Intelligent mobile blood sampling system and working method thereof

Abstract

The invention provides an intelligent mobile blood sampling system and a working method thereof. The intelligent mobile blood sampling system comprises a bearing device, a puncturing device and a putting device. During operation, after an arm of a blood donor is placed, the bearing device drives the pulse pressing seat to press the arm through cooperative work of the connecting rod, the movable sleeve, the threaded column and the like, meanwhile, the near-infrared positioning device accurately positions vein coordinates, and the three-axis moving mechanism guides the blood taking needle to accurately puncture and take blood and automatically withdraw. After blood sampling is completed, the hemostasis paste is pushed from the containing box to the second suction cup of the swing arm through the push plate, when the pressing rod drives the first suction cup to press downwards, the swing arm tears off the release paper, the pressing rod presses downwards to press a wound with the hemostasis paste to complete binding, finally, the pulse pressing base resets, the arm can be taken out conveniently, and the blood sampling accuracy and efficiency are remarkably improved as a whole. And through the integrated function of automatic hemostasis paste conveying and wound binding, the manual operation requirement is greatly reduced, the unmanned blood sampling operation efficiency can be improved, the blood donation experience is optimized, and the infection risk is reduced.

Description

Technical Field

[0001] This invention relates to the field of blood collection technology, and in particular to an intelligent mobile blood collection system and its working method. Background Technology

[0002] In the field of medical blood collection, my country's blood supply is currently in a state of "tight balance," facing issues such as uneven distribution of blood resources and a lack of information sharing mechanisms. Blood banks across the country frequently experience critical shortages, and the level of intelligent construction of blood banks nationwide varies considerably. Although existing intelligent automated blood collection equipment can automatically scan veins and locate puncture targets after a blood donor's arm is inserted, in practical applications, the way the equipment fixes the blood donor's arm and the effectiveness of vein compression are insufficient.

[0003] Specifically, existing blood collection equipment does not compress veins when the arm is inserted, resulting in unclear protrusion of blood vessels in the puncture area. This leads to low accuracy in vein positioning and puncture success rate, and a high risk of vascular damage. Especially in unmanned operation scenarios, it is difficult to guarantee a high success rate of puncture on the first attempt and effectively reduce the risk of vascular damage. Summary of the Invention

[0004] To address the shortcomings mentioned above in the background technology, this invention provides an intelligent mobile blood collection system and its working method.

[0005] The present invention adopts the following technical solution: In a first aspect, the present invention discloses an intelligent mobile blood collection system, which includes a connecting frame, and a support device and a puncture device disposed on the connecting frame; The supporting device includes: A support plate, which is fixed to the connecting frame, supports the blood donor's arm; A limiting cylinder is fixed to the connecting frame and is located at the end of the support plate away from where the arm extends. The axis of the limiting cylinder is parallel to the support plate. An annular groove is provided on the inner surface of the limiting cylinder near the end of the support plate. Movable grooves are provided on both sides of the inner wall of the limiting cylinder. The movable grooves are connected to the annular grooves. The movable grooves are also provided with through slotted holes. A movable sleeve is adapted to slide inside the limiting cylinder, and a protruding movable pin is fixed to the inner wall of the movable groove. The movable sleeve is fixed to a connecting rod, and the connecting rod passes through the strip hole to fix a handle. A threaded post, wherein the annular surface of the threaded post is provided with a helical threaded groove, and the threaded post is adapted to pass through the movable sleeve, so that the movable pin is fitted into the threaded groove with clearance fit; A drive shaft is disposed on one side of the support plate and rotates axially fixedly relative to the support plate. One end of the drive shaft is connected to the threaded column. A pressure plate seat is fixed to the drive shaft, and the pressure plate seat is flipped relative to the upper part of the support plate near the arm placement position; A three-axis moving mechanism is disposed above the supporting device; A propulsion cylinder is disposed at the motion output end of the three-axis moving mechanism; A needle holder is installed on the piston rod of the advance cylinder. The needle holder is used to fix the blood collection needle. After the target point coordinates for blood collection on the arm are determined, the three-axis moving mechanism drives the blood collection needle to move to the target point, and the advance cylinder drives the needle holder to move to perform puncture and blood collection.

[0006] In one possible implementation of the first aspect, a second transmission wheel is fixed at one end of the transmission shaft, and a first transmission wheel that is fixed to rotate axially is provided in the connecting frame. The first transmission wheel and the second transmission wheel are connected in a transmission manner. A through transmission hole is provided at the center of the first transmission wheel. The transmission hole is a regular hexagonal through hole. A hexagonal prism is fixed at one end of the threaded column, and the hexagonal prism is adapted to pass through the transmission hole.

[0007] In one possible implementation of the first aspect, the pressure pulse seat is connected to an arc-shaped pad, the arc-shaped pad being located below the pressure pulse seat after it is flipped over to the top of the support plate, and a first spring is provided between the arc-shaped pad and the pressure pulse seat, the elastic force of the first spring pushing the arc-shaped pad away from the pressure pulse seat.

[0008] In one possible implementation of the first aspect, the connecting rod is bent into an L-shape, and the handle is fixed to the end of a section of the connecting rod parallel to the support plate.

[0009] In one possible implementation of the first aspect, a threaded hole is provided on one side of the movable sleeve, and the movable pin spirally enters the movable sleeve from the outside to the inside.

[0010] In one possible implementation of the first aspect, the limiting cylinder is radially split to form two semi-circular tubes, the threaded column and the movable sleeve are both embedded behind one of the semi-circular tubes, and the other semi-circular tube covers the semi-circular tube and is fixed by a mounting screw.

