Reagent strip assembly

Abstract

The utility model relates to the technical field of medical instruments, in particular to a reagent strip assembly which comprises a first mounting frame with a reagent strip mounting position and a reagent strip, and the reagent strip is detachably arranged in the reagent strip mounting position. A mounting accommodating position, a first reagent accommodating groove and at least two second reagent accommodating grooves are formed in the reagent strip at intervals; the capacity of the first reagent accommodating groove is different from that of the second reagent accommodating groove; the first reagent containing groove and the second reagent containing groove can both contain a second magnetic part and a reagent, and the second magnetic part can move in the first reagent containing groove and / or the second reagent containing groove under the driving of the first magnetic part so as to stir the reagent in the first reagent containing groove and / or the second reagent containing groove; the first reagent containing groove and the second reagent containing groove with different containing capacities are formed in the reagent strip, so that the reagent strip is compatible with detection samples with different volumes, the flexibility of the detection samples with small volumes is improved, and the detection cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a reagent strip assembly. Background Art

[0002] With the rapid development of the medical field, more and more biological experiments based on nucleic acids have emerged. Currently, the existing nucleic acid extraction instruments are equipped with traditional 96 or 24 deep-well plates and magnetic sleeves and other consumables for nucleic acid extraction. However, for small and large volume nucleic acid extraction, different reagent strips and corresponding equipment consumables are required, resulting in poor universality of reagent strips, waste of consumables, and increased costs.

[0003] Based on the shortcomings of the prior art, there is an urgent need to develop a reagent strip assembly to solve the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a reagent strip assembly. The utility model can improve the flexibility of testing small-volume samples by arranging a first reagent holding slot and a second reagent holding slot with different holding capacities on the reagent strip, avoid wasting testing reagents when the test sample volume is too small, and thus reduce the testing cost.

[0005] The utility model provides a reagent strip assembly, comprising a first mounting frame and a reagent strip, wherein the first mounting frame has a reagent strip mounting position, and the reagent strip is detachably arranged in the reagent strip mounting position;

[0006] The reagent strip is provided with an installation position for accommodating a first magnetic member, a first reagent holding slot, and at least two second reagent holding slots at intervals; the capacity of the first reagent holding slot is different from the capacity of the second reagent holding slot; the first reagent holding slot and the second reagent holding slot can both accommodate a second magnetic member and a reagent, and the second magnetic member, driven by the first magnetic member, can move in the first reagent holding slot and / or the second reagent holding slot to stir the reagent in the first reagent holding slot and / or the second reagent holding slot.

[0007] Furthermore, at least two reagent strips are included; a first clamping structure and a second clamping structure are disposed oppositely on two sides of the reagent strip, and the first clamping structure of the reagent strip is clamped and fixed to the second clamping structure of the adjacent reagent strip.

[0008] Furthermore, the reagent strip is also provided with a pipette tip accommodating position, and the pipette tip accommodating position is used to accommodate the pipette tip;

[0009] The installation accommodation position, the at least two second reagent accommodation slots, the first reagent accommodation slot and the pipette tip accommodation position are arranged on the reagent strip at intervals.

[0010] Furthermore, the middle portion of the first mounting frame has a mounting position for the reagent strip;

[0011] The first mounting frame is provided with a clamping spring, the reagent strip is provided with a third clamping structure matching the clamping spring, and the reagent strip is clamped and fixed to the first mounting frame through the third clamping structure and the clamping spring to be fixed at the reagent strip mounting position.

[0012] Furthermore, it also includes at least one heating element and a micro switch, and the at least one heating element and the micro switch are both arranged on the first mounting frame. The at least one heating element is used to heat the reagent in the first reagent holding tank and / or the second reagent holding tank, and the micro switch is used to identify the position information of the reagent strip and fix the reagent strip.

[0013] Further, the arrangement direction of the heating element is consistent with the arrangement direction of at least two of the reagent strips.

