Isolated blood sampling device for cell detection and use method
By designing a blood sampling device with a drive rod and a rocking turntable, the problems of reduced cell activity and test tube shaking during the static process of blood samples are solved, achieving stable clamping and buffering protection of the test tube, and ensuring the accuracy and safety of the test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WUHAN KANGSHENGDA MEDICAL LAB CO LTD
- Filing Date
- 2026-02-05
- Publication Date
- 2026-04-10
AI Technical Summary
Existing blood sampling devices lack optimized designs for blood samples in a static state, leading to reduced cell activity and sample agglutination. Furthermore, the test tube fixation structure is unreasonable, making the test tubes prone to shaking and breakage.
An isolated blood sampling device for cell detection was designed, comprising a drive rod, a connecting rod, a rocking turntable, and a buffer assembly. The rocking turntable is driven by a control motor to reciprocate, and combined with adjustable clamps and buffer rods, it achieves stable clamping and buffer protection of the test tube.
This effectively avoids the reduction of cell activity and sample aggregation in blood samples during prolonged standing, ensures the stable clamping of test tubes, prevents damage and leakage, and improves the accuracy and safety of testing.
Smart Images
Figure CN121823015A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical devices, in particular to a blood sampling device for cell detection in isolation and a use method thereof. BACKGROUND
[0002] In the field of clinical medical detection, the collection, transportation and pre-treatment of blood samples are key links to ensure the accuracy of detection results. After blood samples are collected, they often need to be transported in batches to a detection laboratory or wait for subsequent detection procedures inside the laboratory. In this process, a special blood sampling device is usually used to store and transport test tubes containing blood samples to achieve orderly management of blood samples, avoid sample confusion or contamination, and provide a foundation for the smooth development of subsequent detection work.
[0003] However, the existing blood sampling device still has defects in actual application. On the one hand, most of the existing devices only have simple storage function and lack optimization design for the static state of blood samples. During the long-time static state of batch transportation or waiting for detection of blood samples, cell activity is easily reduced and samples are easily agglomerated, which directly interferes with the accuracy of subsequent detection indicators and causes deviation of detection results. On the other hand, the fixing structure of the existing device for test tubes is not reasonable and lacks a self-adaptive buffer clamping mechanism. During the insertion of the test tube into the bracket and the transportation of the device, the test tube is easily shaken to a large extent, causing the test tube to collide with the inner wall of the bracket, which not only easily causes the test tube to be damaged, but also causes blood samples to leak and be contaminated. In severe cases, it can even cause sample damage and lead to major medical accidents, and also increases the loss cost of medical consumables and the work burden of medical staff.
[0004] Therefore, the present application designs a blood sampling device for cell detection in isolation and a use method to solve the above problems. SUMMARY
[0005] The present application aims to provide a blood sampling device for cell detection in isolation and a use method to solve the problems of the existing blood sampling device in the background art, which has simple storage function and lacks optimization design for the static state of blood samples, and the fixing structure of the device for test tubes is not reasonable and lacks a self-adaptive buffer clamping mechanism.
[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:
[0007] The utility model provides a blood sampling device for isolated cell detection, including the storage box, the symmetry fixed mounting of two rotating shafts is arranged to one side of the storage box, the top of the storage box is equipped with the top cover, the storage box is connected with the top cover through rotating shaft, the other side of the storage box is fixedly connected two lock catch respectively, the one side of the top cover is fixedly installed two lock hooks respectively in the position corresponding with two lock catch, the inner bottom of the storage box is fixedly installed the shell, the one side of the shell is fixedly installed control motor, the inner bottom of the storage box is rotatably connected with the swing support through the rotating shaft, the shell cover is connected outside the swing support, the middle position of swing support is fixedly connected with two fixed plates respectively, rotatably connected with the rotating block between two fixed plates, the center position of rotating block is fixedly installed the connecting rod, the inner wall of the both sides of the shell is rotatably connected with two drive rods respectively, and the two drive rods are all the design of bending, and the direction of two drive rods is opposite, and the end of two drive rods is rotatably connected with the both ends of connecting rod, and the output of control motor is connected with one of drive rods, the top end of swing support is fixedly connected with the support disc, the top of support disc is fixedly connected with the swing carousel, the top of swing carousel is symmetrically equipped with two groups of mounting assemblies on its side edge, and the mounting assembly includes sleeve.
[0008] As a further scheme of the utility model, the sleeve is fixedly connected with the swing carousel, four sleeve shells are fixedly installed uniformly and equidistantly at the position close to the top end of the sleeve, a sliding rod is slidably connected in the sleeve shell, a clamping block is fixedly connected with one end of the sliding rod towards the inside of the sleeve, the side of the clamping block towards the top is of inclined design, a return spring is sleeved on the outer wall of the sliding rod, and a top plate is arranged above the swing carousel.
[0009] As a further scheme of the utility model, four support rods are fixedly connected with the four corners of the top plate respectively, the positions of the four support rods correspond to the positions of the four mounting assemblies respectively, a short rod is fixedly connected with the bottom end of the support rod, the diameter of the short rod is less than the diameter of the support rod, a connecting block is fixedly connected with the bottom end of the short rod, the side of the connecting block towards the bottom is of inclined design, a sliding block is slidably connected with the outer wall of the short rod, the side of the sliding block towards the top is of inclined design, the top plate is movably connected with the swing carousel through the mounting assembly, the support rod and the connecting block, a plurality of fixing assemblies are arranged uniformly and equidistantly above the top plate, and the fixing assembly comprises a spherical shell.
[0010] As a further scheme of the present application, the circular shell is fixedly connected with the top plate, the bottom of the circular shell is fixedly connected with a bottom disc, a plurality of limiting grooves are formed in the upper portion of the bottom disc, the plurality of limiting grooves are distributed radially with the center of the bottom disc as the center and are uniformly arranged in the circumferential direction, a plurality of clamping blocks are arranged above the bottom disc, the plurality of clamping blocks are distributed in a petal shape, limiting blocks are fixedly connected to the lower portion of the clamping blocks, and the plurality of clamping blocks are respectively slid in the plurality of limiting grooves through the plurality of limiting blocks.
