A connector conversion connection device for peritoneal dialysis

Abstract

The application provides a joint conversion connecting device for peritoneal dialysis, and belongs to the technical field of medical equipment. The joint conversion connecting device for peritoneal dialysis comprises a pipeline assembly and a conversion assembly. The pipeline assembly comprises an external short pipe body, an iodophor cap body, a human body end joint body and a protective cover body. The surface of the external short pipe body is provided with a first fastening part. The end of the external short pipe body is provided with a first threaded connector. The surface of the iodophor cap body is provided with a second fastening part. The connecting end of the iodophor cap body is provided with a first groove. The joint in the closed shell is automatically switched and screwed. The joint connecting part does not need to be contacted by hands in the whole process. The peritonitis infection risk in the peritoneal dialysis liquid replacement process is greatly reduced. The external short pipe body, the iodophor cap body and the human body end joint body of the pipeline assembly all adopt the clinical general screw thread interface standard. A special dialysis liquid joint is not needed. The adaptability is strong. The defect that the generality of the prior art is poor is solved.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a connector conversion device for peritoneal dialysis. Background Technology

[0002] Peritoneal dialysis is a dialysis method that uses the body's own peritoneum as a dialysis membrane. Dialysis fluid infused into the peritoneal cavity exchanges solutes and water with plasma components in the capillaries on the other side of the peritoneum, removing retained metabolic waste products and excess water from the body, while simultaneously replenishing essential substances through the dialysis fluid. When the peritoneal dialysis fluid becomes saturated with toxins and water, it needs to be drained and replaced with fresh dialysis fluid. This continuous replenishment of the peritoneal dialysis fluid achieves the goal of renal replacement or supportive therapy.

[0003] During the fluid exchange process, the external tubing (patient-side connector) connected to the patient and the human-side connector (dialysis fluid-side connector) connected to the dialysate bag are repeatedly disassembled and reassembled. During a single fluid exchange, the operator must first remove the iodine cap from the external tubing and the protective cap from the human-side connector. Then, the external tubing is connected to the human-side connector. After the peritoneal dialysis fluid is drained and new fluid is injected, the external tubing must be separated from the human-side connector and sealed with an iodine cap to maintain a sterile seal.

[0004] During the disassembly and assembly process, the connection points must be kept sterile. If the operation is not standardized, bacteria may adhere to them, leading to peritonitis. Therefore, strict protective measures must be taken during the operation. For patients treated with CAPD (Continuous Ambulatory Peritoneal Dialysis), peritoneal dialysis fluid changes are required 3 to 5 times a day. The operation is cumbersome and time-consuming, and the frequent disassembly and assembly greatly increases the probability of peritonitis.

[0005] To address the aforementioned issues, existing technologies have designed auxiliary devices for the fluid exchange process, allowing operators to connect the external short tube to the human end connector without touching the connector connection point. However, they do not provide a method for separating the external short tube from the human end connector and connecting it to the iodine cap, making it difficult to cover the entire peritoneal dialysis fluid exchange process. In another approach, the inventors provided a connector conversion device, along with a patient end connector assembly and a dialysate end connector assembly that can be properly clamped and changed using this device. However, this approach requires the use of dedicated connectors; that is, the patient end connector assembly and dialysate end connector assembly must be used in conjunction. If the patient end connector of this approach is used, only dialysate with the corresponding dialysate end connector design can be used, thus limiting the applicability of this solution.

[0006] Therefore, in order to solve the technical problems of the existing technology, such as the cumbersome and time-consuming operation of peritoneal dialysis fluid exchange, the difficulty of aseptic control and the easy occurrence of peritonitis, the inability of existing auxiliary devices to cover the complete fluid exchange process of connector separation and reconnection, and the poor universality and limited application scenarios of dedicated connector solutions, this invention is applied for as a connector conversion and connection device for peritoneal dialysis. Summary of the Invention