[0014] Furthermore, it also includes a reagent driving component, which is arranged at the bottom of the first mounting frame and is used to drive the first mounting frame to move back and forth to mix the reagents in the first reagent containing tank.

[0015] Furthermore, the reagent drive assembly includes a first linear guide and a first linear motor, the first mounting frame is arranged on the first linear guide, and the first linear motor is drivingly connected to the first linear guide so that the first linear motor can drive the first mounting frame to move along the arrangement direction of the first linear guide.

[0016] Furthermore, the arrangement direction of the first linear guide rail is consistent with the length direction of the reagent strip.

[0017] Furthermore, the reagent drive assembly also includes a slider fixing plate, a slider and a roller;

[0018] The two sides of the slider fixing plate are respectively fixedly connected to the roller and the first mounting frame, the slider is arranged on the slider fixing plate, and the slider can be slidably connected to the first linear guide rail to drive the first mounting frame to move along the arrangement direction of the first linear guide rail.

[0019] Implementing the embodiments of the utility model has the following beneficial effects:

[0020] The utility model arranges a first reagent holding slot and a second reagent holding slot of different holding capacities on a reagent strip, thereby realizing selection of a suitable holding slot according to the volume of a test sample, achieving compatibility with test samples of different volumes, improving flexibility for test samples of small volumes, avoiding waste of test reagents when the test sample volume is too small, and thus reducing the test cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the utility model, the following is a brief introduction to the drawings required for use in the embodiments or prior art descriptions. Obviously, the drawings described below are only some embodiments of the utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 is a structural diagram of the reagent strip assembly described in this embodiment;

[0023] Figure 2 is a structural diagram of multiple groups of the reagent strips in this embodiment;

[0024] Figure 3 This is a structural diagram of a single reagent strip in this embodiment.

[0025] Among them, the reference numerals in the figure correspond to:

[0026] 11-reagent strip; 12-first mounting bracket; 13-heating element; 14-micro switch; 15-slider fixing plate; 16-roller; 17-slider; 21-first magnetic element; 111-installation accommodating position; 112-second reagent accommodating slot; 113-first reagent accommodating slot; 114-pipette tip accommodating position; 115-first clamping structure; 116-second clamping structure; 117-third clamping structure; 121-circlip. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0029] In view of the defects of the prior art, the utility model provides a first reagent holding slot and a second reagent holding slot with different holding capacities on the reagent strip, thereby realizing selection of a suitable holding slot according to the volume of the test sample, achieving compatibility with test samples of different volumes, improving flexibility for test samples of small volumes, avoiding waste of test reagents when the test sample volume is too small, and thus reducing the test cost.

[0030] See attached Figure 1-3 The present embodiment provides a reagent strip assembly, including a first mounting frame 12 and a reagent strip 11, wherein the first mounting frame 12 has a reagent strip mounting position, and the reagent strip 11 is detachably arranged in the reagent strip mounting position; the reagent strip 11 is provided with a mounting position 111 for accommodating a first magnetic member 21, a first reagent holding slot 113, and at least two second reagent holding slots 112 at intervals; the capacity of the first reagent holding slot 113 is different from that of the second reagent holding slot 112; the first reagent holding slot 113 and the second reagent holding slot 112 can both accommodate the second magnetic member and the reagent, and the second magnetic member can move in the first reagent holding slot 113 and / or the second reagent holding slot 112 under the drive of the first magnetic member 21 to stir the reagent in the first reagent holding slot 113 and / or the second reagent holding slot 112.

[0031] It should be noted that: in this embodiment, by providing a first reagent holding slot 113 and a second reagent holding slot 112 with different holding capacities on the reagent strip 11, it is possible to select a suitable holding slot according to the volume of the test sample, achieve compatibility with test samples of different volumes, improve flexibility for small-volume test samples, avoid wasting test reagents when the test sample volume is too small, and thus reduce the test cost.

[0032] It should also be noted that the reagent strip 11 of this embodiment is compatible with 0.05-10 mL of sample solution, thus achieving flexible sample detection.

