Intelligent full-automatic adjustable 4D printing distal radius splint

Abstract

The invention provides an intelligent full-automatic adjustable 4D (four-dimensional) printing distal radius splint, which belongs to the technical field of medical instruments and comprises a first splint, a second splint, a third splint and a fourth splint which are sequentially arranged in a ring shape. Miniature tension sensors are arranged between the two first bandages on the first small clamping plate and the fourth small clamping plate and between the two first bandages on the second small clamping plate and the third small clamping plate, the winding piece is connected with the other ends of the second bandages, and the sides, close to each other, of the third small clamping plate and the fourth small clamping plate are fixedly connected with a pair of third bandages. The two third bandages, right opposite to each other, on the third small clamping plate and the fourth small clamping plate are connected through a connecting piece. The problems that after an existing 4D printing distal radius splint is used for fixing a fracture part for a period of time, the splint is loosened, it cannot be guaranteed that the splint is always clamped on an affected part with proper force, a patient needs to go to a hospital for adjustment, time and labor are consumed, and use is very inconvenient are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to an intelligent, fully automatic, adjustable 4D printed distal radius splint. Background Art

[0002] Distal radius fracture is a common wrist fracture. In conservative treatment of traditional Chinese medicine, manual reduction of the fracture is used, and then a distal radius splint is used for fixation. The splint consists of 4 separate splints, which are used with a binding strip to fix the wrist joint in the palmar flexion and ulnar deviation position. After 15 days of fixation, the splint needs to be adjusted to the neutral position of the palm.

[0003] With the development of science and technology, 4D printing technology has gradually appeared in front of people. 4D printing technology refers to the process of embedding the deformation design of materials and structures into materials through pre-programming on the basis of 3D printing, so that the printed objects can automatically change shape or structure under external stimuli (such as temperature, humidity, light, chemicals, etc.). The distal radial splint can be printed out through 4D printing technology, which obtains medical imaging data of the distal radial fracture site; imports the imaging data into the three-dimensional reconstruction system to obtain a preliminary three-dimensional model; uses the finite element method to perform biomechanical analysis on the preliminary three-dimensional model; based on the biomechanical analysis, updates the preliminary three-dimensional model data of the medical 4D distal radial splint to obtain the final three-dimensional model; performs layered slicing and printing path planning on the final three-dimensional model; uses the processed final three-dimensional model to print the initial state of the distal radial splint using printing materials through the 4D printing process; the internal contour of the distal radial splint in the initial state is the same as the surface contour of the distal radial fracture, and the inner surface of the distal radial splint in the initial state fits the surface of the distal radial fracture.

[0004] However, the existing 4D printed distal radius splint will become loose after fixing the fracture for a period of time, and it is impossible to ensure that the splint is always clamped on the affected area with appropriate force. Therefore, the patient needs to go to the hospital for adjustment, which is time-consuming and labor-intensive and very inconvenient to use. Summary of the invention

[0005] The present invention provides an intelligent fully automatic adjustable 4D printed distal radius splint, which aims to solve the problem that the existing 4D printed distal radius splint becomes loose after fixing the fracture for a period of time, and it is impossible to ensure that the splint is always clamped on the affected area with appropriate force. Therefore, the patient needs to go to the hospital for adjustment, which is time-consuming and labor-intensive and very inconvenient to use.

[0006] The embodiment of the present invention provides an intelligent, fully automatic and adjustable 4D printed distal radial splint, comprising splint one, splint two, splint three and splint four, wherein the splint one, splint two, splint three and splint four are arranged in sequence in a circle, and the sides of the splint one and splint four as well as the splint two and splint three that are close to each other are fixedly connected to a pair of bandage one, and a micro-tension sensor is installed between the two bandages facing each other on the splint one and splint four as well as the splint two and splint three, the other side of the splint two is fixedly connected to bandage two, a winding piece is installed on the outer wall surface of the splint one, and the winding piece is connected to the other end of bandage two, the sides of the splint three and splint four that are close to each other are fixedly connected to a pair of bandage three, and the two bandages facing each other on the splint three and splint four are connected via a connecting piece.

[0007] Furthermore, the winding member includes a shell fixedly connected to a small splint 1, two partitions are fixedly connected to the shell, and the partitions sequentially separate the shell into assembly chamber 1, assembly chamber 2 and assembly chamber 3 from top to bottom. A rotating shaft is rotated in the assembly chamber 2, a motor is fixedly connected to the assembly chamber 1, the rotating part of the motor is connected to one end of the rotating shaft, and the rotating shaft is connected to the other end of the bandage 2, and a microchip and a button battery are installed in the assembly chamber 3.

[0008] Furthermore, an anti-rotation unit is installed in the second assembly chamber, and the anti-rotation unit includes a turntable fixedly connected to the outer side of the rotating shaft and a fixed block at the bottom of the second assembly chamber, the electric telescopic rod is fixedly connected to the wall surface of the fixed block facing the turntable, the movable end of the electric telescopic rod is fixedly connected to the stop teeth, and a plurality of stop tooth openings are reserved at equal intervals on the wall surface of the turntable facing the electric telescopic rod, and the stop teeth can be engaged in the stop tooth openings.

