Automatic disinfecting and sealing device for hemodialysis lower machine central venous catheter connector

Abstract

The invention provides an automatic disinfecting and sealing device for a hemodialysis lower machine central venous catheter connector. The automatic disinfecting and sealing device comprises a sealing box, an iodophor cap, a catheter connector supporting mechanism and an iodophor cap rotary sleeving mechanism, wherein the iodophor cap, the catheter connector supporting mechanism and the iodophor cap rotary sleeving mechanism are arranged in the sealing box; the inner wall, located on the diameter section I, of the iodophor cap is provided with internal threads matched with the external threads on the catheter connector, and the inner wall, located on the diameter section II, of the iodophor cap is provided with a disinfection cotton sleeve. Medical staff only need to place the catheter connector in the sealing box, the catheter connector can be automatically disinfected and sealed, and the steps of manual disinfection, manual screwing of an iodophor cap, manual wrapping of the catheter connector, manual bonding and the like of the medical staff are not needed in the whole process, so that the workload of the medical staff is reduced, and the working efficiency is improved. Meanwhile, the time that the catheter connector is exposed to the outside is shortened, and therefore the probability that the catheter connector is polluted is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of hemodialysis, and in particular to an automatic disinfection and sealing device for a central venous catheter connector of a hemodialysis machine. Background Art

[0002] After the hemodialysis machine is removed, the central venous catheter connector needs to be disinfected and wrapped for care. When caring for the central venous catheter connector after it is removed from the machine, medical staff need to prepare items in the catheter care package, such as square trays, sterile gloves, sterile treatment towels, disinfectants, 0.5% iodine-containing gauze, iodine-containing caps, etc. After the central venous catheter connector is disconnected from the pipeline on the hemodialysis machine, the medical staff put on sterile gloves, lay sterile treatment towels under the central venous catheter connector, wipe the catheter connector with disinfectant, wipe repeatedly for 15 seconds, then screw the iodine-containing cap on the catheter connector, and then wipe and disinfect it with 0.5% iodine-containing gauze. Finally, wrap the central venous catheter connector with sterile gauze, and bond it with medical tape after wrapping to prevent the sterile gauze from falling off.

[0003] The above-mentioned whole process is completed at the dialysis clinic site, and the whole operation is completely exposed to the air. Although the medical staff wear sterile gloves, they will inevitably come into contact with other objects during the operation. Once they come into contact with other objects, it is easy to cause contamination to the central venous catheter connector. Moreover, the whole operation is in an exposed state, which is also easy to cause drug contamination. Moreover, when wrapping the central venous catheter connector, the hospital staff wraps it in different forms, and the form and position of the medical tape are also different, which cannot be regular and uniform. There is also a phenomenon that the sterile gauze falls off the central venous catheter connector after wrapping, and some central venous catheter connectors that are not completely wrapped are also in contact with the outside world. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides an automatic disinfection and sealing device for the central venous catheter connector of a hemodialysis machine with reduced contamination.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] An automatic disinfection and sealing device for a central venous catheter connector of a hemodialysis machine includes a sealing box, an iodine-containing cap arranged in the sealing box, a catheter connector supporting mechanism, and an iodine-containing cap screwing mechanism;

[0007] The inner wall of the iodine tin cap is composed of a diameter section I close to the inside, a diameter section II close to the outside, and a circular step formed between the diameter section I and the diameter section II. The diameter of the diameter section I is smaller than the diameter of the diameter section II. The inner wall of the iodine tin cap located at the diameter section I is provided with an internal thread that matches the external thread on the catheter connector. The inner wall of the iodine tin cap located at the diameter section II is provided with a sterilizing cotton sleeve. The outer wall of the sterilizing cotton sleeve is tightly fitted with the inner wall of the diameter section II of the iodine tin cap, and the inner end of the sterilizing cotton sleeve is against the circular step in the iodine tin cap.

[0008] A window for placing or taking a catheter joint is arranged on the front side wall of the sealing box; the catheter joint supporting mechanism comprises a catheter joint placing platform and a pressing platform, the catheter joint placing platform is arranged on the front side wall of the sealing box and close to the window, and a sealing mechanism for sealing the window is also arranged in the sealing box close to the front side wall; a semicircular lower groove I for placing the venous end of the catheter joint and a semicircular lower groove II for placing the arterial end of the catheter joint are arranged on the catheter joint placing platform; the pressing platform is arranged directly above the catheter joint placing platform in a manner that it can move up and down, and a semicircular upper groove I for pressing the venous end of the catheter joint and a semicircular upper groove II for pressing the arterial end of the catheter joint are arranged at the bottom of the pressing platform, the semicircular upper groove I and the semicircular lower groove I correspond to each other up and down, and the semicircular upper groove II and the semicircular lower groove II correspond to each other up and down;

[0009] The iodine cap rotating sleeve mechanism comprises a motor I, a cylinder I, a cylinder II, a motor II, a rotating sleeve and a clamping cylinder; the motor I is fixedly installed in a sealed box and close to the front side wall, the cylinder I is fixedly installed on the power output shaft of the motor I, the piston rod of the cylinder I horizontally extends to the middle of the sealed box, the cylinder II is fixedly installed on the end of the piston rod of the cylinder I, the piston rod of the cylinder II is downward, the motor II is fixedly installed on the bottom of the piston rod of the cylinder II, the power output shaft of the motor II is horizontally arranged, the rotating sleeve is fixedly installed on the power output shaft of the motor II, the sleeve opening of the rotating sleeve faces one side of the catheter joint placement table, a plurality of clamping cylinders are evenly arranged in the circumferential direction on one side of the rotating sleeve close to the center hole, and the piston rod of the clamping cylinder points to 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 of the hemodialysis machine also includes a gauze block arranged in a sealing box, a gauze block bending mechanism and a moving mechanism that drives the gauze block bending mechanism to horizontally approach or move away from the catheter connector placement table; the gauze block bending mechanism includes a support plate, a folding and flipping plate, a left flipping plate and a right flipping plate; a concave platform is arranged on the rear half of the support plate and on the left and right sides of the front half, the folding and flipping plate is arranged on the concave platform of the rear half of the support plate and is driven by a folding and flipping motor to fold and flip forward The left flip plate is arranged on a concave platform on the left side of the front half of the support plate, and the left flip plate is driven by a left flip motor to flip to the right, and the right flip plate is arranged on a concave platform on the right side of the front half of the support plate, and the right flip plate is driven by a right flip motor to flip to the left side; the gauze block is placed on the middle part of the front half of the support plate, the folded flip plate, the left flip plate and the right flip plate; a through groove I penetrating the rear side is arranged on the folded flip plate, a through groove II penetrating the left side is arranged on the left flip plate, and a through groove III penetrating the right side is arranged on the right flip plate.

