Automatic disinfection sealing device for central venous catheter joint of hemodialysis exit

Abstract

This invention provides an automatic disinfection and sealing device for central venous catheter connectors during hemodialysis, comprising a sealing box and an iodine cap, a catheter connector support mechanism, and an iodine cap screwing mechanism disposed within the sealing box. The iodine cap has an internal thread on the inner wall of diameter section I that mates with the external thread on the catheter connector, and a sterile cotton sleeve is disposed on the inner wall of diameter section II. Medical personnel only need to place the catheter connector in the sealing box, and the connector will be automatically disinfected and sealed. The entire process requires no manual disinfection, no manual tightening of the iodine cap, no manual wrapping of the catheter connector, and no manual bonding, reducing the workload of medical personnel, avoiding contamination caused by manual operation, and minimizing the time the catheter connector is exposed to the outside environment, thus significantly reducing the chance of contamination.

Description

Technical Field

[0001] This invention relates to the field of hemodialysis technology, specifically to an automatic disinfection and sealing device for the central venous catheter connector during hemodialysis. Background Technology

[0002] After hemodialysis, the central venous catheter connector requires disinfection and wrapping care. Medical staff should prepare a catheter care kit containing items such as a tray, sterile gloves, sterile drapes, disinfectant, 0.5% iodine gauze, and an iodine cap. After disconnecting the central venous catheter connector from the hemodialysis machine, the medical staff puts on sterile gloves, lays a sterile drape under the connector, wipes the connector with disinfectant for 15 seconds, then screws the iodine cap onto the connector, wipes it again with 0.5% iodine gauze, and finally wraps the connector with sterile gauze, securing it with medical tape to prevent the gauze from falling off.

[0003] The entire process described above was completed on-site in the dialysis clinic. The entire operation was completely exposed to the air. Although medical staff wore sterile gloves, they inevitably came into contact with other items during the operation. Once they came into contact with other items, the central venous catheter connectors could easily become contaminated. In addition, the entire operation was carried out in an exposed state, which could also easily lead to drug contamination. Furthermore, the way the hospital staff wrapped the central venous catheter connectors varied, and the way and position of the medical tape were also different, making it impossible to achieve uniformity. This also resulted in the sterile gauze falling off the central venous catheter connectors after being wrapped, and some central venous catheter connectors that were not completely wrapped also came into contact with the outside world. Summary of the Invention

[0004] To address the shortcomings of the existing technology, the present invention provides an automatic disinfection and sealing device for central venous catheter connectors during hemodialysis to reduce contamination.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An automatic disinfection and sealing device for central venous catheter connectors during hemodialysis includes a sealing box and an iodine cap, a catheter connector support mechanism, and an iodine cap screwing mechanism installed inside the sealing box;

[0007] The inner wall of the iodine cap consists of a diameter segment I near the inner side, a diameter segment II near the outer side, and an annular step formed between diameter segments I and II. The diameter of diameter segment I is smaller than the diameter of diameter segment II. The inner wall of the iodine cap located on diameter segment I has an internal thread that mates with the external thread on the catheter connector. The inner wall of the iodine cap located on diameter segment II has a sterile cotton sleeve. The outer wall of the sterile cotton sleeve is tightly fitted to the inner wall of diameter segment II of the iodine cap, and the inner end of the sterile cotton sleeve abuts against the annular step inside the iodine cap.

[0008] The front wall of the sealed box is provided with a window for placing or retrieving catheter connectors; the catheter connector support mechanism includes a catheter connector placement platform and a clamping platform. The catheter connector placement platform is located on the front wall of the sealed box and near the window. The sealed box is also provided with a sealing mechanism for sealing the window near the front wall. The catheter connector placement platform is provided with a semi-circular lower groove I for placing the venous end of the catheter connector and a semi-circular lower groove II for placing the arterial end of the catheter connector. The clamping platform is located directly above the catheter connector placement platform in a vertically movable manner. The bottom of the clamping platform is provided with a semi-circular upper groove I for clamping the venous end of the catheter connector and a semi-circular upper groove II for clamping the arterial end of the catheter connector. The semi-circular upper groove I and the semi-circular lower groove I are vertically corresponding, and the semi-circular upper groove II and the semi-circular lower groove II are vertically corresponding.

[0009] The iodine cap screwing mechanism includes motor I, cylinder I, cylinder II, motor II, a rotating sleeve, and clamping cylinders. Motor I is fixedly installed inside the sealed box near the front side wall. Cylinder I is fixedly installed on the power output shaft of motor I, with the piston rod of cylinder I extending horizontally towards the middle of the sealed box. Cylinder II is fixedly installed on the end of the piston rod of cylinder I, with the piston rod of cylinder II pointing downwards. Motor II is fixedly installed at the bottom of the piston rod of cylinder II, with the power output shaft of motor II arranged horizontally. The rotating sleeve is fixedly installed on the power output shaft of motor II, with the sleeve opening facing the guide tube connector placement platform. Multiple clamping cylinders are evenly distributed circumferentially inside the rotating sleeve near the center hole, with the piston rods of the clamping cylinders pointing towards the center hole of the rotating sleeve.

[0010] As a preferred embodiment of the present invention, the automatic disinfection and sealing device for the central venous catheter connector during hemodialysis further includes a gauze block disposed within a sealing box, a gauze block bending mechanism, and a moving mechanism that drives the gauze block bending mechanism to move horizontally closer to or further away from the catheter connector placement platform; the gauze block bending mechanism includes a support plate, a folding and flipping plate, a left flipping plate, and a right flipping plate; the rear half of the support plate and the left and right sides of the front half are provided with recessed platforms, and the folding and flipping plate is disposed on the recessed platform of the rear half of the support plate and is driven by a folding and flipping motor to fold forward. The left flip plate is located on a recessed platform on the left side of the front half of the support plate. The left flip plate is driven to flip to the right by a left flip motor. The right flip plate is located on a recessed platform on the right side of the front half of the support plate. The right flip plate is driven to flip to the left by a right flip motor. The gauze block is placed in the middle of the front half of the support plate, on the folded flip plate, the left flip plate, and the right flip plate. The folded flip plate is provided with a through groove I that penetrates the rear side. The left flip plate is provided with a through groove II that penetrates the left side. The right flip plate is provided with a through groove III that penetrates the right side.

[0011] As a preferred embodiment of the present invention, the automatic disinfection and sealing device for central venous catheter connectors during hemodialysis further includes a medical adhesive tape bonding mechanism disposed within a sealed box. The medical adhesive tape bonding mechanism includes cylinder III, a left-right moving cylinder, a rotary motor, cylinder IV, a medical adhesive tape storage box, medical adhesive tape, cylinder V, cylinder VI, and a medical adhesive tape cutting machine. Cylinder III is horizontally positioned above the catheter connector placement platform, and the piston rod of cylinder III extends towards the center of the sealed box. The left-right moving cylinder is fixedly mounted on the piston rod of cylinder III, and the piston rod of the left-right moving cylinder extends and retracts left and right. The rotary motor is fixedly mounted on the piston rod of the left-right moving cylinder. The power output shaft of the rotary motor is vertically downward. Cylinder IV is fixedly mounted on the power output shaft of the rotary motor. The piston rod of cylinder IV is vertically downward. The top of the medical tape storage box is fixed to the bottom end of the piston rod of cylinder IV. The tape outlet of the medical tape storage box faces downward. Cylinder V is connected to the cylinder barrel of cylinder IV through a connecting plate. The piston rod of cylinder V is vertically downward. Cylinder VI is fixedly connected to the bottom end of the piston rod of cylinder V. The piston rod of cylinder VI extends horizontally below the tape outlet of the medical tape storage box. The medical tape cutter is mounted on the piston rod of cylinder VI. The cutting blade on the medical tape cutter corresponds to the medical tape pulled out of the tape outlet of the medical tape storage box.

[0012] As a preferred embodiment of the present invention, the automatic disinfection and sealing device for the central venous catheter connector during hemodialysis further includes a gauze storage mechanism disposed within a sealed box. The gauze storage mechanism includes a cylindrical box, a rotating shaft, and a motor III. The cylindrical box is positioned above a support plate, and the rotating shaft passes through the cylindrical box along its axis. The power output shaft of the motor III is fixedly connected to the rotating shaft, and the axis of the rotating shaft is parallel to the direction of movement of the support plate. Multiple partitions are arranged circumferentially between the outer wall of the rotating shaft and the inner wall of the cylindrical box. A switch door is provided on the corresponding wall of the cylindrical box between two adjacent partitions. One side of the switch door... Hinged to the corresponding partition, an iron block is provided on the other side of the switch door, and an electromagnet is provided on the partition corresponding to the other side of the switch door; a gauze storage cavity is formed between two adjacent partitions and the corresponding switch doors of two adjacent partitions, and a gauze block is placed in each gauze storage cavity; Motor III drives the sealing box to rotate through the rotating shaft. When the switch door on the sealing box rotates to the bottom, the electromagnet corresponding to one of the switch doors rotated to the bottom is de-energized and the switch door opens. The gauze block placed in the gauze storage cavity corresponding to the switch door slides into the middle of the front half of the corresponding support plate, the folding flip plate, the left flip plate, and the right flip plate below.