[0011] As a further scheme of the present application, the clamping blocks are fixedly connected with guide rods above, a guide disc is rotationally connected to the inside of the circular shell above the clamping blocks, a plurality of arc-shaped guide grooves are uniformly formed in the guide disc, the plurality of guide rods respectively penetrate the plurality of guide grooves, a handle is fixedly connected to one side of the guide disc, and a hollow groove is formed in the position corresponding to the guide disc on the outside of the circular shell.
[0012] As a further scheme of the present application, the handle penetrates the hollow groove and slides in the hollow groove, an arc-shaped rod is fixedly connected in the hollow groove, the arc-shaped rod penetrates the handle, a compression spring is sleeved on the outer wall of the arc-shaped rod, two L-shaped supports are symmetrically fixedly connected to the lower portion of the top plate near the positions of the two sides, a base is fixedly connected between the two L-shaped supports, a plurality of placement grooves are equidistantly formed in the upper portion of the base, and the positions of the plurality of placement grooves correspond to the positions of the plurality of fixed assemblies.
[0013] As a further scheme of the present application, the placement grooves are provided with a buffer assembly, the buffer assembly comprises a bottom shell, the bottom shell is fixedly connected with the base, a stand is fixedly installed at the central position in the inside of the bottom shell, four groups of transverse rods are respectively fixedly connected to the outside of the stand at four equally divided points, the number of transverse rods in each group is two, a buffer rod is slidably connected to the outer wall of each group of transverse rods, the buffer rod is designed in an open form by being bent at the middle portion, a sliding groove is formed in the upper portion of the bottom shell at a position corresponding to the buffer rod, the buffer rod penetrates the sliding groove, a buffer spring is sleeved on the outer wall of the upper transverse rod in each group of transverse rods, and the buffer spring is located on the outside of the buffer rod.
[0014] A method of using an isolated blood sampling device for cell detection includes the following steps: When using the device, first operate the latch on the side of the storage box to separate the latch from the corresponding hook on the top cover. Then, flip the top cover open. Next, take out the top plate, L-shaped bracket, and base inside the storage box. During operation, press down on the top plate. The top plate moves the support rods at its four corners downwards simultaneously. The support rods move the short rods at the bottom downwards accordingly. At this time, the slider on the outer wall of the short rod will be blocked by the inner locking block of the sleeve in the installation assembly, and then slide upwards on the outer wall of the short rod. When the slider slides to the connection between the support rod and the short rod, the support rod continues to move downwards, which will drive the slider. As the slider moves downwards, its inclined surface contacts and presses against the inclined surface of the locking block, causing the locking block to retract into the housing. Simultaneously, the retraction of the locking block drives the sliding rod to slide within the housing and presses against the return spring sleeved on the outer wall of the sliding rod. After the slider has completely passed through the locking block, the elastic force of the return spring causes the sliding rod and the locking block to return to their original positions. Then, the top plate is pulled upwards. As the top plate slides upwards, the slider first slides against the outer wall of the short rod and gradually comes into contact with the connecting block. As the top plate continues to be pulled upwards, the inclined surface of the connecting block contacts and presses against the bottom surface of the locking block again, causing the locking block to retract into the housing again until the connecting block completely passes through the locking block. Then, the top plate, support rod, and base can be removed as a whole.
[0015] After removal, place the assembly in a suitable position. When placing the test tube containing the blood sample, rotate the handle on the fixing component. The handle slides within the empty slot while simultaneously sliding against the outer wall of the arc-shaped rod, compressing the compression spring and causing the guide plate inside the cylindrical shell to rotate. During the rotation of the guide plate, the arc-shaped guide groove guides the guide rod passing through it, causing several petal-shaped clamping blocks to slide synchronously within the limiting groove of the base through the limiting block below, thereby widening the distance between the clamping blocks. Then, insert the test tubes containing the blood sample one by one into the corresponding fixing components. During the insertion process, the bottom of the test tube will contact the buffer group in the base placement slot. When the test tube comes into contact with the bent part of the buffer rod, the bottom of the test tube exerts a squeezing force on the buffer rod, causing the buffer rod to slide on the outer wall of the crossbar. During the sliding process, the buffer rod will squeeze the buffer spring sleeved on the outer wall of the upper crossbar. The buffer spring will undergo elastic deformation and generate a reverse elastic force, which will drive the buffer rod to form an elastic support for the bottom of the test tube, thus achieving buffer protection during the insertion of the test tube. After the test tube is placed, release the handle. The guide plate will rotate in the opposite direction under the rebound force of the compression spring. Through the cooperation of the guide groove and the guide rod, it will drive several clamping blocks to move towards the center synchronously along the limiting groove until the clamping blocks are in contact with the outer wall of the test tube, thus fixing the test tube. The compression spring will limit the handle to prevent the guide plate from rotating arbitrarily.
[0016] After the test tube is fixed, reassemble the top plate, support rod, and base back onto the top of the swing turntable. During assembly, press down on the top plate to move the support rod, short rod, and connecting block downwards simultaneously. The inclined surface of the connecting block contacts the inclined surface of the locking block inside the sleeve and squeezes the locking block, causing the locking block to retract into the sleeve and compress the return spring. When the connecting block has completely passed through the locking block, the return spring restores its elastic deformation, pushes the slide rod to reset the locking block, and the locking block enters the sleeve, thus connecting the support rod and the sleeve. Then close the top cover and engage the locking hook on the top cover with the locking buckle on the side of the storage box to complete the closure of the storage box.