[0033] Preferably, the volume of the sample liquid that the reagent strip 11 can be compatible with may be 0.05-0.1 mL, 0.05-0.2 mL, 0.1-0.5 mL, 0.5-1 mL, 1-5 mL, 2-6 mL, 3-8 mL, 8-10 mL, etc.

[0034] Specifically, the capacity of the first reagent holding tank 113 is greater than that of the second reagent holding tank 113 . The first reagent holding tank 113 is used to hold a large-volume test sample, and the second reagent holding tank 113 is used to hold a small-volume test sample.

[0035] In this embodiment, the number of the second reagent containing tanks 112 is not limited and can be set according to actual conditions.

[0036] Preferably, five second reagent containing grooves 112 are arranged at intervals on the reagent strip 11 , and the mounting accommodating position 111 , the five second reagent containing grooves 112 , the first reagent containing groove 113 and the shifter tip accommodating position 114 are arranged along the length direction of the reagent strip 11 .

[0037] Specifically, a third reagent containing tank is further included, and the third reagent containing tank and the first reagent containing tank 113 are respectively arranged on both sides of the shifter pipette tip containing position 114 .

[0038] Specifically, each reagent containing groove in the reagent strip 11 can contain a reagent and a second magnetic member, thereby achieving mixing and transfer of the reagent in the reagent containing groove by the second magnetic member.

[0039] Furthermore, the reagent containing tank in the reagent strip 11 contains a lysing solution, a washing solution, an eluent, a second magnetic member, and the like.

[0040] In this embodiment, the first magnetic member 5 is disposed in the installation accommodation position 111 to achieve automatic loading without manual loading, thereby improving work efficiency.

[0041] Specifically, the second magnetic member and the first magnetic member 5 cooperate with each other, so that the first magnetic member 5 can drive the second magnetic member to stir the reagent in the reagent strip 11 .

[0042] In this possible embodiment, there is no structural limitation on the second magnetic member and the first magnetic member 5 , as long as the first magnetic member 5 can drive the second magnetic member to stir the reagent in the reagent strip 11 .

[0043] Preferably, the second magnetic member is a magnetic bead, and the first magnetic member 5 is a magnetic sleeve.

[0044] Preferably, the second magnetic member is a columnar structure contained in the reagent, and the second magnetic member can be engaged with the first magnetic member 5 to drive the second magnetic member to stir the reagent in the reagent strip 11 .

[0045] In some possible embodiments, at least two reagent strips 11 are included; a first clamping structure 115 and a second clamping structure 116 are disposed on opposite sides of the reagent strip 11, and the first clamping structure 115 of the reagent strip 11 is clamped and fixed to the second clamping structure 116 of the adjacent reagent strip 11. By disposing the first clamping structure 115 and the second clamping structure 116, adjacent reagent strips 11 can be clamped and fixed, thereby realizing assembly of multiple reagent strips 11, thereby improving the detection rate.

[0046] In this embodiment, the number of reagent strips 11 included in the reagent strip assembly 1 is set according to the reagent conditions and is not specifically limited herein.

[0047] Preferably, the reagent strip assembly 1 includes nine reagent strips 11, and adjacent reagent strips 11 are mutually snap-connected and fixed to form an integral structure.

[0048] In this embodiment, the sample solution is a sample solution of nucleic acid to be detected, and each reagent strip 11 pre-packages therein a lysis solution, a washing solution, an eluent, a second magnetic component and a first magnetic component 5 etc. required for nucleic acid extraction.

[0049] In some possible embodiments, a pipette tip accommodating position 114 is further provided on the reagent strip 11, and the pipette tip accommodating position 114 is used to accommodate a pipette tip; the accommodating position 111, at least two second reagent accommodating slots 112, the first reagent accommodating slot 113 and the pipette tip accommodating position 114 are installed and arranged at intervals on the reagent strip 11.

[0050] In this embodiment, the shape and size of the reagent strip 11 are not limited, as long as the installation receiving position 111, at least two second reagent receiving slots 112, the first reagent receiving slot 113 and the shifter tip receiving position 114 are arranged at intervals.