[0011] As a preferred embodiment of the present invention, the automatic disinfection and sealing device for the central venous catheter connector of the hemodialysis machine also includes a medical tape bonding mechanism arranged in a sealing box, and the medical tape bonding mechanism includes a cylinder III, a left-right movable cylinder, a rotating motor, a cylinder IV, a medical tape storage box, medical tape, a cylinder V, a cylinder VI and a medical tape shearing machine; the cylinder III is horizontally arranged above the catheter connector placement table, the piston rod of the cylinder III extends to the middle of the sealing box, the left-right movable cylinder is fixedly arranged on the piston rod of the cylinder III, the piston rod of the left-right movable cylinder is telescopic, the rotating motor is fixedly arranged on the piston rod of the left-right movable cylinder, and the rotating motor is fixedly arranged on the piston rod of the left-right movable cylinder, The power output shaft of the rotating motor is vertically downward, the cylinder IV is fixedly arranged on the power output shaft of the rotating motor, the piston rod of the cylinder IV is vertically downward, the top of the medical tape storage box is fixed on the bottom end of the piston rod of the cylinder IV, and the tape outlet of the medical tape storage box faces downward; the cylinder V is connected to the cylinder barrel of the cylinder IV through a connecting plate, the piston rod of the cylinder V is vertically downward, the cylinder VI is fixedly connected to the bottom end of the piston rod of the cylinder V, the piston rod of the cylinder VI extends horizontally to below the tape outlet of the medical tape storage box, the medical tape shearing machine is installed on the piston rod of the cylinder VI, and the shearing blade on the medical tape shearing machine 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 of the hemodialysis machine also includes a gauze block storage mechanism arranged in a sealed box, the gauze block storage mechanism includes a cylindrical box, a rotating shaft and a motor III, the cylindrical box is arranged above the support plate, the rotating shaft passes through the cylindrical box along the axis of the cylindrical box, 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 moving direction of the support plate; a plurality of partitions are arranged in the circumferential direction between the outer wall of the rotating shaft and the inner wall of the cylindrical box, and a switch door is arranged on the box wall of the cylindrical box corresponding to two adjacent partitions, and one side of the switch door It is hinged on the corresponding partition, and an iron block is arranged on the other side of the switch door, and an electromagnet is arranged on the partition corresponding to the other side of the switch door; a gauze block storage cavity is formed between two adjacent partitions and the switch doors corresponding to the two adjacent partitions, and a gauze block is placed in each gauze block storage cavity; the motor III drives the sealing box to rotate through the rotating shaft, and when the switch door on the sealing box rotates to the bottom, the electromagnet corresponding to one of the switch doors that rotates to the bottom is powered off and the switch door is opened, and the gauze block placed in the gauze block storage cavity corresponding to the switch door slides into the middle of the front half of the corresponding support plate below, the folding flip plate, the left flip plate and the right flip plate.

[0013] As a preferred embodiment of the present invention, the automatic disinfection and sealing device for the central venous catheter connector of the hemodialysis machine also includes an iodine cap pushing mechanism arranged in a sealing box, the iodine cap pushing mechanism includes a guide cylinder, a sealing slide and a cylinder VII, the guide cylinder is horizontally arranged above the catheter connector placement table, the sealing slide is arranged in the guide cylinder and slides and seals with the inner wall of the guide cylinder, the cylinder VII is fixedly arranged on the front side of the guide cylinder, the axis of the guide cylinder is parallel to the axis of the semicircular lower groove I, the piston rod of the cylinder VII is fixedly connected to the sealing slide, a plurality of iodine caps are horizontally placed in sequence on the rear side of the guide cylinder, the piston rod of the cylinder VII extends to push the sealing slide to drive the iodine cap to move toward the rear outlet of the guide cylinder.

[0014] As a preferred embodiment of the present invention, the disinfection cotton sleeve is composed of two semicircular disinfection cotton sleeves, one side of the two semicircular disinfection cotton sleeves can be rotatably sealed and connected; the iodine cap is composed of two semicircular iodine caps, one side of the two semicircular iodine caps can be rotatably sealed and connected, and the other sides of the two semicircular iodine caps are respectively provided with grooves along the circumferential direction, wherein an adhesive tape is connected in the groove of one semicircular iodine cap, and a felt layer is arranged in the groove of the other semicircular iodine cap; when the free end of the adhesive tape of the groove of one semicircular iodine cap is overlapped on the felt layer in the corresponding groove of the other semicircular iodine cap, the other sides of the two semicircular iodine caps form a sealed butt joint, and the other sides of the two semicircular disinfection cotton sleeves also form a closed butt joint.

[0015] As a preferred solution 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 arranged on the front side wall in 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 catheter joint placement platform is installed in the window of the sealing box, and the catheter joint placement platform is provided with an operating cavity near the front side for placing the catheter joint into the semicircular lower groove I and the semicircular lower groove II, and the operating cavity is surrounded by sealing grooves for inserting the sealing plate, and the sealing plate support platform is provided with a slide groove for the sealing plate to slide up and down, and the slide groove is connected with the sealing groove in the vertical direction, the sealing plate driving cylinder is arranged 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 arranged in the slide groove, and the bottom of the sealing plate is fixedly connected to the top end of the piston rod of the sealing plate driving cylinder.

[0016] As a preferred solution 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 screw rod, a moving plate, a motor IV and a main cylinder; the front support plate and the rear support plate are both mounted on the bottom plate of the sealed box and are respectively close to the front side and close to the rear side, a left guide rail and a right guide rail are arranged on the bottom plate and between the front support plate and the rear support plate, the moving plate is placed between the left guide rail and the right guide rail and is slidably matched with the left guide rail and the right guide rail, the screw rod is arranged between the left guide rail and the right guide rail and is parallel to the left guide rail, the screw rod passes through the moving plate and is threadedly matched with the moving plate, the front end of the screw rod is mounted on the front support plate and is rotatably matched with the front support plate, the rear end of the screw rod passes through the rear support plate and is rotatably matched with the rear support plate, the motor IV is mounted on the bottom plate and is located behind the rear support plate, and the power output shaft of the motor IV is connected to the rear end of the screw rod; the main cylinder is fixedly mounted on the moving plate, the piston rod of the main cylinder is vertically upward, and the support plate is horizontally fixed on the top end of the piston rod of the main cylinder.

[0017] As a preferred solution 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, and cylinder VIII and baffles are provided on the left and right sides of the positioning platform. The piston rod of the cylinder VIII extends horizontally to the front, and the baffle slides with the side wall of the positioning platform in the front and rear directions. The rear end of the baffle is fixedly connected to the piston rod of the cylinder VIII on the corresponding side. When the piston rods of the cylinder VIII on the left and right sides are extended, the baffles on the left and right sides extend to the left and right sides of the folded flip plate.

[0018] As a preferred embodiment of the present invention, the automatic disinfection and sealing device for the central venous catheter connector of the hemodialysis machine also includes a front fixed support platform, a lifting cylinder IX, a vertical connecting column, a catheter connector pressure cylinder and a pressure plate arranged in a sealing box; the front fixed support platform is fixedly arranged on the front side wall of the sealing 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 clamping platform and the cylinder III are all fixedly connected to the vertical connecting column through a connecting piece, 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 arranged at the bottom of the pressure plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

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

[0021] 2. An internal thread and a sterilizing cotton sleeve are arranged inside the iodine cap. When in use, the iodine cap is put on the catheter connector through the iodine cap rotating mechanism. The catheter connector is sterilized by push-type during the process of plugging the sterilizing cotton sleeve on the iodine cap on the catheter connector. Then, the iodine cap is driven to rotate by motor II so that the internal thread inside the iodine cap is screwed onto the external thread on the catheter connector by push-type rotation, thereby achieving aseptic docking between the iodine cap and the catheter connector. The iodine cap is put on the catheter connector by push-type rotation, which not only disinfects the front end of the catheter connector, but also makes the front end of the catheter connector be covered in the iodine cap, thereby preventing the catheter connector from being contaminated during disinfection and wearing the iodine cap.

[0022] 3. The present invention is provided with a gauze block bending mechanism, which realizes automatic wrapping of the catheter joint with the gauze block by folding the flip plate, the left flip plate and the right flip plate, thereby reducing the irregular and inconsistent manual operation and avoiding the risk of contamination caused by manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of an automatic disinfection and sealing device for a central venous catheter connector under a hemodialysis machine;

[0024] Figure 2 It is a structural schematic diagram of a catheter connector placed in an automatic disinfection sealing device for a central venous catheter connector of a hemodialysis machine;

[0025] Figure 3 It is a schematic diagram of the structure of the iodine cap;

[0026] Figure 4 1 is a schematic diagram of the cross-sectional structure of an iodine cap;

[0027] Figure 5 is a schematic diagram of the structure of a catheter connector placement table;

[0028] Figure 6 It is a structural schematic diagram of the pressing table;

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

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

[0031] Fig. 9 is a structural schematic diagram of the support plate;

[0032] Fig.10 It is a structural schematic diagram of a medical tape bonding mechanism;

[0033] Fig.11 It is a structural schematic diagram of a medical tape storage box;

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

[0035] Fig.13 It is a schematic diagram of the internal structure of the cylindrical box;

[0036] Fig.14 yes Fig.13 The enlarged structural diagram at A in the middle;

[0037] Fig.15 It is a structural schematic diagram of the iodine cap pushing mechanism;

[0038] Fig.16 It is a structural schematic diagram of the sealing mechanism;

[0039] Fig.17 It is a structural diagram of the moving mechanism.

