A biosafe blood cell analyzer

Abstract

The application relates to the technical field of blood cell analyzers, in particular to a biosafety blood cell analyzer, which comprises a sealing assembly used for sealing a punctured end of a blood test tube, the sealing assembly comprises a lead screw, the surface of the lead screw is connected in engagement with a sleeve, the sleeve is slidably connected with the inner wall of a cavity through a strip-shaped rod, the upper end of the sleeve is fixedly installed with an elastic telescopic rod, the upper end of the elastic telescopic rod is fixedly connected with a sealing gasket, a puncture needle is arranged below the sealing gasket and fixedly installed at the upper end of the sleeve. Through the cooperation of various components, the generation of the wall-hanging phenomenon can be prevented during sampling, aerosol can be prevented from being generated during sampling, and the accuracy of the detection result is ensured.

Description

Technical Field

[0001] This invention relates to the field of blood cell analyzer technology, specifically a biosafety blood cell analyzer. Background Technology

[0002] A blood cell analyzer, also known as a fully automated blood analyzer or blood cell counter, is a sophisticated medical device used for the rapid and automated analysis of blood samples. Primarily used in clinical laboratories, it provides detailed information about the quantity, morphology, and related indicators of various blood cell components, such as red blood cells, white blood cells, and platelets, through the analysis of small amounts of anticoagulated whole blood. It is a core tool for routine blood tests.

[0003] However, in the existing technology, when the liquid collection needle is inserted into the sample container for sampling, because the liquid collection needle directly punctures the inside of the sample container, it is easy for external air to enter the blood collection tube along with the puncture needle, thereby forming an aerosol, which causes contamination of the sample and affects the test results. Summary of the Invention

[0004] The purpose of this invention is to provide a biosafety blood cell analyzer to solve the problem mentioned in the background art where, during puncture sampling, air easily enters the blood test tube along with the puncture needle, easily forming aerosols, contaminating the blood, and affecting the test results.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a biosafety blood cell analyzer, comprising an analyzer body, wherein a placement cavity is formed on the surface of the analyzer body, and a limit guide rail is fixedly installed on the bottom surface of the placement cavity, and further comprising:

[0006] A sealing assembly for sealing the punctured end of a blood test tube, the sealing assembly including a lead screw, a sleeve engaged with the surface of the lead screw, and the sleeve slidingly engaging with the inner wall of a cavity via a strip rod, an elastic telescopic rod fixedly installed at the upper end of the sleeve, a sealing gasket fixedly connected to the upper end of the elastic telescopic rod, a puncture needle located below the sealing gasket, and the puncture needle fixedly installed at the upper end of the sleeve.

[0007] Furthermore, the analyzer body has an internal cavity, and a baffle is fixedly installed on the inner wall of the cavity. A partition is fixedly installed on the bottom surface of the cavity. Two sets of irregular grooves are symmetrically opened on the inner wall of the cavity. The irregular grooves have an L-shaped structure, and the long side of the irregular grooves is stepped.

[0008] Furthermore, the surface of the limiting guide rail is provided with a through hole, and the through hole is connected to the cavity.

[0009] Further, the lower end of the lead screw penetrates through the cavity and extends to the outside of the analyzer main body, and the lower end of the lead screw is fixedly installed with a driving motor.

[0010] Further, the puncture needle is communicated with a delivery pipe on one side.

[0011] Further, the anti-wall-hanging assembly further comprises a belt pulley set, one end of the belt pulley set is sleeved on the surface of the lead screw, the other end of the belt pulley set is rotatably connected with a driven rod through a damping bearing, the upper end of the driven rod is fixedly installed with a disc, the surface of the disc is fixedly installed with an extrusion block, one side of the extrusion block is provided with a horizontal plate, the horizontal plate is elastically connected with the inner wall of the cavity through the symmetrically arranged reset springs, two groups of limit rods are inserted into the inside of the horizontal plate, the ends of the two groups of limit rods are fixedly installed with clamping plates through limit blocks, the clamping plates are in sliding fit with the horizontal plate, a horizontal rod is fixedly installed on the side of the horizontal plate close to the disc, the surface of the horizontal rod is rotatably connected with a rotating drum, the surface of the rotating drum is extruded and fitted with a top block, and the top block is fixedly installed on the upper surface of the disc.

