JP4441587B2 - Test paper magazine, magazine holder and test paper loading device - Google Patents

Description

  The present invention relates to a test paper magazine, a magazine holder, and a test paper loading device, and in particular, a test paper magazine for storing a plurality of sample component test papers, a magazine holder for holding the test paper magazines in a replaceable manner, and a sample component test paper. The present invention relates to a test paper mounting device for mounting a sample component test paper on a portable sample analyzer having a test paper holding part for holding a test piece at the tip.

  Color test paper is used as a means for easily analyzing components contained in human or animal body fluids, such as blood, sweat, urine, or the like, or components contained in water and sewage, factory wastewater, or soil. Color test paper is well known as litmus paper, but a test piece containing a reagent that develops color when a specimen is applied is attached to the tip of stick-shaped paper. Yes, it is possible to analyze the components contained in the specimen from the change in color tone.

  For example, as a method for examining the blood glucose level by a non-invasive method, the urine sugar level is measured using a urine component test paper. The urine component test paper for examining the urine sugar value is obtained by attaching a test piece containing a reagent to the tip of a stick-like paper. When urine is applied to the portion of the test piece, the color develops in different colors depending on the amount of sugar (glucose) contained in the urine. In order to relate the color tone of color development to the urine sugar value, a standard color tone table is created, and color tone table symbols such as −, ±, (+), +, ++, +++, etc. are attached according to the color tone of the color development. For example, when it is ±, it is determined that the urine sugar value is 50 mg / deciliter. Thus, since the measurement of the urine sugar value by the urine component test paper is simple, it is also used by the subject to grasp the change in the blood glucose level by himself / herself.

  However, since the reaction of the sample component test paper, which is a color test paper, is a chemical reaction, it may be difficult to make an appropriate determination due to the passage of time or conditions based on the color tone of the sample such as urine and waste water. Therefore, the applicant of the present application has proposed a portable sample analyzer including a sample pool portion, a sample detector, a sample detection elapsed timer, a sensor unit for color measurement, and the like in Patent Document 1.

  In addition, when the reaction of the specimen component test paper is detected by an optical sensor, accurate determination may be difficult under the influence of external light. Therefore, the applicant of the present application has proposed a colored test paper in Patent Document 2 in which a test piece is attached to a stick-shaped base that is colored black at least on one side and has a light shielding property.

Japanese Patent No. 3738357 Japanese Patent No. 3684458

  According to the configuration of the portable sample analyzer in Patent Document 1, the sample can be reliably put on the sample component test paper by the sample pool portion, and the color reaction time is managed by the sample detection elapsed timer. Therefore, analysis with good reproducibility can be performed. In addition, since the color reaction is detected using the sensor unit, the sample component can be objectively determined. Further, by using the color test paper in Patent Document 2, that is, the specimen characteristic test paper, the influence of external light or the like can be suppressed.

  The inventor of the present application has studied the technique of Patent Document 1 and recognized that it is troublesome to mount the specimen characteristic test paper, and that it can be easily mounted leads to convenience. In consideration of the technique of Patent Document 2, it has been recognized that it is excellent in performance to easily attach a specimen component test paper having a light shielding property.

  An object of the present invention is to provide a test paper mounting device capable of easily mounting a sample component test paper on a portable sample analyzer. Another object is to provide a test strip magazine that can store a plurality of specimen component test strips. Yet another object is to provide a magazine holder that can hold a test strip magazine in a replaceable manner. The following means contribute to at least one of these purposes.

The test paper magazine according to the present invention is a test paper magazine in which a plurality of specimen component test papers are pressed and aligned in one direction by an external pressing force, and the specimen component test papers can be pushed out from a delivery port by an external pushing force. A box-shaped housing portion having an internal space for storing a plurality of specimen component test papers arranged in the plate thickness direction, and the same planar shape as the specimen component test paper disposed in the internal space of the box-like housing portion A pressing plate that contacts the specimen component test paper on one side surface and receives an external pressing force that presses the specimen component test paper in the alignment direction on the other side surface, and a pressing plate that is a side surface portion of the box-shaped housing portion. side portion after the second side surface of face each other and provided across the bottom surface of the box-shaped casing, and the notch opening for supplying the pressing force on the other side of the pressing plate, the upper surface of the box-shaped casing The tip of the specimen component test paper provided and aligned Of one and the apertured test paper outlet dimensions which can vertically, a uniform slit width before over the side portions in the vertical direction box-shaped casing specimen component test piece a side portion of the is pressed And a slit for supplying a pushing force for pushing the specimen component test paper upward, and the slit is formed along the thickness direction of the specimen component test paper in the lower surface portion of the box-shaped housing portion. As the length of the opening, it has an extrusion length that is the length of the front side surface portion of the box-shaped housing portion plus the thickness of the specimen component test paper, and in the upper surface portion of the box-shaped housing, The slit is connected to the test paper feed outlet and has a length corresponding to the extrusion length as the length of the opening along the plate thickness direction of the specimen component test paper, and the extrusion is defined by the extrusion length and the slit width. An external pushing force can be supplied to the specimen component test paper using the surface.

In the test paper magazine according to the present invention, the length along the alignment direction of the sample component test paper in the internal space of the box- shaped housing portion is the maximum number of the sample component test paper stored in the sample component test paper. It is preferable to correspond to the length obtained by multiplying the plate thickness by the thickness of the pressing plate.

In the test paper magazine according to the present invention, it is preferable that the pressing plate has a thickness twice that of the specimen component test paper .

  Further, it is preferable that the pressing plate has the same outer shape and dimensions as the specimen component test paper and can be pushed out from the delivery port by an external pushing force in the same manner as the specimen component test paper.

  Further, in the test paper magazine according to the present invention, the box-shaped housing portion includes a plurality of sample components, with the sample component test paper in the order of being pushed out last having a mark different from other normal sample component test papers. It is preferable to store the test papers aligned in the thickness direction.

Also, the magazine holder according to the present invention, there is provided a magazine holder for holding the test piece magazine can be housed in alignment pressing a plurality of specimen component test piece in one direction by an external pressing force interchangeably, test paper The magazine has a box-shaped housing part having an internal space for storing a plurality of specimen component test papers arranged in the plate thickness direction, and the same planar shape as the specimen component test papers arranged in the internal space of the box-like housing part A pressing plate that contacts the specimen component test paper on one side surface and receives an external pressing force that presses the specimen component test paper in the alignment direction on the other side surface, and a pressing plate that is a side surface portion of the box-shaped housing portion. The test paper magazine is provided with a notch opening provided over the rear side surface where the other side surfaces of the pressing plate face each other and the bottom surface of the box-shaped housing portion for supplying pressing force to the other side surface of the pressing plate. Magaji held interchangeably Holder, the frame-shaped housing part and, biasing for pressing the specimen component test piece in one direction to be stored in the test paper magazine having a receiving space for replaceably accommodating the sides of the test strip magazine guide supporting and Means and a mounting portion provided on the frame-shaped housing portion for attaching the biasing means.

  In the magazine holder according to the present invention, the attachment portion is provided on the bottom surface portion of the frame-shaped housing portion, and the urging means has the root portion attached to the attachment portion, and the tip portion is stored in the test paper magazine. A torsion spring capable of applying a pressing force to the specimen component test paper is preferable.

  In the magazine holder according to the present invention, the frame-shaped housing portion is a lock portion that guides the test paper magazine into the storage space and fixes the holding position. When the lock by the lock portion is released, the torsion spring It is preferable to have a lock portion that can push the test paper magazine out of the storage space by the urging force.

  A test paper mounting device according to the present invention is a test paper mounting device for mounting a sample component test paper to a portable sample analyzer having a test paper holding unit for holding a sample component test paper at the tip, and a plurality of samples A test paper magazine that has component test papers arranged and stored, and has a delivery port for sending out the test paper one by one, a magazine holder that holds the test paper magazine in an exchangeable manner, and a plurality of specimen component test papers that are stored in the test paper magazine The test paper urging means for urging the test paper toward the delivery port in the order of alignment, the position of the delivery port and the position of the test paper holding part of the portable sample analyzer are combined, and one sample at the delivery port An extruding mechanism for extruding the component test paper to the test paper holding unit, and the extruding mechanism is provided in the guide case for guiding the magazine holder to be movable in the direction of extruding the specimen component test paper at the delivery port, and the guide case , Test paper An extruding unit arranged at a position pressed against a single specimen component test paper at the gadine delivery port, and in response to the movement of the magazine holder, the single specimen component test paper at the delivery outlet is moved to the test paper magazine. And an extruding part extruded from the inside.