[0009] Further, the connecting member comprises a pair of rectangular covers that are fixedly connected in mirror image, and assembly openings are reserved on the lateral sides of the rectangular covers, and connecting columns are arranged in the assembly openings, and one end of the connecting column located outside the rectangular cover is fixedly connected to the rectangular sheet, and further comprises:

[0010] A fastening and feeding module, wherein the fastening and feeding unit comprises a movable column 1, a guide column 1, a support bar, a rectangular frame, a side sleeve, a linkage unit, a linkage control unit and a fastening and feeding unit;

[0011] Side sleeves are installed on both sides of the rectangular cover, a movable rectangular frame is installed vertically on the outer wall of the side sleeve, and a movable guide column 1 is installed horizontally on the side sleeve, and the two ends of the guide column 1 are fixedly connected to the inner surface of the rectangular cover;

[0012] A linkage unit is installed at the upper end of the rectangular cover, and a linkage control unit is also installed at the upper end of the rectangular frame. The linkage control unit is used to control the linkage between the linkage unit and the rectangular frame, thereby achieving the purpose of changing and controlling the side sleeve;

[0013] A plurality of support strips are screwed onto the inner surface of the rectangular cover and around the assembly opening, and the outer surface of the support strips and the inner surface of the rectangular cover are connected via a movable column 1, and the movable column 1 is used to make the support strips and the inner peripheral surface of the side sleeve closely attached;

[0014] A fastening and feeding unit is arranged inside the support bar. When the side sleeve moves toward the center of the rectangular cover along the guide column, the fastening and feeding unit is used to transport the connecting column toward the center of the rectangular cover and fasten the connecting column.

[0015] A clamping module is arranged in the middle of the rectangular cover and is used to fasten the connecting columns on both sides.

[0016] Furthermore, the linkage unit comprises a knob and a rotating column, the rotating column is arranged at the upper end of the rectangular cover, the two ends of the rotating column are screwed to the surface of the rectangular cover, and one end of the rotating column extends out of the rectangular cover and is fixedly connected to the knob;

[0017] The linkage control unit comprises a linkage column, a second guide column, an upper support, a movable frame, a spiral beryllium copper wire, an arched piece and a connecting platform, the upper end of the rectangular frame is fixedly connected to the arched piece that can be connected with the rotating column via the connecting platform, the upper end of the rotating column and the movable frame is also arranged in the rectangular cover, the upper wall surface of the movable frame is connected with the upper wall surface inside the rectangular cover via the spiral beryllium copper wire, a linkage column is also arranged in the middle of the upper end of the movable frame, the linkage column passes through the upper end of the rectangular cover, and the guide column two is movably arranged on both longitudinal sides of the upper end of the rectangular frame, the lateral span of the guide column two is the area where the rectangular frame changes, the two ends of the guide column two are fixedly connected to the upper support, and the top of the upper support is fixedly connected to the movable frame; when there is no external action, under the cooperation of the deformation force of the spiral beryllium copper wire one, the arched piece and the rotating column are tightly attached, and the arched piece and the rotating column are threaded via a thread mouth;

[0018] The arched piece is an arched frame, and a thread opening for threading with a rotating column is reserved on the inner surface of the arched piece. When the arched pieces at the upper ends of a pair of rectangular frames are threaded with the rotating column, the rotating column is used to pull the pair of arched pieces together to approach or move away;

[0019] The two longitudinal sides of the side sleeve are fixedly connected with concave movable plates, and the movable plates are movably connected to the rectangular frame. The second guide column is arranged opposite to the first guide column, and two pairs of the first guide column are evenly spaced around the side sleeve. The angle between the linkage column and the second guide column is ninety degrees, and there is an obstruction between the second guide column and the rectangular frame.

[0020] Furthermore, the fastening and feeding unit includes a movable platform, a movable bar, a tensioning screw, a second movable column, a pressure plate and a connecting seat. A groove is reserved on the inner wall surface of the support bar, and the movable platform is movably installed in the groove. The movable platform is also provided with a tensioning screw for assembling the movable platform on the support bar. One end of the movable platform is screwed to the movable bar, and the other end of the movable platform is fixedly connected to the second movable column. The end of the second movable column farther from the movable platform is fixedly connected to the movable bar, and the end of the movable bar farther from the movable platform is fixedly connected to the connecting seat, and a pressure plate is installed on the connecting seat.

[0021] Furthermore, the movable platform is an I-shaped structure, and the movable bar is located at a side farther from the middle of the rectangular cover;

[0022] The movable column one is an arch-shaped structure, and the movable column one is on the track where the support bar rotates;

[0023] The second movable column is an arch-shaped structure, and the second movable column is located on the rotation track of the movable bar.

[0024] Furthermore, the outer peripheral surface of the pressure plate is sunken inwards, and two sides of the pressure plate are fixedly connected to the connecting seat.

