Multi-channel parallel pretreatment device and medical equipment

Abstract

The multi-channel parallel pretreatment device comprises a portal frame, medical equipment is provided with a guide rail and a first driving element, the portal frame and the guide rail are movably arranged, the first driving element is in transmission connection with the portal frame, and the top of the portal frame is provided with a second driving element; the sample extraction mechanism is arranged on the portal frame and comprises a first mounting frame, a third driving element and an extraction assembly, a second driving element drives the first mounting frame to ascend and descend in the vertical direction, and the third driving element can drive the extraction assembly to act in the vertical direction so as to suck and spit samples; the sample pretreatment mechanism is arranged on the portal frame and comprises a second mounting frame, a fourth driving element and a pretreatment assembly, the second driving element drives the second mounting frame to ascend and descend in the vertical direction, and the fourth driving element can drive the pretreatment assembly to move in the vertical direction so as to transfer the magnetic particles. The utility model further provides medical equipment. The multi-channel parallel pretreatment device disclosed by the utility model can move relative to the reaction bin device, so that the pretreatment speed is accelerated.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and particularly relates to a multi-channel parallel preprocessing device and a medical equipment. Background Technique

[0002] As a rapidly developing non-radioactive immunoassay technology, chemiluminescence immunoassay technology has become one of the important directions in immunological detection. Its principle is to directly measure the immune reaction using chemiluminescence signals. Chemiluminescence devices applying chemiluminescence immunoassay technology have advantages such as high sensitivity, good repeatability, high accuracy, good specificity, and wide linear range.

[0003] POCT (Point-Of-Care Testing) is a detection method that immediately conducts clinical tests at the sampling site, eliminating the complex processing procedures of specimens in the laboratory test, and thus quickly obtaining test results. It has the characteristics of simple instrument preparation, easy operation, and rapid reporting of results.

[0004] Currently, by applying chemiluminescence immunoassay technology to POCT products, POCT fully automatic chemiluminescence devices have been manufactured. Such devices have the advantages of immediate detection and rapid obtaining of diagnostic results, and have been rapidly and widely promoted in the in vitro diagnosis industry.

[0005] POCT fully automatic chemiluminescence devices generally include a reaction chamber module and a preprocessing module. The reaction chamber module is used to load reagent strips sealed with various reagents, and it moves the reagent strips to the preprocessing module for corresponding processing. With the increasing requirement for detection speed, how to further improve the detection speed of POCT fully automatic chemiluminescence devices has become a problem that many manufacturers are working hard to solve. Content of the Utility Model

[0006] An embodiment of the utility model provides a multi-channel parallel preprocessing device, aiming to solve the technical problem of how to further improve the detection speed of POCT fully automatic chemiluminescence devices.

[0007] An embodiment of the utility model is implemented as follows. A multi-channel parallel preprocessing device for medical equipment, the multi-channel parallel preprocessing device includes:

[0008] A gantry. A guide rail and a first driving element are provided on the medical equipment. The gantry is movably arranged with the guide rail. The first driving element is in transmission connection with the gantry, and a second driving element is provided at the top of the gantry;

[0009] a sample extraction mechanism disposed on the gantry, the sample extraction mechanism comprising a first mounting frame disposed on the gantry and drivingly connected to the second driving element, a third driving element disposed on the first mounting frame, and an extraction component disposed on the first mounting frame and drivingly connected to the third driving element, the second driving element being capable of driving the first mounting frame to rise and fall in a vertical direction, and the third driving element being capable of driving the extraction component to move in a vertical direction to aspirate and discharge samples; and

[0010] A sample pre-processing mechanism is arranged on the gantry, and the sample pre-processing component includes a second mounting frame arranged on the gantry and connected to the first driving element, a fourth driving element arranged on the second mounting frame, and a pre-processing component arranged on the second mounting frame and connected to the fourth driving element, the second driving element can drive the second mounting frame to rise and fall in the vertical direction, and the fourth driving element can drive the pre-processing component to move in the vertical direction to transfer magnetic particles.

[0011] Furthermore, the extraction component comprises:

[0012] An injection device is arranged on the first mounting frame, wherein a syringe cavity is formed in the injection device, a first loading head for loading a tip head is arranged at the bottom of the injection device, and the first loading head is communicated with the syringe cavity;

[0013] a first push plate disposed above the injection device, the first push plate being drivingly connected to the third driving element; and

[0014] The piston rod is arranged on the first push plate, and the piston rod is movably and sealedly connected to the syringe cavity. The third driving element can drive the first push plate to drive the piston rod to rise and fall in the syringe cavity to perform a suction and exhalation action.

[0015] Furthermore, the sample extraction mechanism also includes:

[0016] A push rod that can be lifted and lowered and passes through the injection device, wherein the top end of the push rod is spaced apart from the first push plate;

[0017] an elastic element sleeved on the push rod in the injection device, wherein the elastic element is stretched or compressed simultaneously when the push rod is lifted or lowered relative to the injection device; and

[0018] A separation plate is arranged at the bottom of the injection device, the first loading head passes through the separation plate, the bottom end of the push rod is connected to the separation plate, and the push rod can drive the separation plate to rise and fall relative to the first loading head.

[0019] Furthermore, there are a plurality of syringe cavities, and the plurality of syringe cavities are evenly distributed in the injection device along the length direction of the injection device;

[0020] There are a plurality of first loading heads, and the plurality of first loading heads are evenly distributed at intervals along the length direction of the injection device at the bottom of the injection device;

[0021] There are multiple piston rods, and the multiple piston rods are evenly distributed on the first push plate along the length direction of the first push plate.

[0022] Furthermore, the pre-processing component includes:

[0023] A magnetic bar device is arranged on the second mounting frame, wherein an active through hole is formed in the magnetic bar device, and a second loading head for loading a disposable magnetic separation sleeve is arranged at the bottom of the magnetic bar device, and the second loading head is communicated with the active through hole;

[0024] a second push plate disposed above the magnetic bar device, the second push plate being drivingly connected to the fourth driving element; and

[0025] A connecting rod is arranged on the second pushing plate, and a magnetic bar is arranged on the free end of the connecting rod. The fourth driving element can drive the second pushing plate to drive the magnetic bar to rise and fall in the corresponding movable through hole so as to be separated from the second loading head or pass through the second loading head.

[0026] Furthermore, the magnetic bars are arranged in multiple rows, and the magnetic bars in the multiple rows are evenly spaced and distributed along the width direction of the second push plate;

[0027] There are multiple magnetic bars in each row, and the multiple magnetic bars in each row are evenly spaced and distributed along the length direction of the second pushing plate.