[0011] In one possible implementation of the first aspect, the system further includes a dispensing device, the dispensing device comprising: A fixed base is fixed to the motion output end of the three-axis moving mechanism. The fixed base is provided with a through support hole, which corresponds to the top of the blood collection needle. A receiving box for stacking hemostatic patches, the receiving box being fixed above the fixing base and located on one side of the support hole, the receiving box having a hinged baffle facing one end of the receiving hole, the upper half of the baffle being located on the surface of the receiving box. A push plate is located in the fixed seat and slides relative to the support hole and the receiving box. The upper surface of the push plate is also provided with a recessed placement groove. The depth of the placement groove is the same as the thickness of a hemostatic patch in the receiving box. The push plate is provided with a recessed relief groove at the end of the placement groove opposite to the support hole. The relief groove corresponds to the baffle, and the lower end of the baffle extends into the relief groove. A pressure rod is provided above the support hole, and the pressure rod passes through the support hole and moves up and down relative to the fixed base. A first suction cup is provided below the pressure rod. A swing arm is disposed under the fixed base and swings relative to the fixed base; a second suction cup is provided at the end of the swing arm. When the push plate moves to the position slot corresponding to the accommodating box, the hemostatic patch inside the accommodating box falls onto the position slot; When the push plate moves toward the support hole, the hemostatic patch in the placement groove pushes the baffle to swing upward, so that the hemostatic patch moves with the push plate to above the support hole; When the push plate is reset to the receiving box, the baffle is blocked on the surface of the receiving box. The hemostatic patch in the placement slot cannot be pushed and the baffle is blocked by the baffle. When the push plate is reset to below the receiving box, the hemostatic patch originally located in the placement slot falls from the support hole to the second suction cup. The downward pressure of the lever causes the first suction cup to press against the hemostatic patch located on the second suction cup. The swing arm swings to tear open the release paper on the bottom of the hemostatic patch. The lever continues to press the hemostatic patch against the window at the target point, forming a wound bandaging action.

[0012] In a possible implementation of the first aspect, the dispensing device further includes a first slider, a second slider, and a transmission component. A vertical plate is fixed to one side of the fixed base. Both the first slider and the second slider slide vertically relative to the fixed base. The upper end of the pressure rod is fixed to the first slider, and a passive part is fixed to the side of the first slider. A lifting part is provided on one side of the second slider, extending below the passive part. A rotating sleeve is connected to the other side of the second slider. A rotating sleeve is also connected to one side of the push plate. The transmission component is restricted to rotating on the fixed base. Guide rods are fixed in two perpendicular directions of the transmission component, and the two guide rods slide through the two rotating sleeves respectively.

[0013] In one possible implementation of the first aspect, a drive cylinder is also fixed to the side of the fixed base, and the piston rod of the drive cylinder is connected and fixed to the push plate.

[0014] Secondly, the present invention discloses a method for operating the above-mentioned system, the method being as follows: The blood donor places his arm on the support plate, grasps and pulls the handle, causing the movable sleeve to slide in the limiting sleeve toward the support plate, so that the movable pin pushes the threaded column to move axially and then rotate along the threaded groove trajectory, driving the transmission shaft to rotate, so that the transmission shaft drives the pressure seat to flip downward and press against the blood donor's arm. The near-infrared vein coordinate positioning device acquires images of arm veins, and after image enhancement and segmentation processing, the vein network contour is extracted to determine the coordinates of the blood collection target point. The three-axis moving mechanism drives the needle holder to move to the target position, and the push cylinder performs the needle insertion action to make the needle tip of the blood collection needle puncture the vein for blood collection. Once the blood donation volume is reached, the blood collection automatically stops, and the needle holder retracts the blood collection needle. The blood donor will push their hand inward, causing the movable sleeve to move and rotate the threaded column in the opposite direction, which in turn drives the transmission shaft to rotate, causing the pressure plate seat to flip upward.

[0015] As can be seen from the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: After the blood donor's arm is placed on the support plate, the moving sleeve is driven to slide directionally within the limiting cylinder by holding the handle and pulling horizontally. The moving pin on the inner side of the moving sleeve moves along the spiral thread groove trajectory on the surface of the threaded column, forcing the threaded column to complete axial displacement first and then triggering rotation. The threaded column transmits torque through the hexagonal cooperation between the hexagonal prism at the end and the hexagonal drive hole of the first drive wheel, driving the drive shaft to drive the pressure seat to flip downward and press the arm. This mechanical linkage design allows the blood donor to stabilize and fix the arm posture and compress the vein in a single operation, ensuring that the vein in the puncture area is clearly protruding. This is beneficial to improving the accuracy of vein positioning and the success rate of puncture, achieving a significant increase in the success rate of puncture in unmanned operation scenarios, while also reducing the risk of vascular damage. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the system of the present invention.

[0017] Figure 2 This is a schematic diagram of an embodiment of a medical workbench for setting up the system of the present invention.

[0018] Figure 3 for Figure 2 A lateral cross-sectional view.

[0019] Figure 4 This is a three-dimensional structural diagram of the support device.

[0020] Figure 5 For the supporting device relative Figure 4 A schematic diagram of the three-dimensional structure from another perspective.

[0021] Figure 6 for Figure 5 An enlarged schematic diagram of point A in the middle.

[0022] Figure 7 This is a three-dimensional structural diagram of the lower half of the limiting cylinder.

