Sample strip reading mechanism of sample tube and sample analysis system

Abstract

The invention relates to a sample strip reading mechanism of a sample tube and a sample analysis system. The sample strip reading mechanism comprises a first driving assembly, a clamping assembly, a first position obtaining assembly and an identification module. The clamping assembly can be used for clamping a sample tube, and the first driving assembly can be used for driving the clamping assembly to rotate around the axis of the sample tube in a clamping state; the first position obtaining assembly can obtain the rotating position of the clamping assembly relative to the axis of the sample tube when the clamping assembly carries out clamping operation; the recognition assembly is fixed to the side of the clamping assembly and can obtain sample tube image information when the first position obtaining assembly detects that the clamping assembly rotates to different first preset positions so as to recognize sample strips on the sample tubes. According to the sample strip reading mechanism and the recognition assembly, through cooperation with the first position obtaining assembly, image information of the sample tube can be obtained in a multi-angle mode, the sample strip on the sample tube can be covered, the angle of the sample strip does not need to be manually adjusted, and the recognition precision and efficiency of the sample strip are guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a sample strip reading mechanism for a sample tube and a sample analysis system. Background Art

[0002] With the development of the medical industry, medical equipment is becoming more and more automated and intelligent. Biological samples such as saliva, blood, feces, urine, sputum, and viruses do not require human intervention from collection to information entry to testing. During this period, the most important carrier for the transmission and traceability of sample information is the barcode. Therefore, how to quickly and effectively read the barcode on the sample tube plays an important role in the detection efficiency and reliability of medical equipment.

[0003] Currently, the barcode on the sample tube is mainly identified by fixing the angle of the sample tube. However, this requires manual adjustment of the angle of the sample tube in advance so that when the sample tube reaches the side of the camera, the barcode on the sample tube can face the camera. The whole process is relatively cumbersome and there are also manual errors, resulting in low efficiency in identifying the barcode on the sample tube. Summary of the invention

[0004] Based on this, it is necessary to provide a sample strip reading mechanism and a sample analysis system for a sample tube in order to address the above technical issues.

[0005] A sample strip reading mechanism for a sample tube, comprising:

[0006] a first drive assembly;

[0007] A clamping assembly capable of clamping the sample tube, wherein the first driving assembly can drive the clamping assembly to rotate around the axis of the sample tube in a clamping state;

[0008] A first position acquisition component, capable of acquiring a rotational position of the clamping component relative to the axis of the sample tube when the clamping component performs a clamping operation; and

[0009] The identification component is fixed to the side of the clamping component and can obtain image information of the sample tube when the first position acquisition component detects that the clamping component rotates to a different first preset position to identify the sample strip information on the sample tube.

[0010] In one embodiment, the first position acquisition component includes a first code disk and a first sensing element. The first code disk is mounted outside the clamping component and rotates synchronously with the clamping component. The first sensing element is fixed to the outer peripheral side of the first code disk and can cooperate with the first code disk to obtain the rotation position of the clamping component.

[0011] In one embodiment, the outer edge of the first code disk is provided with a plurality of notch portions and a plurality of non-notch portions, and the notch portions and the non-notch portions are alternately arranged along the circumference of the first code disk;

[0012] The first sensing element is located on the outer peripheral side of the first code disk and has a transmitting end and a receiving end that are arranged opposite to each other. When the notch portion or the non-notch portion rotates to between the transmitting end and the receiving end, the first sensing element can generate a first signal, and the first signal is used to generate an identification instruction;

[0013] The recognition component can obtain image information of the sample tube based on the recognition instruction.

[0014] In one embodiment, the number of the notches is at least 4; and / or the first sensing element is a photoelectric sensor or a Hall sensor.

[0015] In one embodiment, the first driving component is further capable of driving the gripping component to rotate around the axis of the sample tube to perform a position calibration operation or a reset operation;

[0016] The first position acquisition component can also acquire the rotational position of the clamping component relative to the axis of the sample tube when the clamping component performs a position calibration operation or a reset operation. When the first position acquisition module detects that the clamping component rotates to a second preset position, the clamping component can clamp the sample tube.

[0017] In one embodiment, the clamping assembly is disposed on an execution end of the first driving assembly, and the first position acquisition assembly is disposed at an end of the clamping assembly connected to the execution end.