  The magazine holder is a tip guide portion into which the tip portion of the portable sample analyzer fits, and when the tip portion gets stuck, the sample component test paper pushed out from the delivery port is received by the test paper holder. As described above, it is preferable to have a tip guide portion in which the position of the delivery port of the specimen component test paper is arranged.

  Moreover, it is preferable that the guide case guides the magazine holder between two positions: an extrusion position where the specimen component test paper is pushed out by the extrusion section, and a normal position where it does not interfere with the extrusion section.

  The guide case has a cylindrical shape that holds the outer shape of the magazine holder and guides the magazine holder so as to be movable in the longitudinal direction. The guide case has an engaging portion that holds the magazine holder in a normal position on the upper portion of the cylindrical shape. And it is preferable to have a stop part which hold | maintains a magazine holder in an extrusion position in the cylindrical lower part.

  Moreover, it is preferable that an extrusion mechanism has a holder biasing means which biases a magazine holder from an extrusion position toward a normal position.

  The test paper mounting device according to the present invention is a test paper mounting device for mounting a sample component test paper on a portable sample analyzer having a test paper holding unit for holding a sample component test paper at the tip. Specimen component test papers are arranged and stored, a test paper magazine having a delivery port for sending out one by one, a magazine holder for holding the test paper magazine in an exchangeable manner, and a plurality of specimen components stored in the test paper magazine A test paper urging means for urging the test papers toward the delivery port in the order of alignment, and a tip guide provided on the magazine holder, into which the tip of the portable sample analyzer fits, and the tip is A leading edge guide portion in which the position of the delivery port of the specimen component test paper is arranged so that the specimen component test paper pushed out from the delivery port is received by the test paper holding portion when being fitted, and the position of the delivery port Portable specimen An extrusion mechanism that aligns the position of the test paper holding unit of the analyzer and pushes one specimen component test paper at the delivery port to the test paper holding unit, and the extrusion mechanism has the sample component test paper at the delivery port The magazine holder is configured to guide the magazine holder so that the magazine holder can be moved in two directions: an extrusion position where the specimen component test paper is extruded by the extruding part, and a normal position where the magazine holder does not interfere with the extruding part. A guide case that guides between positions, and an extrusion unit that is provided in the guide case and is disposed at a position where it is pressed against one specimen component test paper at the outlet of the test paper magazine, and the movement of the magazine holder And a pushing unit that pushes one specimen component test paper at the delivery port relatively from the test paper magazine, and a holder biasing means that biases the magazine holder from the pushing position toward the normal position. When the tip of the portable sample analyzer is fitted to the tip guide of the magazine holder in the normal position, the magazine holder is pushed to the pushing position by moving the portable analyzer to the tip guide, One sample component test paper is pushed out from the outlet of the test paper magazine to the test paper holder of the portable analyzer by the action of the unit.

  With at least one of the above configurations, the test paper magazine can store a plurality of specimen component test papers pressed and aligned in one direction by an external pressing force, and can push out the specimen component test papers from the delivery port by an external pushing force. . As described above, since the test paper magazine can store a plurality of sample component test papers, it is easy to mount the sample component test paper on the portable sample analyzer by using this test paper magazine. .

  A plurality of specimen component test papers are arranged in the internal space of the box-shaped housing part, and an opening for supplying pressing force is provided. As described above, since the element or the like that generates the pressing force is not disposed in the internal space of the box-shaped housing portion in principle, the efficiency of storing the specimen component test paper in the test paper magazine can be improved.

  In addition, a test paper feed outlet that is opened with a dimension that allows the top one of the specimen component test papers to be moved up and down, and a slit for supplying a pushing force for pushing the specimen component test paper upward. Is provided. The slit is the length of the opening along the plate thickness direction of the specimen component test paper, and is the length obtained by adding the plate thickness of the specimen component test paper to the thickness of the front side surface portion of the box-shaped casing. An external pushing force can be supplied to the specimen component test paper using an extrusion surface having a length and defined by an extrusion length and a slit width. In this way, since the external pushing force can be supplied to the specimen component test paper using an extrusion surface wider than the cross-sectional area of the specimen component test paper to extrude the specimen component test paper, the pushing member can be enlarged and its strength can be increased. it can.

In addition, the length along the alignment direction of the specimen component test paper in the internal space of the box- shaped casing is the length obtained by multiplying the maximum number of specimen component test papers stored by the plate thickness of the specimen component test paper, Since it corresponds to the length of the pressing plate plus the thickness, the storage efficiency of the specimen component test paper in the test paper magazine can be improved to near the theoretical limit.

  A pressing plate that receives the pressing force is disposed in the internal space of the box-shaped housing. Accordingly, it is possible to reliably receive the pressing force and transmit the pressing force to the specimen component test paper.

  Further, the pressing plate has the same outer shape and dimensions as the specimen component test paper, and can be pushed out from the delivery port by an external pushing force like the specimen component test paper. Therefore, it is possible to easily notify that the test paper magazine has been used or the replacement time has been reached by pushing out the pressing plate.

  In addition, the specimen component test paper in the last order to be extruded has a different mark from other normal specimen component test papers, so the test paper magazine can be used by extruding the specimen component test paper having a different mark. It is possible to easily notify that it has been completed or it is time to replace it.

  Further, according to at least one of the above-described configurations, the magazine holder holds a test paper magazine that can store a plurality of specimen component test papers pressed and aligned in one direction by an external pressing force in an exchangeable manner. Thus, since the magazine holder can hold the test paper magazine in an exchangeable manner, the use of this magazine holder makes it easy to attach the sample component test paper to the portable sample analyzer.

  The magazine holder includes a frame-shaped housing portion that guides and supports the test paper magazine, an urging means for pressing the sample component test paper stored in the test paper magazine in one direction, and a frame-shaped housing portion. And a mounting portion for attaching the biasing means. As described above, since the portion for storing the test paper magazine and the attaching portion of the biasing means are integrated, the combination of the test paper magazine and the magazine holder including the biasing means can be reduced in size.

  Further, as the urging means, a torsion spring is used, which has a root portion attached to the attachment portion and a tip portion that can apply a pressing force to the specimen component test paper stored in the test paper magazine. Compared with the case of using as a biasing means, a combination of a test paper magazine and a magazine holder including a biasing means can be made smaller.

  In addition, a lock part is provided in the frame-shaped housing part, and when the fixation by the lock part is released, the test paper magazine can be pushed out of the storage space by the urging force of the torsion spring. Becomes easy.

  According to at least one of the above-described configurations, a test paper magazine having a delivery port for storing a plurality of specimen component test papers and feeding them one by one, a magazine holder for holding the test paper magazine in an exchangeable manner, and the specimen component test papers in order. A test paper urging means for urging the test paper toward the delivery port, and an extrusion mechanism for pushing one sample component test paper at the delivery port to the test paper holding unit of the portable sample analyzer. Therefore, by operating the extrusion mechanism, it can be easily attached to the test paper holder of the portable sample analyzer, and it is not necessary to attach the sample component test paper to the test paper holder of the portable sample analyzer.

  Further, the magazine holder is provided with a tip guide portion into which the tip portion of the portable sample analyzer is fitted, and when the tip portion gets stuck, the sample component test paper pushed out from the delivery port is received by the test paper holding portion. Thus, the position of the delivery port of the specimen component test paper is arranged. Therefore, the portable sample analyzer can be easily attached to the test paper holder of the portable sample analyzer by fitting the tip of the portable sample analyzer into the tip guide of the magazine holder and operating the pushing mechanism.

  Further, the magazine holder is guided between two positions: an extrusion position where the specimen component test paper is pushed out by the extruding unit, and a normal position where it does not interfere with the extruding unit. Therefore, the specimen component test paper can be easily pushed out by moving the magazine holder from the normal position to the pushing position.

  Moreover, since it has the latching | locking part which hold | maintains a magazine holder in a normal position, and the stop part hold | maintained in an extrusion position, it becomes easy to move reliably from a normal position to an extrusion position.

  In addition, since the magazine holder is urged from the pushing position toward the normal position, this urging force is resisted when the magazine holder is moved from the normal position to the pushing position. Return to normal position by force. Therefore, after moving from the normal position to the pushing position and extruding the specimen component test paper, no special operation is required and the normal position is restored and the operability is good. It is preferable to have a holder biasing means.

  Also, when the tip of the portable sample analyzer is fitted into the tip guide of the magazine holder in the normal position, the portable analyzer is pressed against the tip guide and the magazine holder is pushed to the pushing position and moved. Since one specimen component test paper is pushed out from the outlet of the test paper magazine to the test paper holder of the portable analyzer by the action, the specimen component test paper is so-called in one-touch operation with the test paper of the portable analyzer. It can be attached to the holding part.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following, the portable sample analyzer to which the test paper loading device is applied will be described as a portable urine analyzer in which the sample is urine. However, even in the case of a sample other than urine, the sample component test paper corresponding to the sample is used. Can be used for portable sample analyzers that need to be mounted.

