Automatic uniform mixing equipment for blood sampling

Abstract

The invention relates to the technical field of sample dilution, dispersion or mixing, and discloses blood sampling automatic uniform mixing equipment which comprises a conveying line, a blood sample placing mechanism mounted on the conveying line and a uniform mixing area located on one side of the conveying line. The blood sample placing mechanism comprises a fixing block and a floating blood sampling frame, the fixing block is fixed to the conveying surface of the conveying line, the floating blood sampling frame is vertically and slidably connected with the fixing block, and an elastic reset piece is arranged on the floating blood sampling frame; protrusions are arranged on the uniform mixing area at intervals, and rolling pieces capable of making contact with the protrusions are arranged at the bottom of the floating blood sampling frame. The problem that the overall efficiency is low due to the fact that an existing blood sampling and mixing process depends on medical staff is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of diluting, dispersing or mixing samples, and particularly relates to an automatic blood sampling and mixing device. Background Art

[0002] In traditional blood sampling methods, additives are pre-added to blood collection tubes. After medical staff complete the blood sampling operation, they need to manually shake the blood collection tubes to mix the samples. Generally, they uniformly manually shake 5 - 8 times to ensure that the blood is fully mixed with the additives and prevent blood coagulation. After completing the shaking operation, the blood collection tubes are placed on a test tube rack and waiting for workers to transport them to the specimen processing room. In the specimen processing room, the blood samples are centrifuged to separate components such as serum or plasma for subsequent medical tests. This traditional blood collection process has been used for many years in practical applications, and medical staff are relatively familiar with it, and to a certain extent, it can meet the requirements of routine blood collection. However, with the continuous development of medical technology and the increasing requirements for detection accuracy and efficiency, its limitations have gradually emerged. The existing technology still has the following problems:

[0003] 1. When collecting blood samples from some patients, multiple tubes of blood samples need to be taken with different tubes; the cap colors of different blood collection tubes are different for easy distinction. For example, some blood collection tubes contain anticoagulants, some contain coagulants, and there are also conventional blood collection tubes without any additives; after blood collection, the blood collection tubes with additives need to be manually shaken. When collecting multiple tubes of blood samples at the same time and all need to be shaken for blood sample mixing, the manual shaking workload of medical staff is large, increasing the labor intensity of medical staff. Especially in the case of a large number of blood collection patients, the impact of this labor intensity is more obvious.

[0004] 2. The cap colors of different blood collection tubes are different, and the reagents added inside are also different (anticoagulants, coagulants, no additives, etc.). In the busy work of medical staff, due to negligence or fatigue, etc., they may forget to manually shake the blood collection tubes with additives in time, or confuse the treatment methods of different types of blood collection tubes, resulting in insufficient or incorrect mixing of blood and additives, affecting the quality of blood samples, and further affecting the accuracy of subsequent medical tests.

[0005] In summary, the entire blood sampling and mixing process relies relatively heavily on the operation of medical staff and lacks automated processing means. In the context of the current increasing requirements for detection accuracy and efficiency, this method is difficult to achieve a fast, efficient, and standardized blood collection process, cannot well meet the needs of the development of medical technology, and limits the overall efficiency improvement of blood collection and detection work; especially in the case of a large number of patients in large hospitals, its disadvantages are particularly obvious. Summary of the Invention

[0006] The present invention aims to provide an automatic blood sampling and mixing device to solve the problem that the existing blood sampling and mixing process relies on medical staff, resulting in low overall efficiency.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] An automatic blood sampling and mixing device includes a conveyor line, a blood sample placement mechanism installed on the conveyor line, and a mixing area located on one side of the conveyor line; the blood sample placement mechanism includes a fixed block and a floating blood collection rack. The fixed block is fixed to the conveying surface of the conveyor line, the floating blood collection rack is vertically slidably connected to the fixed block, and an elastic reset member is provided on the floating blood collection rack; protrusions are arranged at intervals in the mixing area, and rolling members that can contact the protrusions are provided at the bottom of the floating blood collection rack.

