Detector

Abstract

The invention relates to a detector. The detector comprises a shell and a detection assembly, the detection assembly comprises a transmission module, a test module and an exit module. The conveying module comprises a circular rotating disc, the rotating disc is provided with at least three testing channels, the testing channels are evenly distributed on the rotating disc in a star shape, and a detection card can be inserted into each testing channel. The detector further comprises a collection box, and the collection box is assembled to the shell or the detection assembly in a drawer mode. And the quit module is used for quitting the detected waste detection card from the test channel. According to the detector, waste detection cards can be collected in the collection box in the detector, the waste detection cards can also be withdrawn out of the detector through the collection box for collection, and the detector is suitable for various operation occasions. When the detector is used for internally collecting waste detection cards, the waste detection cards can be effectively prevented from being accumulated in the detection box, and the number of the waste detection cards collected at a time is increased. The detector can be used for detection platforms for immunofluorescence analysis, immunoturbidimetric analysis, dry biochemical analysis and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of in vitro diagnostic equipment, and in particular relates to a detector. 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 can be used for common fluorescence detection and time-resolved fluorescence determination. Existing fluorescence immunoassays are of two types: single-channel and multi-channel. Single-channel fluorescence immunoassays can only detect one test plate at a time, and the detection efficiency is low. Multi-channel fluorescence immunoassays improve the detection efficiency. However, existing multi-channel fluorescence immunoassays are often prone to the following situations that affect detection: 1. The detector has only one way to collect waste test cards, and the waste test cards can only be collected in the collection box inside the instrument. The capacity of the collection box is limited, which limits its operating occasions and continuous detection capabilities (the instrument will alarm and stop detection when the collection box is full); 2. When collecting waste test cards, the internal collection box of the detector is prone to concentrated accumulation of waste test cards in the collection box, which greatly reduces the number of waste test cards collected by the collection box at one time. The detector frequently alarms to prompt the cleaning of the collection box and frequently stops detection, which greatly reduces the detection efficiency. The present invention was created under such a background. Summary of the invention

[0005] The object of the present invention is to provide a detector having multiple detection channels and capable of accommodating multiple detection cards at the same time. The detector is suitable for two different types of collection boxes for collecting waste detection cards after detection, and can realize the collection of waste detection cards inside the detector and the collection of waste detection cards outside the detector, so that the detector is suitable for a variety of detection occasions.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a detector of the present invention includes a shell and a detection component in the shell, the shell includes an insertion port, the insertion port is used to insert the detection card into the detector for detection, the detection component includes a conveying module, a testing module and an exit module, the conveying module includes a circular turntable, at least three test channels are provided 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, the detector also includes a collection box, the collection box is assembled to the shell or the detection component in the form of a drawer, the exit module is used to exit the waste detection card from the test channel after the detection is completed, the detector can collect the waste detection card in the collection box inside the detector or exit the waste detection card through the collection box to the outside of the detector for collection.

[0007] As a further improvement of the present invention, the collection box includes a slope surface, which includes a peak and a valley. The peak is higher than the valley. The peak is located inside the detector and close to the outer periphery of the turntable and below the outer periphery of the turntable. The valley leads to the outside of the detector. After the waste test card is exited from the test channel by the exit module, it falls onto the slope surface of the collection box and slides out of the detector to be collected through the slope surface.

[0008] As a further improvement of the present invention, the collecting box comprises two triangular or trapezoidal side walls respectively extending downward from two side edges of the slope surface, and the two side walls support the slope surface.

[0009] As a further improvement of the present invention, the collecting box is manufactured from metal sheets through a cold rolling forming process.

[0010] As a further improvement of the present invention, the collection box includes a substantially square bottom and four side walls extending upward from the bottom to a suitable height. The four side walls are connected in pairs and together with the bottom form a collection chamber for collecting waste test cards.

[0011] As a further improvement of the present invention, the detector includes a lever. When the exit module exits the waste test card from the test channel, the lever is located directly below the waste test card. When the waste test card falls downward from the test channel, it touches the lever and changes its position in the collection chamber.

[0012] As a further improvement of the present invention, the lever is fixed on the detection component or the collection box.