[0023] Figure 8 A three-dimensional structural diagram of the movable sleeve connecting handle.

[0024] Figure 9 A three-dimensional structural diagram showing the movable sleeve and threaded post located in the lower half of the limiting cylinder.

[0025] Figure 10 This is a three-dimensional structural diagram of a threaded column.

[0026] Figure 11 A schematic diagram of a structure with an arc-shaped pad under the pressure pulse seat.

[0027] Figure 12 This is a three-dimensional structural diagram of the dispensing device.

[0028] Figure 13 for Figure 12 A magnified diagram of point B in the middle.

[0029] Figure 14 A three-dimensional structural diagram of the dispensing device mounted on the Z-axis slide.

[0030] Figure 15 for Figure 14 A magnified diagram of point C.

[0031] Figure 16 This is a front view of the dispensing device.

[0032] Figure 17 This is a schematic diagram of the three-dimensional structure of the push plate.

[0033] Figure 18 A schematic diagram showing the first slider, the second slider, and the transmission component mounted on the fixed base.

[0034] Figure 19 This is a schematic diagram showing the swing arm connected to the mounting bracket and swinging to a horizontal position. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0036] In the following description, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0037] Furthermore, in this application, directional terms such as "upper" and "lower" are defined relative to the indicated placement of the components in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the placement of the components in the accompanying drawings.

[0038] This invention provides an intelligent mobile blood collection system and its working method, as shown in the appendix. Figure 3 As shown, the system includes a fixed connecting frame 11, and a support device 2 and a puncture device 3 disposed on the connecting frame 11. See also the attached diagram. Figure 2 and 3 The system of the present invention is integrated into a medical workbench, which is equipped with a housing 1 and a connecting frame 11 is fixed to the housing 1.

[0039] As attached Figures 4 to 10 The supporting device 2 includes a supporting plate 21, a limiting cylinder 22, a movable sleeve 23, a threaded column 24, a drive shaft 25, and a pulse pressure seat 26. The supporting plate 21 and the limiting cylinder 22 are both fixed to the connecting frame 11. The outer shell 1 of the medical workbench has an inlet 101 on its front side. The blood donor's arm passes through this inlet 101 and rests on the supporting plate 21, allowing the supporting plate 21 to support the donor's arm. The limiting cylinder 22 is located at the end of the supporting plate 21 away from where the arm enters. The structure connecting the limiting cylinder 22 to the connecting frame 11 can be such that a clamp 27 is fixed to the connecting frame 11, and the limiting cylinder 22 is fixed inside the clamp 27, with the axis of the limiting cylinder 22 parallel to the supporting plate 21. An annular groove 221 is provided on the annular surface of the limiting cylinder 22 near one end of the supporting plate 21. Movable grooves 222 are provided on both sides of the inner wall of the limiting cylinder 22, communicating with the annular groove 221. The movable groove 222 also has a through-hole 223. Further, the limiting cylinder 22 is radially divided into two semi-circular tubes. The threaded column 24 and the movable sleeve 23 are both embedded in one of the semi-circular tubes, and the other semi-circular tube covers the first semi-circular tube and is fixed by a through screw. This split structure of the limiting cylinder 22 facilitates the machining of its internal annular groove 221 and movable groove 222, and also facilitates the insertion of the movable sleeve 23 and threaded column 24 into its interior.

[0040] Continue to refer to the appendix Figure 9 The movable sleeve 23 is adapted to slide within the limiting cylinder 22, and the inner wall of the movable groove 222 is fixed with a protruding movable pin 231. See also the attached... Figure 10 The threaded post 24 has a helical threaded groove 241 on its annular surface, and the threaded post 24 is adapted to pass through the movable sleeve 23, so that the movable pin 231 is fitted into the threaded groove 241 with a clearance fit. Alternatively, the movable pin 231 can be connected by having a threaded hole on one side of the movable sleeve 23 and an external thread in the middle of the movable pin 231, which is threaded to fit the threaded hole of the movable sleeve 23. After the threaded post 24 passes through the movable sleeve 23, the threaded post 24 is screwed from the outside to the inside of the movable sleeve 23, so that the movable groove 222 is embedded in the threaded groove 241, forming a structure that protrudes into the movable sleeve 23.

[0041] Continue to refer to the appendix Figure 9 A limiting part 242 is also provided on the side of one end of the threaded column 24. The width of the limiting part 242 is the same as the width of the annular groove 221, and the thickness of the limiting part 242 is the same as the thickness of the moving groove 222. After the moving sleeve 23 and the limiting cylinder 22 are embedded in the limiting cylinder 22, the limiting part 242 is embedded in the annular groove 221 or the moving groove 222, thereby restricting the movement of the threaded column 24. Specifically, when the limiting part 242 is located in the annular groove 221, the threaded column 24 can only rotate relative to the limiting cylinder 22; when the limiting part 242 is located in the moving groove 222, the threaded column 24 can only slide relative to the annular groove 221 along its axial direction. This structure ensures that the movement mode switching of the threaded column 24 is reliable and controllable.