[0025] Further, the clamping module comprises an inner sleeve, a lower support, a pressing sheet, two spiral beryllium copper wires and three movable pillars, the inner sleeve is arranged in the middle of the rectangular cover, the inner sleeve and a plurality of guide pillars are fixedly connected, the lower end of the inner sleeve is fixedly connected to the lower support, and the lower wall surface of the lower support is fixedly connected to the lower wall surface of the rectangular cover;

[0026] A plurality of movable columns three are fixedly connected to the inner wall surface of the inner sleeve at equal intervals, and the movable part of the movable column three is screwed to a concave pressing piece, and the connecting columns on both sides are pressed tightly by the pressing piece;

[0027] The two ends of the pressing sheet and the movable part of the movable column three are connected via a spiral beryllium copper wire two, and the spiral beryllium copper wire two is used to support the pressing sheet.

[0028] Furthermore, a plurality of barrier sheets are fixedly connected to the inner peripheral surface of the assembly opening at equal intervals, and the barrier sheets are rubber sheets;

[0029] When there is no assembly connection column in the assembly opening, a plurality of the blocking pieces block the assembly opening;

[0030] When the connection column is installed in the assembly opening, the blocking piece is pushed open by the connection column, and the blocking piece blocks the assembly opening.

[0031] The beneficial effects of the present invention are:

[0032] 1. When the present invention is in use, small splint one, small splint two, small splint three and small splint four are wrapped around the fracture, and bandage three is connected through a connecting piece, and then small splint one, small splint two, small splint three and small splint four are fastened to the fracture, so as to achieve the purpose of treating the fracture. During use, a micro-tension sensor detects the tension borne by bandage one. When the micro-tension sensor detects that the tension becomes smaller, the clamping force of the small splint on the affected part becomes smaller, and the micro-tension sensor transmits a signal to the winding piece, and the winding piece winds up the bandage two to pull the bandage two closer, so that small splint one, small splint two, small splint three and small splint four are fastened to the fracture, so that the clamping force of the small splint on the fracture can be adjusted by itself, ensuring that the small splint can always be clamped on the affected part with appropriate force. The use is very inconvenient and saves time and effort.

[0033] 2. The present invention can assemble connecting columns of various specifications by changing the position of the side sleeve through the installation of connecting parts, thereby reducing the difficulty of connecting column processing; when the side sleeve changes, the support bar pulls the movable column to change, and the connecting column is conveyed and tightened inwardly through the tightening feeding unit, thereby ensuring that the connecting column and the clamping module are in close contact, thereby enhancing the reliability of the tightening of the connecting column; the user can control the rotating column through the knob, thereby changing the position of the side sleeve, which is very convenient to use; the rectangular frame and the side sleeve are movably connected, and the guide column ensures that the side sleeve changes smoothly, and the vertical change of the rectangular frame cannot affect the vertical position of the side sleeve; no matter what the specifications of the connecting column are, the structure of the pressing sheet can ensure that the connecting column is tightened quickly and securely, thereby ensuring the connection speed and reliability.

[0034] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0036] Figure 1 It is a schematic diagram of the main structure of an embodiment of the present invention;

[0037] Figure 2 It is a rear view structural schematic diagram of an embodiment of the present invention;

[0038] Figure 3 It is a schematic diagram of the cross-sectional structure of a winding member according to an embodiment of the present invention;

[0039] Figure 4 A schematic diagram of the stop tooth structure of an embodiment of the present invention;

[0040] Figure 5 This is a schematic diagram of the stop tooth distribution structure of an embodiment of the present invention;

[0041] Figure 6 A schematic diagram of the structure of a connector according to an embodiment of the present invention;

[0042] Figure 7 This is a schematic diagram of the assembly structure of the connecting column according to an embodiment of the present invention;

[0043] Figure 8 For the embodiment of the present invention Figure 7 A schematic diagram of the cross-sectional structure of;

[0044] Fig. 9 For the embodiment of the present invention Figure 8 A schematic diagram of the structure from another angle;

[0045] Fig.10 For the embodiment of the present invention Fig. 9 A schematic diagram of the structure at M of FIG.

[0046] Fig.11 For the embodiment of the present invention Fig. 9 A schematic diagram of the enlarged structure at N;

[0047] Fig.12 For the embodiment of the present invention Fig. 9 A schematic diagram of the structure at P of FIG.

[0048] Fig.13 For the embodiment of the present invention Fig. 9 A schematic diagram of the structure at Q of FIG.

