Sample collection device for blood detection

Abstract

The invention discloses a sample collection device for blood detection, and belongs to the technical field of blood collection. By starting a swing assembly, an upper supporting assembly and a lower supporting assembly outside a stand column integrally do reciprocating revolution, and an outer gear ring can be subjected to meshing driving force of an inner gear ring in the reciprocating revolution process and rotate around the axis of the outer gear ring; the rotation of the outer gear ring drives the test tube rack and the blood sampling test tubes in the test tube rack to synchronously rotate, and in the reciprocating revolution process of the outer gear ring, the test tube rack drives the internal sample test tubes to rotate again, so that the blood sampling test tubes simultaneously perform reciprocating revolution and continuous reciprocating rotation around the stand column in a refrigeration environment; a blood sample in the test tube generates continuous dynamic flow, the dynamic flow can promote uniform mixing of blood and an anticoagulant in the test tube, local aggregation of the anticoagulant is avoided, precipitation and condensation of the sample are effectively inhibited from the physical level, uniform and stable components of the sample are guaranteed, and the accuracy and consistency of a detection result are improved.

Description

Technical Field

[0001] This invention relates to the field of blood collection technology, specifically to a sample collection device for blood testing. Background Technology

[0002] Blood testing encompasses multiple dimensions, including routine blood tests, biochemical analysis, and pathogen detection, and is widely used in hospital diagnosis and treatment, community health checkups, emergency medical care, and family health management. With the advancement of precision medicine and hierarchical medical treatment policies, the scenarios for blood sample collection are becoming increasingly diversified. This not only requires meeting the needs of professional medical institutions for efficient batch collection, but also adapting to special scenarios such as convenient operation at primary healthcare points and safe and controllable home sampling.

[0003] Blood samples contain formed elements such as red blood cells, white blood cells, and platelets, as well as soluble components such as blood glucose, blood lipids, and enzymes. Their physical stability is directly related to the accuracy of the test results. During the static period after blood sample collection and before testing, such as sample transportation and waiting for laboratory testing, the following problems may easily occur:

[0004] Due to gravity, formed elements such as red blood cells and platelets in blood will gradually settle and separate into layers. For samples that require testing of whole blood indicators, such as complete blood count and glycated hemoglobin, this separation can lead to uneven sampling during testing, resulting in errors such as an inflated red blood cell count and distorted hemoglobin concentration. Even for serum tests, if precipitated cellular components are mixed in during sampling, they can interfere with the results of biochemical tests.

[0005] After blood leaves the blood vessels, it initiates the intrinsic coagulation pathway. If it is not mixed evenly with the anticoagulant in a timely manner or is not mixed sufficiently, fibrinogen will be converted into fibrin, which will entangle blood cells to form a blood clot. The coagulated sample cannot be used for routine tests, such as coagulation function and complete blood count, and may also block the sampling needle of the testing instrument. Even if an anticoagulant is added to the sample, if there is no continuous mixing mechanism during the standing process, the anticoagulant is prone to local aggregation, and there is still a risk of local coagulation or microclot formation, which will affect the consistency and reliability of the test results.

[0006] Based on this, the present invention designs a blood sample collection device to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide a blood sample collection device to solve the problem that existing devices mentioned in the background art lack a mechanical structure for continuous mixing or anti-precipitation during the standing stage, rely solely on the chemical action of anticoagulants, and are unable to fundamentally solve the problems of physical stratification and spontaneous coagulation, thereby affecting the consistency and reliability of test results.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A blood sample collection device includes a refrigerated storage box. An armrest is provided on one side of the refrigerated storage box, and a retaining groove is provided inside the armrest. An adjustment component is fixedly connected to the bottom of the armrest, and the adjustment component is installed at the lowest point of the refrigerated storage box. An inner cylinder is fixedly connected inside the refrigerated storage box, and a fixing plate is fixedly connected to the bottom of the inner cylinder. The fixing plate is fixed at the lower position inside the refrigerated storage box. A support bearing is engaged in the middle of the fixing plate, and a turntable is rotatably connected inside the support bearing. The turntable is located at the opening at the bottom of the inner cylinder. A swing assembly is fixedly connected to the center of the turntable. The swing assembly is installed at the bottom of the inner wall of the refrigerator. A column is fixedly connected to the center of the top of the turntable. The top of the column passes through the opening at the top of the inner cylinder and is rotatably connected to the top position of the inner wall of the refrigerator through a bushing. A set of support assemblies is fixedly connected to the upper and lower sides of the column, and there are four support assemblies in each set. A material support assembly is sleeved inside the support assembly. An internal gear ring is fixed inside the inner cylinder at the position corresponding to the two sets of support assemblies. The outside of each set of support assemblies is engaged with the same internal gear ring.

[0010] As a further embodiment of the present invention, the arm support is installed at an angle on the adjustment assembly, and the retaining groove inside the arm support is located at the lowest point. The adjustment assembly includes a base plate and is fixed to the lowest point on the refrigerated storage box. There are two base plates, and a rotating shaft is installed at the end of each base plate. A support plate is rotatably connected to each base plate near the lowest point of the arm support via the rotating shaft. The arm support is fixed on the two support plates, and a support rod is fixedly connected between the two support plates. A locking rod is rotatably connected to the middle of the support plate via a pin, and a handle is fixed between the two locking rods. Several locking holes are provided on the base plate, and the locking rod is engaged in one of the locking holes.

