Mini-type portable urine test strip analysis meter and urine dry chemical test strip

Abstract

The invention provides a mini-type portable urine test strip analysis meter and a urine dry chemical test strip, and solves the problems of inconvenience and high cost during a using process of an existing urine dry chemical test strip in ordinary families and communities and high cost during production of correlated instruments. Compared with an existing urine test strip analysis meter and more than ten items of urine dry chemical test strips, the urine test strip analysis meter is simplified without any movement mechanism by a single-item urine dry chemical test strip, so that the type structure of the mini-type portable urine test strip analysis meter is changed to be very small, and the operation becomes very simple.

Description

technical field [0001] The invention relates to a medical device and a test paper strip matched with the medical device, in particular to a miniature portable urine test paper analyzer and a urine dry chemical test paper strip. Background technique [0002] Urine test strip analyzer and urine dry chemical test strip is a medical diagnostic method for in vitro detection, commonly used in hospitals and various medical institutions, urine dry chemical test strip consists of a long plastic substrate It is composed of a plurality of cubes soaked in different chemical agents arranged in a straight line at intervals glued to the substrate. There are 11 pieces of common urine dry chemical test strips, corresponding to the detection of glucose (GLU) in urine, Ketone body (KET), bilirubin (BIL), urobilinogen (URO), specific gravity (SG), occult blood (BLD), pH (pH), protein (PRO), nitrite (NIT), leukocyte (LEC ) and vitamin C (VC), due to the structure of more than a dozen linearly a...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to design a household miniature portable urine test strip analyzer and supporting urine dry chemical test strips to solve the problem of using the existing urine dry chemical test strips in ordinary families and communities. Inconvenience and high cost and the high cost of related instrument production, the present invention proposes a kind of miniature portable urine test strip analyzer and urine dry chemical test strip, and existing urine test strip analyzer Compared with more than ten urine dry chemical test strips, urine dry chemical test strips can be simplified to less than five items, especially the medicine block is simplified into a single urine dry chemical test strip with only one item. Urine dry chemical test strips are not only suitable for the immersion operation of non-medical professionals in the family and the community, but also the measured items can be selected arbitrarily, and the cost of each measurement is very low. Single urine dry chemical test strips Simplify the urine test strip analyzer to the point that no moving mechanism is required, so that the body structure and operation of the miniature portable urine test strip analyzer of the present invention are as small and simple as a common household miniature portable blood glucose meter; the present invention proposes The urine dry chemical test strip is composed of three parts: the substrate, the drug block and the color distinguishing positioning line. The substrate is made of plastic, the shape is a cuboid, the length is 10-80mm, the width is 2-10mm, and the thickness is 0.05- 2mm, along the length direction at a distance from one end of the substrate 0-40mm, bond a papery polygonal or circular drug block soaked in chemical agents, the embodiment of the present invention selects only one single item of urine dry chemical test paper The shape of the drug block is a regular quadrilateral, and a color distinguishing positioning line with a width of 0.5-10mm is printed at a distance of 2-40mm from the other end of the substrate. According to the different chemical agents immersed in a single drug block, urine dry chemical test paper The single drug block on the strip only reacts with one component in the tested urine. The components in the urine that can be detected by the single drug block on the urine dry chemical test strip are glucose (GLU), ketone body ( KET), bilirubin (BIL), urobilinogen (URO), specific gravity (SG), occult blood (BLD), pH (pH), protein (PRO), nitrite (NIT), leukocytes (LEC) and vitamins C (VC), etc., the color distinguishing positioning line is a straight line printed on the substrate perpendicular to the length direction of the urine dry chemical test strip. The first function of the color distinguishing positioning line is to use black, red, orange, yellow, green , blue, cyan, purple and other colors represent which components in urine can be detected by urine dry chemical test strips, for example, blue can be printed on the substrate of urine dry chemical test strips for glucose (GLU) Black straight line, black straight line printed on the substrate of urine dry chemical test strip for ketone test (KET), red straight line printed on the substrate of urine dry chemical test strip for occult blood (BLD), can be used in the production process It is clearly set that the urine dry chemical test strip printed with a certain color is used to detect which component in the urine, and at the same time, it can be printed on the blank side of the urine dry chemical test strip on the side where the drug block is stuck. The text on the test item, such as glucose (GLU) or sugar (GLU) printed on the blank space of the substrate of the urine dry chemical test strip for glucose (GLU), urine dry chemical test for occult blood (BLD) Print occult blood (BLD) or printed blood (BLD) in the blank space of the substrate of the paper strip, and print ketone