[0009] Preferably, as an improvement, a vertical chute is provided inside one side of the fixed block, and a horizontal through hole is provided along the vertical direction perpendicular to the vertical chute; a vertical slider is provided on one side of the floating blood collection rack, and the vertical slider is fixedly connected to the floating blood collection rack through a horizontal slider; the vertical slider and the horizontal slider are respectively slidably connected to the vertical chute and the horizontal through hole, and the elastic reset members are provided between both ends of the vertical slider and the inner walls of both ends of the vertical chute.

[0010] Preferably, as an improvement, the floating blood collection rack includes a rack body and placement holes on the rack body for placing blood collection tubes. An extension rack is detachably connected to the top of the rack body. A stepped through hole is provided in the area of the extension rack corresponding to the placement holes, and the diameter of the stepped through hole increases in sequence in the direction away from the placement holes.

[0011] Preferably, as an improvement, the mixing area includes a mixing disk and a driving member for driving the mixing disk to rotate. The mixing disk is a regular polygon structure, at least one side of the top surface of the mixing disk is a blank position, and the protrusions are arranged in rows near each side; any one or more of the intervals between each row of protrusions, the height of the protrusions, the shape of the protrusions, and the number of protrusions are different.

[0012] Preferably, as an improvement, it further includes a control unit and a detection area for detecting the blood collection tube before entering the mixing area. The detection area includes a detection element for identifying the color of the blood collection tube cap or the barcode; the control unit is used to receive the signal of the detection element and control the rotation of the driving member; color blocks are provided in the middle of each side of the mixing disk, and a position detection unit for detecting the color of the color blocks is also provided beside the mixing disk.

[0013] Preferably, as an improvement, the protrusions are detachably arranged on the mixing disk.

[0014] Preferably, as an improvement, the side of the protrusion facing the input end of the conveyor line is an outwardly extended inclined surface.

[0015] Beneficial effects:

[0016] 1. By setting a conveyor line at the blood collection window, this technology can uniformly convey blood collection tubes to the body fluid temporary storage area. At the same time, the mixing action of the blood collection tubes is realized during the conveying process, saving the time for blood collection personnel to manually carry the blood collection rack on the blood collection window to the body fluid temporary storage area and manually shake the blood collection tubes, which is more conducive to the resource utilization of large hospitals.

[0017] 2. By setting a floating blood collection rack, when the floating blood collection rack passes through the mixing area, it can be lifted by the protrusions spaced on the surface. When it enters between two adjacent protrusions, it is reset downward by the elastic resetting member. Using such a gap design, the floating blood collection rack can shake up and down multiple times when passing through the mixing area, thereby realizing the mixing action of the blood sample in the blood collection tube. The overall design is simple and the cost is low, which is conducive to popularization.

[0018] 3. An extension rack is set at the top of the frame body of the floating blood collection rack, which can expand its application range. In addition, the extension rack of this technology is fixed to the top of the frame body in a detachable connection manner. If the installed scenario uses more blood collection tubes of the same type, it can be removed and only installed in multi-purpose scenarios, making the equipment installation more diversified. When installing this equipment in a complex hospital scenario, the extension rack can be buckled and installed on the top of the frame body, so that lids of different diameters can be hung and limited at the through-hole areas at different steps, broadening its applicability.

[0019] 4. This technology can also adapt to refined medical scenarios and intelligently use different shaking frequencies and numbers of times according to blood collection tubes of different colors. For example, for blood collection tubes containing coagulant, the traditional manual up-and-down mixing is 5 - 8 times. Appropriate shaking can make the coagulant contact the blood coagulation factors faster and play a role, accelerating blood coagulation and serum separation. The blood collection tube for coagulation function detection contains sodium citrate and usually needs to be mixed up and down 3 - 4 times. Since the anticoagulant effect of sodium citrate is relatively weak and the requirements for blood samples in coagulation function detection are very strict, excessive shaking may activate the coagulation factors, resulting in deviation of the detection results. Therefore, a lower shaking frequency can not only ensure that the anticoagulant is basically mixed evenly with the blood but also minimize the impact on the coagulation system to ensure the accuracy of the detection results. Different from the caps of the above-mentioned blood collection tubes, this technology combines a detection area and a mixing area with a regular polygon structure. By using a detection element (such as a camera) to collect the color of the blood collection tube cap, the control unit receives the signal to control the driving part to rotate, so that the corresponding side of the mixing disk is parallel to the conveying line. The different numbers and intervals of the protrusions above different sides of the mixing disk can change the number and frequency of shaking, making the whole blood collection shaking more refined and more conducive to the accuracy of subsequent detection results. At the same time, this technology is also provided with an alignment detection unit, which can use the alignment detection unit to assist in realizing the rotational centering of the mixing disk.