[0017] After the device is started, the control motor begins to work, and the output end of the control motor drives the drive rod connected to it to rotate. Since both drive rods are bent and face opposite directions, and the ends of the two drive rods are respectively rotatably connected to the two ends of the connecting rod at the center of the rotating block, when one drive rod rotates, it will drive the other drive rod to rotate synchronously in the opposite direction through the connecting rod. During the rotation of the connecting rod, the rotating block is driven to rotate between the two fixed plates, which in turn drives the entire swing bracket to swing back and forth around the rotating connection point at the bottom of the storage box as the axis. The support plate at the top of the swing bracket drives the swing turntable to swing back and forth, and the swing turntable drives the top plate and base, which are fixed with test tubes, to swing back and forth synchronously. This avoids the situation where blood samples are left to stand for a long time, which may lead to a decrease in cell activity and sample agglutination, thus ensuring the testing quality of blood samples.
[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, by setting up a drive rod, a connecting rod, a rotating block, and a swing turntable, allows the device to rotate after startup. The control motor drives the connected drive rod to rotate. Utilizing the opposing bending configuration of the two drive rods, the actively rotating drive rod pulls the other drive rod through the connecting rod, forming a synchronous, opposite rotational motion. During the rotation of the connecting rod, the rotating block reciprocates between two fixed plates, causing the swing bracket to reciprocate within the storage box. The support plate at the top of the swing bracket synchronously drives the swing turntable to rotate, ultimately causing the blood sample tubes held above the swing turntable to follow suit. In this way, the test tubes containing blood samples can reciprocate, avoiding adverse conditions such as cell viability decay and sample coagulation caused by long-term static placement of blood samples, thus ensuring the accuracy of subsequent test data. 2. This invention, through the installation components, allows for assembly where external force is applied to move the top plate, support rod, bottom short rod, and connecting block downwards. The inclined end face of the connecting block contacts and compresses the inclined end face of the locking block inside the sleeve, pushing the locking block and sliding rod into the sleeve. Simultaneously, the return spring on the outside of the sliding rod is compressed. Once the connecting block has completely passed through the locking block, the return spring releases its elastic potential energy, pushing the sliding rod and locking block back to their initial positions, thus achieving the locking and fixing of the top plate and the swaying turntable. For disassembly, the top plate is first pressed down, causing the support rod and short rod to move downwards. The slider on the outside of the short rod is then engaged. The blocking effect of the block causes the slider to slide upward along the outer wall of the short rod to the connection point between the support rod and the short rod. Then, the support rod continues to move downward, causing the slider to move downward synchronously. The inclined surface of the slider and the inclined surface of the locking block squeeze each other, causing the locking block to contract. Then, the top plate is lifted upward. The slider first slides along the outer wall of the short rod and gradually fits with the connecting block. When the lifting continues, the connecting block squeezes the locking block and contracts again until the connecting block completely passes the locking block. The top plate and its associated components can then be removed as a whole. This component can complete the quick assembly and disassembly of the top plate and the swing turntable without the need for external auxiliary tools, which makes it convenient to put in and take out test tubes containing blood samples. The operation process is simple and efficient. 3. This invention, by setting up a fixing component, allows the throttle to slide along the empty groove when the test tube is placed. Simultaneously, the throttle slides against the outer wall of the arc-shaped rod, compressing the spring and causing the guide plate inside the circular shell to rotate. The guide groove on the guide plate pulls the guide rod, causing multiple clamping blocks to slide synchronously within the limiting groove of the base plate via the bottom limiting block, thus widening the distance between the clamping blocks. After inserting the test tube, releasing the throttle causes the spring force to drive the throttle and guide plate to rotate in opposite directions. Through the cooperation of the guide groove and guide rod, multiple clamping blocks move synchronously towards the center along the limiting groove until they adhere to the outer wall of the test tube and are fixed. In this way, the synchronous opening and closing of multiple clamping blocks is achieved, forming a uniform clamping force on the test tube from multiple directions. Furthermore, the adjustable range of the clamping block distance is flexible, adapting to blood sample test tubes of different diameters, thus improving the applicability of the device. 4. This invention, by incorporating a buffer assembly, ensures that during the insertion of the blood sample tube into the placement slot, the bottom of the tube contacts the bent portion of the buffer rod, generating a squeezing force that drives the buffer rod to slide along the horizontal bar. Simultaneously, this squeezes the buffer spring on the outer wall of the upper horizontal bar, causing the buffer spring to undergo elastic deformation and generate a reverse elastic force. This provides elastic support to the bottom of the tube through the buffer rod. In this way, the impact force generated during tube insertion can be mitigated, preventing damage or sample leakage caused by excessive instantaneous force. The elastic deformation of the buffer spring can be adaptively adjusted according to the weight of the tube, adapting to the buffering needs of different tube sizes and improving the versatility of the device. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments 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.
[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the internal structure of the storage box of the present invention;
[0022] Figure 3 This is a schematic diagram of the connection between the swing turntable, the top plate, and the base of the present invention;
[0023] Figure 4 This is a schematic diagram of the connection between the top plate and the base of the present invention;
[0024] Figure 5 This is a schematic diagram of the connection between the swing turntable and the mounting components of the present invention;
[0025] Figure 6 This is a schematic diagram of the connection between the swing bracket and the connecting rod of the present invention;
[0026] Figure 7 This is a schematic diagram of the structure of the mounting component of the present invention;
[0027] Figure 8 This is a schematic diagram of the structure of the fixing component of the present invention;
[0028] Figure 9 This is a schematic diagram of the structure of the buffer component of the present invention.