[0040] In the figure: 1-sealed box; 11-window; 12-bottom plate; 2-iodine cap; 21-internal thread; 22-disinfectant cotton sleeve; 23-groove; 24-adhesive tape; 25-felt layer; 3-catheter joint support mechanism; 31-catheter joint placement table; 311-semicircular lower groove Ⅰ; 312-semicircular lower groove Ⅱ; 32-pressing table; 321-semicircular upper groove Ⅰ; 322-semicircular upper groove Ⅱ; 4-iodine cap rotating sleeve mechanism; 41-motor Ⅰ; 42-cylinder Ⅰ; 43-cylinder Ⅱ; 44-motor Ⅱ; 45-rotating sleeve; 46-clamping Cylinder; 5—catheter joint; 6—sealing mechanism; 61—sealing plate support platform; 62—sealing plate; 63—sealing plate driving cylinder; 64—operating chamber; 65—sealing groove; 67—sliding groove; 7—gauze block; 8—gauze block bending mechanism; 81—support plate; 82—folding and turning plate; 83—left turning plate; 84—right turning plate; 85—concave platform; 86—folding and turning motor; 87—left turning motor; 88—right turning 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 rod; 96—moving plate; 97—motor IV; 98—main cylinder; 10—medical tape bonding mechanism; 101—cylinder III; 102—rotating motor; 103—cylinder IV; 104—medical tape storage box; 1041—round bottom cover 1041; 1042—positioning sleeve; 1043—round upper 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—cylinder box; 142—rotating shaft; 143—motor III; 144—partition; 145—open and close 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—catheter joint pressure cylinder; 20—pressure plate; 201—rear fixed support platform. DETAILED DESCRIPTION

[0041] The present invention is described in detail below in conjunction with embodiments and drawings.

[0042] like Figure 1 and Figure 2As shown, the automatic disinfection and sealing device for the central venous catheter connector of the hemodialysis machine includes a sealing box 1 and an iodine cap 2, a catheter connector supporting mechanism 3, an iodine cap rotating sleeve mechanism 4, a gauze block 7, a gauze block bending mechanism 8, a moving mechanism 9 for driving the gauze block bending mechanism 8 to horizontally approach or move away from the catheter connector placement platform 31, a medical tape bonding mechanism 10, a gauze block storage mechanism 14, an iodine cap pushing 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 and placed in the sealing box 1. Front fixed support platform 16 is horizontally fixedly arranged on the front side wall of sealing box 1 and near the top, lifting cylinder IX 17 is fixedly connected to the bottom of front fixed support platform 16, the piston rod of lifting cylinder IX 17 is vertically downward, vertical connecting column 18 is vertically connected to the bottom end of the piston rod of lifting cylinder IX 17, catheter joint pressure cylinder 19 is fixedly connected to the bottom end of the vertical connecting column 18, the piston rod of catheter joint pressure cylinder 19 is vertically downward, pressure plate 20 is fixedly connected to the bottom end of the piston rod of catheter joint pressure cylinder 19, the bottom of pressure plate 20 is an arc plate matched with the outer wall of catheter joint 5, and the bottom of pressure plate 20 is provided with flexible pad, and rear fixed support platform 201 is horizontally fixedly arranged on the rear side wall of sealing box 1 and near the top. Front fixed support platform 16 is used to support iodine cap rotating sleeve mechanism 4, medical tape bonding mechanism 10, iodine cap pushing mechanism 15 and 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 joint pressure cylinder 19 extends downward, driving the flexible pad on the pressure plate 20 to press the catheter joint 5 placed on the catheter joint support mechanism 3 to prevent the catheter joint 5 from moving horizontally during the disinfection and sealing process.

[0043] Among them, the structure of iodine cap 2 is as follows Figure 3 and Figure 4As shown, the inner wall of the iodine cap 2 is composed of a diameter section I close to the inside, a diameter section II close to the outside, and a circular step formed between the diameter section I and the diameter section II, the diameter of the diameter section I is smaller than the diameter of the diameter section II, the inner wall of the iodine cap 2 located at the diameter section I is provided with an internal thread 21 that matches the external thread on the catheter connector 5, the inner wall of the iodine cap 2 located at the diameter section II is provided with a sterilizing cotton sleeve 22, the outer wall of the sterilizing cotton sleeve 22 is tightly fitted with the inner wall of the diameter section II of the iodine cap 2, and the inner end of the sterilizing cotton sleeve 22 is against the circular step in the iodine cap 2. When in use, the iodine cap 2 is sleeved on the catheter connector 5 by the iodine cap rotating sleeve mechanism 4, and the catheter connector 5 is pushed and disinfected during the process of the sterilizing cotton sleeve 22 on the iodine cap 2 being plugged into the catheter connector 5, and then the motor II 44 drives the iodine cap 2 to rotate, so that the internal thread 21 in the iodine cap 2 is sleeved on the external thread on the catheter connector 5 by the pushing rotation, thereby realizing the aseptic docking of the iodine cap 2 and the catheter connector 5. The iodine cap 2 is put on the catheter connector 5 by pushing and twisting, which not only disinfects the front end of the catheter connector 5, but also makes the front end of the catheter connector 5 be covered in the iodine cap 2, greatly reducing the probability of the catheter connector 5 being contaminated.

[0044] The front side wall of the sealing box 1 is provided with a window 11 for placing or taking the catheter connector 5. The catheter connector support mechanism 3 includes a catheter connector placement platform 31 and a pressing platform 32. Figure 1 and Figure 2 As shown, the catheter connector placement platform 31 is arranged on the front side wall of the sealed box 1 and close to the window 11. The front end of the catheter connector placement platform 31 is installed in the window 11 of the sealed box 1. A sealing mechanism 6 is also arranged in the sealed box 1 near the front side wall to seal the window 11. The catheter connector placement platform 31 is provided with a semicircular lower groove I 311 for placing the venous end of the catheter connector and a semicircular lower groove II 312 for placing the arterial end of the catheter connector. Figure 5 As shown, in this embodiment, the semicircular lower groove I 311 and the semicircular lower groove II 312 are arranged on the rear half of the catheter connector placement platform 31, and the catheter connector placement platform 31 is provided with an operation cavity 64 near the front side for placing the catheter connector 5 into the semicircular lower groove I 311 and the semicircular lower groove II 312, and the operating cavity 64 is provided with a sealing groove 65 for inserting the sealing plate 62. The pressing platform 32 is arranged directly above the catheter connector placement platform 31 in a manner that it can move up and down. In this embodiment, the pressing platform 32 is fixedly connected to the vertical connecting column 18 through a connecting piece, and the bottom of the pressing platform 32 is provided with a semicircular upper groove I 321 for pressing the venous end of the catheter connector and a semicircular upper groove II 322 for pressing the arterial end of the catheter connector, as shown in FIG. Figure 6As shown, the upper semicircular groove I321 corresponds to the front half of the lower semicircular groove I311, and the upper semicircular groove II322 corresponds to the front half of the lower semicircular groove II312. The catheter connector 5 includes a catheter connector vein end and a catheter connector arterial end. The bottom end of the vertical connecting column 18 is connected to two sets of catheter connector pressure cylinders 19 and pressure plates 20 distributed on the left and right. One pressure plate 20 corresponds to the rear half of the lower semicircular groove I311, and the other pressure plate 20 corresponds to the rear half of the lower semicircular groove II312. The medical staff holds the catheter connector 5 and places the catheter connector venous end and the catheter connector arterial end on the semicircular lower groove I311 and the semicircular lower groove II312 through the operating chamber 64. The piston rod of the lifting cylinder IX 17 extends downward, driving the vertical connecting column 18 and the pressing platform 32 connected thereto to move downward, so that the semicircular upper groove I321 on the pressing platform 32 is pressed on the catheter connector venous end, and the semicircular upper groove II322 is pressed on the catheter connector arterial end. At this time, one of the catheter connector pressure cylinders 19 extends downward, driving the flexible pad of the pressure plate 20 thereunder to press the catheter connector venous end, and the other catheter connector pressure cylinder 19 extends downward, driving the flexible pad of the pressure plate 20 thereunder to press the catheter connector arterial end, thereby fixing the catheter connector venous end and the catheter connector arterial end.