[0011] As a further embodiment of the present invention, a shelf is installed at the highest point of the top of the refrigerated storage box, and a door is installed on the back of the refrigerated storage box. Two cylindrical doors are installed on the outside of the inner cylinder at positions corresponding to the door, and the two cylindrical doors are respectively located above the two sets of support components.

[0012] As a further embodiment of the present invention, the swing assembly includes a deflection rod, one end of which is fixedly connected to a fixed shaft, and a rotary bearing is sleeved on the bottom end of the fixed shaft. The rotary bearing is engaged with the bottom of the inner wall of the refrigerator. A sliding hole is provided inside the deflection rod, and a lever is slidably inserted through the sliding hole at a position away from the fixed shaft. A connecting plate is fixedly connected to the bottom end of the lever, and a motor is fixedly connected to the bottom of the connecting plate on the side away from the lever. The motor is fixedly connected to the bottom of the inner wall of the refrigerator.

[0013] As a further embodiment of the present invention, a sliding column is slidably inserted through the middle position of the sliding hole, and a deflection block is fixedly connected to the top of the sliding column. The side of the top of the deflection block away from the sliding column is fixedly connected to the bottom of the turntable.

[0014] As a further embodiment of the present invention, the support assembly includes a support frame, one end of which is fixed to the outside of the column. Limit bearings are fixed at the upper and lower parts of the inside of the support frame, and an external gear ring is rotatably sleeved between the two limit bearings. The external gear ring meshes with an internal gear ring.

[0015] As a further embodiment of the present invention, the material support assembly includes a test tube rack, and the test tube rack is inserted into a through hole in the middle of the support frame. Several insertion rods are fixed at the bottom edge of the test tube rack, and insertion holes are respectively opened in the outer gear ring corresponding to the positions of the several insertion rods. The insertion rods are inserted into the locking holes in the outer gear ring.

[0016] As a further embodiment of the present invention, a plurality of gripping holes are provided at the top edge of the test tube rack, a bracket is fixedly connected to the bottom of the test tube rack, a plurality of spacers are fixedly provided at the bottom of the bracket, a plurality of mounting holes are provided on the test tube rack and the spacers respectively, blood collection tubes are inserted into the corresponding spacers and mounting holes, and an inverted conical pressure ring is fixed above the outside of the blood collection tube, and a snap fastener assembly is respectively snapped on both sides of the pressure ring, and the vertical positions of the upper and lower mounting holes are corresponding, and the mounting holes are used to limit the blood collection tubes, and the bottom of the bracket is used to support the bottom end of the blood collection tubes.

[0017] As a further embodiment of the present invention, slides are respectively provided on both sides of the mounting hole in the test tube rack. The buckle assembly includes a stop block and a push block. The stop block and the push block slide in the slide on the same side. The opposing surfaces of the stop block and the push block are flat, and the sides away from each other are conical. The flat part of the bottom of the stop block overlaps with the flat part of the top of the inverted conical pressure ring. Two guide rods are fixed to the bottom of the stop block. The push block slides through the bottom of the two guide rods. Two springs are fixed between one side of the stop block and the inner wall of the slide. A top block slides inside the spacer. The top of the top block has a ball groove and overlaps with the bottom of the blood collection tube. An elastic telescopic rod is fixed to the bottom of the top block, and the bottom end of the elastic telescopic rod is fixed to the bottom of the bracket.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention uses a motor to rotate a connecting plate, which in turn drives a deflector pin to rotate in a circular motion. The deflector pin slides through a sliding hole in a deflector rod. When the deflector pin rotates in a circular motion, it drives the deflector rod to reciprocate around a fixed axis. The sliding pin in the sliding hole of the deflector rod reciprocates with the deflector rod's rotation. Simultaneously, the deflection block at the top of the sliding pin drives the turntable to reciprocate around the support bearing. Since the column is fixed at the center of the turntable's top and its top is rotatably connected to the top of the inner wall of the refrigerated storage box via a bushing, the reciprocating rotation of the turntable drives the column to reciprocate in a synchronous revolution. This, in turn, drives the two sets of support components on the outside of the column to reciprocate in a revolution. Because the outer gear ring meshes with the inner gear ring fixed to the inner wall of the inner cylinder, the outer gear ring is driven by the meshing force of the inner gear ring during its reciprocating revolution, causing it to rotate around its own axis. Furthermore, the outer gear ring is rotatably connected to the support frame via two upper and lower limit bearings, ensuring smooth rotation. Since the test tube rack is fixed by inserting a rod into the insertion hole of the outer gear ring, the rotation of the outer gear ring will cause the test tube rack and the blood collection tubes inside to rotate synchronously. During the reciprocating revolution of the outer gear ring, the test tube rack will cause the internal sample tubes to rotate again. Based on this, the blood collection tubes simultaneously reciprocate around the column and continuously rotate in a refrigerated environment, causing the blood sample inside the tube to generate continuous dynamic flow. This breaks the condition of sedimentation caused by gravity. At the same time, the dynamic flow can promote the uniform mixing of blood and anticoagulant in the test tube, avoiding local aggregation of anticoagulant, effectively inhibiting sample precipitation and coagulation from a physical perspective, ensuring uniform and stable sample composition, and improving the accuracy and consistency of test results.