[0029] The components represented by each number in the attached diagram are listed below: 1. Storage box; 2. Rotating shaft; 3. Top cover; 4. Lock; 5. Lock hook; 6. Outer shell; 7. Control motor; 8. Swing bracket; 9. Fixing plate; 10. Rotating block; 11. Connecting rod; 12. Drive rod; 13. Support plate; 14. Swinging turntable; 15. Mounting assembly; 1501. Sleeve; 1502. Outer shell; 1503. Slide rod; 1504. Locking block; 1505. Return spring; 16. Top plate; 17. Support rod; 18. Short rod; 19. Connecting block; 20. Slider; 21. Fixing component; 2101. Round shell; 2102. Chassis; 2103. Limiting groove; 2104. Clamping block; 2105. Limiting block; 2106. Guide rod; 2107. Guide plate; 2108. Guide groove; 2109. Thruster; 22. Empty groove; 23. Arc rod; 24. Compression spring; 25. L-shaped bracket; 26. Base; 27. Placement groove; 28. Buffer component; 2801. Bottom shell; 2802. Column; 2803. Crossbar; 2804. Buffer rod; 2805. Slide groove; 2806. Buffer spring. Detailed Implementation
[0030] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0031] Please see Figures 1-9 The present invention provides a technical solution:
[0032] An isolated blood sampling device for cell detection includes a storage box 1. Two rotating shafts 2 are symmetrically fixedly installed on one side of the storage box 1. A top cover 3 is provided on the top of the storage box 1. The storage box 1 is rotatably connected to the top cover 3 through the rotating shafts 2. Two latches 4 are fixedly connected to the other side of the storage box 1. Two locking hooks 5 are fixedly installed on one side of the top cover 3 at positions corresponding to the two latches 4.
[0033] A housing 6 is fixedly installed on the inner bottom of the storage box 1, and a control motor 7 is fixedly installed on one side of the housing 6. A swing bracket 8 is rotatably connected to the inner bottom of the storage box 1 via a rotating shaft, and the housing 6 covers the swing bracket 8. Two fixed plates 9 are fixedly connected to the middle of the swing bracket 8, and a rotating block 10 is rotatably connected between the two fixed plates 9. A connecting rod 11 is fixedly installed at the center of the rotating block 10. Two drive rods 12 are rotatably connected to the inner walls on both sides of the housing 6. Both drive rods 12 are bent, and their orientations are opposite. The ends of the two drive rods 12 are rotatably connected to the two ends of the connecting rod 11. The output end of the control motor 7 is connected to one of the drive rods 12. A support plate 13 is fixedly connected to the top of the swing bracket 8, and a swing turntable 14 is fixedly connected above the support plate 13. Two sets of mounting components 15 are symmetrically arranged on the side above the swing turntable 14.
[0034] During operation, the control motor 7 drives the connected drive rod 12 to rotate. Since the two drive rods 12 have a relatively opposite bending structure, when the two drive rods 12 rotate, they will drive the rotating block 10 to rotate between the two fixed plates 9 through the connecting rod 11. This will drive the swing bracket 8 to swing around the rotating shaft at the bottom of the storage box 1. The support plate 13 at the top of the swing bracket 8 will simultaneously drive the swing turntable 14 to swing, so that the blood sample tubes carried on the swing turntable 14 can swing back and forth, avoiding problems such as reduced cell activity and sample agglutination caused by prolonged static placement of blood samples.
[0035] As a further embodiment of the present invention, the mounting assembly 15 includes a sleeve 1501, which is fixedly connected to the rocking turntable 14. Four housings 1502 are fixedly installed on the sleeve 1501 at uniform and equidistant positions near its top. A sliding rod 1503 is slidably connected inside the housing 1502. A locking block 1504 is fixedly connected to one end of the sliding rod 1503 facing the inside of the sleeve 1501. The side of the locking block 1504 facing upward is inclined. A return spring 1505 is sleeved on the outer wall of the sliding rod 1503.
[0036] A top plate 16 is provided above the swing turntable 14. Four support rods 17 are fixedly connected to the four corners of the top plate 16. The positions of the four support rods 17 correspond to the positions of the four mounting components 15. A short rod 18 is fixedly connected to the bottom end of the support rod 17. The diameter of the short rod 18 is smaller than the diameter of the support rod 17. A connecting block 19 is fixedly connected to the bottom end of the short rod 18. The downward-facing side of the connecting block 19 is inclined. A slider 20 is slidably connected to the outer wall of the short rod 18. The upward-facing side of the slider 20 is inclined. The top plate 16 and the swing turntable 14 are movably connected to the support rods 17 and the connecting block 19 through the mounting components 15.
[0037] During operation, the top plate 16 drives the support rod 17 and the short rod 18 to move downwards simultaneously. The inclined surface of the connecting block 19 at the end of the short rod 18 contacts the inclined surface of the locking block 1504 inside the sleeve 1501 and generates a squeezing effect, pushing the locking block 1504 and the slide rod 1503 into the housing 1502. At the same time, the return spring 1505 on the outside of the slide rod 1503 is compressed. When the connecting block 19 passes the locking block 1504, the return spring 1505 releases its elastic potential energy to push the slide rod 1503 to return to its original position, causing the locking block 1504 to extend out of the housing 1502 and engage with the connecting block 19, thus completing the quick engagement between the top plate 16 and the swing turntable 14 without the need for additional tools, making the operation convenient and efficient.
[0038] Pressing down on the top plate 16 drives the support rod 17 and the short rod 18 to move downwards together. The slider 20 on the outside of the short rod 18 is first blocked by the locking block 1504 inside the sleeve 1501, and slides upwards along the outer wall of the short rod 18 to the connection between the support rod 17 and the short rod 18. Then the support rod 17 continues to move downwards, driving the slider 20 to move downwards synchronously. During the downward movement of the slider 20, its inclined surface abuts and presses against the inclined surface of the locking block 1504, causing the locking block 1504 to contract, and then it is lifted upwards. When the top plate 16 is pulled, the slider 20 first slides along the outer wall of the short rod 18 and gradually comes into contact with the connecting block 19. As the top plate 16 is pulled, the inclined surface of the connecting block 19 contacts the bottom surface of the locking block 1504 again and squeezes the locking block 1504 to make it contract until the connecting block 19 completely passes the locking block 1504. Then the top plate 16, together with the support rod 17, base 26 and other components, can be taken out as a whole, realizing the detachable and stable connection between the top plate 16 and the rocking turntable 14, which facilitates the handling of test tubes.