[0045] The iodine cap rotating sleeve 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. 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 to the middle of the sealing box 1, cylinder II 43 is fixedly mounted on the end of the piston rod of cylinder I 42, the piston rod of cylinder II 43 is downward, 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 arranged, rotating sleeve 45 is fixedly mounted on the power output shaft of motor II 44, the sleeve opening of rotating sleeve 45 faces one side of the catheter joint placement platform 31, and a plurality of clamping cylinders 46 are evenly arranged in the circumferential direction near the central hole in the rotating sleeve 45. In this embodiment, four clamping cylinders 46 are arranged in the rotating sleeve 45, as shown in FIG. Figure 7As shown, the piston rod of the clamping cylinder 46 points to the center hole of the rotating sleeve 45. The iodine cap 2 pushed out by the iodine cap pushing mechanism 15 is clamped by the clamping cylinder 46 on the rotating sleeve 45 through the cooperation of the motor I41, the cylinder I42, the cylinder II43 and the motor II44. After the clamping cylinder 46 on the rotating sleeve 45 clamps the iodine cap 2, the motor I41, the cylinder I42, the cylinder II43 and the motor II44 cooperate to make the iodine cap 2 in the rotating sleeve 45 correspond to the catheter connector 5 in the front-back direction, the piston rod of the cylinder I42 is gradually retracted, and the iodine cap 2 in the rotating sleeve 45 gradually approaches the catheter connector 5, and the motor II44 drives the rotating sleeve 45 to rotate, and the rotating sleeve 45 drives the iodine cap 2 to rotate synchronously through the clamping cylinder 46 thereon, and the iodine cap 2 is sleeved on the catheter connector 5 by pushing.

[0046] The gauze block bending mechanism 8 includes a support plate 81, a folding flip plate 82, a left flip plate 83 and a right flip plate 84. Figure 8 The rear half of the support plate 81 and the left and right sides of the front half are provided with a concave platform 85, as shown in FIG. Fig. 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. The folding flip plate 82 is arranged on the concave platform 85 of the rear half of the support plate 81, and the front end of the folding flip plate 82 is fixedly provided with a rotating shaft. The folding flip motor 86 is installed in the middle of the left side of the support plate 81. The power output shaft of the folding flip motor 86 is fixedly connected with the rotating shaft on the folding flip plate 82. When the folding flip motor 86 rotates, the rotating shaft on the folding flip plate 82 is driven to rotate, and then the folding flip plate 82 connected with the rotating shaft is driven to fold and flip forward. The left flip plate 83 is arranged on the concave platform 85 on the left side of the front half of the support plate 81, and the right end of the left flip plate 83 is fixedly provided with a rotating shaft. The left flip motor 87 is installed at the front end of the support plate 81 near the left side, and the power output shaft of the left flip motor 87 is fixedly connected with the rotating shaft on the left flip plate 83. When the left flip motor 87 rotates, the rotating shaft on the left flip plate 83 is driven to rotate, and then the left flip plate 83 connected with the rotating shaft is driven to flip to the right. The right flip plate 84 is arranged on the concave platform 85 on the right side of the front half of the support plate 81, and a rotating shaft is fixedly arranged on the left end of the right flip plate 84. The right flip motor 88 is installed at the front end of the support plate 81 near the right side, and the power output shaft of the right flip motor 88 is fixedly connected to the rotating shaft on the right flip plate 84. When the right flip motor 88 rotates, the rotating shaft on the right flip plate 84 is driven to rotate, thereby driving the right flip plate 84 connected to the rotating shaft to flip leftward. The gauze block 7 is placed on the middle part 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 penetrating the rear side along the front-back direction, the left flip plate 83 is provided with a through groove II 902 penetrating the left side along the left-right direction, and the right flip plate 84 is provided with a through groove III 903 penetrating the right side along the left-right direction.The gauze block 7 is placed 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, and when the venous end of the catheter connector and the arterial end of the catheter connector are pressed on the front half of the gauze block 7, the folding and flipping motor 86 drives the folding and flipping plate 82 to fold and flip forward, thereby driving the rear half of the gauze block 7 thereon to flip forward, thereby making the rear half of the gauze block 7 cover the venous end and the arterial end of the catheter connector, and pasting the medical tape 105 through the through groove I 901, so that the rear half and the front half of the gauze block 7 are connected together through the medical tape 105, and then the folding and flipping motor 86 is reversed, the folding and flipping plate 82 flips backward and returns to the concave platform 85 of the rear half of the support plate 81; the left flipping motor 87 drives the left flipping plate 83 to flip right, thereby driving the gauze block 7 thereon The left side flips to the right, so that the left side of the gauze block 7 covers the venous end and the arterial end of the catheter connector, and the medical tape 105 is pasted through the groove II 902, so that the left side of the flipped gauze block 7 is pasted on the gauze block 7, and then the left flip motor 87 is reversed, and the left flip plate 83 flips to the left and returns to the concave platform 85 on the left side of the support plate 81; the right flip motor 88 drives the right flip plate 84 to flip to the left, and then drives the right side of the gauze block 7 thereon to flip to the left, so that the right side of the gauze block 7 covers the venous end and the arterial end of the catheter connector, and the medical tape 105 is pasted through the groove III 903, so that the right side of the flipped gauze block 7 is pasted on other parts of the gauze block 7, and then the right flip motor 88 is reversed, and the right flip plate 84 flips to the right and returns to the concave platform 85 on the right side of the support plate 81.