body (KET) or simple printed ketone (KET) in the blank space of the substrate of the urine dry chemical test strip ), the substrate blank of the urine dry chemical test strip for protein (PRO) is printed protein (PRO) or simply printed protein (PRO), and the base of the urine dry chemical test strip for bilirubin (BIL) Bilirubin (BIL) or simply printed BIL (BIL) is printed on the blank part of the sheet, and the second function of the color distinguishing positioning line is to determine whether the urine dry chemical test strip is inserted into the miniature portable urine test strip analyzer. Placed in place, when the urine dry chemistry test strip is inserted deepest into the Micro Portable Urine Analyzer to the correct position, the colored distinguishing alignment line is aligned with the border of the Micro Portable Urine Analyzer's housing , the third function of the color distinguishing positioning line is to clarify the area and limit position that the operator can touch with his hands when he pinches the urine dry chemical test strip; a kind of miniature portable urine test strip proposed by the present invention analyzes The instrument is mainly composed of a base, an upper cover, a display window, a button, a test paper tray, a battery cover, a detection seat, a battery box, a negative guide piece, a positive guide piece, a display screen, screws, a circuit board, a micro switch, a detection tube, Composed of light-emitting diodes, detection heads, and CPU chips; the shape of the base is the lower half of an oval hollow shell or the lower half of a rectangular hollow shell, and the shape of the upper cover is the upper half of an oval hollow shell or The upper half of the rectangular cavity shell, the embodiment of the present invention shows an elliptical shell shape, the base and the upper cover are formed by injection molding of plastic materials, and the upper cover and the base are fastened up and down to form the miniature portable urine of the present invention The shell of the test strip analyzer, in order to put the circuit board into the inner cavity of the elliptical shell of the miniature portable urine test strip analyzer, the shape of the circuit board is set to be similar to the oval shape of the cavity shell in the base The shape of the upper cover is provided with a display window made of transparent plastic and one or more buttons made of plastic or conductive plastic, and a rectangular button is fixed on the inner side of the upper cover aligned with the display window. The display screen, or at the position directly above the circuit board aligned with the display window, the display screen is directly welded and fixed on the circuit board. Solder the display screen directly on the circuit board, and weld a micro switch or printed switch wiring on the position directly above the circuit board aligned with each button, facing the cavity shell in the cavity shell of the base In the middle of the inner side of the battery box, there is a battery box integrated with the base, and the two ends of the battery box are respectively provided with card slots. The conductive metal sheet with a spring is set as the negative electrode guide piece of the battery, and the The conductive metal sheet is set as the positive lead of the battery, and the negative lead and the positive lead are welded vertically on the circuit board. When the circuit board is fixed on the base, the negative lead and the positive lead are just inserted into the card of the battery box. In the groove, the battery cover is buckled on the battery box from the outside of the base; on the base connected to the battery box, there is a fixed n-shaped detection seat integrated with the base towards the inside of the cavity shell , the fixed detection seat is composed of two sides and a middle groove, and one or more threaded holes for fixing the circuit board are arranged on the two sides and the base of the detection seat, and the two sides of the detection seat The side extends out of the base to expose 1-15mm, and the middle groove of the detection seat also extends out of the base and forms a rectangular through hole on the base. The length of the middle groove of the detection seat is 10-80mm, the width is 5-35mm, and the height The width of the guide groove is 1-5mm, and the height of the guide groove is 1-5mm; the shape of the test paper pallet is Rectangular, the material of the test paper pallet is plastic, the length, width and height of the test paper pallet are equal to the length, width and height of the middle slot, and a test paper stop and a test paper positioning slot are arranged in the middle position directly above the test paper pallet. The length of the test paper positioning groove is equal to the length from the top of the substrate on the side of the urine dry chemical test strip sticking the drug block to the color distinguishing positioning line, and the width of the test paper positioning groove is wider than the substrate of the urine dry chemical test strip The width of the test paper positioning groove is 0.05-1.5mm larger, and the depth of the test paper positioning groove is 0.1-5mm larger than the thickness of the urine dry chemical test strip. For the calibration of the liquid test strip analyzer, two guide plates with the same cross-section as the guide groove are integrally formed on both sides of the test paper support plate. Positioned in the test seat, you can also set the guide plate on the two sides of the test seat, set the guide grooves on both sides of the test paper holder, insert the test paper holder into the middle groove of the test holder, and insert the test paper holder When the correct position is reached in the Micro Portable Urine Test Strip