  As the sample component test paper attached to the portable sample analyzer, PH test paper, semi-quantitative ion test paper, analytical test paper, simple water quality test paper, and the like can be targeted. Semi-quantitative ion test paper includes nitrite ion test paper for detecting nitrite concentration in food additives, nitrate ion test paper for detecting nitrate nitrogen concentration in soil, metals in drinking water and industrial wastewater. It includes a test paper for aluminum ions for detecting ion concentration, a test paper for copper ions, a test paper for metal ions such as a test paper for nickel ions, an ascorbate test paper for detecting vitamin C concentration contained in fruit juice and the like. The test paper for analysis includes zinc test paper for analyzing zinc components, chlorine test paper for analyzing residual chlorine, tin test paper for analyzing tin components, and hexavalent chromium test paper for analyzing hexavalent chromium components. Etc.

  As a sample to be applied to the sample component test paper attached to the portable sample analyzer, for example, a liquid such as factory waste water can be used as a sample as it is. Also, for example, when targeting soil components, dry the soil to be inspected, add purified water and stir well, filter the soil solution with a suitable filter paper, etc., and use this as the sample. Can do.

  To put the sample on the specimen component test paper, literally pour the specimen onto the specimen component test paper, for example, collect a sample such as industrial wastewater in a container, and attach the specimen component test paper to the specimen in the container It is also possible to immerse the portable sample analyzer.

  FIG. 1 is a diagram illustrating a configuration of the test paper loading device 50. FIG. 1A is a front view showing the overall configuration. The test paper loading device 50 includes a device holder 60 that is a cylindrical holder on which the portable sample analyzer 10 is stood, and a test paper that is attached to the portable sample analyzer 10 by feeding the sample component test paper 40 with one touch. The feeding device 100 is arranged side by side on the base 52. FIG. 1B is a side view of the test paper feeding apparatus 100. In FIG. 1, although not a component of the test strip loading device 50, the sample component test strip 40 and the portable sample analyzer 10 are also illustrated.

  The contents of the test paper feeding apparatus 100 will be described in detail later. Further, regarding the structure around the test paper holder in the portable sample analyzer 10, the range related to the test paper mounting will be described later. The specific contents of the specimen component test paper 40 will also be described later. Therefore, here, other components will be described.

  The base 52 is a base or substrate on which the apparatus is placed and attached. For example, a plastic plate having an appropriate thickness can be used. The device holder 60 is a cylindrical member having an opening that is slightly larger than the outer shape of the portable sample analyzer 10. When the portable sample analyzer 10 is not used, it is convenient that the tip of the portable sample analyzer 10 can be inserted or stood into the opening of the device holder 60. In particular, the portable sample analyzer 10 is applied with a liquid sample, and since the tip of the portable sample analyzer 10 may be wet because the liquid sample is subsequently washed, the device holder 60 is provided with a portable sample analyzer. It is convenient to stand or hold the tip of the device 10 until it is dry.

  The test paper feeding device 100 pushes the sample component test paper 40 one by one from a magazine holder that detachably holds a test paper magazine that stores a plurality of sample component test papers 40 and feeds it to the portable sample analyzer 10. It is a device for. In order to perform this test paper feeding in one touch, an operation of pushing the portable sample analyzer 10 into the test paper feeding apparatus 100 is used. That is, only by inserting the portable sample analyzer 10 into the tip guide 156 provided at the tip of the test paper feeding device 100 and pushing it in, the sample component test paper 40 is removed from the test paper magazine by one sample component test paper. 40 is a device having a function of feeding 40 to the test paper holder of the portable sample analyzer 10.

  The test paper feeding apparatus 100 includes a test paper magazine, but a viewing window 130 is provided so that the unused state of the sample component test paper 40 in the test paper magazine can be seen. FIG. 1 shows a state in which a plurality of specimen component test papers 40 and a pressing plate 204 that presses the specimen component test papers 40 in alignment are visible from the viewing window 130 through a transparent test paper magazine. It is preferable to give a special color to the pressing plate 204 so that the state can be seen at a glance.

  FIG. 2 is a diagram showing a test paper feeding apparatus 101 having another configuration. The test paper feeding apparatus 101 is obtained by integrating the test paper feeding apparatus 100, the apparatus holder 60, and the base 52 in FIG. The configuration for feeding the test paper is the same as that of the test paper feeding device 100 in FIG. The test paper feeding apparatus 101 is provided with an analyzer guide unit 157 having a depth sufficient to insert and stand the portable sample analyzer 10. After using the portable sample analyzer 10 or when it is not used, the portable sample analyzer 10 may be inserted into the analyzer guide 157 and waited until, for example, the tip is sufficiently dry. it can. When the portable sample analyzer 10 is used, the sample component test paper 40 is tested by simply pushing the portable sample analyzer 10 toward the lower portion of the test paper feeder 101 from the inserted state. One sample component test paper 40 can be sent from the paper magazine to the test paper holder of the portable sample analyzer 10.

  FIG. 3 is a diagram showing the elements related to the test paper feeding in an exploded manner. 3A is a left side view, and FIG. 3B is a front view. The front view is a view seen from the same direction as FIG. In the front view and the side view, directions of X, Y, and Z are shown. 3A and 3B, in order from the top to the bottom of the paper, the portable sample analyzer 10, the test paper magazine 200 constituting the test paper feeding device 100, the magazine holder 150 holding this, the extrusion A cylindrical case 110 containing the mechanism is shown. Among these, the cylindrical case 110, the magazine holder 150, and the test paper magazine 200 are components of the test paper feeding apparatus 100. The portable sample analyzer 10 is an object to which the sample component test paper 40 is sent by the test paper feeding apparatus 100 and is not a constituent element of the test paper feeding apparatus 100. However, as described above, the portable sample analyzer 10 Since the specimen component test paper 40 of the test paper feeding apparatus 100 is fed by the pushing operation of the test paper feeding apparatus 100, it is closely related to the structure and operation of the test paper feeding apparatus 100.

  The cylindrical case 110 constituting the test paper feeding apparatus 100 has a function of guiding the magazine holder 150 so as to be movable along the axial direction of the cylinder. In this sense, the cylindrical case 110 is a guide case. In accordance with the movement of the test sheet magazine 200, the specimen component test paper 40 in the test paper magazine 200 is pushed out. The latter function corresponds to a test paper extrusion mechanism. The cylindrical case 110 is hollow and has a shape obtained by cutting the top of a substantially quadrangular pyramid, and the inner wall of the internal cavity itself has a guiding function, but further guides the magazine holder 150 as a guiding function for restricting movement. There are three guide grooves. Further, as an extruding part having an extruding function, an extruding convex part 122 provided corresponding to the delivery port 220 of the test paper magazine 200 held by the magazine holder 150 is provided. A coil spring 112 having one end fixed to the bottom is provided in the internal cavity of the cylindrical case 110. The coil spring 112 is a biasing unit having a function of biasing the magazine holder 150 guided by the guide function upward.

  Of the three guide grooves as the guide function, two guide grooves are concave grooves 114 corresponding to the convex bulge 160 provided in the outer shape of the magazine holder 150 so as to extend in the vertical direction. The concave groove 114 extends downward from the upper opening of the cylindrical case 110 along the axial direction of the cylindrical case 110 and has a lower limit end 116. The lower limit end 116 defines the lowest limit position when the magazine holder 150 moves along the axial direction of the cylindrical case 110. In that sense, the lower limit end 116 is also a stop portion of the magazine holder 150. The remaining one guide groove is a concave groove 118 provided corresponding to the stopper convex portion 164 provided on the outer shape of the magazine holder 150. The concave groove 118 has an upper limit end 120 that is slightly below the edge of the upper opening of the cylindrical case 110, and extends downward along the axial direction of the cylindrical case 110. The upper limit end 120 is also a locking portion that locks the magazine holder 150 at this position and defines a maximum upper limit position when moving along the axial direction of the cylindrical case 110.

  The outer shape of the magazine holder 150 including the stopper convex portion 164 is set slightly larger than the inner shape of the internal cavity of the cylindrical case 110. That is, in terms of dimensions, the magazine holder 150 cannot be inserted from the upper opening of the cylindrical case 110, but due to the elasticity of the cylindrical case 110 and the magazine holder 150, the magazine holder 150 is pushed from the opening of the cylindrical case 110, The stopper convex portion 164 can be dropped into the concave groove 118. At that time, the upper end of the coil spring 112 provided inside the cylindrical case 110 supports the bottom surface of the magazine holder 150 and urges it upward, so that the magazine holder 150 has the stopper convex portion 164 with the upper limit of the concave groove 118. Pressed against the edge 120 and settles in that position. This position can be referred to as a normal position because the extrusion convex portion 122 of the extrusion function does not interfere with the magazine holder 150. That is, the upper limit end 120 of the concave groove 118 defines the normal position of the magazine holder 150.