[0042] Continue to refer to the appendix Figure 8 The movable sleeve 23 also fixes the connecting rod 232, which passes through the strip hole 223 and fixes the handle 233. The connecting rod 232 is bent into an L-shape, and the handle 233 is fixed to the end of the section of the connecting rod 232 that is parallel to the support plate 21, so that the handle 233 is located at the end of the support plate 21. When the blood donor's arm is inserted into the device and placed on the support plate 21, his hand can naturally grasp the handle 233, so that by pulling the handle 233, the movable sleeve 23 can be moved towards the support plate 21 within the limiting sleeve 22. At this time, the movable pin 231 pushes the threaded column 24 along the trajectory of the threaded groove 241 to generate a linkage movement. Specifically, the operation is as follows: when the limiting part 242 is located at the end of the moving groove 222 away from the support plate 21, the threaded column 24 is constrained to only move axially and cannot rotate; the blood donor holds the handle 233 and pulls the moving sleeve 23 towards the support plate 21, the moving sleeve 23 abuts against the limiting part 242 of the threaded column 24 and pushes it to move towards the annular groove 221 until the limiting part 242 abuts against the end of the annular groove 221, at which point the axial movement of the threaded column 24 is locked; the moving pin 231 continues to push the threaded groove 241, thereby driving the limiting part 242 to rotate within the annular groove 221. This linkage design allows the blood donor to achieve the axial linear movement and subsequent rotation of the threaded column 24 with only a single pull of the handle 233.

[0043] Continue to refer to the appendix Figures 4 to 6 The drive shaft 25 is located on one side of the support plate 21. A bearing seat can be fixed to the side of the connecting frame 11, and the drive shaft 25 is mounted on this bearing seat to restrict the drive shaft 25 to axially fixed rotation relative to the support plate 21. One end of the drive shaft 25 is connected to the threaded post 24. The transmission structure can be as shown in the attached figure, where a first drive wheel 251, also mounted on the connecting frame 11 via a bearing seat, is axially fixed and rotates. A second drive wheel 252 is fixed to one end of the drive shaft 25. The first and second drive wheels 251 are connected by a drive belt 253 to achieve the transmission connection. Furthermore, a through-hole is provided at the center of the first drive wheel 251. The through-hole is a regular hexagonal hole, and a hexagonal prism 243 is fixed to one end of the threaded post 24, which fits through the through-hole. When the threaded column 24 rotates, it drives the first transmission wheel 251 to rotate through the hexagonal prism 243, which in turn drives the transmission shaft 25 to rotate through the transmission belt 253 and the second transmission wheel 252. During the movement of the threaded column 24, the hexagonal prism 243 can slide freely in the transmission hole, ensuring that the axial linear movement of the threaded column 24 is not interfered with by the transmission connection. This achieves power transmission while maintaining the degree of freedom of motion, improving the flexibility and reliability of system adjustment.

[0044] The other end of the drive shaft 25 is located on one side of the support plate 21. The pressure vessel 26 is fixed to the end of the drive shaft 25 near the support plate 21, so that when the drive shaft 25 rotates, it causes the pressure vessel 26 to flip relative to the upper part of the support plate 21 near the arm placement position. When the blood donor moves the handle 233 outward, causing the threaded column 24 to rotate, the rotational force is transmitted to the pressure vessel 26 through the drive shaft 25, driving the pressure vessel 26 to flip downward and press against the blood donor's arm, realizing the automatic pressure function. This ensures that the arm posture is stable and the vein is clearly visible during blood collection, significantly improving the accuracy of vein positioning and the success rate of puncture, while reducing the need for manual intervention. When the blood donor moves the handle 233 inward, causing the threaded column 24 to rotate, the rotational force is transmitted to the pressure vessel 26 through the drive shaft 25, driving the pressure vessel 26 to flip upward and move away from the blood donor's arm, thus relieving pressure on the arm.

[0045] As attached Figure 11As shown, the pressure seat 26 is connected to an arc-shaped pad 261, which is preferably a flexible air cushion. The arc-shaped pad 261 is located below the pressure seat 26 when it is flipped over the support plate 21. This structure provides an adaptive pressure regulation mechanism through internal gas buffering characteristics, effectively preventing excessive pressure on blood vessels and avoiding blood flow obstruction or tissue damage. At the same time, the air cushion can automatically deform with changes in arm circumference to adapt to the arm contours of blood donors of different body types, ensuring uniform and stable pressure distribution and significantly improving comfort during blood collection. Furthermore, the arc-shaped pad 261 is fixed to an arc-shaped plate. A first spring 262 is connected between the end of the arc-shaped plate facing away from the arc-shaped pad 261 and the pressure seat 26. The elastic force of the first spring 262 pushes the arc-shaped pad 261 away from the pressure seat 26. Furthermore, two guide posts 263 are fixed to one side of the arc-shaped pad 261, and two guide holes are fixed to the vein pressure seat 26. The two guide posts 263 are respectively fitted with nuts threaded through the two guide holes, and the second spring 464 can be sleeved on the outside of the guide posts 263. When the vein pressure seat 26 flips down and presses against the blood donor's arm, the arc-shaped pad 261 directly contacts the surface of the arm. This structure provides an adaptive buffering mechanism through the first spring 262, which effectively prevents excessive compression of blood vessels and can automatically adapt to arm circumferences of different sizes, providing a uniform and stable pressure distribution for blood donors of different body types, significantly improving comfort and the reliability of vein positioning.

[0046] As attached Figure 1 As shown in Figure 16, the puncture device 3 includes a three-axis moving mechanism 31, a needle holder 32, and an advance cylinder 33. The three-axis moving mechanism 31 is positioned above the support device 2. The advance cylinder 33 is connected to the three-axis moving mechanism and can be an electric push rod. The piston rod of the advance cylinder 33 is connected to the needle holder 32, which is used to fix the blood collection needle 321. In this structure, the three-axis moving mechanism 31 positions the blood collection needle 321, and the advance cylinder 33 moves the blood collection needle 321 to perform puncture and needle insertion.

