JPH0395439A - Measuring apparatus - Google Patents

Abstract

PURPOSE:To prevent an extraneous substance from mixing in from an opening for insertion of a test fitting by a construction wherein a member one end of which is supported by a measuring apparatus and which is brought into contact with the contact surface of the test fitting and displaced and a means for actuating the member to be put in a closed state are provided for an insertion part. CONSTITUTION:An insertion part has two modes of a closed state wherein an insertion hole 24 for insertion of a test fitting 1 is closed up and an opened state wherein the test fitting 1 is held at a position of measurement by applying an actuating force thereto. A rotary member 42 of an opening-closing mechanism for insertion of the test fitting 1 is supported rotatably with its shaft body 46 inserted into a pair of bearing parts 22c provided at the edge part of a subordinate cover 22. One end of a torsion spring 48 the inner peripheral surface of which is guided around the outer periphery of the shaft body 46 is put in engagement by a cut part 42a of the member 42, while the other end thereof is in contact with the bottom surface of the cover 22 so that an actuating force in the direction of an arrow of a broken line be given to the member 42. While the member 42 is put in the closed state wherein the insertion hole 24 for the test fitting 1 is closed up, in this way, the bottom part 4f of the test fitting 1 comes into contact with a contact surface 42b of the member 42 and makes the member 42 rotate when the fitting is inserted into the insertion hole 24, and the fitting is held at the position of measurement by the spring 48.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a measuring device for measuring an inserted test device.

[Conventional technology] A multilayer analysis sheet for liquid sample analysis, which facilitates the quantitative determination of specific components in a sample, was published in Japanese Patent Publication No. 61-61347.
However, this multilayer analysis sheet for liquid sample analysis had the disadvantage of a long reaction time due to its structure.

Therefore, in view of this drawback, the applicant of the present application
34198, in particular, proposes a test device with a shortened reaction time, which consists of a reagent layer on one side of a permeable support, in order to analyze components in a specimen. A developing layer for uniformly developing the specimen is fixed by being compressed by the holding member so that the developing layer is on the outside.

According to this applicant's proposal, the specimen reaches the reagent layer,
By shortening the time required for penetration and improving the permeability of gases such as oxygen necessary for the color reaction, the speed of the color reaction is accelerated. The mechanism holds the test device in the measurement position, e.g.
A measuring device was configured to measure the elapsed time of the color reaction.

[Problems to be Solved by the Invention] However, in the test device insertion section provided in the above-mentioned measuring device, the opening is always open, resulting in the problem that foreign objects, dust, etc. can enter the inside of the device through this opening. There was a point.

Therefore, the measuring device of the present invention has been developed in view of the above-mentioned problems, and its purpose is to prevent foreign objects, dirt, etc. from entering the device through the opening into which the test device is inserted. The objective is to provide a measurement device that is not available.

[Means for Solving the Problems] In order to solve the above-mentioned problems and achieve the objectives, the test device insertion opening/closing mechanism of the present invention has the following configuration:
A measuring device comprising an insertion section that has two modes: a closed state in which the opening for insertion of a test device is closed and an open state in which a biasing force is applied to the test device to hold it at a measurement position, the insertion section comprising: The test device includes a member whose one end is supported by the measuring device and is displaced by contact with the contact surface of the test device, and a biasing means for biasing the member into the closed state.

Preferably, the insertion section includes a rotating member whose one end is rotationally supported by the measuring device and whose one end is rotationally displaced by contacting the contact surface of the test device; and biasing means for biasing the closed state.

[Function] With the above configuration, when the test device is not inserted into the opening and is not in use, the biasing force of the biasing means causes the test device to close the opening and close the opening. When inserted into the opening, said member is moved such that a biasing force accumulated in said biasing means acts on the test device and holds the test device in a measuring position for measurement. to work.

Further, when the test device is not inserted into the opening and is not in use, the rotating part is rotated to the closed state to close the opening due to the action of the urging means, while the test device overcomes the urging force of the urging means. When the test device is inserted into the opening, the rotating member is rotated, and the biasing force accumulated in the biasing means acts on the test device to hold the test device in a measurement position for measurement. work like that.