[0028] Furthermore, the sample extraction mechanism is opposite to the sample pre-processing mechanism, and the sample extraction mechanism is located in front of the sample pre-processing mechanism, and the second driving element, the third driving element and the fourth driving element are linearly arranged on the top of the gantry.

[0029] Furthermore, the gantry is provided with an activity space, the transmission shaft of the second driving element passes through the activity space, a transmission plate is sleeved on the transmission shaft, and the transmission plate can be raised and lowered in the activity space when the transmission shaft moves;

[0030] A first connection portion is provided on a side of the first mounting frame facing the gantry, and a second connection portion is provided on a side of the second mounting frame facing the gantry. Both the first connection portion and the second connection portion are connected to the transmission plate.

[0031] Furthermore, a driving pulley is provided on the transmission shaft of the first driving element. An installation base is provided at the front end of the medical device, and a driven pulley is provided on the installation base. The driving pulley is in transmission connection with the driven pulley through a belt, and a timing belt pressing plate connected to the belt is provided at the bottom of the gantry.

[0032] Furthermore, the first driving element is a lead screw motor, and the transmission shaft of the first driving element is in transmission connection with the gantry.

[0033] An embodiment of the present utility model further provides a medical device, including:

[0034] An installation frame, on which a guide rail and a first driving element are provided;

[0035] A reaction chamber device provided on the installation frame, which can reciprocate along the length direction of the installation frame and is used for loading reagent strips;

[0036] A PMT device provided at the rear end of the installation frame and above the reaction chamber device. The reaction chamber device is used to move the reagent strip to the PMT device, and the PMT device is used to detect the luminous value of the detection position of the reagent strip; and

[0037] The multi-channel parallel pre-processing device according to any one of the above, the multi-channel parallel pre-processing device is movably arranged with the guide rail and in transmission connection with the first driving element, and the multi-channel parallel pre-processing device can reciprocate along the guide rail under the drive of the first driving element.

[0038] In the multi-channel parallel pre-processing device of the embodiment of the present utility model, by movably arranging the gantry with the guide rail on the medical device and in transmission connection with the first driving element, the multi-channel parallel pre-processing device can move in the medical device and move relative to the reaction chamber device in the medical device, accelerating the speed of the reagent strip moving to the multi-channel parallel pre-processing device, thereby accelerating the pre-processing speed of the multi-channel parallel pre-processing device for the reagent strip, so as to achieve the purpose of improving the analysis efficiency of the medical device.

[0039] Moreover, by separately arranging the sample extraction mechanism for aspirating and discharging samples and the sample pretreatment mechanism for transferring magnetic particles, the reaction chamber device can correspond to the sample extraction mechanism and the sample pretreatment mechanism respectively to achieve corresponding processing of different parts without having to drive the reagent strip to move a long distance. The second driving element can drive the sample extraction mechanism and the sample pretreatment mechanism to lift respectively, the third driving element can drive the extraction assembly to lift, and the fourth driving element can drive the pretreatment assembly to lift. Combined with the horizontal reciprocating drive of the first driving element for the sample extraction mechanism and the sample pretreatment mechanism, the movement range of the multi-channel parallel pretreatment device is greatly improved, the comprehensive pretreatment of the reagent strip is realized, and the pretreatment efficiency is improved. Description of the Drawings

[0040] Figure 1 is a three-dimensional schematic diagram of the medical device according to an embodiment of the present invention;

[0041] Figure 2 is a three-dimensional schematic diagram of a part of the medical device according to an embodiment of the present invention;

[0042] Figure 3 is a three-dimensional schematic diagram of the mounting frame according to an embodiment of the present invention;

[0043] Figure 4 is a three-dimensional schematic diagram of the multi-channel parallel pretreatment device according to an embodiment of the present invention;

[0044] Figure 5 is a three-dimensional disassembled schematic diagram of the multi-channel parallel pretreatment device according to an embodiment of the present invention;

[0045] Figure 6 is a structural schematic diagram of the multi-channel parallel pretreatment device according to an embodiment of the present invention;

[0046] Figure 7 is a three-dimensional schematic diagram of the gantry according to an embodiment of the present invention;

[0047] Figure 8 is a three-dimensional schematic diagram of the sample extraction mechanism according to an embodiment of the present invention;

[0048] Figure 9 is a three-dimensional schematic diagram of the sample pretreatment mechanism according to an embodiment of the present invention.

[0049] Main Element Symbol Description:

[0050] Multi-channel parallel pre-processing device - 10; gantry - 11; active space - 111; drive plate - 112; second drive element - 12; sample extraction mechanism - 13; first mounting bracket - 131; third drive element - 132; extraction assembly - 133; injection device - 1331; first loading head - 1332; first push plate - 1333; piston rod - 1334; push rod - 1335; elastic element - 1336; separation plate - 1337; sample pre-processing mechanism - 14; second mounting bracket - 141; fourth drive element - 142; pre-processing assembly - 143; magnetic rod device - 1431; second loading head - 1432; second push plate - 1433; connecting rod - 1434; magnetic rod - 1435; mounting frame - 20; guide rail - 21; first drive element - 22; driving pulley - 23; mounting seat - 24; driven pulley - 25; reaction chamber device - 30; PMT device - 40; medical device - 100. Detailed implementation mode

[0051] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the attached drawings and embodiments. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model. In addition, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0052] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated in the description of the direction and positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0053] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0054] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0055] Please refer to Figures 1 to 9 , the multi-channel parallel preprocessing device 10 of the embodiment of the present utility model is used for a medical device 100, and it includes:

[0056] A gantry 11, a guide rail 21 and a first driving element 22 are provided on the medical device 100. The gantry 11 is movably arranged with the guide rail 21, the first driving element 22 is in transmission connection with the gantry 11, and a second driving element 12 is provided at the top of the gantry 11;

[0057] A sample extraction mechanism 13 provided on the gantry 11. The sample extraction mechanism 13 includes a first mounting frame 131 provided on the gantry 11 and in transmission connection with the second driving element 12, a third driving element 132 provided on the first mounting frame 131, and an extraction assembly 133 provided on the first mounting frame 131 and in transmission connection with the third driving element 132. The second driving element 12 can drive the first mounting frame 131 to lift in the vertical direction, and the third driving element 132 can drive the extraction assembly 133 to act in the vertical direction to aspirate and discharge samples; and

[0058] A sample preprocessing mechanism 14 provided on the gantry 11. The sample preprocessing assembly 143 includes a second mounting frame 141 provided on the gantry 11 and in transmission connection with the first driving element 22, a fourth driving element 142 provided on the second mounting frame 141, and a preprocessing assembly 143 provided on the second mounting frame 141 and in transmission connection with the fourth driving element 142. The second driving element 12 can drive the second mounting frame 141 to lift in the vertical direction, and the fourth driving element 142 can drive the preprocessing assembly 143 to act in the vertical direction to transfer magnetic microparticles onto the reagent strip.