[0039] As a further embodiment of the present invention, a plurality of fixing components 21 are evenly and equidistantly arranged above the top plate 16. Each fixing component 21 includes a circular shell 2101, which is fixedly connected to the top plate 16. A base plate 2102 is fixedly connected to the bottom of the circular shell 2101. A plurality of limiting grooves 2103 are provided above the base plate 2102. The plurality of limiting grooves 2103 are radially distributed around the center of the base plate 2102 and are evenly arranged in a ring along the circumferential direction. A plurality of clamping blocks 2104 are provided above the base plate 2102. The plurality of clamping blocks 2104 are arranged in a petal-like pattern. A limiting block 2105 is fixedly connected below the clamping blocks 2104. The plurality of clamping blocks 2104 slide in the plurality of limiting grooves 2103 through the plurality of limiting blocks 2105.
[0040] During operation, the guide groove 2108 guides and pulls the guide rod 2106 inserted therein, causing multiple petal-shaped clamping blocks 2104 to slide synchronously within the limiting groove 2103 of the chassis 2102 via the limiting block 2105 below. This increases the distance between the clamping blocks 2104 to accommodate the insertion of the test tube. After the test tube is inserted, the clamping blocks 2104 converge towards the center along the limiting groove 2103 until they adhere to the outer wall of the test tube and are fixed. This allows for clamping of the test tube from multiple directions and is compatible with test tubes of different diameters, improving the versatility of the device. Furthermore, the sliding of the limiting block 2105 within the limiting groove 2103 prevents the clamping blocks 2104 from shifting.
[0041] As a further embodiment of the present invention, a guide rod 2106 is fixedly connected above the clamping block 2104, and a guide disk 2107 is rotatably connected inside the round shell 2101 above the clamping block 2104. Several arc-shaped guide grooves 2108 are evenly opened on the guide disk 2107, and several guide rods 2106 pass through several guide grooves 2108 respectively.
[0042] During operation, turning the throttle 2109 causes the guide plate 2107 to rotate within the circular shell 2101. The arc-shaped guide groove 2108 on the guide plate 2107 generates a guiding force on the guide rod 2106, driving the guide rod 2106 to slide along the limiting groove 2103 to adjust the spacing of the clamping blocks 2104. After releasing the throttle 2109, the guide plate 2107 rotates in the opposite direction, causing the clamping blocks 2104 to reset and clamp the test tube. The rotational motion of the guide plate 2107 is converted into the linear sliding motion of the clamping blocks 2104. The transmission structure is simple, efficient, and has high adjustment accuracy. Operation is labor-saving and convenient, improving the stability and smoothness of the adjustment of the clamping blocks 2104.
[0043] As a further embodiment of the present invention, a throttle 2109 is fixedly connected to one side of the guide plate 2107. A slot 22 is provided on the outer side of the round shell 2101 at a position corresponding to the guide plate 2107. The throttle 2109 slides through the slot 22. An arc-shaped rod 23 is fixedly connected in the slot 22. The arc-shaped rod 23 passes through the throttle 2109. A compression spring 24 is sleeved on the outer wall of the arc-shaped rod 23. Two L-shaped brackets 25 are symmetrically fixedly connected to the bottom of the top plate 16 near its two sides. A base 26 is fixedly connected between the two L-shaped brackets 25. Several placement slots 27 are equidistantly provided on the top of the base 26. The positions of the several placement slots 27 correspond to the positions of several fixing components 21.
[0044] During operation, the handle 2109 is pushed to slide along the slot 22. The handle 2109 slides on the outer wall of the arc-shaped rod 23 and squeezes the compression spring 24, causing the guide plate 2107 to rotate. After the handle 2109 is released, the rebound force of the compression spring 24 drives the handle 2109 and the guide plate 2107 to reset in the opposite direction, causing the clamping block 2104 to hold the test tube, realizing the elastic reset of the handle 2109. There is no need to manually rotate the handle 2109 in the opposite direction, which simplifies the operation steps and improves the test tube fixing efficiency. At the same time, the elastic force of the compression spring 24 can limit the handle 2109, preventing the guide plate 2107 from rotating arbitrarily and ensuring the stability of the clamping block 2104 in holding the test tube. With the precise alignment of the placement slot 27 and the fixing component 21, it can ensure that the test tube is placed vertically after insertion, avoiding sample spillage and ensuring the stability of the test tube placement.
[0045] As a further embodiment of the present invention, a buffer assembly 28 is provided in the placement slot 27. The buffer assembly 28 includes a bottom shell 2801, which is fixedly connected to the base 26. A column 2802 is fixedly installed at the center of the bottom shell 2801. Four sets of crossbars 2803 are fixedly connected to the outer side of the column 2802 at its four equal division points. There are two crossbars 2803 in each set. A buffer rod 2804 is slidably connected to the outer wall of each set of crossbars 2803. The buffer rod 2804 is bent in the middle and has an open design. A groove 2805 is opened on the top of the bottom shell 2801 at the position corresponding to the buffer rod 2804. The buffer rod 2804 passes through the groove 2805. A buffer spring 2806 is sleeved on the outer wall of the upper crossbar 2803 in each set of crossbars 2803. The buffer spring 2806 is located on the outer side of the buffer rod 2804.
[0046] During operation, the test tube is inserted into the placement slot 27. The bottom of the test tube presses against the bent part of the buffer rod 2804, driving the buffer rod 2804 to slide along the crossbar 2803 and press against the buffer spring 2806. The buffer spring 2806 undergoes elastic deformation, generating a reverse elastic force. Through the buffer rod 2804, it forms elastic support for the bottom of the test tube, achieving buffer protection and preventing the test tube from breaking due to excessive local force. Furthermore, the elastic deformation of the buffer spring 2806 can be adaptively adjusted to meet the buffering needs of test tubes of different sizes, improving the versatility of the device. It can also offset the impact force when the test tube is inserted, preventing hemolysis of blood samples due to severe impact and ensuring the accuracy of sample testing.