[0047] The medical tape bonding mechanism 10 includes a cylinder III 101, a left-right moving cylinder 1010, a rotating motor 102, a cylinder IV 103, a medical tape storage box 104, a medical tape 105, a cylinder V 106, a cylinder VI 107 and a medical tape shearing machine 108. Fig.10As shown. Cylinder III 101 is fixedly connected to the vertical connection column 18 through a connecting piece. Cylinder III 101 is horizontally arranged and located above the catheter joint placement table 31. The piston rod of cylinder III 101 extends to the middle of the sealing box 1. The left-right movable cylinder 1010 is fixedly arranged on the piston rod of cylinder III 101. The piston rod of the left-right movable cylinder 1010 is telescopic. The rotating motor 102 is fixedly arranged on the piston rod of the left-right movable cylinder 1010. The rotating motor 102 is fixedly arranged on the piston rod of the left-right movable cylinder 1010. The power output shaft of the rotating motor 102 is vertically downward. Cylinder IV 103 is fixedly arranged on the power output shaft of the rotating motor 102. The piston rod of cylinder IV 103 is vertically downward. The top of the medical tape storage box 104 is fixed on cylinder IV 10 3, the tape outlet of the medical tape storage box 104 faces downward, the medical tape 105 is rotatably placed in the medical tape storage box 104, and the outer end of the medical tape 105 is pulled out from the tape outlet of the medical tape storage box 104; the cylinder V106 is connected to the cylinder barrel of the cylinder IV103 through the connecting plate 109, the piston rod of the cylinder V106 is vertically downward, the cylinder VI107 is fixedly connected to the bottom end of the piston rod of the cylinder V106, the piston rod of the cylinder VI107 extends horizontally to the bottom of the tape outlet of the medical tape storage box 104, and the medical tape shearing machine 108 is installed on the piston rod of the cylinder VI107, and the shearing blade on the medical tape shearing machine 108 corresponds to the medical tape 105 pulled out of the tape outlet of the medical tape storage box 104. The structure of the medical tape storage box 104 is as follows: Fig.11 and Fig.12As shown, the medical tape storage box 104 includes a circular bottom cover 1041, a positioning sleeve 1042 and a circular upper cover 1043, the circular bottom cover 1041 and the circular upper cover 1043 are buckled together, the positioning sleeve 1042 is installed in the middle of the circular bottom cover 1041, the medical tape 105 is sleeved outside the positioning sleeve 1042, the tape outlet is set 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. The medical tape storage box 104 is similar to a toilet roll paper box, and the structure of the medical tape storage box 104 is prior art, so it is not repeated. The medical tape shearing machine 108 can adopt a pneumatic shear or an automatic tape cutting machine, etc. The medical tape shearing machine 108 is prior art, so it is not repeated. 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 rear positions of the medical tape storage box 104 and the medical tape shearing machine 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 shearing machine 108 are adjusted by extending and retracting the plug rod of the left and right moving cylinder 1010. The cylinder IV 103 and the medical tape storage box 104, the connecting plate 109, the cylinder V 106, the cylinder VI 107 and the medical tape shearing machine 108 connected to the cylinder IV 103 are driven by the rotating motor 102. Rotate so that the medical tape 105 in the tape outlet of the medical tape storage box 104 corresponds to the through groove I901, the through groove I901 or the gauze block 7 under the through groove I901 that needs to be bonded, and then the cylinder 103 extends downward to make the medical tape 105 in the tape outlet bond to the gauze block 7, and as the piston rod of the cylinder III101 moves forward and backward or the piston rod of the cylinder 1010 moves left and right, the medical tape 105 under the tape outlet bonds the flipped gauze block 7, thereby achieving the purpose of wrapping the gauze block 7 around the venous end and the arterial end of the catheter connector.

[0048] The gauze block storage mechanism 14 includes a cylindrical box 141, a rotating shaft 142 and a motor III 143. Figure 1 and Figure 2 The cylindrical box 141 is arranged 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, and the axis of the rotating shaft 142 is parallel to the moving direction of the support plate 81; a plurality of partitions 144 are arranged between the outer wall of the rotating shaft 142 and the inner wall of the cylindrical box 141 in the circumferential direction, as shown in FIG. Fig.13 As shown, a switch door 145 is provided on the box wall of the cylindrical box 141 corresponding to two adjacent partitions 144, one side of the switch door 145 is hinged on the corresponding partition 144, an iron block 146 is provided on the other side of the switch door 145, and an electromagnet 147 is provided on the partition 144 corresponding to the other side of the switch door 145, as shown in FIG. Fig.14 As shown, when the electromagnet 147 is powered on, the electromagnet 147 is attracted to the corresponding iron block 146, and at this time, the corresponding switch door 145 is closed. A gauze block storage cavity 148 is formed between two adjacent partitions 144 and the switch doors 145 corresponding to the two adjacent partitions 144, and a gauze block 7 is placed in each gauze block storage cavity 148. The motor III 143 is fixedly installed on the rear fixed support platform 201, and the motor III 143 drives the sealing box 1 to rotate through the rotating shaft 142. When the switch doors 145 on the sealing box 1 rotate to the bottom, the electromagnet 147 corresponding to one of the switch doors 145 rotated to the bottom is powered off, 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 below, the folding flip plate 82, the left flip plate 83 and the right flip plate 84.

[0049] The iodine cap ejection mechanism 15 comprises a guide cylinder 151, a sealing slide plate 152 and a cylinder VII 153. Fig.15 As shown. The guide cylinder 151 is horizontally arranged above the catheter joint placement platform 31, and the guide cylinder 151 is fixedly connected to the vertical connection column 18 through a connector, and the sealing slide plate 152 is arranged in the guide cylinder 151 and slides with the inner wall of the guide cylinder 151 and seals and cooperates, and the cylinder VII 153 is fixedly arranged at the front side in the guide cylinder 151, and the axis of the guide cylinder 151 is parallel to the axis of the semicircular lower groove I 311, and the piston rod of the cylinder VII 153 is fixedly connected to the sealing slide plate 152, and a plurality of iodine caps 2 are horizontally placed in sequence on the rear side of the guide cylinder 151. In the present embodiment, five iodine caps 2 are horizontally placed in sequence on the rear side of the guide cylinder 151, and the opening of each iodine cap 2 faces forward, and the piston rod of the cylinder VII 153 extends to push the sealing slide plate 152 to drive the iodine cap 2 to move toward the rear outlet of the guide cylinder 151. When the rotating sleeve 45 in the iodine cap rotating sleeve mechanism 4 is used to grab the iodine cap 2 in the guide cylinder 151, the last iodine cap 2 in the guide cylinder 151 is pushed out from the rear end of the guide cylinder 151 through the cylinder VII 153, and the position of the rotating sleeve 45 is adjusted by the motor I 41, the cylinder I 42, the cylinder II 43 and the motor II 44 so that the rotating sleeve 45 is aligned with the pushed out iodine cap 2, the piston rod of the cylinder I 42 is retracted, and the rotating sleeve 45 is driven to approach the pushed out iodine cap 2, and then the clamping cylinder 46 in the rotating sleeve 45 is used to clamp the iodine cap 2, thereby completing the grabbing of the iodine cap 2.

[0050] The disinfection cotton sleeve 22 is composed of two semicircular disinfection cotton sleeves, and one side of the two semicircular disinfection cotton sleeves is rotatably sealed and connected; the iodine cap 2 is composed of two semicircular iodine caps, such as Figure 3 and Figure 4As shown, one side of the two semicircular iodine caps is rotatably sealed and connected, and the other sides of the two semicircular iodine caps are respectively provided with grooves 23 along the circumferential direction, wherein an adhesive tape 24 is connected in the groove 23 of one semicircular iodine cap, and a felt layer 25 is arranged in the groove 23 of the other semicircular iodine cap; when the free end of the adhesive tape 24 of the groove 23 of one semicircular iodine cap is overlapped on the felt layer 25 in the corresponding groove 23 of the other semicircular iodine cap, the other sides of the two semicircular iodine caps form a sealed butt joint, and the other sides of the two semicircular disinfection cotton sleeves also form a closed butt joint. When it is necessary to remove the iodine-containing cap 2 on the catheter connector 5 and connect it to the pipeline on the hemodialysis machine, first remove the gauze piece 7 of the catheter connector 5, then pull the other end of the adhesive tape 24 on one of the semicircular iodine-containing caps away from the felt layer 25 on the other semicircular iodine-containing cap, then the two semicircular iodine-containing caps and the two semicircular sterile cotton sleeves can be turned outward, the iodine-containing cap 2 is removed from the catheter connector 5, and finally the catheter connector 5 is connected to the pipeline on the hemodialysis machine, thereby avoiding the iodine-containing cap 2 from being rotated and removed from the catheter connector 5, and then avoiding rotating the iodine-containing cap 2 backward to take it out and contaminating the catheter connector 5.