[0020] 5. The protrusion in this technology can also be set to a structure with one side being an inclined plane, and this inclined plane is located on the side facing the input end of the conveying line. When the rolling part contacts the protrusion, it can slowly rise to the top along the inclined plane. Since the other side of the protrusion is not an inclined plane structure that extends outwards, when the rolling part leaves the top of the protrusion, due to the height difference, the elastic part can instantly make the floating blood collection rack move downward to return to its original position, thereby enhancing the shaking effect. At the same time, the protrusion in this technology is fixed in a detachable manner, and the protrusion can be disassembled and replaced as needed.

[0021] 6. This technology can also achieve alternating mixing operations, making the mixing effect of blood samples better. By arranging vibration ridges at intervals in the areas between adjacent protrusions, when the floating blood collection rack passes over the protrusions, it can perform large-amplitude up-and-down shaking, followed by small-amplitude mixing vibration, alternating in turn. The inventor found that the advantage of this is that it can not only improve the mixing effect of blood samples and additives but also reduce the risk of hemolysis, meeting the refined requirements for blood sample processing in the blood collection field and helping to improve the detection quality. More notably, the alternating mixing operation of this technology does not rely on expensive instruments but can be achieved by a simple mechanical structure, with lower costs and being conducive to promotion.

[0022] In summary, adopting this technology can realize the intelligence of the entire blood collection process, improve the accuracy and efficiency of detection, and is especially suitable for the situation where there are many patients in large hospitals. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a top view of Embodiment 1 of the present invention.

[0024] Figure 2 It is Figure 1 a top view in which multiple blood collection tubes can be placed.

[0025] Figure 3 It is Figure 1 a top view of the mixing area and the collection box in it.

[0026] Figure 4 It is Figure 3 a left view of the protrusion in it.

[0027] Figure 5 It is Figure 3 a cross-sectional view of the floating blood collection rack in it.

[0028] Figure 6 It is Figure 1 a left view of the conveyor line in it.

[0029] Figure 7 This is a schematic structural diagram of the protrusion in Embodiment 2 of the present invention.

[0030] Figure 8 This is a top view of the mixing area and the collection box in Embodiment 3 of the present invention.

[0031] Figure 9 It is Figure 8 a bottom view of the mixing tray in it.

[0032] Figure 10 It is Figure 8 a front view of the floating blood collection rack in it.

[0033] Figure 11 This is a layout top view of the conveyor line in Embodiment 4 of the present invention.

[0034] Figure 12 This is a schematic structural diagram of a protrusion in Embodiment 5 of the present invention.

[0035] Figure 13 This is a schematic structural diagram of another protrusion in Embodiment 5 of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0036] The following is a further detailed description through specific embodiments:

[0037] The reference numerals in the accompanying drawings of the specification include: conveying line 1, protective cover 11, placement opening 12, floating blood sampling rack 2, fixing block 21, vertical sliding groove 211, horizontal through hole 212, vertical slider 22, horizontal slider 23, frame body 24, placement hole 241, extension rack 25, stepped through hole 251, rolling member 26, mounting ear 27, mixing area 3, fixing strip 31, protrusion 32, mixing disk 33, blank position 331, color block 34, collection box 4, strip-shaped groove 41, opening 42, window sill 5, spring 6, detection area 7, blood sampling test tube 8, first camera 9, second camera 91, convex stripe 10.