[0059] In the multi-channel parallel preprocessing device 10 according to the embodiment of the present utility model, by movably arranging the gantry 11 on the guide rail 21 of the medical device 100 and drivingly connecting it with the first driving element 22, the multi-channel parallel preprocessing device 10 can move in the medical device 100 and can move relative to the reaction chamber device 30 in the medical device 100, so as to accelerate the speed of the reagent strip moving to the multi-channel parallel preprocessing device 10, thereby accelerating the preprocessing speed of the multi-channel parallel preprocessing device 10 for the reagent strip, so as to achieve the purpose of improving the analysis efficiency of the medical device 100.

[0060] Moreover, by separately arranging the sample extraction mechanism 13 for sucking and spitting samples and the sample preprocessing mechanism 14 for transferring magnetic particles, the reaction chamber device 30 can correspond to the sample extraction mechanism 13 and the sample preprocessing mechanism 14 respectively to realize the corresponding processing of different parts without driving the reagent strip to move a long distance. The second driving element 12 can respectively drive the sample extraction mechanism 13 and the sample preprocessing mechanism 14 to lift, the third driving element 132 can drive the extraction assembly 133 to lift, and the fourth driving element 142 can drive the preprocessing assembly 143 to lift. Combined with the horizontal reciprocating drive of the sample extraction mechanism 13 and the sample preprocessing mechanism 14 by the first driving element 22, the movement range of the multi-channel parallel preprocessing device 10 is greatly improved, the comprehensive preprocessing of the reagent strip is realized, and the preprocessing efficiency is improved.

[0061] In this embodiment, the medical device 100 is a POCT fully automatic chemiluminescence device.

[0062] Specifically, the gantry 11 spans the width direction of the medical device 100, so that the sample extraction mechanism 13 and the sample preprocessing mechanism 14 can span above the reaction chamber device 30 to realize multi-channel parallel preprocessing. The guide rail 21 can extend along the length direction of the medical device 100. A sliding seat can be arranged at the bottom of the gantry 11 to cooperate with the guide rail 21 for movably setting with the guide rail 21, or a sliding groove can be arranged at the bottom of the gantry 11 to cooperate with the guide rail 21 to realize movably setting. By drivingly connecting the gantry 11 with the transmission shaft of the first driving element 22, the reciprocating movement of the multi-channel parallel preprocessing device 10 in the medical device 100 can be realized by driving the gantry 11 by the first driving element 22.

[0063] The first driving element 22 provides power for the reciprocating movement of the multi-channel parallel pre-processing device 10. It can be a driving element such as a lead screw motor or a stepper motor. The lead screw motor has high movement accuracy, and the stepper motor has high transmission efficiency. Select according to actual needs. The first driving element 22 can be located at the rear end of the medical device 100. Combined with the guide rail 21 extending along the length direction of the medical device 100, the multi-channel parallel pre-processing device 10 can move a sufficient distance in the medical device 100 and can stably reciprocate in the medical device 100, thereby ensuring that it can stably move relative to the reaction chamber device 30 for a sufficient long distance to accelerate the pre-processing speed.

[0064] In the embodiment of the present invention, the sample extraction mechanism 13 is used to combine with the tip head on the reagent strip to transfer samples or reagents and break the sealing film of each hole position, and the sample pre-processing mechanism 14 is used to combine with the disposable magnetic separation sleeve on the reagent strip to adsorb, mix, clean and transfer magnetic particles.

[0065] In the embodiment of the present invention, the sample pre-processing mechanism 14 and the sample extraction mechanism 13 are located on opposite sides of the gantry 11. This can avoid the problems of crowded space and heavy load on one side of the gantry 11 caused by setting the sample pre-processing mechanism 14 and the sample extraction mechanism 13 on the same side of the gantry 11, resulting in inconvenient operation and unstable structure of the gantry 11. It can also make the sample extraction mechanism 13 and the sample pre-processing mechanism 14 correspond to different functional reagent holes on the reagent strip respectively. For example, one section of the reagent strip requires more participation of the sample extraction mechanism 13 in the operation, while the other section requires more participation of the sample pre-processing mechanism 14 in the operation, which can further improve the pre-processing speed of the multi-channel parallel pre-processing device 10 for the reagent strip.

[0066] In one embodiment, the second driving element 12 can be a lead screw motor. The lead screw motor has high movement accuracy and can adjust the position more accurately and stably. By driving the sample extraction mechanism 13 and the sample pre-processing mechanism 14 to lift on the gantry 11 through the second driving element 12 provided on the top of the gantry 11, the sample extraction mechanism 13 and the sample pre-processing mechanism 14 can approach or move away from the reagent strip smoothly and accurately.

[0067] In this embodiment, the second driving element 12 can drive the first mounting frame 131 to lift, thereby driving the sample extraction mechanism 13 to lift for corresponding processing such as sucking and spitting samples on the reagent strip. The first mounting frame 131 can specifically include a horizontally extending plate and a vertically extending plate. The third driving element 132 can be provided on the above-mentioned horizontally extending plate to ensure a stable setting, thereby providing stable power for the lifting of the extraction assembly 133.

[0068] The extraction component 133 is provided on the vertically extending plate. The third driving element 132 can be a lead screw motor, and its transmission shaft (i.e., the transmission lead screw) passes through the horizontally extending plate and then extends downward to be in transmission connection with the extraction component 133. The transmission connection between the two can be a threaded connection, which can not only ensure the connection stability between the two, but also enable the third driving element 132 to make the extraction component 133 act smoothly and accurately in the vertical direction through the threaded driving method, so as to smoothly and accurately contact the sample and then aspirate and discharge the sample.

[0069] Further, a slider can be provided on one side of the first mounting bracket 131 facing the gantry 11, and a slide rail extending along the height direction of the gantry 11 can be provided on one side of the gantry 11 facing the first mounting bracket 131. The slider is slidably connected to the slide rail, and there are two sets of the slider and the slide rail, which are respectively arranged on both sides of the gantry 11 and the first mounting bracket 131. Through the cooperation of the two sets of the slider and the slide rail, it can be ensured that the second driving element 12 drives the first mounting bracket 131 to lift smoothly on the gantry 11, and further ensure that the sample extraction mechanism 13 lifts smoothly and accurately.