[0047] Specifically, the three-axis moving mechanism 31 includes an X-axis slide rail 311, a Y-axis slide rail 312, and a Z-axis slide rail 313, as well as an X-axis slide seat adapted to slide on the X-axis slide rail 311, a Y-axis slide seat adapted to slide on the Y-axis slide rail 312, and a Z-axis slide seat adapted to slide on the Z-axis slide rail 313. In the specific structure, the Y-axis slide rails 312 are symmetrically fixedly installed on both sides of the connecting frame 11. The Y-axis slide seats on both sides of the Y-axis slide rails 312 are rigidly connected to both ends of the X-axis slide rail 311, so that the X-axis slide rail 311 can perform linear translational movement along the Y-axis slide rail 312. The Z-axis slide rail 313 is vertically fixed to the surface of the X-axis slide seat, so that the Z-axis slide rail 313 can translate synchronously with the X-axis slide seat along the X-axis slide rail 311. The Z-axis slide seat serves as the final motion output end of the three-axis moving mechanism 31, fixing and carrying the needle tube holder 32 to achieve omnidirectional precise positioning in three-dimensional space. This cantilevered composite guide rail layout ensures structural rigidity while achieving motion decoupling. Through three-degree-of-freedom collaborative positioning, it ensures that the blood collection needle 321 can reach any target coordinate point on the arm surface.

[0048] In addition, the system of the present invention also includes a near-infrared vein coordinate positioning device, which can be fixed above the connecting frame 11. The near-infrared vein coordinate positioning device acquires arm vein images through an adjustable near-infrared light source and a filtered camera. After image enhancement and segmentation processing to extract the vein network contour, the boundary point distance maximization algorithm is used to determine the planar coordinates of the blood collection target point to obtain the coordinate position of the blood collection target point. The three-axis moving mechanism 31 drives the blood collection needle 321 to move to the target point position in coordination with the X / Y / Z axes according to the preset coordinate position of the blood collection target point. Then, the propulsion cylinder 33 performs the needle insertion action, so that the needle tip moves along the planned path to the target skin contact point to complete the puncture positioning. The entire process realizes closed-loop control of spatial position through real-time conversion between the image coordinate system and the mechanical coordinate system, ensuring that the spatial trajectory of the blood collection needle 321 strictly matches the biometric recognition result.

[0049] Please refer to the appendix. Figures 12 to 18 The dispensing device 4 includes a fixed base 41, a receiving box 42, a push plate 44, and a pressure rod 45. The fixed base 41 is fixed to the motion output end of the three-axis moving mechanism 31, and has a through support hole 411 corresponding to the area above the blood collection needle 321. The receiving box 42 is used to hold stacked hemostatic patches 5. The receiving box 42 is fixed above the fixed base 41 and is located on one side of the support hole 411. A hinged baffle 43 is attached to one end of the receiving box 42 facing the support hole 411. The upper half of the baffle 43 is located on the surface of the receiving box 42, preventing the baffle 43 from flipping inwards.

[0050] The push plate 44 slides within the fixed base 41 relative to the support hole 411 and the receiving box 42. Specifically, slide rails are fixed on both sides of the fixed base 41, and both slide rails are adapted to connect to the slider. The push plate 44 is fixed to the slider. A recessed placement groove 441 is also provided on the upper surface of the push plate 44. The depth of the placement groove 441 is consistent with the thickness of a bandage 5 inside the receiving box 42. A recessed clearance groove 442 is provided on the end of the placement groove 441 facing away from the support hole 411. The clearance groove 442 corresponds to the baffle 43, and the lower end of the baffle 43 extends into the clearance groove 442. In addition, a drive cylinder is fixed to the side of the fixed base 41. The drive cylinder can be an electric push rod, and the piston rod of the drive cylinder is connected and fixed to the push plate 44 to achieve automatic movement of the push plate 44 relative to the receiving box 42 and the support hole 411. When the push plate 44 moves to the position slot 441 corresponding to the lower part of the container 42, the hemostatic patch 5 in the container 42 falls onto the position slot 441. When the push plate 44 moves towards the support hole 411, the hemostatic patch 5 in the position slot 441 pushes the baffle 43 to swing upward, so that the hemostatic patch 5 moves with the push plate 44 to the upper part of the support hole 411. When the push plate 44 resets into the container 42, the baffle 43 is blocked on the surface of the container 42 and cannot be flipped inward. The hemostatic patch 5 in the position slot 441 cannot push the baffle 43 to swing inward into the container 42 and is stopped by the baffle 43. At this time, the push plate 44 continues to reset, so that the position slot 441 is disengaged from the hemostatic patch 5, and the hemostatic patch 5 falls through the support hole 411.

