Detector and detection equipment

Abstract

The invention relates to a detector and a detection device.The detector comprises a shell and a detection assembly in the shell, the shell comprises an insertion opening used for inserting a detection card into the detector for detection, the detection assembly comprises a circular rotating disc, the rotating disc is provided with a plurality of test channels, and one detection card can be inserted into each test channel; the automatic card pushing mechanism is arranged at a proper position on the periphery of the turntable, after the detector starts detection, the turntable drives the detection card to rotate, and when the detection card reaches the position where the automatic card pushing mechanism is located, the automatic card pushing mechanism automatically pushes the detection card which is not inserted into the position required by detection into the position required by detection in the test channel. And the detection card is accurately positioned in the test channel. The detector can automatically push the detection card which is not inserted into the position required by detection into the position required by detection, so that the detection card is accurately positioned in the detector, detection is carried out under the condition that the detection card is in place, and the detection result is accurate and reliable.

Description

Technical Field

[0001] The present invention belongs to the technical field of in vitro diagnostic equipment, and in particular relates to a detector and a detection device. Background Art

[0002] In vitro diagnosis is an important part of the field of medical testing. It uses in vitro samples to analyze various physiological indicators of subjects, and the test results can be obtained through the naked eye or a detector. During the test, the test card can be placed on the stage of the detector and transported into the detector. The test light source is irradiated to the result display area of ​​the test card, and the photodiode receives the reflected light signal of the test card and transmits the data to the data processing system to complete the test result analysis. The detector outputs the test result.

[0003] Fluorescence immunoassay technology is a method that combines the specificity of immunological reactions with the sensitivity of fluorescence technology. Fluorescence immunoassay analyzers are based on the principle of immunochromatography. A light source of a specific wavelength is irradiated on the test area of ​​the test card. After being excited, the fluorescent markers in the test area emit light of a different wavelength from the light of the light source and are captured by the photoelectric sensing device to form a current signal. The magnitude of the current is related to the concentration of the analyte in the sample, thereby achieving qualitative or quantitative analysis of the analyte in the sample.

[0004] Fluorescence immunoassay analyzers can be used for both common fluorescence detection and time-resolved fluorescence determination. Existing fluorescence immunoassay analyzers are of two types: single-channel and multi-channel. Single-channel fluorescence immunoassay analyzers can only detect one test plate at a time, and the detection efficiency is low. Multi-channel fluorescence immunoassay analyzers improve detection efficiency. However, the existing multi-channel fluorescent immunoassay analyzer is often prone to the following situations that affect detection: 1. The test card is not fully inserted into place. When the test card is transported to the detection area of ​​the analyzer, the test area on the test card deviates from the detection area of ​​the analyzer, resulting in the analyzer being unable to correctly detect the test area of ​​the test card, thereby resulting in inaccurate test results; 2. When the analyzer door is opened to put the test card on the turntable, the operator's finger may touch the turntable and cause the turntable to rotate incorrectly, affecting the entire test process; 3. In the process of closing the analyzer door, if the operator's finger fails to be pulled out in time, it may be clamped by the door, causing the operator to be injured; 4. In the process of the analyzer withdrawing the test card after the test is completed, due to unexpected power failures and other reasons, it is easy to cause the test card to be stuck in the test channel and unable to be withdrawn smoothly, thereby causing the analyzer to fail; 5. An analyzer can only detect the same project, and the analyzer is not universal. Therefore, when it is necessary to detect multiple different projects, it is necessary to purchase multiple corresponding analyzers respectively, which greatly increases the cost. The present invention is generated under such a background. Summary of the invention

[0005] The object of the present invention is to provide a detector which can automatically push a detection card which has not been inserted into the position required for detection into the position required for detection, thereby accurately positioning the detection card in the detector to facilitate subsequent detection.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: the detector of the present invention includes a shell and a detection component in the shell, the shell includes an insertion port for inserting a detection card into the detector for detection, wherein the detection component includes a transmission module, the transmission module includes a circular turntable, and the turntable is provided with a plurality of test channels, each test channel can be inserted with a detection card, and an automatic card pushing mechanism is arranged at a suitable position on the outer periphery of the turntable. After starting the detector, the turntable drives the detection card to rotate, and when the detection card reaches the position of the automatic card pushing mechanism, the automatic card pushing mechanism automatically pushes the detection card that has not been inserted into the position required for detection into the position required for detection in the test channel, thereby accurately positioning the detection card in the test channel.

[0007] As a further improvement of the present invention, the automatic card pushing mechanism includes an inclined surface facing the outer periphery of the turntable. When the turntable drives the test card to pass through the inclined surface, the inclined surface squeezes the tail of the test card, and the inclined surface pushes the test card to move toward the center of the turntable in the test channel until the test card is inserted into the position required for the test.

[0008] As a further improvement of the present invention, the automatic card pushing mechanism includes a spring piece, which includes an inclined surface facing the outer periphery of the turntable. When the turntable rotates and drives the test card to pass through the inclined surface, the inclined surface squeezes the tail of the test card, thereby pushing the test card to move toward the center of the turntable in the test channel until the test card is inserted into the position required for the test.

[0009] As a further improvement of the present invention, a protrusion is provided at the end of each test channel of the turntable. When the head of the test card is blocked by the protrusion during the insertion of the test card into the test channel, it indicates that the test card has been inserted into the position required for the test.

[0010] On the other hand, the present invention further provides a detection device, comprising the aforementioned detector and detection card of the present invention.

[0011] In addition, the present invention also provides a detection system, which has multiple detection channels, can accommodate multiple detection cards at the same time, and is suitable for different types of detection cards.

[0012] A detection system of the present invention comprises the aforementioned detector and detection card of the present invention, wherein the detection component comprises a transmission module, a test module and an exit module, the transmission module comprises a circular turntable, at least three test channels are arranged on the turntable, the test channels are evenly distributed on the turntable in a star shape, one end of the test channel is close to the center of the turntable and the other end extends to the periphery of the turntable, a detection card can be inserted into each test channel, at least two marks are arranged on the detection card, the detection component comprises identification recognition components equal to the number of marks on the detection card, in the process of the turntable transmitting the detection card, these identification recognition components successively recognize the marks on the detection card to form a signal combination and transmit it to the control system of the detector, the signal combination at least includes the minimum incubation time of the detection card, after the detection card starts to be incubated in the detector, the control system of the detector starts to count down for each detection card according to the minimum incubation time of each detection card and transmits each detection card to the test module for detection in the order of the end of the countdown, the test module recognizes the detection signal on the detection card and outputs the detection result; the exit module is used to withdraw the detection card from the test channel after the detection is completed.