[0007] The purpose of this invention is to provide a connector conversion and connection device for peritoneal dialysis, which aims to solve the problems of existing technologies that do not provide a method for separating the external short tube from the human end connector and connecting it to the iodine cap, making it difficult to cover the complete peritoneal dialysis fluid exchange process and the limitations of existing technologies.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A connector conversion device for peritoneal dialysis includes a tubing assembly and a conversion assembly. The conversion assembly includes a housing assembly and a connector clamping assembly disposed inside the housing assembly for housing the tubing assembly. The lower part of the connector clamping assembly is provided with a transmission mechanism and a connector adjustment mechanism. The end of the transmission mechanism is provided with a connector switching mechanism and a tubing guiding mechanism. An ejection mechanism is provided on one side inside the housing assembly.

[0009] The piping assembly includes an external short pipe body, an iodine cap body, a human end connector body, and a protective cover. The surface of the external short pipe body is provided with a first fastening part, and the end of the external short pipe body is provided with a first threaded connector. The surface of the iodine cap body is provided with a second fastening part, the connecting end of the iodine cap body is provided with a first groove, and the inner sidewall of the connecting end of the iodine cap body is provided with a first internal thread. The surface of the human end connector body is provided with a third fastening part, the connecting end of the human end connector body is provided with a second groove, and the inner sidewall of the connecting end of the human end connector body is provided with a second internal thread. The surface of the protective cover is provided with a fourth fastening part, the connecting end of the protective cover is provided with a second threaded connector, and the other end of the second threaded connector is provided with a positioning block. The external short pipe body is threadedly connected to the iodine cap body or the human end connector body, and the protective cover is threadedly connected to the human end connector body or the iodine cap body.

[0010] The housing assembly includes a base, a limiting plate at the middle of one end of the base, a top cover hinged to one side of the base, a seat cover on one side of the upper part of the base, a limiting component at the bottom inside the seat cover, a handle rotatably mounted on one side of the base, a cover buckle at the middle of one side of the base, a fastener at the middle of one side of the top cover, and a connector clamping component on one side of the upper part of the seat cover. When closed, the cover buckle is engaged with the fastener, and the top cover drives the connector clamping component to engage with the upper part of the connector clamping assembly.

[0011] The connector clamping assembly includes an external short tube clamping mechanism located on one side of the seat cover, with the external short tube body located inside the external short tube clamping mechanism. A protective cover clamping mechanism is located on the other side of the seat cover, with the protective cover body located inside the protective cover clamping mechanism. An iodine cap clamping mechanism is located on one side of the connector switching mechanism, with the iodine cap body located inside the iodine cap clamping mechanism. A human end connector clamping mechanism is located on the other side of the connector switching mechanism, with the human end connector body located inside the human end connector clamping mechanism.

[0012] The outer casing assembly receives power, the top cover drives the connector adjustment mechanism to move, and synchronously drives the connector clamping assembly to move. The handle drives the connector switching mechanism and the pipeline guiding mechanism to move through the transmission mechanism.

[0013] As a preferred embodiment of the present invention, the external short tube clamping mechanism includes a first rotation guide and a second rotation guide disposed on the seat cover. A guide retainer is disposed between the first rotation guide and the second rotation guide. A clamping seat is disposed inside the guide retainer. The clamping seat is slidably connected to the other side of the first rotation guide. Clamping members are symmetrically disposed on both sides of the upper part of the clamping seat. A connecting member is disposed at the bottom of the guide retainer. A first ejection hole is opened at the bottom of the clamping seat.

[0014] As a preferred embodiment of the present invention, the protective cover clamping mechanism includes a first limiting member, mounting holes are provided on both sides of the first limiting member, a spring positioning post is provided at the middle position of one end of the first limiting member, a first limiting surface is provided at the middle position of the other end of the first limiting member, a second limiting surface is provided on the upper part of the first limiting member, and a second ejection hole is provided through the connection position of the first limiting surface and the second limiting surface.