[0038] Embodiment 1

[0039] As shown in the attached Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 shown, an automatic blood sample mixing device includes a conveying line 1, a blood sample placement mechanism installed on the conveying line 1, a collection box 4 located at the output end of the conveying line 1, and a mixing area 3 located on one side of the conveying line 1. The conveying line 1 can be placed at any required position as needed. In this embodiment, it is illustrated by taking the placement in the hospital blood sampling area as an example. There is a blood sampling window and a window sill 5 on the blood sampling window in the blood sampling area. The conveying line 1 is arranged along the side wall of the window sill 5 on one side of the medical staff's seat, and the frame of the conveying line 1 is fixed on the wall below the window sill 5. A protective cover 11 is arranged on the conveying line 1. The top wall of the protective cover 11 is made of a transparent material, which is convenient for understanding the internal transmission situation. Combining Figure 6 shown, a placement opening 12 is opened near the left side of the top wall of the protective cover 11, which is convenient for medical staff to put the blood sampling test tube 8 from here. The conveying line 1 is a chain-type conveying line or a conveyor belt. Combining Figure 5 shown, the blood sample placement mechanism includes a fixing block 21 and a floating blood sampling rack 2. The fixing block 21 is fixed to the conveying surface of the conveying line 1. When the conveying line 1 is a chain-type conveying line 1, there is a mounting block extending towards the chain side on the chain link, and the fixing block 21 is fixed to the mounting block by screws; when the conveying line 1 is a conveyor belt, the fixing block 21 is bonded or screwed to the surface of the conveyor belt; in this embodiment, the latter is specifically selected.

[0040] A vertical sliding groove 211 is arranged inside one side of the fixing block 21, and a horizontal through hole 212 communicating with it is arranged along the vertical direction perpendicular to the vertical sliding groove 211; a vertical slider 22 is arranged on one side of the floating blood sampling rack 2, and the vertical slider 22 and the floating blood sampling rack 2 are fixedly connected through a horizontal slider 23; the vertical slider 22 and the horizontal slider 23 are respectively slidably connected to the vertical sliding groove 211 and the horizontal through hole 212, and elastic resetting members are arranged between the upper and lower ends of the vertical slider 22 and the inner wall of the vertical sliding groove 211. The elastic resetting member in this embodiment is a spring 6.

[0041] The floating blood collection rack 2 includes a rack body 24 and a placement hole 241 located on the rack body 24 for placing the blood collection tube 8. A expansion rack 25 is connected to the top of the rack body 24. The expansion rack 25 is in a plate-like structure. A stepped through hole 251 or a flared through hole is provided in the area of the expansion rack 25 corresponding to the placement hole 241. In this embodiment, the former is preferably used, and the diameters of the stepped through hole 251 increase in sequence in the direction away from the placement hole 241. A clamping protrusion is provided at the bottom of the expansion rack 25, and a groove is provided on the top surface of the rack body 24. The clamping protrusion can be clamped and fixed in the groove, thereby realizing the detachable connection between the expansion rack 25 and the rack body 24. A rolling member 26 that can contact the mixing area 3 is provided at the bottom of the floating blood collection rack 2. The rolling member 26 is a ball or a roller. In this embodiment, the roller is taken as an example. On the bottom of the side of the rack body 24 away from the conveyor line 1, relatively arranged mounting ears 27 are provided downward. Relatively arranged mounting through holes are provided on the mounting ears 27. A roller shaft is rotatably mounted in the through hole, and a roller body is fixed on the roller shaft; thus, the floating blood collection rack 2 is in rolling contact with the mixing area 3.

[0042] Combined Figure 1 and Figure 3 As shown, the mixing area 3 includes a fixed strip 31 and protrusions 32 fixedly arranged in rows on the top surface of the fixed strip 31, and the adjacent protrusions 32 are arranged at intervals; the height of the protrusions 32 is 1-5 cm (the height here is the vertical distance from the highest point to the bottom surface). After testing, shaking up and down within this height range can mix well and is not likely to generate too many foams to cause influence. The two sides of the top of the protrusion 32 are arc-shaped or both sides are inclined planes, which is convenient for the rollers on the floating blood collection rack 2 to contact with it; in this embodiment, the latter is specifically taken as an example. In other embodiments other than this embodiment, the protrusion 32 is detachably fixed on the fixed strip 31. Specifically, two card slots are provided on the fixed strip 31, and two clamping protrusions are provided at the bottom of the protrusion 32. The clamping protrusions are inserted and tightened in the card slots so that the clamping protrusions are clamped, thereby realizing the fixation of the protrusion 32; this setting can facilitate the replacement of the protrusion 32.