[0051] Preferably, the reagent strip 11 is a long strip structure, and the mounting accommodation position 111 , at least two second reagent accommodation slots 112 , the first reagent accommodation slot 113 and the shifter tip accommodation position 114 are arranged along the length direction of the reagent strip 11 .

[0052] Preferably, the first reagent containing groove 113 is an elongated hole, the length direction of the first reagent containing groove 113 is the same as the length direction of the reagent strip 11 , and the depth direction of the first reagent containing groove 113 is consistent with the height direction of the reagent strip 111 .

[0053] Preferably, the second reagent containing groove 111 is a circular hole, and the depth direction of the second reagent containing groove 111 is consistent with the height direction of the reagent strip 111 .

[0054] In some possible embodiments, the middle portion of the first mounting frame 12 has a reagent strip mounting position; a retaining spring 121 is provided on the first mounting frame 12, and a third clamping structure 117 matching the retaining spring 121 is provided on the reagent strip 11. The reagent strip 11 is clamped and fixed to the first mounting frame 12 by the third clamping structure 117 and the retaining spring 121 to be fixed in the reagent strip mounting position. By providing the third clamping structure 117 and the retaining spring 121, the reagent strip 11 can be fixed on the first mounting frame 12, thereby achieving rapid installation and removal of the reagent strip 11 and improving the installation and removal rate.

[0055] Specifically, the reagent strip 11 includes at least one first clamping structure 115 and at least one second clamping structure 116 . The first clamping structure 115 and the second clamping structure 116 are arranged opposite to each other so as to be clamped and fixed with the adjacent reagent strip 11 .

[0056] Preferably, the first side of the reagent strip 11 includes two first snap-fit ​​structures 115 disposed at intervals, and the second side of the reagent strip 11 includes two second snap-fit ​​structures 116 disposed at intervals.

[0057] In this embodiment, the specific structures of the first clamping structure 115 , the second clamping structure 116 , the third clamping structure 117 and the clamping spring 121 are not limited, as long as they can be clamped and fixed with the corresponding clamping structures.

[0058] Preferably, the retaining spring 121 is a retaining spring.

[0059] Preferably, one of the first clamping structure 115 and the second clamping structure 116 is a clamping groove, and the other is a clamping protrusion matched therewith.

[0060] In some possible embodiments, at least one heating element 13 and a micro switch 14 are further included. Both the at least one heating element 13 and the micro switch 14 are arranged on the first mounting frame 12. At least one heating element 13 is used to heat the reagent in the first reagent holding tank 113 and / or the second reagent holding tank 112. The micro switch 14 is used to identify the position information of the reagent strip 11 and fix the reagent strip 11. By setting the heating element 13, the liquid in the reagent holding tank can be heated to accelerate the reaction rate.

[0061] In some possible embodiments, the arrangement direction of the heating element 13 is consistent with the arrangement direction of at least two reagent strips 11 , so that the heating element 13 can heat each reagent strip 11 .

[0062] Specifically, a plurality of heating elements 13 are included, and the number of the heating elements 13 is not limited, as long as the heating elements 13 can heat the positions to be heated of the reagent strip 11 .

[0063] Preferably, three heating elements 13 are included, and the heating elements 13 are arranged at intervals at the bottom of at least two reagent strips 11 , so as to heat the three containing grooves of the reagent strip 11 .

[0064] Specifically, the reagent strip assembly includes at least two reagent strips 11, the arrangement direction of the at least two reagent strips 11 is defined as a first direction, the heating element 13 is set at the bottom of the reagent strip 11, and the heating element 13 is arranged along the first direction to achieve heating of the same position to be heated of the at least two reagent strips 11.

[0065] In some possible embodiments, a reagent driving assembly is further included. The reagent driving assembly is disposed at the bottom of the first mounting frame 12 and is used to drive the first mounting frame 12 to move back and forth to mix the reagents in the first reagent holding tank 113 .