[0015] As a preferred embodiment of the present invention, the iodine cap clamping mechanism includes a second limiting member, a first placement cavity is provided at the end of the second limiting member, first protrusions are symmetrically provided on both sides of the end of the first placement cavity, first protrusions are symmetrically provided on both sides of the first placement cavity, a third ejection hole is provided inside the first placement cavity, and a first connecting hole is provided at the middle position of the other end of the second limiting member.

[0016] As a preferred embodiment of the present invention, the human end connector clamping mechanism includes a third limiting member, a second placement cavity is provided at the end of the third limiting member, second protrusions are symmetrically provided on both sides of the end of the second placement cavity, second protrusions are symmetrically provided on both sides of the second placement cavity, a fourth ejection hole is provided inside the second placement cavity, and a second connecting hole is provided at the middle position of the other end of the third limiting member.

[0017] As a preferred embodiment of the present invention, the transmission mechanism includes a first transmission shaft rotatably mounted inside one side of the base, the end of the handle being disposed at the end of the first transmission shaft, the other end of the first transmission shaft being disposed with a first bevel gear, a second transmission shaft being disposed at one end inside the base, the end of the second transmission shaft being mounted with a second bevel gear, the first bevel gear meshing with the second bevel gear, a grooved wheel being disposed on the upper part of the second transmission shaft, a first incomplete gear being disposed at the other end of the second transmission shaft, a third transmission shaft being disposed inside the base near the upper part of the grooved wheel, the end of the third transmission shaft being disposed with a second incomplete gear, the first incomplete gear meshing with the second incomplete gear, and the grooved wheel being disposed with a connecting groove.

[0018] As a preferred embodiment of the present invention, the connector switching mechanism includes a first mounting base disposed on the upper part of the third drive shaft, a protective cover disposed on one side of the first mounting base, a retainer disposed on the third drive shaft, a connecting block disposed at the bottom of the retainer, the connecting block disposed in a connecting groove, a sun gear disposed at the middle position inside the first mounting base, intermediate gears symmetrically disposed on both sides inside the first mounting base, planetary gears symmetrically disposed at both ends of the first mounting base, the intermediate gears meshing with the sun gear and the planetary gear respectively, adapters disposed at both ends of the first mounting base near the planetary gears, a connecting pin disposed on one side of the adapter, an iodine cap clamping mechanism disposed on one side of the first mounting base via the connecting pin and the adapter, and a human end connector clamping mechanism disposed on the other side of the first mounting base via the connecting pin and the adapter.

[0019] As a preferred embodiment of the present invention, the joint adjustment mechanism includes a second mounting base disposed on one side of the bottom of the base, a drive wheel rotatably mounted on one end of the inner side of the upper cover near the second mounting base, transmission gears rotatably mounted on both sides of the bottom of the second mounting base, a conversion gear rotatably mounted at the middle position of the bottom of the second mounting base, and guide gears rotatably mounted on both sides of the upper part of the second mounting base. The guide gears are provided with notches. One transmission gear meshes with the drive wheel, the conversion gear and a guide gear respectively, and another transmission gear meshes with the conversion gear and another guide gear respectively. A crank is provided on one side of the upper cover and the base, and a connecting rod is hinged between the crank and the connecting member.

[0020] As a preferred embodiment of the present invention, the pipeline guiding mechanism includes a rotating rod that is snapped onto the end of the third transmission shaft. A protruding post is provided on one side of one end of the rotating rod. A movable part is provided at one end of the base. A limiting groove that matches the movement trajectory corresponding to the position of the limiting plate is provided at the middle position inside the movable part. A sliding part is provided on the upper part of the movable part. A sliding part is slidably connected to the upper part of the movable part. A third connecting hole is provided at the bottom of the sliding part. The protruding post is provided inside the third connecting hole.

[0021] As a preferred embodiment of the present invention, the ejection mechanism includes a push block disposed on one side inside the base, a transmission rod disposed on one side of the bottom inside the base, a connecting rod hinged together between the push block and the transmission rod, an ejection member slidably connected to the upper part of one end of the transmission rod, and the top of the ejection member respectively engaging with the first ejection hole, the second ejection hole, the third ejection hole and the fourth ejection hole.