[0013] As a further improvement of the present invention, at least two identifications on the test card are QR codes, bar codes, or a combination of QR codes and bar codes, and the identification recognition components on the detection component are staggered in space. During the process of the turntable transmitting the test card, the first identification component on the detection component recognizes the first identification on the test card, and then the second identification component on the detection component recognizes the second identification on the test card, and so on, until all the identifications on the test card are recognized.

[0014] As a further improvement of the present invention, at least two identifications on the test card also include information corresponding to the detected biological parameters, and the detector can be used for testing test cards for detecting the same biological parameter items as well as for testing test cards for detecting different biological parameter items.

[0015] As a further improvement of the present invention, the detector sets the minimum incubation time according to the detection biological parameters included in the identification on each detection card.

[0016] As a further improvement of the present invention, the detector also includes a door that can rotate relative to the turntable, and the door is provided with windows whose number is equal to the number of identifications on the test card and whose positions correspond to the positions of identification recognition components on the detector. When the detector recognizes the identifications on the test card, these windows enable the identifications on the test card to be recognized by the corresponding identification recognition components on the detector, while reducing interference from other identification components on the detector.

[0017] On the other hand, in the present invention, in a further technical solution, the detector includes a mechanism with a finger-prevention function. Specifically, the detection component includes a door that can move relative to a turntable, a first motor, and a second motor. The turntable is driven to rotate by the first motor and then drives a plurality of test channels to rotate. When the door is open, the detection card can be inserted into the test channel. When the door is closed, the detection card is prevented from being inserted into the test channel. The detection component also includes an elastic element, which is used to drive the door to close. When the second motor rotates forward, it is used to drive the door to open, and when it rotates reversely, it is used to offset part of the rebound force of the elastic element during the closing process of the door.

[0018] As a further improvement of the present invention, the detection component also includes a mechanical arm, and the door includes a stop block; when the second motor rotates forward, it drives the mechanical arm to move forward, and the mechanical arm pushes the stop block unidirectionally in a preset direction to move forward to open the door; when the second motor rotates reversely, it drives the mechanical arm to move reversely, and the mechanical arm blocks the stop block and offsets part of the rebound force of the elastic element to close the door.

[0019] As a further improvement of the present invention, the door includes a horizontal part and a vertical part extending downward from the edge of the horizontal part, the vertical part is an arc-shaped part consistent with the curvature of the outer periphery of the turntable, the vertical part is close to the outer periphery of the turntable, the stop block is located on the upper surface of the horizontal part of the door, and the mechanical arm is located above the horizontal part of the door. Driven by the second motor, the end of the mechanical arm can reciprocate.

[0020] As another improvement of the present invention, the detection component includes a mechanical arm, the door includes a groove, and the end of the mechanical arm extends into the groove; when the second motor rotates forward, it drives the mechanical arm to move forward, and the end of the mechanical arm pushes a proximal side wall of the groove to move, thereby opening the door; when the second motor rotates reversely, it drives the mechanical arm to move reversely, and the end of the mechanical arm blocks the proximal side wall of the groove and offsets part of the rebound force of the elastic element, thereby closing the door.

[0021] As a further improvement of the present invention, one end of the elastic element is fixed and the other end is connected to the door. When the second motor rotates forward in a preset direction to drive the mechanical arm to open the door, the elastic deformation of the elastic element gradually increases to accumulate energy. When the second motor reverses to drive the mechanical arm, the elastic element gradually rebounds to drive the door to close. The mechanical arm abuts against the stop block or the proximal side wall of the groove and offsets part of the rebound force of the elastic element.

[0022] As a further improvement of the present invention, the detector also includes two fixed optocoupler switches, which respectively correspond to the positions of the stop blocks on the door when the door is fully closed and fully opened. When the stop blocks pass through the two optocoupler switches respectively, the optocoupler switches send a signal to the control system of the detector that the door is fully closed or fully opened.

[0023] On the other hand, in the present invention, in a further technical solution, the detector further includes a locking mechanism, when the door is in an open state, the first motor stops driving the turntable to rotate, and the locking mechanism automatically locks the turntable to prevent the turntable from rotating; when the door is in a closed state, the locking mechanism automatically releases the turntable, and the first motor drives the turntable to rotate. The turntable is locked during the process of opening the door to prevent the turntable from being accidentally pushed, resulting in inaccurate positioning of the turntable and affecting the normal operation of the detector.

[0024] As a further improvement of the present invention, the locking mechanism includes a limiting hole with the same number as the test channel, a boss, a top block limited to move up and down only in the vertical direction, and a latch installed on the top block, the limiting hole is located in the central area of ​​the turntable and each limiting hole corresponds to a test channel, the boss is located on the upper surface of the door, the boss and the top block respectively include a mutually fitting sloped surface, when the door is in the process of opening, the sloped surface on the boss gradually releases the sloped surface on the top block, causing the top block to move vertically downward, thereby driving the latch to move vertically downward, the lower end of the latch enters the limiting hole, and the latch automatically locks the turntable, thereby preventing the turntable from rotating; when the door is in the process of closing, the sloped surface on the boss gradually lifts the sloped surface on the top block, causing the top block to move vertically upward and driving the latch to move vertically upward, so that the lower end of the latch leaves the limiting hole, and the latch automatically releases the turntable, thereby not preventing the turntable from rotating.

