Sample analyzer and sample injection mechanism

Abstract

The utility model discloses a kind of sample analyzer and sample injection mechanism, sample injection mechanism includes: sample placement groove, for the placement of sample tube;First sample injection site, for the injection of conventional sample;Second sample injection site, for the injection of higher priority sample;Sample suction site, for sampling needle to suck sample from sample tube;Driving mechanism, for driving sample placement groove respectively moves to first sample injection site, second sample injection site or sample suction site, completes the injection sample suction operation of conventional sample or higher priority sample.The utility model will be injected by the same sample placement groove of conventional sample, higher priority sample, cooperate different sample injection site and sample suction site to complete, avoid the problem that the instrument cost is high, structure is complex, efficiency is low caused by respectively setting conventional sample injection mechanism, higher priority sample injection mechanism.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a sample analyzer and a sample injection mechanism. Background Technology

[0002] Sample analyzers are widely used testing instruments in the field of in vitro diagnostic technology. They can obtain clinical diagnostic information by testing human blood and body fluid samples, providing a basis for disease diagnosis and assessment of bodily functions.

[0003] The sample introduction mechanism is an integral part of the sample analyzer, used for the introduction of routine samples and high-priority samples, such as emergency sample introduction operations, to complete the sample detection in the analyzer; however, existing sample introduction mechanisms generally have separate introduction mechanisms for routine samples and high-priority samples, which is not only costly and complex in instrument structure, but also reduces the efficiency of sample introduction. Summary of the Invention

[0004] To address the aforementioned technical problems, this utility model discloses a sample analyzer and a sample injection mechanism, thereby solving the problem in the prior art where separate injection mechanisms are set up for conventional samples and higher priority samples.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A sample injection mechanism, comprising: Sample placement slot, used for placing sample tubes; The first injection position is used for injecting routine samples; The second injection position is used for injection of higher priority samples; The sampling position is used by the sampling needle to draw samples from the sample tube; The driving mechanism is used to drive the sample placement slot to move to the first injection position, the second injection position, or the aspiration position respectively, to complete the injection and aspiration operation of regular samples or high-priority samples.

[0006] Furthermore, the sample placement slot includes: The first placement slot is for placing ordinary sample tubes; The second placement slot is used for placing micro-volume blood collection tubes; The first placement slot and the second placement slot are arranged side by side on the drive mechanism.

[0007] Furthermore, the driving mechanism includes a motor, a conveyor belt, a drive wheel, a transmission wheel, a slide rail, a slider, a support plate, and a support frame; the slider is fixedly installed on the top of the support frame; one end of the slide rail is slidably installed on the slider, and can move back and forth along the top of the support frame; the drive wheel and the transmission wheel are respectively installed on one side of the slide rail; the conveyor belt is installed between the drive wheel and the transmission wheel; the drive wheel is fixed on the output shaft of the motor; the support plate is fixedly installed on the top of the slide rail; one side of the conveyor belt is fixed on the support plate; the first placement slot and the second placement slot are fixedly installed on one end of the support plate near the support frame, and the motor is located at the other end of the support plate.

[0008] Furthermore, an extrusion member is rotatably mounted on the side of the first placement slot facing the second placement slot; an elastic member is provided on the support frame on the side of the extrusion member away from the first placement slot.

[0009] Furthermore, the extrusion member includes an extrusion plate rotatably mounted at the bottom of the first placement groove; an extrusion block is provided on the top of the extrusion plate.

[0010] Furthermore, limiting platforms are provided on both sides of the extrusion block.

[0011] Furthermore, one end of the extrusion block that extends into the first placement groove is configured as an arc-shaped convex surface.

[0012] Furthermore, the elastic element includes a fixing plate vertically fixed on the support frame; a fixing block is horizontally installed on the top of the fixing plate facing the first placement groove; both sides of the fixing block are provided with through holes communicating with the fixing plate; a guide rod is slidably sleeved in the through hole; a blocking part is fixed at one end of the guide rod near the first placement groove, and the other end extends to the outside of the fixing plate; a baffle is provided on the guide rod between the fixing block and the fixing plate; a spring is sleeved on the guide rod between the baffle and the fixing plate.