  When the magazine holder 150 is pushed down along the axial direction of the cylindrical case 110, the push-out convex portion 122 of the push-out function interferes with the magazine holder 150, and one specimen component test paper in the test paper magazine 200 is described later. 40 is pushed upward. When the magazine holder 150 is pushed down to the lower limit end 116 of the concave groove 114, at that time, one sample component test paper 40 is completely pushed upward from the test paper magazine 200 so that the lower limit end 116 is reached. And the position of the extrusion convex part 122 are set. Therefore, the position where the magazine holder 150 is pushed down to the lower limit end 116 defines the extrusion position where the specimen component test paper 40 is pushed out.

  Thus, the coil spring 112 of the cylindrical case 110, the lower limit end 116 of the concave groove 114, and the upper limit end 120 of the concave groove 118 have a guide function for guiding the magazine holder 150 to be movable between the normal position and the pushing position. The extruding convex portion 122 has an extruding function for extruding one specimen component test paper 40 from the inside of the magazine holder 150 in accordance with the movement of the magazine holder 150.

  Detailed views of the elements other than the cylindrical case 110 are shown in FIGS. That is, FIG. 4 is a four-sided view of the sample component test paper 40 stored in the test paper magazine 200, FIG. 5 is a three-sided view of a portion related to the test paper feeding in the structure of the portable sample analyzer 10, and FIG. Is a five-side view of the test paper magazine 200, and FIG. 8 is a four-side view of the magazine holder 150. In addition, in order to make correspondence with the left side view and the plan view of FIG.

  The specimen component test paper 40 is a stick-like material that holds a test piece that develops color by applying urine. The “test paper” is conventionally called and can be used as a base material for holding a test piece such as a plastic sheet, a plastic thin plate, a metal thin plate, etc. in addition to a paper material such as so-called Japanese paper or western paper. FIG. 4 shows a four-sided view of the specimen component test paper 40.

  The specimen component test paper 40 includes a plastic base 41 and a test piece 42 that is attached to one surface of the base and develops color when the specimen is applied. The reagent contained in the test piece 42 differs depending on the urine component to be detected. For example, test strips containing different reagents may be used for each detection target such as butter sugar (urine sugar), protein, occult blood, urinary urobrinogen, ketone body, bilirubin, nitrite, and leukocyte. Further, by using a test piece containing a reagent for detecting human chorionic gonadotropin (human chorionic gonadotropin) in the urine component, the pregnancy reaction can be detected by a color reaction. FIG. 4 shows an example in which one kind of test piece 42 is attached. However, two or three kinds of test pieces are attached to one specimen component test paper, and these plural kinds are used in the portable specimen analyzer. The color development of the test pieces may be analyzed simultaneously.

  The base 41 of the specimen component test paper 40 is composed of a black plastic thin plate and has a light shielding property. Even if the whole is not black, at least one surface may be black and the test piece 42 may be shielded from external light.

  The specimen component test paper 40 has a substantially rectangular planar shape, but the base 41 is provided with shallow recesses 46 and 48 before and after the test piece 42 is attached. The front and rear of the test piece 42 correspond to the upstream side and the downstream side when urine flows from the urine pool toward the test piece 42 in the portable sample analyzer 10. Therefore, the recess 46 has an effect of facilitating the flow of urine toward the test piece 42 and the recess 48 has an effect of facilitating the discharge of urine from the test piece.

  The outer periphery of the base 41 of the specimen component test paper 40 has a tapered slope 49. The taper slope 49 is used for the specimen component test paper 40 to be smoothly inserted and held in the test paper holder of the portable sample analyzer 10.

  Indentations 44 are provided on the two long sides of the base of the specimen component test paper 40, respectively. Using the recess 44, a plurality of specimen component test papers 40 can be arranged and stored in the test paper magazine 200. For example, by providing a convex guide corresponding to the recess 44 on the inner wall of the test paper magazine 200, a plurality of specimen component test papers 40 can be arranged in alignment with the convex guide as a guide. Further, it is possible to sequentially move the specimen component test papers 40 arranged in alignment along the convex guide.

  As an example of the dimension of the specimen component test paper 40, the planar dimension is a rectangle of about 19 mm × about 9 mm, and the thickness can be about 1 mm. The planar dimension of the test piece 42 can be about 5 mm square. However, this dimension is merely an example, and can be appropriately changed depending on the application, shape, and the like of the portable sample analyzer 10.

  FIG. 5 is a diagram showing a tip portion of the portable sample analyzer 10, that is, a portion where the sample component test paper 40 is attached and urine is applied thereto. Of the three views of FIG. 5, a cross-sectional view seen from the front direction is shown as corresponding to the front view shown in the XZ plane. A sample reservoir 14 is provided at the tip of the portable sample analyzer 10, and urine is poured into the sample reservoir 14 as shown by the white arrow in FIG. Further, a test paper holding unit 30 for holding the sample component test paper 40 is provided further on the front end side from the sample reservoir 14. The test paper holder 30 is formed with a guide groove corresponding to the tapered slope 49 of the longitudinal side of the specimen component test paper 40 described with reference to FIG. The sample component test paper 40 is held by the test paper holding unit 30 with the side on which the test piece 42 is attached facing the portable sample analyzer 10.

  The tip of the portable sample analyzer 10 is provided with an electronic component storage area 20 that is partitioned by a sample reservoir 14 and a waterproof wall. A sensor unit 24 is disposed in the electronic component storage area 20. The sensor unit 24 includes a light emitting / receiving element 26 and a detection window 28 through which light passes. When the specimen component test paper 40 is held on the test paper holding unit 30, the positional relationship of the test paper holding unit 30 is set so that the test piece 42 and the detection window 28 face each other. At that time, the positional relationship of the test paper holding unit 30 is set so that the pair of conductive terminals 22 comes to the downstream recess 48 described in FIG.

  In such a positional relationship, when the specimen component test paper 40 is attached to the test paper holder 30 and urine is poured into the specimen reservoir 14, the test piece 42 of the specimen component test paper 40 is attached to the urine. Between the surface on the other side and the surface on which the detection window 28 is provided. This flow path becomes the specimen flow path. When the urine flowing through the sample flow path reaches the pair of conductive terminals 22, the resistance between the pair of conductive terminals 22 changes, and the time when the urine is applied is detected. In addition, the sensor unit 24 emits light from the light emitting / receiving element 26, and the reflected light of the test piece 42 that is colored by urine is received by the light receiving / emitting element 26, thereby measuring the degree of color development. In this way, urine detection and color development of the test piece are measured.

  In addition, a pair of guide convex portions 32 whose outer shapes swell are provided at the distal end portion of the portable sample analyzer 10. If it says in a front view, the guidance convex part 32 will be arrange | positioned by extending to a Z direction at each of the front outer wall and back surface outer wall of the front-end | tip part of the portable sample analyzer 10. FIG. Corresponding to the guide convex portion 32, a later-described magazine holder 150 is provided with a convex bulge 160, which functions as a guide when the distal end portion of the portable sample analyzer 10 is inserted.

  A test paper magazine 200 shown in FIG. 6 is a case for storing a plurality of specimen component test papers 40 described with reference to FIG. 4, and includes a slit 222 for feeding the specimen component test papers 40 one by one to the outside. And a delivery port 220. When the test paper magazine 200 is considered as a single unit, it can store a plurality of sample component test papers pressed and aligned in one direction by an external pressing force, and can push out the sample component test papers from the delivery port by an external pressing force. It has a function. Under the configuration described in FIG. 3, an external pressing force is applied by a torsion spring 182 described later, and the external pressing force is applied as a reaction force of the pushing operation of the portable sample analyzer 10 by the pushing projection 122 of the cylindrical case 110. Given.

  When the test strip magazine 200 is mounted on the test strip feeding apparatus 100, the remaining state of the sample component test strip 40 accommodated from the viewing window 130 of the cylindrical case 110 can be viewed as described with reference to FIG. It is desirable to be molded from a transparent plastic so that it can. Of course, only the part corresponding to the viewing window 130 may be made of a transparent material, and the other part may be made of an opaque material.