[0025] As a further improvement of the present invention, a compression spring is sleeved on the middle part of the latch. When the door is opened, the door drives the boss to rotate together, the sloped surface on the boss is gradually separated from the sloped surface on the top block, the top block gradually loses the support of the boss, and the compression spring stretches to push the latch and the top block to slide vertically downward, so that the bottom end of the latch is inserted into the limiting hole on the turntable, locking the turntable and thus limiting the rotation of the turntable; conversely, when the door is closed, the door drives the boss to rotate in the opposite direction, the sloped surface on the boss is matched with the sloped surface on the top block, pushing the top block to move vertically upward, lifting the top block, pushing the latch in the top block to lift upward, so that the bottom of the latch is separated from the limiting hole on the turntable, thereby unlocking the turntable, so that the rotation of the turntable is no longer restricted, and at the same time the compression spring sleeved on the middle part of the latch is further compressed.

[0026] On the other hand, in the present invention, in a further technical solution, the detector includes not only the first motor and the second motor, but also the third motor, the first motor is used to drive the turntable to rotate and then drive the several test channels to rotate, the second motor is used to open the door so as to facilitate the insertion of the test card into the test channel, the third motor is used to withdraw the test card from the turntable after the test is completed, at least one pair of process grooves are provided on the two opposite side walls of the test channel, and the detector also includes a slider, when a certain test card is completed, the turntable rotates and transports the test card to an initial position close to the slider, the third motor starts and drives the slider from its initial position to push the test card to withdraw from the test channel after the test is completed, and then the slider returns to the initial position, the length of the two sides of the slider is greater than the length of the process grooves on the two opposite side walls of the test channel, so that the slider will not be stuck in the process groove when sliding in the test channel. It can effectively avoid the technical problem that the test card is stuck in the test channel due to accidental power failure and other reasons, thereby causing the detector to fail.

[0027] As a further improvement of the present invention, a pair of process grooves are alternately staggeredly arranged on two opposite side walls of the test channel, so that the two side edges of the sliding block do not intersect with the pair of process grooves at the same time.

[0028] The present invention has the following beneficial effects: 1. The detector and the detection device of the present invention have an automatic card pushing mechanism, which can automatically push the detection card that has not been inserted to the bottom to the bottom, so that it reaches the area defined by the detector, so the success rate of the detection result is high; 2. The detector and the detection device of the present invention realize multi-channel testing and improve the test speed; 3. The detector and the detection device have eight test channels, which can realize eight identical or different samples to be incubated at the same time and tested in sequence. One detector realizes all the functions of eight single-channel detectors, which greatly improves the detection efficiency, reduces the cost of purchasing the detector, reduces the space occupied by the instrument, saves space and manpower, and has the advantage of low detection cost; 4. The present invention Any of the eight test channels of the detector and the detection equipment of the present invention can be used as an emergency test, and is suitable for use in the laboratory of the emergency department of the hospital, with a wide range of applications; 5. The detector and the detection equipment of the present invention can automatically and intelligently identify the identification information on the test card (this information includes information corresponding to the test sample or the test item), and then set the corresponding incubation time for each inserted test card according to this information, and automatically count down. When a test card reaches the incubation time, the detector automatically transfers the test card to the detection block area for testing. Therefore, the detector is suitable for detecting the same or different samples or test items, which greatly improves the scope of application of the detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1It is a three-dimensional appearance schematic diagram of the detector of the present invention.

[0030] Figure 2 It is a three-dimensional schematic diagram of the detector of the present invention with the outer shell removed.

[0031] Figure 3 yes Figure 2 In the enlarged partial diagram, the door is in the fully closed state.

[0032] Figure 4 It is a three-dimensional schematic diagram of the detector of the present invention after removing the upper shell and some components.

[0033] Figure 5 yes Figure 4 A partial enlarged schematic diagram is shown in the figure.

[0034] Figure 6 This is a top view of the detector with the outer shell removed. The test card is not inserted into the correct position and the door is open.

[0035] Figure 7 This is another plan view of the detector after the outer shell is removed, in which the door is blocked by the detection card and cannot be completely closed.

[0036] Figure 8 This is another plan view of the detector after the outer shell is removed, in which the door is not blocked by the detection card but is not completely closed.

[0037] Fig. 9 This is another plan view of the detector after the outer shell is removed, the door is in a completely closed state, and the test card moves to a state where it just touches the automatic card pushing mechanism.

[0038] Fig.10 yes Fig. 9 A partial enlarged schematic diagram is shown in the figure.

[0039] Fig.11 This is another plan view of the detector after the outer shell is removed, and the test card is in a state of being pushed to the correct position by the automatic card pushing mechanism.

[0040] Fig.12 yes Fig.11 A partial enlarged schematic diagram is shown in the figure.

[0041] Fig.13 This is another plan view of the detector after the outer shell is removed, showing the state of the test card after it moves through the automatic card pushing mechanism.

[0042] Fig.14 It is a three-dimensional appearance diagram of the test card.

[0043] Fig.15 It is a three-dimensional schematic diagram of the detector of the present invention after the outer shell is removed, and the door is in a fully open state.

[0044] Fig.16 yes Fig.15 A partial enlarged schematic diagram is shown in the figure.

[0045] Fig.17 The present invention Fig.15 A schematic diagram of another implementation of the illustrated embodiment.

[0046] Fig.18 It is a cross-sectional view of the detector of the present invention after removing the outer shell and some components, and the door is in a fully open state.

[0047] Fig.19 yes Fig.18 A partial enlarged schematic diagram is shown in the figure.

[0048] Fig. 20 It is a three-dimensional schematic diagram of the detector of the present invention after removing the outer shell and some components, and the door is in a completely closed state.

[0049] Fig.21 yes Fig. 20 A partial enlarged schematic diagram is shown in the figure.

[0050] Fig. 22 It is a cross-sectional view of the detector of the present invention after removing the outer shell and some components, and the door is in a completely closed state.

[0051] Fig.23 yes Fig. 22 A partial enlarged schematic diagram is shown in the figure.

[0052] Fig.24 It is a three-dimensional schematic diagram of the detector of the present invention after the shell is removed, and the card ejection mechanism is in the card ejection state.

[0053] Fig.25 yes Fig.24 A partial enlarged schematic diagram is shown in the figure.

[0054] Fig.26 yes Fig.24 A perspective schematic diagram of another embodiment of the embodiment.

[0055] Fig. 27 yes Fig.26 A partial enlarged schematic diagram is shown in the figure.