Analyzer, the edge of the test strip holder is aligned with the border of the Micro Portable Urine Test Strip Analyzer housing, and the urine dry chemical test strip is on the drug block facing up Insert the urine dry chemical test strip into the test paper positioning groove of the test paper holder, push the substrate end of the adhesive block onto the test paper stop, and the color distinguishing positioning line on the urine dry chemical test strip and The boundary of the miniature portable urine test strip analyzer is aligned, and a small handle is set at the lower end of the test paper holder, and the finger is buckled on the small handle of the test paper holder, which can be easily analyzed on the miniature portable urine test strip analyzer. Insert or remove the test paper support plate on the instrument; weld a detection tube on the position where the circuit board is facing the center point of each medicine block of the urine dry chemical test strip. The number of detection tubes is the same as that of the urine dry chemical test paper. The quantity of the drug block of strip is consistent, and the embodiment of the present invention selects single-item urine dry chemical test paper strip for use, so only welds a detection tube on the circuit board, and the detection head that a cone tip faces down is set on the detection tube, when there is only one When detecting tubes, the detection head is formed by an inverted circular platform and a coaxial inverted cone or an inverted isosceles triangular prism. When there are more than two detection tubes, the detection head is formed by an inverted isosceles triangular It is formed by a waist triangular prism. On the axis of the round platform, there is a cylindrical hole that can fit the lower detection tube, or on the center point or symmetrical center line of the isosceles triangular prism, there are one or more than two holes that can fit the lower detection tube. Cylindrical holes, the center line of each cylindrical hole is provided with a small cylindrical hole with a diameter of 0.1-2.5mm connected to the light guide, and the cone tip of the detection head is facing down and the bottom is facing up. The centerline of the cylindrical hole along the long line just falls on the center point of the medicine block of the urine dry chemical test strip, and there are one or more sets of upper semi-cylindrical grooves symmetrically distributed on the side of the test head, each set of upper half The long line of the center line of the cylindrical groove intersects the long line of the center line of the small cylindrical hole, and the intersection point falls on the center point of the corresponding drug block of the urine dry chemical test strip, on the two sides of the detection seat on the base Generate an inner conical surface to fit with the side of the inverted circular platform on the detection head or generate a V-shaped surface on the two sides of the detection seat on the base to fit with the side of the isosceles triangular prism, the inner conical surface or V There are one or more groups of lower semi-cylindrical grooves evenly distributed on the shape surface, and the long line of the center line of each group of lower half-cylindrical grooves intersects with the long line of the center line of the small cylindrical hole, and the intersection point falls on the urine dry chemical test. The center point of the medicine block corresponding to the paper strip, each upper semi-cylindrical groove and the docked lower semi-cylindrical groove forms a full cylindrical hole, and a light-emitting diode is buckled in the hole, so that the midpoint of the light spot of the buckled light-emitting diode It just falls on the center of the drug block of the urine dry chemical test strip. The pins of the light-emitting diodes are directly welded on the circuit board, and a small hole is arranged on the position of each threaded hole on the circuit board. The circuit board is tightly fixed on the base through the small hole on the circuit board, and the circuit board also tightly fixes the detection head and the light-emitting diode on the detection seat of the base. The n-shaped detection seat, test paper support plate, The detection tube, detection head and light-emitting diode together constitute the fixed detection mechanism of the miniature portable urine test strip analyzer. With the development of mass production technology and cost requirements, the detection tube, detection head and light-emitting diode can be integrated to produce On a detection module, the shape of the detection module can be a cuboid, cylinder, circular truncated or conical, and the detection module is directly welded on the circuit board. The n-shaped detection seat, the test paper holder and the detection module together form a miniature portable urine. The fixed detection mechanism of the liquid test strip analyzer; the circuit board is welded with a display screen connection cable socket or directly welded with the display screen, and the circuit board is soldered with a CPU chip, a micro switch, a negative guide piece, and a positive guide piece. Detection tube, light emitting diode, in order to make the miniature portable urine test strip analyzer use on the digital network, you can solder the bluetooth module, WIFI module and micro USB socket on the circuit board, so that the detected data can be easily uploaded On the Internet, components such as display screens, CPU chips, micro switches, negative guides, positive guides, detection tubes, light-emitting diodes, Bluetooth modules, WIFI modules and micro-USB sockets welded on circuit boards are all standard parts. It is easy to buy in the market

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