  The test paper magazine 200 has a box-shaped housing portion 201 having a rectangular parallelepiped shape, and a plurality of specimen component test papers 40 are pressed against the internal space 202 of the box-shaped housing portion 201 in the direction of the delivery port 220. A pressing plate 204 is disposed. On the inner wall of the internal space 202, a plurality of specimen component test papers 40 are arranged so as to be aligned in the plate thickness direction, and a convex shape corresponding to the depression 44 provided on the long side of the specimen component test paper 40. Guides 206 are provided along the alignment direction. The extending direction of the convex guide 206 is the X direction shown in FIG. That is, the specimen component test paper 40 is stored in the internal space 202 of the test paper magazine 200 so that the thickness direction is aligned in the X direction and the long side direction is set in the Z direction.

  Regarding the front and back direction of the specimen component test paper 40, considering the direction in which the specimen component test paper 40 is attached to the test paper holder 30 of the portable specimen analyzer 10 described with reference to FIG. With the front side and the back side facing the delivery port 220 side. By doing so, as shown in FIG. 3B, it is possible to easily adopt a configuration in which the position of the test paper holding unit 30 of the portable sample analyzer 10 is aligned with the position of the delivery port 220 of the test paper magazine 200. Can do. According to this configuration, the direction in which the specimen component test paper 40 is pushed out from the delivery port 220 is the Z direction, which coincides with the axial direction of the cylindrical case 110, that is, the direction in which the cylindrical case 110 guides the magazine holder 150 to be movable. Will do.

In addition to the specimen component test paper 40, the pressing plate 204 is disposed in the internal space 202 of the test paper magazine 200 as described above. No elements other than the specimen component test paper 40 and the pressing plate 204 are arranged in the internal space 202 except that the tip of a torsion spring 182 described later enters the pressing plate 204 to apply a pressing force. That is, in the internal space 202 of the test paper magazine 200, a plurality of specimen component test papers 40 are arranged in a space other than the portion occupied by the pressing plate 204. In other words, the alignment direction of the sample component test paper 40 in the internal space 202 of the box- shaped housing portion 201, that is, the length along the X direction in FIG. This corresponds to the length obtained by multiplying the thickness of the component test paper 40 by the thickness of the pressing plate 204.

  For example, if the thickness of the specimen component test paper 40 is about 1 mm and the maximum number of specimen component test papers 40 is 18 using the dimension example of the specimen component test paper 40 described above, the thickness of the pressing plate 204 is When it is about 2 mm, the length along the X direction of the internal space 202 of the test paper magazine 200 can be set to 18 × 1 mm + 2 mm + α = 20 mm + α. Here, α is a margin dimension that takes into account the dimensional error of each element, and for example, α = 1 mm is sufficient. In this example, the storage efficiency of the specimen component test paper 40 in the internal space 202 is 18/21 = about 86%, which is close to the theoretical storage efficiency 18/20 = 90%. It can be seen that it is stored. In this way, high storage efficiency can be achieved by using a torsion spring 182 as means for applying an urging force to the pressing plate 204 as described above, thereby providing a pressing force to the pressing plate 204, which will be described later. This is because elements other than the specimen component test paper 40 and the pressing plate 204 are not arranged in the internal space 202 except that the front end portion 182 enters.

  The pressing plate 204 is a member that is disposed outside the plurality of specimen component test papers 40 and presses them in the direction of the delivery port 220. As described above, when the test paper magazine 200 is considered as a single unit, the pressing plate 204 is disposed in the internal space 202 of the box-shaped housing unit 201 and contacts the specimen component test paper 40 on one side surface and on the other side surface. It has a function of receiving the pressing force for pressing the specimen component test paper 40 in the alignment direction. The urging force for pressing is given by a torsion spring 182 of the magazine holder 150 to be described later. If the side to which the test piece 42 of the specimen component test paper 40 is applied is pressed, the test piece 42 may be damaged. is there. For these reasons, the specimen component test paper 40 is not directly pressed by the torsion spring 182 but is pressed through the pressing plate 204. The planar shape of the pressing plate 204 is substantially the same as that of the specimen component test paper 40 and has a recess corresponding to the convex guide 206.

  Further, as described with reference to FIG. 3, a marker for allowing the remaining state of the specimen component test paper 40 to be viewed from the observation window 130 is attached to the pressing plate 204, not to the specimen component test paper 40. Is preferred. In short, the pressing plate 204 is used as a means for protecting the specimen component test paper 40 and showing its movement. As the pressing plate 204, an appropriate plastic material processed into an appropriate shape can be used.

  Notches 212 and 214 into which the torsion spring 182 of the magazine holder 150 can enter in order to bias the pressing plate 204 are provided on the bottom surface and the left side surface portion or rear side surface portion of the test paper magazine 200. Since the torsion spring 182 provides a pressing force for pressing and aligning the specimen component test paper 40 in one direction, the notches 212 and 214 can be referred to as openings for supplying the pressing plate 204 with the pressing force. . Further, a convex guide 208 is provided on the upper surface of the test paper magazine 200 as a guide when the test paper magazine 200 is mounted on the magazine holder 150. The convex guide 208 is arranged extending in the X direction. Correspondingly, since a later-described magazine holder 150 is provided with a concave groove 162, the test paper magazine 200 guided by these is mounted on the magazine holder 150 so as to be movable in the X direction, and is attached and detached for replacement. Can be performed freely.

  Further, when the test paper magazine 200 is mounted on the magazine holder 150, a lock convex portion 209 for fixing the position of the test paper magazine 200 to the magazine holder 150 is provided on the upper surface of the test paper magazine 200 separately from the convex guide 208. Provided. Correspondingly, since a lock recess 163 is provided in the magazine holder 150 described later, when the test paper magazine 200 is guided and mounted on the magazine holder 150 by the convex guide 208 and the concave groove 162, for example, a user However, the position of the test paper magazine 200 is fixed with respect to the magazine holder 150 by further pushing in and fitting the lock convex portion 209 into the lock concave portion 163. Further, by performing the pushing operation in the opposite direction of the user, the fixation between the lock concave portion 163 and the lock convex portion 209 can be released, whereby the test paper magazine 200 can be removed from the magazine holder 150.

  A slit 222 and a delivery port 220 are provided on the side surface of the test paper magazine 200 on the side where the specimen component test paper 40 is pressed by the pressing plate 204. In FIG. 6, the pressing plate 204 is arranged on the most + X side of the specimen component test paper 40 arranged in alignment along the X direction, and therefore the slit 222 on the −X side, that is, the left side surface of the test paper magazine 200. And a delivery port 220 are provided.

  The difference between the slit 222 and the delivery port 220 is that the former shows a width that opens when viewed from the left side of the test paper magazine 200, whereas the delivery port 220 is located on the upper surface of the test paper magazine 200. It is provided that the specimen component test paper 40 shows an opening portion that is set to a dimension that can be exactly moved up and down. The delivery port 220 is provided at a position inside the opening of the slit 222 on the left side surface of the test paper magazine 200. The opening width of the slit 222 is narrower than the width of the delivery port 220. This is shown in the top view of FIG. In the bottom view, it is shown as a slit 224. Therefore, one sample component test paper 40 on the leftmost side of the sample component test paper 40 pressed to the delivery port 220 side by the pressing plate 204 is a wall corresponding to the difference in width between the delivery port 220 and the slit 222, that is, It strikes against the inner wall of the front side surface of the test paper magazine 200 and stops there. That is, when viewed from the pressing plate 204, the first specimen component test paper 40 is positioned just at the delivery port 220 by the urging force of the pressing plate 204.

  As described above, the delivery port 220 is an opening having a function of feeding the top one of the sample component test papers 40 arranged and stored in the internal space 202 of the test paper magazine 200 to the outside of the test paper magazine 200. is there. The delivery port 220 is provided on the upper surface of the box-shaped housing unit 201 and is opened with a dimension that allows the top one of the aligned specimen component test papers 40 to be moved up and down. That is, the width dimension that is the dimension in the Y direction of the opening of the delivery port 220 is slightly larger than the width of the specimen component test paper 40, and the length dimension that is the dimension in the X direction is slightly larger than the thickness of the specimen component test paper 40. It is set large.

The slits 222 and 224 are openings provided in the side surface portion of the box- shaped housing portion 201 and having a uniform slit width in the vertical direction on the front side surface portion to which the sample component test paper 40 is pressed. It has a function of providing a space for supplying a pushing force for pushing the component test paper 40 upward. Specifically, the pushing convex portion 122 of the cylindrical case 110 moves relatively in the slits 222 and 224, thereby giving a pushing force to the lower end portion of the specimen component test paper 40.

  The slit 222 is provided over the entire range in the Z direction on the left side surface of the test paper magazine 200, as shown in the top view, the bottom view, and the like in FIG. In the bottom view, it is shown as a slit 224.