[0066] In this embodiment, the specific structure of the reagent driving assembly is not limited, as long as the reagent driving assembly can drive the first mounting frame 12 to reciprocate.

[0067] Preferably, the reagent drive assembly includes a first linear guide and a first linear motor, the first mounting frame 12 is arranged on the linear guide, and the first linear motor is drivingly connected to the first linear guide so that the first linear motor can drive the first mounting frame 12 to move along the arrangement direction of the first linear guide.

[0068] Furthermore, the first linear guide rail is arranged along the length direction of the first reagent containing tank 113 , so that the first linear motor can fully mix the reagent in the first reagent containing tank 113 when driving the first mounting frame 12 to move.

[0069] Furthermore, the arrangement direction of the reagent strips 11 is consistent with the arrangement direction of the first linear guide rail.

[0070] Furthermore, the arrangement direction of at least two reagent strips 11 is perpendicular to the arrangement direction of the reagent strips 11 .

[0071] In some possible embodiments, the reagent drive assembly includes a first linear guide and a first linear motor, the first mounting frame 12 is disposed on the first linear guide, and the first linear motor is drive-connected to the first linear guide so that the first linear motor can drive the first mounting frame 12 to move along the arrangement direction of the first linear guide.

[0072] In some possible embodiments, the arrangement direction of the first linear guide is consistent with the length direction of the reagent strip 11, so that when the reagent strip 11 reciprocates along the first linear guide, the reagents in the reagent strip 11 can be mixed.

[0073] In some possible embodiments, the reagent drive assembly also includes a slider fixing plate 15, a slider 17 and a roller 16; the two sides of the slider fixing plate 15 are respectively fixedly connected to the roller 16 and the first mounting frame 12, and the slider 17 is arranged on the slider fixing plate 15. The slider 17 can be slidably connected to the first linear guide rail to drive the first mounting frame 12 to move along the arrangement direction of the first linear guide rail.

[0074] Specifically, the number of the slider fixing plates 15 , the sliders 17 and the rollers 16 are consistent.

[0075] Preferably, the reagent driving assembly includes two slider fixing plates 15 , two sliders 17 and two rollers 16 . The two slider fixing plates 15 are spaced apart at the bottom of the first mounting frame 12 , and each slider fixing plate 15 is provided with a slider 17 and a roller 16 .

[0076] Furthermore, the roller 16 is protruding from the slider fixing plate, so that when the roller 16 moves along the direction of the first linear guide rail, it can abut against the window of the detection instrument, so that the window of the detection instrument can be opened by the roller 16.

[0077] Embodiment 1

[0078] See attached Figure 1-3 The present embodiment provides a reagent strip assembly, including a first mounting frame 12 and a reagent strip 11, wherein the first mounting frame 12 has a reagent strip mounting position, and the reagent strip 11 is detachably arranged in the reagent strip mounting position; the reagent strip 11 is provided with a mounting position 111 for accommodating a first magnetic member 21, a first reagent holding slot 113, and at least two second reagent holding slots 112 at intervals; the capacity of the first reagent holding slot 113 is different from that of the second reagent holding slot 112; the first reagent holding slot 113 and the second reagent holding slot 112 can both accommodate the second magnetic member and the reagent, and the second magnetic member can move in the first reagent holding slot 113 and / or the second reagent holding slot 112 under the drive of the first magnetic member 21 to stir the reagent in the first reagent holding slot 113 and / or the second reagent holding slot 112.

[0079] Preferably, the reagent strip assembly 1 includes nine reagent strips 11, and adjacent reagent strips 11 are mutually snap-connected and fixed to form an integral structure.

[0080] In this embodiment, a first clamping structure 115 and a second clamping structure 116 are disposed oppositely on two sides of the reagent strip 11 , and the first clamping structure 115 of the reagent strip 11 is clamped and fixed to the second clamping structure 116 of the adjacent reagent strip 11 .