[0012] Further, the surface of the driven rod is fixedly installed with a stop rod, the stop rod and the stop block fixedly installed on the inner wall of the cavity are in the same horizontal plane, and the stop rod does not contact the stop block in the initial state.

[0013] Further, the two ends of the limit rod are respectively inserted into the inside of the two groups of special-shaped grooves, and the limit rod is in sliding fit with the inner wall of the special-shaped groove.

[0014] Further, the side close to each other of the two groups of clamping plates is symmetrically provided with a notch, and the surface of the notch is bonded with a flexible pad, and the side close to each other of the two groups of limit blocks is elastically connected with the inner wall of the horizontal plate through the connecting springs.

[0015] The technical scheme provided by the application has the following beneficial effects compared with the known prior art:

[0016] Firstly, the lead screw, the elastic expansion rod and the puncture needle are cooperated with each other, when the sample is taken, the driving motor drives the lead screw to rotate, the sleeve synchronously rises, the elastic expansion rod and the sealing pad fixedly installed on the upper end of the sleeve synchronously move upwards, the upper end of the sealing pad contacts the punctured end of the blood test tube, the punctured end of the blood test tube is sealed, the puncture needle punctures the blood test tube for sampling, the sample is not contaminated, and the accuracy of the detection result is ensured.

[0017] II. This invention, through the coordinated components such as pulley sets, horizontal plates, and top blocks, enables the synchronous rotation of the pulley sets fitted onto the lead screw surface during puncture needle sampling. This rotation causes the driven rod connected to the other end of the pulley sets to rotate, resulting in the synchronous rotation of the disc fixedly mounted on the upper end of the driven rod. This, in turn, causes the squeezing block to squeeze the horizontal plate and move it. Simultaneously, through the cooperation between the limiting rod and the irregular groove, the two sets of clamping plates move away from each other and clamp the blood tube as the horizontal plate moves. Then, when the squeezing block separates from the horizontal plate, the horizontal plate resets and, through the clamping plates, moves the blood tube directly above the through hole. At the same time, the top block contacts the rotating cylinder. With the continuous rotation of the driven rod, the horizontal plate, through the clamping plates, causes the blood tube to move up and down a short distance within the short side of the irregular groove, vibrating the blood tube and thus preventing it from sticking to the wall, ensuring that a sufficient amount of sample is collected. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the analyzer body of the present invention;

[0021] Figure 3 for Figure 2 A side view sectional diagram;

[0022] Figure 4 This is a schematic diagram of the overall structure of the irregular groove of the present invention;

[0023] Figure 5 This is a schematic diagram of the overall structure of the sealing assembly;

[0024] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 7 This is a schematic diagram showing the separation of the sealing gasket and sleeve structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the overall structure of the anti-wall-hanging component of the present invention;

[0027] Figure 9 for Figure 8 Enlarged schematic diagram of the structure at point B;

[0028] Figure 10 This is a schematic diagram of the internal structure of the horizontal plate of the present invention.

[0029] In the diagram: 1. Analyzer body; 101. Placement cavity; 102. Cavity; 103. Partition plate; 104. Irregular groove; 2. Limiting guide rail; 201. Through hole; 3. Sealing assembly; 301. Lead screw; 302. Sleeve; 303. Elastic telescopic rod; 304. Sealing gasket; 305. Puncture needle; 4. Anti-wall-hanging assembly; 401. Pulley assembly; 4011. Damping bearing; 402. Driven rod; 4021. Stop bar; 403. Disc; 404. Extrusion block; 405. Horizontal plate; 406. Limiting rod; 407. Clamping plate; 4071. Notch; 4072. Connecting spring; 408. Crossbar; 409. Rotary drum; 410. Top block. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] The present invention will be further described below with reference to embodiments.