[0049] Figure numerals: 1, small splint 1; 2, small splint 2; 3, small splint 3; 4, small splint 4; 5, bandage 1; 6, micro tension sensor; 7, bandage 2; 8, winding piece; 9, bandage 3; 10, connecting piece; 81, housing; 82, partition; 83, rotating shaft; 84, motor; 85, microchip; 86, button battery; 87, anti-rotation unit; 871, turntable; 872, fixing block; 873, electric telescopic rod; 874, stop teeth; 875, stop teeth; 101, linkage column; 102, rectangular cover; 103, assembly port; 104, connecting column; 105, movable column 1; 106, guide column 1; 107, support strip; 108 , guide column two; 109, upper support; 1010, movable frame; 1011, rectangular frame; 1012, variable sheet; 1013, side sleeve; 1014, inner sleeve; 1015, lower support; 1016, spiral beryllium copper wire one; 1017, knob; 1018, rotating column; 1019, arched sheet; 1020, connecting platform; 1021, groove; 1022, movable platform; 1023, movable strip; 1024, tensioning screw; 1025, movable column two; 1026, pressure plate; 1027, connecting seat; 1028, pressure sheet; 1029, spiral beryllium copper wire two; 1030, movable column three; 1031, barrier sheet; 1032, rectangular sheet. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] Reference Figure 1-Figure 13The embodiment of the present invention provides an intelligent fully automatic adjustable 4D printed distal radial splint, comprising a splint 1, a splint 2, a splint 3, and a splint 4, wherein the splint 1, the splint 2, the splint 3, and the splint 4 are arranged in a circle, and a pair of bandages 5 are fixedly connected to the sides of the splint 1 and the splint 4 and the splint 2 and the splint 3. A miniature tension sensor 6 is installed between the two bandages 5 facing each other on the splint 2 and the small splint 3, the other side of the small splint 2 is fixedly connected to the bandage 2 7, a winding piece 8 is installed on the outer wall of the small splint 1, and the winding piece 8 is connected to the other end of the bandage 2 7, a pair of bandages 3 9 are fixedly connected to the sides close to the small splint 3 3 and the small splint 4 4, and the two bandages 3 9 facing each other on the small splint 3 3 and the small splint 4 4 are connected via a connecting piece 10.

[0052] When in use, the small splint 1, the small splint 2, the small splint 3 3 and the small splint 4 4 are wrapped around the fracture, and the bandage 3 9 is connected through the connecting piece 10, and then the small splint 1, the small splint 2, the small splint 3 3 and the small splint 4 are fastened to the fracture, so as to achieve the purpose of treating the fracture. During use, the micro-tension sensor 6 detects the tension borne by the bandage 1 5. When the micro-tension sensor 6 detects that the tension becomes smaller, the clamping force of the small splint on the affected part becomes smaller, and the micro-tension sensor 6 transmits a signal to the winding piece 8, and the winding piece 8 winds up the bandage 2 7 to pull the bandage 2 7 closer, so that the small splint 1, the small splint 2, the small splint 3 3 and the small splint 4 4 are fastened to the fracture, so that the clamping force of the small splint on the fracture can be adjusted by itself, ensuring that the small splint can always be clamped on the affected part with appropriate force. It is very inconvenient to use and saves time and effort.

[0053] Reference Figure 1 and Figure 3 The winding member 8 includes a shell 81 fixedly connected to a small splint 1, two partitions 82 are fixedly connected to the shell 81, and the partitions 82 sequentially separate the shell 81 into assembly chamber 1, assembly chamber 2 and assembly chamber 3 from top to bottom. A rotating shaft 83 is rotated in the assembly chamber 2, and a motor 84 is fixedly connected to the assembly chamber 1. The rotating part of the motor 84 is connected to one end of the rotating shaft 83, and the rotating shaft 83 is connected to the other end of the bandage 2 7. A microchip 85 and a button battery 86 are installed in the assembly chamber 3.

[0054] When the clamping force of the small splint on the affected part becomes smaller, the motor 84 pulls the shaft 83 to rotate, and the rotating shaft 83 reels the bandage 2 7, and then increases the clamping force of the small splint on the affected part by tightening the bandage, thereby ensuring the fixing effect of the small splint on the affected part. When the force of the small splint on the affected part is too great, the motor 84 is reversed, causing the shaft 83 to rotate in the opposite direction and release the bandage 2 7, so that the small splint can meet the clamping force on the affected part.

[0055] Reference Figure 3-Figure 5 An anti-rotation unit 87 is also installed in the assembly chamber 2. The anti-rotation unit 87 includes a turntable 871 fixedly connected to the outside of the rotating shaft 83 and a fixed block 872 at the bottom of the assembly chamber 2. The electric telescopic rod 873 is fixedly connected to the wall of the fixed block 872 facing the turntable 871. The movable end of the electric telescopic rod 873 is fixedly connected to the stop tooth 874. A plurality of stop teeth 875 are reserved at equal intervals on the wall of the turntable 871 facing the electric telescopic rod 873. The stop teeth 874 can be engaged in the stop teeth 875.

[0056] When the rotating shaft 83 needs to rewind the bandage 27, the electric telescopic rod 873 contracts and moves the stop tooth 874 out of the stop tooth mouth 875. At this time, the rotating shaft 83 can rotate. When the rotating shaft 83 completes the rewinding of the bandage 27, the electric telescopic rod 873 extends and pushes the stop tooth 874 to move, so that the stop tooth 874 is engaged in the stop tooth mouth 875, and then the rotating shaft 83 is positioned, which can effectively prevent the rotating shaft 83 from rotating after rewinding, ensure the stable rewinding of the bandage 27, and ensure the clamping strength of the small splint after rewinding.

[0057] The motor 84, the microchip 85, the button battery 86, the electric telescopic rod 873 and the micro tension sensor 6 are electrically connected. The model of the microchip 85 is STC89C52, and the model of the micro tension sensor 6 is ZNLBS.