[0013] As a preferred embodiment of the present invention, the automatic disinfection and sealing device for the central venous catheter connector during hemodialysis further includes an iodine cap ejection mechanism disposed within a sealing box. The iodine cap ejection mechanism includes a guide cylinder, a sealing slide plate, and a cylinder VII. The guide cylinder is horizontally disposed above the catheter connector placement platform. The sealing slide plate is disposed within the guide cylinder and slides and seals against the inner wall of the guide cylinder. The cylinder VII is fixedly disposed on the front side within the guide cylinder. The axis of the guide cylinder is parallel to the axis of the semi-circular lower groove I. The piston rod of the cylinder VII is fixedly connected to the sealing slide plate. Multiple iodine caps are horizontally and sequentially placed on the rear side within the guide cylinder. The piston rod of the cylinder VII extends and pushes the sealing slide plate, causing the iodine caps to move towards the rear outlet of the guide cylinder.

[0014] In a preferred embodiment of the present invention, the disinfectant cotton sleeve is composed of two semi-circular disinfectant cotton sleeves, one side of which is rotatably and sealingly connected; the iodine cap is composed of two semi-circular iodine caps, one side of which is rotatably and sealingly connected, and the other side of each of the two semi-circular iodine caps is provided with a groove along the circumferential direction. An adhesive tape is connected in the groove of one semi-circular iodine cap, and a felt layer is provided in the groove of the other semi-circular iodine cap; when the free end of the adhesive tape in the groove of one semi-circular iodine cap overlaps the felt layer in the corresponding groove of the other semi-circular iodine cap, the other sides of the two semi-circular iodine caps form a sealed connection, and the other sides of the two semi-circular disinfectant cotton sleeves also form a sealed connection.

[0015] In a preferred embodiment of the present invention, the sealing mechanism includes a sealing plate support platform, a sealing plate for sealing the window, and a sealing plate driving cylinder for driving the sealing plate to seal or open the window. The sealing plate support platform is disposed on the front side wall inside the sealing box, and the top surface of the sealing plate support platform is parallel to the bottom surface of the window of the sealing box. The front end of the conduit connector placement platform is installed in the window of the sealing box. The conduit connector placement platform is provided with an operating cavity near the front side for placing the conduit connector into the semi-circular lower groove I and semi-circular lower groove II. The operating cavity is provided with a sealing groove around which the sealing plate can be inserted. The sealing plate support platform is provided with a sliding groove for the sealing plate to slide up and down. The sliding groove communicates with the sealing groove in the vertical direction. The sealing plate driving cylinder is disposed at the bottom of the sealing plate support platform. The piston rod of the sealing plate driving cylinder is vertically upward. The sealing plate is disposed in the sliding groove. The bottom of the sealing plate is fixedly connected to the top end of the piston rod of the sealing plate driving cylinder.

[0016] In a preferred embodiment of the present invention, the moving mechanism includes a front support plate, a rear support plate, a left guide rail, a right guide rail, a lead screw, a moving plate, a motor IV, and a main cylinder. The front and rear support plates are both mounted on the bottom plate of the sealed box, respectively near the front and rear sides. The left and right guide rails are disposed on the bottom plate between the front and rear support plates. The moving plate is placed between the left and right guide rails and slides along them. The lead screw is disposed between the left and right guide rails and parallel to the left guide rail. The lead screw passes through the moving plate and is threaded onto it. The front end of the lead screw is mounted on the front support plate and rotates with it. The rear end of the lead screw passes through the rear support plate and rotates with it. The motor IV is mounted on the bottom plate and located behind the rear support plate. The power output shaft of the motor IV is connected to the rear end of the lead screw. The main cylinder is fixedly mounted on the moving plate, with its piston rod pointing vertically upwards. The support plate is horizontally fixed to the top of the piston rod of the main cylinder.

[0017] In a preferred embodiment of the present invention, a positioning platform is provided on the rear side of the support plate. The front end of the positioning platform is fixedly connected to the rear end of the support plate. Cylinder VIII and baffle are provided on the left and right sides of the positioning platform. The piston rod of cylinder VIII extends horizontally forward. The baffle slides in the front-back direction with the side wall of the positioning platform. The rear end of the baffle is fixedly connected to the piston rod of cylinder VIII on the corresponding side. When the piston rods of cylinder VIII on the left and right sides extend, the baffles on the left and right sides extend outward to the left and right sides of the folding and flipping plate.

[0018] As a preferred embodiment of the present invention, the automatic disinfection and sealing device for central venous catheter connectors during hemodialysis further includes a front fixed support platform, a lifting cylinder IX, a vertical connecting column, a catheter connector pressure cylinder, and a pressure plate disposed within a sealed box; the front fixed support platform is fixedly disposed on the front side wall of the sealed box, the motor I is fixedly mounted on the front fixed support platform, the lifting cylinder IX is fixedly connected to the bottom of the front fixed support platform, the piston rod of the lifting cylinder IX is vertically downward, the vertical connecting column is vertically connected to the bottom end of the piston rod of the lifting cylinder IX, the guide cylinder, the pressing platform, and the cylinder III are all fixedly connected to the vertical connecting column through connectors, the catheter connector pressure cylinder is fixedly connected to the bottom end of the vertical connecting column, the piston rod of the catheter connector pressure cylinder is vertically downward, the pressure plate is fixedly connected to the bottom end of the piston rod of the catheter connector pressure cylinder, the bottom of the pressure plate is an arc-shaped plate matching the outer wall of the catheter connector, and a flexible pad is disposed at the bottom of the pressure plate.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. Medical staff only need to place the catheter connector in the sealed box, and the catheter connector will be automatically disinfected and sealed. The entire process does not require manual disinfection, manual tightening of the iodine cap, manual wrapping of the catheter connector, or manual bonding. This reduces the workload of medical staff, avoids contamination caused by human operation, and also reduces the time the catheter connector is exposed to the outside world, thus greatly reducing the chance of the catheter connector being contaminated.

[0021] 2. The iodine cap has an internal thread and a sterile cotton sleeve. During use, the iodine cap is screwed onto the catheter connector using the cap-sleeving mechanism. The sterile cotton sleeve on the iodine cap is inserted into the catheter connector, providing a push-in sterilization process. Then, motor II drives the iodine cap to rotate, causing the internal thread of the iodine cap to push onto the external thread of the catheter connector, thus achieving aseptic connection between the iodine cap and the catheter connector. This push-in, screw-on method not only sterilizes the tip of the catheter connector but also ensures that the tip is enclosed within the iodine cap, preventing contamination of the catheter connector during sterilization and cap application.

[0022] 3. The present invention is equipped with a gauze block bending mechanism, which realizes the automatic wrapping of the gauze block around the catheter connector through the folding and flipping plate, the left flipping plate and the right flipping plate, reducing the non-standard and inconsistent operation of human operation, and avoiding the risk of contamination caused by human operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the automatic disinfection and sealing device for the central venous catheter connector during hemodialysis.

[0024] Figure 2 This is a schematic diagram of the structure of the catheter connector placed inside the automatic disinfection and sealing device for the central venous catheter connector during hemodialysis.

[0025] Figure 3 This is a schematic diagram of the structure of an iodine tincture cap;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of an iodine cap;

[0027] Figure 5 This is a schematic diagram of the conduit connector placement platform;

[0028] Figure 6 This is a structural diagram of the clamping table;

[0029] Figure 7 This is a schematic diagram of the left side structure of the rotating sleeve;

[0030] Figure 8 This is a schematic diagram of the gauze block bending mechanism;

[0031] Figure 9 This is a structural schematic diagram of the support plate;

[0032] Figure 10 This is a schematic diagram of the structure of a medical adhesive tape bonding mechanism;

[0033] Figure 11 This is a structural diagram of a medical tape storage box;

[0034] Figure 12 This is an exploded view of a medical tape storage box;

[0035] Figure 13 This is a schematic diagram of the internal structure of the cylindrical box;

[0036] Figure 14 yes Figure 13 Enlarged structural diagram at point A;

[0037] Figure 15 This is a schematic diagram of the iodine cap ejection mechanism;

[0038] Figure 16 This is a schematic diagram of the sealing mechanism;

[0039] Figure 17 This is a schematic diagram of the moving mechanism.