  The dimensions of the slits 222 and 224 will be further described. In the lower surface portion of the box-shaped housing portion 201, the slit 224 has an opening length along the plate thickness direction of the specimen component test paper 40. This is a length obtained by adding the plate thickness of the specimen component test paper 40 to the thickness of the front side surface portion. In addition, the slit 222 is connected to the test paper delivery port 220 on the upper surface of the box-shaped housing. Of the connected openings, the portion corresponding to the width of the slit 222 also functions as the test paper delivery port 220. And has the function of the slit 222. That is, it is a part of the test paper delivery port 220 and a part of the slit 222. Therefore, the slit 222 has a length of the opening along the thickness direction of the specimen component test paper 40, and the specimen component test is performed to the thickness of the front side surface portion of the box-shaped housing portion 201, similarly to the length of the slit 224. This is the length of the paper 40 plus the plate thickness.

  As described above, the extrusion convex portion 122 of the cylindrical case 110 moves relatively in the slits 222 and 224, so that a pushing force is applied to the lower end portion of the sample component test paper 40. When the length obtained by adding the plate thickness of the specimen component test paper 40 to the thickness of the front side surface portion of the body portion 201 is called an extrusion length, the region of the extrusion surface defined by the extrusion length and the slit width is used. The pushing projection 122 can be moved relatively, and the pushing force can be supplied to the specimen component test paper 40.

  As described above, the slits 222 and 224 correspond to the protruding protrusions 122 of the cylindrical case 110, and similar ones are also provided as slits 172 and 176 in the magazine holder 150 described later. Accordingly, when the test paper magazine 200 mounted on the magazine holder 150 moves in the Z direction in the cylindrical case 110, the push-out convex portion 122 relatively moves in the slits 222, 224, 172, and 176. Will move. That is, when the magazine holder 150 is pushed down in the cylindrical case 110, the extrusion convex portion 122 moves relatively upward in the slits 222 and 224 of the test paper magazine 200, and there is a specimen component test. If there is paper 40, it is pushed upward.

  This is schematically shown in FIG. Here, a state is shown in which when the test paper magazine 200 moves in the −Z direction, the extrusion convex portion 122 pushes out one sample component test paper 40 at the delivery port 220 of the test paper magazine 200 in the + Z direction. As shown in FIG. 7, by providing the slit 222, the thickness of the extruded convex portion in the X direction can be made thicker than the thickness of the specimen component test paper 40, the extrusion can be reliably performed, and the extruded convex portion 122. The strength of can be made sufficient.

  Returning to FIG. 6, two slide convex portions 210 are provided on the outer wall surfaces on both sides of the slits 222 and 224 on the left side surface of the test paper magazine 200. The slide protrusion 210 is arranged extending in the Z direction. The slide convex portion 210 is provided to reduce the contact area with the inner surface of the cylindrical case 110 when the test paper magazine 200 mounted on the magazine holder 150 moves in the cylindrical case 110 in the Z direction. It is what was done. Thereby, the frictional resistance when the test paper magazine 200 moves in the Z direction in the cylindrical case 110 can be suppressed.

  In the above, the test paper magazine 200 is made transparent, the specimen component test paper 40 and the pressing plate 204 are stored in the internal space 202 of the box-shaped housing portion 201, and the specimen component test paper 40 is sent out one by one. It was described as being extruded from 220. In addition to this, the following modifications are possible.

  For example, the pressing plate 204 can have a function as a moisture absorption preventing material. In this case, in addition to forming the pressing plate with the moisture absorption preventing material itself, a structure in which the moisture absorption preventing material is included in a part of the pressing plate 204 can be adopted. As the moisture absorption preventing material, an appropriate material such as silica gel can be used.

  For example, the outer shape and dimensions of the pressing plate 204 may be the same as those of the sample component test paper 40 so that the pressing plate 204 can be pushed out from the delivery port by an external pushing force in the same manner as the sample component test paper 40. In this case, it is possible to notify that the test paper magazine 200 has been used or it is time to replace it by pushing out the extrusion plate 204.

  For example, a pressing plate may not be used. In this case, the pressing force is received by the specimen component test paper in the order of the last extrusion. Therefore, it is preferable that the specimen component test paper in the order of being pushed out is different from other normal specimen component test papers and is not used for analysis of the specimen components. Of course, if you think that there is no problem with the analysis, you can use it as it is.

  In addition, a mark different from other normal sample component test papers may be attached to the sample component test papers in the order of being pushed out last. This may be a case where a pressing plate is used, or a case where a pressing plate is not used. In this way, by attaching a mark indicating that it is different from other normal specimen component test papers, it is possible to inform that the one with the mark is the specimen component test paper that was pushed out last. As a mark, a mark of a color different from black can be attached, and the base of the specimen component test paper itself can be a color different from black. As a color different from black, it is possible to use red or pink, which is generally used to notify the replacement time. In addition, the difference from black can be clarified using white.

  Further, the test paper magazine 200 may be made of a material that is not transparent. In this case, since the usage status of the specimen component test paper 40 cannot be visually determined, as described above, the configuration in which the pressing plate is finally pushed out, or other specimen component test paper different from normal is pushed out last. It is preferable to adopt a configuration.

  The magazine holder 150 shown in FIG. 8 holds the test paper magazine 200, and is further provided between the portable sample analyzer 10 and the cylindrical case 110 as shown in FIG. This is an element that functions to exert an action as an extruding mechanism of the cylindrical case 110 by the pushing operation of the mold sample analyzer 10. Here, when the magazine holder 150 is considered as a single unit, this has a function to replaceably hold a test paper magazine capable of storing a plurality of specimen component test papers pressed and aligned in one direction by an external pressing force. . Under the configuration described in FIG. 3, the external pressing force is applied by the torsion spring 182.

  The magazine holder 150 is provided on the bottom surface of the frame-shaped housing portion 152 and has a storage space in which the side surface of the test paper magazine 200 is guided and supported so as to be exchangeable. A torsion spring 182 is attached to the magazine holder 150. It is a composite part having a spring mounting portion 154 and a tip guide portion 156 that is provided on the upper surface of the frame-shaped housing portion 152 and into which the tip portion of the portable sample analyzer 10 can be inserted. Thus, the function of storing and holding the test paper magazine 200, the function of biasing the specimen component test paper 40 stored in the test paper magazine 200, the function of attaching the biasing means, and the portable sample Since the analysis apparatus 10 is integrated with the function of inserting the tip of the analyzer 10, the overall size can be reduced.

  The frame-shaped casing 152 is a frame having a storage space 158 that detachably stores and holds the test paper magazine 200. The storage space 158 has an inner shape that is slightly larger than the outer shape of the test paper magazine 200. A viewing window 166 corresponding to the viewing window 130 provided in the cylindrical case 110 is provided on a side surface of the frame-shaped casing 152 as viewed from the front.

  Further, a concave groove 162 corresponding to the convex guide 208 provided on the upper surface of the test paper magazine 200 is disposed in the upper ceiling of the storage space 158 of the frame-shaped casing 152 so as to extend in the X direction. Corresponding to the slits 222 and 224 of the test paper magazine 200, slits 174 and 176 are provided on the left side surface of the frame-shaped casing 152. Furthermore, a notch 184 for allowing the torsion spring 182 to enter is provided on the bottom surface of the frame-shaped housing portion 152. This notch 184 corresponds to the notch 212 on the bottom surface of the test paper magazine 200.

  A lock recess 163 corresponding to the lock protrusion 209 provided on the upper surface of the test paper magazine 200 is disposed on the upper ceiling of the storage space 158 of the frame-shaped casing 152. As described above, the position of the test paper magazine 200 is fixed with respect to the magazine holder 150 by, for example, the user performing a further pushing operation to fit the lock convex portion 209 into the lock concave portion 163, and the user pushes out in the opposite direction. By performing the operation, the fixation between the lock recess 163 and the lock protrusion 209 can be released. Since the test paper magazine 200 is given a biasing force by the torsion spring 182 via the specimen component test paper 40, the test paper magazine 200 is placed on the frame-shaped casing 152 when the fixation is released. It will be pushed out of the storage space 158 automatically. This action facilitates the removal of the test paper magazine 200 from the magazine holder 150.

  In addition, a convex bulge 160 is formed on the front outer wall and the rear outer wall of the frame-shaped casing 152 and the front end guide 156. The convex bulge 160 is formed as a bulge in the frame-shaped housing portion 152 where the thickness of the front outer wall and the rear outer wall is increased, and the tip guide portion 156 is formed as an overhang with the same plate thickness and the outer shape protruding outward. Is done. The outer shape of the convex bulge 160 corresponds to the concave groove 114 of the cylindrical case 110, and these act as a guide when the magazine holder 150 moves in the Z direction in the cylindrical case 110. Further, the inner shape portion of the convex bulge 160 in the tip guide portion 156 corresponds to the guide convex portion 32 provided at the tip portion of the portable sample analyzer 10, and these are the tips of the portable sample analyzer 10. It acts as a guide when the part is inserted into the tip guide part 156.