[0056] Fig.28 yes Fig.24 or Fig.26 A schematic diagram of the detector of the illustrated embodiment returning to an initial state after completing card removal.

[0057] Fig.29 yes Fig.28 A partial enlarged schematic diagram is shown in the figure.

[0058] Fig.30 yes Fig. 27 A schematic diagram of another embodiment of the embodiment.

[0059] Fig.31 It is a three-dimensional schematic diagram from another viewing angle of the present invention after removing the outer shell.

[0060] Fig.32 yes Fig.31 A partial enlarged schematic diagram is shown in the figure. DETAILED DESCRIPTION

[0061] The following further describes the structures or technical terms used in the present invention. In the following detailed description, the reference text attached to the legend is a part of this part, which is described in the way of illustrating the specific specific scheme that the present invention may be implemented. We do not exclude that the present invention can also implement other specific schemes and change the structure of the present invention without violating the scope of use of the present invention.

[0062] like Figure 1-13 The detector 1 shown in the figure comprises a base 10, an upper shell 20 matched with the base, and a detection component 30 (refer to Figure 2 ), wherein the base and the upper shell are combined into a shell 40, and the detection component is fixed inside the shell. The upper shell 20 includes an insertion port 210, a display screen 220 and a printing port 230. A collection box 110 is provided on one side of the base 10 for collecting the detection card 120 ( Figure 4 In a preferred solution, the collection box 110 is assembled to the base 10 in the form of a drawer and can be pulled out from the base.

[0063] Figure 2-Figure 13 The structure and working mode of the detection assembly 30 are shown. The detection assembly 30 includes a transmission module 310, a test module 350 and an exit module 380. The transmission module is used to transmit the detection card 120 from the insertion port 210 position to the detection position, and then transmit the detection card to the card exit position after the detection is completed. The test module 350 adopts a fluorescent immunological method to identify the color signal displayed by the detection card 120 after the detection is fully completed, and then outputs the detection result to the display screen. The exit module 380 is used to exit the detection card after the detection is completed to the collection box 110, and then treat it as biological waste for environmental protection.

[0064] like Figure 4 and Figure 5 As shown, the conveying module 310 includes a circular turntable 311, which is driven by a first motor 312 (refer to Figure 2) is driven to rotate around its central axis (not shown). The turntable is provided with a plurality of test channels 313, which are used to place and fix the test card 120. The number of test channels is preferably two, three, four, five, six, eight, ten, etc. (the present invention takes eight as an example for detailed description), and is preferably evenly distributed on the turntable in a star shape, so that the angles between two adjacent test channels are equal, and a regular polygon-like area is formed at the center of the turntable. The polygonal area is provided with a protrusion 329 at the end of each test channel (see Figure 5 , its function will be described later). Figure 2 As shown, a door 314 is provided above the turntable 311, and the door 314 can reciprocate in a clockwise or counterclockwise direction around the central axis of the turntable, thereby realizing opening or closing the door. When the door is open, there is just an empty test channel (referred to as the "first test channel") located at the insertion port 210, and the first test card 120 can be inserted at this time, and then the door is closed, the turntable rotates, and the first test card is removed from the insertion port and incubated ("incubation" means that the biological sample on the test card and the reagent on the test card are allowed to fully react within a suitable temperature range until a color signal or other signal recognizable by the detector appears in the detection area of ​​the test card), and then the second test channel is transferred to the insertion port, the door is opened, and after the second test card is inserted, the door is closed again, the turntable rotates, and the second test card is removed from the insertion port and incubated, and then the third test channel is transferred to the insertion port, the door is opened, and after the third test card is inserted, the door is closed, and the operation is repeated until all test channels are placed and fixed with test cards. As shown Fig.14 As shown, the test card 120 has a symbol (for example, one or more two-dimensional codes or bar codes or a combination of two-dimensional codes and bar codes, etc., and the present invention preferably has three two-dimensional code identifiers 121, 122 and 123) that identifies the information of the test card (such as test items, minimum incubation time, manufacturer, shelf life, production batch, etc.). The test module 350 reads these symbol information and transmits these symbol information to the control system of the detector. The control system determines when to transfer the corresponding test card to the corresponding detection position according to the minimum incubation time required for each test card. The test module starts and detects the color signal or other signal on the test card. The structure of the test card other than the identification symbol and the working method of the test module belong to the prior art and need not be described here.

[0065] The detector 1 of the present invention is suitable for detection cards of the same detection type (that is, several detection cards placed on the test channel 313 in sequence are all detection cards for detecting the same item, and the minimum incubation time required for them in the detector is the same. Therefore, the detection cards are detected in sequence by the test module in the order of the time of placement of the detection cards, which can shorten the average incubation waiting time of each detection card, thereby improving the detection efficiency by several times), and is also suitable for detection cards of different detection types (for example, some are detection cards for detecting item A, and others are detection cards for detecting items B, C, D, etc., and even the detection items of the detection cards placed in each test channel are different, but the external dimensions, specifications and structures of the detection cards should be consistent). At this time, the minimum incubation time required for detection cards of different detection items may be different. At this time, the control system will determine the minimum incubation time required based on the symbol information (such as a QR code) on each detection card identified by the detection component 30, and then send these detection cards to the detection position in sequence according to the order in which the minimum incubation time is reached for detection by the detection module. Therefore, the detector of the present invention has better versatility, that is, one detector can complete the detection of multiple different detection items, thereby achieving the effect of "one machine with multiple functions", which greatly reduces the cost of purchasing multiple detectors of different types, and greatly saves the operating space required for placing multiple detectors in the laboratory, avoiding waste. The reason why the present invention can achieve "one machine with multiple functions" is that: for different detection items, except that the immunochromatographic reagents on the test strips on the detection card are different, the external dimensions and structures of the detection card are the same, and the detection results of the detection card are all expressed by displaying the color (including the depth of the color) or the change of the color in the detection area of ​​the detection card, and the detection instrument recognizes the color (including the depth of the color) in the same way. The structure of the detection card 120 other than the identification symbol and the content of the internal test strip belong to the prior art and need not be repeated here.