[Example] Hereinafter, an example of the insertion opening/closing mechanism for a test device of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows an external perspective view of a measuring device provided with a test device insertion opening/closing mechanism according to an embodiment, and the measuring device is provided with an insertion hole 24, which is an opening into which a test device I is inserted, as shown by a two-dot chain line. At 50, the measuring device 50
An example is shown in which the device is configured for measuring blood sugar levels.

In this figure, the measuring instrument 50 has an integrated cover 38 formed on its outer peripheral surface, and a display section 5 made of liquid crystal or the like is provided on the left half of the upper surface of the integrated cover 38;
In front of 1 is a power switch 5 that turns the power on/off.
2, and a memory recall button 53 for recalling the date and time of past measurement and the blood glucose level at that date and time in the order of new measurement and displaying them on the display section 51. A total of three operation switches 54 are provided on the right side of the measuring instrument 50, and are used to set and change the date and time of measurement, to store measurement results, and the like.

Next, on the front part of the upper surface of the right half of the measuring instrument 50, there is provided a detachable sub-cover unit 22 that makes it easier to insert the test device 1 by forming a tapered part T starting from the edge of the insertion hole 24. An opening 40 to be attached to is formed up to a portion spanning the front surface.

There are two reasons why the sub cover unit 22 is detachably attached to the cover unit 38 in this way.
The second purpose is to allow the insertion hole 24 to be removed and washed with water if the insertion hole 24 becomes dirty with blood or dirt, and the second reason is to clean the surface of the transparent body provided in the measuring means using a cotton swab or the like. This is to make the light body accessible.

On the other hand, the test device 1 is inserted from above into the insertion hole 24 with the opening 4a in front as shown in the figure.
If the test device 1 is inserted with the front and back sides reversed, measurement cannot be performed, so a means for preventing reverse insertion is provided. A contact portion 42b of a rotating member 42, which will be described later, is peeking into the insertion hole 24, and the insertion hole 24 is closed as shown.

Next, FIG. 2 shows a sectional view taken along the line A-A in FIG. 1, and shows the state before the test device 1 is inserted.

The sub cover unit 22, which is detachably attached to the cover unit 38, must withstand a predetermined external force after being set, and for this purpose, a hooking portion 40a is formed in a part of the opening 40 of the cover unit 38. , a hook part 40 is provided on a part of the sub cover unit 22.
A latching male portion 22a to be latched to a is formed as shown in the figure.

On the other hand, the detection main body 28 is a molded member made of a light blocking material that is integrally provided on a substrate on which electronic components are mounted.
As shown in the figure, the cross-sectional shape forms a U-shaped groove into which the test device 1 can be inserted from above, and this groove has a bottom portion 28c, into which the test device 1 can be inserted. Later, the measurement position is such that it comes into contact with this bottom surface portion 28c.

Next, among the electronic components provided inside the detection main body 28, the light emitting element 30a and the light receiving element 30b are connected to the optical path L in the figure.
It emits and receives light of a predetermined wavelength along the
The light emitted from the light-emitting element 30a is irradiated onto a light-transmitting layer section 6, which will be described later, provided in the opening 2a of the test device 1.
Its basic operating principle is to detect the amount of light reflected by the reagent layer section 8 laid down on the back surface of the reagent layer 8 using the light-receiving element 30b.

A transparent body 32 made of glass or the like is provided at a predetermined position of the detection body 28 facing the opening 2a of the test device 1.

Next, the rotating member 42 of the insertion opening/closing mechanism of the test device 1 is rotatably supported by a pair of bearings 22c provided at the edge of the sub-cover 22. On the side where the shaft body 46 is inserted, the shaft body 46 supports the rotating member 42 so as to be rotatable in the directions of arrows shown by solid lines and broken lines.

The rotary member 42 supported in this manner has a cutout portion 42a formed therein, and one end of a torsion spring 48 whose inner circumference is guided around the outer circumference of the shaft body 48 is hung by the cutout portion 42a. At the same time, the other end of the torsion spring 48 is brought into contact with the bottom surface of the sub-cover 22 as shown in the figure to apply an urging force to the rotating member 42 in the direction of the broken line arrow.

The rotating member 42 provided in this way has a projection 42d.
Since it comes into contact with the bottom surface of the sub-cover 22 and is placed in the position shown in the figure, it is possible to close the insertion hole 24 for inserting the test device 1, which is inserted into the sub-cover 22 from the direction of the arrow D and is shown by the two-dot chain line. state.