[0022] Compared with the prior art, the beneficial effects of the present invention are: 1. The entire connector operating space is enclosed by a closed shell assembly. With the help of a single-handle input bevel gear-grooving gear linkage transmission mechanism, the mechanical structure synchronously completes the turning and repositioning of all connectors. The operator's hands do not come into contact with the sterile connection end of the connector throughout the process, cutting off the contamination path from the operation path and significantly reducing the risk of peritonitis. At the same time, the multiple manual disassembly and assembly steps are simplified into a few mechanical operation steps, greatly reducing the cumbersome operation and the time spent on a single fluid change.

[0023] 2. Through the sequential engagement of the Geneva mechanism and the incomplete gear, the connector switching mechanism with planetary gear system is driven to complete axial translation and 180° position switching in sequence while keeping the connector posture unchanged. In conjunction with the connector adjustment mechanism linked to the upper cover, multiple sets of connectors are screwed in and out simultaneously. The device can be operated in the forward direction to connect the external short tube to the human end connector, or in the reverse direction to separate the connector, reconnect the iodine cap to the external short tube, and reinstall the protective cap on the human end connector, completely covering all connector conversion steps in peritoneal dialysis fluid exchange.

[0024] 3. Through a standardized clamping mechanism that adapts to the shape of external short tubes, iodine caps, human end connectors, and protective caps, and adopts a threaded interface adaptation design consistent with clinically common consumables, it can directly clamp commercially available mainstream specifications of peritoneal dialysis tubing and connector consumables without the need for custom-made special connectors. Patients do not need to replace their original dialysis fluid and tubing system, effectively overcoming the adaptation limitations of existing solutions and reducing usage costs. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the pipeline assembly structure in this invention; Figure 2 This is a front view of the housing assembly in this invention; Figure 3 This is a rear view of the housing assembly in this invention; Figure 4 This is a schematic diagram of the internal structure of the base in this invention; Figure 5 This is a schematic diagram of the external short pipe clamping mechanism in this invention; Figure 6 This is a schematic diagram of the protective cover clamping mechanism in this invention; Figure 7 This is a schematic diagram of the structure of the iodine cap clamping mechanism and the human body end connector clamping mechanism in this invention; Figure 8 This is a schematic diagram showing the connection between the external short tube body, the iodine cap body, the external short tube clamping mechanism, and the iodine cap clamping mechanism in this invention. Figure 9 This is a schematic diagram showing the connection between the human body end connector body, the protective cover and the protective cover clamping mechanism, and the human body end connector clamping mechanism in this invention. Figure 10 This is a top view of the transmission mechanism and ejection mechanism in this invention. Figure 11 This is a schematic diagram showing the connection between the transmission mechanism and the joint switching mechanism in this invention; Figure 12 This is a schematic diagram of the cooperation structure between the limiting member and the cage in this invention; Figure 13 This is a schematic diagram of the engagement state of the first incomplete gear and the second incomplete gear in this invention. Figure 14 This is a schematic diagram of the mounting structure of the sun gear and intermediate gear in this invention; Figure 15 This is a schematic diagram of the connection structure between the iodine cap clamping mechanism and the connector switching mechanism in this invention; Figure 16 This is a schematic diagram of the rotating state of the connector switching mechanism in this invention; Figure 17 This is a schematic diagram of the rotating state of the joint adjustment mechanism in this invention; Figure 18 This is a schematic diagram of the linkage structure between the upper cover and the external short tube clamping mechanism in this invention; Figure 19 This is a schematic diagram showing the connection state between the iodine cap clamping mechanism and the guide gear in this invention; Figure 20 This is a schematic diagram of the pipeline guiding mechanism in this invention; Figure 21 This is a schematic diagram of the movement state of the moving component in this invention; Figure 22 This is a schematic diagram of the ejection mechanism in this invention. Figure 23 This is a schematic diagram of the moving path of the connecting block in this invention; Figure 24 This is a schematic diagram of the separation and connection actions of the connector switching mechanism in this invention.