[0070] In this embodiment, the second driving element 12 can drive the second mounting bracket 141 to lift, so as to drive the sample pretreatment mechanism 14 to lift, so as to perform corresponding treatments such as transferring magnetic particles to the reagent strip. The second mounting bracket 141 can specifically include a horizontally extending plate and a vertically extending plate. The fourth driving element 142 can be provided on the above-mentioned horizontally extending plate to ensure stable setting, so as to provide stable power for the lifting of the pretreatment component 143.

[0071] The pretreatment component 143 is provided on the vertically extending plate. The fourth driving element 142 can be a lead screw motor, and its transmission shaft (i.e., the transmission lead screw) passes through the horizontally extending plate and then extends downward to be in transmission connection with the pretreatment component 143. The transmission connection between the two can be a threaded connection, which can not only ensure the connection stability between the two, but also enable the fourth driving element 142 to make the pretreatment component 143 act smoothly and accurately in the vertical direction through the threaded driving method, so as to smoothly and accurately adsorb the magnetic particles in the reagent strip and then transfer them.

[0072] On the other side of the second mounting bracket 141, that is, on the side of the second mounting bracket 141 facing the gantry 11, a slider can also be provided. A slide rail extending along the height direction of the gantry 11 can be provided on the side of the gantry 11 facing the second mounting bracket 141. The slider is slidably connected to the slide rail, and there are two sets of the slider and the slide rail, which are respectively arranged on the left and right sides of the gantry 11 and the second mounting bracket 141. Through the cooperation of the two sets of the slider and the slide rail, it can be ensured that the second driving element 12 drives the second mounting bracket 141 to lift smoothly on the gantry 11, and further ensure that the sample pretreatment mechanism 14 lifts smoothly and accurately.

[0073] Please refer to Figures 4 to 8 , furthermore, the extraction component 133 includes:

[0074] An injection device 1331 is arranged on the first mounting frame 131, wherein a syringe cavity is formed in the injection device 1331, and a first loading head 1332 for loading a tip head is arranged at the bottom of the injection device 1331, and the first loading head 1332 is communicated with the syringe cavity;

[0075] A first push plate 1333 disposed above the injection device 1331, the first push plate 1333 is drivingly connected to the third driving element 132; and

[0076] The piston rod 1334 is arranged on the first push plate 1333 and is movably and sealedly connected to the syringe cavity. The third driving element 132 can drive the first push plate 1333 to drive the piston rod 1334 to rise and fall in the syringe cavity to perform a suction and exhalation action.

[0077] Specifically, the injection devices 1331 are distributed along the width direction of the first mounting frame 131, so that the injection cavities therein can be distributed in the width direction of the extraction assembly 133 to correspond to the location of the reagent strip. The first loading head 1332 and the tip head are interference fit to ensure the stability of the tip head loaded on the first loading head 1332.

[0078] When the second driving element 12 drives the first mounting frame 131 to drive the extraction assembly 133 to descend, the corresponding sealing film on the reagent strip can be broken through the tip head loaded on the first loading head 1332. The first loading head 1332 is connected to the syringe cavity, so that the syringe cavity and the tip head are connected. When the piston rod 1334 is pushed up and down in the syringe cavity, the sample can be sucked and discharged through the connected tip head.

[0079] The transmission shaft of the third driving element 132 extends downward through the top of the first mounting frame 131 and the first push plate 1333. A fixing piece threadedly connected to the transmission shaft can be set on the transmission shaft, and the first push plate 1333 can be fixed on the fixing piece. When the transmission shaft of the third driving element 132 moves, the first push plate 1333 can be driven to rise and fall through the fixing piece to realize the lifting and lowering of the piston rod 1334.

[0080] Alternatively, a screw hole may be directly set on the first push plate 1333, and a thread may be set on the transmission shaft of the third driving element 132. The transmission shaft is threadedly connected to the first push plate 1333 (screw hole). This can ensure the stability of the connection between the two, and the third driving element 132 can also drive the first push plate 1333 to rise and fall by threaded driving.

[0081] In this embodiment, the end of the piston rod 1334 in the syringe cavity can achieve good sealing with the syringe cavity through a sealing ring (such as a rubber ring or a plastic ring, etc.). When the piston rod 1334 is driven upward by the first push plate 1333 and rises in the syringe cavity, a negative pressure is generated in the syringe cavity to cause the tip to aspirate the sample. When the piston rod 1334 is pushed downward by the first push plate 1333 and descends in the syringe cavity, a positive pressure is generated in the syringe cavity to cause the tip to eject the sample.

[0082] Please refer to Figure 8 , further, the sample extraction mechanism 13 further includes:

[0083] A push rod 1335 that is liftably inserted through the injection device 1331, and the top end of the push rod 1335 is spaced from the first push plate 1333;

[0084] An elastic element 1336 sleeved on the push rod 1335 located in the injection device 1331, and the elastic element 1336 expands or contracts simultaneously when the push rod 1335 moves up and down relative to the injection device 1331; and

[0085] A separation plate 1337 provided at the bottom of the injection device 1331, the first loading head 1332 passes through the separation plate 1337, the bottom end of the push rod 1335 is connected to the separation plate 1337, and the push rod 1335 can drive the separation plate 1337 to move up and down relative to the first loading head 1332.

[0086] In the embodiment of the present utility model, a through hole is formed on the separation plate 1337, and the size of the through hole is smaller than the size of the connection between the tip and the first loading head 1332. Therefore, the separation plate 1337 can be used to remove the tip loaded on the first loading head 1332.

[0087] Specifically, since the top end of the push rod 1335 is spaced from the first push plate 1333, when the first push plate 1333 is pushed downward by the third driving element 132 by a certain height until it contacts the top end of the push rod 1335, the first push plate 1333 pushes the push rod 1335 to descend in the injection device 1331, thereby pushing the separation plate 1337 located at the bottom of the injection device 1331 to descend and abut against the tip, so as to push the tip to separate from the first loading head 1332.

[0088] After the separation of the tip is completed, the third driving element 132 stops driving, and the elastic element 1336 will expand to generate an upward thrust on the push rod 1335, driving the separation plate 1337 to reset. The compression of the elastic element 1336 can provide a certain buffering force for the descent of the push rod 1335, preventing the tip from being damaged due to too fast a descent speed of the push rod 1335, or pressing the tip on the reagent strip, resulting in the offset or shaking of the reagent strip.

