A hand crush prevention detector

Abstract

The present application relates to a hand clamping prevention detector, comprising a shell and a detection assembly in the shell, the detection assembly comprising a circular turntable, a door movable relative to the turntable, a first motor and a second motor, the turntable being provided with a plurality of test channels, each test channel being capable of inserting a detection card, the turntable being driven to rotate by the first motor and in turn driving the plurality of test channels to rotate, the detection card being capable of being inserted into the test channel when the door is opened, the door preventing the detection card from being inserted into the test channel when the door is closed, the detection assembly further comprising an elastic element for driving the door to close, the second motor being used for driving the door to open when the second motor is forward rotated and being used for offsetting part of the elastic force of the elastic element during the closing process of the door when the second motor is reverse rotated. The detector has a hand clamping prevention structure, preventing the fingers of the operator from being injured by the detector during the operation process, and avoiding the occurrence of medical accidents in the detection and diagnosis field. The present application has a simple structure, low cost and low failure.

Description

Technical Field

[0001] This invention belongs to the field of in vitro diagnostic equipment technology, specifically relating to a finger-pinching detector for reading test card information. Background Technology

[0002] In vitro diagnostics (IVD) is an important component of medical testing. It utilizes ex vivo samples to analyze various physiological indicators of a subject, and the results can be obtained visually or through a testing instrument. During testing, the test card is placed on the stage of the testing instrument and transported inside. A light source illuminates the result display area of ​​the test card, and a photodiode receives the reflected light signal from the test card and transmits the data to the data processing system. The system then analyzes the test results and outputs the final result.

[0003] Fluorescence immunoassay is a technique that combines the specificity of immunological reactions with the sensitivity of fluorescence technology. A fluorescence immunoassay analyzer is based on the principle of immunochromatography. A light source of a specific wavelength illuminates the test area of ​​a test card. The fluorescent label in the test area is excited and emits light of a different wavelength than the light source. This light is captured by a photoelectric sensor, forming a current signal. The magnitude of the current is related to the concentration of the analyte in the sample, thus enabling qualitative or quantitative analysis of the analyte in the sample.

[0004] Fluorescence immunoassay analyzers can be used for both routine fluorescence detection and time-resolved fluorescence assays. Existing fluorescence immunoassay analyzers are available in single-channel and multi-channel types. Single-channel analyzers can only analyze one test plate at a time, resulting in low detection efficiency. Multi-channel analyzers improve detection efficiency. However, existing multi-channel fluorescence immunoassay analyzers often experience the following issues affecting detection: 1. The test card is not fully inserted. When the test card is transferred to the analyzer's detection area, the test area on the card may be misaligned, preventing the analyzer from correctly detecting the test area and resulting in inaccurate results. 2. When the analyzer door is opened and the test card is placed on the turntable, the operator's fingers may touch the turntable, causing it to rotate unnecessarily and affecting the entire testing process. 3. During the analyzer door closing process, if the operator's fingers are not withdrawn in time, they may be caught in the door, causing injury. 4. During the process of the analyzer removing the completed test card, unexpected power outages or other reasons may cause the test card to become stuck in the testing channel and unable to be removed smoothly, leading to analyzer malfunction. 5. One analyzer can only detect one item, lacking versatility. Therefore, when multiple different items need to be tested, multiple corresponding analyzers need to be purchased, significantly increasing costs. This invention arose against this backdrop. Summary of the Invention

[0005] The purpose of this invention is to provide a hand-pinch detection device, which includes a mechanism with an anti-pinch function, enabling the operator to prevent their hand from being pinched during use.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An anti-pinch detection device is provided, comprising a housing and a detection component within the housing. The detection component includes a circular turntable, a door movable relative to the turntable, a first motor, and a second motor. The turntable has several test channels, each of which can accommodate a detection card. The turntable is driven to rotate by the first motor, thereby rotating the several test channels. When the door is open, the detection card can be inserted into the test channel; when the door is closed, the insertion of the detection card into the test channel is prevented. The detection component also includes an elastic element, which drives the door to close. When the second motor rotates forward, it drives the door to open; when it rotates in reverse, it counteracts part of the rebound force of the elastic element during the closing process.

[0007] As a further improvement of the present invention, the detection component includes a robotic arm, and the door includes a stop block; when the second motor rotates forward, it drives the robotic arm to move forward, and the robotic arm pushes the stop block in a pre-set direction to move forward so that the door opens; when the second motor rotates in reverse, it drives the robotic arm to move in the opposite direction, and the robotic arm blocks the stop block and counteracts part of the rebound force of the elastic element so that the door closes.

[0008] As a further improvement of the present invention, the door includes a horizontal portion and a vertical portion extending downward from the edge of the horizontal portion. The vertical portion is an arc shape that conforms to the curvature of the outer periphery of the turntable. The vertical portion is close to the outer periphery of the turntable. A stop block is located on the upper surface of the horizontal portion of the door. A robotic arm is located above the horizontal portion of the door. Driven by a second motor, the end of the robotic arm can reciprocate.

[0009] As a further improvement of the invention, the stop block includes a non-enclosed enclosure structure, the end of the robotic arm extends to one side of the non-enclosed enclosure structure, and the end of the robotic arm can freely enter and exit from the open side of the non-enclosed enclosure without obstruction.

[0010] As a further improvement of the present invention, the detection assembly includes a robotic arm, the door includes a groove, and the end of the robotic arm extends into the groove; when the second motor rotates forward, it drives the robotic arm to move in the forward direction, and the end of the robotic arm pushes a proximal sidewall of the groove to move, thereby opening the door; when the second motor rotates in reverse, it drives the robotic arm to move in the reverse direction, and the end of the robotic arm blocks the proximal sidewall of the groove and counteracts part of the rebound force of the elastic element, thereby closing the door.

[0011] As a further improvement of the invention, the groove is an arc-shaped groove, the proximal sidewall of the groove near the end of the robotic arm is closed, while the distal sidewall of the groove away from the end of the robotic arm can be either closed or open.