[0040] In the diagram: 1—Sealed box; 11—Window; 12—Base plate; 2—Iodine cap; 21—Internal thread; 22—Disinfectant cotton sleeve; 23—Groove; 24—Adhesive tape; 25—Felt layer; 3—Diameter connector support mechanism; 31—Diameter connector placement platform; 311—Semi-circular lower groove I; 312—Semi-circular lower groove II; 32—Pressure platform; 321—Semi-circular upper groove I; 322—Semi-circular upper groove II; 4—Iodine cap screwing mechanism; 41—Motor I; 42—Cylinder I; 43—Cylinder II; 44—Motor II; 45—Rotating sleeve; 46—Clamping Cylinder; 5—Conduit connector; 6—Sealing mechanism; 61—Sealing plate support platform; 62—Sealing plate; 63—Sealing plate drive cylinder; 64—Operating chamber; 65—Sealing groove; 67—Slide groove; 7—Gauze block; 8—Gauze block bending mechanism; 81—Support plate; 82—Folding and flipping plate; 83—Left flipping plate; 84—Right flipping plate; 85—Recessed platform; 86—Folding and flipping motor; 87—Left flipping motor; 88—Right flipping motor; 89—Positioning platform; 891—Cylinder VIII; 892—Baffle; 893—Guide groove; 901—Through groove I; 9 01—Through-slot II; 901—Through-slot III; 9—Moving mechanism; 91—Front support plate; 92—Rear support plate; 93—Left guide rail; 94—Right guide rail; 95—Screw; 96—Moving plate; 97—Motor IV; 98—Main cylinder; 10—Medical tape bonding mechanism; 101—Cylinder III; 102—Rotary motor; 103—Cylinder IV; 104—Medical tape storage box; 1041—Circular bottom cover; 1042—Positioning sleeve; 1043—Circular top cover; 105—Medical tape; 106—Cylinder V; 107—Cylinder VI; 1 08—Medical shoulder shearing mechanism; 109—Connecting plate; 1010—Left and right moving cylinder; 14—Gauze block storage mechanism; 141—Cylindrical box; 142—Rotating shaft; 143—Motor III; 144—Partition plate; 145—Opening and closing door; 146—Iron block; 147—Electromagnet; 15—Iodine cap ejection mechanism; 151—Guide cylinder; 151—Sealing slide plate; 152—Cylinder VII; 16—Front fixed support platform; 17—Lifting cylinder IX; 18—Vertical connecting column; 19—Diad connector pressure cylinder; 20—Pressure plate; 201—Rear fixed support platform. Detailed Implementation

[0041] The present invention will now be described in detail with reference to the embodiments and accompanying drawings.

[0042] like Figure 1 and Figure 2As shown, the automatic disinfection and sealing device for central venous catheter connectors during hemodialysis includes a sealing box 1 and, within the sealing box 1, an iodine cap 2, a catheter connector support mechanism 3, an iodine cap screwing mechanism 4, a gauze block 7, a gauze block bending mechanism 8, a moving mechanism 9 that drives the gauze block bending mechanism 8 to move horizontally towards or away from the catheter connector placement platform 31, a medical adhesive tape bonding mechanism 10, a gauze block storage mechanism 14, an iodine cap ejection mechanism 15, a front fixed support platform 16, a lifting cylinder IX 17, a vertical connecting column 18, a catheter connector pressure cylinder 19, a pressure plate 20, and a rear fixed support platform 201. In this embodiment, the front side refers to the side where the catheter connector 5 is placed in the sealing box 1, and the rear side refers to the side away from the catheter connector 5 when it is placed in the sealing box 1. The front fixed support platform 16 is horizontally fixed on the front side wall of the sealing box 1 and near the top. The lifting cylinder IX 17 is fixedly connected to the bottom of the front fixed support platform 16, and the piston rod of the lifting cylinder IX 17 points vertically downward. The vertical connecting column 18 is vertically connected to the bottom end of the piston rod of the lifting cylinder IX 17. The catheter connector pressure cylinder 19 is fixedly connected to the bottom end of the vertical connecting column 18, and the piston rod of the catheter connector pressure cylinder 19 points vertically downward. The pressure plate 20 is fixedly connected to the bottom end of the piston rod of the catheter connector pressure cylinder 19. The bottom of the pressure plate 20 is an arc-shaped plate that matches the outer wall of the catheter connector 5. A flexible pad is provided at the bottom of the pressure plate 20. The rear fixed support platform 201 is horizontally fixed on the rear side wall of the sealing box 1 and near the top. The front fixed support platform 16 is used to support the iodine cap screwing mechanism 4, the medical tape bonding mechanism 10, the iodine cap ejection mechanism 15, and the lifting cylinder IX 17. The rear fixed support platform 201 is used to support the gauze block storage mechanism 14. The piston rod of the catheter connector pressure cylinder 19 extends downward, driving the flexible pad on the pressure plate 20 to press the catheter connector 5 placed on the catheter connector support mechanism 3, so as to prevent the catheter connector 5 from moving horizontally during the disinfection and sealing process.

[0043] The structure of iodine cap 2 is as follows: Figure 3 and Figure 4As shown, the inner wall of the iodine cap 2 consists of a diameter segment I near the inner side, a diameter segment II near the outer side, and an annular step formed between diameter segments I and II. The diameter of diameter segment I is smaller than that of diameter segment II. The iodine cap 2 has an internal thread 21 on the inner wall of diameter segment I that mates with the external thread on the catheter connector 5. A sterile cotton sleeve 22 is placed on the inner wall of diameter segment II of the iodine cap 2. The outer wall of the sterile cotton sleeve 22 fits tightly against the inner wall of diameter segment II of the iodine cap 2, and the inner end of the sterile cotton sleeve 22 abuts against the annular step inside the iodine cap 2. In use, the iodine cap 2 is fitted onto the catheter connector 5 using the iodine cap screwing mechanism 4. The sterile cotton sleeve 22 on the iodine cap 2 is inserted into the catheter connector 5, and the catheter connector 5 is sterilized by a pushing motion. Then, motor II 44 drives the iodine cap 2 to rotate, causing the internal thread 21 inside the iodine cap 2 to be screwed onto the external thread on the catheter connector 5, thus achieving aseptic connection between the iodine cap 2 and the catheter connector 5. The iodine cap 2 is put on the catheter connector 5 by using a push-and-screw method. This not only disinfects the front end of the catheter connector 5, but also keeps the front end of the catheter connector 5 inside the iodine cap 2, which greatly reduces the chance of the catheter connector 5 being contaminated.

[0044] The sealed box 1 has a window 11 on its front side wall for placing or retrieving the conduit connector 5. The conduit connector support mechanism 3 includes a conduit connector placement platform 31 and a clamping platform 32, such as... Figure 1 and Figure 2 As shown, the catheter connector placement platform 31 is located on the front side wall of the sealing box 1 and near the window 11. The front end of the catheter connector placement platform 31 is installed in the window 11 of the sealing box 1. A sealing mechanism 6 for sealing the window 11 is also provided inside the sealing box 1 near the front side wall. The catheter connector placement platform 31 is provided with a semi-circular lower groove I 311 for placing the venous end of the catheter connector and a semi-circular lower groove II 312 for placing the arterial end of the catheter connector, as shown. Figure 5 As shown, in this embodiment, semi-circular lower grooves I 311 and II 312 are disposed on the rear half of the catheter connector placement platform 31. The catheter connector placement platform 31 has an operating cavity 64 near its front side, allowing the catheter connector 5 to be placed into the semi-circular lower grooves I 311 and II 312. Sealing grooves 65 are provided around the operating cavity 64 for the insertion of a sealing plate 62. A clamping platform 32 is disposed directly above the catheter connector placement platform 31 in a vertically movable manner. In this embodiment, the clamping platform 32 is fixedly connected to the vertical connecting column 18 via a connector. The bottom of the clamping platform 32 has a semi-circular upper groove I 321 for clamping the venous end of the catheter connector and a semi-circular upper groove II 322 for clamping the arterial end of the catheter connector. Figure 6As shown, the first half of the semi-circular upper groove I 321 and the semi-circular lower groove I 311 correspond vertically, and the first half of the semi-circular upper groove II 322 and the semi-circular lower groove II 312 correspond vertically. The catheter connector 5 includes a venous end and an arterial end. The bottom end of the vertical connecting column 18 is connected to two sets of left and right distributed catheter connector pressure cylinders 19 and pressure plates 20. One pressure plate 20 corresponds vertically to the second half of the semi-circular lower groove I 311, and the other pressure plate 20 corresponds vertically to the second half of the semi-circular lower groove II 312. Medical personnel hold catheter connector 5 and place the venous end and arterial end of the catheter connector on the semi-circular lower groove I 311 and semi-circular lower groove II 312 through the operating chamber 64. The piston rod of the lifting cylinder IX 17 extends downward, driving the vertical connecting column 18 and the pressure platform 32 connected to it to move downward, so that the semi-circular upper groove I 321 on the pressure platform 32 presses on the venous end of the catheter connector and the semi-circular upper groove II 322 presses on the arterial end of the catheter connector. At this time, one of the catheter connector pressure cylinders 19 extends downward, driving the flexible pad of the pressure plate 20 below it to press the venous end of the catheter connector, and the other catheter connector pressure cylinder 19 extends downward, driving the flexible pad of the pressure plate 20 below it to press the arterial end of the catheter connector, thereby fixing the venous end and arterial end of the catheter connector.