[0026] In the diagram: 1. External short tube body; 11. First fastening part; 12. First threaded connector; 2. Iodine cap body; 21. Second fastening part; 22. First groove; 23. First internal thread; 3. Human end connector body; 31. Third fastening part; 32. Second groove; 33. Second internal thread; 4. Protective cover; 41. Second threaded connector; 42. Fourth fastening part; 43. Positioning block; 5. Outer shell assembly; 51. Top cover; 52. Base; 521. Limiting plate; 522. First inclined plane; 523. First plane; 524. Second plane; 53. Seat cover; 531. Limiting element; 54. Handle; 55. Cover buckle; 56. Fastener; 57. Connector clamping element; 6. Connector clamping Components; 61. External short tube clamping mechanism; 611. Clamping seat; 612. Clamping element; 613. Guide retainer; 614. First rotation guide; 615. Second rotation guide; 616. Connector; 617. First ejection hole; 62. Protective cover clamping mechanism; 621. First limiting element; 622. First limiting surface; 623. Second limiting surface; 624. Second ejection hole; 625. Mounting hole; 626. Spring positioning post; 63. Iodine cap clamping mechanism; 631. Second limiting element; 632. First placement cavity; 633. First protrusion; 634. First protrusion; 635. Third ejection hole; 636. First connecting hole; 64. Human body end connector clamping mechanism; 641. Third 642. Limiting component; 643. Second placement cavity; 644. Second protrusion; 645. Second protrusion; 646. Fourth ejection hole; 647. Second connecting hole; 7. Transmission mechanism; 71. First drive shaft; 72. First bevel gear; 73. Second bevel gear; 74. Second drive shaft; 75. Geneva wheel; 76. First incomplete gear; 761. First arc portion; 762. First gear portion; 77. Second incomplete gear; 771. Second arc portion; 772. Second gear portion; 78. Third drive shaft; 79. Connecting groove; 8. Connector switching mechanism; 81. First mounting base; 82. Protective cover; 83. Cage; 831. Connecting block; 84. Sun gear; 85. Intermediate gear; 86. 87. Planetary gear; 871. Adapter; 872. Cylindrical part; 873. Mounting part; 88. Connecting pin; 884. Connecting part; 885. Connecting body; 886. Fastening body; 9. Joint adjustment mechanism; 97. Second mounting base; 98. Driving wheel; 99. Transmission gear; 90. Conversion gear; 91. Guide gear; 92. Notch; 93. Crank; 94. Connecting rod; 95. Guide gear; 96. Notch; 97. Crank; 98. Connecting rod; 10. Pipeline guiding mechanism; 108. Rotating rod; 109. Protruding column; 100. Sliding part; 100. Third connecting hole; 101. Moving part; 102. Sliding part; 103. Limiting groove; 103. Ejection mechanism; 104. Pressing block; 105. Connecting rod; 106. Transmission rod; 107. Ejector. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example Please see Figure 1-24 The present invention provides the following technical solutions: A connector conversion device for peritoneal dialysis includes a tubing assembly and a conversion assembly. The conversion assembly includes a housing assembly 5 and a connector clamping assembly 6 disposed inside the housing assembly 5 for placing the tubing assembly. The lower part of the connector clamping assembly 6 is provided with a transmission mechanism 7 and a connector adjusting mechanism 9. The end of the transmission mechanism 7 is provided with a connector switching mechanism 8 and a tubing guiding mechanism 10. An ejection mechanism 13 is provided on one side inside the housing assembly 5.