[0018] In one embodiment, the clamping assembly includes a plurality of clamping fingers and a rotatable rotating cylinder; the rotating cylinder is disposed on the execution end of the first driving assembly; the plurality of clamping fingers are arranged along the circumference of the rotating cylinder and are rotatably connected to the bottom of the rotating cylinder so as to be expanded or folded.

[0019] In one embodiment, the first driving assembly includes a rotating power member and a first transmission member, the first transmission member includes a driving wheel arranged on the output end of the rotating power member and a driven wheel arranged on the outer circumferential surface of the rotating cylinder, and the driving wheel is connected to the driven wheel through a transmission part.

[0020] In one embodiment, the sample strip reading mechanism further comprises a second drive assembly, the execution end of the second drive assembly extends into the rotating cylinder and cooperates with the clamping fingers, so that the execution end of the second drive assembly can drive the clamping fingers to expand or retract when moving axially along the rotating cylinder.

[0021] In one embodiment, the second driving assembly includes a clamping power member and a plurality of clamping push blocks, wherein the clamping push blocks are arranged in the rotating cylinder at intervals along the circumference of the rotating cylinder and can move synchronously with the output end of the clamping power member or the rotating cylinder, and the clamping push blocks have strip holes, and the side of the clamping fingers close to the clamping power member extends into the corresponding strip hole and can rotate relative to the rotating cylinder when the corresponding clamping push blocks move.

[0022] A sample analysis system, comprising an analyzer and a sample strip reading mechanism as described in any one of the above items;

[0023] The sample strip reading mechanism is used to transfer the sample tube to the analyzer and identify the sample strip information on the sample tube during the transfer process.

[0024] The sample strip reading mechanism and the sample analysis system of the above-mentioned sample analysis system can obtain the image information of the sample tube when the clamping component is rotated to different first preset positions through the cooperation of the identification component and the first position acquisition component. This makes it possible for the identification component to cover the sample strip on the sample tube regardless of how the angle of the sample strip on the sample tube is set, because it can obtain the image information of the sample tube at multiple angles, so that the sample strip can be accurately identified without manually adjusting the angle of the sample strip, thereby simplifying the entire process, avoiding manual errors, and ensuring the recognition accuracy and efficiency of the sample strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a sample strip reading mechanism of a sample tube provided in one embodiment of the present application.

[0026] Figure 2 A schematic diagram of the structure of a sample tube provided in one embodiment of the present application.

[0027] Figure 3 for Figure 1 A schematic diagram of the partial structure of the sample strip reading mechanism is provided.

[0028] Figure 4 A schematic diagram of placing sample tubes on a sample rack provided in one embodiment of the present application.

[0029] Figure 5 for Figure 1 A schematic three-dimensional structure diagram of a first position acquisition component of a sample strip reading mechanism is provided.

[0030] Figure 6 for Figure 5 A top view of a first position acquisition assembly is provided.

[0031] Figure 7 for Figure 1 A schematic diagram of the recognition component of the provided sample strip reading mechanism acquiring image information of the sample tube from different angles.

[0032] Figure 8 for Figure 1 A schematic diagram of the identification component of the provided sample strip reading mechanism acquiring image information of the sample tube.

[0033] The reference numerals in the accompanying drawings are described as follows:

[0034] 10. Sample strip reading mechanism; 100. First driving assembly; 110. Rotating power member; 120. First transmission member; 121. Driving wheel; 122. Driven wheel; 123. Transmission part; 200. Clamping assembly; 210. Clamping finger; 220. Rotating cylinder; 300. First position acquisition assembly; 310. First code disk; 311. Notch part; 312. Non-notch part; 320. First sensing element; 400. Identification Component; 500, second driving component; 510, clamping power member; 520, clamping push block; 520a, strip hole; 600, mounting seat; 610, top plate; 620, middle layer; 630, bottom plate; 640, column; 700, mounting frame; 800, second position acquisition component; 810, second code disk; 820, second sensing element; 20, sample tube; 20a, sample strip; 30, sample rack; Q, gap. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0036] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0037] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0039] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0041] A sample tube is a container used to store and transport biological samples. It is usually made of medical-grade plastic and is widely used in clinical experiments. It can be used to store various types of biological samples, including saliva, blood, feces, urine, sputum, viruses, etc. The sample tube is usually affixed with a sample strip, which can be regarded as the identity card of the specimen. The sample strip on the sample strip generally carries the patient's name, gender, examination items and other information.