[0066] As mentioned above, when the door 314 is opened, the control system of the detector moves a certain test channel 313 to a position facing the insertion port 210, which is suitable for inserting a test card. Figure 2-Figure 5As shown, the test channel 313 is a slide rail structure, and at least one hole 338 is opened at the bottom thereof, and an arch spring piece 339 is installed in each hole, and the top of the arch spring piece protrudes from the bottom surface of the test channel. At least one process groove 337 is opened on the two opposite side walls of the test channel to facilitate the manufacture of the turntable. In addition to the process groove, the top of the test channel is provided with a top 340 extending from the two opposite side walls of the test channel to each other by an appropriate distance. The arch spring piece is any structure with a high middle and low ends, such as an arc shape, an arch bridge shape, a trapezoidal shape, an inverted "V" shape, etc. When the test card 120 is inserted into the test channel 313, the two side walls of the test channel act as slide rails to guide the insertion of the test card, and the arch spring piece in the test channel pushes the test card upward, so that the upper surface of the test card abuts against the top 340 of the test channel, thereby accurately positioning the test card. When the test card continues to be inserted until the front end of the test card abuts against the protrusion 329 at the end of the test channel (such as Figure 4 ), indicating that the test card has been inserted to the bottom.

[0067] If the test card is inserted too shallowly, the end of the test card will stay at a position far from the central axis of the rotating disk 311 (such as Figure 6 As shown), then, when the door is about to close, the outer edge of the door will be blocked by the end of the detection card (as shown Figure 7 As shown), the door cannot be completely closed, and the control system of the detector prevents the turntable 311 from rotating. At this time, the display screen 220 will prompt "Please push the test card to the bottom" or a voice prompt "Please push the test card to the bottom".

[0068] The present invention has an automatic card pushing mechanism that automatically pushes the test card 120 to the bottom (i.e., the position required for testing). If the test card is inserted deep enough but not completely inserted to the bottom, for example, the end of the test card does not extend beyond the inner side of the outer edge of the door 314, the end of the test card will not prevent the door from closing (e.g., Figure 8 As shown), at this time, the control system of the detector will not prevent the turntable from rotating ( Figure 8 The display shows counterclockwise rotation), the turntable drives the detection card to rotate around the center axis of the turntable. Figure 6-Figure 13As shown, the present invention sets an automatic card pushing mechanism 315 at a suitable position on the outer periphery of the turntable, which is used to automatically push the test card that is not fully inserted to the bottom and firmly fix the test card in the test channel 313, so that the test card is accurately positioned on the turntable, which is more conducive to the test module 350 to detect the color displayed in the detection area on the test card (the background color is displayed when the substance to be detected is not detected, and the color is displayed as a color different from the background color when the substance to be detected is detected) or the color change (the color before the start of the detection changes to another color after the detection is completed). Since the position of the test module 350 is fixed, if the test card is not fully inserted to the bottom, the color area displayed in the detection area of ​​the test card may not be aligned with the position required by the test module, thereby causing the test module to be unable to accurately identify the color signal of the detection area of ​​the test card, and then causing the detector to be unable to give a test result or unable to give an accurate test result, resulting in a test failure. This is obviously a problem that needs to be overcome as much as possible.

[0069] like Figure 9-13 As shown, the automatic card pushing mechanism 315 includes a slope 316. When the test card 120 is driven by the turntable until the end (tail) edge of the test card touches the slope 316, the slope applies a force to the end of the test card to push the test card to slide in the test channel toward the center axis of the turntable, thereby automatically inserting the test card to the bottom (the position required for the test), so that the detection area of ​​the test card is aligned with the position required by the test module, so as to facilitate the test module to accurately identify the color or color change of the detection area of ​​the test card. In a preferred embodiment, the automatic card pushing mechanism 315 includes a spring with one end fixed and the other end as a free end. When the end of the test card touches the spring, the spring is squeezed by the end of the test card and elastically deformed. The spring applies a reaction force to the end of the test card, thereby pushing the test card to be inserted to the bottom, so that the detection area of ​​the test card is aligned with the position required by the test module, so as to facilitate the test module to accurately identify the color or color change of the detection area of ​​the test card. Figure 2 and Fig.10 As shown, the automatic card pushing mechanism 315 is fixed to the outer periphery of the turntable 311 by a support frame 317, and the support frame also serves to prevent the door 314 from opening too much.

[0070] After the first test card passes through the automatic card pushing mechanism, it continues to rotate counterclockwise, and then the first test card passes through the first, second, and third test card symbol recognition devices 318, 319, and 320 in sequence (see Figure 2), the three symbols (preferably a QR code) on the first test card are identified in turn, and then the identified information is transmitted to the control system of the detector, and the control system determines the test items and the required incubation time of the first test card accordingly, and then starts the incubation countdown. When the incubation time is over, the first test card is transmitted to the area required by the test module 350 for detection. After the detection is completed, the control system transmits the test results to the display screen for display, and the turntable transmits the first test card to the exit module 380, and the exit module exits the first test card to the collection box 110. When the collection box has received enough test cards, the test cards are treated as biological waste in an environmentally friendly manner. Other test cards are also detected by the detector in the above manner, and the test cards are treated as biological waste in an environmentally friendly manner after the detection is completed. In this way, the average incubation waiting time of each test card is shortened, and the detection efficiency is improved.

[0071] See also Fig.14 Each detection card 120 includes a mark corresponding to its biological parameter detection item at a suitable position on the upper surface thereof, and the detector has a component for identifying the mark on the detection card. The detector assigns an incubation parameter corresponding to its mark information to each detection card according to the identified information. In a preferred embodiment, the mark on the detection card 120 includes three two-dimensional code marks 121, 122, and 123, each of which corresponds to a piece of information. Multiple groups of information can be obtained by arranging and combining the information of these three two-dimensional codes.