  As described above, the slits 174 and 176 are provided on the left side surface of the frame-shaped housing portion 152, but the slit 174 provided on the upper surface of the left side surface is connected to the slit 172 provided on the bottom surface of the tip guide portion 156. Yes. In addition, a delivery port 170 through which the specimen component test paper 40 is pushed out is provided on the bottom surface of the tip guide unit 156 in connection with the slit 172. The delivery port 170 corresponds to the delivery port 220 of the test paper magazine 200. The outlet 170 is disposed at a position corresponding to the test paper holder 30 of the portable sample analyzer 10 when the tip of the portable sample analyzer 10 is inserted into the tip guide 156. Therefore, as described with reference to FIG. 7, when the specimen component test paper 40 is pushed out above the test paper magazine 200 by the action of the extrusion convex portion 122, the one specimen component test paper 40 becomes the test paper. It is received by the test paper holder 30 of the portable sample analyzer 10 through the outlet 220 of the magazine 200 and the outlet 170 of the magazine holder 150, and the test piece 42 is positioned and attached to the sensor unit 24 so as to face each other. It will be.

  A stopper convex portion 164 is provided on the outer wall on the right side surface in the vicinity of the boundary between the frame-shaped housing portion 152 and the tip guide portion 156. The stopper convex portion 164 is a convex portion that slightly raises the outer shape of the magazine holder 150, and the magazine holder 150 cannot normally be pushed into the cylindrical case 110 due to the convex portion. Corresponding to the stopper convex portion 164, the cylindrical case 110 is provided with the concave groove 118 as described above. The operation of the stopper convex portion 164 is to hold the magazine holder 150 in the normal position as described in connection with the concave groove 118 of the cylindrical case 110.

  A torsion spring 182 is attached to the spring attachment portion 154 of the magazine holder 150 around an attachment shaft 180 extending in the Y-axis direction. The torsion spring 182 is an urging means for pressing the sample component test paper 40 stored in the test paper magazine 200 in one direction. Specifically, the root portion is attached to the attachment shaft 180 and rotates around the attachment shaft 180 to generate an urging force in the X-axis direction perpendicular to the Y-axis at the tip portion. When the test paper magazine 200 is mounted on the magazine holder 150, the tip of the torsion spring 182 pushes the back surface of the pressing plate 204 of the test paper magazine 200 to urge the pressing plate 204 in the X-axis direction. As shown in FIG. 3 and the like, the biasing direction is a direction in which each specimen component test paper 40 is pressed against the delivery port 220 side in the test paper magazine 200.

  In this way, when the test paper magazine 200 is mounted on the magazine holder 150, the specimen component test paper 40 stacked and arranged in the X direction on the test paper magazine 200 is arranged in the X direction by the action of the torsion spring 182. It is energized in the direction of. Therefore, when one specimen component test paper 40 is pushed out from the delivery port 220, the next specimen component test paper 40 moves to the vacant space by the urging force and comes to the position of the delivery port 220. That is, the torsion spring 182 is a means for urging the plurality of specimen component test papers 40 that are stacked and arranged in an aligned manner in the order of stacking and alignment.

  FIG. 9 is a diagram schematically illustrating the extrusion function of the test paper feeding apparatus 100 having such a configuration. FIG. 9A is a diagram showing a case where the magazine holder 150 is in a normal position with respect to the cylindrical case 110, and the extrusion convex portion 122 of the cylindrical case 110 is in contact with the specimen component test paper 40 in the magazine holder 150. Not done. Each specimen component test paper 40 in the test paper magazine mounted on the magazine holder 150 is urged and pressed toward the delivery port 170 by the torsion spring 182 and the pressing plate 204. FIG. 9B is a diagram showing a state in which the portable sample analyzer 10 is inserted into the tip guide portion of the magazine holder 150 and the magazine holder 150 is pushed in the direction of the arrow. Here, the extrusion convex part 122 of the cylindrical case 110 is in contact with one specimen component test paper 40 in the magazine holder 150 and pushed upward. That is, by pushing the portable sample analyzer 10 in the direction of the arrow, the magazine holder 150 moves relatively downward with respect to the extrusion convex portion 122, and as a result, the extrusion convex portion 122 moves the specimen component test paper 40 upward. Extrude into.

  FIG. 10 is a diagram showing a state in which a new sample component test paper 40 is automatically sent to and attached to the portable sample analyzer 10 over time by the operation of pushing the portable sample analyzer 10 into the test paper feeder 100. It is. FIG. 10A shows a state where the portable sample analyzer 10 has not yet been inserted into the test strip feeding apparatus 100. At this time, the magazine holder 150 is in a normal position with respect to the cylindrical case 110. The detailed view shown in FIG. 10A is for the XZ cross section, and shows that the upper end 120 of the concave groove 180 of the cylindrical case 110 regulates the stopper convex portion 164 of the magazine holder 150. Yes. The magazine holder 150 is held at the normal position by the biasing force of the coil spring 112 and the restriction action of the upper limit end 120. In the normal position, the pushing projection 122 of the cylindrical case 110 is not in contact with the specimen component test paper 40.

  FIG. 10B is a diagram showing the middle when the portable sample analyzer 10 is inserted into the tip guide portion of the test strip feeding apparatus 100 and pushed in the direction of the arrow against the urging force of the coil spring 112. is there. The detailed view shown in FIG. 10B shows a state in which the protruding protrusion 122 of the cylindrical case 110 moves relatively in the slit 222 and pushes up the specimen component test paper 40 upward.

  FIG. 10C is a diagram showing a state where the portable sample analyzer 10 is further pushed in the direction of the arrow and reaches the lowest limit. The detailed view shown in FIG. 10C shows a state in which the magazine holder 150 hits the lower limit end 116 of the concave groove of the cylindrical case 110 and cannot move further downward. In this state, the sample component test paper 40 pushed out from the magazine holder 150 is completely pushed out of the test paper magazine by the extrusion convex part 122 and is put on the test paper holding part at the tip of the portable sample analyzer 10. It has been sent. Therefore, the position of the magazine holder 150 in this state is the extrusion position.

  FIG. 10D is a diagram showing a state in which the portable sample analyzer 10 is pulled up again after being pushed to the lower limit in FIG. 10C. Here, a state in which a new sample component test paper 40 is attached to the portable sample analyzer 10 is shown. At this time, the magazine holder 150 returns to the normal position again by the biasing force of the coil spring of the cylindrical case 110. Therefore, since the state returns to the state of FIG. 10A, when it is necessary to attach a new specimen component test paper 40 to the portable specimen analyzer 10 at the next necessary time, the portable specimen analyzer 10 is fed into the test paper. What is necessary is just to insert in the apparatus 100 and push down to the minimum. In this way, the new sample component test paper 40 can be attached to the portable sample analyzer 10 only by a one-touch operation of inserting the portable sample analyzer 10 into the test paper feeder 100 and pushing it down to the lowest limit. it can.

It is a figure which shows the structure of the test paper mounting apparatus in embodiment which concerns on this invention. It is a figure which shows another structural example of the test paper mounting apparatus in embodiment which concerns on this invention. In the embodiment according to the present invention, FIG. In embodiment which concerns on this invention, it is a four-plane figure of the specimen component test paper. In embodiment concerning this invention, it is a three-plane figure of the part regarding test-sheet feeding among the structures of a portable sample analyzer. In embodiment which concerns on this invention, it is a 5th page figure of a test paper magazine. In embodiment which concerns on this invention, it is a schematic diagram which shows a mode that the sample component test paper is extruded from a test paper magazine. In embodiment which concerns on this invention, it is a four-sided view of a magazine holder. In embodiment concerning this invention, it is a figure which illustrates typically the extrusion function of a test paper feeding apparatus. In embodiment which concerns on this invention, it is a figure which shows a mode that a new sample component test paper is sent and attached to a portable sample analyzer with one touch.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Portable sample analyzer, 14 Sample accumulation part, 20 Electronic component storage area, 22 Conductive terminal, 24 Sensor part, 26 Light emitting / receiving element, 28 Detection window, 30 Test paper holding part, 32 Guide convex part, 40 Sample component Test paper, 41 Base, 42 Test piece, 44, 46, 48 Recess, 49 Tapered slope, 50 Test paper mounting device, 52 Base, 60 Device holder, 100, 101 Test paper feeding device, 110 Cylindrical case, 112 Coil spring, 114, 118, 162, 180 Groove, 116 Lower limit end, 120 Upper limit end, 122 Extrusion convex portion, 130, 166 Viewing window, 150 Magazine holder, 152 Frame-shaped housing portion, 154 Spring mounting portion, 156 Tip guide Part, 157 analyzer guide part, 158 storage space, 160 convex bulge, 163 lock concave part, 164 stopper convex part 170, 220 Outlet, 172, 174, 176, 222, 224 Slit, 180 Mounting shaft, 182 Torsion spring, 184, 212, 214 Notch, 200 Test paper magazine, 201 Box-shaped housing, 202 Internal space, 204 Pressing plate, 206 convex guide, 208 convex guide, 209 lock convex portion, 210 slide convex portion.