[0089] In the embodiment of the utility model, there are two push rods 1335 and elastic elements 1336, which are respectively arranged on both sides of the injection device 1331 to ensure that the push rod 1335 pushes the separation plate 1337 smoothly, thereby ensuring the separation effect of the tip head, and ensuring that the elastic element 1336 smoothly resets the separation plate 1337.

[0090] See also Figure 6 and Figure 8 Furthermore, there are multiple syringe cavities, and the multiple syringe cavities are evenly distributed in the injection device 1331 along the length direction of the injection device 1331; there are multiple first loading heads 1332, and the multiple first loading heads 1332 are evenly distributed at the bottom of the injection device 1331 along the length direction of the injection device 1331; there are multiple piston rods 1334, and the multiple piston rods 1334 are evenly distributed on the first push plate 1333 along the length direction of the first push plate 1333.

[0091] That is, the multiple piston rods 1334, the multiple syringe cavities and the multiple first loading heads 1332 correspond one to one, thereby realizing multi-channel parallel processing of multiple reagent strips.

[0092] Exemplarily, the process of the sample extraction mechanism 13 sucking and exhaling the sample is roughly as follows:

[0093] The reaction chamber device 30 drives the reagent strip to move, and at the same time the first driving element 22 drives the gantry 11 and the reaction chamber device 30 to move relative to each other. When the two move relative to each other to corresponding positions, that is, when the multi-channel parallel pre-processing device 10 (sample extraction mechanism 13) and the reaction chamber device 30 move relative to each other to corresponding positions, the second driving element 12 drives the first mounting frame 131 to descend until the first loading head 1332 is fixed by interference fit with the tip head on the reagent strip.

[0094] After the tip head is loaded, the reaction chamber device 30 drives the reagent strip to move and / or the first driving element 22 drives the multi-channel parallel pre-processing device 10 to move, until the tip head moves to above the sample hole, and at the same time, the third driving element 132 first drives the piston rod 1334 to descend a certain height or to the lowest point in the syringe cavity, and then the second driving element 12 drives the first mounting frame 131 to descend a certain height until the tip of the tip head extends into the sample, and the third driving element 132 drives the piston rod 1334 to rise to absorb the sample through the tip head, and then the second driving element 12 drives the first mounting frame 131 to rise to make the tip head separate from the sample liquid surface, and the reaction chamber device 30 drives the reagent strip to move and / or the first driving element 22 drives the multi-channel parallel pre-processing device 10 to move, until the tip head with the sample absorbed moves to directly above the target hole position.

[0095] The second driving element 12 drives the first mounting frame 131 to descend, driving the tip head with the sample to descend until its tip is inserted below the liquid surface of the reagent, and the third driving element 132 drives the piston rod 1334 to descend to inject the sample in the tip head into the reagent. Then the second driving element 12 drives the first mounting frame 131 to rise until the tip head is separated from the reagent, and the third driving element 132 drives the piston rod 1334 to rise to its original position to realize the suction and transfer of the sample, and then the tip head is retracted into the tip head hole.

[0096] The reagent transfer process is the same as the sample transfer process and will not be described in detail here.

[0097] If multiple transfers are required, the tip head can be repeatedly loaded and the suction and injection actions can be repeated. In addition, the sample extraction mechanism 13 can also be used to mix the reagents, and the third driving element 132 is controlled to drive the piston rod 1334 to rise and fall repeatedly in the syringe cavity, so that the tip head repeatedly sucks and discharges under the reagent liquid surface, so that the reagents or samples that need to react can be fully mixed and reacted.

[0098] See also Figure 9 , further, the pre-processing component 143 includes:

[0099] A magnetic rod device 1431 is arranged on the second mounting frame 141, wherein an active through hole is formed in the magnetic rod device 1431, and a second loading head 1432 for loading a disposable magnetic separation sleeve is arranged at the bottom of the magnetic rod device 1431, wherein the second loading head 1432 is connected to the active through hole;

[0100] a second push plate 1433 disposed above the magnetic bar device 1431, the second push plate 1433 being drivingly connected to the fourth driving element 142; and

[0101] A connecting rod 1434 is arranged on the second pushing plate 1433, and a magnetic rod 1435 is arranged on the free end of the connecting rod 1434. The fourth driving element 142 can drive the second pushing plate 1433 to drive the magnetic rod 1435 to rise and fall in the corresponding movable through hole so as to be separated from the second loading head 1432 or pass through the second loading head 1432.

[0102] Specifically, the magnetic rod device 1431 is distributed along the width direction of the second mounting frame 141, so that the active through holes therein can be distributed in the width direction of the pre-processing component 143 to correspond to the location of the reagent strip. When the disposable magnetic separation sleeve needs to be loaded, the second driving element 12 drives the second mounting frame 141 to descend to the second loading head 1432 to contact and load the disposable magnetic separation sleeve, and the two are interference fit, thereby ensuring the stability of the disposable magnetic separation sleeve loaded on the second loading head 1432 and facilitating separation.

[0103] The second loading head 1432 communicates with the movable through-hole, so that the movable through-hole communicates with the disposable magnetic separation sleeve. When the fourth driving element 142 drives the connecting rod 1434 to drive the magnetic rod 1435 to pass through the second loading head 1432 and extend into the disposable magnetic separation sleeve, the magnetic microparticles can be adsorbed through the disposable magnetic separation sleeve. When it is necessary to separate the disposable magnetic separation sleeve, control the fourth driving element 142 to drive the magnetic rod 1435 to descend until it abuts against the bottom end of the disposable magnetic separation sleeve, and the disposable magnetic separation sleeve can be withdrawn from the second loading head 1432. When the fourth driving element 142 drives the connecting rod 1434 to drive the magnetic rod 1435 to be spaced from the second loading head 1432 and separate from the disposable magnetic separation sleeve, the magnetic microparticles can be separated from the disposable magnetic separation sleeve to achieve transfer.

[0104] In addition, on the basis of transferring the magnetic microparticles, the pretreatment assembly 143 can also be used to transfer the magnetic microparticles into a reagent for reaction mixing, or separate the magnetic microparticles in the reaction solution into a cleaning solution, or transfer the magnetic microparticles into a substrate reading for reaction and complete luminescence detection.