[0081] Preferably, the first side of the reagent strip 11 includes two first snap-fit ​​structures 115 disposed at intervals, and the second side of the reagent strip 11 includes two second snap-fit ​​structures 116 disposed at intervals.

[0082] Preferably, the retaining spring 121 is a retaining spring.

[0083] Preferably, one of the first clamping structure 115 and the second clamping structure 116 is a clamping groove, and the other is a clamping protrusion matched therewith.

[0084] In this embodiment, the sample liquid is a sample liquid of nucleic acid to be detected, and each reagent strip 11 pre-packages therein the lysate, washing solution, elution solution, second magnetic component and consumable first magnetic component 5 required for nucleic acid extraction.

[0085] Preferably, the reagent strip 11 is a long strip structure, and the mounting accommodation position 111 , at least two second reagent accommodation slots 112 , the first reagent accommodation slot 113 and the shifter tip accommodation position 114 are arranged along the length direction of the reagent strip 11 .

[0086] Preferably, the first reagent containing groove 113 is an elongated hole, the length direction of the first reagent containing groove 113 is the same as the length direction of the reagent strip 11 , and the depth direction of the first reagent containing groove 113 is consistent with the height direction of the reagent strip 111 .

[0087] Preferably, the second reagent containing groove 111 is a circular hole, and the depth direction of the second reagent containing groove 111 is consistent with the height direction of the reagent strip 111 .

[0088] Preferably, the second magnetic member is a magnetic bead, and the first magnetic member 5 is a magnetic sleeve.

[0089] The reagent strip 11 of this embodiment is compatible with 0.05-10 mL of sample liquid, thus achieving flexible sample detection.

[0090] Specifically, the capacity of the first reagent holding tank 113 is greater than that of the second reagent holding tank 113 . The first reagent holding tank 113 is used to hold a large-volume test sample, and the second reagent holding tank 113 is used to hold a small-volume test sample.

[0091] Preferably, five second reagent containing grooves 112 are arranged at intervals on the reagent strip 11 , and the mounting position 111 , the five second reagent containing grooves 112 , the first reagent containing groove 113 , the shifter tip containing position 114 and the third reagent containing groove are arranged along the length direction of the reagent strip 11 .

[0092] In this embodiment, the first magnetic member 5 is disposed in the installation accommodation position 111 to achieve automatic loading without manual loading, thereby improving work efficiency.

[0093] In this embodiment, a reagent strip mounting position is provided in the middle of the first mounting frame 12; a retaining spring 121 is provided on the first mounting frame 12, and a third clamping structure 117 matching the retaining spring 121 is provided on the reagent strip 11. The reagent strip 11 is clamped and fixed to the first mounting frame 12 through the third clamping structure 117 and the retaining spring 121 to be fixed in the reagent strip mounting position.

[0094] In this embodiment, a pipette tip accommodating position 114 is also provided on the reagent strip 11, and the pipette tip accommodating position 114 is used to accommodate a pipette tip; the accommodating position 111, at least two second reagent accommodating grooves 112, the first reagent accommodating groove 113 and the pipette tip accommodating position 114 are installed and arranged at intervals on the reagent strip 11.

[0095] In this embodiment, the shape and size of the reagent strip 11 are not limited, as long as the installation receiving position 111, at least two second reagent receiving slots 112, the first reagent receiving slot 113 and the shifter tip receiving position 114 are arranged at intervals.

[0096] Specifically, the reagent strip 11 includes at least one first clamping structure 115 and at least one second clamping structure 116 . The first clamping structure 115 and the second clamping structure 116 are arranged opposite to each other so as to be clamped and fixed with the adjacent reagent strip 11 .

[0097] Preferably, the first side of the reagent strip 11 includes two first snap-fit ​​structures 115 disposed at intervals, and the second side of the reagent strip 11 includes two second snap-fit ​​structures 116 disposed at intervals.

[0098] Preferably, the second magnetic member is a magnetic bead, and the first magnetic member 5 is a magnetic sleeve.

[0099] The reagent strip 11 of this embodiment is compatible with 0.05-10 mL of sample liquid, thus achieving flexible sample detection.