On the other hand, on the vertical plane of this rotating member 42 is a base piece 4 for measurement.
4 is installed, and the light emitting element 30 constituting the measuring means
The light emitted from the reference piece 44 is reflected by the light receiving element 30b and detected by the light receiving element 30b. This allows the measurement means to be calibrated.

Next, FIG. 3 is a vertical cross-sectional view of the test device and a main part of the opening of the measuring device, showing the state after the test device 1 is inserted. In both Figures 2 and 3, test device 1
When the test device 1 is inserted from above through the insertion hole 24 in the direction of arrow D, the bottom surface 4f of the test device 1 first comes into contact with the contact surface 42b of the rotating portion 42. After that, when the test device 1 is further moved downward, the rotating member 42 starts rotating in the direction of the arrow shown by the solid line. Further, when the test device 1 is moved downward, the contact surface 42b of the rotating member 42 changes from the state of contact with the bottom surface 4f of the test device 1 to the outer surface portion 4C of the test device 1.
The rotating member 42 is placed in the rotating position shown in FIG. 3.

12 In the rotational position shown in FIG. 3, a rotational urging force in the direction of the solid arrow is generated by the torsion spring 48 on the rotational member 42, and as a result, {i force in the direction indicated by the dashed arrow is applied to the test tool It acts on the outer surface portion 4C of. This state is maintained and measurement is performed.

The operation of the test device configured as described above, that is, how to use it, is to turn on the power switch 52 in advance, and turn on the display section 5.
1, the test device 1 from which the specimen has been collected is inserted into the insertion hole 24. Next, the microswitch 3 attached to the detection main body 28 in FIG.
6 is turned on when one of the both side surfaces 2C of the test device 1 is brought into contact with the test device 1, and the light emitting element 30a and the light receiving element 30b immediately record the time course of the color reaction in the reagent layer 8 of the specimen.
Measured by Thereafter, the measurement results are displayed on the display section 5l, one measurement is completed, and the measurement values are stored.

In the above description, only the structure of the rotational support has been described, but it may be formed of a parallel link mechanism or an elastic body that deforms when the test device is inserted.

In addition, in the above explanation, only the case of blood sugar level measurement was described, but in addition, uric acid, GTo. GPT,
The measurement device of the present invention can be applied to an analysis device for cholesterol and the like.

Furthermore, in addition to blood, the specimen can be applied to body fluids such as urine and saliva.

[Effects of the Invention] As described above, according to the present invention, it is possible to provide a measuring device in which foreign matter, dust, etc. do not enter the inside of the device through the opening into which the test tool is inserted.

[Brief explanation of drawings]

Figure 1 is an external perspective view of the measuring device of the example, Figures 2 and 3 are
The figure is a sectional view taken along the line A-A in FIG. In the figure, 1... test device, 2... main body, 2a... opening, 4C... outer surface part, 4f... bottom surface, 6... light-transmitting layer part, 8... reagent Layer part, 10...Liquid development layer part, 12
...Liquid absorption layer part, 22...Sub-cover integrated, 22a...
Latching part, 22c... Bearing part, 24... Insertion hole, 28
...Detection body, 28c...Bottom part, 30a...Light emitting element, 30b...Light receiving element, 32...Transparent body, 3
8...Cover integrated, 40...Opening portion, 40a...Latching portion, 42...Rotating member, 42b...Abutment surface, 46
... shaft 15 1 6 body, 48 ... torsion spring, 50 ... measuring device,
51...Display section, 52...Power switch, 54...
・It is an operation switch. Patent applicant

Claims (2)

[Claims] (1) A measuring device including an insertion section that has two modes: a closed state in which the opening for inserting a test device is closed and an open state in which a biasing force is applied to the test device to hold it at the measurement position, The part includes a member whose one end is supported by the measuring device and is displaced by contacting the contact surface of the test device, and a biasing means for biasing the member to the closed state. Characteristic measuring device. (2) The insertion section includes a rotating member whose one end is rotationally supported by the measuring device and is rotationally displaced by contacting the contact surface of the test device, and the rotating member is placed in the closed state. Claim 1 characterized in that it comprises a biasing means for biasing the
Measuring device as described in Section.