[0058] The button battery 86 provides power for the operation of the components, and the micro-tension sensor 6 monitors the tension between the small splints. When the tension between the small splints becomes smaller, the clamping force of the small splints on the affected part will also become smaller. The micro-tension sensor 6 transmits a signal to the micro-chip 85, and the micro-chip 85 controls the extension or shortening of the electric telescopic rod 873, and the micro-chip 85 controls the rotation of the rotating part of the motor 84, thereby realizing automatic adjustment of the clamping force of the small splint on the affected part.

[0059] Reference Figure 7-Figure 11 The connector 10 comprises a pair of mirror-connected rectangular covers 102, with assembly openings 103 reserved on both lateral sides of the rectangular covers 102, a connector column 104 is arranged in the assembly opening 103, and one end of the connector column 104 located outside the rectangular cover 102 is fixedly connected to a rectangular sheet 1032, and further comprises:

[0060] The fastening and feeding module includes a movable column 105, a guide column 106, a support bar 107, a rectangular frame 1011, a side sleeve 1013, a linkage unit, a linkage control unit and a fastening and feeding unit;

[0061] Side sleeves 1013 are installed on both sides of the rectangular cover 102, and a movable rectangular frame 1011 is vertically installed on the outer wall of the side sleeve 1013. A movable guide column 106 is also horizontally installed on the side sleeve 1013, and both ends of the guide column 106 are fixedly connected to the inner surface of the rectangular cover 102;

[0062] A linkage unit is installed at the upper end of the rectangular cover 102, and a linkage control unit is also installed at the upper end of the rectangular frame 1011. The linkage control unit is used to control the linkage between the linkage unit and the rectangular frame 1011, thereby achieving the purpose of changing and controlling the side sleeve 1013.

[0063] A plurality of support strips 107 are screwed on the inner surface of the rectangular cover 102 and around the assembly opening 103. The outer surface of the support strips 107 and the inner surface of the rectangular cover 102 are connected via a movable column 105. The movable column 105 is used to make the support strips 107 and the inner surface of the side sleeve 1013 closely attached.

[0064] A fastening and feeding unit is installed inside the support bar 107. When the side sleeve 1013 moves toward the center of the rectangular cover 102 along the guide column 106, the fastening and feeding unit is used to transport the connecting column 104 toward the center of the rectangular cover 102 and fasten the connecting column 104.

[0065] The clamping module is installed in the middle of the rectangular cover 102 and is used to fasten the connecting columns 104 on both sides.

[0066] The linkage control unit is used to control the linkage connection between the linkage unit and the rectangular frame 1011, so as to achieve the purpose of controlling the change of the side sleeve 1013. The position of a pair of side sleeves 1013 is changed as needed to change the connection between the side sleeve 1013 and the support bar 107. When the side sleeve 1013 moves toward the middle of the rectangular cover 102 along the guide column 106, the fastening and feeding unit can transport the connecting column 104 toward the middle of the rectangular cover 102 and fasten the connecting column 104, so that the connecting column 104 and the clamping module are tightly pressed, and the clamping module fastens the connecting columns 104 on both sides to enhance the reliability of the connection of the connecting columns 104. The side sleeve 1013 can be kept stable through the guide column 106, and can be pulled by the rectangular frame 1011 to move stably along the guide column 106; the support bar 107 and the inner surface of the side sleeve 1013 can be in close contact through the movable column 105, so after the side sleeve 1013 changes its position, the angle of the support bar 107 can be changed together to improve stability.

[0067] Through the adjustable fastening and feeding unit and the pressing module, it can be used for connecting columns 104 of various specifications, ensuring the reliable connection of the connecting column 104, easy use and fast assembly.

[0068] The outer peripheral wall of the connecting column 104 and the fastening feeding unit are in close contact and cooperate with each other, and the connecting column 104 and the pressing module are in close contact and cooperate with each other, so as to achieve the purpose of firm fastening.

[0069] Reference Figure 8-Figure 10 The linkage unit includes a knob 1017 and a rotating column 1018. The rotating column 1018 is installed at the upper end of the rectangular cover 102. The two ends of the rotating column 1018 are screwed to the surface of the rectangular cover 102. One end of the rotating column 1018 extends out of the rectangular cover 102 and is fixedly connected to the knob 1017. The rotating column 1018 can be pulled to rotate through the knob 1017.

[0070] The linkage control unit includes a linkage column 101, a guide column 108, an upper support 109, a movable frame 1010, a spiral beryllium copper wire 1016, an arched piece 1019 and a connecting platform 1020. The upper end of the rectangular frame 1011 is fixedly connected to the arched piece 1019 that can be connected to the rotating column 1018 through the connecting platform 1020. A thread opening is reserved on the outer circumference of the rotating column 1018, and a thread opening is reserved on the inner surface of the arched piece 1019. The rotating column 1018 and the arched piece 1019 are threaded to each other through the thread opening. The movable frame 1010 is also installed at the upper end of the rotating column 1018 and is located in the rectangular cover 102. The upper wall surface of the movable frame 1010 and the upper wall surface inside the rectangular cover 102 are connected. It is connected via a spiral beryllium copper wire 1016, and a linkage column 101 is also installed in the middle of the upper end of the movable frame 1010. The linkage column 101 passes through the upper end of the rectangular cover 102. Guide columns 108 are movably installed on both longitudinal sides of the upper end of the rectangular frame 1011. The lateral span of the guide column 108 is the area where the rectangular frame 1011 changes. The two ends of the guide column 108 are fixedly connected to the upper support 109, and the top of the upper support 109 is fixedly connected to the movable frame 1010; when there is no external action, under the cooperation of the deformation force of the spiral beryllium copper wire 1016, the arched piece 1019 and the rotating column 1018 are tightly attached, and the arched piece 1019 and the rotating column 1018 are threaded together via the thread mouth.