[0105] The transmission shaft of the fourth driving element 142 extends downward through the top of the second mounting bracket 141 and the second pushing plate 1433. A fixing member threadedly connected to the transmission shaft can be provided on the transmission shaft, and the second pushing plate 1433 can be fixed to the fixing member. When the transmission shaft of the fourth driving element 142 moves, the second pushing plate 1433 can be driven to move up and down through the fixing member to realize the up and down movement of the magnetic rod 1435.

[0106] Alternatively, a threaded hole can be provided on the second pushing plate 1433, and a thread can be provided on the transmission shaft of the fourth driving element 142. The transmission shaft is threadedly connected to the second pushing plate 1433. In this way, not only the connection stability between the two can be ensured, but also the fourth driving element 142 can drive the second pushing plate 1433 to move up and down by means of threaded driving.

[0107] Please refer to Figure 6 and Figure 9 , further, the magnetic rods 1435 are arranged in multiple rows, and the multiple rows of magnetic rods 1435 are evenly spaced along the width direction of the second pushing plate 1433. The number of rows of the magnetic rods 1435 is equal to the number of substrate reading holes on the reagent strip to achieve multiple item detections, that is, the multi-channel parallel pretreatment device 10 in this embodiment can achieve multiplex detection; each row of magnetic rods 1435 has multiple ones, and the multiple magnetic rods 1435 in each row are evenly spaced along the length direction of the second pushing plate 1433. The number of magnetic rods 1435 in each row is equal to the number of reagent strips, so as to achieve multi-channel parallel processing of multiple reagent strips.

[0108] In the embodiment of the present utility model, the magnetic rod 1435 has three rows, enabling the detection of three items. The space occupied by the three rows of magnetic rods 1435 is not large, and three-item detection can be achieved, enabling multiplex detection while controlling the volume of the medical device 100.

[0109] Of course, in other embodiments, the magnetic rod 1435 can also have two rows, four rows, or even more rows to achieve the detection of different numbers of items.

[0110] Exemplarily, the process of the sample pretreatment mechanism 14 transferring magnetic microparticles is generally as follows:

[0111] After the sample is injected into the corresponding reagent holes of the reagent strip, the reaction chamber device 30 drives the reagent strip to move. At the same time, the first driving element 22 drives the gantry 11 to move relative to the reaction chamber device 30 to the corresponding position, so that the sample pretreatment mechanism 14 is located directly above the disposable magnetic separation sleeve. At this time, the second driving element 12 drives the second mounting bracket 141 to descend a certain height until the disposable magnetic separation sleeve is loaded on the second loading head 1432. Then, the second driving element 12 drives the second mounting bracket 141 to rise, and the disposable magnetic separation sleeve is driven by the second loading head 1432 to rise to a certain height.

[0112] After that, the reaction chamber device 30 and / or the sample pretreatment assembly 143 move until the sample pretreatment assembly 143 loaded with the disposable magnetic separation sleeve moves above the corresponding holes of the reagent strip. The fourth driving element 142 drives the magnetic rod 1435 to descend until the magnetic rod 1435 contacts the bottom of the disposable magnetic separation sleeve. At this time, the second driving element 12 drives the second mounting bracket 141 to descend a certain height, so that the disposable magnetic separation sleeve extends into the liquid containing magnetic microparticles until the disposable magnetic separation sleeve contacts the bottom of the magnetic marker ligand hole, and the magnetic microparticles are gradually adsorbed onto the end of the disposable magnetic separation sleeve. Multiple slow ascents and descents can be performed to fully complete the adsorption of the magnetic microparticles. Among them, the ligand includes but is not limited to hapten, antigen, monoclonal antibody, polyclonal antibody, and nucleic acid ligand.

[0113] After the adsorption of the magnetic microparticles is completed, the second driving element 12 is controlled to drive the second mounting bracket 141 to rise. At this time, all the magnetic microparticles are adsorbed on the outer wall of the disposable magnetic separation sleeve. The reaction chamber device 30 and / or the sample pretreatment assembly 143 are controlled to move until the disposable magnetic separation sleeve is located above the cleaning liquid. The second driving element 12 drives the second mounting bracket 141 to descend until the disposable magnetic separation sleeve extends into the cleaning liquid. Then, the fourth driving element 142 drives the magnetic rod 1435 to rise from the disposable magnetic separation sleeve, causing the magnetic field to disappear, and the magnetic microparticles are separated from the outer wall of the disposable magnetic separation sleeve and fall into the cleaning liquid.

[0114] To accelerate the separation process of magnetic particles, the second driving element 12 can drive the second mounting bracket 141 to repeatedly lift and lower at different frequencies, so that the magnetic particles repeatedly move in the cleaning liquid, thereby ensuring the sufficient mixing and suspension of the magnetic particles and the cleaning liquid. After the magnetic particles are completely detached from the outer wall of the disposable magnetic separation sleeve, the second driving element 12 drives the second mounting bracket 141 to rise to the initial height, completing one operation of separating, cleaning and mixing the magnetic particles. If multiple magnetic separation and cleaning operations are required, the above operations can be repeated.

[0115] Similarly, if it is necessary to transfer the magnetic particles to other holes, as long as the second driving element 12 is controlled to drive the second mounting bracket 141 to descend until the disposable magnetic separation sleeve extends to the bottom of the corresponding liquid level, and then the fourth driving element 142 is controlled to drive the magnetic rod 1435 to descend until it contacts the bottom end of the disposable magnetic separation sleeve, so that all the magnetic particles are adsorbed on the outer wall of the disposable magnetic separation sleeve, and the second driving element 12 is controlled to drive the second mounting bracket 141 to rise.

[0116] After that, the sample pretreatment mechanism 14 and / or the reaction chamber device 30 are controlled to move until the disposable magnetic separation sleeve adsorbed with magnetic particles moves to directly above the target hole, and then the second driving element 12 is controlled to drive the second mounting bracket 141 to descend until the disposable magnetic separation sleeve extends into the target liquid. At this time, the fourth driving element 142 is controlled to drive the magnetic rod 1435 to rise to disappear the magnetic field, and the magnetic particles can be gradually separated into the target liquid. By controlling the second driving element 12 to repeatedly drive the second mounting bracket 141 to lift and lower, the disposable magnetic separation sleeve can repeatedly move in the target liquid to accelerate the separation of the magnetic particles.

[0117] Please refer to Figure 4 、 Figure 5 and Figure 7 Furthermore, there is an activity space 111 on the gantry 11. The transmission shaft of the second driving element 12 passes through the activity space 111. A transmission plate 112 is sleeved on the transmission shaft. There is a thread on the transmission shaft, and a threaded hole is provided on the transmission plate 112. Therefore, when the transmission shaft moves, the transmission plate 112 can be synchronously lifted and lowered in the activity space 111 by means of screw transmission.