[0051] Continue to refer to the appendix Figure 12The pressure rod 45 is positioned above the support hole 411 and passes through the support hole 411 to rise and fall relative to the fixed seat 41. The lower part of the pressure rod 45 is connected to the first suction cup. The lifting drive mechanism of the pressure rod 45 adopts a mechanical linkage structure in which the first slider 461, the second slider 462, and the transmission component 463 work together. Specifically, a vertical plate is fixed on one side of the fixed seat 41, the first slider 461 and the second slider 462 slide vertically relative to the fixed seat 41, the upper end of the pressure rod 45 is fixed to the first slider 461, and the passive part 4611 is fixed on the side of the first slider 461 as the force transmission part. A lifting part 4621 is provided on one side of the second slider 462, extending below the passive part 4611. The other side of the second slider 462 is connected to a rotating sleeve 465. One side of the push plate 44 is also connected to the rotating sleeve 465, forming a linkage node. Guide rods 4631 are fixed in two perpendicular directions of the transmission component 463, forming a motion transmission frame. A rotating shaft 4632 is fixed at the intersection of the two guide rods 4631, serving as the rotation center of the transmission component 463. A bearing seat is also fixed on the fixed base 41, and the rotating shaft 4632 is assembled to the bearing seat of the fixed base 41 to restrict the transmission component 463 to rotate on the fixed base 41. Furthermore, the two guide rods 4631 slide through the two rotating sleeves 465 respectively. When the push plate 44 moves horizontally, the horizontal thrust is converted into the vertical lifting motion of the second slider 462 through the linkage of the transmission component 463 and the rotating sleeve 465. This, in turn, pushes the first slider 461 to drive the pressure rod 45 to achieve precise and controllable lifting and lowering actions. This structure achieves automatic conversion between the horizontal movement of the push plate 44 and the vertical movement of the pressure rod 45 through mechanical linkage, ensuring the timing coordination of the application and pressing actions of the hemostatic patch 5.

[0052] As attached Figure 18 and 19 As shown, a mounting bracket 48 is provided at the bottom of the fixed base 41. A swing arm 47 is pivotally connected to the middle of the mounting bracket 48 and can rotate relative to it to rotate relative to the fixed base 41. A second suction cup 471 is provided at the end of the swing arm 47. The mounting bracket 48 is also pivotally connected to a swing cylinder 472, which can be a pneumatic cylinder or an electric push rod. The piston rod of the swing cylinder 472 is pivotally connected to the swing arm 47. This structure allows the swing arm 47 to swing horizontally relative to the mounting bracket 48 when the piston rod of the swing cylinder 472 extends, and the second suction cup 471 to correspond to the support hole 411 to support the hemostatic patch 5 falling from the support hole 411 and to absorb the release paper on the bottom surface of the hemostatic patch 5. When the piston rod of the swing cylinder 472 retracts, it pushes the swing arm 47 to swing vertically relative to the mounting bracket 48, and the second suction cup 471 to move away from the support hole 411 to avoid the descending space of the pressure rod 45 and the first suction cup 451.

[0053] Continue to refer to the appendix Figure 18When the push plate 44 moves from below the housing 42 toward the support hole 411, the rotating sleeve 465 connected to the push plate 44 pushes the guide rod 4631 to drive the transmission component 463 to rotate. Then, through another guide rod 4631, the second slider 462 is driven to move upward. The lifting part 4621 of the second slider 462 pushes the passive part 4611 of the first slider 461 upward, causing the first slider 461 and the pressure rod 45 to rise as a whole. At this time, the push plate 44 delivers the single-layer hemostatic patch 5 to the position directly above the support hole 411. The rising action of the pressure rod 45 avoids the hemostatic patch 5. At the same time, the swing arm 47 swings upward to the horizontal, so that the second suction cup 471 corresponds to the support hole 411. When the push plate 44 moves back from the support hole 411 towards the receiving box 42, the bandage 5 is blocked by the baffle 43 and cannot return to its original position with the push plate 44. This causes the bandage 5 to fall naturally from the support hole 411 onto the first suction cup, where it is attracted by the first suction cup. At the same time, the rotating sleeve 465 connected to the push plate 44 pushes the guide rod 4631 to make the transmission component 463 rotate in the opposite direction, which in turn drives another guide rod 4631 to pull the second slider 462 downward. This causes the passive part 4611 of the first slider 461 to lose support and move downward. The pressure rod 45 descends synchronously to the first suction cup 451 and presses against the bandage 5 located on the second suction cup 471. The first suction cup 451 attracts the bandage 5. Then, the swing arm 47 flips and swings downward, peeling the release paper of the bandage 5 downward, exposing the adhesive surface and absorbent layer of the bandage 5 downward. At the same time, the pressure rod 45 descends, causing the hemostatic patch 5 adsorbed by the first suction cup 451 to press downwards towards the wound. In the unmanned blood collection scenario inside the outer shell 1, the automatic flipping of the swing arm 47 combined with the automatic pressing of the pressure rod 45 can replace the traditional hemostatic patch application action of medical staff.

[0054] Furthermore, a second spring 464 is connected between the top of the upright plate and the first slider 461. The elastic restoring force generated by the second spring 464 drives the first slider 461 to move downward in a predetermined direction, thereby reliably pushing the pressure rod 45 downward, thus ensuring that the pressure rod 45 can stably apply continuous downward pressure during operation, and improving the reliability of the pressure rod 45 pressing the hemostatic patch 5.