[0043] The collection box 4 includes four side walls, a top wall and a bottom wall. Its interior is divided into upper and lower layers. The upper layer is a circumferential inclined plane, forming a funnel shape; a strip-shaped groove 41 is provided at the lowest center of the bottom surface of the upper layer, and the strip-shaped groove 41 can allow a blood collection tube 8 to pass through; the lower layer of the collection box 4 is used to place a collection frame or a collection structure for collecting the blood collection tubes 8, and is used to collect the blood collection tubes 8 leaking from the upper layer. An opening 42 is provided on the side wall of the upper layer of the collection box 4. The conveyor line 1 extends into the upper layer of the collection box 4 from the opening 42, and the fixed strip 31 is fixed on the inner wall of the collection box 4 near the opening 42. The fixing method can be any one of integral molding, welding, and screw fixing.

[0044] During use, after the medical staff finishes blood collection, the blood collection tube 8 is placed along Figure 6The placement opening 12 in is placed in Figure 5 on the frame body 24 in. When the conveyor line 1 conveys the frame body 24 to the collection box 4, the rolling member 26 (i.e., the roller) will contact the protrusion 32 during the forward movement, as Figure 4 shown. The protrusion 32 makes the frame body 24 move upward. When the rolling member 26 leaves the protrusion 32, the spring 6 makes the frame body 24 move downward, thus realizing an up-and-down shaking; since multiple protrusions 32 are arranged at intervals, the entire floating blood collection rack 2 will achieve multiple up-and-down shakes, thereby realizing the mixing effect of the blood collection tubes 8. In other embodiments other than this embodiment, the mixing area 3 can also be arranged near the placement opening 12. In addition, in other embodiments other than this embodiment, as Figure 2 shown, the placement holes 241 on each blood collection rack can also be set to multiple, for example, three, so as to increase the number of blood collection tubes 8 placed, and thus multiple blood collection tubes 8 can be vibrated and mixed simultaneously.

[0045] Embodiment 2

[0046] The difference between this embodiment and Embodiment 1 is that, as Figure 7 shown, the side of the protrusion 32 facing the input end of the conveyor line 1 is an outwardly extending inclined plane, and the other side is perpendicular to the bottom surface. When the rolling member 26 contacts the protrusion 32, it can slowly rise to the top along the inclined plane. And because the other side of the protrusion 32 is a structure perpendicular to the bottom surface, when the rolling member 26 leaves the top of the protrusion 32, due to the height difference, the spring 6 can instantly make the floating blood collection rack 2 move downward to return to its original position, thereby improving the shaking effect. Especially for those with high shaking requirements, this setting method can be adopted; while for those with slow shaking requirements, a design with inclined planes on both sides can be adopted.

[0047] Embodiment 3

[0048] As Figure 8 , Figure 9 , Figure 10 shown, the difference between this embodiment and Embodiment 1 or 2 is that the structure of the mixing area 3 is different. This design can refine the mixing operation of blood samples, so that the protrusions 32 in the mixing area 3 can be switched according to different blood collection tubes 8. The mixing area 3 includes a mixing disk 33 and a driving member for driving the mixing disk 33 to rotate. The driving member is a motor, and the motor is fixedly arranged on the collection box 4 through a frame. The mixing disk 33 is a regular polygon structure. For example, it can be an equilateral triangle, a quadrilateral, a pentagon, a hexagon, an octagon, etc.; in this embodiment, an equilateral triangle is specifically taken as an example for illustration. One side of the top surface of the mixing disk 33 is a blank position 331, three protrusions 32 are arranged at intervals on one side, and five protrusions 32 are arranged at intervals on the other side; the intervals between the protrusions 32 on each side are different, and the interval between the three-protrusion side is greater than the interval between the five-protrusion side.

[0049] A detection area 7 is provided on the outer wall of the collection box 4 near the opening 42. The detection area 7 includes a detection element fixedly installed by screws for identifying the color or barcode of the blood collection test tube cap. The detection element in this embodiment is specifically a camera. Taking the identification of the color of the blood collection test tube cap as an example, for the convenience of distinction, this camera is named the first camera 9. This technology also includes a control unit, and the control unit is a PLC controller or a single-chip microcomputer. In this embodiment, it is a PLC.