[0029] The piping assembly includes an external short pipe body 1, an iodine cap body 2, a human end connector body 3, and a protective cover 4. The external short pipe body 1 has a first fastening part 11 on its surface and a first threaded connector 12 at its end. The iodine cap body 2 has a second fastening part 21 on its surface and a first groove 22 at its connecting end. The inner wall of the connecting end of the iodine cap body 2 has a first internal thread 23. The human end connector body 3 has a third fastening part 31 on its surface and a second groove 32 at its connecting end. The inner wall of the connecting end of the human end connector body 3 has a second internal thread 33. The protective cover 4 has a fourth fastening part 42 on its surface. The first threaded connector 12 and the second threaded connector 41 are provided with a second threaded connector 41. The other end of the second threaded connector 41 is provided with a positioning block 43. The external short tube body 1 is threadedly connected to the iodine cap body 2 and the human end connector body 3 respectively. The protective cover 4 is threadedly connected to the human end connector body 3 and the iodine cap body 2 respectively. The ends of the external short tube body 1 and the human end connector body 3 are connected to external pipelines. For example, the first threaded connector 12 and the second threaded connector 41 can adopt double-headed trapezoidal threads. Furthermore, according to the starting position of the thread head corresponding to the external short tube body 1, the starting position of the thread head of the iodine cap body 2 and the human end connector body 3 is designed so that they separate or engage when they rotate 180 degrees relative to the external short tube body 1.

[0030] At the same time, the relative posture must be maintained so that after the iodine cap body 2 and the human body end connector body 3 are tightened with the external short tube body 1, the second fastening part 21, the third fastening part 31 and the first fastening part 11 are parallel. Therefore, the external short tube body 1 can be completely screwed together or separated by rotating 180° relative to the iodine cap body 2 and the human body end connector body 3.

[0031] After the iodine cap body 2 and the human body end connector body 3 are tightened with the protective cover body 4, the second fastening part 21, the third fastening part 31 and the fourth fastening part 42 are parallel. Therefore, the external short tube body 1 can be completely screwed in or separated from the iodine cap body 2 and the human body end connector body 3 by rotating 90° relative to each other, which is perfectly matched with the rotation angle of the mechanism.

[0032] The outer casing assembly 5 includes a base 52, a limiting plate 521 installed at the middle position of one end of the base 52, a top cover 51 hinged to one side of the base 52, a seat cover 53 provided on the upper side of the base 52, a limiting member 531 provided at the bottom inside the seat cover 53, a handle 54 rotatably installed on one side of the base 52, a cover buckle 55 provided at the middle position of one side of the base 52, a fastener 56 provided at the middle position of one side of the top cover 51, and a connector clamping member 57 provided on the upper side of the seat cover 53. Further, the connector clamping member 57 provides guidance and clamping for the connector during the connection or separation process, preventing the connector from popping out of the connector clamping assembly 6 during this process. When closed, the cover buckle 55 is engaged with the fastener 56, and the top cover 51 drives the connector clamping member 57 to be engaged with the upper part of the connector clamping assembly 6.

[0033] The connector clamping assembly 6 includes an external short tube clamping mechanism 61 disposed on one side of the seat cover 53, with the external short tube body 1 snapped into the external short tube clamping mechanism 61. A protective cover clamping mechanism 62 is disposed on the other side of the seat cover 53, with the protective cover body 4 snapped into the protective cover clamping mechanism 62. An iodine cap clamping mechanism 63 is disposed on one side of the connector switching mechanism 8, with the iodine cap body 2 snapped into the iodine cap clamping mechanism 63. A human end connector clamping mechanism 64 is disposed on the other side of the connector switching mechanism 8, with the human end connector body 3 snapped into the human end connector clamping mechanism 64.

[0034] The outer casing assembly 5 receives power, and the upper cover 51 drives the connector adjustment mechanism 9 to move, which in turn drives the connector clamping assembly 6 to move. The handle 54 drives the connector switching mechanism 8 and the pipeline guiding mechanism 10 to move through the transmission mechanism 7. Furthermore, the iodine cap clamping mechanism 63 and the human end connector clamping mechanism 64 are located at the end of the connector switching mechanism 8. The connector switching mechanism 8 drives the iodine cap clamping mechanism 63 and the human end connector clamping mechanism 64 to move and rotate, thereby realizing connector switching.