[0045] The iodine cap rotating mechanism 4 includes a motor I 41, a cylinder I 42, a cylinder II 43, a motor II 44, a rotating sleeve 45, and a clamping cylinder 46, as shown below. Figure 1 and Figure 2 As shown. Motor I 41 is fixedly mounted on the front fixed support platform 16. Cylinder I 42 is fixedly mounted on the power output shaft of motor I 41. The piston rod of cylinder I 42 extends horizontally towards the middle of the sealing box 1. Cylinder II 43 is fixedly mounted on the end of the piston rod of cylinder I 42, with the piston rod of cylinder II 43 pointing downwards. Motor II 44 is fixedly mounted on the bottom of the piston rod of cylinder II 43. The power output shaft of motor II 44 is horizontally positioned. Rotary sleeve 45 is fixedly mounted on the power output shaft of motor II 44. The opening of the rotating sleeve 45 faces the side of the guide tube joint placement platform 31. Multiple clamping cylinders 46 are evenly distributed circumferentially inside the rotating sleeve 45 near the center hole. In this embodiment, four clamping cylinders 46 are arranged inside the rotating sleeve 45, such as... Figure 7As shown, the piston rod of the clamping cylinder 46 points towards the center hole of the rotating sleeve 45. Through the cooperation of motor I 41, cylinder I 42, cylinder II 43, and motor II 44, the clamping cylinder 46 on the rotating sleeve 45 clamps the iodine cap 2 pushed out by the iodine cap ejection mechanism 15. After the clamping cylinder 46 on the rotating sleeve 45 clamps the iodine cap 2, the cooperation of motor I 41, cylinder I 42, cylinder II 43, and motor II 44 causes the iodine cap 2 in the rotating sleeve 45 to align with the conduit connector 5 in the front-back direction. The piston rod of cylinder I 42 gradually retracts, and the iodine cap 2 in the rotating sleeve 45 gradually moves towards the conduit connector 5. Motor II 44 drives the rotating sleeve 45 to rotate, and the rotating sleeve 45, through the clamping cylinder 46 on it, drives the iodine cap 2 to rotate synchronously. The iodine cap 2 is then screwed onto the conduit connector 5 via a push-type screwing mechanism.

[0046] The gauze block bending mechanism 8 includes a support plate 81, a folding and flipping plate 82, a left flipping plate 83, and a right flipping plate 84, as shown below. Figure 8 As shown. The rear half of the support plate 81 and the left and right sides of the front half are provided with recessed platforms 85, as shown. Figure 9As shown, the middle of the front half of the support plate 81 is higher than the rear half and the left and right sides of the front half. A folding and flipping plate 82 is mounted on the recessed platform 85 of the rear half of the support plate 81. A rotating shaft is fixedly mounted at the front end of the folding and flipping plate 82. A folding and flipping motor 86 is mounted on the middle left side of the support plate 81. The power output shaft of the folding and flipping motor 86 is fixedly connected to the rotating shaft on the folding and flipping plate 82. When the folding and flipping motor 86 rotates, it drives the rotating shaft on the folding and flipping plate 82 to rotate, thereby causing the folding and flipping plate 82 connected to the rotating shaft to fold and flip forward. A left flipping plate 83 is mounted on the recessed platform 85 on the left side of the front half of the support plate 81. A rotating shaft is fixedly mounted at the right end of the left flipping plate 83. A left flipping motor 87 is mounted on the front end of the support plate 81 near the left side. The power output shaft of the left flipping motor 87 is fixedly connected to the rotating shaft on the left flipping plate 83. When the left flipping motor 87 rotates, it drives the rotating shaft on the left flipping plate 83 to rotate, thereby causing the left flipping plate 83 connected to the rotating shaft to flip to the right. A right-flipping plate 84 is mounted on a recessed platform 85 on the right side of the front half of the support plate 81. A rotating shaft is fixedly mounted on the left end of the right-flipping plate 84. A right-flipping motor 88 is mounted on the front end of the support plate 81 near the right side. The power output shaft of the right-flipping motor 88 is fixedly connected to the rotating shaft on the right-flipping plate 84. When the right-flipping motor 88 rotates, it drives the rotating shaft on the right-flipping plate 84 to rotate, thereby causing the right-flipping plate 84 connected to the rotating shaft to flip to the left. A gauze block 7 is placed in the middle of the front half of the support plate 81, on the folded-over flipping plate 82, the left-flipping plate 83, and the right-flipping plate 84. A through groove I 901 is provided on the folded-over flipping plate 82 along the front-back direction, a through groove II 902 is provided on the left-left side along the left-right direction, and a through groove III 903 is provided on the right-right side along the left-right direction.When gauze pad 7 is placed on the middle of the front half of the support plate 81, on the folding and flipping plate 82, the left flipping plate 83, and the right flipping plate 84, with the venous end and arterial end of the catheter connector pressed against the front half of the gauze pad 7, the folding and flipping motor 86 drives the folding and flipping plate 82 to fold forward and flip, thereby driving the rear half of the gauze pad 7 to flip forward, so that the rear half of the gauze pad 7 covers the venous end and arterial end of the catheter connector. Medical tape 105 is then attached through the through groove I 901, connecting the rear half of the gauze pad 7 to the front half via the medical tape 105. Subsequently, the folding and flipping motor 86 reverses direction, the folding and flipping plate 82 flips backward and returns to the recessed platform 85 of the rear half of the support plate 81; the left flipping motor 87 drives the left flipping plate 83 to flip to the right, thereby driving the gauze pad 7... The left side flips to the right, so that the left side of the gauze block 7 covers the venous end and arterial end of the catheter connector. Medical tape 105 is attached through the through groove II 902, so that the left side of the flipped gauze block 7 is attached to the gauze block 7. Then, the left flipping motor 87 reverses, and the left flipping plate 83 flips to the left and returns to the recessed platform 85 on the left side of the support plate 81. The right flipping motor 88 drives the right flipping plate 84 to flip to the left, so that the right side of the gauze block 7 on it flips to the left, so that the right side of the gauze block 7 covers the venous end and arterial end of the catheter connector. Medical tape 105 is attached through the through groove III 903, so that the right side of the flipped gauze block 7 is attached to other parts of the gauze block 7. Then, the right flipping motor 88 reverses, and the right flipping plate 84 flips to the right and returns to the recessed platform 85 on the right side of the support plate 81.