[0020] 2. In this invention, when removing the test tube rack from the inner cylinder, a tool or hand is inserted into the holding hole, and the rack is pulled vertically and steadily upwards. This causes the insertion rod at the bottom of the test tube rack to gradually disengage from the insertion hole of the outer toothed ring in the support assembly. Once the insertion rod is completely disengaged, the entire material support assembly, including the blood collection tubes, is removed from the perforation of the support frame. The removed material support assembly is placed on a clean operating table, and the blood collection tubes are pulled out one by one from the mounting holes of the test tube rack to complete the sample delivery for testing. Alternatively, the test tube rack can be directly sent to a testing institution for batch testing. When storing the blood collection tubes, the tubes are inserted one by one into the test tube rack and... The test tubes are kept vertical by the limiting effect of the corresponding mounting holes in the spacer, preventing them from tilting or shaking. Hold the top of the pre-installed test tube rack and align it with the through hole in the middle of the support frame of the support component. Align the several inserts at the bottom of the test tube rack with the corresponding insertion holes of the outer toothed ring in the support component. Press the test tube rack vertically downward until the inserts are fully inserted into the insertion holes, thus fixing the test tube rack to the outer toothed ring. Based on this, the test tube rack of the material support component can be quickly assembled and disassembled by inserting the inserts into the insertion holes of the outer toothed ring in the support component, facilitating batch sample replacement.

[0021] 3. In this invention, when adjusting the arm support, the handle between the two levers is grasped and pulled upwards to rotate the levers around the pin shaft, disengaging them from the currently engaged locking holes on the base plate. At this time, the support plate can freely deflect around the rotation axis at the end of the base plate. Based on the patient's height, body shape, and blood collection posture, the arm support is adjusted to a suitable tilt angle to ensure that the patient's arm is naturally relaxed and the blood vessels are full after placement. After adjustment, the handle is released, and the levers reset under their own weight, locking into the corresponding locking holes on the base plate, thus locking the angle between the support plate and the arm support. Finally, the arm support is fixed in a tilted position. The patient places their arm on the arm support at the locked angle, where the internal retaining groove is at its lowest point. The retaining groove limits the arm, preventing the hand from sliding down continuously after the arm is tilted, thus affecting normal blood collection. This can meet the blood collection needs of different patients.

[0022] 4. This invention presses the blood collection tube to compress the bottom of the top block. When the blood collection tube is inserted to a preset depth, the top plane of its external inverted conical pressure ring precisely fits against the bottom plane of the stop block of the pressure buckle assembly, allowing the pressure ring to compress the stop block until the pressure ring completely passes through the stop block and is positioned below it. The stop block, under the preload of the spring, remains extended outward, working in conjunction with the top block to support the top of the blood collection tube, ensuring the stop block abuts against the pressure ring and preventing the blood collection tube from moving or falling off vertically. To remove the blood collection tube, press the top of the blood collection tube, causing the blood collection tube to simultaneously move the pressure ring downwards, so that the conical surface at the bottom of the pressure ring contacts the flat surface at the top of the push block, allowing the push block to move into the slide. When the pressure ring passes through... When the pusher is in the lower position, the spring force pushes the stop block out of the slide, causing the stop block to move horizontally along with the pusher through the limit rod. Then, the blood collection tube is no longer pressed. The elastic force of the elastic telescopic rod supports the top block, which in turn lifts the blood collection tube and the pressure ring together. At the same time, the pressure ring pushes the pusher block above to move upward outside the two guide rods until the opposing surfaces of the pusher block and the stop block are in contact. This allows the pressure ring to pass through the connection between the pusher block and the stop block, thus releasing the locking state of the pressure ring and the blood collection tube, so that the blood collection tube can be taken out of the tube rack. Therefore, the purpose of picking up and placing the blood collection tube and limiting the locking can be achieved by pressing, which improves the stability of blood collection tube storage and the convenience of picking up and placing operations. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 This is a rear view structural schematic diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the adjustment component of the present invention;

[0027] Figure 4 This is a schematic diagram of a partial cross-section of the refrigerated storage box of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the swing assembly of the present invention;

[0029] Figure 6 This is a schematic diagram of the connection between the sliding column and the deflection rod of the present invention;

[0030] Figure 7 This is a schematic diagram of the cross-section of the inner cylinder of the present invention;

[0031] Figure 8 This is a schematic diagram of a partial cross-section of the material support assembly of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of the support component of the present invention;

[0033] Figure 10 For the present invention Figure 8 Enlarged structural diagram at point A;

[0034] Figure 11 This is a schematic diagram of the connection between the top block and the elastic telescopic rod of the present invention;

[0035] Figure 12 This is a schematic diagram of the snap fastener assembly of the present invention.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1. Refrigerated storage box; 2. Arm support; 3. Baffle groove; 4. Adjustment assembly; 401. Base plate; 402. Rotating shaft; 403. Support plate; 404. Support rod; 405. Locking rod; 406. Handle; 407. Locking hole; 5. Shelf; 6. Inner cylinder; 7. Fixing plate; 8. Turntable; 9. Support bearing; 10. Door; 11. Box door; 12. Swing assembly; 121. Deflecting rod; 122. Fixing shaft; 123. Rotary bearing; 124. Sliding hole; 125. Pulley; 126. Connecting plate; 127. Motor; 128. 129. Deflection block; 13. Sliding column; 14. Column; 15. Support assembly; 16. Support frame; 17. Limit bearing; 18. External gear ring; 19. Insertion hole; 10. Internal gear ring; 11. Material support assembly; 120. Test tube rack; 13. Spacer; 14. Mounting hole; 15. Grip hole; 16. Insert rod; 17. Bracket; 18. Slide rail; 19. Press buckle assembly; 10. Stop block; 11. Guide rod; 12. Push block; 13. Spring; 14. Pressure ring; 15. Top block; 16. Elastic telescopic rod. Detailed Implementation

[0038] 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.