[0071] The arched piece 1019 is an arched structure, and a threaded opening for threaded connection with the rotating column 1018 is reserved on the inner surface of the arched piece 1019 to ensure the reliability of separation and linkage.

[0072] The guide post 108 is arranged opposite to the guide post 106, and the angle between the linkage post 101 and the guide post 108 is 90 degrees. By pressing the linkage post 101, the entire structure consisting of the guide post 108, the upper support 109 and the movable frame 1010 can be moved downward, and the spiral beryllium copper wire 1016 is extended, and then the rectangular frame 1011 is moved downward along the side sleeve 1013, so that the arch piece 1019 and the rotating post 1018 are separated, and the rotating post 1018 cannot pull the arch piece 1019 to move. Two pairs of guide posts 106 are arranged at equal intervals around the side sleeve 1013 to improve the stability of the movement of the side sleeve 1013.

[0073] Two pairs of spiral beryllium copper wires 1016 are mirror-mounted on the upper wall of the movable frame 1010 to ensure stable support for the movable frame 1010.

[0074] The concave movable pieces 1012 are fixedly connected to the two longitudinal sides of the side sleeve 1013 , and the movable pieces 1012 and the rectangular frame 1011 are movably connected to ensure the reliability of the connection between the rectangular frame 1011 and the side sleeve 1013 .

[0075] There is an obstruction between the guide column 108 and the rectangular frame 1011. When the rotating column 1018 pulls the rectangular frame 1011 to change, an obstruction occurs, which can ensure a stable change and prevent the deformation force of the movable column 105 from pulling the side sleeve 1013 to change after the arch piece 1019 and the rotating column 1018 are separated.

[0076] When the arched pieces 1019 at the upper ends of a pair of rectangular frames 1011 are threadedly connected to the rotating column 1018, the rotating column 1018 is used to pull the pair of arched pieces 1019 together to move closer or away. This structure allows the connecting columns 104 on both sides to be pressed and tightened together after the adjustment, thereby speeding up the connection.

[0077] Reference Figure 8 , Fig. 9 and Fig.11 The movable column 105 is an arch-shaped structure, and the movable column 105 is located on the rotation track of the support bar 107, ensuring that the movable column 105 firmly supports the support bar 107.

[0078] The fastening and feeding unit includes a movable platform 1022, a movable bar 1023, a tensioning screw 1024, a movable column 1025, a pressure plate 1026 and a connecting seat 1027. A groove 1021 is reserved on the inner wall of the support bar 107. The movable platform 1022 is movably installed in the groove 1021. The movable platform 1022 is an I-shaped structure. A tensioning screw 1024 for assembling the movable platform 1022 on the support bar 107 is also installed on the movable platform 1022. One end of the movable platform 1022 is screwed to the movable bar 1023, and the other end of the movable platform 1022 is fixedly connected to the movable bar 1023. The movable column 1025 and the movable bar 1023 are located on a side farther from the middle of the rectangular cover 102. The end of the movable column 1025 farther from the movable platform 1022 is fixedly connected to the movable bar 1023. The movable column 1025 is an arch-shaped structure. The movable column 1025 is located on the rotation track of the movable bar 1023. The end of the movable bar 1023 farther from the movable platform 1022 is fixedly connected to the connecting seat 1027. A pressure plate 1026 is mounted on the connecting seat 1027. The outer peripheral surface of the pressure plate 1026 is sunken inwards, thereby enhancing the reliability of the pressure plate 1026 in fastening and conveying the connecting column 104.

[0079] The two sides of the pressure plate 1026 are fixedly connected to the connecting seat 1027; when the pressure plate 1026 and the connecting seat 1027 are fixedly connected, the pressure plate 1026 cannot rotate. When the support bar 107 rotates, the movable column 1025 is shortened, and the pressure plate 1026 can smoothly transport and tighten the connecting column 104.