[0047] The medical adhesive tape bonding mechanism 10 includes cylinder III 101, a left-right moving cylinder 1010, a rotary motor 102, cylinder IV 103, a medical adhesive tape storage box 104, medical adhesive tape 105, cylinder V 106, cylinder VI 107, and a medical adhesive tape cutting machine 108, such as... Figure 10As shown. Cylinder III 101 is fixedly connected to the vertical connecting column 18 via a connector. Cylinder III 101 is horizontally positioned above the catheter connector placement platform 31. The piston rod of cylinder III 101 extends towards the center of the sealing box 1. The left-right moving cylinder 1010 is fixedly mounted on the piston rod of cylinder III 101, and the piston rod of the left-right moving cylinder 1010 extends and retracts left and right. The rotary motor 102 is fixedly mounted on the piston rod of the left-right moving cylinder 1010. The power output shaft of the rotary motor 102 points vertically downward. Cylinder IV 103 is fixedly mounted on the power output shaft of the rotary motor 102. The piston rod of cylinder IV 103 points vertically downward. The top of the medical tape storage box 104 is fixed to cylinder IV 1010. At the bottom end of piston rod 3, the adhesive tape outlet of medical tape storage box 104 faces downwards, and medical tape 105 is rotatably placed inside medical tape storage box 104. The outer end of medical tape 105 is pulled out from the adhesive tape outlet of medical tape storage box 104. Cylinder V 106 is connected to the cylinder of cylinder IV 103 through connecting plate 109. The piston rod of cylinder V 106 is vertically downwards. Cylinder VI 107 is fixedly connected to the bottom end of piston rod of cylinder V 106. The piston rod of cylinder VI 107 extends horizontally below the adhesive tape outlet of medical tape storage box 104. Medical tape cutter 108 is installed on piston rod of cylinder VI 107. The cutting blade on medical tape cutter 108 corresponds to the medical tape 105 pulled out from the adhesive tape outlet of medical tape storage box 104. The structure of medical tape storage box 104 is as follows: Figure 11 and Figure 12As shown, the medical tape storage box 104 includes a circular bottom cover 1041, a positioning sleeve 1042, and a circular top cover 1043. The circular bottom cover 1041 and the circular top cover 1043 are interlocked. The positioning sleeve 1042 is installed in the middle of the circular bottom cover 1041. The medical tape 105 is fitted over the positioning sleeve 1042. The tape outlet is located at the bottom of the medical tape storage box 104. When the medical tape 105 is pulled outward from the tape outlet, the medical tape 105 can rotate around the positioning sleeve 1042. This medical tape storage box 104 is similar to a toilet paper roll box. The structure of this medical tape storage box 104 is existing technology and will not be described in detail. The medical tape cutting machine 108 can be a pneumatic shear or an automatic tape cutting machine, etc. The medical tape cutting machine 108 is existing technology and will not be described in detail. After the gauze block 7 is folded by the folding flip plate 82, the left flip plate 83, and the right flip plate 84, it needs to be fixed. The front and back positions of the medical tape storage box 104 and the medical tape cutter 108 are adjusted by extending and retracting the piston rod of the cylinder 101. The left and right positions of the medical tape storage box 104 and the medical tape cutter 108 are adjusted by extending and retracting the stop rod of the left and right moving cylinder 1010. The rotary motor 102 drives the cylinder IV 103 and the medical tape storage box 104, connecting plate 109, cylinder V 106, cylinder VI 107, and medical tape cutter 108 connected to the cylinder IV 103. The device is rotated so that the medical tape 105 in the tape outlet of the medical tape storage box 104 corresponds to the gauze block 7 under the through groove I 901 that needs to be bonded. Then, the cylinder 103 extends downward so that the medical tape 105 in the tape outlet is bonded to the gauze block 7. As the piston rod of the cylinder III 101 moves back and forth or left and right, the medical tape 105 below the tape outlet bonds the flipped gauze block 7 together, thereby achieving the purpose of the gauze block 7 wrapping the venous end and arterial end of the catheter connector.

[0048] The gauze storage mechanism 14 includes a cylindrical box 141, a rotating shaft 142, and a motor III 143, such as Figure 1 and Figure 2 As shown. A cylindrical box 141 is positioned above the support plate 81. A rotating shaft 142 passes through the cylindrical box 141 along its axis. The power output shaft of motor III 143 is fixedly connected to the rotating shaft 142. The axis of the rotating shaft 142 is parallel to the direction of movement of the support plate 81. Multiple partitions 144 are arranged circumferentially between the outer wall of the rotating shaft 142 and the inner wall of the cylindrical box 141, such as... Figure 13 As shown, a switch door 145 is provided on the wall of the cylindrical box 141 between two adjacent partitions 144. One side of the switch door 145 is hinged to the corresponding partition 144, and an iron block 146 is provided on the other side of the switch door 145. An electromagnet 147 is provided on the partition 144 corresponding to the other side of the switch door 145. Figure 14 As shown, when electromagnet 147 is energized, it attracts the corresponding iron block 146, and the corresponding switch door 145 closes. A gauze storage cavity 148 is formed between two adjacent partitions 144 and the corresponding switch doors 145 of the two adjacent partitions 144, and a gauze block 7 is placed in each gauze storage cavity 148. Motor III 143 is fixedly installed on the rear fixed support platform 201. Motor III 143 drives the sealing box 1 to rotate through the rotating shaft 142. When the switch door 145 on the sealing box 1 rotates to the lower position, the electromagnet 147 corresponding to one of the switch doors 145 rotates to the lower position is de-energized, and the switch door 145 opens. The gauze block 7 placed in the gauze storage cavity 148 corresponding to the switch door 145 slides into the middle of the front half of the corresponding support plate 81, the folding flip plate 82, the left flip plate 83, and the right flip plate 84.

[0049] The iodine cap ejection mechanism 15 includes a guide cylinder 151, a sealing slide plate 152, and a cylinder VII 153, such as Figure 15 As shown. The guide cylinder 151 is horizontally positioned above the conduit connector placement platform 31. The guide cylinder 151 is fixedly connected to the vertical connecting column 18 via a connector. The sealing slide plate 152 is positioned inside the guide cylinder 151 and slides and seals against the inner wall of the guide cylinder 151. The cylinder VII 153 is fixedly positioned on the front side inside the guide cylinder 151. The axis of the guide cylinder 151 is parallel to the axis of the semi-circular lower groove I 311. The piston rod of the cylinder VII 153 is fixedly connected to the sealing slide plate 152. Multiple iodine caps 2 are horizontally placed sequentially on the rear side inside the guide cylinder 151. In this embodiment, five iodine caps 2 are horizontally placed sequentially on the rear side inside the guide cylinder 151, and the opening of each iodine cap 2 faces forward. The piston rod of the cylinder VII 153 extends and pushes the sealing slide plate 152, causing the iodine caps 2 to move towards the rear outlet of the guide cylinder 151. When the rotating sleeve 45 in the iodine cap rotating mechanism 4 grabs the iodine cap 2 in the guide cylinder 151, the cylinder VII 153 pushes the last iodine cap 2 in the guide cylinder 151 out from the rear end of the guide cylinder 151. The position of the rotating sleeve 45 is adjusted by the motor I 41, cylinder I 42, cylinder II 43 and motor II 44 so that the rotating sleeve 45 is aligned with the pushed-out iodine cap 2. The piston rod of cylinder I 42 retracts, driving the rotating sleeve 45 to approach the pushed-out iodine cap 2. Then, the clamping cylinder 46 in the rotating sleeve 45 clamps the iodine cap 2, thus completing the grabbing of the iodine cap 2.

[0050] The disinfectant cotton sleeve 22 consists of two semi-circular disinfectant cotton sleeves, one side of which is rotatably and sealingly connected; the iodine cap 2 consists of two semi-circular iodine caps, such as... Figure 3 and Figure 4As shown, one side of the two semi-circular iodine caps is rotatably and sealed. The other side of the two semi-circular iodine caps is respectively provided with a groove 23 along the circumferential direction. An adhesive tape 24 is connected in the groove 23 of one semi-circular iodine cap, and a felt layer 25 is provided in the groove 23 of the other semi-circular iodine cap. When the free end of the adhesive tape 24 in the groove 23 of one semi-circular iodine cap overlaps the felt layer 25 in the corresponding groove 23 of the other semi-circular iodine cap, the other side of the two semi-circular iodine caps forms a sealed connection, and the other side of the two semi-circular disinfectant cotton sleeves also forms a sealed connection. When connecting the catheter connector 5 to the hemodialysis machine after removing the iodine cap 2 from the connector 5, first remove the gauze block 7 from the connector 5. Then, pull the other end of the adhesive tape 24 on one of the semi-circular iodine caps from the felt layer 25 on the other semi-circular iodine cap. This allows you to rotate both semi-circular iodine caps and two semi-circular sterile cotton sleeves outwards and remove the iodine cap 2 from the connector 5. Finally, connect the connector 5 to the dialysis machine. This avoids rotating the iodine cap 2 from the connector 5 and thus prevents contamination of the connector 5 from rotating it backwards.

[0051] The sealing mechanism 6 includes a sealing plate support 61, a sealing plate 62 for sealing the window 11, and a sealing plate drive cylinder 63 for driving the sealing plate 62 to seal or open the window 11. Figure 16 As shown. A sealing plate support platform 61 is installed on the front wall inside the sealing box 1. The top surface of the sealing plate support platform 61 is parallel to the bottom surface of the window 11 of the sealing box 1, and the top surface of the sealing plate support platform 61 is fixedly connected to the bottom of the conduit connector placement platform 31. A sliding groove 66 is provided on the sealing plate support platform 61, allowing the sealing plate 62 to slide up and down. The sliding groove 66 communicates vertically with the sealing groove 65. A sealing plate driving cylinder 63 is installed at the bottom of the sealing plate support platform 61. The piston rod of the sealing plate driving cylinder 63 extends vertically upward into the sliding groove 66. The sealing plate 62 is installed in the sliding groove 66, and the bottom of the sealing plate 62 is fixedly connected to the top of the piston rod of the sealing plate driving cylinder 63. After the piston rod of the sealing plate driving cylinder 63 extends upward, it drives the sealing plate 62 to slide from the sliding groove 66 into the sealing groove 65, closing the operating chamber 64 and achieving a sealed state throughout the sealing box 1. When the piston rod of the sealing plate drive cylinder 63 retracts downward, the drive sealing plate 62 slides from the sealing groove 65 into the slide groove 66, thereby opening the operating chamber 64.