[0039] Please see Figures 1-12 The present invention provides a technical solution:

[0040] A blood sample collection device includes a refrigerated storage box 1. An armrest 2 is provided on one side of the refrigerated storage box 1. A retaining groove 3 is provided inside the armrest 2. An adjusting component 4 is fixedly connected to the bottom of the armrest 2, and the adjusting component 4 is installed at the lowest point of the refrigerated storage box 1. An inner cylinder 6 is fixedly connected inside the refrigerated storage box 1. A fixing plate 7 is fixedly connected to the bottom of the inner cylinder 6, and the fixing plate 7 is fixed at the lower position inside the refrigerated storage box 1. A support bearing 9 is snapped into the middle of the fixing plate 7. A turntable 8 is rotatably connected inside the support bearing 9. The turntable 8 is located at the opening at the bottom of the inner cylinder 6. A [missing information - likely a component or component] is fixedly connected to the center of the bottom of the turntable 8. The swing assembly 12 is installed at the bottom of the inner wall of the refrigerator 1. A column 13 is fixedly connected to the center of the top of the turntable 8. The top of the column 13 passes through the opening at the top of the inner cylinder 6 and is rotatably connected to the top of the inner wall of the refrigerator 1 through a bushing. A set of support assemblies 14 are fixedly connected to the upper and lower sides of the outside of the column 13, and there are four support assemblies 14 in each set. A material support assembly 16 is sleeved inside the support assembly 14. An internal gear ring 15 is fixed inside the inner cylinder 6 at the position corresponding to the two sets of support assemblies 14. The outside of each set of support assemblies 14 is engaged with the same internal gear ring 15.

[0041] As a further embodiment of the present invention, the arm support 2 is installed on the adjustment assembly 4 in an inclined manner, and the retaining groove 3 in the arm support 2 is located at the lowest point. The adjustment assembly 4 includes a base plate 401 and is fixed to the lowest point on the refrigerator box 1. There are two base plates 401. The ends of the two base plates 401 are equipped with rotating shafts 402. The two base plates 401 are rotatably connected to the support plate 403 near the lowest point of the arm support 2 through the rotating shafts 402. The arm support 2 is fixed on the two support plates 403. A support rod 404 is fixedly connected between the two support plates 403. A locking rod 405 is rotatably connected to the middle of the support plate 403 through a pin. A handle 406 is fixed between the two locking rods 405. Several locking holes 407 are opened on the base plate 401, and the locking rod 405 is locked in one of the locking holes 407.

[0042] During operation, pulling upwards causes the lever 405 to rotate around the pin, disengaging from the currently engaged locking hole 407 on the base plate 401. At this time, the support plate 403 can freely deflect around the rotation axis 402 at the end of the base plate 401. Based on the patient's height, body shape, and blood collection posture, the arm support 2 is adjusted to a suitable tilt angle to ensure that the patient's arm relaxes naturally and the blood vessels are filled after placement. Releasing the handle 406 causes the lever 405 to reset under its own weight and engage with the corresponding locking hole 407 on the base plate 401, thereby locking the angle between the support plate 403 and the arm support 2.

[0043] As a further embodiment of the present invention, a shelf 5 is installed at the highest point of the top of the refrigerated storage box 1, and a door 11 is installed on the back of the refrigerated storage box 1. Two cylinder doors 10 are installed on the outside of the inner cylinder 6 at positions corresponding to the door 11, and the two cylinder doors 10 are respectively located above the two sets of support components 14.

[0044] During operation, consumables such as disinfection supplies and empty test tubes can be temporarily placed on the shelf 5 at the top of the refrigerated storage box 1 to improve the convenience of operation; test tubes can be taken out and put in by opening the box door 11 of the refrigerated storage box 1 and the cylinder door 10 of the inner cylinder 6, and the space between the refrigerated storage box 1 and the inner cylinder 6 can play a role in heat preservation, so that the temperature in the inner cylinder 6 remains stable.

[0045] As a further embodiment of the present invention, the swing assembly 12 includes a deflection rod 121, one end of which is fixedly connected to a fixed shaft 122. A rotary bearing 123 is sleeved on the bottom end of the fixed shaft 122 and is engaged with the bottom of the inner wall of the refrigerator 1. A sliding hole 124 is provided inside the deflection rod 121. A pivot 125 slides through the sliding hole 124 at a position away from the fixed shaft 122. A connecting plate 126 is fixedly connected to the bottom end of the pivot 125. A motor 127 is fixedly connected to the bottom of the connecting plate 126 on the side away from the pivot 125. The motor 127 is fixedly connected to the bottom of the inner wall of the refrigerator 1. A sliding column 129 slides through the middle of the sliding hole 124. A deflection block 128 is fixedly connected to the top end of the sliding column 129. The top end of the deflection block 128 on the side away from the sliding column 129 is fixedly connected to the bottom of the turntable 8.