[0047] Working principle of the invention: When using this device, first operate the latch 4 on the side of the storage box 1 to separate the latch 4 from the corresponding latch hook 5 of the top cover 3. Then flip and open the top cover 3. Next, take out the top plate 16, L-shaped bracket 25, and base 26 inside the storage box 1. During operation, press down on the top plate 16. The top plate 16 drives the support rods 17 at its four corners to move downwards simultaneously. The support rods 17 drive the short rod 18 at the bottom to move downwards as well. At this time, the slider 20 on the outer wall of the short rod 18 will be blocked by the inner locking block 1504 of the sleeve 1501 in the mounting assembly 15, and then slide upwards on the outer wall of the short rod 18. When the slider 20 slides to the connection between the support rod 17 and the short rod 18, the support rod 17 continues to move downwards, which will drive the slider 20 to move downwards simultaneously. During the downward movement of the slider 20, its inclined surface and the inclined surface of the locking block 1504 interact with each other. Contact and pressure cause the locking block 1504 to retract into the housing 1502. As the locking block 1504 retracts, it drives the sliding rod 1503 to slide within the housing 1502 and presses the return spring 1505 sleeved on the outer wall of the sliding rod 1503. After the slider 20 has completely passed through the locking block 1504, the elastic force of the return spring 1505 drives the sliding rod 1503 and the locking block 1504 to return to their original positions. Then, the top plate 16 is pulled upward. During the upward sliding of the top plate 16, the slider 20 first slides on the outer wall of the short rod 18 and gradually comes into contact with the connecting block 19. The top plate 16 is pulled upward again, and the inclined surface of the connecting block 19 contacts the bottom surface of the locking block 1504 again and presses the locking block 1504, causing the locking block 1504 to retract into the housing 1502 again until the connecting block 19 completely passes through the locking block 1504. Then, the top plate 16, the support rod 17, and the base 26 and other components can be removed as a whole.
[0048] After removal, place the entire assembly in a suitable position. When placing a test tube containing a blood sample, rotate the handle 2109 on the fixing component 21. The handle 2109 slides within the empty slot 22 and simultaneously slides against the outer wall of the arc-shaped rod 23, compressing the compression spring 24 and causing the guide plate 2107 inside the cylindrical shell 2101 to rotate. During the rotation of the guide plate 2107, the arc-shaped guide groove 2108 it has opened will guide the guide rod 2106 that passes through it, causing several petal-shaped clamping blocks 2104 to slide synchronously within the limiting groove 2103 of the base 2102 through the limiting block 2105 below, thereby increasing the distance between the clamping blocks 2104. Then, insert the test tube containing the blood sample one by one into the corresponding fixing component 21. During the insertion process, the bottom of the test tube will contact the buffer component 28 in the placement slot 27 of the base 26. The bottom of the test tube exerts a squeezing force on the bent part of the buffer rod 2804, causing the buffer rod 2804 to slide on the outer wall of the crossbar 2803. During the sliding process, the buffer rod 2804 will squeeze the buffer spring 2806 sleeved on the outer wall of the upper crossbar 2803. The buffer spring 2806 undergoes elastic deformation and generates a reverse elastic force, which drives the buffer rod 2804 to form an elastic support for the bottom of the test tube, thereby achieving buffer protection during the insertion of the test tube. After the test tube is placed, the handle 2109 is released, and the guide plate 2107 rotates in the opposite direction under the rebound force of the compression spring 24. Through the cooperation of the guide groove 2108 and the guide rod 2106, several clamping blocks 2104 move synchronously towards the center along the limiting groove 2103 until the clamping blocks 2104 are in contact with the outer wall of the test tube, thus fixing the test tube. The compression spring 24 limits the handle 2109 to prevent the guide plate 2107 from rotating arbitrarily.
[0049] After the test tube is fixed, the top plate 16, support rod 17 and base 26 are reassembled back onto the top of the rocking turntable 14. During assembly, the top plate 16 is pressed down, which drives the support rod 17, short rod 18 and connecting block 19 to move down synchronously. The inclined surface of the connecting block 19 contacts the inclined surface of the locking block 1504 in the sleeve 1501 and squeezes the locking block 1504, causing the locking block 1504 to retract into the sleeve 1502 and compress the return spring 1505. When the connecting block 19 has completely passed through the locking block 1504, the return spring 1505 restores its elastic deformation, pushes the slide rod 1503 to drive the locking block 1504 to return to its original position, and the locking block 1504 enters the sleeve 1501, realizing the connection between the support rod 17 and the sleeve 1501. Then the top cover 3 is closed, and the locking hook 5 on the top cover 3 is engaged with the locking buckle 4 on the side of the storage box 1 to complete the closure of the storage box 1.
[0050] After the device is started, the control motor 7 starts working. The output end of the control motor 7 drives the drive rod 12 connected to it to rotate. Since both drive rods 12 are bent and face each other and in opposite directions, and the ends of the two drive rods 12 are respectively rotatably connected to the two ends of the central connecting rod 11 of the rotating block 10, when one drive rod 12 rotates, it will drive the other drive rod 12 to rotate synchronously in the opposite direction through the connecting rod 11. During the rotation of the connecting rod 11, the rotating block 10 is driven to rotate between the two fixed plates 9, which in turn drives the entire swing bracket 8 to swing back and forth around the rotating connection point at the bottom of the storage box 1 as the axis. The support plate 13 at the top of the swing bracket 8 drives the swing turntable 14 to swing back and forth. The swing turntable 14 drives the top plate 16 and the base 26, which are fixed with test tubes, to swing back and forth synchronously. This avoids the situation where blood samples are left to stand for a long time, which would lead to a decrease in cell activity and sample agglutination, thus ensuring the quality of blood sample testing.