[0042] When performing biochemical analysis or immunoassay, the collected sample tubes are usually placed in a sample rack first, and then a sample strip reading mechanism is used to transfer the sample tubes to a sample tray for analysis by an analyzer. The sample strip reading mechanism also needs to identify the sample strip on the sample tube during the grabbing and transfer process.

[0043] At present, the method of fixing the angle of the sample tube is mainly used to identify the sample bar on the sample tube, but this requires manual adjustment of the angle of the sample tube in advance so that when the sample tube reaches the side of the camera, the barcode on the sample tube can face the camera. The whole process is relatively cumbersome and there are also manual errors, resulting in low efficiency in barcode recognition on the sample tube.

[0044] In this regard, Figure 1 As shown, an embodiment of the present application provides a sample strip reading mechanism 10 for a sample tube, which can transfer a sample tube 20 on a sample rack 30 to a sample tray, and during the transfer process, can also identify the sample strip information on the sample tube 20. Of course, the sample strip reading mechanism 10 can also be used for the transportation and identification of other sample containers with sample strips 20a attached thereto.

[0045] like Figure 2 As shown, the sample strip reading mechanism 10 can be used to identify the sample strip 20a arranged on the sample tube 20 along the length direction of the sample tube 20. Of course, if the length of the sample strip 20a is not large, it can also be arranged on the sample tube 20 along the circumference of the sample tube 20.

[0046] like Figure 1 and Figure 3 As shown, the sample strip reading mechanism 10 includes a mounting seat 600, a driving module, a clamping assembly 200, a first position acquisition assembly 300, and an identification assembly 400. The mounting seat 600 serves as a supporting structure of the entire sample strip reading mechanism 10 and plays a role in mounting the driving module, the clamping assembly 200, the first position acquisition assembly 300, and the identification assembly 400. The mounting seat 600 can be set as a frame structure or other structures as required, and this application does not make specific restrictions. For example, Figure 1 As shown, the mounting base 600 may include a top plate 610, an intermediate layer 620, a bottom plate 630 and a column 640. The top plate 610 and the bottom plate 630 are arranged opposite to each other, the intermediate layer 620 is located between the top plate 610 and the bottom plate 630, the column 640 is connected to the top plate 610, the intermediate layer 620 and the bottom plate 630, the intermediate layer 620 is used for installing the first position acquisition component 300 and the driving module, and the bottom plate 630 is used for installing the identification component 400. The driving module serves as the power structure of the entire sample strip reading mechanism 10, and mainly provides power to the clamping component 200, so that the clamping component 200 can perform corresponding actions. Among them, as shown in FIG. Figure 1 and Figure 3 As shown, the driving assembly includes a first driving assembly 100 and a second driving assembly 500 both disposed on a mounting base 600 .

[0047] The clamping assembly 200 is a structure for clamping the sample tube 20, and can clamp the sample tube 20. The second driving assembly 500 can drive the clamping assembly 200 to clamp the sample tube 20, so as to clamp the sample tube 20; the first driving assembly 100 can drive the clamping assembly 200 to rotate around the axis of the sample tube 20 in the clamped state. When the clamping assembly 200 keeps clamping the sample tube 20 under the action of the second driving assembly 500, it is also driven by the first driving assembly 100 to rotate around the axis of the sample tube 20.

[0048] Alternatively, if Figure 3 As shown, the gripping assembly 200 may include a plurality of gripping fingers 210 and a rotatable rotating cylinder 220; the rotating cylinder 220 is rotatably disposed on the mounting seat 600 and disposed on the execution end of the first driving assembly 100, and the plurality of gripping fingers 210 are arranged along the circumference of the rotating cylinder 220 and are rotatably connected to the bottom of the rotating cylinder 220 to be expanded or retracted. Optionally, the rotating cylinder 220 is rotatably disposed on the mounting seat 600 via a bearing.