[0100] In this embodiment, at least one heating element 13 and a micro switch 14 are also included. Both the at least one heating element 13 and the micro switch 14 are arranged on the first mounting frame 12. At least one heating element 13 is used to heat the reagent in the first reagent holding tank 113 and / or the second reagent holding tank 112. The micro switch 14 is used to identify the position information of the reagent strip 11 and fix the reagent strip 11.

[0101] Preferably, three heating elements 13 are included, and the heating elements 13 are arranged at intervals at the bottom of at least two reagent strips 11 , so as to heat the three containing grooves of the reagent strip 11 .

[0102] Specifically, the reagent strip assembly includes at least two reagent strips 11, the arrangement direction of the at least two reagent strips 11 is defined as a first direction, the heating element 13 is set at the bottom of the reagent strip 11, and the heating element 13 is arranged along the first direction to achieve heating of the same position to be heated of the at least two reagent strips 11.

[0103] In this embodiment, a reagent driving assembly is further included. The reagent driving assembly is disposed at the bottom of the first mounting frame 12 and is used to drive the first mounting frame 12 to move back and forth to mix the reagents in the first reagent containing tank 113 .

[0104] Preferably, the reagent drive assembly includes a first linear guide and a first linear motor, the first mounting frame 12 is arranged on the linear guide, and the first linear motor is drivingly connected to the first linear guide so that the first linear motor can drive the first mounting frame 12 to move along the arrangement direction of the first linear guide.

[0105] Furthermore, the first linear guide rail is arranged along the length direction of the first reagent containing tank 113 , so that the first linear motor can fully mix the reagent in the first reagent containing tank 113 when driving the first mounting frame 12 to move.

[0106] In this embodiment, the reagent drive assembly also includes a slider fixing plate 15, a slider 17 and a roller 16; the two sides of the slider fixing plate 15 are respectively fixedly connected to the roller 16 and the first mounting frame 12, and the slider 17 is arranged on the slider fixing plate 15. The slider 17 can be slidably connected to the first linear guide rail to drive the first mounting frame 12 to move along the arrangement direction of the first linear guide rail.

[0107] Specifically, the number of the slider fixing plates 15 , the sliders 17 and the rollers 16 are consistent.

[0108] Preferably, the reagent driving assembly includes two slider fixing plates 15 , two sliders 17 and two rollers 16 . The two slider fixing plates 15 are spaced apart at the bottom of the first mounting frame 12 , and each slider fixing plate 15 is provided with a slider 17 and a roller 16 .

[0109] Furthermore, the roller 16 is protruded from the slider fixing plate, so that when the roller 16 moves along the direction of the first linear guide rail, it can abut against the window of the extraction instrument, so that the window of the extraction instrument can be opened by the roller 16 .

[0110] Furthermore, the arrangement direction of the reagent strips 11 is consistent with the arrangement direction of the first linear guide rail.

[0111] Furthermore, the arrangement direction of at least two reagent strips 11 is perpendicular to the arrangement direction of the reagent strips 11 .

[0112] In this embodiment, the reagent drive assembly includes a first linear guide and a first linear motor. The first mounting frame 12 is arranged on the first linear guide. The first linear motor is driven and connected to the first linear guide so that the first linear motor can drive the first mounting frame 12 to move along the arrangement direction of the first linear guide.

[0113] In this embodiment, the arrangement direction of the first linear guide is consistent with the length direction of the reagent strip 11, so that when the reagent strip 11 reciprocates along the first linear guide, the reagents in the reagent strip 11 can be mixed.

[0114] Although the present invention has been described through preferred embodiments, the present invention is not limited to the embodiments described herein, but also includes various changes and modifications without departing from the scope of the present invention.

[0115] In this article, the directional words such as front, back, top, and bottom involved are defined by the positions of the components in the drawings and the positions of the components relative to each other, just for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the directional words should not limit the scope of protection claimed by the utility model.

[0116] In the absence of conflict, the above embodiments and features in the embodiments can be combined with each other.