Claims
1. A blood sampling device for isolated cell detection, comprising a storage box (1), characterized in that: Two rotating shafts (2) are symmetrically fixedly installed on one side of the storage box (1). A top cover (3) is provided on the top of the storage box (1). The storage box (1) is rotatably connected to the top cover (3) through the rotating shafts (2). Two latches (4) are fixedly connected to the other side of the storage box (1). Two locking hooks (5) are fixedly installed on one side of the top cover (3) at positions corresponding to the two latches (4). A shell (6) is fixedly installed on the inner bottom of the storage box (1). A control motor (7) is fixedly installed on one side of the shell (6). A swing bracket (8) is rotatably connected to the inner bottom of the storage box (1) through the rotating shaft. The shell (6) covers the swing bracket (8). Two fixing plates (9) are fixedly connected to the middle position of the swing bracket (8). A rotating block (10) is rotatably connected to the outer shell (6). A connecting rod (11) is fixedly installed at the center of the rotating block (10). Two driving rods (12) are rotatably connected to the inner walls on both sides of the outer shell (6). Both driving rods (12) are bent. The two driving rods (12) face each other and are in opposite directions. The ends of the two driving rods (12) are rotatably connected to the two ends of the connecting rod (11). The output end of the control motor (7) is connected to one of the driving rods (12). A support plate (13) is fixedly connected to the top of the swing bracket (8). A swing turntable (14) is fixedly connected above the support plate (13). Two sets of mounting components (15) are symmetrically arranged on the side above the swing turntable (14). The mounting components (15) include a sleeve (1501).
2. The blood sampling device for isolated cell detection according to claim 1, characterized in that: The sleeve (1501) is fixedly connected to the rocking turntable (14). Four shells (1502) are fixedly installed evenly and at equal intervals near the top of the sleeve (1501). A sliding rod (1503) is slidably connected inside the shell (1502). A locking block (1504) is fixedly connected to one end of the sliding rod (1503) facing the inside of the sleeve (1501). The side of the locking block (1504) facing upward is inclined. A return spring (1505) is sleeved on the outer wall of the sliding rod (1503). A top plate (16) is provided above the rocking turntable (14).
3. The blood sampling device for isolated cell detection according to claim 2, characterized in that: Four support rods (17) are fixedly connected to the four corners of the top plate (16). The positions of the four support rods (17) correspond to the positions of the four mounting components (15). A short rod (18) is fixedly connected to the bottom end of the support rod (17). The diameter of the short rod (18) is smaller than the diameter of the support rod (17). A connecting block (19) is fixedly connected to the bottom end of the short rod (18). The side of the connecting block (19) facing downward is inclined. A slider (20) is slidably connected to the outer wall of the short rod (18). The side of the slider (20) facing upward is inclined. The top plate (16) and the swing turntable (14) are movably connected to the support rods (17) and the connecting block (19) through the mounting components (15). Several fixing components (21) are evenly and equidistantly arranged above the top plate (16). The fixing components (21) include a round shell (2101).
4. The blood sampling device for isolated cell detection according to claim 3, characterized in that: The circular shell (2101) is fixedly connected to the top plate (16). The bottom of the circular shell (2101) is fixedly connected to the chassis (2102). Several limiting grooves (2103) are provided on the upper part of the chassis (2102). The several limiting grooves (2103) are radially distributed with the center of the chassis (2102) as the center and are evenly arranged in a ring along the circumference. Several clamping blocks (2104) are provided on the upper part of the chassis (2102). The several clamping blocks (2104) are arranged in a petal-like pattern. The clamping blocks (2104) are fixedly connected to the lower part of the clamping blocks (2104). The several clamping blocks (2104) slide in the several limiting grooves (2103) respectively through the several limiting blocks (2105).
5. The blood sampling device for isolated cell detection according to claim 4, characterized in that: A guide rod (2106) is fixedly connected above the clamping block (2104). A guide disc (2107) is rotatably connected inside the circular shell (2101) above the clamping block (2104). Several arc-shaped guide grooves (2108) are evenly opened on the guide disc (2107). Several guide rods (2106) pass through several guide grooves (2108) respectively. A throttle (2109) is fixedly connected to one side of the guide disc (2107). A slot (22) is opened on the outer side of the circular shell (2101) at a position corresponding to the guide disc (2107).
6. The blood sampling device for isolated cell detection according to claim 5, characterized in that: The throttle (2109) slides through the slot (22) and is fixedly connected to the slot (22). The arc rod (23) passes through the throttle (2109). A compression spring (24) is sleeved on the outer wall of the arc rod (23). Two L-shaped brackets (25) are symmetrically fixedly connected to the bottom of the top plate (16) near its two sides. A base (26) is fixedly connected between the two L-shaped brackets (25). Several placement slots (27) are equidistantly opened above the base (26). The positions of the several placement slots (27) correspond to the positions of several fixed components (21).
7. The blood sampling device for isolated cell detection according to claim 6, characterized in that: The placement slot (27) is provided with a buffer assembly (28), which includes a bottom shell (2801). The bottom shell (2801) is fixedly connected to the base (26). A column (2802) is fixedly installed at the center of the bottom shell (2801). Four sets of crossbars (2803) are fixedly connected to the outer side of the column (2802) at its four equal division points. There are two crossbars in each set. The outer wall of each set of crossbars (2803) can slide. A buffer rod (2804) is connected, and the buffer rod (2804) is bent in the middle and designed to open. A groove (2805) is opened on the top of the bottom shell (2801) at a position corresponding to the buffer rod (2804). The buffer rod (2804) passes through the groove (2805). In each set of crossbars (2803), the upper crossbar (2803) has a buffer spring (2806) sleeved on its outer wall. The buffer spring (2806) is located on the outside of the buffer rod (2804).