[0050] Blood collection test tube caps generally come in colors such as blue, black, purple, green, gray, orange, yellow, and red. The red blood collection test tube 8 has no additives and is usually used for the inspection of ordinary routine biochemical serum; the other test tubes contain additives. For example, the purple blood collection test tube 8 contains an anticoagulant to prevent blood clotting; the orange blood collection test tube 8 contains a coagulant accelerator to accelerate blood clotting; the black blood collection test tube 8 is mainly used for the detection of blood coagulation mechanism and contains sodium citrate. The number of shakes can be designed by using the number of protrusions. For example, the red one shakes 0 times, the black one shakes 3 times, and the other colored blood collection test tubes shake 5 times uniformly; in this technology, the side of the mixing disk 33 with five protrusions is defaulted as the starting position, and in clockwise order, it is the five-protrusion side, the blank position 331, and the three-protrusion side.

[0051] Combined Figure 9 As shown, a positioning detection unit is provided below the middle of the right side of the mixing disk 33. The positioning detection unit is the second camera 91, and the second camera 91 is fixed on the inner wall of the collection box 4 through a bracket. Color blocks 34 are provided at the center of the bottom surface of each side of the mixing disk 33, and the shooting direction of the second camera 91 is vertically upward to shoot the color blocks 34 on the bottom surface of the mixing disk 33. The color block 34 below the blank position 331 is white, the color block 34 below the three-protrusion side is black, and the color block 34 below the five-protrusion side is brown. In order to ensure the stability of the ambient light and the shooting effect of the first camera 9, a lighting system, such as an LED light source, is provided in the detection area 7; similarly, an LED light source can also be provided in the area of the second camera 91. The first camera 9 and the second camera 91 are both electrically connected to the control unit.

[0052] During use, the blood collection tube 8 is placed on the frame body 24 from the placement opening 12, and the blood collection tube 8 is slowly conveyed forward by the conveying line 1. Taking the black blood collection tube cap as an example, the first camera 9 collects the image information of the blood collection tube cap entering this place. After the control unit receives the information of the first camera 9, it controls the motor of the mixing disc 33 to rotate. When the second camera 91 collects the black color block 34 at the bottom of the mixing disc 33, the control unit receives the signal of the second camera 91 and controls the motor of the mixing disc 33 to stop rotating. When the floating blood collection rack 2 carrying the above black blood collection tube passes above the mixing disc 33, its rolling member 26 (i.e., the roller) will intermittently contact and move up and down with the protrusion 32 on the three protruding sides, thereby realizing the mixing of the sample in the blood collection tube. Similarly, when the first camera 9 collects any color of the blood collection tube other than black and red, as long as the second camera 91 collects the brown color block 34 at the bottom of the mixing disc 33, the control unit controls the motor of the mixing disc 33 to stop rotating; taking green as an example, the first camera 9 collects the image information of the green blood collection tube cap entering this place. After the control unit receives the information of the first camera 9, it controls the motor of the mixing disc 33 to rotate. When the second camera 91 collects the brown color block 34 at the bottom of the mixing disc 33, the control unit receives the signal of the second camera 91 and controls the motor of the mixing disc 33 to stop rotating.

[0053] In summary, during the process of the floating blood collection rack on the conveying line 1 being conveyed forward, the rolling member 26 repeatedly changes between the two states of contacting the protrusion and leaving the protrusion 32, thereby realizing the up-and-down mixing and shaking of the blood collection tube 8. It is worth noting that in this technology, the first camera 9 is at a certain distance from the mixing area 3, and the distance between the two floating blood collection racks 2 is greater than the length of any side of the mixing disc 33. When the latter blood collection tube 8 is slowly conveyed by the conveying line 1 past the detection element, the previous blood collection tube has already left the mixing area 3 in advance; and due to the certain distance between the detection element and the mixing area 3, this distance enables the mixing disc 33 to have completed rotation before the blood collection tube 8 is conveyed from the detection element to the mixing area 3.

[0054] In other embodiments other than this embodiment, for example, the mixing disc 33 is in the structure of a regular octagon, each color corresponds to one side, and the color block 34 below each side corresponds to the color of the corresponding blood collection tube cap, adopting this more refined mixing design.

[0055] Embodiment 4

[0056] The difference between this embodiment and Embodiment 3 is that, as Figure 11As shown, the layout of the blood collection area in this technology is different, and the body fluid temporary storage area of the entire blood collection area is behind it. Therefore, through holes are provided in the partition wall of the body fluid temporary storage area to facilitate the installation and passage of the conveying line 1. It should be noted that in other embodiments other than this embodiment, the layout of the hospital may be changed according to needs, and this technology can be applied to different scenario layouts, and these situations should also fall within the protection scope of this technology.