[0072] like Figure 2 , Figure 3 , Fig.15 and Fig.16 As shown, the present invention also includes an anti-pinch mechanism for the door during the closing process. The anti-pinch mechanism includes a mechanical arm 321, a stop block 322 and an elastic element 323. The elastic element includes elastic elements well known to those skilled in the art, such as tension springs, compression springs, springs, torsion springs, rubber bands, etc. The function of the elastic element is to restore the door from an open state to a closed state. The mechanical arm 321 is driven by a second motor 333 and can swing back and forth in a counterclockwise or clockwise direction around a certain base point within a certain angle range. One end of the mechanical arm is a free end 324. When the mechanical arm swings in a counterclockwise direction, the free end pushes the stop block 322 to rotate in a counterclockwise direction. The stop block drives the door to rotate in a counterclockwise direction, thereby opening the door 314. Preferably, the stop block and the door are integrally formed or are separately manufactured and fixedly connected to the door, so that the stop block moves synchronously with the door. More preferably, the stop block protrudes above the door and can abut against the free end 324 of the mechanical arm. As shown in FIG. Fig.17As shown, in another scheme, a fan-shaped track 347 is provided at the top of the door, and a track side wall 348 of the fan-shaped track constitutes the stop block 322. The free end of the mechanical arm is bent downward and extends into the fan-shaped track and can swing back and forth in a counterclockwise or clockwise direction within a certain angle range in the fan-shaped track, but the free end of the mechanical arm can never touch the other relative track side wall of the fan-shaped track 347, so the mechanical arm 321 cannot push the door to move in the clockwise direction. One end of the elastic element 323 is connected to the base 10 or the bracket of the base, so it cannot move, and the other end of the elastic element is connected to the door 314 and can be elastically deformed (for example, stretched or compressed) when the door rotates. When the free end 324 of the mechanical arm swings in the counterclockwise direction, the free end abuts against the stop block 322 (including the side wall 348 of the fan-shaped track), thereby pushing the door to rotate in the counterclockwise direction, and then opening the door. At this time, the elastic element is elastically deformed and accumulates energy to restore the door to a closed state. When the door is opened to the preset maximum angle, the second motor stops, the mechanical arm stops swinging counterclockwise, and the door loses the driving force to continue to swing counterclockwise. On the contrary, the elastic element has accumulated the maximum energy to restore the door to the closed state, so the door cannot be opened at a larger angle (in addition, the support frame 317 also limits the door to open at a larger angle). When the door needs to be closed, the elastic element drives the door to close, and the second motor does not directly drive the door to close. On the contrary, the second motor is used to offset part of the pulling force of the elastic element during the door closing process, playing an auxiliary closing role of slowing down the door closing speed and reducing the impact of the door, thereby avoiding pinching the operator's fingers. In detail, during the process of closing the door, the second motor reverses (clockwise rotation) so that the mechanical arm loses the thrust to push the stop block to rotate in the counterclockwise direction. At this time, the elastic element will pull the door to rotate in the clockwise direction due to recovery deformation (also known as "rebound"). Since the speed of the second motor's reversal is controlled to be relatively slow, under the pulling force of the elastic element, the stop block still rests against the free end of the mechanical arm. Therefore, the speed of the elastic element's rebound will become relatively slow, and the speed of the door closing will also become relatively slow, thereby effectively avoiding the door from having a large impact and pinching the operator's fingers. If there is no second motor, and the door is closed entirely by the elastic element, then the elastic element's rebound force may be relatively large, the door will close faster, and a larger impact force will be generated. Only after the second motor reverses can the elastic element rebound and pull the door. Therefore, when closing the door, the second motor plays a role in assisting in deceleration. At this time, the elastic element releases energy, gradually reduces elastic deformation, and pulls or pushes the door back to the closed state.Regardless of the structure of the mechanical arm 321 and the stop block 322, the mechanical arm can only push the stop block unidirectionally to rotate in the counterclockwise direction, but cannot push the stop block in the opposite direction to rotate in the clockwise direction (because at this time the free end of the mechanical arm cannot apply a force to the stop block to cause the door to rotate clockwise, but it can offset part of the tension of the elastic element and reduce the impact when the door is closed). The door rotates in the clockwise direction by relying on the driving force generated by the elastic element to restore the deformation, and the second motor reverses to offset part of the tension of the elastic element. Therefore, during the closing process of the door, even if the operator's fingers are clamped by the door, the force is not large and will not cause harm to the operator, thereby achieving the purpose of preventing fingers from being clamped. The motor of the present invention is preferably a stepper motor.

[0073] like Figure 2 , Fig.15 and Fig.16 As shown, the detector also includes two fixed optical coupling switches 341 and 342, which correspond to the door being completely closed ( Figure 2 ) and fully open ( Fig.15 and Fig.16 ) is the position of the stop block 322 on the door. When the stop block passes through the two optical coupler switches, the optical coupler switches send a signal to the control system of the detector that the door is completely closed or fully opened. Fig.16 As shown, in one embodiment, the stop block 322 includes a horizontal extension block 343. When the stop block passes through the optocoupler switch 341 or the optocoupler switch 342, the horizontal extension block enters the groove of the optocoupler switch and cuts off the optocoupler, thereby enabling the optocoupler switch to send a signal to the control system of the detector that the door is fully closed or fully opened.

[0074] The present invention also includes a turntable locking mechanism, and when the door is opened, the locking mechanism locks the turntable, so that the turntable cannot rotate or swing, thereby facilitating the accurate insertion of the test card into the corresponding test channel. On the contrary, if there is no locking mechanism, then during the process of inserting the test card into the corresponding test channel on the turntable, the test card may push the turntable to rotate, thereby causing insertion difficulty or failing to fully insert the test card into the corresponding test channel, thereby causing the door to be unable to close or causing the test module to be unable to accurately detect the color or color change of the test area of ​​the test card, thereby causing a test failure.