[0013] Furthermore, rollers are also provided on both sides of the bottom of the first placement slot.

[0014] A sample analyzer includes the sample injection mechanism described above.

[0015] This utility model adopts the above technical solution and has the following advantages: This invention uses the same sample placement slot for both conventional and high-priority sample injection, combined with different injection and aspiration positions, avoiding the problems of high instrument cost, complex structure, and low efficiency caused by setting up separate injection mechanisms for conventional and high-priority samples. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the sample injection mechanism of this utility model; Figure 2 This is a schematic diagram of the sample placement slot and driving mechanism of this utility model; Figure 3 This is a top view of the sample placement slot and driving mechanism of this utility model; Figure 4 This is a schematic diagram of the drive mechanism of this utility model; Figure 5 This is a schematic diagram of the sample placement slot of this utility model; Figure 6 This is a schematic diagram of the structure of the extrusion part of this utility model; Figure 7 This is a schematic diagram of the structure of the elastic element of this utility model; Figure 8 This is a schematic diagram of the structure of the fixing block of this utility model.

[0017] Reference numerals: 1-Sample tube; 2-First injection position; 3-Second injection position; 4-Sampling position; 5-Sampling needle; 6-Sample tube clamping device; 7-First placement slot; 8-Second placement slot; 9-Motor; 10-Conveyor belt; 11-Drive wheel; 12-Transmission wheel; 13-Slide rail; 14-Slider; 15-Support plate; 16-Support frame; 17-Extrusion piece; 18-Extrusion plate; 19-Extrusion block; 20-Limiting platform; 21-Arc-shaped convex surface; 22-Fixing plate; 23-Fixing block; 24-Through hole; 25-Guide rod; 26-Blocking part; 27-Baffle plate; 28-Spring; 29-Roller. Detailed Implementation

[0018] The technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] like Figure 1 As shown, a sample injection mechanism includes a sample placement slot for placing a sample tube 1; a first injection position 2 for injecting regular samples; a second injection position 3 for injecting higher priority samples; an aspiration position 4 for a sampling needle 5 to aspirate samples from the sample tube 1; and a driving mechanism for driving the sample placement slot to move to the first injection position 2, the second injection position 3, or the aspiration position 4 respectively, to complete the injection and aspiration operation of regular samples or higher priority samples.

[0020] It is understood that the high-priority samples in this invention refer to emergency samples or other samples that require pre-arrangement for injection compared to regular samples. The first injection position 2 is located below the sample tube clamping device 6 used for regular sample injection, facilitating the placement of the clamped sample tube 1 into the sample placement slot at the first injection position 2. The second injection position 3 is located on the operator-facing side of the analyzer, closer to the operator than the first injection position 2, allowing the operator to manually place the high-priority samples directly into the sample placement slot at the second injection position 3, completing the rapid injection of high-priority samples. The sampling position 4 is located inside the analyzer, below the sampling needle 5, facilitating sample injection and detection operations. It is understood that the analyzer in this invention refers to a detection and analysis system containing the above-mentioned sample injection mechanism; the sampling needle 5 and the sample tube clamping device 6 utilize conventional technology in the field, and will not be described in detail here.

[0021] This invention uses the same sample placement slot for both conventional and high-priority sample injection, combined with different injection and aspiration positions 4, avoiding the problems of high instrument cost, complex structure, and low efficiency caused by setting up separate injection mechanisms for conventional and high-priority samples.

[0022] like Figure 2-3 As shown, the sample placement slot includes a first placement slot 7 for placing ordinary sample tubes and a second placement slot 8 for placing micro-volume blood collection tubes. The first placement slot 7 and the second placement slot 8 are arranged side by side on the drive mechanism. The first placement slot 7 is located on the side closer to the operator.

[0023] This invention, through the arrangement of two placement slots, enables the sample injection mechanism to not only inject samples from ordinary sample tubes but also from micro-volume blood collection tubes. It is understood that the ordinary sample tubes of this invention are generally used for routine or emergency sample collection from adults; the micro-volume blood collection tubes are generally used for sample collection from children or other special cases.

[0024] It is understood that the higher priority samples of this utility model include emergency samples or samples collected from children or other special samples using micro-blood collection tubes.