[0051] The sealing mechanism 6 includes a sealing plate support platform 61, a sealing plate 62 for sealing the window 11, and a sealing plate driving cylinder 63 for driving the sealing plate 62 to seal or open the window 11. Fig.16 As shown. The sealing plate support platform 61 is arranged on the front side wall in 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 catheter joint placement platform 31. The sealing plate support platform 61 is provided with a slide groove 66 for the sealing plate 62 to slide up and down, and the slide groove 66 is connected with the sealing groove 65 in the vertical direction. The sealing plate driving cylinder 63 is arranged at the bottom of the sealing plate support platform 61, and the piston rod of the sealing plate driving cylinder 63 extends vertically upward into the slide groove 66. The sealing plate 62 is arranged in the slide 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 slide groove 66 into the sealing groove 65, and the operating chamber 64 is closed, so as to realize the processing sealing state in the entire sealing box 1. When the piston rod of the sealing plate driving cylinder 63 is retracted downward, the sealing plate 62 is driven to slide from the sealing groove 65 into the sliding 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 screw rod 95, a moving plate 96, a motor IV 97 and a main cylinder 98. Figure 1 , Figure 2 and Fig.17The 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 respectively close to the front side and close to the rear side. A left guide rail 93 and a right guide rail 94 are arranged on the bottom plate 12 and between the front support plate 91 and the rear support plate 92. The movable plate 96 is placed between the left guide rail 93 and the right guide rail 94 and is slidably matched with the left guide rail 93 and the right guide rail 94. The screw rod 95 is arranged between the left guide rail 93 and the right guide rail 94 and is parallel to the left guide rail 93. A threaded hole is arranged at the lower part of the movable plate 96. The screw rod 95 passes through the threaded hole on the movable plate 96 and is slidably matched with the left guide rail 93 and the right guide rail 94. The threaded holes on the moving plate 96 are threadedly matched, the front end of the screw rod 95 is installed on the front support plate 91 and rotates with the front support plate 91, the rear end of the screw rod 95 passes through the rear support plate 92 and rotates with the rear support plate 92 through the bearing, the motor IV 97 is installed on the bottom plate 12 and is located behind the rear support plate 92, and the power output shaft of the motor IV 97 is connected to the rear end of the screw rod 95; the main cylinder 98 is fixedly installed on the moving plate 96, the piston rod of the main cylinder 98 is vertically upward, and the support plate 81 is horizontally fixed on the top of the piston rod of the main cylinder 98. The motor IV 97 drives the screw rod 95 to rotate, the screw rod 95 drives the moving plate 96 to move forward and backward, and the piston rod of the main cylinder 98 is extended and retracted to adjust the height of the support plate 81.

[0053] A positioning platform 89 is provided at 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. Cylinders VIII 891 and baffles 892 are provided on the left and right sides of the positioning platform 89. Figure 1 and Figure 2 As shown, the piston rod of the cylinder VIII 891 extends horizontally forward, and guide grooves 893 are respectively provided on the left and right sides of the positioning platform 89 along the front-to-back direction. A baffle 892 is provided in each of the guide grooves 893 on the left and right sides. The baffle 892 and the corresponding guide grooves 893 on the side wall of the positioning platform 89 are slidably matched in the front-to-back 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, and when the piston rods of the cylinder VIII 891 on the left and right sides extend, the baffles 892 on the left and right sides extend to the left and right sides of the folding flip plate 82. When the gauze block 7 in the gauze block storage chamber 148 at the bottom of the cylindrical box 141 slides into the middle of the front half of the support plate 81, the folding flip plate 82, the left flip plate 83 and the right flip plate 84 through the switch door 145, the baffles 892 on the left and right sides limit the sliding gauze block 7, so that the sliding gauze block 7 is accurately located on the middle of the front half of the support plate 81, the folding flip plate 82, the left flip plate 83 and the right flip plate 84.

[0054] The sealing box 1, the guide tube 151, the cylindrical box 141, the partition 144 and the switch door 145 are all made of transparent plastic materials. The automatic disinfection and sealing status of the central venous catheter connector in the sealing box 1 can be checked at any time through the transparent sealing box 1, the usage status of the number of iodine caps 2 in the guide tube 151 can be checked at any time through the transparent guide tube 151, and the usage status of the gauze block 7 in the gauze block storage chamber 148 can be checked at any time through the transparent cylindrical box 141.