[0080] Reference Figure 8 , Fig. 9 and Fig.12The clamping module includes an inner sleeve 1014, a lower support 1015, a pressing sheet 1028, a spiral beryllium copper wire 1029 and a movable column 1030. The inner sleeve 1014 is arranged in the middle of the rectangular cover 102. The inner sleeve 1014 and a plurality of guide columns 106 are fixedly connected. The lower end of the inner sleeve 1014 is fixedly connected to the lower support 1015. The lower wall surface of the lower support 1015 is fixedly connected to the lower wall surface of the rectangular cover 102. The stability of the inner sleeve 1014 and the side sleeve 1013 can be ensured through the lower support 1015. The inner wall surface of the inner sleeve 1014 A plurality of movable columns 1030 are fixedly connected at equal intervals, and the movable part of the movable column 1030 is screwed to the concave pressing piece 1028, and the connecting columns 104 on both sides are pressed by the pressing piece 1028. The two ends of the pressing piece 1028 and the movable part of the movable column 1030 are connected by the spiral beryllium copper wire 1029. The spiral beryllium copper wire 1029 is used to support the pressing piece 1028. When the connecting column 104 and the pressing piece 1028 are pressed tightly, the plurality of pressing pieces 1028 can be pushed outward and the movable column 1030 can be shortened, so as to achieve the purpose of fastening the connecting column 104. And when the specifications of a pair of connecting columns 104 are different, the pressing piece 1028 on one side is pushed open, and the pressing piece 1028 rotates, and the other end of the pressing piece 1028 is quickly fastened to the connecting column 104 on the other side.

[0081] Reference Figure 7 and Fig.13 A number of barrier sheets 1031 are evenly spaced and fixedly connected to the inner circumference of the assembly port 103, and the barrier sheets 1031 are rubber sheets. When the connecting column 104 is not assembled in the assembly port 103, the barrier sheets 1031 block the assembly port 103. When the connecting column 104 is assembled in the assembly port 103, the barrier sheets 1031 are pushed open by the connecting column 104, and the barrier sheets 1031 block the assembly port 103 to prevent garbage from entering the rectangular cover 102.

[0082] The movable column 1 105, the movable column 2 1025 and the movable column 3 1030 all include an outer tube, an inner column and a spiral beryllium copper wire 3. The inner column is movably installed in the outer tube, one end of the inner column passes through the outer tube, and the bottom of the outer tube is connected to the bottom of the inner column via the spiral beryllium copper wire 3.

[0083] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An intelligent fully automatic adjustable 4D printed distal radius splint, characterized in that: It comprises small splint one, small splint two, small splint three and small splint four, and the small splint one, small splint two, small splint three and small splint four are arranged in sequence in a circle, the small splint one and small splint four and the small splint two and small splint three are connected to a pair of bandage one on their adjacent sides, a micro tension sensor is installed between two bandages directly facing each other on the small splint one and small splint four and small splint two and small splint three, the other side of the small splint two is connected to bandage two, a winding piece is installed on the outer wall of the small splint one, and the winding piece is connected to the other end of bandage two, the small splint three and small splint four are connected to a pair of bandage three on their adjacent sides, and the two bandages directly facing each other on the small splint three and small splint four are connected via a connector.

2. The intelligent fully automatic adjustable 4D printed distal radius splint according to claim 1, characterized in that: The winding member includes a shell fixedly connected to a small splint 1, two partitions fixedly connected to the shell, and the partitions sequentially separate the shell into assembly chamber 1, assembly chamber 2 and assembly chamber 3 from top to bottom. A rotating shaft is rotated in the assembly chamber 2, and a motor is fixedly connected to the assembly chamber 1. The rotating part of the motor is connected to one end of the rotating shaft, and the rotating shaft is connected to the other end of the bandage 2. A microchip and a button battery are installed in the assembly chamber 3.

3. The intelligent fully automatic adjustable 4D printed distal radius splint according to claim 2, characterized in that: An anti-rotation unit is also installed in the second assembly chamber, and the anti-rotation unit includes a turntable fixedly connected to the outer side of the rotating shaft and a fixed block at the bottom of the second assembly chamber, the electric telescopic rod is fixedly connected to the wall of the fixed block facing the turntable, the movable end of the electric telescopic rod is fixedly connected to the stop teeth, and a plurality of stop teeth are reserved at equal intervals on the wall of the turntable facing the electric telescopic rod, and the stop teeth can be engaged in the stop teeth.

4. The intelligent fully automatic adjustable 4D printed distal radius splint according to claim 1, characterized in that: The connecting piece comprises a pair of rectangular covers which are fixedly connected in mirror image, and assembly openings are reserved on the lateral sides of the rectangular covers, and connecting columns are arranged in the assembly openings, and one end of the connecting column which is located outside the rectangular cover is fixedly connected to the rectangular sheet, and further comprises: A fastening and feeding module, wherein the fastening and feeding unit comprises a movable column 1, a guide column 1, a support bar, a rectangular frame, a side sleeve, a linkage unit, a linkage control unit and a fastening and feeding unit; Side sleeves are installed on both sides of the rectangular cover, a movable rectangular frame is installed vertically on the outer wall of the side sleeve, and a movable guide column 1 is installed horizontally on the side sleeve, and the two ends of the guide column 1 are fixedly connected to the inner surface of the rectangular cover; A linkage unit is installed at the upper end of the rectangular cover, and a linkage control unit is also installed at the upper end of the rectangular frame. The linkage control unit is used to control the linkage between the linkage unit and the rectangular frame, thereby achieving the purpose of changing and controlling the side sleeve; A plurality of support strips are screwed onto the inner surface of the rectangular cover and around the assembly opening, and the outer surface of the support strips and the inner surface of the rectangular cover are connected via a movable column 1, and the movable column 1 is used to make the support strips and the inner peripheral surface of the side sleeve closely attached; A fastening and feeding unit is arranged inside the support bar. When the side sleeve moves toward the center of the rectangular cover along the guide column, the fastening and feeding unit is used to transport the connecting column toward the center of the rectangular cover and fasten the connecting column. A clamping module is arranged in the middle of the rectangular cover and is used to fasten the connecting columns on both sides.