[0013] As a further improvement of the present invention, the top of the collection box includes a beam spanning two opposite side walls, and the waste test card touches the beam during the process of falling downward from the test channel, thereby changing the position of the waste test card falling into the collection chamber.

[0014] As a further improvement of the present invention, the cross section of the top of the beam is a structure that is high in the middle and low on both sides.

[0015] As a further improvement of the present invention, the longitudinal direction of the beam is the same as the insertion direction of the collecting box.

[0016] The beneficial effects of the present invention are as follows: compared with the prior art, the present invention has the following advantages: 1. The detector of the present invention has multiple detection channels, can detect multiple detection cards at the same time, and has high detection efficiency; 2. The detector of the present invention is suitable for two collection boxes, which can realize the collection of waste detection cards inside the detector and outside the instrument, so it can be applied to more occasions; 3. The present invention can effectively solve the technical problem of waste detection cards accumulating in the collection box when collecting waste detection cards inside the detector, so that the collection box can collect more waste detection cards before the detector alarms, which greatly prolongs the continuous operation time of the detector and the number of detections, and improves the working efficiency of the detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional appearance schematic diagram of the detector of the present invention.

[0018] Figure 2 It is a three-dimensional schematic diagram of the detector of the present invention with the outer shell removed.

[0019] Figure 3 It is a three-dimensional schematic diagram of the detector of the present invention after removing the upper cover and some components, and the collection box is in a state where it has not yet been inserted.

[0020] Figure 4 This is a schematic diagram of the collection box being inserted into the detector.

[0021] Figure 5 It is a three-dimensional appearance schematic diagram of another embodiment of the detector of the present invention, which adopts another collection box.

[0022] Figure 6 yes Figure 5 The embodiment is a three-dimensional schematic diagram after removing the upper cover and some components, and the collection box is in an inserted state.

[0023] Figure 7 yes Figure 6 A schematic diagram of another embodiment of the present invention.

[0024] Figure 8 yes Figure 7 Schematic diagram of the collection box in the state where it has not been inserted.

[0025] Fig. 9 yes Figure 8 The enlarged schematic diagram of the three-dimensional appearance of the collection box shown.

[0026] Fig.10 yes Fig. 9 Another perspective diagram of the collection box in. DETAILED DESCRIPTION

[0027] 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.

[0028] like Figure 1-10 The detector 1 shown in the figure comprises a base 10, an upper cover 20 matched with the base, and a detection assembly 30 (refer to Figure 2 ), wherein the base and the upper cover are combined into a housing 40, and the detection component is fixed inside the housing. The upper cover 20 includes an insertion port 210, a display screen 220 and a printing port 230. Figure 3 As shown, a collection box 110 is provided on one side of the base 10 for collecting the test cards (referred to as "waste test cards" in the present invention) 120 after the test. In a preferred embodiment, the collection box 110 is assembled to the base 10 or the test assembly 30 in the form of a drawer, and can be pulled out from the base or the test assembly.

[0029] Figure 2-Figure 4 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 waste detection card to the card exit position after the detection is completed. The test module 350 adopts a fluorescent immunological method to identify the fluorescent 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 waste detection card after the detection is completed to the collection box 110, and then treat it as biological waste for centralized environmental protection treatment. Since the biological samples detected by the detection card may include biological samples with strong infectiousness, it must be centralized and processed by professionals at a specified location in accordance with standard operating specifications. The relevant operating specifications strictly prohibit non-professionals from arbitrarily handling or even discarding these waste detection cards at any time and place to prevent biological waste pollution, even leading to the spread of infectious diseases, and bringing serious harm and huge losses to society.