[0055] Before using the automatic disinfection sealing device, the piston of the sealing plate driving cylinder 63 extends upward, driving the sealing plate 62 to slide upward into the sealing groove 65, closing the operating chamber 64, thereby putting the sealing box 1 in a sealed state. When using the automatic disinfection sealing device, the sealing plate driving cylinder 63 drives the sealing plate 62 to retract into the slide groove 66, and the operating chamber 64 is opened. The catheter joint venous end and the catheter joint arterial end of the central venous catheter joint after the hemodialysis machine are inserted into the semicircular lower groove I311 and the semicircular lower groove II312 on the catheter joint placement platform 31, and the piston rod of the lifting cylinder IX 17 extends downward, driving the iodine cap pushing mechanism 15, the medical tape bonding mechanism 10, the catheter joint pressure cylinder 19 and the pressing platform 32 on the vertical connecting column 18 to move downward together, and the semicircular upper groove I321 and the semicircular upper groove II322 under the pressing platform 32 are pressed on the catheter joint venous end and the catheter joint arterial end respectively, and the piston rod of the catheter joint pressure cylinder 19 extends downward, driving the pressure plate 20 to press the catheter joint venous end and the catheter joint arterial end with the flexible pad thereunder, so that they are fixed on the catheter joint placement platform 31. The last iodine cap 2 in the guide cylinder 151 is pushed out from the rear end of the guide cylinder 151 by the cylinder VII 153, and the position of the rotating sleeve 45 is adjusted by the motor I 41, the cylinder I 42, the cylinder II 43 and the motor II 44, and the iodine cap 2 is clamped by the clamping cylinder 46 in the rotating sleeve 45, thereby completing the grasping of the iodine cap 2, and then the position of the rotating sleeve 45 is adjusted by the motor I 41, the cylinder I 42, the cylinder II 43 and the motor II 44, so that it corresponds to the catheter connector 5 on the catheter connector placement table 31 in the front and back, and the motor II 44 rotates, driving the rotating sleeve 45 and the clamping cylinder 46 to clamp the catheter connector 5 on the guide cylinder 31. The iodine cap 2 rotates together, and under the coordinated action of cylinder I 42 and motor II 44, the iodine cap 2 is pushed and screwed on the venous end of the catheter connector to achieve automatic disinfection and sealing of the venous end of the catheter connector, and the clamping cylinder 46 is released, and the same operation is performed on the arterial end of the catheter connector in the above manner. When the iodine cap 2 is put on the venous end and the arterial end of the catheter connector, the piston rod of cylinder II 43 is retracted, driving the motor II 44 and the rotating sleeve 45 to move upward, and then the other components of the iodine cap rotating sleeve mechanism 4 are driven by motor I 41 to rotate together to deviate from the front-to-back direction position of the catheter connector 5. The motor III 143 rotates, and at the same time, the cylinder VIII 891 drives the baffle 892 to extend forward and rotate to the gauze block storage cavity 148 corresponding to one of the switch doors 145 below. The gauze block 7 placed in the gauze block storage cavity 148 slides into the middle of the front half of the corresponding support plate 81 below, the folding flip plate 82, the left flip plate 83 and the right flip plate 84. The motor IV 97 drives the screw rod 95 to rotate, driving the moving plate 96, the main cylinder 98 and the gauze block bending mechanism 8 thereon to move forward together. When it moves to the rear half of the catheter connector 5, the moving mechanism 9 stops.The piston rod of the main cylinder 98 moves upward, so that the middle part of the front half of the support plate 81, the gauze block 7 on the folding and flipping plate 82, the left flipping plate 83 and the right flipping plate 84 are pressed under the venous end and the 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 block 7 thereon to flip forward, thereby making the rear half of the gauze block 7 cover the venous end and the arterial end of the catheter connector. Under the cooperation of the cylinder III 101, the left and right moving cylinder 1010, the rotating motor 102 and the cylinder IV 103, the medical glue The cloth storage box 104 moves down and aligns with the through slot I 901, and the medical tape 105 extending out of the tape outlet of the medical tape storage box 104 moves forward along the through slot I 901 from back to front, so that the medical tape 105 bonds the folded portion of the gauze block 7 with the unfolded portion of the bottom, and the piston rod of the cylinder V 106 extends downward, and the piston rod of the cylinder VI 107 extends backward, driving the medical tape shearing machine 108 to cut the medical tape 105, and then driving the medical tape shearing machine 108 to return to its original position through the cylinder V 106 and the cylinder VI 107; the left flip motor 87 drives the left flip plate 83 The medical tape 105 extending from the tape outlet of the medical tape storage box 104 moves along the through groove II 902 from left to right, so that the medical tape 105 sticks the flipped left side of the gauze block 7 to other parts of the gauze block 7, and the medical tape shearing machine 108 cuts the medical tape 105 again. ; The right flip motor 88 drives the right flip plate 84 to flip to the left, so that the right side of the gauze block 7 covers the venous end and the arterial end of the catheter connector. Through the cooperation of the cylinder III 101, the left and right moving cylinder 1010, the rotating motor 102 and the 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 gauze block 7 on the venous end and the arterial end of the catheter connector.After the catheter joint 5 is wrapped, cylinder V106 and cylinder VI107 drive the medical tape shearing machine 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 joint pressure cylinder 19 retracts upward, the piston rod of the lifting cylinder IX17 retracts, and the iodine cap pushing mechanism 15, the medical tape bonding mechanism 10, the catheter joint pressure cylinder 19 and the pressing platform 32 on the vertical connecting column 18 are driven to move upward together, and the semicircular upper groove I321 and the semicircular upper groove II322 under the pressing platform 32 are separated from the catheter joint venous end and the catheter joint arterial end, and the medical staff takes out the sterilized and sealed catheter joint 5, and the piston rod of the sealing plate driving cylinder 63 extends upward, drives the sealing plate 62 to move up into the sealing groove 65 and closes the operating chamber 64. At this time, 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, and manual bonding. This not only reduces the workload of medical staff, but also avoids the pollution caused by manual operation of medical staff. At the same time, it also reduces the time that the catheter connector 5 is exposed to the outside world, thereby greatly reducing the chance of the catheter connector 5 being contaminated.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. Automatic disinfection and sealing device for central venous catheter connector of hemodialysis machine, characterized by: It comprises a sealing box (1), an iodine-containing cap (2) arranged in the sealing box (1), a catheter joint supporting mechanism (3) and an iodine-containing cap screwing mechanism (4); The inner wall of the iodine tin cap (2) is composed of a diameter section I close to the inside, a diameter section II close to the outside, and a circular step formed between the diameter section I and the diameter section II. The diameter of the diameter section I is smaller than the diameter of the diameter section II. The inner wall of the diameter section I of the iodine tin cap (2) is provided with an internal thread (21) that matches the external thread on the catheter connector (5). The inner wall of the diameter section II of the iodine tin cap (2) is provided with a sterilizing cotton sleeve (22). The outer wall of the sterilizing cotton sleeve (22) is tightly fitted with the inner wall of the diameter section II of the iodine tin cap (2). The inner end of the sterilizing cotton sleeve (22) is against the circular step inside the iodine tin cap (2). The front side wall of the sealing box (1) is provided with a window (11) for placing or taking out the catheter connector (5); the catheter connector support mechanism (3) comprises a catheter connector placement platform (31) and a pressing platform (32); the catheter connector placement platform (31) is provided on the front side wall of the sealing box (1) and close to the window (11); a sealing mechanism (6) for sealing the window (11) is also provided in the sealing box (1) close to the front side wall; the catheter connector placement platform (31) is provided with a semicircular lower groove I (311) for placing the venous end of the catheter connector and a pressure plate (32) for pressing the catheter connector. A semicircular lower groove II (312) for placing the arterial end of the catheter connector; the pressing platform (32) is arranged directly above the catheter connector placement platform (31) in a manner that it can move up and down, and the bottom of the pressing platform (32) is provided with a semicircular upper groove I (321) for pressing the venous end of the catheter connector and a semicircular upper groove II (322) for pressing the arterial end of the catheter connector, the semicircular upper groove I (321) and the semicircular lower groove I (311) correspond to each other up and down, and the semicircular upper groove II (322) and the semicircular lower groove II (312) correspond to each other up and down; The iodine cap rotating sleeve mechanism (4) comprises 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 in the sealing 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 to the middle of the sealing box (1), the cylinder II (43) is fixedly installed on the end of the piston rod of the cylinder I (42), and the cylinder II (44) is fixedly installed on the end of the piston rod of the cylinder I (42). The piston rod of the cylinder (43) is downward, the motor II (44) is fixedly mounted at the bottom of the piston rod of the cylinder II (43), the power output shaft of the motor II (44) is horizontally arranged, the rotating sleeve (45) is fixedly mounted on the power output shaft of the motor II (44), the sleeve opening of the rotating sleeve (45) faces the side of the catheter joint placement table (31), and a plurality of clamping cylinders (46) are evenly distributed along the circumferential direction on one side of the rotating sleeve (45) near the center hole, and the piston rods of the clamping cylinders (46) point to the center hole of the rotating sleeve (45).

2. The automatic disinfection and sealing device for the central venous catheter connector of a hemodialysis machine according to claim 1, characterized in that: It also includes a gauze block (7) arranged in the sealing box (1), a gauze block bending mechanism (8) and a moving mechanism (9) for driving the gauze block bending mechanism (8) to horizontally approach or move away from the catheter joint placement platform (31); the gauze block bending mechanism (8) includes a support plate (81), a folding and turning plate (82), a left turning plate (83) and a right turning plate (84); a concave platform (85) is arranged on the rear half of the support plate (81) and on the left and right sides of the front half; the folding and turning plate (82) is arranged on the concave platform (85) of the rear half of the support plate (81) and is driven by a folding and turning motor (86) to fold and turn forward; the left turning plate (83) is arranged on the lower left side of the front half of the support plate (81) The left flip plate (83) is on a concave platform (85), driven by a left flip motor (87) to flip to the right, and the right flip plate (84) is arranged on a concave platform (85) on the right side of the front half of the support plate (81), and driven by a right flip motor (88) to flip to the left; the gauze block (7) is placed on the middle part 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) penetrating the rear side, the left flip plate (83) is provided with a through groove II (902) penetrating the left side, and the right flip plate (84) is provided with a through groove III (903) penetrating the right side.

3. The automatic disinfection and sealing device for the central venous catheter connector of a hemodialysis machine according to claim 2, characterized in that: The medical adhesive tape bonding mechanism (10) is also provided in the sealing box (1), wherein the medical adhesive tape bonding mechanism (10) comprises a cylinder III (101), a left-right movable cylinder (1010), a rotating motor (102), a cylinder IV (103), a medical adhesive tape storage box (104), medical adhesive tape (105), a cylinder V (106), a cylinder VI (107) and a medical adhesive tape shearing machine (108); the cylinder III (101) is horizontally provided at the catheter connection. The head placement platform (31) is located above the head placement platform (31), the piston rod of the cylinder III (101) extends to the middle of the sealing box (1), the left-right moving cylinder (1010) is fixedly arranged on the piston rod of the cylinder III (101), the piston rod of the left-right moving cylinder (1010) is extended left-right, the rotating motor (102) is fixedly arranged on the piston rod of the left-right moving cylinder (1010), the power output shaft of the rotating motor (102) is vertically downward, and the cylinder IV ( The cylinder (103) is fixedly arranged on the power output shaft of the rotating motor (102), the piston rod of the cylinder IV (103) is vertically downward, the top of the medical adhesive tape storage box (104) is fixed on the bottom end of the piston rod of the cylinder IV (103), and the adhesive tape outlet of the medical adhesive tape storage box (104) is downward; the cylinder V (106) is connected to the cylinder barrel of the cylinder IV (103) through a connecting plate (109), and the piston rod of the cylinder V (106) is vertically downward. Downward, the cylinder VI (107) is fixedly connected to the bottom end of the piston rod of the cylinder V (106), and the piston rod of the cylinder VI (107) extends horizontally to below the tape outlet of the medical tape storage box (104). The medical tape shearing machine (108) is installed on the piston rod of the cylinder VI (107), and the shearing blade on the medical tape shearing machine (108) corresponds to the medical tape (105) pulled out of the tape outlet of the medical tape storage box (104).