5. The intelligent fully automatic adjustable 4D printed distal radius splint according to claim 4, characterized in that: The linkage unit comprises a knob and a rotating column. The rotating column is arranged on the upper end of the rectangular cover. The two ends of the rotating column are screwed to the surface of the rectangular cover. One end of the rotating column extends out of the rectangular cover and is fixedly connected to the knob. The linkage control unit comprises a linkage column, a second guide column, an upper support, a movable frame, a spiral beryllium copper wire, an arched piece and a connecting platform, the upper end of the rectangular frame is fixedly connected to the arched piece that can be connected with the rotating column via the connecting platform, the upper end of the rotating column and the movable frame is also arranged in the rectangular cover, the upper wall surface of the movable frame is connected with the upper wall surface inside the rectangular cover via the spiral beryllium copper wire, a linkage column is also arranged in the middle of the upper end of the movable frame, the linkage column passes through the upper end of the rectangular cover, and the guide column two is movably arranged on both longitudinal sides of the upper end of the rectangular frame, the lateral span of the guide column two is the area where the rectangular frame changes, the two ends of the guide column two are fixedly connected to the upper support, and the top of the upper support is fixedly connected to the movable frame; when there is no external action, under the cooperation of the deformation force of the spiral beryllium copper wire one, the arched piece and the rotating column are tightly attached, and the arched piece and the rotating column are threaded via a thread mouth; The arched piece is an arched frame, and a thread opening for threading with a rotating column is reserved on the inner surface of the arched piece. When the arched pieces at the upper ends of a pair of rectangular frames are threaded with the rotating column, the rotating column is used to pull the pair of arched pieces together to approach or move away; The two longitudinal sides of the side sleeve are fixedly connected with concave movable plates, and the movable plates are movably connected to the rectangular frame. The second guide column is arranged opposite to the first guide column, and two pairs of the first guide column are evenly spaced around the side sleeve. The angle between the linkage column and the second guide column is ninety degrees, and there is an obstruction between the second guide column and the rectangular frame.

6. The intelligent fully automatic adjustable 4D printed distal radius splint according to claim 5, characterized in that: The fastening and feeding unit includes a movable platform, a movable bar, a tensioning screw, a second movable column, a pressure plate and a connecting seat. A groove is reserved on the inner wall surface of the support bar, and the movable platform is movably installed in the groove. The movable platform is also provided with a tensioning screw for assembling the movable platform on the support bar. One end of the movable platform is screwed to the movable bar, and the other end of the movable platform is fixedly connected to the second movable column. The end of the second movable column farther from the movable platform is fixedly connected to the movable bar, and the end of the movable bar farther from the movable platform is fixedly connected to the connecting seat, and a pressure plate is installed on the connecting seat.

7. The intelligent fully automatic adjustable 4D printed distal radius splint according to claim 6, characterized in that: The movable platform is in an I-shaped structure, and the movable bar is located on a side farther from the middle of the rectangular cover; The movable column one is an arch-shaped structure, and the movable column one is on the track where the support bar rotates; The second movable column is an arch-shaped structure, and the second movable column is located on the rotation track of the movable bar.

8. The intelligent fully automatic adjustable 4D printed distal radius splint according to claim 6, characterized in that: The outer peripheral surface of the pressure plate is sunken inwards, and two sides of the pressure plate are fixedly connected to the connecting seat.

9. The intelligent fully automatic adjustable 4D printed distal radius splint according to claim 5, characterized in that: The clamping module comprises an inner sleeve, a lower support, a pressing sheet, two spiral beryllium copper wires and three movable pillars. The inner sleeve is arranged in the middle of the rectangular cover. The inner sleeve and a plurality of guide pillars are fixedly connected. The lower end of the inner sleeve is fixedly connected to the lower support. The lower wall surface of the lower support is fixedly connected to the lower wall surface of the rectangular cover. A plurality of movable columns three are fixedly connected to the inner wall surface of the inner sleeve at equal intervals, and the movable part of the movable column three is screwed to a concave pressing piece, and the connecting columns on both sides are pressed tightly by the pressing piece; The two ends of the pressing sheet and the movable part of the movable column three are connected via a spiral beryllium copper wire two, and the spiral beryllium copper wire two is used to support the pressing sheet.

10. The intelligent fully automatic adjustable 4D printed distal radius splint according to claim 5, characterized in that: A plurality of barrier sheets are fixedly connected to the inner peripheral surface of the assembly opening at equal intervals, and the barrier sheets are rubber sheets; When there is no assembly connection column in the assembly opening, a plurality of the blocking pieces block the assembly opening; When the connection column is installed in the assembly opening, the blocking piece is pushed open by the connection column, and the blocking piece blocks the assembly opening.

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