[0055] Based on the above structure, the specific working process of the system of the present invention is as follows: The blood donor places their arm into the support plate 21 of the medical workbench, grasps and pulls the handle 233, and drives the movable sleeve 23 to slide towards the support plate 21 within the limiting cylinder 22 via the connecting rod 232. This causes the movable pin 231 of the movable sleeve 23 to push the threaded column 24 to move axially first and then rotate along the threaded groove 241 of the threaded column 24. The threaded column 24 drives the first transmission wheel 251 to rotate through the transmission hole of the hexagonal prism 243 at one end. The first transmission wheel 251 drives the second transmission wheel 252 to rotate through the transmission belt 253, which in turn drives the transmission shaft 25 to rotate. This causes the transmission shaft 25 to cause the pressure seat 26 to flip downward and press against the blood donor's arm. The near-infrared vein coordinate positioning device acquires images of arm veins through an adjustable near-infrared light source and a filtered camera. After image enhancement and segmentation processing, the vein network contour is extracted and the coordinates of the blood collection target point are determined. The three-axis moving mechanism 31, based on the coordinate data, is driven by the X-axis slide rail 311, Y-axis slide rail 312 and Z-axis slide rail 313 to precisely position the needle fixation device 32 to the target point. The propulsion cylinder 33 performs the needle insertion action to make the needle tip puncture the vein along the planned path for blood collection. Once the blood donation volume is reached, blood collection automatically stops and the needle fixation device 32 retracts the blood collection needle 321. Under the action of the drive cylinder, the push plate 44 moves horizontally from below the accommodating box 42 to the corresponding position of the placement slot 441 to receive the single-layer hemostatic patch 5; the push plate 44 continues to move towards the support hole 411, the hemostatic patch 5 pushes the baffle 43 to swing upward so that the hemostatic patch 5 is delivered to the top of the support hole 411. When the push plate 44 returns to the accommodating box 42, the baffle 43 blocks the hemostatic patch 5, so that the hemostatic patch 5 cannot fall from the support hole 411 onto the second suction cup 471 as the push plate 44 moves. The second suction cup 471 adsorbs the release paper on the bottom surface of the hemostatic patch. The reset action of the push plate 44 pushes the guide rod 4631 through the rotating sleeve 465, which drives the transmission component 463 to rotate, thereby driving the second slider 462 to move downward, causing the first slider 461 to drive the pressure rod 45 to descend vertically, and the pressure rod 45 descends to the first suction cup 451 pressing the hemostatic patch 5 on the second suction cup 471. The pressure bar 45 continues to descend, while the swing arm 47 swings downwards until it is below the support hole 411, tearing open the release paper of the bandage so that the absorbent layer of the bandage adsorbed by the first suction cup 451 is exposed downwards. The pressure bar 45 descends to press the bandage onto the wound, completing the bandaging of the wound. The blood donor pushes the handle 233 inward, causing the movable sleeve 23 to move and drive the threaded column 24 to rotate in the opposite direction, which in turn drives the transmission shaft 25 to rotate, causing the pressure seat 26 to flip upward, and the blood donor can then extend their arm out of the outer shell 1.

[0056] Preferably, a through hole can be provided on the support plate 21 corresponding to the position of the second suction cup 471 after the swing arm 47 swings to the vertical position, and a collection box (not shown in the figure) can be provided under the fixing frame 11. When the swing arm 47 swings to tear the peeling paper of the hemostatic patch 5, the second suction cup 471 stops adsorbing, so that the peeling paper falls from the through hole of the support plate 21 into the collection box for unified collection.

[0057] The above-described method achieves fully automated operation of the blood donation process. After the donor's arm is placed, the connecting rod 232, the moving sleeve 23, and the threaded column 24 work together to drive the pressure seat 26 to press the arm. At the same time, the near-infrared positioning device accurately locates the vein coordinates, and the three-axis moving mechanism guides the blood collection needle 321 to accurately puncture and collect blood and automatically retracts. After blood collection, the push plate 44 pushes the hemostatic patch from the container 42 onto the second suction cup 471 of the swing arm. When the pressure rod 45 drives the first suction cup 451 to press down, the swing arm 47 tears off the release paper, and the pressure rod 45 presses down to cover the wound with the hemostatic patch 5 to complete the bandaging. Finally, the pressure seat 26 resets to facilitate arm removal. Overall, it significantly improves the accuracy and efficiency of blood collection. Furthermore, the integrated function of automatic delivery of the hemostatic patch 5 and wound bandaging greatly reduces the need for manual operation, which is conducive to improving the efficiency of unmanned blood collection operations, optimizing the blood donation experience, and reducing the risk of infection.

[0058] The above are merely specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept shall be considered as infringing upon the protection scope of the present invention.

Claims

1. An intelligent mobile blood collection system, characterized in that, The system includes a connecting frame, as well as a support device and a puncture device disposed on the connecting frame; The supporting device includes: A support plate, which is fixed to the connecting frame, supports the blood donor's arm; A limiting cylinder is fixed to the connecting frame and is located at the end of the support plate away from where the arm extends. The axis of the limiting cylinder is parallel to the support plate. An annular groove is provided on the inner surface of the limiting cylinder near the end of the support plate. Movable grooves are provided on both sides of the inner wall of the limiting cylinder. The movable grooves are connected to the annular grooves. The movable grooves are also provided with through slotted holes. A movable sleeve is adapted to slide inside the limiting cylinder, and a protruding movable pin is fixed to the inner wall of the movable groove. The movable sleeve is fixed to a connecting rod, and the connecting rod passes through the strip hole to fix a handle. A threaded post, wherein the annular surface of the threaded post is provided with a helical threaded groove, and the threaded post is adapted to pass through the movable sleeve, so that the movable pin is fitted into the threaded groove with clearance fit; A drive shaft is disposed on one side of the support plate and rotates axially fixedly relative to the support plate. One end of the drive shaft is connected to the threaded column. A pressure plate seat is fixed to the drive shaft, and the pressure plate seat is flipped relative to the upper part of the support plate near the arm placement position; The puncture device includes: A three-axis moving mechanism is disposed above the supporting device; A propulsion cylinder is disposed at the motion output end of the three-axis moving mechanism; A needle holder is installed on the piston rod of the advance cylinder. The needle holder is used to fix the blood collection needle. After the target point coordinates for blood collection on the arm are determined, the three-axis moving mechanism drives the blood collection needle to move to the target point, and the advance cylinder drives the needle holder to move to perform puncture and blood collection.