[0012] 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. During the process of the second motor rotating in the forward direction to drive the robotic arm to open the door, the elastic deformation of the elastic element gradually increases, thereby accumulating energy. When the second motor reverses to drive the robotic arm, the elastic element gradually rebounds, thereby driving the door to close. The robotic arm abuts against the stop block or the near-end side wall of the groove and counteracts part of the rebound force of the elastic element.

[0013] As a further improvement of the present invention, the elastic element includes a tension spring, a compression spring, a sheet spring, a torsion spring, and a rubber band.

[0014] As a further improvement of the present invention, during the process of the second motor driving the robotic arm to open the door in a preset direction, the elastic element is gradually stretched; when the second motor drives the robotic arm in the opposite direction, the elastic element gradually contracts, thereby driving the door to close.

[0015] As a further improvement of the present invention, the detector also includes two fixed optocoupler switches, which correspond to the positions of the stop blocks on the door when the door is fully closed and fully open, respectively. When the stop blocks pass through the two optocoupler switches, the optocoupler switches send a signal to the control system of the detector that the door is fully closed or fully open.

[0016] In a further technical solution of the present invention, the detector also includes an automatic card pushing mechanism. The detector with the automatic card pushing mechanism can automatically push the detection card that is not inserted into the required detection position into the required detection position, so that the detection card is accurately positioned in the detector and facilitates subsequent detection.

[0017] As a further improvement of the present invention, the automatic card pushing mechanism is set at a suitable position on the outer periphery of the turntable of the transmission module. After the detector is started, the turntable drives the detection card to rotate. When the detection card reaches the position of the automatic card pushing mechanism, the automatic card pushing mechanism automatically pushes the detection card that is not inserted into the required position in the test channel into the required position, so that the detection card is accurately positioned in the test channel.

[0018] 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 detection card past the inclined surface, the inclined surface squeezes the tail of the detection card and pushes the detection card to move in the test channel toward the center of the turntable until the detection card is inserted into the required position for testing.

[0019] As a further improvement of the present invention, the automatic card pushing mechanism includes a spring with an inclined surface facing the outer periphery of the turntable. When the turntable rotates and drives the detection card past the inclined surface, the inclined surface squeezes the tail of the detection card, thereby pushing the detection card to move in the test channel toward the center of the turntable until the detection card is inserted into the required position for testing.

[0020] As a further improvement of the present invention, a protrusion is provided at the end of each test channel on 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 required position for testing.

[0021] On the other hand, in a further technical solution of this invention, the detector also includes a locking mechanism. When the door is in the open state, the first motor stops driving the turntable to rotate, and the locking mechanism automatically locks the turntable to prevent it from rotating. When the door is in the closed state, the locking mechanism automatically releases the turntable, and the first motor drives the turntable to rotate. Locking the turntable during the door opening process prevents it from being accidentally pushed, which could lead to inaccurate turntable positioning and affect the normal operation of the detector.

[0022] As a further improvement of the present invention, the locking mechanism includes the same number of limiting holes as the test channels, a boss, a top block restricted to vertical movement only, and a pin mounted on the top block. The limiting holes are 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 each include a mutually engaging ramp surface. When the door is opening, the ramp surface on the boss gradually releases the ramp surface on the top block, causing the top block to move vertically downward, which in turn drives the pin to move vertically downward. The lower end of the pin enters the limiting hole, and the pin automatically locks the turntable, thereby preventing the turntable from rotating. When the door is closing, the ramp surface on the boss gradually raises the ramp surface on the top block, causing the top block to move vertically upward and driving the pin to move vertically upward, thereby causing the lower end of the pin to leave the limiting hole. The pin automatically releases the turntable, thus not preventing the turntable from rotating.

[0023] As a further improvement of the present invention, a compression spring is fitted in the middle of the latch. During the opening of the door, the door drives the boss to rotate together, and the ramp surface on the boss gradually separates from the ramp surface on the top block. The top block gradually loses the support of the boss, and the compression spring extends 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 restricting its rotation. Conversely, during the closing of the door, the door drives the boss to rotate in the opposite direction, and the ramp surface on the boss matches the ramp surface on the top block, pushing the top block to move vertically upward, lifting the top block, and pushing the latch inside the top block upward, so that the bottom of the latch disengages from the limiting hole on the turntable, thereby unlocking the turntable and making its rotation no longer restricted. At the same time, the compression spring fitted in the middle of the latch is further compressed.

[0024] On the other hand, in a further technical solution of this invention, the detector includes a first motor, a second motor, and a third motor. The first motor drives the turntable to rotate, thereby rotating the plurality of test channels. The second motor opens the door to facilitate the insertion of the test card into the test channel. The third motor removes the completed test card from the turntable. At least one pair of process grooves are provided on the two opposite side walls of the test channel. The detector also includes a slider. When a test card completes testing, the turntable rotates and transports the test card to an initial position near the slider. The third motor starts and drives the slider to push the completed test card out of the test channel from its initial position. Then the slider returns to its 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 get stuck in the process grooves when sliding within the test channel. This effectively avoids the technical problem of the test card getting stuck in the test channel due to accidental power outages, which could cause the detector to malfunction.

[0025] As a further improvement of the present invention, a pair of process grooves are alternately staggered on the two opposite sidewalls of the test channel, so that the two sides of the slider do not intersect with the pair of process grooves at the same time.

[0026] The present invention also provides a detection system having multiple detection channels, capable of accommodating multiple detection cards simultaneously, and applicable to different types of detection cards.

[0027] Specifically, the present invention provides a detection system including a detector and detection cards. The detection components include a conveying module, a testing module, and an exit module. The conveying module includes a circular turntable with at least three testing channels evenly distributed in a star shape on the turntable. One end of each testing channel is near the center of the turntable, and the other end extends to the outer perimeter of the turntable. The detection cards have at least two markings. The detection components include marking recognition components equal in number to the markings on the detection cards. During the conveying of the detection cards by the turntable, these marking recognition components sequentially recognize the markings on the detection cards to form a signal combination, which is then transmitted to the control system of the detector. This signal combination includes at least the minimum incubation time of the detection card. After the detection cards begin incubation in the detector, the control system of the detector starts a countdown for each detection card based on its minimum incubation time and transmits each detection card to the testing module for detection in the order in which the countdown ends. The testing module recognizes the detection signals on the detection cards and outputs the detection results. The exit module is used to remove the detection cards from the testing channels after the detection is completed.