[0046] During operation, when the lever 125 rotates in a circular motion, it drives the deflector 121 to reciprocate around the fixed shaft 122. Since the fixed shaft 122 is fixed to the bottom of the inner wall of the refrigerator 1 through the rotary bearing 123, the stability of the reciprocating deflection of the deflector 121 is improved. The sliding column 129 in the sliding hole 124 in the deflector 121 slides back and forth with the deflector 121. At the same time, the deflection block 128 at the top of the sliding column 129 drives the turntable 8 to reciprocate around the support bearing 9. Since the column 13 is fixed at the top center of the turntable 8 and its top is rotatably connected to the top of the inner wall of the refrigerator 1 through the bushing, the reciprocating rotation of the turntable 8 will drive the column 13 to reciprocate in a synchronous revolution, so that the test tube outside the column 13 can swing back and forth.

[0047] As a further embodiment of the present invention, the support assembly 14 includes a support frame 141, one end of which is fixed to the outside of the column 13. Limit bearings 142 are fixed at the upper and lower parts of the inside of the support frame 141, and an outer gear ring 143 is sleeved and rotated between the two limit bearings 142. The outer gear ring 143 is meshed with an inner gear ring 15.

[0048] During operation, the outer gear ring 143 is driven by the meshing force of the inner gear ring 15 during its reciprocating revolution, causing it to rotate around its own axis. The outer gear ring 143 is rotatably connected to the support frame 141 through two upper and lower limit bearings 142 to ensure smooth rotation. Therefore, the rotation of the outer gear ring 143 will drive the test tube rack 161 and the blood collection tubes inside the rack to rotate synchronously. During the reciprocating revolution of the outer gear ring 143, the test tube rack 161 will drive the internal sample tubes to rotate again, causing the blood samples in the test tubes to generate continuous dynamic flow.

[0049] As a further embodiment of the present invention, the material support assembly 16 includes a test tube rack 161, and the test tube rack 161 is inserted into the through hole in the middle of the support frame 141. Several insertion rods 165 are fixed at the bottom edge of the test tube rack 161. Insertion holes 144 are respectively opened in the outer gear ring 143 corresponding to the positions of several insertion rods 165. The insertion rods 165 are inserted into the locking holes 407 in the outer gear ring 143. Several gripping holes 164 are opened at the top edge of the test tube rack 161.

[0050] During operation, use a tool or your hand to reach into the holding hole 164 and pull vertically upwards smoothly, so that the insertion rod 165 at the bottom of the test tube rack 161 gradually disengages from the insertion hole 144 of the outer toothed ring 143 in the support component 14, until the insertion rod 165 is completely disengaged from the insertion hole 144. Then, remove the entire material support component 16, including the blood collection test tube, from the perforation of the support frame 141. When it is necessary to store the blood collection test tube, align the test tube rack 161 with the perforation in the middle of the support frame 141 of the support component 14, so that the insertion rods 165 at the bottom of the test tube rack 161 are aligned with the corresponding insertion holes 144 of the outer toothed ring 143 in the support component 14. Press the test tube rack 161 vertically downwards until the insertion rod 165 is fully inserted into the insertion hole 144, thereby achieving the insertion and fixation of the test tube rack 161 and the outer toothed ring 143.

[0051] As a further embodiment of the present invention, a bracket 166 is fixedly connected to the bottom of the test tube rack 161. Several spacers 162 are fixedly fixed inside the bottom of the bracket 166. Several mounting holes 163 are respectively opened on the test tube rack 161 and the spacers 162. Blood collection tubes are inserted into the corresponding spacers 162 and mounting holes 163. An inverted conical pressure ring 19 is fixed above the outside of the blood collection tube. Pressure buckle components 18 are respectively snapped on both sides of the pressure ring 19. The vertical positions of the upper and lower mounting holes 163 are corresponding. The mounting holes 163 are used to limit the blood collection tube. The bottom of the bracket 166 is used to support the bottom of the blood collection tube.

[0052] During operation, blood collection tubes are inserted one by one into the corresponding mounting holes 163 of the tube rack 161 and the spacer 162. The mounting holes 163 are used to limit the tubes to keep them vertical and prevent them from tilting or shaking.

[0053] As a further embodiment of the present invention, slides 17 are respectively provided on both sides of the mounting hole 163 in the test tube rack 161. The buckle assembly 18 includes a stop block 181 and a push block 183. The stop block 181 and the push block 183 slide in the slide 17 on the same side. The opposing surfaces of the stop block 181 and the push block 183 are flat, and the side away from each other is conical. The flat part of the bottom of the stop block 181 overlaps with the flat part of the top of the inverted conical pressure ring 19. Two guide rods 182 are fixed to the bottom of the stop block 181. The push block 183 slides through the bottom of the two guide rods 182. Two springs 184 are fixed between one side of the stop block 181 and the inner wall of the slide 17. A top block 20 slides inside the spacer 162. The top of the top block 20 is provided with a ball groove and overlaps with the bottom of the blood collection tube. An elastic telescopic rod 21 is fixed to the bottom of the top block 20, and the bottom end of the elastic telescopic rod 21 is fixed to the bottom of the bracket 166.