[0118] On one side of the first mounting bracket 131 facing the gantry 11, there is a first connecting portion, which is formed by the vertical extension plate of the first mounting bracket 131 extending towards the gantry 11. On one side of the second mounting bracket 141 facing the gantry 11, there is a second connecting portion, and the second extension portion is formed by the vertical extension plate of the second mounting bracket 141 extending towards the gantry 11. Both the first connecting portion and the second connecting portion are connected to the transmission plate 112 through fasteners (such as screws). Therefore, when the transmission plate 112 rises and falls with the transmission shaft of the second driving element 12, it can drive the first mounting bracket 131 and the second mounting bracket 141 to rise and fall, that is, realize the lifting of the sample extraction mechanism 13 and the sample pretreatment mechanism 14 on the gantry 11.

[0119] Please refer to Figures 1 to 3 , further, a driving pulley 23 is provided on the transmission shaft of the first driving element 22. There is a mounting seat 24 at the front end of the medical device 100, and a driven pulley 25 is provided on the mounting seat 24. The driving pulley 23 is in transmission connection with the driven pulley 25 through a belt. A synchronous belt pressing plate connected to the belt is provided at the bottom of the gantry 11.

[0120] Specifically, the first driving element 22 is located at the rear end of the mounting frame 20, while the first mounting seat 24 is located at the front end of the mounting frame 20, so that the connection between the two can cover the length direction of the mounting frame 20, so that the moving distance of the multi-channel parallel pretreatment device 10 in the mounting frame 20 can be long enough to better cooperate with the movement of the reaction chamber device 30.

[0121] The transmission structure composed of the driving pulley 23, the belt, the synchronous belt pressing plate and the driven pulley 25 has high transmission efficiency, simple structure and sufficient power. Combined with the setting of the guide rail 21, it can ensure that the multi-channel parallel pretreatment device 10 moves stably and quickly in the mounting frame 20, and speeds up the moving speed of the multi-channel parallel pretreatment device 10.

[0122] In the embodiment of the present invention, there are two sets of the first driving element 22 and the above belt transmission structure, which are respectively arranged on the left and right sides of the mounting frame 20 to ensure the stable driving of the gantry 11.

[0123] Further, the first driving element 22 is a lead screw motor, and the transmission shaft of the first driving element 22 is in transmission connection with the gantry 11.

[0124] Specifically, the lead screw motor has high movement accuracy, and the position adjustment is more accurate and stable. The transmission connection between the first driving element 22 and the gantry 11 can be a threaded connection. For example, a thread is provided on the transmission lead screw of the first driving element 22, and a threaded hole is provided at the bottom end of the gantry 11. Inserting the transmission lead screw into the threaded hole can realize the threaded connection between the first driving element 22 and the gantry 11. The threaded connection has better stability and is easy to disassemble and assemble.

[0125] Certainly, in other embodiments, the transmission connection manner between the first driving element 22 and the gantry 11 may also be other, not limited to the above-mentioned threaded connection, and can be specifically set according to specific requirements.

[0126] Please refer to Figures 1 to 5 , the medical device 100 of the embodiment of the present utility model includes:

[0127] An installation frame 20, on which a guide rail 21 and a first driving element 22 are provided;

[0128] A reaction chamber device 30 provided on the installation frame 20, the reaction chamber device 30 can reciprocate along the length direction of the installation frame 20, and the reaction chamber device 30 is used for loading reagent strips;

[0129] A PMT device 40 provided at the rear end of the installation frame 20 and above the reaction chamber device 30, the reaction chamber device 30 is used to move the reagent strip to the PMT device 40, and the PMT device 40 is used to detect the light emission value of the detection position of the reagent strip; and

[0130] The multi-channel parallel pre-treatment device 10 according to any one of the above, the multi-channel parallel pre-treatment device 10 is movably arranged with the guide rail 21 and is in transmission connection with the first driving element 22, and the multi-channel parallel pre-treatment device 10 can reciprocate along the guide rail 21 under the drive of the first driving element 22.

[0131] In the medical device 100 of the embodiment of the present utility model, the multi-channel parallel pre-treatment device 10 can move in the medical device 100 and can move relative to the reaction chamber device 30 in the medical device 100, which can accelerate the speed of moving the reagent strip to the multi-channel parallel pre-treatment device 10, thereby accelerating the pre-treatment speed of the multi-channel parallel pre-treatment device 10 for the reagent strip, so as to achieve the purpose of improving the analysis efficiency of the medical device 100.

[0132] Moreover, by separately arranging the sample extraction mechanism 13 for sucking and spitting samples and the sample pre-treatment mechanism 14 for transferring magnetic particles, the reaction chamber device 30 does not need to drive the reagent strip to move a long distance, and can respectively correspond to the sample extraction mechanism 13 and the sample pre-treatment mechanism 14 to realize the corresponding treatment of different parts. The second driving element 12 can respectively drive the sample extraction mechanism 13 and the sample pre-treatment mechanism 14 to lift, the third driving element 132 can drive the extraction assembly 133 to lift, the fourth driving element 142 can drive the pre-treatment assembly 143 to lift, and combined with the horizontal reciprocating drive of the first driving element 22 for the sample extraction mechanism 13 and the sample pre-treatment mechanism 14, the movement range of the multi-channel parallel pre-treatment device 10 is greatly improved, the comprehensive pre-treatment of the reagent strip is realized, and the pre-treatment efficiency is improved.

[0133] In an embodiment, the reaction chamber device 30 may be disposed on the bottom plate of the mounting frame 20. Driving elements such as a motor may be provided on the bottom plate, and a guide rail 21 extending along the length direction of the mounting frame 20 may be provided. A sliding seat corresponding to the guide rail 21 may be provided at the bottom of the reaction chamber device 30. Through the cooperation of the sliding seat and the guide rail 21, the reaction chamber device 30 can be slidably disposed on the mounting frame 20 to achieve reciprocating movement, and then the reagent strip can be moved to a corresponding position for corresponding detection and analysis.

[0134] Since the reaction chamber device 30 is disposed on the bottom plate of the mounting frame 20, therefore, the PMT device 40 can be disposed above the bottom plate through a structure such as a bracket, that is, the PMT device 40 is located relatively above the reaction chamber device 30. To ensure that the PMT device 40 can perform luminescence value detection on all the reagent strips in the reaction chamber device 30, the PMT device 40 can move up, down, left, and right on the bracket, that is, it can move along the vertical direction and the horizontal direction (the width direction of the mounting frame 20), so as to approach and move away from the reagent strip and move back and forth between multiple reagent strips to switch, and achieve corresponding detection.