[0028] As a further improvement of the present invention, at least two identifiers on the test card are QR codes, barcodes, or a combination of QR codes and barcodes. The identifier recognition components on the test component are spatially staggered. During the process of the test card being transported by the turntable, the first identifier component on the test component recognizes the first identifier on the test card, and then the second identifier component on the test component recognizes the second identifier on the test card, and so on, until all identifiers on the test card are recognized.

[0029] As a further improvement of the present invention, at least two identifiers on the test card also include information corresponding to the detected biological parameters. The tester can be applied to test cards that detect the same biological parameter items or test cards that detect different biological parameter items.

[0030] As a further improvement of the present invention, the detector sets a minimum incubation time based on the biological parameters to be detected included on each test card.

[0031] As a further improvement of the present invention, the door of the detector is provided with windows that are equal in number to the number of markings on the test card and whose positions correspond to the positions of the marking recognition components on the detector. When the detector recognizes the markings on the test card, these windows enable the markings on the test card to be recognized by the corresponding marking recognition components on the detector, while reducing interference from other marking components on the detector.

[0032] The present invention has the following beneficial effects: 1. The detector of the present invention realizes multi-channel testing, improving the testing speed; 2. The detector has eight testing channels, which can realize the simultaneous incubation and sequential testing of eight identical or different samples. One detector realizes all the functions of eight single-channel detectors, which not only greatly improves the testing efficiency and reduces the cost of purchasing detectors, but also reduces the space occupied by the instruments, saving space and manpower, and has the advantage of low testing cost; 3. Any one of the eight testing channels of the detection system and detector of the present invention can be used as an emergency test, so it is also suitable for use in the laboratory of the emergency department of the hospital, with a wide range of applications; 4. The detector of the present invention can intelligently and automatically identify the identification information on the test card (this information includes information corresponding to the test sample or 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... The instrument automatically transmits the test card to the testing area for testing, thus making it suitable for testing both identical and different samples or testing items, greatly expanding its applicability. 5. The instrument features an automatic card-pushing mechanism that automatically pushes test cards that are not fully inserted to the designated area, resulting in a high success rate. 6. The instrument has an anti-pinch mechanism to prevent operator injuries by pinching fingers during operation, avoiding medical accidents. 7. The instrument has a locking mechanism that locks the turntable when the door is open, effectively preventing accidental rotation and solving technical problems such as difficulty in inserting test cards and disruption of testing due to inaccurate turntable positioning. 8. When removing a completed test card, the instrument effectively solves the problem of test cards getting stuck in the testing channel due to unexpected power outages, significantly reducing the instrument's failure rate. Attached Figure Description

[0033] Figure 1 This is a three-dimensional schematic diagram of the detector of the present invention.

[0034] Figure 2 This is a three-dimensional schematic diagram of the detector of the present invention after the outer shell has been removed.

[0035] Figure 3 yes Figure 2 The enlarged view shows the door fully closed.

[0036] Figure 4 This is a three-dimensional schematic diagram of the detector of the present invention after the upper shell and some components have been removed.

[0037] Figure 5 yes Figure 4 A magnified view of a portion of the image.

[0038] Figure 6 This is a top-down view of the detector after the outer casing has been removed. The detection card is not inserted in the correct position, and the door is open.

[0039] Figure 7 This is a top-down view of the detector after its outer casing has been removed, showing the door blocked by the detection card and unable to close completely.

[0040] Figure 8 This is a top-down view of the detector after its outer casing has been removed. The door is in a state where it is not blocked by the detection card but is not completely closed.

[0041] Figure 9 This is a top-down view of the detector after the outer casing has been removed. The door is fully closed, and the detection card has just touched the automatic card pushing mechanism.

[0042] Figure 10 yes Figure 9 A magnified view of a portion of the image.

[0043] Figure 11 This is a top-down view of the detector after the outer casing has been removed, showing the detector card being pushed into the correct position by the automatic card-pushing mechanism.

[0044] Figure 12 yes Figure 11 A magnified view of a portion of the image.

[0045] Figure 13 This is a top-down view of the detector after the outer casing has been removed, showing the state of the detection card after it has moved through the automatic card pushing mechanism.

[0046] Figure 14 This is a 3D schematic diagram of the test card.

[0047] Figure 15 This is a three-dimensional schematic diagram of the present invention after the outer shell has been removed, with the door in a fully open state.

[0048] Figure 16 yes Figure 15 A magnified view of a portion of the image.

[0049] Figure 17 This is the present invention. Figure 15 A schematic diagram of another embodiment of the shown example.

[0050] Figure 18 This is a cross-sectional view of the detector of the present invention after the outer shell and some components have been removed, with the door fully open.

[0051] Figure 19 yes Figure 18 A magnified view of a portion of the image.

[0052] Figure 20 This is a three-dimensional schematic diagram of the detector of the present invention after the outer shell and some components have been removed, with the door in a completely closed state.

[0053] Figure 21 yes Figure 20 A magnified view of a portion of the image.

[0054] Figure 22 This is a cross-sectional view of the detector of the present invention after the outer shell and some components have been removed, with the door in a fully closed state.

[0055] Figure 23 yes Figure 22 A magnified view of a portion of the image.

[0056] Figure 24 This is a three-dimensional schematic diagram of the detector of the present invention after the outer shell has been removed, with the card ejection mechanism in the card ejection state.

[0057] Figure 25 yes Figure 24 A magnified view of a portion of the image.

[0058] Figure 26 yes Figure 24 A perspective view of another embodiment of the present invention.

[0059] Figure 27 yes Figure 26 A magnified view of a portion of the image.