[0049] The number of the clamping fingers 210 can be set accordingly according to the arrangement of the sample tubes 20 on the sample rack 30. For example, Figure 4 As shown in FIG. 1 , when the sample tubes 20 are arranged in a matrix on the sample rack 30, four gaps Q can be uniformly formed between the sample tube 20 and four adjacent sample tubes 20 around the axis thereof. Figure 3 As shown, the gripping assembly 200 may be provided with four gripping fingers 210 evenly arranged along the circumference of the rotating cylinder 220 .

[0050] The first position acquisition component 300, as a positioning structure of the entire sample strip reading mechanism 10, can acquire the rotational position of the clamping component 200 relative to the axis of the sample tube 20 when the clamping component 200 performs a clamping operation.

[0051] The identification component 400, as the identification structure of the entire sample strip reading mechanism 10, is fixed to the side of the clamping component 200, and can obtain image information of the sample tube 20 when the first position acquisition component 300 detects that the clamping component 200 rotates to different first preset positions, so as to identify the sample strip on the sample tube 20. The identification component 400 can obtain image information of the sample tube 20 when the clamping component 200 rotates to different first preset positions by cooperating with the first position acquisition component 300. This allows the identification component 400 to cover the sample strip 20a on the sample tube 20 because it can obtain image information of the sample tube 20 at multiple angles regardless of how the angle of the sample strip 20a on the sample tube 20 is set, so that the sample strip 20a can be accurately identified without manually adjusting the angle of the sample strip 20a, which can simplify the entire process, avoid manual errors, and ensure the identification accuracy and efficiency of the sample strip 20a.

[0052] Optionally, the identification component 400 may be a camera with processing capabilities; or, the identification module includes an image acquisition unit and a processing unit, the image acquisition unit may be a camera for acquiring image information of the sample tube 20, and the processing unit is electrically connected to the image acquisition unit for identifying the sample strip 20a based on the image information.

[0053] like Figure 5 and Figure 6 As shown, in some embodiments of the present application, the first position acquisition component 300 includes a first code disk 310 and a first sensing element 320. The first code disk 310 is sleeved outside the clamping component 200 and rotates synchronously with the clamping component 200. The first sensing element 320 is fixed to the outer peripheral side of the first code disk 310 and can cooperate with the first code disk 310 to obtain the rotation position of the clamping component 200. The first code disk 310 can rotate synchronously with the clamping component 200, and the first sensing element 320 can be used to obtain the rotation position of the first code disk 310 relative to the axis of the sample tube 20 to determine the rotation position of the clamping component 200 relative to the axis of the sample tube 20.

[0054] Further, in some embodiments of the present application, Figure 5 and Figure 6As shown, the outer edge of the first code disk 310 is provided with a plurality of notch portions 311 and a plurality of notch portion 311 non-notch portions 312, and the notch portions 311 and the notch portion 311 non-notch portions 312 are alternately arranged along the circumference of the first code disk 310; the first sensing element 320 is located on the outer peripheral side of the first code disk 310 and has a transmitting end and a receiving end that are relatively arranged, when the notch portion 311 or the notch portion 311 non-notch portion 312 rotates to between the transmitting end and the receiving end, the first sensing element 320 can generate a first position signal, and the first position signal is used to generate an identification instruction; the identification component 400 can obtain image information of the sample tube 20 based on the identification instruction to identify the sample strip 20a. The following takes the example of four notches 311 evenly arranged on the first code disk 310 for the first position acquisition component 300 to generate a first position signal as an example, and describes the cooperation process between the first position acquisition component 300 and the recognition component 400: during the 360° rotation of the clamping component 200, the first position acquisition component 300 generates a first signal every 90°, and generates a total of four first signals, and the recognition component 400 also correspondingly obtains the image information of the sample tube 20 four times, which can cover the recognition requirements of the sample strip 20a at any angle. By setting the notch 311 or the non-notch 312 on the first code disk 310, the physical edge (i.e., the rising edge or the falling edge) of the first code disk 310 can be used to control the shooting, so that the shooting time is more accurate, and avoid the problem of leading or lagging the shooting angle caused by software control or acceleration and deceleration curve matching.

[0055] Optionally, the notch portion 311 and the non-notch portion 312 are uniformly arranged along the circumference of the first code disk 310. The circumferential width of the notch portion 311 for causing the first position acquisition component 300 to generate the first position signal or the non-notch portion 312 for causing the first position acquisition component 300 to generate the first position signal along the first code disk 310 can be adjusted accordingly according to the detection accuracy.