[0117] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A reagent strip assembly, characterized in that: It comprises a first mounting frame (12) and a reagent strip (11), wherein the first mounting frame (12) has a reagent strip mounting position, and the reagent strip (11) is detachably arranged in the reagent strip mounting position; The reagent strip (11) is provided with an installation accommodation position (111) for accommodating a first magnetic member (21), a first reagent accommodating groove (113) and at least two second reagent accommodating grooves (112) at intervals; the capacity of the first reagent accommodating groove (113) is different from the capacity of the second reagent accommodating groove (112); the first reagent accommodating groove (113) and the second reagent accommodating groove (112) can both accommodate a second magnetic member and a reagent; the second magnetic member, driven by the first magnetic member (21), can move in the first reagent accommodating groove (113) and / or the second reagent accommodating groove (112) to stir the reagent in the first reagent accommodating groove (113) and / or the second reagent accommodating groove (112).

2. The reagent strip assembly according to claim 1, characterized in that: The invention comprises at least two reagent strips (11); a first clamping structure (115) and a second clamping structure (116) are arranged oppositely on two sides of the reagent strip (11); the first clamping structure (115) of the reagent strip (11) is clamped and fixedly connected with the second clamping structure (116) of the adjacent reagent strip (11).

3. The reagent strip assembly according to claim 1, characterized in that: The reagent strip (11) is also provided with a pipette tip accommodating position (114), and the pipette tip accommodating position (114) is used to accommodate a pipette tip; The installation accommodation position (111), the at least two second reagent accommodation slots (112), the first reagent accommodation slot (113) and the pipette tip accommodation position (114) are arranged at intervals on the reagent strip (11).

4. The reagent strip assembly according to claim 1, characterized in that: The middle part of the first mounting frame (12) has a reagent strip mounting position; The first mounting frame (12) is provided with a clamping spring (121), and the reagent strip (11) is provided with a third clamping structure (117) matching the clamping spring (121); the reagent strip (11) is clamped and fixed to the first mounting frame (12) via the third clamping structure (117) and the clamping spring (121) so as to be fixed at the reagent strip mounting position.

5. The reagent strip assembly according to claim 4, characterized in that: The reagent strip (11) further comprises at least one heating element (13) and a micro switch (14), wherein the at least one heating element (13) and the micro switch (14) are both arranged on the first mounting frame (12), the at least one heating element (13) is used to heat the reagent in the first reagent holding tank (113) and / or the second reagent holding tank (112), and the micro switch (14) is used to identify the position information of the reagent strip (11) and fix the reagent strip (11).

6. The reagent strip assembly according to claim 5, characterized in that: The arrangement direction of the heating element (13) is consistent with the arrangement direction of at least two reagent strips (11).

7. The reagent strip assembly according to any one of claims 1 to 6, characterized in that: It also includes a reagent driving assembly, which is arranged at the bottom of the first mounting frame (12) and is used to drive the first mounting frame (12) to move back and forth to mix the reagents in the first reagent containing tank (113).

8. The reagent strip assembly according to claim 7, characterized in that: The reagent driving assembly comprises a first linear guide and a first linear motor, the first mounting frame (12) is arranged on the first linear guide, and the first linear motor is drivingly connected to the first linear guide so that the first linear motor can drive the first mounting frame (12) to move along the arrangement direction of the first linear guide.

9. The reagent strip assembly according to claim 8, characterized in that: The arrangement direction of the first linear guide rail is consistent with the length direction of the reagent strip (11).

10. The reagent strip assembly according to claim 8, characterized in that: The reagent driving assembly also includes a slider fixing plate (15), a slider (17) and a roller (16); the two sides of the slider fixing plate (15) are respectively fixedly connected to the roller (16) and the first mounting frame (12), and the slider (17) is arranged on the slider fixing plate (15). The slider (17) can be slidably connected to the first linear guide rail to drive the first mounting frame (12) to move along the arrangement direction of the first linear guide rail.

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