[0032] Example: A biosafety blood cell analyzer, such as Figures 1-10 As shown, the analyzer includes an analyzer body 1. A placement cavity 101 is formed on the surface of the analyzer body 1 for placing a blood test tube containing a blood sample. An internal cavity 102 is formed inside the analyzer body 1. A partition 103 is fixedly installed on the bottom surface of the cavity 102, and a baffle is fixedly installed on the inner wall of the cavity 102. Figure 2 and attached Figure 3 By setting a partition 103, the cavity 102 is divided into front and rear parts; and a baffle is fixedly installed on the inner wall of the rear half of the cavity 102. The baffle is existing technology and has a rectangular structure. Due to the viewing angle, the baffle is not shown in the figure.

[0033] The inner wall of the cavity 102 is symmetrically provided with two sets of irregularly shaped grooves 104. The irregularly shaped grooves 104 have an L-shaped structure, and the long side of the irregularly shaped grooves 104 is stepped. Figure 4The long side of the special-shaped groove 104 is transversely arranged, the short side is vertically arranged, the long side and the short side of the special-shaped groove 104 are smoothly connected, and the long side of the special-shaped groove 104 is arranged in a stepped manner from back to front, that is, the long side of the special-shaped groove 104 is combined by a shallow groove and a deep groove, and the shallow groove and the deep groove are smoothly connected; by arranging the special-shaped groove 104, the guiding and limiting effects can be achieved, and by arranging the long side of the special-shaped groove 104, the clamping and conveying of the blood test tube by other components can be controlled.

[0034] The bottom surface of the placement cavity 101 is fixedly installed with a limiting guide rail 2. By arranging the limiting guide rail 2, the blood test tube containing the blood sample can be placed on the surface of the limiting guide rail 2, and the blood test tube is limited, and the limiting guide rail 2 can guide the blood test tube when the blood test tube moves. The surface of the limiting guide rail 2 is throughly provided with a through hole 201, and the through hole 201 is in communication with the cavity 102. By arranging the through hole 201, the end of the blood test tube can be moved to the upper side of the through hole 201, so as to facilitate subsequent blood sampling.

[0035] The accompanying drawings are combined with the above Figure 1 The accompanying drawings are combined with the above Figure 10 The sealing assembly 3 is further arranged to seal the punctured end of the blood test tube, so as to seal the punctured end of the blood test tube, avoid air entering the blood test tube during puncture sampling to form aerosol, ensure that the sample is not contaminated, and ensure the accuracy of the detection result. The sealing assembly 3 comprises a lead screw 301, the lower end of the lead screw 301 penetrates through the cavity 102 and extends to the outside of the analyzer main body 1, and the lower end of the lead screw 301 is fixedly installed with a driving motor. By arranging the lead screw 301 and the driving motor, the lead screw 301 can be rotated under the action of the driving motor, so as to drive the movement of the components.

[0036] The surface of the lead screw 301 is engagedly connected with a sleeve 302, and the sleeve 302 is slidingly matched with the inner wall of the cavity 102 through a strip-shaped rod. By arranging the sleeve 302, the sleeve 302 can be lifted under the action of the strip-shaped rod when the lead screw 301 rotates. It is worth noting that the strip-shaped rod is symmetrically fixedly installed on the surface of the sleeve 302, and can limit the movement of the sleeve 302. The upper end of the sleeve 302 is fixedly installed with an elastic telescopic rod 303, which can be connected by arranging the elastic telescopic rod 303. The upper end of the elastic telescopic rod 303 is fixedly connected with a sealing gasket 304, which is arranged below the through hole 201. The sealing gasket 304 can be in contact with the punctured end of the blood test tube to seal the punctured end of the blood test tube, so as to avoid the phenomenon of aerosol of the sample.

[0037] The lower part of the sealing gasket 304 is provided with a puncture needle 305, and the puncture needle 305 is fixedly installed at the upper end of the sleeve 302. By arranging the puncture needle 305, the inside of the blood test tube can be punctured to take samples. The puncture needle 305 is communicated with a delivery pipe on one side, which is used to deliver the sample to the detection mechanism. It is worth noting that the end of the puncture needle 305 is connected with a negative pressure module. The negative pressure module is a prior art and can generate suction. On the one hand, the sample in the blood test tube can be sucked through the puncture needle 305, and the air in the puncture needle 305 can also be sucked, so that the puncture needle 305 will not bring air into the inside of the blood test tube when puncturing. That is, when the upper end of the puncture needle 305 pierces into the inside of the sealing gasket 304, the negative pressure module starts to work.