[0075] like Figure 4 , Figure 5 , Fig.15 , Fig.16 , Figure 18-Figure 23 As shown, the locking mechanism includes a limiting hole 325, a latch 326, a top block 327 and a boss 328. Figure 4 and Figure 5As shown, eight test channels 313 are evenly arranged on the upper surface of the turntable 311. These eight test channels spread from the central axis area of ​​the turntable to the outer circumference of the turntable, and the angles between two adjacent channels are equal, which is about 45 degrees. Each test channel is provided with a protrusion 329 in the central axis area of ​​the turntable. When the front end of the test card abuts against the protrusion 329, the protrusion prevents the test card from being inserted deeper, indicating that the test card has been inserted into place. Therefore, the protrusion 329 has the function of prompting that the test card has been correctly inserted. The turntable 311 is evenly provided with a number of limit holes 325 as described above on the circumference of its central axis area. The number of limit holes is equal to the number of test channels 313 on the turntable. Each limit hole corresponds to a test channel and is distributed in the middle position of the corresponding test channel terminal. As shown Figure 18-Figure 21 As shown, the locking mechanism also includes a boss 328 located on the top surface of the door 314 and a top block 327 cooperating with the boss. The boss and the top block are respectively provided with mutually cooperating slope surfaces 330. When the door is opened or closed, the door 314 drives the boss 328 to rotate, and the slope surface 330 of the boss pushes the top block 327 to move up and down. The top block is fixedly connected to a latch 326 that can move up and down synchronously with the top block, and a spring 331 is sleeved on the middle part of the latch. During the door opening process, the door rotates counterclockwise, driving the boss on the top of the door to rotate counterclockwise together. The top block loses the supporting force of the boss slope. Under the squeezing force of the spring 331, the top block 327 and the latch 326 move downward along the guide column 344, so that the bottom end of the latch is inserted into the limit hole 325 on the turntable. The top block and the latch are restricted to only move up and down in the vertical direction, but not in the horizontal direction (the horizontal movement of the top block and the latch is restricted by the guide column 344 fixed to the base bracket). In this way, the latch 326 restricts the rotation of the turntable, achieving the purpose of locking the turntable. Conversely, during the process of closing the door, if Figure 20-23 As shown, the clockwise rotation of the door drives the boss 328 to rotate clockwise, and the slope surface 330 of the boss overcomes the resistance generated by the compression of the spring 331 to lift the top block 327. Under the guidance of the guide column 344, the top block and the latch 326 in the top block are lifted upward, so that the bottom of the latch is disengaged from the limiting hole 325 on the turntable. At this time, the rotation of the turntable is no longer restricted, thereby achieving the purpose of unlocking. In summary, the locking mechanism locks the turntable when the door is fully opened, so that the turntable is accurately positioned, which is convenient for inserting the test card and other operations; when the door is fully closed, the locking mechanism unlocks the turntable, so that the turntable can operate normally, thereby not affecting the normal operation of the detector of the present invention.

[0076] The present invention also discloses a card ejection mechanism, which is used to eject the test card 120 after the test is completed from the test channel 313 to the collection box 110. Figure 24-Figure 29As shown, the card ejection mechanism includes a third motor 346 fixed on a base bracket 332, a belt 334 driven by the third motor, and a push block 335 fixedly connected to the belt. The belt 334 is preferably a gear belt or a chain, so as to accurately transmit the stroke of the third motor, and the push block 335 moves synchronously with the belt. The push block 335 includes a slider 336, which is driven by the third motor via the belt to slide back and forth in the test channel 313, so as to withdraw the test card after the test from the test channel to the collection box. In order to make it easier to open the mold for producing the turntable, the test channel 313 on the turntable is provided with at least one pair of process grooves 337 (the present invention preferably opens two, three or four pairs of process grooves) at appropriate positions on two opposite side walls. In one embodiment, the process groove runs through the thickness of the turntable, and in another embodiment, the process groove does not run through the thickness of the turntable.

[0077] If the detector is suddenly powered off during the card removal process, and the slider 336 is located at the process slot 337 when the power is off ( Fig.24 and Fig.25 ), when the detector is turned on again or the detector is hit, the originally stationary turntable rotates a little, causing the bottom of the slider 336 to be stuck in the process groove 337, and the slider cannot move, and the test card cannot be ejected into the collection box. To prevent the above situation from happening, Fig.26 and 27 As shown, the present invention designs the length of the bottom of the slider 336 to be greater than the length of the process slot 337, so that even if the slider is located at the position of the process slot during a power outage, the slider will not be stuck in the process slot, and the slider can still slide in the test channel to withdraw the test card into the collection box. In order to facilitate the smooth sliding of the slider in the test channel, the head and tail of the slider are rounded or chamfered, and the two ends of the process slot are also rounded or chamfered, which can further reduce the probability of the slider being stuck in the process slot of the channel. Any pair of the above-mentioned process slots are arranged face to face on the opposite side walls of the test channel ( Fig.25 and Fig. 27 ) or alternate staggered arrangement ( Fig.30 ).like Figure 24-Figure 27 As shown in the figure, if a pair of process grooves are arranged face to face, the two sides of the bottom of the slider intersect with the pair of process grooves at the same time (the sides of the bottom of the slider overlap or partially overlap with the process grooves). At this time, during the sliding process of the slider, the head of the bottom of the slider loses its guidance and may enter the process groove and get stuck in the process groove. Fig.30), so that the two sides of the bottom of the slider do not intersect with the pair of process grooves at the same time (the two sides of the bottom of the slider do not overlap or partially overlap with the pair of process grooves at the same time). At this time, during the sliding process of the slider, only one side of the bottom of the slider loses the guidance of one side wall of the test channel due to the intersection with the process groove, but the other side of the bottom of the slider can still be guided by the other side wall of the test channel, thereby further reducing the probability of the slider being stuck in the process groove. In this embodiment, if Fig.30 As shown, the tops 340 of the test channels are also alternately arranged, so that the top 340 of one side wall of the test channel is opposite to the process groove 337 on the opposite side wall of the test channel, which can further reduce the risk of the bottom of the slider 336 being stuck by the process groove. After the card ejection mechanism ejects the test card that has completed the test from the test channel to the collection box, the card ejection mechanism automatically returns to the initial position, ready to eject the next test card that has completed the test and is transported to the ejection position ( Fig.28 and Fig.29 ).

[0078] like Fig.14 The test card shown includes an upper cover and a lower plate combined with each other, a test strip is installed between the upper cover and the lower plate, and the upper cover includes a sample adding port and an observation window. Three two-dimensional codes are printed on the upper cover of the test card, wherein the first two-dimensional code identification 121 and the second two-dimensional code identification 122 are located upstream of the sample adding port, and the third two-dimensional code identification 123 is located between the sample adding port and the observation window. These three two-dimensional codes correspond to information A, B, and C respectively, so these three two-dimensional codes have a total of twenty-seven combinations, each combination can correspond to one test item, so the combination of these three two-dimensional codes can correspond to twenty-seven test items.