[0056] Optionally, the number of the notch portions 311 is at least 4, for example, 4, 5, 6, 7, 8 or more. Considering that the size of the sample strip 20a along the circumference of the sample tube 20 is usually 8 mm to 10 mm, and the maximum photographing angle of the identification component 400 is 45°, setting the number of the notch portions 311 to at least 4 allows the identification component 400 to photograph the sample tube 20 at least 4 times, and can cover the identification requirements of the sample strip 20a at any angle. It can be understood that the number of the non-notch portions 312 is the same as that of the notch portions 311.

[0057] Preferably, four notches 311 are evenly arranged along the circumference of the sample tube 20 . Figure 7FIG. 4 is a schematic diagram of the photographing position of the recognition component 400 when the limit photographing angle α is 45°. The sample strip 20a is attached to the surface of the sample tube 20 along the axial direction (taking the circumferential dimension of 8 mm as an example). When the four notches 311 on the first code disk 310 trigger the recognition component 400 to take a photo, it is equivalent to Figure 7 The four shooting directions are shown. At this time, the shooting time of the recognition component 400 matches the physical edge, which can effectively avoid the problem of early or delayed shooting caused by unreasonable shooting intervals. At this time, the size of the sample strip 20a taken in the first photo and the fourth photo is the same (about 6mm). When the sample strip 20a is placed at other angles, the size of at least one of the sample strips 20a taken is larger than 6mm, which effectively ensures the recognition component 400 recognizes the sample strip 20a. It should be noted that Figure 8 The dotted line in represents the photographing range of the recognition component 400.

[0058] Optionally, the first sensing element 320 is a photoelectric sensor (eg, a zero-point optical coupler) or a Hall sensor.

[0059] Alternatively, if Figure 3 As shown, the sample strip reading mechanism 10 further includes a mounting frame 700, the mounting frame 700 is disposed on the mounting seat 600, and the first sensing element 320 is disposed on the mounting frame 700. Optionally, the mounting frame 700 includes a first mounting portion and a second mounting portion vertically connected, the first mounting portion can be connected to the mounting seat 600 by screw connection, welding, clamping, etc., and the second mounting portion can be connected to the first sensing element 320 by screw connection, welding, clamping, etc.

[0060] If the clamping fingers 210 of the clamping assembly 200 do not extend into the gap Q between the corresponding adjacent sample tubes 20 on the sample rack 30, the sample tubes 20 will be collided with, and the safety of the samples cannot be guaranteed. In this regard, in some embodiments of the present application, the first driving assembly 100 can also drive the clamping assembly 200 to rotate around the axis of the sample tube 20 to perform a position calibration operation or a reset operation; the first position acquisition assembly 300 can also obtain the rotation position of the clamping assembly 200 relative to the axis of the sample tube when the clamping assembly 200 performs a position calibration operation or a reset operation. When the first position acquisition module detects that the clamping assembly 200 rotates to the second preset position, the clamping assembly 200 can clamp the sample tube 20. When the first drive assembly 100 receives the instruction to clamp the sample tube 20, it drives the clamp assembly 200 to rotate around the axis of the sample tube 20 to the second preset position, so that each clamping finger 210 on the sample strip reading mechanism 10 can extend into the gap Q corresponding to the adjacent sample tube 20 in the sample rack 30 to grab the sample tube 20. The entire operation process can be called a position calibration operation process. After that, the second drive assembly 500 drives the clamp assembly 200 to clamp the sample tube 20. The entire operation process can be called a clamping operation process. After the sample tube 20 is transferred to the sample tray, the first drive assembly 100 drives the clamp assembly 200 to rotate to the initial position to facilitate the clamping of the next sample tube 20. The entire operation process can be called a reset operation process. Among them, when the notch portion 311 or the non-notch portion 312 of the first code disk 310 rotates to between the transmitting end and the receiving end of the first sensing element 320, the first sensing element 320 sends a second signal. At this time, it can be determined that the clamping component 200 is rotated into place, thereby completing the position calibration operation or reset operation of the clamping component 200; otherwise, it is determined that the clamping component 200 has not been rotated into place.