[0038] The drawings are attached Figure 1 The drawings are attached Figure 10 The anti-wall hanging assembly 4 is also included to prevent the blood test tube from hanging on the wall. The anti-wall hanging assembly 4 can prevent the phenomenon of hanging on the wall, so that the blood can be concentrated in the lower part of the blood test tube, and enough sample can be taken for detection. The anti-wall hanging assembly 4 includes a belt pulley set 401, and one end of the belt pulley set 401 is sleeved on the surface of the lead screw 301. By arranging the belt pulley set 401, the function of kinetic energy transmission can be achieved. The other end of the belt pulley set 401 is rotatably connected with a driven rod 402 through a damping bearing 4011. By arranging the driven rod 402, the other end of the belt pulley set 401 can be synchronously rotated. It is worth noting that by arranging the damping bearing 4011, when the driven rod 402 is hindered, the belt pulley set 401 can rotate alone without driving the driven rod 402 to continue to rotate.

[0039] The surface of the driven rod 402 is fixedly installed with a blocking rod 4021, and the blocking rod 4021 is in the same horizontal plane as the blocking block fixedly installed in the inner wall of the cavity 102. The blocking rod 4021 is not in contact with the blocking block in the initial state. By arranging the blocking rod 4021, the blocking rod 4021 can be in contact with the blocking block fixedly installed in the inner wall of the cavity 102, so as to block the driven rod 402, so that the driven rod 402 no longer synchronously rotates with the other end of the belt pulley set 401. The upper end of the driven rod 402 is fixedly installed with a disc 403, and the surface of the disc 403 is fixedly installed with an extrusion block 404. By arranging the disc 403 and the extrusion block 404, the disc 403 and the extrusion block 404 can synchronously rotate with the driven rod 402, and the extrusion block 404 can extrude the parts.

[0040] One side of the extrusion block 404 is provided with a horizontal plate 405, and the horizontal plate 405 is elastically connected with the inner wall of the cavity 102 through the symmetrically arranged reset springs. The drawings are attached Figure 1 The drawings are attached Figure 2By setting the horizontal plate 405, it can move forward under the extrusion of the extrusion block 404 and stretch the reset spring, so that the reset spring generates a reaction force, which is convenient for driving the horizontal plate 405 to reset; the inside of the horizontal plate 405 is inserted with two groups of symmetrically arranged limiting rods 406, the two ends of the limiting rod 406 are respectively inserted into the inside of the two groups of special-shaped grooves 104, and the limiting rod 406 and the inner wall of the special-shaped groove 104 are in sliding fit, by setting the limiting rod 406, it can guide and limit the movement of the horizontal plate 405, and through the cooperation of the limiting rod 406 and the long side of the special-shaped groove 104, the limiting rod 406 can drive other parts to move relatively or move away from each other;

[0041] Wherein, the ends of the two groups of limiting rods 406 are fixedly installed with clamping plates 407 through limiting blocks, and the clamping plates 407 and the horizontal plate 405 are in sliding fit, by setting the clamping plate 407, it can clamp the blood test tube and drive the blood test tube to move; that is, when the extrusion block 404 rotates with the disc 403, it will first extrude the horizontal plate 405 to move forward, and the horizontal plate 405 will drive the limiting rod 406 to move in the long side of the special-shaped groove 104, because the long side of the special-shaped groove 104 is arranged in a stepped manner, therefore, the clamping plates 407 will move away from each other during the forward movement of the horizontal plate 405, so as to clamp the blood test tube;

[0042] Wherein, the side close to each other of the two groups of clamping plates 407 is symmetrically provided with notches 4071, and the surface of the notches 4071 is bonded with flexible pads, by setting the notches 4071 and bonding the flexible pads on the surface of the notches 4071, it can be adapted to the surface of the blood test tube, clamp the blood test tube, and at the same time, the flexible pad can also play a buffering role when the blood test tube is clamped; the side close to each other of the two groups of limiting blocks is elastically connected with the inner wall of the horizontal plate 405 through connecting springs 4072, by setting the connecting spring 4072, it can drive the two groups of clamping plates 407 to move away from each other through the reaction force generated by the deformation of the connecting spring 4072 when the limiting rod 406 moves along the long side of the special-shaped groove 104; it is worth noting that the connecting spring 4072 is in a compressed state in the initial state, only when the limiting rod 406 moves from the shallow groove to the deep groove, the compressed connecting spring 4072 begins to reset;