[0060] Figure 28 yes Figure 24 or Figure 26 The diagram shows the detector in the embodiment returning to its initial state after the card is ejected.

[0061] Figure 29 yes Figure 28 A magnified view of a portion of the image.

[0062] Figure 30 yes Figure 27 A schematic diagram of another embodiment of the example.

[0063] Figure 31 This is a three-dimensional schematic diagram of the invention from another perspective after the outer shell has been removed.

[0064] Figure 32 yes Figure 31 A magnified view of a portion of the image. Detailed Implementation

[0065] The following provides further explanation of the structures involved in this invention and the technical terms used therein. In the detailed description below, the accompanying references are an integral part of this description and are used to illustrate specific embodiments of the invention. We do not exclude the possibility that other embodiments of the invention may be implemented and that the structure of the invention may be modified without departing from the scope of the invention.

[0066] like Figure 1-13 The detector 1 shown includes a base 10, an upper shell 20 that mates with the base, and a detection assembly 30 (see reference). Figure 2 The base and upper shell are combined to form a housing 40, and the detection components are fixed inside the housing. 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 cards 120 after the detection is completed. Figure 4 In a preferred embodiment, the collection box 110 is assembled to the base 10 in a drawer-like manner and can be pulled out from the base.

[0067] Figures 2-13 The structure and operation of the detection component 30 are illustrated. The detection component 30 includes a conveying module 310, a testing module 350, and an ejection module 380. The conveying module conveys the detection card 120 from the insertion port 210 to the testing position, and then conveys the detection card to the ejection position after testing is completed. The testing module 350 uses fluorescence immunoassay to identify the color signal displayed by the detection card 120 after successful testing, and then outputs the test result to the display screen. The ejection module 380 ejects the completed detection card into the collection box 110, where it is then disposed of as biowaste in an environmentally friendly manner.

[0068] like Figure 4 and Figure 5 As shown, the conveying module 310 includes a circular turntable 311, which is powered by a first motor 312 (see reference). Figure 2 The drive rotates around its central axis (not shown). The turntable has several test channels 313, each used to place and fix the test card 120. The number of test channels is preferably two, three, four, five, six, eight, ten, etc. (this invention uses eight as an example for detailed explanation), preferably evenly distributed in a star shape on the turntable, so that the included angle between adjacent test channels is equal, forming a polygonal-like area at the center of the turntable. At the end of each test channel in this polygonal area, a protrusion 329 is provided (see [reference]). Figure 5 (Its function will be described later). For example Figure 2As shown, a door 314 is located above the turntable 311. The door 314 can rotate clockwise or counterclockwise around the central axis of the turntable, thereby opening or closing the door. When the door is open, there is an empty test channel (referred to as the "first test channel") located at the insertion port 210. At this time, the first test card 120 can be inserted. Then the door is closed, the turntable rotates, and the first test card is removed from the insertion port for incubation ("incubation" refers to allowing the biological sample on the test card to fully react with the reagent on the test card 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). Then the second test channel is transferred to the insertion port, the door opens, and after the second test card is inserted, the door closes again. The turntable rotates, and the second test card is removed from the insertion port for incubation. Then the third test channel is transferred to the insertion port, the door opens, and after the third test card is inserted, the door closes. This operation is repeated until all test channels are occupied and secured with test cards. Figure 14 As shown, the test card 120 has symbols (such as one or more QR codes, barcodes, or combinations of QR codes and barcodes, preferably three QR code identifiers 121, 122, and 123) that identify the test card information (such as test items, minimum incubation time, manufacturer, shelf life, production batch, etc.). The test module 350 reads this symbol information and transmits it to the control system of the detector. The control system determines when to send the corresponding test card to the corresponding test position based on the minimum incubation time required for each test card. The test module then starts and detects the color signal or other signals on the test card. The structure of the test card other than the identifier symbols and the operation of the test module are prior art and will not be described in detail here.

[0069] The detector 1 of this invention is applicable to both detector cards of the same type (i.e., several detector cards placed sequentially on the test channel 313 are all detector cards for the same item, and they require the same minimum incubation time in the detector. Therefore, the detector cards are tested sequentially by the test module according to the order in which they are placed, which can shorten the average incubation waiting time of each detector card and thus improve the detection efficiency by several times) and detector cards of different types (for example, some detector cards are for detecting item A, while others are for detecting items B, C, D, etc., and even the detector cards placed in each test channel have different detection items, but the external dimensions and structure of the detector cards should be consistent). In this case, the minimum incubation time required for detector cards of different detection items may be different. In this case, the control system will determine the minimum incubation time required by the detection component 30 based on the symbol information (e.g., QR code) on each detector card. Then, according to the order in which the minimum incubation time is reached, these detector cards are sent to the detection position for detection by the detection module. Therefore, the detector of this invention has better versatility, meaning that one detector can complete multiple different tests, thus achieving the effect of "one machine, multiple functions." This greatly reduces the cost of purchasing multiple detectors of different types and significantly saves the operating space required in the laboratory to house multiple detectors, avoiding waste. The reason why this invention can achieve "one machine, multiple functions" is that, for different tests, apart from the different immunochromatographic reagents on the test strips, the external dimensions and structure of the test cards are the same. The test results of the test cards are all expressed by displaying color (including the intensity of the color) or color changes in the test area of ​​the test card, and the detector's method of recognizing color (including the intensity of the color) is completely the same. The structure of the test card 120, except for the identification symbols, and the content of the internal test strips are existing technologies and will not be described in detail here.