[0030] like Figure 2-Figure 4 As shown, the conveying module 310 includes a circular turntable 311, which is driven by a first motor 312 (refer to Figure 2) drives the turntable to rotate around its central axis (not shown). The turntable is provided with a plurality of test channels 313, which are evenly distributed on the turntable in a star shape, with one end of the test channel close to the center of the turntable and the other end extending to the periphery of the turntable. A detection card 120 can be inserted into each test channel. The number of test channels is preferably two, three, four, five, six, eight, ten, etc. (the present invention is described in detail using eight as an example), and they are 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 (please refer to Figure 3 , which is used to resist the front end of the detection card 120 so that the detection card can be accurately positioned in the test channel 313). Figure 2 As shown, a door 314 is provided above the turntable 311, and the door 314 can reciprocate clockwise or counterclockwise around the central axis of the turntable to open or close the door. When the door is opened, 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 fully reacted 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. The test module starts and detects the color signal or other signal on the test card.

[0031] The present invention also discloses a card ejection mechanism, which is used to eject the waste test card 120 after the test is completed from the test channel 313 to the collection box 110. Figure 2 As shown, the card ejection mechanism includes a third motor 346 fixed on the 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 to facilitate accurate transmission of 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 eject the waste test card after the test from the test channel to the collection box.

[0032] The detector of the present invention has two ways to collect waste test cards: first, the waste test cards can be withdrawn from the detector through a collection box for collection; second, the waste test cards can be collected in a collection box inside the detector. The present invention implements the above schemes by selecting two different collection boxes. This is described in detail below.

[0033] like Figure 3 As shown, in one embodiment, the collection box 110 includes a slope surface 111 and two side walls 112 and 113 extending downward from two sides of the slope surface, respectively. The two side walls are triangular or trapezoidal structures and are used to support the slope surface. The slope surface 111 includes a slope peak 114 and a slope valley 115, and the slope peak is higher than the slope valley. Figure 4 As shown, when the collection box is inserted into the base 10 or the detection assembly 30, the slope peak 114 is located inside the detector and close to the outer periphery of the turntable 311 and below the outer periphery of the turntable, and the slope valley 115 leads to the outside of the detector. When the waste detection card 120 is withdrawn from the test channel 313 by the withdrawal module 380, under the action of gravity, the waste detection card falls to the slope surface 111 of the collection box, then slides down along the slope surface to the outside of the detector and falls into the recovery bucket outside the detector for collection. Then it is transported to a designated location for unified harmless and environmentally friendly treatment. The collection box 110 in this embodiment is preferably made of metal sheet by cold rolling forming process. The material of the metal sheet includes: stainless steel plate, galvanized plate, tinplate, cold rolled plate and other metal materials that have certain mechanical strength and are easy to mechanically cold process and are not easy to rust. Since the waste detection card is directly discharged into the recovery bucket outside the detector for collection in this embodiment, the capacity of the recovery bucket is generally large, so a large number of waste detection cards can be recovered at one time. Furthermore, a plurality of recycling bins can be prepared for replacement, so the present embodiment can realize uninterrupted testing operations, and is particularly suitable for hospital laboratories, physical examination center laboratories, blood testing stations, and specialized testing institutions with large testing volumes.

[0034] like Figure 5 and Figure 6As shown, in another embodiment, the collection box 110 is assembled to the base 10 or the detection assembly 30 in a drawer manner, and the waste detection cards 120 are collected inside the detector. In this embodiment, the collection box 110 includes a roughly square bottom 116 and four side walls 117 extending upward from the bottom to an appropriate height. The four side walls are connected in pairs and together with the bottom form a collection chamber 118 for collecting waste detection cards. In this embodiment, the waste detection cards 120 fall into the collection chamber 118 of the collection box after being withdrawn by the card withdrawal module for collection. After the collection box collects a certain number of waste detection cards, the detector will issue a warning to clean the collection box. If the collection box is not cleaned in time, the detector will automatically stop running and continue to give warnings to clean the collection box until the collection box is cleaned and reassembled to the detector. In this embodiment, the waste test boxes are collected inside the detector, and no external recycling bucket is required. Therefore, it is easy to carry and is particularly suitable for those occasions with small test volume but high requirements for carrying, such as mobile testing stations, emergency centers, mobile blood collection vehicles, medical offices in remote areas, or temporary testing points. In this embodiment, the detector includes a lever 119. When the withdrawal module 380 withdraws the waste test card 120 from the test channel 313, the lever 119 is located directly below the waste test card 120. The waste test card touches the lever during the process of falling from the test channel and changes the position of falling into the collection chamber. In this way, the waste test cards can be evenly stacked in the collection box, avoiding the accumulation of waste test cards and the center of the collection box, thereby greatly increasing the number of waste test cards collected by the collection box. In this embodiment, the lever 119 is fixed to the detection component 30 or the collection box 110.