[0054] During operation, when the blood collection tube is limited, the pressure ring 19 completely passes through the stop block 181 and is located below. The stop block 181 is always extended outward under the pre-tightening force of the spring 184, and together with the top block 20, it supports the top of the blood collection tube, so that the stop block 181 can firmly abut against the pressure ring 19, preventing the blood collection tube from moving or falling off in the vertical direction.

[0055] When removing the blood collection tube from the test tube rack 161, press the top of the blood collection tube to move the pressure ring 19 downward and through the push block 183. The elastic force of the elastic telescopic rod 21 supports the top block 20, which in turn lifts the blood collection tube and the pressure ring 19 together. At the same time, the pressure ring 19 pushes the push block 183 above it to move upward outside the two guide rods 182 until the opposite surfaces of the push block 183 and the stop block 181 are in contact. This allows the pressure ring 19 to pass through the connection between the push block 183 and the stop block 181 and lift the blood collection tube, thus facilitating the quick removal of the blood collection tube.

[0056] Working principle of this invention:

[0057] During use, the angle of the arm support 2 can be adjusted by adjusting the component 4 to meet the blood collection needs of different patients. When adjusting, the operator holds the handle 406 between the two levers 405 and pulls it upward to make the levers 405 rotate around the pin and disengage from the currently engaged locking hole 407 on the base plate 401. At this time, the support plate 403 can freely deflect around the rotation axis 402 at the end of the base plate 401. According to the patient's height, body shape and blood collection posture, the arm support 2 is adjusted to a suitable tilt angle to ensure that the patient's arm is naturally relaxed and the blood vessels are full after placement. After the adjustment is completed, the handle 406 is released and the levers 405 reset under their own gravity and engage in the corresponding locking hole 407 on the base plate 401, thereby locking the angle between the support plate 403 and the arm support 2. Finally, the arm support 2 is fixed in a tilted position. The patient places their arm on the arm support 2 at the locked angle. The internal retaining groove 3 is located at the lowest point. The retaining groove 3 limits the arm and can prevent the hand from sliding down after the arm is tilted, thus affecting the normal blood collection work.

[0058] Medical staff complete disinfection and puncture blood collection on the corresponding side of the arm support 2. After blood collection, the blood collection tube containing the blood sample is immediately removed from the blood collection needle. The door 11 of the cold storage box 1 and the cylinder door 10 of the inner cylinder 6 are opened. The blood collection tube is inserted into the mounting hole 163 of the pre-positioned test tube rack 161 to ensure that the test tube is vertically fixed. After the sample transfer is completed, the cylinder door 10 and the box door 11 are closed to keep the sample in a cold storage environment. If batch collection is required, disinfection supplies, empty test tubes and other consumables can be temporarily placed on the shelf 5 at the top of the cold storage box 1 to improve the convenience of operation. The test tube rack 161 of the material support component 16 is connected to the insertion hole 144 of the outer tooth ring 143 in the support component 14 through the insertion rod 165, which can quickly realize the assembly and disassembly of the test tube rack 161 and facilitate batch sample replacement.

[0059] To prevent sedimentation and condensation of samples during static placement, the motor 127 in the oscillating assembly 12 is activated. The output shaft of the motor 127 drives the connecting plate 126 to rotate, which in turn drives the deflector 125 to perform a circular motion. The deflector 125 slides through the sliding hole 124 of the deflector rod 121. When the deflector 125 moves in a circular motion, it drives the deflector rod 121 to reciprocate around the fixed shaft 122. Since the fixed shaft 122 is fixed to the bottom of the inner wall of the refrigerated storage box 1 by a rotary bearing 123, the reciprocating deflection of the deflector rod 121 is improved. To ensure stability, the sliding column 129 in the sliding hole 124 of the deflection rod 121 slides back and forth with the deflection rod 121. At the same time, the deflection block 128 at the top of the sliding column 129 drives the turntable 8 to reciprocate around the support bearing 9. Since the column 13 is fixed at the top center of the turntable 8 and its top is rotatably connected to the top of the inner wall of the cold storage box 1 through the bushing, the reciprocating rotation of the turntable 8 will drive the column 13 to reciprocate and revolve synchronously, thereby driving the two sets of support components 14 on the outside of the column 13 to reciprocate and revolve as a whole.

[0060] When the support assembly 14 revolves with the column 13, the outer gear ring 143 outside the support frame 141 in the support assembly 14 meshes with the inner gear ring 15 fixed to the inner wall of the inner cylinder 6. Since the inner gear ring 15 is fixed, the outer gear ring 143 will be driven by the meshing force of the inner gear ring 15 during its reciprocating revolution, rotating around its own axis. The outer gear ring 143 is rotatably connected to the support frame 141 through two upper and lower limit bearings 142 to ensure smooth rotation. Since the test tube rack 161 is fixed by inserting the insertion rod 165 into the insertion hole 144 of the outer gear ring 143, the rotation of the outer gear ring 143 will drive the test tube rack 161 and the blood collection tubes inside the rack to rotate synchronously. During the reciprocating revolution of the outer toothed ring 143, the test tube rack 161 drives the internal sample test tubes to rotate again. Based on this, the blood collection test tubes simultaneously reciprocate around the column 13 and continuously rotate on their own axis in the refrigerated environment, causing the blood sample in the test tube to generate continuous dynamic flow, breaking the condition of sedimentation of formed elements caused by gravity. At the same time, the dynamic flow can promote the uniform mixing of blood and anticoagulant in the test tube, avoid local aggregation of anticoagulant, effectively inhibit sample precipitation and coagulation from a physical level, and ensure that the sample composition is uniform and stable. The entire dynamic mixing process is completed in the refrigerated storage box 1, which can maintain the low temperature storage environment of the sample and avoid temperature fluctuations from affecting the sample quality.