8. A method of using an isolated blood sampling device for cell detection, as described in any one of claims 1-7, characterized in that, The method of use includes the following steps: When using the device, first operate the latch (4) on the side of the storage box (1) to separate the latch (4) from the corresponding latch (5) of the top cover (3), then flip the top cover (3) open, and then take out the top plate (16) inside the storage box (1) and the whole formed by the L-shaped bracket (25) and the base (26). When operating, press down on the top plate (16), and the top plate (16) will drive the support rods (17) at its four corners to move down synchronously. The support rods (17) will drive the bottom end of the top plate (16) to move down synchronously. The short rod (18) moves downwards. At this time, the slider (20) on the outer wall of the short rod (18) will be blocked by the inner locking block (1504) of the sleeve (1501) in the mounting assembly (15), and then slide upwards on the outer wall of the short rod (18). When the slider (20) slides to the connection between the support rod (17) and the short rod (18), the support rod (17) continues to move downwards, which will drive the slider (20) to move downwards synchronously. During the downward movement of the slider (20), its inclined surface and the inclined block (1504) are inclined. The surfaces come into contact and press against each other, causing the locking block (1504) to retract into the housing (1502). As the locking block (1504) retracts, it drives the sliding rod (1503) to slide inside the housing (1502) and press against the return spring (1505) sleeved on the outer wall of the sliding rod (1503). After the slider (20) has completely passed through the locking block (1504), the elastic force of the return spring (1505) drives the sliding rod (1503) and the locking block (1504) to return to their original positions. Then, the top plate (16) is pulled upward. During the upward sliding process, the slider (20) first slides on the outer wall of the short rod (18) and gradually comes into contact with the connecting block (19). Then, the top plate (16) is pulled upward. The inclined surface of the connecting block (19) contacts the bottom surface of the locking block (1504) again and squeezes the locking block (1504), causing the locking block (1504) to retract into the casing (1502) again until the connecting block (19) completely passes over the locking block (1504). Then, the top plate (16), support rod (17), and base (26) and other components can be taken out as a whole. After removal, place the entire assembly in a suitable position. When placing the test tube containing the blood sample, rotate the handle (2109) on the fixing assembly (21). The handle (2109) slides in the empty groove (22) and slides on the outer wall of the arc-shaped rod (23), compressing the compression spring (24) and driving the guide plate (2107) inside the round shell (2101) to rotate. During the rotation of the guide plate (2107), the guide groove (2108) it opens will penetrate through it. The guide rod (2106) provides guidance, causing several petal-shaped clamping blocks (2104) to slide synchronously within the limiting groove (2103) of the chassis (2102) via the limiting block (2105) below, thereby increasing the distance between the clamping blocks (2104). Subsequently, test tubes containing blood samples are inserted one by one into the corresponding fixing components (21). During the insertion process, the bottom of the test tube will contact the buffer component (28) in the placement groove (27) of the base (26). The bottom of the test tube exerts a squeezing force on the bent part of the buffer rod (2804), causing the buffer rod (2804) to slide on the outer wall of the crossbar (2803). During the sliding process, the buffer rod (2804) squeezes the buffer spring (2806) sleeved on the outer wall of the upper crossbar (2803). The buffer spring (2806) undergoes elastic deformation, generating a reverse elastic force, which drives the buffer rod (2804) to form elastic support for the bottom of the test tube, thus achieving buffer protection during the insertion of the test tube. After completion, release the throttle (2109), and the guide plate (2107) rotates in the opposite direction under the rebound force of the compression spring (24). Through the cooperation of the guide groove (2108) and the guide rod (2106), it drives several clamping blocks (2104) to move synchronously towards the center along the limiting groove (2103) until the clamping blocks (2104) are attached to the outer wall of the test tube, thus completing the fixation of the test tube. The compression spring (24) also limits the throttle (2109) to prevent the guide plate (2107) from rotating randomly. After the test tube is fixed, the top plate (16), support rod (17), and base (26) are reassembled back onto the top of the rocking turntable (14). During assembly, the top plate (16) is pressed down, causing the support rod (17), short rod (18), and connecting block (19) to move down synchronously. The inclined surface of the connecting block (19) contacts the inclined surface of the locking block (1504) inside the sleeve (1501) and squeezes the locking block (1504), causing the locking block (1504) to retract into the casing (1502) and be compressed and reset. When the connecting block (19) passes through the locking block (1504), the spring (1505) returns to its elastic deformation, pushes the slide rod (1503) to drive the locking block (1504) to reset, and the locking block (1504) enters the sleeve (1501) to realize the connection between the support rod (17) and the sleeve (1501). Then the top cover (3) is closed, and the locking hook (5) on the top cover (3) is engaged with the locking buckle (4) on the side of the storage box (1) to complete the closure of the storage box (1). After the device is started, the control motor (7) begins to work. The output end of the control motor (7) drives the drive rod (12) connected to it to rotate. Since both drive rods (12) are bent and face each other and in opposite directions, and the ends of the two drive rods (12) are respectively rotatably connected to the two ends of the central connecting rod (11) of the rotating block (10), when one drive rod (12) rotates, it will drive the other drive rod (12) to rotate synchronously in the opposite direction through the connecting rod (11). During the rotation, the connecting rod (11) drives the rotating block to rotate. The block (10) rotates between the two fixed plates (9), thereby causing the entire swing bracket (8) to swing back and forth around the rotating connection point at the bottom of the storage box (1). The support plate (13) at the top of the swing bracket (8) then causes the swing turntable (14) to swing back and forth. The swing turntable (14) then causes the top plate (16) and the base (26) with the test tubes fixed above to swing back and forth synchronously. This avoids the situation where blood samples are left to stand for a long time, which leads to a decrease in cell activity and sample agglutination, thus ensuring the detection quality of blood samples.