[0035] like Figure 7-10 As shown, in another embodiment, the top of the collection box 110 includes a beam 121 spanning two opposite side walls. When the waste test cards fall down from the test channel, they touch the beam and change the position of falling into the collection chamber, thereby diverting the waste test cards. In this way, the waste test cards can be evenly stacked in the collection box, avoiding the accumulation of waste test cards and the center of the collection box, thereby greatly increasing the number of waste test cards collected by the collection box. Fig. 9 and Fig.10 As shown, the cross section of the top of the beam 121 is a structure that is high in the middle and low on both sides, which is similar to the structure of a roof. In this embodiment, the beam 121 is located in the middle area of ​​the top of the collection box and the longitudinal direction of the beam is the same as the direction in which the waste test cards are withdrawn in the test channel. In this way, after the waste test cards fall onto the beam 121, they slide down from the top of the beam to the two sides and are diverted to the collection chamber in the collection box, thereby effectively avoiding the waste test cards from accumulating in the central area of ​​the collection chamber, thereby greatly increasing the number of waste test cards collected by the collection box.

[0036] Since the detector of the present invention is applicable to two different collection boxes, it can be applied to different work places respectively, thus improving the applicability or versatility of the detector. In addition, the collection box included in the present invention can effectively solve the problem of waste test cards accumulating in the central area of ​​the collection chamber, greatly increasing the number of waste test cards collected by the collection box, thereby increasing the duration of continuous detection and the number of tests completed by the detector each time it warns to clean the test box, which is a significant improvement.

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 conveying module, a testing module and an exit module. The conveying module includes a circular turntable on which at least three testing channels are arranged. The testing channels are evenly distributed on the turntable in a star shape. One end of the testing channel is close to the center of the turntable and the other end extends to the periphery of the turntable. A testing card can be inserted into each testing channel. The detector also includes a collecting box, which is assembled to the shell or the detection component in the form of a drawer. The exit module is used to exit the waste testing cards from the testing channel after the detection is completed. The detector can collect the waste testing cards in the collection box inside the detector or exit the waste testing cards through the collection box to the outside of the detector for collection.

2. The detector according to claim 1, characterized in that: The collection box includes a slope surface, which includes a peak and a valley. The peak is higher than the valley. The peak is located inside the detector and close to the outer periphery of the turntable and below the outer periphery of the turntable. The valley leads to the outside of the detector. After the waste test card is exited from the test channel by the exit module, it falls onto the slope surface of the collection box and slides out of the detector through the slope surface for collection.

3. The detector according to claim 2, characterized in that: The collecting box comprises two triangular or trapezoidal side walls respectively extending downward from two side edges of the slope surface, and the two side walls support the slope surface.

4. The detector according to claim 3, characterized in that: The collecting box is made of metal sheets through a cold rolling forming process.

5. The detector according to claim 1, characterized in that: The collection box comprises a substantially square bottom and four side walls extending upward from the bottom to a suitable height. The four side walls are connected in pairs and together with the bottom form a collection chamber for collecting waste detection cards.

6. The detector according to claim 5, characterized in that: The detector includes a lever, which is located directly below the waste test card when the exit module exits the waste test card from the test channel. The waste test card touches the lever during the process of falling downward from the test channel, changing the position of the card falling into the collection chamber.

7. The detector according to claim 6, characterized in that: The lever is fixed on the detection component or the collection box.

8. The detector according to claim 5, characterized in that: The top of the collection box includes a beam spanning two opposite side walls. When the waste test card falls downward from the test channel, it touches the beam and changes the position of the waste test card falling into the collection chamber.

9. The detector according to claim 8, characterized in that: The cross section of the top of the beam is a structure that is high in the middle and low on both sides.

10. The detector according to claim 9, characterized in that: The longitudinal direction of the beam is the same as the insertion direction of the collecting box.

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