[0043] The side close to the disc 403 of the horizontal plate 405 is fixedly provided with a horizontal rod 408, and the surface of the horizontal rod 408 is rotationally connected with a rotating drum 409. The horizontal rod 408 and the rotating drum 409 can cooperate with other parts to drive the horizontal plate 405 to lift and vibrate. The surface of the rotating drum 409 is extrudedly provided with a top block 410, and the top block 410 is fixedly installed on the upper surface of the disc 403. When the clamping plate 407 clamps and resets the blood test tube, the top block 410 will start to extrude the rotating drum 409, so that the horizontal plate 405 drives the limiting rod 406 to reciprocate in the short side of the special-shaped groove 104, and the blood test tube is driven by the clamping plate 407 to vibrate synchronously, so that the blood test tube is prevented from being hung on the wall.

[0044] Specifically, when the blood sample is sampled, the driving motor is started to drive the lead screw 301 to rotate, and the belt pulley set 401 is synchronously rotated, the belt pulley set 401 drives the driven rod 402 to rotate, the disc 403 and the extrusion block 404 at the end of the driven rod 402 also rotate and start to extrude the horizontal plate 405 to move forward and stretch the reset spring to deform. When the horizontal plate 405 moves, the limiting rod 406 moves synchronously in the long side of the special-shaped groove 104. When the limiting rod 406 moves from the shallow groove in the long side to the deep groove, the spring 4072 in the compressed state starts to reset, so that the limiting rod 406 starts to enter the deep groove, and at the same time, the two sets of clamping plates 407 are driven to move away from each other, and the blood test tube is placed between the two notches 4071. When the extrusion block 404 is separated from the horizontal plate 405, the reaction force generated by the deformation of the reset spring drives the horizontal plate 405 to return to the original position. During the process of returning to the original position of the horizontal plate 405, that is, during the process of moving the limiting rod 406 from the deep groove of the special-shaped groove 104 to the shallow groove, the clamping plate 407 clamps the blood test tube through the notch 4071 on the surface and drives it to move to the upper side of the through hole 201.

[0045] When the blood test tube moves to the upper side of the through hole 201, the top block 410 starts to extrude the rotating drum 409 as the driven rod 402 continues to rotate, so that the rotating drum 409 and the horizontal rod 408 drive the horizontal plate 405 to move up and down in the short side of the special-shaped groove 104, so that the clamping plate 407 can drive the blood test tube to move up and down and vibrate synchronously, thereby preventing the blood from being hung on the wall. After the top block 410 is separated from the rotating drum 409, the stop rod 4021 installed on the surface of the driven rod 402 starts to contact the stop block, blocks the driven rod 402, and ensures that the driven rod 402 will not continue to rotate with the belt pulley set 401.

[0046] When the screw rod 301 rotates, the sleeve 302 connected with the screw rod 301 starts to move up synchronously, and the sealing pad 304 is driven to move up synchronously by the elastic telescopic rod 303, so that the upper end of the sealing pad 304 starts to contact the punctured end of the blood test tube, and the punctured end of the blood test tube is sealed. When the puncture needle 305 penetrates into the sealing pad 304, the negative pressure module starts to work, and the gas in the puncture needle 305 is sucked and discharged, so that when the puncture needle 305 penetrates into the blood test tube for sampling, no gas enters the inside of the blood test tube, which ensures that enough sample is taken and the accuracy of the detection result is ensured.

[0047] It is worth noting that, due to the engagement between the screw rod 301 and the sleeve 302, in order to realize the contact between the upper end of the sealing pad 304 and the punctured end of the blood test tube, the screw rod 301 needs to rotate for several turns, and the driven rod 402 is hindered from rotating within one turn, so that when the blood test tube moves to the upper end of the through hole 201, the sealing pad 304 cannot contact the punctured end of the blood test tube, thereby realizing the continuity of the function.