[0025] like Figure 2-4As shown, the drive mechanism includes a motor 9, a conveyor belt 10, a drive wheel 11, a transmission wheel 12, a slide rail 13, a slider 14, a support plate 15, and a support frame 16. The slider 14 is fixedly installed on the top of the support frame 16. One end of the slide rail 13 is slidably installed on the slider 14 and can move back and forth along the top of the support frame 16. The drive wheel 11 and the transmission wheel 12 are respectively installed on one side of the slide rail 13. The conveyor belt 10 is installed between the drive wheel 11 and the transmission wheel 12. The drive wheel 11 is fixed on the output shaft of the motor 9. The support plate 15 is fixedly installed on the top of the slide rail 13. One side of the conveyor belt 10 is fixed on the support plate 15. The first placement slot 7 and the second placement slot 8 are fixedly installed on one end of the support plate 15 near the support frame 16, and the motor 9 is located on one side of the other end of the support plate 15. The rotation of motor 9 can drive the conveyor belt 10 to rotate back and forth between the drive wheel 11 and the transmission wheel 12, thereby driving the support plate 15 fixed on one side of the conveyor belt 10 to slide back and forth on the slider 14, and then driving the first placement groove 7 and the second placement groove 8 on the support plate 15 to move back and forth along the support frame 16.

[0026] like Figure 5-8 As shown, a squeezing member 17 is rotatably mounted on the side of the first placement slot 7 facing the second placement slot 8; an elastic member is provided on the support frame 16 on the side of the squeezing member 17 away from the first placement slot 7. When the drive mechanism moves the sample placement slot towards the sampling position 4, the elastic member can press the squeezing member 17, so that the squeezing member 17 presses the sample tube 1 in the first placement slot 7, preventing the sample tube 1 in the first placement slot 7 from shaking or deviating from the sampling position 4, thereby affecting the sampling needle 5's sampling.

[0027] Furthermore, the extrusion member 17 includes an extrusion plate 18 rotatably mounted at the bottom of the first placement groove 7; an extrusion block 19 is provided on the top of the extrusion plate 18, and the extrusion block 19 can extend into the first placement groove 7; limiting platforms 20 are provided on both sides of the extrusion block 19, which can limit the distance of the extrusion block 19 extending into the first placement groove 7, so as to avoid damage to the sample tube 1 by extrusion. It can be understood that the movement distance of the extrusion block 19 facing the second placement groove 8 can be limited by the second placement groove 8. One end of the extrusion block 19 extending into the first placement groove 7 is provided as an arc-shaped convex surface 21. When the sample tube clamping device 6 clamps the sample tube 1 and puts it into the first placement groove 7, when the arc-shaped bottom surface of the sample tube 1 abuts against the arc-shaped convex surface 21, it can smoothly compress the extrusion block 19 to move, so as to facilitate the placement of the sample tube 1 into the first placement groove 7.

[0028] The elastic element includes a fixing plate 22 vertically fixed on the support frame 16; a fixing block 23 is horizontally installed on the top of the fixing plate 22 facing the first placement groove 7; both sides of the fixing block 23 are provided with through holes 24 communicating with the fixing plate 22; a guide rod 25 is slidably sleeved in the through hole 24; a blocking part 26 is fixed at one end of the guide rod 25 near the first placement groove 7, and the other end extends to the outside of the fixing plate 22; when the first placement groove 7 moves close to the blocking part 26, both blocking parts 26 can abut against the extruder 17, thereby squeezing the extrusion plate 18 on the first placement groove 7 to rotate into the first placement groove 7, and the extrusion block 19 on the extrusion plate 18 squeezes the sample tube 1 in the first placement groove 7; a baffle 27 is provided on the guide rod 25 between the fixing block 23 and the fixing plate 22; a spring 28 is sleeved on the guide rod 25 between the baffle 27 and the fixing plate 22.