[0061] When samples need to be sent for testing, first turn off the motor 127 of the swing component 12. After the column 13 and the support component 14 stop moving, open the door 11 of the cold storage box 1 and the door 10 of the inner cylinder 6. Use a tool or hold the top of the test tube rack 161 loaded with blood collection tubes. Use a tool or your hand to reach into the holding hole 164 and pull it vertically upwards smoothly. This will gradually disengage the insertion rod 165 at the bottom of the test tube rack 161 from the insertion hole 144 of the outer toothed ring 143 in the support component 14. After the insertion rod 165 is completely disengaged from the insertion hole 144, remove the entire material support component 16, including the blood collection tubes, from the perforation of the support frame 141. Place the removed material support component 16 on a clean operating table and pull out the blood collection tubes one by one from the mounting hole 163 of the test tube rack 161 to complete the sample delivery for testing. Alternatively, the test tube rack 161 can be directly sent to the testing institution for batch testing.

[0062] When blood collection tubes need to be stored, insert the blood collection tubes one by one into the corresponding mounting holes 163 of the test tube rack 161 and the spacer 162. Use the limiting effect of the mounting holes 163 to keep the test tubes vertical and prevent them from tilting or shaking. Hold the top of the test tube rack 161 with the pre-installed test tubes and align it with the through hole in the middle of the support frame 141 of the support component 14. Align the several insertion rods 165 at the bottom of the test tube rack 161 with the corresponding insertion holes 144 of the outer toothed ring 143 in the support component 14. Press the test tube rack 161 vertically downward until the insertion rods 165 are fully inserted into the insertion holes 144. This achieves the insertion and fixation of the test tube rack 161 and the outer toothed ring 143, thereby completing the installation and positioning of the material support component 16 on the support component 14. This ensures that the test tube rack 161 moves synchronously with the outer toothed ring 143 during the subsequent dynamic mixing process.

[0063] After the bottom end of the blood collection tube passes through the mounting hole 163 and contacts the top block 20, its top ball groove tightly overlaps with the bottom end of the blood collection tube, causing the elastic telescopic rod 21 to retract. Since the blood collection tube passes through the spacer 162, the spacer 162 guides and limits the blood collection tube, improving its installation stability. When the blood collection tube is inserted to the preset depth, the top plane of its external inverted conical pressure ring 19 precisely fits with the bottom plane of the stop block 181 of the buckle assembly 18, allowing the pressure ring 19 to squeeze. The stop block 181, via the guide rod 182, drives the push block 183 to move into the slide 17 and compress the spring 184 until the pressure ring 19 completely passes through the stop block 181 and is in the lower position. Under the preload of the spring 184, the stop block 181 remains extended outwards, working in conjunction with the top block 20 to support the top of the blood collection tube. This ensures that the stop block 181 firmly abuts against the pressure ring 19, preventing the blood collection tube from shifting or falling off vertically. If it needs to be removed... Pressing the top of the blood collection tube causes the pressure ring 19 to move downwards, bringing the conical surface at the bottom of the pressure ring 19 into contact with the flat surface at the top of the push block 183. This allows the push block 183 to move into the slide 17. When the pressure ring 19 passes through the push block 183 and is in the lower position, the force of the spring 184 pushes the stop block 181 out of the slide 17. The stop block 181 then horizontally pushes the push block 183 out along with the stop block via the limit rod. Afterwards, the blood collection tube is no longer pressed, and the flow continues. The elastic force of the elastic telescopic rod 21 supports the top block 20, which in turn lifts the blood collection tube and the pressure ring 19 together. At the same time, the pressure ring 19 pushes the push block 183 above it to move upward outside the two guide rods 182 until the opposing surfaces of the push block 183 and the stop block 181 are in a close contact state, so that the pressure ring 19 can pass through the connection between the push block 183 and the stop block 181. This releases the locking state of the pressure ring 19 and the blood collection tube, so that the blood collection tube can be taken out of the tube rack 161.

Claims

1. A blood sample collection device, comprising a refrigerated storage box (1), characterized in that: An armrest (2) is provided on one side of the refrigerated storage box (1). A retaining groove (3) is provided inside the armrest (2). An adjustment component (4) is fixedly connected to the bottom of the armrest (2). The adjustment component (4) is installed at the lowest point of the refrigerated storage box (1). An inner cylinder (6) is fixedly connected inside the refrigerated storage box (1). A fixing plate (7) is fixedly connected to the bottom of the inner cylinder (6). The fixing plate (7) is fixed at the lower position inside the refrigerated storage box (1). A support bearing (9) is snapped into the middle of the fixing plate (7). A turntable (8) is rotatably connected inside the support bearing (9). The turntable (8) is located at the opening at the bottom of the inner cylinder (6). A swing component is fixedly connected to the center of the bottom of the turntable (8). (12) The swing assembly (12) is installed at the bottom of the inner wall of the cold storage box (1). A column (13) is fixedly connected to the center of the top of the turntable (8). The top of the column (13) passes through the opening at the top of the inner cylinder (6) and is rotatably connected to the top position of the inner wall of the cold storage box (1) through the bushing. A set of support assemblies (14) are fixedly connected to the upper and lower sides of the outside of the column (13), and there are four support assemblies (14) in each set. The support assembly (14) is fitted with a material support assembly (16) inside. The inner cylinder (6) is fixed with an internal gear ring (15) corresponding to the position of the two sets of support assemblies (14). The outside of each set of support assemblies (14) is meshed with the same internal gear ring (15).