[0048] After the sampling is completed, the driving motor is reversed, so that the horizontal plate 405 drives the clamping plate 407 and the blood test tube to vibrate again, the residual blood is concentrated to the punctured end of the blood test tube, and then the blood test tube is moved out by moving the horizontal plate 405 through the extrusion block 404.

[0049] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A biosafety blood cell analyzer, comprising an analyzer main body (1), a placing cavity (101) is opened on the surface of the analyzer main body (1), characterized in that: The inside of the analyzer body (1) is provided with a cavity (102), and the inner wall of the cavity (102) is fixedly installed with a stop block, the bottom surface of the cavity (102) is fixedly installed with a partition plate (103), the inner wall of the cavity (102) is symmetrically provided with two groups of special-shaped grooves (104), the special-shaped grooves (104) are in L-shaped structure, and the long side of the special-shaped groove (104) is provided in a stepped manner, the bottom surface of the placement cavity (101) is fixedly installed with a limiting guide rail (2), and the limiting guide rail (2) is further provided with: A sealing assembly (3) for sealing the puncture end of the blood test tube, the sealing assembly (3) comprises a lead screw (301), the surface of the lead screw (301) is engagedly connected with a sleeve (302), the sleeve (302) is slidably connected with the inner wall of the cavity (102) through a strip-shaped rod, the upper end of the sleeve (302) is fixedly installed with an elastic telescopic rod (303), the upper end of the elastic telescopic rod (303) is fixedly connected with a sealing gasket (304), the lower side of the sealing gasket (304) is provided with a puncture needle (305), and the puncture needle (305) is fixedly installed on the upper end of the sleeve (302); Further comprising an anti-wall-hanging assembly (4) for preventing the blood test tube from being hung on the wall, the anti-wall-hanging assembly (4) comprises a belt pulley group (401), one end of the belt pulley group (401) is sleeved on the surface of the lead screw (301), the other end of the belt pulley group (401) is rotatably connected with a driven rod (402) through a damping bearing (4011), the surface of the driven rod (402) is fixedly installed with a stop rod (4021), the stop rod (4021) is in the same horizontal plane as the stop block fixedly installed on the inner wall of the cavity (102), and the stop rod (4021) is not in contact with the stop block in the initial state, the upper end of the driven rod (402) is fixedly installed with a disc (403), the surface of the disc (403) is fixedly installed with a pressing block (404), one side of the pressing block (404) is provided with a horizontal plate (405), the horizontal plate (405) is elastically connected with the inner wall of the cavity (102) through the symmetrically arranged reset springs, the inside of the horizontal plate (405) is inserted with two groups of symmetrically arranged limiting rods (406), the two ends of the limiting rod (406) are respectively inserted into the inside of the two groups of special-shaped grooves (104), and the limiting rod (406) is slidably connected with the inner wall of the special-shaped groove (104), the ends of the two groups of limiting rods (406) are fixedly installed with clamping plates (407) through limiting blocks, the clamping plates (407) are slidably connected with the horizontal plate (405), and the side of the horizontal plate (405) close to the disc (403) is fixedly installed with a horizontal rod (408), the surface of the horizontal rod (408) is rotatably connected with a rotating cylinder (409), the surface of the rotating cylinder (409) is extrudedly connected with a top block (410), and the top block (410) is fixedly installed on the upper surface of the disc (403).

2. A biosafety blood cell analyzer according to claim 1, characterized in that: The surface of the limiting guide rail (2) is provided with a through hole (201), and the through hole (201) is communicated with the cavity (102).

3. A biosafety blood cell analyzer according to claim 1, wherein: The lower end of the lead screw (301) penetrates through the cavity (102) and extends to the outside of the analyzer main body (1), and the lower end of the lead screw (301) is fixedly installed with a driving motor.

4. The biological safety blood cell analyzer according to claim 1, wherein: The puncture needle (305) is communicated with a delivery pipe on one side.

5. The bio-safe blood cell analyzer of claim 1, wherein: The two groups of clamping plates (407) are symmetrically provided with notches (4071) on the side close to each other, and the surface of the notches (4071) is bonded with flexible pads, and the two groups of limiting blocks are elastically connected with the inner wall of the horizontal plate (405) on the side close to each other through connecting springs (4072).

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