[0029] When the drive mechanism moves the sample placement slot towards the sampling position 4, the squeezing plate 18 on one side of the first placement slot 7 can abut against the blocking part 26 on the guide rod 25. After the two abut against each other, the drive mechanism continues to move the sample placement slot towards the sampling position 4. The blocking part 26 presses against the squeezing plate 18, and the squeezing block 19 on the top of the squeezing plate 18 rotates into the first placement slot 7, thereby pressing the sample tube 1 in the first placement slot 7. Together with the side wall of the first placement slot 7, it clamps the sample tube 1, preventing the sample tube 1 in the first placement slot 7 from shaking, which would affect the sampling of the sampling needle 5. Secondly, in this utility model, the squeezing member 17 and the elastic member complete the clamping and fixing of the sample tube 1 in the first placement slot 7 from the side at the sampling position 4. When the sample tube 1 is put into the sample placement slot from top to bottom at the sampling position, the sample tube 1 is not clamped and fixed, which can avoid the friction between the sample tube wall and the side wall of the sample placement slot when the sample tube 1 is placed, thereby causing damage to the label on the sample tube 1.

[0030] Furthermore, rollers 29 are provided on both sides of the bottom of the first placement groove 7. The rollers 29 can rotate along the support frame 16 to reduce the resistance when the support plate 15 slides.

[0031] This utility model also discloses a sample analyzer, including the sample injection mechanism described above.

[0032] The above are merely embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model shall be included within the scope of the claims of this utility model pending approval.

Claims

1. A sample injection mechanism, characterized in that, include: Sample placement slot, used for placing sample tubes; The first injection position is used for injecting routine samples; The second injection position is used for injection of higher priority samples; The sampling position is used by the sampling needle to draw samples from the sample tube; The driving mechanism is used to drive the sample placement slot to move to the first injection position, the second injection position, or the aspiration position respectively, to complete the injection and aspiration operation of regular samples or high-priority samples.

2. The sample injection mechanism according to claim 1, characterized in that, The sample placement slot includes: The first placement slot is for placing ordinary sample tubes; The second placement slot is used for placing micro-volume blood collection tubes; The first placement slot and the second placement slot are arranged side by side on the drive mechanism.

3. The sample injection mechanism according to claim 2, characterized in that, The driving mechanism includes a motor, a conveyor belt, a drive wheel, a transmission wheel, a slide rail, a slider, a support plate, and a support frame. The slider is fixedly installed on the top of the support frame. One end of the slide rail is slidably installed on the slider, allowing it to move back and forth along the top of the support frame. The drive wheel and transmission wheel are respectively installed on one side of the slide rail. The conveyor belt is installed between the drive wheel and the transmission wheel. The drive wheel is fixed to the output shaft of the motor. The support plate is fixedly installed on the top of the slide rail. One side of the conveyor belt is fixed to the support plate. The first placement slot and the second placement slot are fixedly installed on one end of the support plate near the support frame, and the motor is located at the other end of the support plate.

4. The sample injection mechanism according to claim 3, characterized in that, An extrusion member is rotatably mounted on the side of the first placement slot facing the second placement slot; an elastic member is provided on the support frame of the extrusion member on the side away from the first placement slot.

5. A sample injection mechanism according to claim 4, characterized in that, The extrusion component includes an extrusion plate rotatably mounted at the bottom of a first placement slot; an extrusion block is provided on the top of the extrusion plate.

6. A sample injection mechanism according to claim 5, characterized in that, Limiting platforms are provided on both sides of the extrusion block.

7. A sample injection mechanism according to claim 5, characterized in that, The end of the extrusion block that extends into the first placement groove is configured with an arc-shaped convex surface.

8. A sample injection mechanism according to claim 4, characterized in that, The elastic element includes a fixed plate vertically fixed to a support frame; a fixed block is horizontally installed on the top of the fixed plate facing the first placement slot; both sides of the fixed block are provided with through holes communicating with the fixed plate; a guide rod is slidably sleeved in the through hole; a blocking part is fixed at one end of the guide rod near the first placement slot, and the other end extends to the outside of the fixed plate; a baffle is provided on the guide rod between the fixed block and the fixed plate; a spring is sleeved on the guide rod between the baffle and the fixed plate.

9. A sample injection mechanism according to claim 3, characterized in that, Rollers are also provided on both sides of the bottom of the first placement slot.

10. A sample analyzer, characterized in that, Includes the sample injection mechanism as described in any one of claims 1-9.

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