[0070] As mentioned earlier, when door 314 is opened, the detector's control system moves a test channel 313 to a position directly opposite the insertion port 210, making it suitable for inserting a test card. Figures 2-5As shown, the test channel 313 has a slide rail structure with at least one hole 338 at its bottom. Each hole houses an arched spring piece 339, the top of which protrudes beyond the bottom surface of the test channel. At least one process groove 337 is formed on each of the two opposite sidewalls of the test channel to facilitate the manufacture of the turntable. The top of the test channel, excluding the process grooves, has a top 340 extending from the two opposite sidewalls of the test channel at an appropriate distance. The arched spring piece can be any structure, high in the middle and low at both ends, such as an arc, an arch bridge, a trapezoid, or an inverted "V" shape. When the test card 120 is inserted into the test channel 313, the two sidewalls of the test channel act as slide rails to guide the insertion of the test card. The arched spring piece inside the test channel pushes the test card upwards, causing the upper surface of the test card to abut against the top 340 of the test channel, thus accurately positioning the test card. When the test card is continuously inserted until its front end abuts against the protrusion 329 at the end of the test channel (e.g., ...), the test card continues to be inserted until its front end abuts against the protrusion 329 at the end of the test channel. Figure 4 As shown in the image, this indicates that the test card has been fully inserted.

[0071] If the detection card is inserted too shallowly, causing the end of the detection card to remain at a position far from the central axis of the turntable 311 (e.g.) Figure 6 As shown), 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 in the image, 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 display "Please push the detection card all the way" or the voice prompt "Please push the detection card all the way".

[0072] This invention features an automatic card-pushing mechanism that automatically pushes the detection card 120 to the bottom (i.e., to detect the required position). If the detection card is inserted deep enough but not completely to the bottom, for example, if the end of the detection card does not extend beyond the inner edge of the door 314, the end of the detection 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 stop the turntable from rotating. Figure 8 (Displayed as rotating counterclockwise), the turntable drives the detection card to rotate around the central axis of the turntable. For example... Figures 6-13As shown, this invention includes an automatic card-pushing mechanism 315 positioned at a suitable location on the outer periphery of the turntable. This mechanism automatically pushes the partially inserted test card into the final position and securely fixes it within the test channel 313, ensuring accurate positioning of the test card on the turntable. This facilitates the test module 350's detection of the color displayed in the detection area of ​​the test card (the background color is displayed when no substance is detected, and a different color is displayed when a substance is detected) or color changes (from the initial color to a different color after detection). Since the position of the test module 350 is fixed, if the test card is not fully inserted, the color area displayed in the detection area may not align with the required position of the test module. This prevents the test module from accurately recognizing the color signal in the detection area, leading to the detector failing to provide a result or providing an inaccurate result, resulting in test failure. This is clearly a problem that needs to be overcome.

[0073] like Figures 9-13 As shown, the automatic card pushing mechanism 315 includes an inclined surface 316. When the detection card 120 is driven by the turntable until the edge of the end (tail) of the detection card touches the inclined surface 316, the inclined surface applies a force to the end of the detection card, pushing the detection card to slide towards the central axis of the turntable within the test channel, thereby automatically inserting the detection card to the bottom (the position required for detection), aligning the detection area of ​​the detection card with the position required by the test module, so as to facilitate the test module's accurate identification of the color or color change of the detection area of ​​the detection card. In a preferred embodiment, the automatic card pushing mechanism 315 includes a spring piece with one end fixed and the other end free. When the end of the detection card touches the spring piece, the spring piece is squeezed by the end of the detection card and undergoes elastic deformation. The spring piece applies a reaction force to the end of the detection card, thereby pushing the detection card to the bottom, aligning the detection area of ​​the detection card with the position required by the test module, so as to facilitate the test module's accurate identification of the color or color change of the detection area of ​​the detection card. Figure 2 and Figure 10 As shown, the automatic card pushing mechanism 315 is fixed to the outer periphery of the turntable 311 by the support frame 317, which also serves to prevent the door 314 from opening too wide.

[0074] After the first detection card passes through the automatic card pushing mechanism, it continues to rotate counterclockwise. Then, the first detection card passes through the first, second, and third detection card symbol recognition devices 318, 319, and 320 in sequence (see [link]). Figure 2The first test card's three symbols (preferably a QR code) are sequentially identified, and the identified information is transmitted to the detector's control system. The control system then determines the test items and required incubation time for the first test card and begins the incubation countdown. When the incubation time ends, the first test card is transferred to the area designated by the testing module 350 for testing. After testing, the control system displays the results on the screen, and simultaneously, a turntable transfers the first test card to the exit module 380, which ejects it into the collection box 110. When the collection box has collected enough test cards, they are treated as organic waste. Other test cards are tested in the same manner and treated as organic waste after testing. This shortens the average incubation waiting time for each test card and improves testing efficiency.

[0075] Please see Figure 14 Each test card 120 has an identifier corresponding to its bioparameter detection item at a suitable position on its upper surface. The detector has a component that identifies the identifiers on the test card and assigns incubation parameters corresponding to the identifier information to each test card based on the identified information. In a preferred embodiment, the identifiers on the test card 120 include three QR code identifiers 121, 122, and 123. Each QR code corresponds to a piece of information, and multiple sets of information can be obtained by arranging and combining the information from these three QR codes.