2. The blood sample collection device according to claim 1, characterized in that: The armrest (2) is installed at an angle on the adjustment assembly (4), and the retaining groove (3) inside the armrest (2) is located at the lowest point. The adjustment assembly (4) includes a base plate (401) and is fixed to the lowest point on the refrigerated storage box (1). There are two base plates (401), and the ends of the two base plates (401) are equipped with rotating shafts (402). The positions of the two base plates (401) near the lowest point of the armrest (2) are rotatably connected by the rotating shafts (402). The arm support (2) is fixed on two support plates (403) and a support rod (404) is fixedly connected between the two support plates (403). A locking rod (405) is rotatably connected to the middle of the support plate (403) through a pin. A handle (406) is fixed between the two locking rods (405). Several locking holes (407) are opened on the base plate (401), and the locking rod (405) is locked in one of the locking holes (407).

3. The blood sample collection device according to claim 1, characterized in that: A shelf (5) is installed at the highest point of the top of the refrigerated storage box (1), and a door (11) is installed on the back of the refrigerated storage box (1). Two cylinder doors (10) are installed on the outside of the inner cylinder (6) at the position corresponding to the door (11), and the two cylinder doors (10) are respectively located above the two sets of support components (14).

4. The blood sample collection device according to claim 1, characterized in that: The swing assembly (12) includes a deflection rod (121), one end of which is fixedly connected to a fixed shaft (122). A rotary bearing (123) is sleeved on the bottom end of the fixed shaft (122). The rotary bearing (123) is engaged with the bottom of the inner wall of the refrigerator (1). A sliding hole (124) is provided inside the deflection rod (121). A lever (125) slides through the sliding hole (124) at a position away from the fixed shaft (122). A connecting plate (126) is fixedly connected to the bottom end of the lever (125). A motor (127) is fixedly connected to the bottom side of the connecting plate (126) away from the lever (125). The motor (127) is fixedly connected to the bottom of the inner wall of the refrigerator (1).

5. A blood sample collection device according to claim 4, characterized in that: A sliding column (129) slides through the middle of the sliding hole (124), and a deflection block (128) is fixedly connected to the top of the sliding column (129). The side of the top of the deflection block (128) away from the sliding column (129) is fixedly connected to the bottom of the turntable (8).

6. A blood sample collection device according to claim 1, characterized in that: The support assembly (14) includes a support frame (141), one end of which is fixed to the outside of the column (13). Limit bearings (142) are fixed at the top and bottom of the support frame (141), and an external gear ring (143) is sleeved and rotated between the two limit bearings (142). The external gear ring (143) meshes with the internal gear ring (15).

7. A blood sample collection device according to claim 6, characterized in that: The material support assembly (16) includes a test tube rack (161), and the test tube rack (161) is inserted into the through hole in the middle of the support frame (141). Several insertion rods (165) are fixed at the bottom edge of the test tube rack (161). Insertion holes (144) are opened in the outer gear ring (143) corresponding to the positions of several insertion rods (165). The insertion rods (165) are inserted into the locking holes (407) in the outer gear ring (143).

8. A blood sample collection device according to claim 7, characterized in that: The test tube rack (161) has several gripping holes (164) at the top edge. The bottom of the test tube rack (161) is fixedly connected to a bracket (166). The bottom of the bracket (166) is fixed with several spacers (162). The test tube rack (161) and the spacers (162) are respectively provided with several mounting holes (163). Blood collection tubes are inserted into the corresponding spacers (162) and mounting holes (163). An inverted conical pressure ring (19) is fixed above the outside of the blood collection tube. The pressure ring (19) is secured with a snap fastener assembly (18) on both sides. The vertical positions of the upper and lower mounting holes (163) are corresponding. The mounting holes (163) are used to limit the blood collection tube. The bottom of the bracket (166) is used to support the bottom of the blood collection tube.

9. A blood sample collection device according to claim 8, characterized in that: The test tube rack (161) has slides (17) on both sides inside the mounting hole (163). The snap fastening assembly (18) includes a stop (181) and a push block (183). The stop (181) and the push block (183) slide in the slide (17) on the same side. The opposing surfaces of the stop (181) and the push block (183) are flat, and the side away from each other is conical. The flat part at the bottom of the stop (181) overlaps with the flat part at the top of the inverted conical pressure ring (19). Two guide rods (182) are fixed at the bottom. The push block (183) slides through the bottom of the two guide rods (182). Two springs (184) are fixed between one side of the stop block (181) and the inner wall of the slide (17). A top block (20) slides inside the spacer (162). The top of the top block (20) has a ball groove and overlaps with the bottom of the blood collection tube. An elastic telescopic rod (21) is fixed at the bottom of the top block (20), and the bottom end of the elastic telescopic rod (21) is fixed to the bottom inside the bracket (166).

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