[0079] like Fig.31 and Fig.32 As shown, three scanning windows 501, 502 and 503 are opened on the door. When the turntable drives the test card to rotate, the three scanning windows can correspond to the three QR code logos 121, 122 and 123 of the test card respectively. Three identification recognition devices 318, 319 and 320 (preferably universal QR code scanning devices) are respectively installed on the three scanning windows. The three identification recognition devices scan through the scanning windows arranged at staggered angles on the door, which can reduce the mutual interference of the scanning process and will not cause mis-scanning due to the close distance between the scanning windows (the three QR codes correspond to the three test channel positions respectively, and the scanning devices are also installed in three corresponding positions. The three QR codes are separated by the door and do not interfere with each other, so there will be no mis-scanning).

[0080] The detection system of the present invention includes a detector 1 and a detection card 120. The detector includes a shell 40 and a detection component 30 in the shell. The shell includes an insertion port 210 for inserting the detection card into the detector for detection. The detection component 30 includes a transmission module 310, a test module 350 and an exit module 380. The transmission module includes a circular turntable 311, and eight test channels 313 are arranged on the turntable. The test channels are evenly distributed on the turntable in a star shape. One end of the test channel is close to the center of the turntable and the other end extends to the periphery of the turntable. A detection card can be inserted into each test channel. Three marks 121, 122 and 123 are arranged on the detection card, and the detection component includes identification components 318, 319 and 320 (preferably a universal two-dimensional code scanning device) equal to the number of marks on the detection card. During the process of the turntable transmitting the test card, these identification components successively identify the identification on the test card to form a signal combination and transmit it to the control system of the detector. The signal combination at least includes the minimum incubation time of the test card. After the test card starts to incubate in the detector, the control system of the detector starts to count down for each test card according to the minimum incubation time of each test card and transmits each test card to the test module for testing in the order of the countdown. The test module recognizes the detection signal on the test card and outputs the test result. After the test is completed, the exit module will withdraw the test card from the test channel after the test is completed.

[0081] The three marks on the test card are a two-dimensional code, a bar code or a combination of a two-dimensional code and a bar code. The mark identification components on the detection component are staggered in space. In the process of the turntable transmitting the test card, the first mark on the test card is identified by the first mark on the test card, and then the second mark on the test component identifies the second mark on the test card, and so on, until all the marks on the test card are identified. The three marks on the test card also include information corresponding to the detection biological parameters. The detector can be applied to the detection card of the same biological parameter project or the detection card of different biological parameter projects. The detector sets the minimum incubation time according to the detection biological parameters included in the mark on each test card. The detector also includes a door that can rotate relative to the turntable, and the door is provided with windows 501, 502 and 503 that are equal to the number of marks on the test card and whose positions correspond to the positions of the mark identification components on the detector. When the detector identifies the marks on the test card, these windows allow the marks on the test card to be identified by the corresponding mark identification components on the detector, while reducing the interference of other mark components on the detector.

Claims

1. A detector, comprising a housing and a detection component in the housing, wherein the housing comprises an insertion port for inserting a detection card into the detector for detection, characterized in that: The detection component includes a circular turntable with several test channels, each of which can be inserted with a test card. An automatic card pushing mechanism is arranged at a suitable position on the outer periphery of the turntable. After the detector starts the detection, the turntable drives the test card to rotate. When the test card reaches the position of the automatic card pushing mechanism, the automatic card pushing mechanism automatically pushes the test card that has not been inserted into the position required for the test into the test channel to the position required for the test, thereby accurately positioning the test card in the test channel.

2. The detector according to claim 1, characterized in that: The automatic card pushing mechanism includes an inclined surface facing the outer periphery of the turntable. When the turntable drives the test card to pass through the inclined surface, the inclined surface squeezes the tail of the test card, and the inclined surface pushes the test card to move toward the center of the turntable in the test channel until the test card is inserted into the position required for the test.

3. The detector according to claim 1, characterized in that: The automatic card pushing mechanism includes a spring sheet, which includes an inclined surface facing the outer periphery of the turntable. When the turntable drives the test card to pass through the inclined surface, the inclined surface squeezes the tail of the test card, thereby pushing the test card to move toward the center of the turntable in the test channel until the test card is inserted into the position required for the test.

4. The detector according to claim 1, characterized in that: The turntable is provided with a convex block at the end of each test channel. When the head of the test card is blocked by the convex block during the process of inserting the test card into the test channel, it means that the test card has been inserted to the position required for the test.

5. A detection device, comprising a detector and a detection card, characterized in that: The detector includes a circular turntable with several test channels, each of which can be inserted with a test card. An automatic card pushing mechanism is arranged at a suitable position on the outer periphery of the turntable. When the test card is inserted into the corresponding test channel, the detector starts the test and the turntable rotates. When the tail of the test card passes through the automatic card pushing mechanism, the tail of the test card that has not been inserted to the position required for the test is squeezed by the automatic card pushing mechanism, and the test card automatically slides to the position required for the test in the test channel, thereby accurately positioning the test card in the test channel.

6. The detection device according to claim 5, characterized in that: The automatic card pushing mechanism includes an inclined surface facing the outer periphery of the turntable. When the turntable drives the test card to pass through the inclined surface, the inclined surface squeezes the tail of the test card and pushes the test card to slide in the test channel to the position required for testing.

7. The detection device according to claim 5, characterized in that: The automatic card pushing mechanism includes a spring sheet, which includes an inclined surface facing the outer periphery of the turntable. When the turntable drives the test card to pass through the inclined surface, the inclined surface squeezes the tail of the test card and pushes the test card to slide to the end of the test channel.

8. The detection device according to claim 5, characterized in that: The turntable is provided with a convex block at the end of each test channel. When the head of the test card is blocked by the convex block during the process of inserting the test card into the test channel, it means that the test card has been inserted to the end of the test channel.

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