[0076] like Figure 2 , Figure 3 , Figure 15 and Figure 16 As shown, the present invention also includes an anti-pinch mechanism for the door during the closing process. This anti-pinch mechanism includes a robotic 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, spring sheets, torsion springs, and rubber bands. The function of the elastic element is to return the door from the open state to the closed state. The robotic arm 321 is driven by a second motor 333 and can swing back and forth in a counterclockwise or clockwise direction within a certain angle range around a base point. One end of the robotic arm is a free end 324. When the robotic arm swings counterclockwise, the free end pushes the stop block 322 to rotate counterclockwise as well, and the stop block in turn drives the door to rotate counterclockwise, thereby opening the door 314. Preferably, the stop block and the door are integrally molded or manufactured separately and then fixedly connected to the door, so that the stop block and the door move synchronously. More preferably, the stop block protrudes above the door and can abut against the free end 324 of the robotic arm. Figure 17As shown, in another embodiment, the top of the door is provided with a sector-shaped track 347. One sidewall 348 of this sector-shaped track forms the stop block 322. The free end of the robotic arm bends downward and extends into the sector-shaped track, and can swing back and forth in a counterclockwise or clockwise direction within a certain angle range within the sector-shaped track. However, the free end of the robotic arm can never touch the other opposite sidewall of the sector-shaped track 347, so the robotic arm 321 cannot push the door to move in a clockwise direction. One end of the elastic element 323 is connected to the base 10 or the support of the base and is therefore immovable. The other end of the elastic element is connected to the door 314 and can undergo elastic deformation (e.g., being stretched or compressed) when the door rotates. When the free end 324 of the robotic arm swings counterclockwise, the free end abuts against the stop block 322 (including the sidewall 348 of the sector-shaped track), thereby pushing the door to rotate counterclockwise and opening the door. At this time, the elastic element undergoes elastic deformation and accumulates energy to return the door to the closed state. When the door opens to the preset maximum angle, the second motor stops, the robotic arm stops swinging counterclockwise, and the door loses the driving force to continue swinging counterclockwise. Instead, the elastic element accumulates the maximum energy to return the door to the closed state, so the door cannot open to a larger angle (in addition, the support frame 317 also limits the door's opening angle). When the door needs to be closed, the elastic element drives the door to close. The second motor does not directly drive the door to close; instead, it counteracts part of the tension of the elastic element during the closing process, playing an auxiliary closing role by slowing down the closing speed and reducing the impact of the door, thereby preventing injury to the operator's fingers. In detail, during the closing process, the second motor reverses (rotates clockwise), causing the robotic arm to lose the thrust that pushes the stop block to rotate counterclockwise. At this time, the elastic element will pull the door to rotate clockwise due to its recovery deformation (also known as "springback"). Because the second motor's reversal speed is controlled to be relatively slow, the stop block remains against the free end of the robotic arm under the pulling force of the elastic element. Therefore, the elastic element's rebound speed becomes smoother, and the door closing speed also becomes smoother, effectively preventing the door from generating a large impact that could pinch the operator's fingers. Without the second motor, relying solely on the elastic element to close the door would result in a larger rebound force and a faster closing speed, generating a greater impact. Only after the second motor reverses can the elastic element rebound and pull the door. Therefore, during closing, the second motor plays an auxiliary role in slowing down the process. At this time, the elastic element releases energy, gradually reducing its elastic deformation, pulling or pushing the door back to the closed state.Regardless of the structure of the robotic arm 321 and the stop block 322, the robotic arm can only push the stop block in one direction to rotate counterclockwise, and cannot push the stop block in the opposite direction to rotate clockwise (because at this time, the free end of the robotic arm cannot apply a force to the stop block to make the door rotate clockwise, but it can offset part of the tension of the elastic element and reduce the impact when the door closes). The door rotates clockwise by the driving force generated by the elastic element restoring its deformation, and the second motor reverses to offset part of the tension of the elastic element. Therefore, even if the operator's finger is caught in the door during the closing process, the force is not large and will not cause injury to the operator, thereby achieving the purpose of preventing finger pinching. The motor of the present invention is preferably a stepper motor.

[0077] like Figure 2 , Figure 15 and Figure 16 As shown, the detector also includes two fixed optocoupler switches 341 and 342, which correspond to the door being fully closed ( Figure 2 ) and fully open ( Figure 15 and Figure 16 The position of the stop block 322 on the door is such that when the stop block passes through the two optocouplers, the optocouplers send a signal to the control system of the detector that the door is fully closed or fully open. Figure 16 As shown, in one embodiment, the stop block 322 includes a horizontal extension block 343. When the stop block passes the optocoupler switch 341 or 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 completely closed or completely open.

[0078] The invention also includes a turntable locking mechanism. When the door is open, this mechanism locks the turntable, preventing it from rotating or swinging, thus facilitating the accurate insertion of the test card into the corresponding test channel. Conversely, without the locking mechanism, the test card may push the turntable to rotate during insertion, making insertion difficult or preventing the test card from being fully inserted into the corresponding test channel. This could lead to the door failing to close or the test module being unable to accurately detect the color or color change of the test area on the test card, resulting in test failure.

[0079] like Figure 4 , Figure 5 , Figure 15 , Figure 16 , Figures 18-23 As shown, the locking mechanism includes a limiting hole 325, a pin 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 extend from the central axis region of the turntable to the outer circumference of the turntable, and the included angle between adjacent channels is equal, approximately 45 degrees. Each test channel has a protrusion 329 in the central axis region of the turntable. During the insertion of the test card into the test channel, when the front end of the test card abuts against the protrusion 329, the protrusion prevents the test card from being inserted further, indicating that the test card has been inserted correctly. Therefore, the protrusion 329 has the function of indicating that the test card has been correctly inserted. A number of limiting holes 325, as described above, are evenly arranged on the circumference of the central axis region of the turntable 311. The number of limiting holes is equal to the number of test channels 313 on the turntable. Each limiting hole corresponds to one test channel and is distributed at the middle position of the end of the corresponding test channel. Figures 18-21 As shown, the locking mechanism also includes a boss 328 located on the top surface of the door 314 and a top block 327 that cooperates with the boss. The boss and the top block are respectively provided with mutually cooperating ramp surfaces 330. When the door is opening or closing, the door 314 drives the boss 328 to rotate, and the ramp surface 330 of the boss pushes the top block 327 to move up and down. The top block is fixedly connected to a pin 326 that can move up and down synchronously with the top block. A spring 331 is sleeved in the middle of the pin. During the opening process, the door rotates counterclockwise, causing the top boss to rotate counterclockwise as well. The top block loses the support of the ramp, and under the compression force of spring 331, the top block 327 and the latch 326 move downwards along guide post 344, causing the bottom end of the latch to insert into the limiting hole 325 on the turntable. The top block and latch are restricted to vertical movement only, not horizontal movement (the horizontal movement of the top block and latch is restricted by the guide post 344 fixed to the base bracket). Thus, the latch 326 restricts the rotation of the turntable, achieving the purpose of locking the turntable. Conversely, during the closing process, if... Figures 20-23 As shown, the clockwise rotation of the door causes the boss 328 to rotate clockwise. The ramp surface 330 of the boss overcomes the resistance generated by the compression of the spring 331, lifting the top block 327. Under the guidance of the guide post 344, the top block, along with the pin 326 inside the top block, rises upward, causing the bottom of the pin to disengage from the limiting hole 325 on the turntable. At this time, the rotation of the turntable is no longer restricted, thus achieving the purpose of unlocking. In summary, the locking mechanism locks the turntable when the door is fully open, ensuring accurate positioning of the turntable and facilitating operations such as inserting detection cards. When the door is fully closed, the locking mechanism unlocks the turntable, allowing it to operate normally without affecting the normal operation of the detector of this invention.

