f ′ shown in FIG. 6 is connected to the second guide portion 72 at the end portion in the insertion direction A and the end portion in the removal direction B of the first guide portion 71, and the support member 21b. Among these, the connection part 80 accommodated in the rail part 23f 'moves the 1st guide part 71 and the 2nd guide part 72 in order.

  FIG. 7A is a guide in which the support member 21b moves in one direction without reversing to the connection portion between the first guide portion 71 and the second guide portion 72 in the rail portion 23f ′ shown in FIG. It is a figure which shows the structure which has arrange | positioned the guidance member to do. Specifically, FIG. 7A shows a configuration in which a flap 73 that can be rotated as a guide member is disposed at a connection portion between the first guide portion 71 and the second guide portion 72. Further, FIG. 7B shows that the support member 21b is accommodated in the rail portion 23f ′ so that the support member 21b moves in one direction without returning backward at the connection portion between the first guide portion 71 and the second guide portion 72. The shape of the connecting portion 80 of the support member 21b is an elliptical column having a long axis inclined with respect to the insertion direction A. In this way, by devising the shape of the connecting portion 80, it is possible to suppress the return of the support member 21b. Further, in FIG. 7C, the spring member 81 is arranged around the shaft portion protruding from the connecting portion 80 toward the outside of the long groove so that the connecting portion 80 rotates in the long groove as the rail portion 23f ′. Is. The spring member 81 urges the connecting portion 80 so that the connecting portion 80 rotates (see the arrow in the vicinity of the connecting portion 80 in FIG. 7C). If the connection portion 80 is rotated in the rail portion 23f ′, the support member 21b can be easily moved from one to the other guide portion at the connection portion between the first guide portion 71 and the second guide portion 72. can do.

  Moreover, although the rail part 23f of this embodiment is formed in the inner wall of the side surface side of the housing 23, it is not restricted to this structure, and as shown in FIG. It is good also as a structure which provides a part. FIG. 8A shows a state where the sensor insertion device 20 to which the exchange tool 10 is attached and the processing device 50 are separated from each other. FIG. 8B shows a sensor insertion device to which the exchange device 10 is attached. 20 shows a state where the first elastic member 22 and the second elastic member 24 are compressed by receiving a force from the processing device 50, that is, an energy storage state. In FIG. 8, for convenience of explanation, the biasing member 27 (see FIG. 9) for biasing the support member 21b toward the processing apparatus 50 is omitted.

  The rail portion 23g shown in FIG. 8 is formed on the inner wall on the back side of the housing 23, and the support member 21b is movable in the insertion direction A and the removal direction B along the rail portion 23g. The rail portion 23g guides the support member 21b so that the distance from the holding member 21a in the direction orthogonal to the removal direction B increases as it goes in the removal direction B, similarly to the rail portion 23f described above. Since the rail part 23g is the same as the biological information processing apparatus 1 described above except that the rail part 23g is formed on the inner wall on the back side of the housing 23, the description thereof is omitted here.

  Furthermore, in the changer 10 of this embodiment, in the form (refer FIG. 4A) with which the sensor insertion apparatus 20 is mounted | worn, the detection part 151 which comprises the front-end | tip part of the sensor 11, and the front-end | tip part 150b of the optical fiber 150 are provided. The sensor 11 and the needle portion 12a of the needle member 12 are both housed in the hollow member 14 in a state where the sensor insertion device 20 is mounted. Is also possible.

  The present invention relates to a biological information processing apparatus.