[0061] The first preset position may be the same as the second preset position, or different. If they are the same, when the notch portion 311 or the non-notch portion 312 of the first code disk 310 rotates between the transmitting end and the receiving end of the first sensing element 320, the first sensing element 320 generates a first signal when the clamping component 200 performs a clamping operation, and the first sensing element 320 generates a second signal when the clamping component 200 performs a position calibration operation or a reset operation. If they are not the same, when the notch portion 311 of the first code disk 310 rotates to between the transmitting end and the receiving end of the first sensing element 320, the first sensing element 320 will generate a first signal when the clamping component 200 performs a clamping operation, and when the non-notch portion 312 of the first code disk 310 rotates to between the transmitting end and the receiving end of the first sensing element 320, the first sensing element 320 will generate a second signal when the clamping component 200 performs a position calibration operation or a reset operation; or, when the non-notch portion 312 of the first code disk 310 rotates to between the transmitting end and the receiving end of the first sensing element 320, the first sensing element 320 will generate a first signal when the clamping component 200 performs a clamping operation, and when the notch portion 311 of the first code disk 310 rotates to between the transmitting end and the receiving end of the first sensing element 320, the first sensing element 320 will generate a second signal when the clamping component 200 performs a position calibration operation or a reset operation.

[0062] Furthermore, if Figure 3 As shown, in some embodiments, the clamping assembly 200 is arranged on the execution end of the first driving assembly 100, and the first position acquisition assembly 300 is arranged at one end of the clamping assembly 200 connected to the execution end. The first driving assembly 100 and the second driving assembly 500 both have an execution end, and the execution end refers to the end of the power output. The first position acquisition assembly 300 is arranged at the execution end of the first driving assembly 100, which can avoid the detection error caused by the transmission of the transmission structure of the first driving assembly 100, and can accurately determine the rotation position of the clamping finger 210 of the clamping assembly 200 relative to the axis of the sample container, prevent the clamping finger 210 of the clamping assembly 200 from colliding with the sample container, and ensure the safety of the sample; and the position calibration operation and the reset operation of the clamping assembly 200 share the first position acquisition assembly 300, which can reduce the number of the first position acquisition assembly 300 used and reduce the cost of the sample strip reading mechanism 10.

[0063] like Figure 3As shown, in some embodiments, the first driving assembly 100 includes a rotating power member 110 and a first transmission member 120; the rotating power member 110 is disposed on the mounting seat 600; the first transmission member 120 includes a driving wheel 121 disposed on the output end of the rotating power member 110 and a driven wheel 122 disposed on the outer circumference of the rotating cylinder 220, and the driving wheel 121 is connected to the driven wheel 122 through a transmission part 123. When the output end of the rotating power member 110 rotates, the driving wheel 121 also rotates, and then drives the driven wheels 122122 to rotate through the transmission part 123, thereby causing the rotating cylinder 220 of the clamping assembly 200 to rotate.

[0064] The rotating power component 110 may be a rotating motor.

[0065] like Figure 3 As shown, in some embodiments of the present application, the execution end of the second driving assembly 500 extends into the rotating cylinder 220 and cooperates with the clamping fingers 210, so that the execution end of the second driving assembly 500 can drive the clamping fingers 210 to expand or retract when moving along the axial direction of the rotating cylinder 220. When the clamping assembly 200 is rotated into place, the execution end of the second driving assembly 500 moves along the axial direction of the rotating cylinder 220 to drive the clamping fingers 210 to expand or retract, thereby grabbing or releasing the sample tube 20.

[0066] Furthermore, if Figure 3 As shown, the second driving assembly 500 includes a clamping power member 510 and a plurality of clamping push blocks 520; the clamping power member 510 is arranged on the mounting seat 600; the clamping push blocks 520 are arranged in the rotating cylinder 220 along the circumferential interval of the rotating cylinder 220 and can move synchronously with the output end of the clamping power member 510 or the rotating cylinder 220, and the clamping push blocks 520 have a strip hole 520a, and the side of the clamping finger 210 close to the clamping power member 510 extends into the corresponding strip hole 520a and can rotate relative to the rotating cylinder 220 when the corresponding clamping push block 520 moves. When the clamping push block 520 moves along the axial direction of the rotating cylinder 220, the side of the clamping finger 210 close to the clamping power member 510 can rotate relative to the rotating cylinder 220 under the limitation of the corresponding inclined strip hole 520a, so as to expand or retract. The second driving assembly 500 of this structure is simple in structure, which can simplify the structure of the entire clamping structure.