[0080] This invention also discloses a card ejection mechanism for ejecting the completed test card 120 from the test channel 313 into the collection box 110. For example... Figures 24-29As shown, the card ejection mechanism includes a third motor 346 fixed to a base bracket 332, a belt 334 driven by the third motor, and a pusher block 335 fixedly connected to the belt. The belt 334 is preferably a gear belt or chain to facilitate precise transmission of the third motor's stroke, and the pusher block 335 moves synchronously with the belt. The pusher block 335 includes a slider 336, which is driven by the third motor via the belt to slide back and forth within the test channel 313, thereby ejecting the tested card from the test channel into the collection box. To facilitate easier mold opening for the production turntable, the test channel 313 on the turntable has at least one pair of process grooves 337 at suitable positions on two opposite side walls (preferably two, three, or four pairs of process grooves). In one embodiment, the process groove penetrates the thickness of the turntable; in another embodiment, the process groove does not penetrate the thickness of the turntable.

[0081] If the detector suddenly loses power during the card ejection process, and the slider 336 is located at the position of process tank 337 at the time of power failure ( Figure 24 and Figure 25 When the detector is restarted or subjected to a collision, causing the originally stationary turntable to rotate slightly, the bottom of the slider 336 may become stuck in the process slot 337, preventing the slider from moving and thus preventing the detector card from being ejected into the collection box. To prevent this from happening, such as... Figure 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. This ensures that even if the slider is located in the process slot during a power outage, it will not get stuck. Therefore, the slider can still slide within the test channel, ejecting the test card into the collection box. To facilitate smooth sliding of the slider within the test channel, the head and tail of the slider are rounded or chamfered, and the ends of the process slot are also rounded or chamfered. This further reduces the probability of the slider getting stuck in the process slot of the channel. Any pair of the aforementioned process slots are arranged face-to-face on opposite sidewalls of the test channel. Figure 25 and Figure 27 Or alternate staggered arrangement ( Figure 30 ).like Figures 24-27 As shown, if a pair of process slots are arranged face-to-face, and both sides of the bottom of the slider simultaneously intersect with the pair of process slots (the sides of the bottom of the slider overlap or partially overlap with the process slots), then during the sliding process, the head of the slider at the bottom loses its guidance and may enter the process slot and get stuck. If a pair of process slots are arranged alternately and staggered ( Figure 30This design ensures that the two sides of the slider's bottom do not simultaneously intersect with the pair of process grooves (the two sides of the slider's bottom do not simultaneously overlap or partially overlap with the pair of process grooves). In this case, during the sliding process, only one side of the slider's bottom loses guidance from one sidewall of the test channel due to intersecting with the process groove, but the other side of the slider's bottom still receives guidance from the other sidewall of the test channel, thus further reducing the probability of the slider getting stuck in the process groove. In this embodiment, as... Figure 30 As shown, the tops 340 of the test channels are also alternately staggered, 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. This further reduces the risk of the bottom of the slider 336 being stuck by the process groove. After the card ejection mechanism ejects the completed test card from the test channel into the collection box, the ejection mechanism automatically returns to its initial position, ready to eject the next completed test card that has been transported to the ejection position. Figure 28 and Figure 29 ).

[0082] like Figure 14 The test card shown includes an upper cover and a lower plate that are assembled together. A test strip is installed between the upper and lower plates. The upper cover includes a sample dispensing port and an observation window. Three QR codes are printed on the upper cover of the test card. The first QR code (121) and the second QR code (122) are located upstream of the sample dispensing port, and the third QR code (123) is located between the sample dispensing port and the observation window. These three QR codes correspond to information A, B, and C, respectively. Therefore, there are 33 possible combinations of these three QR codes, totaling twenty-seven possible combinations. Each combination can correspond to one test item, so the combinations of these three QR codes can correspond to twenty-seven test items.

[0083] like Figure 31 and Figure 32 As shown, three scanning windows 501, 502, and 503 are provided on the door. As the turntable rotates the test card, these three scanning windows correspond to the three QR code identifiers 121, 122, and 123 on the test card, respectively. Three identifier recognition devices 318, 319, and 320 (preferably general-purpose QR code scanning devices) are respectively installed on the three scanning windows. The three identifier recognition devices scan through the staggered scanning windows on the door, reducing mutual interference during the scanning process and preventing false scanning due to the scanning windows being too close together (the three QR codes correspond to three test channel positions, and the scanning devices are also installed in the corresponding positions; the three QR codes are separated by the door, preventing interference and false scanning).

[0084] The detection system of the present invention includes a detector 1 and a detection card 120. The detector includes a housing 40 and a detection component 30 inside the housing. The housing includes an insertion port 210 for inserting the detection card into the detector for detection. The detection component 30 includes a conveying module 310, a testing module 350, and an exit module 380. The conveying module includes a circular turntable 311 with eight testing channels 313 evenly distributed in a star shape on the turntable. One end of each testing channel is close to the center of the turntable, and the other end extends to the outer periphery of the turntable. Each testing channel can insert one detection card. The detection card has three markings 121, 122, and 123. The detection component includes marking recognition components 318, 319, and 320 (preferably a general-purpose QR code scanning device) equal to the number of markings on the detection card. During the turntable transport of test cards, these identification components sequentially recognize the markings on the test cards, forming signal combinations that are transmitted to the detector's control system. These signal combinations include at least the minimum incubation time for the test card. After the test card begins incubation within the detector, the control system starts a countdown for each test card based on its minimum incubation time. The test cards are then transported to the testing module for testing in the order their countdowns end. The testing module identifies the detection signals on the test cards and outputs the test results. After testing is complete, the exit module removes the tested test cards from the testing channel.