[0052] The moving mechanism 9 includes a front support plate 91, a rear support plate 92, a left guide rail 93, a right guide rail 94, a lead screw 95, a moving plate 96, a motor Ⅳ 97, and a main cylinder 98, as shown below. Figure 1 , Figure 2 and Figure 17As shown. The front support plate 91 and the rear support plate 92 are both mounted on the base plate 12 of the sealing box 1, near the front and rear sides respectively. A left guide rail 93 and a right guide rail 94 are arranged on the base plate 12 between the front support plate 91 and the rear support plate 92. A moving plate 96 is placed between the left and right guide rails 93 and 94 and slides in cooperation with them. A lead screw 95 is positioned between the left and right guide rails 93 and 94 and is parallel to the left guide rail 93. A threaded hole is provided at the lower part of the moving plate 96, through which the lead screw 95 passes and slides in cooperation with the lead screw 95. The threaded hole on the movable plate 96 is threadedly engaged. The front end of the lead screw 95 is mounted on the front support plate 91 and rotates with it. The rear end of the lead screw 95 passes through the rear support plate 92 and rotates with it via a bearing. The motor IV 97 is mounted on the base plate 12 and located behind the rear support plate 92. The power output shaft of the motor IV 97 is connected to the rear end of the lead screw 95. The main cylinder 98 is fixedly mounted on the movable plate 96, with its piston rod pointing vertically upward. The support plate 81 is horizontally fixed to the top of the piston rod of the main cylinder 98. The motor IV 97 drives the lead screw 95 to rotate, which in turn moves the movable plate 96 back and forth. The piston rod of the main cylinder 98 extends and retracts to adjust the height of the support plate 81.

[0053] A positioning platform 89 is provided on the rear side of the support plate 81. The front end of the positioning platform 89 is fixedly connected to the rear end of the support plate 81. Cylinder VIII 891 and baffle 892 are provided on both the left and right sides of the positioning platform 89. Figure 1 and Figure 2 As shown, the piston rod of cylinder VIII 891 extends horizontally forward. Guide grooves 893 are provided on the left and right sides of the positioning platform 89 along the front-rear direction. A baffle 892 is provided within each of the guide grooves 893 on both sides. The baffles 892 slide in conjunction with the corresponding guide grooves 893 on the sidewalls of the positioning platform 89 in the front-rear direction. Figure 8 As shown, the rear end of the baffle 892 is fixedly connected to the piston rod of the cylinder VIII 891 on the corresponding side. When the piston rods of the cylinders VIII 891 on both sides extend, the baffles 892 on both sides extend outward to the left and right sides of the folding and flipping plate 82. When the gauze block 7 in the lowest gauze block storage cavity 148 inside the cylindrical box 141 slides into the middle of the front half of the support plate 81, the folding and flipping plate 82, the left flipping plate 83, and the right flipping plate 84 through the opening and closing door 145, the baffles 892 on both sides limit the sliding gauze block 7, so that the sliding gauze block 7 is precisely located on the surface of the middle of the front half of the support plate 81, the folding and flipping plate 82, the left flipping plate 83, and the right flipping plate 84.

[0054] The sealed box 1, guide tube 151, cylindrical box 141, partition 144 and opening / closing door 145 are all made of transparent plastic material. The automatic disinfection and sealing status of the central venous catheter connector inside the sealed box 1 can be viewed at any time through the transparent sealed box 1. The usage status of the iodine caps 2 inside the guide tube 151 can be viewed at any time through the transparent guide tube 151. The usage status of the gauze blocks 7 inside the gauze block storage cavity 148 can be viewed at any time through the transparent cylindrical box 141.