[0135] In the description of this specification, the descriptions referring to terms such as "Embodiment 1" and "Embodiment 2" mean that the specific features, structures, materials, or characteristics described in connection with the implementation manners or examples are included in at least one implementation manner or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same implementation manner or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more implementation manners or examples.

[0136] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-channel parallel pre-processing device for medical equipment, characterized in that: include: A gantry, wherein the medical device is provided with a guide rail and a first driving element, the gantry and the guide rail are movably arranged, the first driving element is transmission-connected with the gantry, and a second driving element is provided on the top of the gantry; A sample extraction mechanism is arranged on the gantry, the sample extraction mechanism comprises a first mounting frame arranged on the gantry and drivingly connected to the second driving element, a third driving element arranged on the first mounting frame, and an extraction component arranged on the first mounting frame and drivingly connected to the third driving element, the second driving element can drive the first mounting frame to rise and fall in a vertical direction, and the third driving element can drive the extraction component to move in a vertical direction to suck and discharge samples; as well as A sample pre-processing mechanism is arranged on the gantry, and the sample pre-processing component includes a second mounting frame arranged on the gantry and connected to the first driving element, a fourth driving element arranged on the second mounting frame, and a pre-processing component arranged on the second mounting frame and connected to the fourth driving element, the second driving element can drive the second mounting frame to rise and fall in the vertical direction, and the fourth driving element can drive the pre-processing component to move in the vertical direction to transfer magnetic particles.

2. The multi-channel parallel pre-processing device according to claim 1, characterized in that: The extraction component comprises: An injection device is arranged on the first mounting frame, wherein a syringe cavity is formed in the injection device, a first loading head for loading a tip head is arranged at the bottom of the injection device, and the first loading head is communicated with the syringe cavity; a first push plate disposed above the injection device, the first push plate being drivingly connected to the third driving element; and The piston rod is arranged on the first push plate, and the piston rod is movably and sealedly connected to the syringe cavity. The third driving element can drive the first push plate to drive the piston rod to rise and fall in the syringe cavity to perform a suction and exhalation action.

3. The multi-channel parallel pre-processing device according to claim 2, characterized in that: The sample extraction mechanism also includes: A push rod that can be lifted and lowered and passes through the injection device, wherein the top end of the push rod is spaced apart from the first push plate; an elastic element sleeved on the push rod in the injection device, wherein the elastic element is stretched or compressed simultaneously when the push rod is lifted or lowered relative to the injection device; and A separation plate is arranged at the bottom of the injection device, the first loading head passes through the separation plate, the bottom end of the push rod is connected to the separation plate, and the push rod can drive the separation plate to rise and fall relative to the first loading head.

4. The multi-channel parallel pre-processing device according to claim 2, characterized in that: There are a plurality of syringe cavities, and the plurality of syringe cavities are evenly distributed in the injection device along the length direction of the injection device; There are a plurality of first loading heads, and the plurality of first loading heads are evenly distributed at intervals along the length direction of the injection device at the bottom of the injection device; There are multiple piston rods, and the multiple piston rods are evenly distributed on the first push plate along the length direction of the first push plate.

5. The multi-channel parallel pre-processing device according to claim 1, characterized in that: The pre-processing component comprises: A magnetic bar device is arranged on the second mounting frame, wherein an active through hole is formed in the magnetic bar device, and a second loading head for loading a disposable magnetic separation sleeve is arranged at the bottom of the magnetic bar device, and the second loading head is communicated with the active through hole; a second push plate disposed above the magnetic bar device, the second push plate being drivingly connected to the fourth driving element; and A connecting rod is arranged on the second pushing plate, and a magnetic bar is arranged on the free end of the connecting rod. The fourth driving element can drive the second pushing plate to drive the magnetic bar to rise and fall in the corresponding movable through hole so as to be separated from the second loading head or pass through the second loading head.

6. The multi-channel parallel pre-processing device according to claim 5, characterized in that: The magnetic bars are arranged in multiple rows, and the magnetic bars in the multiple rows are evenly distributed along the width direction of the second push plate; There are multiple magnetic bars in each row, and the multiple magnetic bars in each row are evenly spaced and distributed along the length direction of the second pushing plate.

7. The multi-channel parallel pre-processing device according to claim 1, characterized in that: The sample extraction mechanism is opposite to the sample pre-processing mechanism, and the sample extraction mechanism is located in front of the sample pre-processing mechanism, and the second driving element, the third driving element and the fourth driving element are linearly arranged on the top of the gantry.

8. The multi-channel parallel pre-processing device according to claim 1, characterized in that: The gantry is provided with an activity space, the transmission shaft of the second driving element passes through the activity space, a transmission plate is sleeved on the transmission shaft, and the transmission plate can be raised and lowered in the activity space when the transmission shaft moves; A first connection portion is provided on a side of the first mounting frame facing the gantry, and a second connection portion is provided on a side of the second mounting frame facing the gantry. Both the first connection portion and the second connection portion are connected to the transmission plate.

9. The multi-channel parallel pre-processing device according to claim 1, characterized in that: A driving pulley is provided on the transmission shaft of the first driving element, a mounting seat is provided at the front end of the medical device, a driven pulley is provided on the mounting seat, the driving pulley is connected to the driven pulley through a belt, and a synchronous belt pressure plate connected to the belt is provided at the bottom of the gantry.

10. The multi-channel parallel pre-processing device according to claim 1, characterized in that: The first driving element is a screw motor, and a transmission shaft of the first driving element is drivingly connected to the gantry.

11. A medical device, characterized in that: include: A mounting frame, wherein a guide rail and a first driving element are provided on the mounting frame; A reaction chamber device disposed on the mounting frame, the reaction chamber device being reciprocatable along the length direction of the mounting frame, the reaction chamber device being used to load a reagent strip; A PMT device disposed at the rear end of the mounting frame and located above the reaction chamber device, the reaction chamber device is used to move the reagent strip to the PMT device, and the PMT device is used to detect the luminescence value of the detection position of the reagent strip; as well as According to the multi-channel parallel pre-processing device according to any one of claims 1 to 10, the multi-channel parallel pre-processing device is movably arranged on the guide rail and is transmission-connected to the first driving element, and the multi-channel parallel pre-processing device can reciprocate along the guide rail under the drive of the first driving element.

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