[0085] The three identifiers on the test card are QR codes, barcodes, or a combination of both. The identifier recognition components on the testing assembly are spatially staggered. During the turntable transport of the test card, the first identifier component on the testing assembly recognizes the first identifier on the test card, then the second identifier component recognizes the second identifier, and so on, until all identifiers on the test card are recognized. The three identifiers on the test card also include information corresponding to the detected biological parameters. The testing instrument can be used with test cards that detect the same biological parameter or test cards that detect different biological parameters. The testing instrument sets a minimum incubation time based on the detected biological parameters included in each identifier on the test card. The testing instrument also includes a door that can rotate relative to the turntable. The door has windows 501, 502, and 503, with the same number of identifiers as on the test card and positioned corresponding to the identifier recognition components on the testing instrument. When the testing instrument recognizes the identifiers on the test card, these windows ensure that the identifiers on the test card can be recognized by the corresponding identifier recognition components on the testing instrument, while reducing interference from other identifier components on the testing instrument.

Claims

1. A hand-pinch prevention detector, comprising a housing and a detection component within the housing, characterized in that: The detection assembly includes a circular turntable, a door that can move relative to the turntable, a first motor, and a second motor. The turntable has several test channels, each of which can accommodate a test card. The turntable is driven to rotate by the first motor, which in turn drives the test channels to rotate. When the door is open, the test card can be inserted into the test channel; when the door is closed, insertion is prevented. After the test card is inserted, the door is closed, the turntable rotates, and the test card is removed from the insertion port for incubation. The detection assembly also includes an elastic element used to drive the door to close. The second motor drives the door to open when rotating forward and counteracts part of the rebound force of the elastic element during the closing process when rotating in reverse. When the door needs to be closed, the elastic element drives the door to close. The second motor does not directly drive the door to close; instead, it counteracts part of the tension of the elastic element during the closing process, thus slowing down the closing speed and reducing the impact of the door.

2. The detector as described in claim 1, characterized in that: The detection assembly includes a robotic arm, and the door includes a stop block. When the second motor rotates forward, it drives the robotic arm to move forward. The robotic arm pushes the stop block in a pre-set direction to move forward, thus opening the door. When the second motor rotates in reverse, it drives the robotic arm to move in the opposite direction. The robotic arm blocks the stop block and counteracts part of the rebound force of the elastic element, thus closing the door.

3. The detector as described in claim 2, characterized in that: The door includes a horizontal section and a vertical section extending downward from the edge of the horizontal section. The vertical section is an arc shape that matches the curvature of the outer periphery of the turntable. The vertical section is close to the outer periphery of the turntable. The stop block is located on the upper surface of the horizontal section of the door. The robotic arm is located above the horizontal section of the door. Driven by a second motor, the end of the robotic arm can reciprocate.

4. The detector as described in claim 3, characterized in that: The stop block includes a non-enclosed wall structure, the end of the robotic arm extends to one side of the non-enclosed wall structure, and the end of the robotic arm can freely enter and exit from the open side of the non-enclosed wall without obstruction.

5. The detector as described in claim 1, characterized in that: The detection assembly includes a robotic arm, and the door includes a groove, with the end of the robotic arm extending into the groove. When the second motor rotates forward, it drives the robotic arm to move in the forward direction, and the end of the robotic arm pushes a proximal sidewall of the groove to move, thereby opening the door. When the second motor rotates in reverse, it drives the robotic arm to move in the reverse direction, and the end of the robotic arm blocks the proximal sidewall of the groove and counteracts part of the rebound force of the elastic element, causing the door to close.

6. The detector as described in claim 5, characterized in that: The groove is an arc-shaped groove. The proximal sidewall of the groove near the end of the robotic arm is closed, while the distal sidewall of the groove away from the end of the robotic arm can be either closed or open.

7. The detector as described in any one of claims 2-4, characterized in that: One end of the elastic element is fixed, and the other end is connected to the door. During the process of the second motor rotating in the forward direction and driving the robotic arm to open the door, the elastic deformation of the elastic element gradually increases, thereby accumulating energy. When the second motor reverses and drives the robotic arm, the elastic element gradually rebounds, thereby driving the door to close. The robotic arm abuts against the near-end side wall of the stop block and counteracts part of the rebound force of the elastic element.

8. The detector as described in claim 7, characterized in that: The elastic element includes a tension spring, a compression spring, a sheet spring, a torsion spring, and a rubber band.

9. The detector as described in claim 8, characterized in that: During the process of the second motor driving the robotic arm to open the door in a pre-set direction, the elastic element is gradually stretched; when the second motor drives the robotic arm in the opposite direction, the elastic element gradually contracts, thereby driving the door to close.

10. The detector according to any one of claims 5-6, characterized in that: One end of the elastic element is fixed, and the other end is connected to the door. During the process of the second motor rotating in the forward direction and driving the robotic arm to open the door, the elastic deformation of the elastic element gradually increases, thereby accumulating energy. When the second motor reverses and drives the robotic arm, the elastic element gradually rebounds, thereby driving the door to close. The robotic arm abuts against the near-end sidewall of the groove and counteracts part of the rebound force of the elastic element.

11. The detector as described in claim 10, characterized in that: The elastic element includes a tension spring, a compression spring, a sheet spring, a torsion spring, and a rubber band.

12. The detector as described in claim 11, characterized in that: During the process of the second motor driving the robotic arm to open the door in a pre-set direction, the elastic element is gradually stretched; when the second motor drives the robotic arm in the opposite direction, the elastic element gradually contracts, thereby driving the door to close.

13. The detector as described in claim 2, characterized in that: The detector also includes two fixed optocoupler switches, which correspond to the positions of the stop blocks on the door when the door is fully closed and fully open, respectively. When the stop blocks pass through the two optocoupler switches, the optocoupler switches send a signal to the detector's control system that the door is fully closed or fully open.

Images