[0055] Before using the automatic disinfection and sealing device, the piston of the sealing plate drive cylinder 63 extends upward, driving the sealing plate 62 to slide upward into the sealing groove 65, closing the operating chamber 64, thereby making the sealing box 1 sealed. When using this automatic disinfection and sealing device, the sealing plate drive cylinder 63 drives the sealing plate 62 to retract into the slide groove 66, and the operating chamber 64 opens. The venous end and arterial end of the central venous catheter connector after hemodialysis are inserted into the semi-circular lower groove I 311 and semi-circular lower groove II 312 on the catheter connector placement platform 31. The piston rod of the lifting cylinder IX 17 extends downward, driving the iodine cap ejection mechanism 15, the medical tape bonding mechanism 10, the catheter connector pressure cylinder 19, and the pressing platform 32 on the vertical connecting column 18 to move downward together. The semi-circular upper groove I 321 and semi-circular upper groove II 322 under the pressing platform 32 press on the venous end and arterial end of the catheter connector, respectively. The piston rod of the catheter connector pressure cylinder 19 extends downward, driving the pressure plate 20 to press the venous end and arterial end of the catheter connector with the flexible pad below, fixing them on the catheter connector placement platform 31. The last iodine cap 2 inside the guide cylinder 151 is pushed out from the rear end of the guide cylinder 151 by cylinder VII 153. The position of the rotating sleeve 45 is adjusted by motor I 41, cylinder I 42, cylinder II 43, and motor II 44, and the clamping cylinder 46 inside the rotating sleeve 45 clamps the iodine cap 2, thus completing the grasping of the iodine cap 2. The position of the rotating sleeve 45 is then adjusted by motor I 41, cylinder I 42, cylinder II 43, and motor II 44 so that it aligns with the conduit connector 5 on the conduit connector placement platform 31. Motor II 44 rotates, driving the rotating sleeve 45 and the clamping cylinder 46 to hold the cap 2. The iodine cap 2 rotates together. Under the coordinated action of cylinder I 42 and motor II 44, the iodine cap 2 is pushed and screwed onto the venous end of the catheter connector, realizing automatic disinfection and sealing of the venous end of the catheter connector. The clamping cylinder 46 is released. The same operation is performed on the arterial end of the catheter connector in the same way. After the iodine cap 2 is on both the venous end and the arterial end of the catheter connector, the piston rod of cylinder II 43 retracts, driving motor II 44 and rotating sleeve 45 to move upward. Then, motor I 41 drives the other parts of the iodine cap screwing mechanism 4 to rotate together and deviate from the front and back position of the catheter connector 5. Motor III 143 rotates, and at the same time, cylinder VIII 891 drives baffle 892 to extend forward and rotate to the gauze block 7 placed in the gauze block storage cavity 148 corresponding to one of the lower switch doors 145. The gauze block 7 slides into the middle of the front half of the corresponding support plate 81, the folding flip plate 82, the left flip plate 83, and the right flip plate 84. Motor IV 97 drives screw 95 to rotate, driving moving plate 96, main cylinder 98, and gauze block bending mechanism 8 on it to move forward together. When it moves to the rear half of the guide tube connector 5, moving mechanism 9 stops.The piston rod of the main cylinder 98 moves upward, causing the gauze pad 7 on the middle part of the front half of the support plate 81, the folding and flipping plate 82, the left flipping plate 83, and the right flipping plate 84 to press under the venous end and arterial end of the catheter connector. The folding and flipping motor 86 drives the folding and flipping plate 82 to fold and flip forward, driving the rear half of the gauze pad 7 on it to flip forward, thereby covering the venous end and arterial end of the catheter connector with the rear half of the gauze pad 7. With the cooperation of cylinder III 101, the left and right moving cylinder 1010, the rotary motor 102, and cylinder IV 103, the medical adhesive... The medical tape storage box 104 moves down and aligns with the through groove I 901. The medical tape 105 extending from the tape outlet of the medical tape storage box 104 moves from back to front along the through groove I 901, so that the medical tape 105 adheres the folded part of the gauze block 7 to the unfolded part at the bottom. The piston rod of cylinder V 106 extends downward and the piston rod of cylinder VI 107 extends backward, driving the medical tape cutter 108 to cut the medical tape 105. Then, cylinders V 106 and VI 107 drive the medical tape cutter 108 to return to its original position. The left flip motor 87 drives the left flip plate 83. The gauze pad 7 is flipped to the right, causing its left side to flip to the right as well. This allows the left side of the gauze pad 7 to cover the venous and arterial ends of the catheter connector. Then, with the cooperation of cylinder III 101, left and right moving cylinder 1010, rotary motor 102, and cylinder IV 103, the medical tape 105 extending from the tape outlet of the medical tape storage box 104 moves from left to right along the through groove II 902. This allows the medical tape 105 to adhere the flipped left side of the gauze pad 7 to other parts of the gauze pad 7. Finally, the medical tape 105 is cut by the medical tape cutter 108. The right-flipping motor 88 drives the right-flipping plate 84 to flip to the left, so that the right side of the gauze block 7 covers the venous end and arterial end of the catheter connector. With the cooperation of cylinder III 101, left and right moving cylinder 1010, rotary motor 102 and cylinder IV 103, the medical tape 105 extending from the tape outlet of the medical tape storage box 104 moves from right to left along the through groove III 903, so that the medical tape 105 sticks the flipped right side of the gauze block 7 to other positions of the gauze block 7, thereby completing the wrapping of the venous end and arterial end of the catheter connector by the gauze block 7.After the catheter connector 5 is wrapped, cylinders V106 and VI107 drive the medical tape cutter 108 to move upward, the piston rod of cylinder IV103 retracts, the moving mechanism 9 drives the gauze block bending mechanism 8 to move backward and retract, the piston rod of the catheter connector pressure cylinder 19 retracts upward, the piston rod of the lifting cylinder IX17 retracts, and drives the iodine cap ejection mechanism 15, the medical tape bonding mechanism 10, the catheter connector pressure cylinder 19 and the pressing table 32 on the vertical connecting column 18 to move upward together. The semi-circular upper groove I 321 and semi-circular upper groove II 322 under the pressing table 32 disengage from the venous end and arterial end of the catheter connector. Medical personnel take out the sterilized and sealed catheter connector 5, the piston rod of the sealing plate driving cylinder 63 extends upward, drives the sealing plate 62 to move upward into the sealing groove 65 and closes the operating chamber 64. At this point, the central venous catheter connector of the hemodialysis machine is automatically disinfected and sealed. The entire process does not require manual disinfection by medical staff, manual rotation of the iodine cap 2, manual wrapping of the catheter connector 5, or manual bonding. This reduces the workload of medical staff, avoids contamination caused by manual operation, and also reduces the time that the catheter connector 5 is exposed to the outside world, thereby greatly reducing the chance of contamination of the catheter connector 5.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automatic disinfection and sealing device for the central venous catheter connector during hemodialysis, characterized in that: It includes a sealed box (1) and an iodine cap (2), a conduit connector support mechanism (3) and an iodine cap screwing mechanism (4) installed inside the sealed box (1); The inner wall of the iodine cap (2) is composed of a diameter segment I near the inner side, a diameter segment II near the outer side, and an annular step formed between diameter segment I and diameter segment II. The diameter of diameter segment I is smaller than the diameter of diameter segment II. The inner wall of the iodine cap (2) located on diameter segment I is provided with an internal thread (21) that mates with the external thread on the conduit connector (5). The inner wall of the iodine cap (2) located on diameter segment II is provided with a sterile cotton sleeve (22). The outer wall of the sterile cotton sleeve (22) is tightly fitted with the inner wall of diameter segment II of the iodine cap (2). The inner end of the sterile cotton sleeve (22) presses against the annular step inside the iodine cap (2). The front wall of the sealed box (1) is provided with a window (11) for placing or removing the catheter connector (5); the catheter connector support mechanism (3) includes a catheter connector placement platform (31) and a clamping platform (32). The catheter connector placement platform (31) is located on the front wall of the sealed box (1) and close to the window (11). The sealed box (1) is also provided with a sealing mechanism (6) for sealing the window (11) close to the front wall; the catheter connector placement platform (31) is provided with a semi-circular lower groove I (311) for placing the venous end of the catheter connector and The semi-circular lower groove II (312) for placing the arterial end of the catheter connector; the clamping platform (32) is arranged directly above the catheter connector placement platform (31) in a vertically movable manner. The bottom of the clamping platform (32) is provided with a semi-circular upper groove I (321) for clamping the venous end of the catheter connector and a semi-circular upper groove II (322) for clamping the arterial end of the catheter connector. The semi-circular upper groove I (321) and the semi-circular lower groove I (311) are vertically corresponding, and the semi-circular upper groove II (322) and the semi-circular lower groove II (312) are vertically corresponding. It also includes a gauze block (7) set in the sealed box (1), a gauze block bending mechanism (8), and a moving mechanism (9) that drives the gauze block bending mechanism (8) to move horizontally closer to or away from the catheter connector placement platform (31); the gauze block bending mechanism (8) includes a support plate (81), a folding and flipping plate (82), a left flipping plate (83), and a right flipping plate (84); the rear half of the support plate (81) and the left and right sides of the front half are provided with recessed platforms (85), the folding and flipping plate (82) is set on the recessed platform (85) of the rear half of the support plate (81) and is driven to fold and flip forward by the folding and flipping motor (86), the left flipping plate (83) is set on the recessed platform (85) on the left side of the front half of the support plate (81), and the left flipping plate (83) is driven by the left flipping motor (87). The drive flips to the right, and the right flip plate (84) is set on the recessed platform (85) on the right side of the front half of the support plate (81). The right flip plate (84) is driven to flip to the left by the right flip motor (88). The gauze block (7) is placed on the middle of the front half of the support plate (81), the folded flip plate (82), the left flip plate (83) and the right flip plate (84). The folded flip plate (82) is provided with a through groove I (901) that penetrates the rear side, the left flip plate (83) is provided with a through groove II (902) that penetrates the left side, and the right flip plate (84) is provided with a through groove III (903) that penetrates the right side.

2. The automatic disinfection and sealing device for the central venous catheter connector during hemodialysis as described in claim 1, characterized in that: The iodine cap screwing mechanism (4) includes a motor I (41), a cylinder I (42), a cylinder II (43), a motor II (44), a rotating sleeve (45), and a clamping cylinder (46); the motor I (41) is fixedly installed inside the sealed box (1) and close to the front side wall; the cylinder I (42) is fixedly installed on the power output shaft of the motor I (41); the piston rod of the cylinder I (42) extends horizontally towards the middle of the sealed box (1); the cylinder II (43) is fixedly installed on the end of the piston rod of the cylinder I (42); the cylinder II... (43) The piston rod is downward, the motor II (44) is fixedly installed at the bottom of the piston rod of the cylinder II (43), the power output shaft of the motor II (44) is horizontally set, the rotating sleeve (45) is fixedly installed on the power output shaft of the motor II (44), the sleeve opening of the rotating sleeve (45) faces the side of the conduit connector placement platform (31), and multiple clamping cylinders (46) are evenly distributed in the circumferential direction near the center hole inside the rotating sleeve (45), and the piston rod of the clamping cylinder (46) points to the center hole of the rotating sleeve (45).

3. The automatic disinfection and sealing device for the central venous catheter connector during hemodialysis as described in claim 2, characterized in that: It also includes a medical tape bonding mechanism (10) installed in a sealed box (1), the medical tape bonding mechanism (10) including cylinder III (101), left and right moving cylinder (1010), rotary motor (102), cylinder IV (103), medical tape storage box (104), medical tape (105), cylinder V (106), cylinder VI (107) and medical tape cutter (108); the cylinder III (101) is horizontally installed in the catheter connection Above the head placement platform (31), the piston rod of the cylinder III (101) extends toward the middle of the sealing box (1), the left and right moving cylinder (1010) is fixedly mounted on the piston rod of the cylinder III (101), the piston rod of the left and right moving cylinder (1010) extends and retracts left and right, the rotary motor (102) is fixedly mounted on the piston rod of the left and right moving cylinder (1010), the power output shaft of the rotary motor (102) is vertically downward, the cylinder IV ( 103) Fixedly mounted on the power output shaft of the rotary motor (102), the piston rod of the cylinder IV (103) is vertically downward, the top of the medical tape storage box (104) is fixed on the bottom end of the piston rod of the cylinder IV (103), and the tape outlet of the medical tape storage box (104) faces downward; the cylinder V (106) is connected to the cylinder barrel of the cylinder IV (103) through the connecting plate (109), and the piston rod of the cylinder V (106) is vertical. Downward, cylinder VI (107) is fixedly connected to the bottom end of the piston rod of cylinder V (106). The piston rod of cylinder VI (107) extends horizontally below the adhesive tape outlet of the medical adhesive tape storage box (104). The medical adhesive tape cutter (108) is installed on the piston rod of cylinder VI (107). The cutting blade on the medical adhesive tape cutter (108) corresponds to the medical adhesive tape (105) pulled out from the adhesive tape outlet of the medical adhesive tape storage box (104).