Claims (14)

A test paper magazine capable of pressing and aligning a plurality of specimen component test papers in one direction by an external pressing force and storing the specimen component test papers from an outlet by an external pushing force,
A box-shaped housing portion having an internal space for storing a plurality of specimen component test papers aligned in the thickness direction;
External pressing that is arranged in the internal space of the box-shaped housing and has the same planar shape as the sample component test paper, contacts the sample component test paper on one side, and presses the sample component test paper in the alignment direction on the other side A pressing plate that receives the force,
A side surface portion of the box-shaped housing portion, which is provided across the rear side surface faced to the other side surface of the pressing plate and the bottom surface of the box-shaped housing portion, for supplying pressing force to the other side surface of the pressing plate. A notch opening,
A test paper feed port provided on the upper surface of the box-shaped housing portion and opened in such a size that the top one of the aligned specimen component test papers can be moved up and down;
The side surface portion of the box- shaped housing portion is provided with a uniform slit width in the vertical direction on the front side surface portion to which the specimen component test paper is pressed, and pushes the specimen component test paper upward. A slit to supply,
Including
In the lower surface of the box-shaped casing, the slit is the length of the opening along the thickness direction of the specimen component test paper, and the thickness of the specimen component test paper is the thickness of the front side surface of the box-shaped casing. Has an extrusion length that is the length plus
In the upper surface portion of the box-shaped housing, the slit is connected to the test paper delivery port, and has a length corresponding to the extrusion length as the length of the opening along the thickness direction of the specimen component test paper,
A test paper magazine characterized in that an external pushing force can be supplied to a specimen component test paper using an extrusion surface defined by an extrusion length and a slit width. In the test strip magazine according to claim 1,
The length along the alignment direction of the specimen component test paper in the internal space of the box- shaped casing is the length obtained by multiplying the maximum number of specimen component test papers stored by the thickness of the specimen component test paper. A test paper magazine characterized by its length corresponding to the length of the product. In the test strip magazine according to claim 1,
The test paper magazine , wherein the pressing plate has a thickness twice that of the specimen component test paper . In the test strip magazine according to claim 1 ,
A test paper magazine, wherein the pressing plate has the same outer shape and dimensions as the specimen component test paper, and can be pushed out from the delivery port by an external pushing force in the same manner as the specimen component test paper. In the test strip magazine according to claim 1 or claim 3,
The box-shaped housing
The test is characterized in that the specimen component test paper in the last order to be extruded has a mark different from that of other normal specimen component test papers, and a plurality of specimen component test papers are aligned and stored in the thickness direction. Paper magazine. A magazine holder that holds an exchangeable test paper magazine that can hold a plurality of specimen component test papers pressed and aligned in one direction by an external pressing force,
The test strip magazine
A box-shaped housing portion having an internal space for storing a plurality of specimen component test papers aligned in the thickness direction;
External pressing that is arranged in the internal space of the box-shaped housing and has the same planar shape as the sample component test paper, contacts the sample component test paper on one side, and presses the sample component test paper in the alignment direction on the other side A pressing plate that receives the force,
A side surface portion of the box-shaped housing portion, which is provided across the rear side surface faced to the other side surface of the pressing plate and the bottom surface of the box-shaped housing portion, for supplying pressing force to the other side surface of the pressing plate. A notch opening,
With
The magazine holder that holds this test strip magazine interchangeably
A frame-shaped housing portion having a storage space for guiding and supporting the side surface of the test paper magazine and storing it in a replaceable manner;
An urging means for pressing the specimen component test paper stored in the test paper magazine in one direction;
A mounting portion that is provided in the frame-shaped housing portion and attaches the urging means;
A magazine holder characterized by containing. The magazine holder according to claim 6, wherein
The mounting portion is provided on the bottom surface of the frame-shaped housing portion,
The magazine holder, wherein the biasing means is a torsion spring having a root portion attached to the attachment portion and a tip portion capable of applying a pressing force to the specimen component test paper stored in the test paper magazine. The magazine holder according to claim 7,
The frame-shaped housing unit is a lock unit that guides the test paper magazine into the storage space and fixes the holding position. When the lock by the lock unit is released, the test paper magazine is stored in the storage space by the urging force of the torsion spring. A magazine holder having a lock portion that can be pushed out from the magazine. A test paper mounting device for mounting a sample component test paper on a portable sample analyzer having a test paper holding unit for holding a sample component test paper at the tip,
A test paper magazine having a plurality of specimen component test papers arranged and stored, and having a delivery port for sending out one by one;
A magazine holder for holding the test strip magazine in an exchangeable manner;
A test paper biasing means for biasing a plurality of specimen component test papers stored in the test paper magazine toward the delivery port in the order of alignment;
An extrusion mechanism that aligns the position of the delivery port with the position of the test paper holder of the portable sample analyzer and pushes one specimen component test paper at the delivery port to the test paper holding unit;
With
The extrusion mechanism
A guide case that guides the magazine holder so that it can move in the direction of pushing out the specimen component test paper at the delivery port;
An extrusion unit provided in the guide case and disposed at a position where it is pressed against one specimen component test paper at the delivery outlet of the test paper magazine, and one piece at the delivery outlet according to the movement of the magazine holder. An extruding part for extruding the specimen component test paper from the inside of the test paper magazine;
A test paper mounting device characterized by comprising: The test strip loading device according to claim 9, wherein
The magazine holder
A tip guide unit into which the tip of the portable sample analyzer fits, so that when the tip fits in, the sample component test paper pushed out from the delivery port is received by the test paper holder. A test paper loading device comprising a tip guide portion in which a position of a test paper delivery port is arranged. The test strip loading device according to claim 9, wherein
The guide case is
An apparatus for mounting a test paper, characterized in that the magazine holder is guided between two positions: an extruding position where the specimen component test paper is pushed out by the extruding part, and a normal position where it does not interfere with the extruding part. The test strip loading device according to claim 11, wherein
The guide case is
It has a cylindrical shape that holds the outer shape of the magazine holder and guides it so as to be movable in the longitudinal direction, and has an engaging portion that holds the magazine holder in a normal position at the upper part of the cylindrical shape. A test paper loading device having a stop portion for holding a magazine holder in an extrusion position at a lower portion. The test strip loading device according to claim 11, wherein
The extrusion mechanism
A test paper loading device comprising holder urging means for urging the magazine holder from the pushing position toward the normal position. A test paper mounting device for mounting a sample component test paper on a portable sample analyzer having a test paper holding unit for holding a sample component test paper at the tip,
A test paper magazine having a plurality of specimen component test papers arranged and stored, and having a delivery port for sending out one by one;
A magazine holder for holding the test strip magazine in an exchangeable manner;
A test paper biasing means for biasing a plurality of specimen component test papers stored in the test paper magazine toward the delivery port in the order of alignment;
A tip guide provided in the magazine holder, into which the tip of the portable sample analyzer fits, and when the tip fits, the specimen component test paper pushed out from the delivery port is received by the test paper holder. A tip guide portion where the position of the delivery port of the specimen component test paper is disposed,
An extrusion mechanism that aligns the position of the delivery port with the position of the test paper holder of the portable sample analyzer and pushes one specimen component test paper at the delivery port to the test paper holding unit;
With
The extrusion mechanism
A guide case that guides the magazine holder so that the magazine holder can be moved in the direction in which the specimen component test paper at the delivery port is pushed out. The magazine holder interferes with the extrusion position where the specimen component test paper is pushed out by the extrusion section A guide case for guiding between two positions, a normal position without any
An extrusion unit provided in the guide case and disposed at a position pressed against one specimen component test paper at the delivery port of the test paper magazine, and in accordance with the movement of the magazine holder, An extruding section for relatively extruding the specimen component test paper from the test paper magazine;
Holder urging means for urging the magazine holder from the pushing position toward the normal position;
Have
When the tip of the portable sample analyzer is inserted into the tip guide of the magazine holder at the normal position, the portable analyzer is pressed against the tip guide and the magazine holder is pushed to the pushing position to move it. A test paper loading device characterized in that one specimen component test paper is pushed out from a test paper magazine outlet to a test paper holder of a portable analyzer.

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