[0035] In a specific embodiment of the invention, the entire connector operating space is enclosed by a closed outer shell assembly. Combined with a single-handle input bevel gear-grooving gear linkage transmission mechanism, the mechanical structure synchronously completes the screwing and repositioning actions of all connectors. The operator's hands do not come into contact with the sterile connection end of the connector throughout the entire process, cutting off the contamination path from the operation path and significantly reducing the risk of peritonitis. Simultaneously, the multi-step manual disassembly and assembly is simplified to a few mechanical operation steps, greatly reducing operational complexity and the time spent on a single fluid change. Through the sequential coordination of the grooved gear mechanism and the incomplete gear, the connector switching mechanism with planetary gear train sequentially completes axial translation and 180° position switching while maintaining the connector posture. This is coordinated with the connector adjustment linked to the top cover. The device simultaneously screws in and out multiple sets of connectors; it can operate in the forward direction to connect the external short tube to the human end connector, and in the reverse direction to separate the connectors, reconnect the external short tube to the iodine cap, and reinstall the protective cap on the human end connector, fully covering all connector conversion steps in peritoneal dialysis fluid exchange. It uses standardized clamping mechanisms that adapt to the shapes of the external short tube, iodine cap, human end connector, and protective cap, and adopts a threaded interface design consistent with commonly used clinical consumables. It can directly clamp commercially available mainstream specifications of peritoneal dialysis tubing and connectors without the need for custom-made connectors. Patients do not need to change their existing dialysis fluid and tubing system, effectively overcoming the compatibility limitations of existing solutions and reducing usage costs.

[0036] Please refer to the details. Figure 4 , Figure 5 and Figure 8 As shown, the external short tube clamping mechanism 61 includes a first rotation guide 614 and a second rotation guide 615 mounted on the seat cover 53. A guide retainer 613 is rotatably mounted between the first rotation guide 614 and the second rotation guide 615. A clamping seat 611 is provided inside the guide retainer 613. One end of the clamping seat 611 is located inside the guide retainer 613, and the other end extends to the outside of the guide retainer 613, so that the clamping seat 611 can slide back and forth relative to the guide retainer 613 and be rotated around the axis by the guide retainer 613. The clamping seat 611 is slidably connected to the other side of the first rotation guide 614. Clamping members 612 are symmetrically arranged on both sides of the upper part of the clamping seat 611. A connector 616 is provided at the bottom of 613, and a first ejection hole 617 is provided at the bottom of the clamping seat 611. Furthermore, the first fastening part 11 is engaged between the two clamping parts 612, and the guide retainer 613 fits the outer contour of the rear part of the clamping seat 611, so that the clamping seat 611 can slide back and forth relative to the guide retainer 613 along the axis. Furthermore, the clamping part 612 is an elastic snap-fit ​​structure, and the inner side of the two clamping parts 612 is provided with a slot that matches the shape of the first fastening part 11. When the external short pipe body 1 is installed, the clamping parts are opened, and the slot is clamped by the elastic restoring force of the clamping parts 612, which restricts the circumferential rotation and axial movement of the joint, and ensures that the joint and the clamping mechanism rotate synchronously when the thread is tightened.

[0037] In this embodiment, both sides of the guide retainer 613 are provided with protrusions, and both sides of the first rotation guide 614 and the second rotation guide 615 are provided with grooves that are adapted to the movement trajectory of the protrusions, thereby improving the rotational stability of the guide retainer 613.

[0038] Please refer to the details. Figure 4 , Figure 6 and Figure 9 As shown, the protective cover clamping mechanism 62 includes a first limiting member 621. Mounting holes 625 are provided on both sides of the first limiting member 621. A spring positioning post 626 is provided at the middle position of one end of the first limiting member 621. Further, a return spring is sleeved on the spring positioning post 626, and the other end of the return spring abuts against the inner wall of the seat cover 53. A first limiting surface 622 is provided at the middle position of the other end of the first limiting member 621. A second limiting surface 623 is provided on the upper part of the first limiting member 621. A second ejection hole 624 is provided through the connection position of the first limiting surface 622 and the second limiting surface 623.

[0039] In this embodiment: the positioning block 43 at the end of the protective cover 4 is engaged inside the second limiting surface 623, and the fourth fastening part 42 is engaged inside the first limiting surface 622.