4. The automatic disinfection and sealing device for the central venous catheter connector during hemodialysis as described in claim 3, characterized in that: It also includes a gauze block storage mechanism (14) set inside the sealed box (1). The gauze block storage mechanism (14) includes a cylindrical box (141), a rotating shaft (142), and a motor III (143). The cylindrical box (141) is set above the support plate (81). The rotating shaft (142) passes through the cylindrical box (141) along the axis of the cylindrical box (141). The power output shaft of the motor III (143) is fixedly connected to the rotating shaft (142). The axis of the rotating shaft (142) is parallel to the moving direction of the support plate (81). Multiple partitions (144) are set in the circumferential direction between the outer wall of the rotating shaft (142) and the inner wall of the cylindrical box (141). Between two adjacent partitions (144) A switch door (145) is provided on the wall of the corresponding cylindrical box (141). One side of the switch door (145) is hinged to the corresponding partition (144). An iron block (146) is provided on the other side of the switch door (145). An electromagnet (147) is provided on the partition (144) corresponding to the other side of the switch door (145). A gauze storage cavity (148) is formed between two adjacent partitions (144) and the switch doors (145) corresponding to two adjacent partitions (144). A gauze block storage cavity (7) is placed in each gauze block storage cavity (148). The motor III (143) drives the sealed box (1) to rotate through the rotating shaft (142). The switch door (145) on the sealed box (1) When rotated to the bottom, the electromagnet (147) corresponding to one of the bottom switch doors (145) is de-energized, and the switch door (145) is opened. The gauze block (7) placed in the gauze block storage cavity (148) corresponding to the switch door (145) slides into the middle of the front half of the corresponding support plate (81), the folding flip plate (82), the left flip plate (83), and the right flip plate (84).

5. The automatic disinfection and sealing device for the central venous catheter connector during hemodialysis as described in claim 4, characterized in that: It also includes an iodine cap ejection mechanism (15) disposed in the sealed box (1). The iodine cap ejection mechanism (15) includes a guide cylinder (151), a sealing slide plate (152), and a cylinder VII (153). The guide cylinder (151) is horizontally disposed above the conduit connector placement platform (31). The sealing slide plate (152) is disposed inside the guide cylinder (151) and slides and seals against the inner wall of the guide cylinder (151). The cylinder VII (153) is fixedly disposed. On the front side inside the guide cylinder (151), the axis of the guide cylinder (151) is parallel to the axis of the semi-circular lower groove I (311). The piston rod of the cylinder VII (153) is fixedly connected to the sealing slide plate (152). Multiple iodine caps (2) are horizontally placed in sequence on the rear side inside the guide cylinder (151). The piston rod of the cylinder VII (153) extends out and pushes the sealing slide plate (152) to drive the iodine caps (2) to move towards the rear outlet of the guide cylinder (151).

6. The automatic disinfection and sealing device for the central venous catheter connector during hemodialysis as described in claim 5, characterized in that: The disinfectant cotton sleeve (22) is composed of two semi-circular disinfectant cotton sleeves, and one side of the two semi-circular disinfectant cotton sleeves is rotatably and sealed. The iodine cap (2) is composed of two semi-circular iodine caps, and one side of the two semi-circular iodine caps is rotatably and sealed. The other side of the two semi-circular iodine caps is respectively provided with a groove (23) along the circumferential direction. An adhesive tape (24) is connected in the groove (23) of one semi-circular iodine cap, and a felt layer (25) is provided in the groove (23) of the other semi-circular iodine cap. When the free end of the adhesive tape (24) of the groove (23) of one semi-circular iodine cap overlaps the felt layer (25) in the corresponding groove (23) of the other semi-circular iodine cap, the other side of the two semi-circular iodine caps forms a sealed connection, and the other side of the two semi-circular disinfectant cotton sleeves also forms a sealed connection.

7. The automatic disinfection and sealing device for the central venous catheter connector during hemodialysis as described in claim 6, characterized in that: The sealing mechanism (6) includes a sealing plate support platform (61), a sealing plate (62) for sealing the window (11), and a sealing plate drive cylinder (63) for driving the sealing plate (62) to seal or open the window (11). The sealing plate support platform (61) is set on the front side wall inside the sealing box (1), and the top surface of the sealing plate support platform (61) is parallel to the bottom surface of the window (11) of the sealing box (1). The front end of the conduit connector placement platform (31) is installed in the window (11) of the sealing box (1). The conduit connector placement platform (31) is provided near the front side with a semi-circular lower groove I (311) and a semi-circular lower recess for placing the conduit connector (5). The operating chamber (64) on the groove II (312) has a sealing groove (65) around its perimeter for inserting the sealing plate (62). The sealing plate support platform (61) has a sliding groove (66) for sliding the sealing plate (62) up and down. The sliding groove (66) and the sealing groove (65) are connected in the vertical direction. The sealing plate driving cylinder (63) is located at the bottom of the sealing plate support platform (61). The piston rod of the sealing plate driving cylinder (63) is vertically upward. The sealing plate (62) is located in the sliding groove (66). The bottom of the sealing plate (62) is fixedly connected to the top of the piston rod of the sealing plate driving cylinder (63).

8. The automatic disinfection and sealing device for the central venous catheter connector during hemodialysis according to any one of claims 5 to 7, characterized in that: The moving mechanism (9) includes a front support plate (91), a rear support plate (92), a left guide rail (93), a right guide rail (94), a lead screw (95), a moving plate (96), a motor (97), and a main cylinder (98). The front support plate (91) and the rear support plate (92) are both mounted on the bottom plate (12) of the sealed box (1) and are located near the front and rear sides, respectively. The left guide rail (93) and the right guide rail (94) are arranged on the bottom plate (12) between the front support plate (91) and the rear support plate (92). The moving plate (96) is placed between the left guide rail (93) and the right guide rail (94) and slides in cooperation with the left guide rail (93) and the right guide rail (94). The lead screw (95) is arranged between the left guide rail (93) and the right guide rail (94). The screw (95) passes through the moving plate (96) and is threaded with the moving plate (96). The front end of the screw (95) is mounted on the front support plate (91) and rotates with the front support plate (91). The rear end of the screw (95) passes through the rear support plate (92) and rotates with the rear support plate (92). The motor IV (97) is mounted on the base plate (12) and located behind the rear support plate (92). The power output shaft of the motor IV (97) is connected to the rear end of the screw (95). The main cylinder (98) is fixedly mounted on the moving plate (96). The piston rod of the main cylinder (98) is vertically upward. The support plate (81) is horizontally fixed on the top of the piston rod of the main cylinder (98).

9. The automatic disinfection and sealing device for the central venous catheter connector during hemodialysis as described in claim 8, characterized in that: A positioning platform (89) is provided on the rear side of the support plate (81). The front end of the positioning platform (89) is fixedly connected to the rear end of the support plate (81). A cylinder VIII (891) and a baffle (892) are provided on the left and right sides of the positioning platform (89). The piston rod of the cylinder VIII (891) extends horizontally forward. The baffle (892) slides in the front-back direction with the side wall of the positioning platform (89). The rear end of the baffle (892) is fixedly connected to the piston rod of the cylinder VIII (891) on the corresponding side. When the piston rods of the cylinders VIII (891) on the left and right sides are extended, the baffles (892) on the left and right sides extend outward to the left and right sides of the folding and flipping plate (82).

10. The automatic disinfection and sealing device for the central venous catheter connector during hemodialysis according to claim 9, characterized in that: It also includes a front fixed support platform (16), a lifting cylinder IX (17), a vertical connecting column (18), a conduit joint pressure cylinder (19), and a pressure plate (20) disposed in the sealed box (1); the front fixed support platform (16) is fixedly disposed on the front side wall of the sealed box (1), the motor I (41) is fixedly installed on the front fixed support platform (16), the lifting cylinder IX (17) is fixedly connected to the bottom of the front fixed support platform (16), the piston rod of the lifting cylinder IX (17) is vertically downward, and the vertical connecting column (18) is vertically connected to the lifting cylinder IX (17). At the bottom end of the piston rod, the guide cylinder (151), the pressing table (32) and the cylinder III (101) are all fixedly connected to the vertical connecting column (18) by connecting parts. The conduit joint pressure cylinder (19) is fixedly connected to the bottom end of the vertical connecting column (18). The piston rod of the conduit joint pressure cylinder (19) is vertically downward. The pressure plate (20) is fixedly connected to the bottom end of the piston rod of the conduit joint pressure cylinder (19). The bottom of the pressure plate (20) is an arc-shaped plate that matches the outer wall of the conduit joint (5). A flexible pad is provided at the bottom of the pressure plate (20).

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