[0067] Optionally, the clamping power member 510 may be a clamping motor with a lead screw nut structure at the output end. When the output end of the clamping motor rotates, the lead screw nut structure may convert the rotational motion of the output end of the clamping motor into a linear motion, thereby causing the clamping push block 520 to perform a linear motion along the axial direction of the rotating cylinder 220. The mounting seat 600 has a through hole for the lead screw nut structure to pass through.

[0068] Optionally, the outer circumference of the lead screw nut structure is provided with a first stopper and a second stopper (not shown in the drawings) at intervals along the axial direction of the rotating cylinder 220, and the connection of the plurality of clamping push blocks 520 is sleeved on the outer circumference of the lead screw nut structure and located between the first stopper and the second stopper. In this way, the clamping push block 520 can move linearly synchronously with the lead screw nut structure at the output end of the clamping power member 510 or rotate synchronously with the rotating cylinder 220.

[0069] Optionally, a roller is provided on one side of the clamping finger 210 close to the clamping power member 510, and the roller can move in the corresponding strip hole 520a. In this way, the expansion or contraction of the clamping finger 210 can be made smoother.

[0070] Regarding the number of clamping push blocks 520, it can be set accordingly according to the situation of the clamping fingers 210. For example, when the clamping assembly 200 is evenly provided with 4 clamping fingers 210 along the circumference of the first code disk 310, 4 clamping push blocks 520 are also correspondingly evenly provided along the circumference of the first code disk 310.

[0071] Continue to see Figure 3 In some embodiments of the present application, the sample strip reading mechanism 10 further includes a second position acquisition component 800, which can acquire the position of the lead screw nut structure of the second driving component 500 along the axial direction of the rotating cylinder 220. In this way, it can be determined whether the clamping component 200 has clamped or released the sample tube 20 in place according to the position of the lead screw nut structure of the second driving component 500 along the axial direction of the rotating cylinder 220.

[0072] Alternatively, if Figure 3 As shown, the second position acquisition component 800 includes a second code disk 810 and a second sensing element 820. The second code disk 810 is arranged around the rotating cylinder 220 and connected to the lead screw nut structure. The second sensing element 820 is installed on the mounting frame 700 and has a transmitting end and a receiving end arranged oppositely. When the second code disk 810 extends between the transmitting end and the receiving end, the second sensing element 820 can generate a second signal, wherein the second signal is used to determine the position of the lead screw nut structure of the second driving component 500 along the axial direction of the rotating cylinder 220. When the second sensing element 820 senses the second code disk 810 (i.e., is blocked by the second code disk 810), the second signal is generated, and it can be determined that the clamping component has not clamped or released the sample tube 20 in place; otherwise, it is determined that the clamping component has clamped or released the sample tube 20 in place.

[0073] Optionally, the mounting bracket 700 further includes a third mounting portion vertically connected to the second mounting portion, and the third mounting portion is connected to the second sensing element 820 by welding, screw connection, clamping, or the like.

[0074] Optionally, the second sensing element is a photoelectric sensor (such as a zero-point optical coupler) or a Hall sensor.

[0075] On the other hand, an embodiment of the present application further provides a sample analysis system, which includes an analyzer and a sample strip reading mechanism 10 as described in any of the above items; the sample strip reading mechanism 10 is used to transfer the sample tube to the analyzer, and can identify the sample strip information on the sample tube 20 during the transfer process.

[0076] Alternatively, the analyzer may be a biochemical analyzer or an immunoassay analyzer.

[0077] The sample analysis system is provided with an identification component 400 and a first position acquisition component 300 on the sample strip reading mechanism 10. The identification component 400 cooperates with the first position acquisition component 300 to acquire image information of the sample tube 20 when the clamping component 200 rotates to different first preset positions. Therefore, no matter how the angle of the sample strip 20a on the sample tube 20 is set, the identification component 400 can acquire image information of the sample tube 20 at multiple angles and can cover the sample strip 20a on the sample tube 20, so that the sample strip 20a can be accurately identified without manually adjusting the angle of the sample strip 20a. This can simplify the entire process, avoid manual errors, and ensure the identification accuracy and efficiency of the sample strip 20a.