[0057] Embodiment 5

[0058] The difference between this embodiment and Embodiment 1 or 2 is that, as Figure 12 , Figure 13 shown, vibration ridges 10 are arranged at intervals on the surface at the position between adjacent protrusions 32, so that the floating blood collection rack 2 can have slight vibrations when the roller passes through this area; for example, for samples that need to be shaken 3 to 4 times, 3 protrusions can be set, but vibration ridges 10 are arranged between each protrusion to achieve a cross-mixing effect. The above design makes the entire mixing process be to first perform large-amplitude up-and-down shaking, and then perform small-amplitude mixing vibrations, alternating in turn. The inventor found that the advantage of doing this is that it can not only improve the mixing effect of blood samples and additives, but also, for some inspection items, maximize the protection of the integrity and activity of blood components and improve the reliability of subsequent test results. It can meet the refined requirements for blood sample processing in the blood collection field and help improve the detection quality. More importantly, the alternating mixing operation of this technology does not rely on high-cost instruments, but can be achieved by a simple mechanical structure, with lower costs and is conducive to promotion.

[0059] The above are only the embodiments of the present invention, and the specific technical solutions and / or common knowledge such as characteristics known in the solutions are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A blood sampling automatic mixing device, comprising a conveying line, characterized in that: It also includes a blood sample placement mechanism installed on the conveyor line and a mixing area located on one side of the conveyor line; the blood sample placement mechanism includes a fixed block and a floating blood sampling rack, the fixed block is fixed to the conveying surface of the conveyor line, the floating blood sampling rack is vertically slidably connected to the fixed block, and an elastic reset part is arranged on the floating blood sampling rack; protrusions are arranged at intervals on the mixing area, and a rolling part that can contact the protrusions is arranged at the bottom of the floating blood sampling rack.

2. The blood sampling automatic mixing device according to claim 1, characterized in that: A vertical slide groove is arranged inside one side of the fixed block, and a horizontal through hole is arranged along the vertical direction of the vertical slide groove; a vertical slider is arranged on one side of the floating blood collection stand, and the vertical slider is fixedly connected to the floating blood collection stand through the horizontal slider; the vertical slider and the horizontal slider are respectively slidably connected in the vertical slide groove and the horizontal through hole, and the elastic reset parts are arranged between the two ends of the vertical slider and the two end inner walls of the vertical slide groove.

3. The blood sampling automatic mixing device according to claim 2, characterized in that: The floating blood sampling rack includes a frame body and a placement hole on the frame body for placing a blood sampling tube. The top of the frame body is detachably connected to an expansion frame. The expansion frame is provided with stepped through holes in the area corresponding to the placement hole, and the diameter of the stepped through holes increases gradually in the direction away from the placement hole.

4. The blood sampling automatic mixing device according to claim 3, characterized in that: The mixing area includes a mixing disk and a driving member for driving the mixing disk to rotate. The mixing disk is a regular polygonal structure. At least one side of the top surface of the mixing disk is blank, and the rest of the top surface of the mixing disk is arranged in rows near each edge. The spacing between each row of protrusions, the protrusion height, the protrusion shape, and the number of protrusions are different in any one or more.

5. The blood sampling automatic mixing device according to claim 4, characterized in that: It also includes a control unit and a detection area for detecting the blood collection tube before entering the mixing area, the detection area includes a detection element for identifying the color or barcode of the blood collection tube cap; the control unit is used to receive the signal of the detection element to control the rotation of the driving member; a color block is provided in the middle of each side of the mixing disk, and a positioning detection unit for detecting the color of the color block is also provided next to the mixing disk.

6. The blood sampling automatic mixing device according to claim 5, characterized in that: The protrusion is detachably arranged on the mixing disk.

7. The blood sampling automatic mixing device according to claim 6, characterized in that: The side of the protrusion facing the input end of the conveying line is an outwardly extending inclined surface.

8. The blood sampling automatic mixing device according to claim 7, characterized in that: Vibrating convex patterns are arranged at intervals on the surface between adjacent protrusions.

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