2. The system as described in claim 1, characterized in that, One end of the drive shaft is fixed with a second drive wheel, and a first drive wheel that is fixed to rotate axially is provided in the connecting frame. The first drive wheel and the second drive wheel are connected in a driving connection. The shaft of the first drive wheel is provided with a through drive hole, which is a regular hexagonal through hole. One end of the threaded column is fixed with a hexagonal prism, which is adapted to pass through the drive hole.

3. The system as described in claim 1, characterized in that, The pressure pulse seat is connected to an arc-shaped pad, which is located below the pressure pulse seat after it is flipped over to the top of the support plate. A first spring is provided between the arc-shaped pad and the pressure pulse seat, and the elastic force of the first spring pushes the arc-shaped pad away from the pressure pulse seat.

4. The system as described in claim 1, characterized in that, The connecting rod is bent into an L-shape, and the handle is fixed to the end of the connecting rod that is parallel to the support plate.

5. The system as described in claim 1, characterized in that, A threaded hole is provided on one side of the movable sleeve, and the movable pin spirally enters the movable sleeve from the outside to the inside.

6. The system as described in claim 1, characterized in that, The limiting cylinder is radially cut to form two semi-circular tubes. The threaded column and the movable sleeve are both embedded behind one of the semi-circular tubes, and the other semi-circular tube covers the semi-circular tube and is fixed by a mounting screw.

7. The system as described in claim 1, characterized in that, The system also includes a dispensing device, which comprises: A fixed base is fixed to the motion output end of the three-axis moving mechanism. The fixed base is provided with a through support hole, which corresponds to the top of the blood collection needle. A receiving box for stacking hemostatic patches, the receiving box being fixed above the fixing base and located on one side of the support hole, the receiving box having a hinged baffle facing one end of the receiving hole, the upper half of the baffle being located on the surface of the receiving box. A push plate is located in the fixed seat and slides relative to the support hole and the receiving box. The upper surface of the push plate is also provided with a recessed placement groove. The depth of the placement groove is the same as the thickness of a hemostatic patch in the receiving box. The push plate is provided with a recessed relief groove at the end of the placement groove opposite to the support hole. The relief groove corresponds to the baffle, and the lower end of the baffle extends into the relief groove. A pressure rod is provided above the support hole, and the pressure rod passes through the support hole and moves up and down relative to the fixed base. A first suction cup is provided below the pressure rod. A swing arm is disposed under the fixed base and swings relative to the fixed base; a second suction cup is provided at the end of the swing arm. When the push plate moves to the position slot corresponding to the accommodating box, the hemostatic patch inside the accommodating box falls onto the position slot; When the push plate moves toward the support hole, the hemostatic patch in the placement groove pushes the baffle to swing upward, so that the hemostatic patch moves with the push plate to above the support hole; When the push plate is reset to the receiving box, the baffle is blocked on the surface of the receiving box. The hemostatic patch in the placement slot cannot be pushed and the baffle is blocked by the baffle. When the push plate is reset to below the receiving box, the hemostatic patch originally located in the placement slot falls from the support hole to the second suction cup. The downward pressure of the lever causes the first suction cup to press against the hemostatic patch located on the second suction cup. The swing arm swings to tear open the release paper on the bottom of the hemostatic patch. The lever continues to press the hemostatic patch against the window at the target point, forming a wound bandaging action.

8. The system as described in claim 7, characterized in that, The dispensing device further includes a first slider, a second slider, and a transmission component. A vertical plate is fixed to one side of the fixed base. Both the first slider and the second slider slide vertically relative to the fixed base. The upper end of the pressure rod is fixed to the first slider, and a passive part is fixed to the side of the first slider. A lifting part is provided on one side of the second slider, and the lifting part extends below the passive part. A rotating sleeve is connected to the other side of the second slider. A rotating sleeve is also connected to one side of the push plate. The transmission component is restricted to rotating on the fixed base. Guide rods are fixed in two vertical directions of the transmission component, and the two guide rods slide through the two rotating sleeves respectively.

9. The system as described in claim 7, characterized in that, The side of the fixed base also fixes the drive cylinder, and the piston rod of the drive cylinder is connected and fixed to the push plate.

10. The method of operating the system as described in claim 1, characterized in that, The method is as follows: The blood donor places his arm on the support plate, grasps and pulls the handle, causing the movable sleeve to slide in the limiting sleeve toward the support plate, so that the movable pin pushes the threaded column to move axially and then rotate along the threaded groove trajectory, driving the transmission shaft to rotate, so that the transmission shaft drives the pressure seat to flip downward and press against the blood donor's arm. The near-infrared vein coordinate positioning device acquires images of arm veins, and after image enhancement and segmentation processing, the vein network contour is extracted to determine the coordinates of the blood collection target point. The three-axis moving mechanism drives the needle holder to move to the target position, and the push cylinder performs the needle insertion action to make the needle tip of the blood collection needle puncture the vein for blood collection. Once the blood donation volume is reached, the blood collection automatically stops, and the needle holder retracts the blood collection needle. The blood donor will push their hand inward, causing the movable sleeve to move and rotate the threaded column in the opposite direction, which in turn drives the transmission shaft to rotate, causing the pressure plate seat to flip upward.

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