[0078] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A sample strip reading mechanism for a sample tube, characterized in that: include: a first drive assembly; A clamping assembly capable of clamping the sample tube, wherein the first driving assembly can drive the clamping assembly to rotate around the axis of the sample tube in a clamping state; A first position acquisition component, capable of acquiring a rotational position of the clamping component relative to the axis of the sample tube when the clamping component performs a clamping operation; as well as The identification component is fixed to the side of the clamping component and can obtain image information of the sample tube when the first position acquisition component detects that the clamping component rotates to a different first preset position to identify the sample strip information on the sample tube.

2. The sample strip reading mechanism according to claim 1, characterized in that: The first position acquisition component includes a first code disk and a first sensing element. The first code disk is mounted outside the clamping component and rotates synchronously with the clamping component. The first sensing element is fixed to the outer peripheral side of the first code disk and can cooperate with the first code disk to obtain the rotation position of the clamping component.

3. The sample strip reading mechanism according to claim 2, characterized in that: The outer edge of the first code disk is provided with a plurality of notch portions and a plurality of non-notch portions, and the notch portions and the non-notch portions are alternately arranged along the circumference of the first code disk; The first sensing element is located on the outer peripheral side of the first code disk and has a transmitting end and a receiving end that are arranged opposite to each other. When the notch portion or the non-notch portion rotates to between the transmitting end and the receiving end, the first sensing element can generate a first signal, and the first signal is used to generate an identification instruction; The recognition component can obtain image information of the sample tube based on the recognition instruction.

4. The sample strip reading mechanism according to claim 3, characterized in that: The number of the notches is at least 4; and / or the first sensing element is a photoelectric sensor or a Hall sensor.

5. The sample strip reading mechanism according to any one of claims 1 to 4, characterized in that: The first driving assembly can also drive the clamping assembly to rotate around the axis of the sample tube to perform a position calibration operation or a reset operation; The first position acquisition component can also acquire the rotational position of the clamping component relative to the axis of the sample tube when the clamping component performs a position calibration operation or a reset operation. When the first position acquisition module detects that the clamping component rotates to a second preset position, the clamping component can clamp the sample tube.

6. The sample strip reading mechanism according to claim 5, characterized in that: The clamping assembly is arranged on the execution end of the first driving assembly, and the first position acquisition assembly is arranged on one end of the clamping assembly connected to the execution end.

7. The sample strip reading mechanism according to claim 6, characterized in that: The clamping assembly includes a plurality of clamping fingers and a rotatable rotating cylinder; the rotating cylinder is arranged on the execution end of the first driving assembly; A plurality of the clamping fingers are arranged along the circumference of the rotating drum and are rotatably connected to the bottom of the rotating drum so as to be expanded or folded.

8. The sample strip reading mechanism according to claim 7, characterized in that: The first driving assembly includes a rotating power member and a first transmission member, wherein the first transmission member includes a driving wheel arranged on the output end of the rotating power member and a driven wheel arranged on the outer circumference of the rotating cylinder, and the driving wheel is connected to the driven wheel through a transmission part.

9. The sample strip reading mechanism according to claim 7, characterized in that: The sample strip reading mechanism also includes a second drive assembly, the execution end of which extends into the rotating cylinder and cooperates with the clamping fingers, so that the execution end of the second drive assembly can drive the clamping fingers to expand or retract when moving axially along the rotating cylinder.

10. The sample strip reading mechanism according to claim 9, characterized in that: The second driving assembly includes a clamping power member and a plurality of clamping push blocks, wherein the clamping push blocks are arranged in the rotating cylinder at intervals along the circumference of the rotating cylinder and can move synchronously with the output end of the clamping power member or the rotating cylinder, and the clamping push blocks have strip holes, and the side of the clamping fingers close to the clamping power member extends into the corresponding strip hole and can rotate relative to the rotating cylinder when the corresponding clamping push blocks move.

11. A sample analysis system, characterized in that: comprising an analyzer and a sample strip reading mechanism as claimed in any one of claims 1 to 10; The sample strip reading mechanism is used to transfer the sample tube to the analyzer, and can identify the sample strip information on the sample tube during the transfer process.

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