4. The automatic disinfection and sealing device for the central venous catheter connector of a hemodialysis machine according to claim 3, characterized in that: The invention also comprises a gauze block storage mechanism (14) arranged in the sealed box (1), the gauze block storage mechanism (14) comprising a cylindrical box (141), a rotating shaft (142) and a motor III (143), the cylindrical box (141) being arranged above the support plate (81), the rotating shaft (142) passing through the cylindrical box (141) along the axis of the cylindrical box (141), and the power output shaft of the motor III (143) being 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); a plurality of partitions (144) are arranged between the outer wall of the rotating shaft (142) and the inner wall of the cylindrical box (141) in the circumferential direction; a switch door (145) is arranged on the box wall of the cylindrical box (141) corresponding to two adjacent partitions (144); one side of the switch door (145) is hinged on the corresponding partition (144); the other side of the switch door (145) is hinged on the corresponding partition (144); An iron block (146) is arranged on one side, and an electromagnet (147) is arranged on the partition (144) corresponding to the other side of the switch door (145); a gauze block storage cavity (148) is formed between two adjacent partitions (144) and the switch doors (145) corresponding to the two adjacent partitions (144), and a gauze block (7) is placed in each gauze block storage cavity (148); the motor III (143) drives the sealing box (1) through the rotating shaft (142) When the switch doors (145) on the sealing box (1) are rotated downward, the electromagnet (147) corresponding to one of the switch doors (145) rotated downward is powered off and the switch door (145) is opened, and 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) below, 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 of a hemodialysis machine according to claim 4, characterized in that: The invention also comprises an iodine cap pushing mechanism (15) arranged in the sealing box (1), the iodine cap pushing mechanism (15) comprising a guide cylinder (151), a sealing slide plate (152) and a cylinder VII (153), the guide cylinder (151) being arranged horizontally above the catheter joint placement platform (31), the sealing slide plate (152) being arranged in the guide cylinder (151) and slidingly and sealingly cooperating with the inner wall of the guide cylinder (151), and the cylinder VII (153) being fixedly arranged At the front side of the guide cylinder (151), the axis of the guide cylinder (151) is parallel to the axis of the semicircular lower groove I (311), the piston rod of the cylinder VII (153) is fixedly connected to the sealing slide plate (152), and a plurality of iodine caps (2) are horizontally placed in sequence at the rear side of the guide cylinder (151), and the piston rod of the cylinder VII (153) extends to push the sealing slide plate (152) to drive the iodine caps (2) to move toward the rear outlet of the guide cylinder (151).

6. The automatic disinfection and sealing device for the central venous catheter connector of a hemodialysis machine according to claim 5, characterized in that: The disinfection cotton sleeve (22) is composed of two semicircular disinfection cotton sleeves, one side of which is rotatably sealed and connected; the iodine cap (2) is composed of two semicircular iodine caps, one side of which is rotatably sealed and connected, and the other sides of the two semicircular iodine caps are respectively provided with grooves (23) along the circumferential direction, wherein an adhesive tape (24) is connected in the groove (23) of one semicircular iodine cap, and a felt layer (25) is arranged in the groove (23) of the other semicircular iodine cap; when the free end of the adhesive tape (24) of the groove (23) of one semicircular iodine cap is overlapped on the felt layer (25) in the corresponding groove (23) of the other semicircular iodine cap, the other sides of the two semicircular iodine caps form a sealed butt joint, and the other sides of the two semicircular disinfection cotton sleeves also form a sealed butt joint.

7. The automatic disinfection and sealing device for the central venous catheter connector of a hemodialysis machine according to claim 6, characterized in that: The sealing mechanism (6) comprises a sealing plate support platform (61), a sealing plate (62) for sealing the window (11), and a sealing plate driving cylinder (63) for driving the sealing plate (62) to seal or open the window (11); the sealing plate support platform (61) is arranged on the front side wall of 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); the front end of the catheter joint placement platform (31) is installed in the window (11) of the sealing box (1); the catheter joint placement platform (31) is provided with a semicircular lower groove I (311) and a semicircular lower groove near the front side for placing the catheter joint (5) An operating chamber (64) on groove II (312), the operating chamber (64) is provided with sealing grooves (65) around which the sealing plate (62) can be inserted, the sealing plate support platform (61) is provided with a slide groove (66) for the sealing plate (62) to slide up and down, the slide groove (66) is connected with the sealing groove (65) in the vertical direction, the sealing plate driving cylinder (63) is arranged 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 arranged in the slide 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).

8. The automatic disinfection and sealing device for the central venous catheter connector of a hemodialysis machine according to any one of claims 1 to 7, characterized in that: The moving mechanism (9) comprises a front support plate (91), a rear support plate (92), a left guide rail (93), a right guide rail (94), a screw rod (95), a moving plate (96), a motor IV (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 sealing box (1) and are respectively close to the front side and close to the rear side; a left guide rail (93) and a right guide rail (94) are arranged on the bottom plate (12) and 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 is slidably matched with the left guide rail (93) and the right guide rail (94); the screw rod (95) is arranged on the left guide rail (93) and the right guide rail (94) The screw rod (95) is arranged between the movable plate (96) and parallel to the left guide rail (93); the screw rod (95) passes through the movable plate (96) and is threadedly matched with the movable plate (96); the front end of the screw rod (95) is mounted on the front support plate (91) and is rotationally matched with the front support plate (91); the rear end of the screw rod (95) passes through the rear support plate (92) and is rotationally matched with the rear support plate (92); the motor IV (97) is mounted on the bottom plate (12) and is 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 rod (95); the main cylinder (98) is fixedly mounted on the movable plate (96); the piston rod of the main cylinder (98) is vertically upward; and the support plate (81) is horizontally fixed on the top end of the piston rod of the main cylinder (98).

9. The automatic disinfection and sealing device for the central venous catheter connector of a hemodialysis machine according to claim 8, characterized in that: A positioning platform (89) is provided at 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), and cylinder VIII (891) and baffle (892) are provided outside the left and right sides of the positioning platform (89), the piston rod of the cylinder VIII (891) extends horizontally forward, the baffle (892) and the side wall of the positioning platform (89) are slidably matched in the front-to-back direction, and the rear end of the baffle (892) is fixedly connected to the piston rod of the cylinder VIII (891) on the corresponding side, and when the piston rods of the cylinder VIII (891) on the left and right sides are extended, the baffles (892) on the left and right sides extend to the left and right sides of the folding flip plate (82).

10. The automatic disinfection and sealing device for the central venous catheter connector of a hemodialysis machine 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) arranged in the sealed box (1); the front fixed support platform (16) is fixedly arranged 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 platform (32) and the cylinder III (101) are all fixedly connected to the vertical connecting column (18) through a connecting piece, the catheter joint pressure cylinder (19) is fixedly connected to the bottom end of the vertical connecting column (18), the piston rod of the catheter joint pressure cylinder (19) is vertically downward, and the pressure plate (20) is fixedly connected to the bottom end of the piston rod of the catheter joint pressure cylinder (19), the bottom of the pressure plate (20) is an arc-shaped plate matching the outer wall of the catheter joint (5), and a flexible pad is arranged at the bottom of the pressure plate (20).

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