1: Biological information processing apparatus 10: Exchanger 11: Sensor 12: Needle member 12a: Needle part 12b: Needle support part 12b1: Flange part 12b2: Annular groove part 13: Sensor housing 13a: Body part 13b: Base part 13c: Connection part 14: Hollow member 14a: Hollow portion 14b: Top wall portion 14b1: Through hole 14c: Side wall portion 14d: Bottom wall portion 14d1: Through hole 14e: Claw portion (one-way lock portion)
14e1: Locking surface 15: Sheet member 16: Through hole 17: Guide path 18: Fitting groove 20: Sensor insertion device 21: First movable member (movable member)
21a: holding member 21a1: base portion 21a2: receiving portion 21b: support member 22: first elastic member (elastic member)
22a: Launch spring 23: Housing 23a: Side wall opening 23b: Side wall part 23c: Top wall part 23d: Opening parts 23f, 23f ', 23g: Rail part 24: Second elastic member 24a: Return spring 25: Elastic energy variable mechanism 26 : Holding mechanism 27: Biasing member 28: Fixing member 28 a: Guide portion 28 b: Support base portion 28 b 1: Bottom surface 28 b 2: Top surface 28 b 3: Protrusion portion 28 c: Movement restricting portion 29: First clamping portion 30: Locking protrusion 31 : Second movable member 31a: base portion 31b: receiving portion 31c: locking claw portion 32: second clamping portion 50: processing device 50a: contact portion 51: light emitting portion 52: light receiving portion 53: optical detecting portion 54: processing Part 60: Connection member 61: Recessed part 62: Locking claw part 71: First guide part 72: Second guide part 73: Flap (guidance member)
80: Connection part 81: Spring member 150: Optical fiber (light guide member)
150a: linear portion 150b of optical fiber: distal end portion 150c of optical fiber: curved portion 150d of optical fiber: proximal end portion 151 of optical fiber: detecting portion

Claims (7)

An exchange device comprising: a sensor capable of detecting biological information; and a needle member inserted into the living body together with the sensor;
A sensor insertion device in which the exchange tool is replaceably mounted, and the sensor and the needle member can be inserted into a living body;
A processing device capable of processing biological information obtained from the sensor placed in the living body by the sensor insertion device,
The sensor insertion device includes a movable member movable in the insertion direction and a removal direction of the needle member, and is deformed by the movement of the movable member, and moves the sensor and the needle member to an insertion position where the sensor and the needle member can be inserted into a living body. An elastic member capable of storing elastic energy,
The biological information processing apparatus according to claim 1, wherein the elastic member is capable of accumulating the elastic energy by pressing the movable member against the processing apparatus and moving the movable member in the removal direction. The sensor insertion device includes a housing that houses the movable member and the elastic member,
The biological information processing according to claim 1, wherein a rail portion that guides a moving direction of the movable member when the movable member moves in the removal direction is provided on an inner wall of the housing. apparatus. The movable member includes a holding member that holds the exchange tool, and a support member that is pressed against the processing apparatus and is movable in the removal direction while supporting the holding member.
The rail portion guides the support member so that a distance from the holding member in a direction orthogonal to the removal direction is increased as the support member is moved in the removal direction.
The support member is separated from the holding member in a state where the elastic member stores the elastic energy, and the needle member is moved to the insertion position by the elastic energy. Biological information processing device.   The biological information processing apparatus according to claim 2, wherein the sensor insertion device includes a biasing member that biases the support member toward the processing device. A plurality of the support members are provided,
The biological information processing apparatus according to claim 2, wherein the holding member is supported at a plurality of positions by the plurality of supporting members.   The rail portion is continuous with the first guide portion that guides the moving direction when the support member moves in the removal direction, and moves when the support member moves in the insertion direction. The biological information processing apparatus according to claim 2, further comprising a second guide portion that guides a direction. When the elastic member is a first elastic member and the elastic energy is a first elastic energy,
The sensor insertion device includes a second elastic member capable of accumulating second elastic energy for moving the needle member from the insertion position to a removal position where the needle member can be removed from the living body,
The said 2nd elastic member can accumulate | store the said 2nd elastic energy by pressing the said movable member against the said processing apparatus and moving it in the said extraction direction, The one of Claims 1 thru | or 6 characterized by the above-mentioned. The biological information processing apparatus according to one.

Images