[0040] Please refer to the details. Figure 4 Figure 7 and Figure 8 The iodine cap clamping mechanism 63 includes a second limiting member 631. The end of the second limiting member 631 is provided with a first placement cavity 632. The two sides of the end of the first placement cavity 632 are symmetrically provided with first protrusions 633. The two sides of the first placement cavity 632 are symmetrically provided with first protrusions 634. The interior of the first placement cavity 632 is provided with a third ejection hole 635. The middle position of the other end of the second limiting member 631 is provided with a first connecting hole 636.

[0041] In this embodiment: the first groove 22 on the surface of the iodine cap body 2 is engaged with the inside of the first protrusion 633, the second fastening part 21 is engaged with the inside of the first placement cavity 632, and the first protrusion 634 is engaged with the inside of the connector adjustment mechanism 9.

[0042] Please refer to the details. Figure 4 , Figure 7 and Figure 9The human end connector clamping mechanism 64 includes a third limiting member 641. The end of the third limiting member 641 is provided with a second placement cavity 642. The two sides of the end of the second placement cavity 642 are symmetrically provided with second protrusions 643. The two sides of the second placement cavity 642 are symmetrically provided with second protrusions 644. The interior of the second placement cavity 642 is provided with a fourth ejection hole 645. The middle position of the other end of the third limiting member 641 is provided with a second connecting hole 646.

[0043] In this embodiment: the second groove 32 of the human end connector body 3 is engaged inside the second protrusion 643, the third fastening part 31 is engaged inside the second placement cavity 642, the second protrusion 644 is engaged inside the connector adjustment mechanism 9, and the second connecting hole 646 is used to place the pipe connected to the human end connector body 3.

[0044] Please refer to the details. Figure 10 , Figure 11 and Figure 13 As shown, the transmission mechanism 7 includes a first transmission shaft 71 rotatably mounted inside one side of the base 52. The end of the handle 54 is mounted on the end of the first transmission shaft 71. A first bevel gear 72 is mounted on the other end of the first transmission shaft 71. A second transmission shaft 74 is rotatably mounted inside one end of the base 52. A second bevel gear 73 is mounted on the end of the second transmission shaft 74. The first bevel gear 72 meshes with the second bevel gear 73. A grooved wheel 75 is provided on the upper part of the second transmission shaft 74. A first incomplete gear 76 is provided on the other end of the second transmission shaft 74. Specifically, the first incomplete gear 76 is composed of a three-quarters first arc portion 761 and a one-quarter first gear portion 762. The grooved wheel 75 is located inside the base 52 near the groove. A third drive shaft 78 is provided at the upper part of the wheel 75. A second incomplete gear 77 is provided at the end of the third drive shaft 78. The second incomplete gear 77 is composed of a second arc portion 771 and a second gear portion 772. The first incomplete gear 76 meshes with the second incomplete gear 77. The grooved wheel 75 is provided with a connecting groove 79. Further, the shape of the connecting groove 79 is composed of a first sliding portion at the beginning, a middle portion, a second sliding portion and an end portion. The beginning and end portions are close to each other and located on one side of the first arc portion 761. One end of the first sliding portion and the second sliding portion are connected to the beginning and end portions respectively, and the other end is connected to both ends of the middle portion. The direction of the middle portion is opposite to the direction of the beginning and end portions, and the trajectory is encircling.

[0045] In this embodiment: the handle 54 can drive the first transmission shaft 71 to rotate, and then the first bevel gear 72 drives the second transmission shaft 74 to rotate through the second bevel gear 73. At the same time, the first incomplete gear 76 drives the third transmission shaft 78 to rotate through the second incomplete gear 77, thereby realizing the intermittent rotation of the second incomplete gear 77 and the transmission shaft 78.

[0046] Furthermore, such as Figure 13As shown, the first incomplete gear 76 rotates counterclockwise around its axis. Figure 13 a is the initial state. When rotation begins, in stage S1, the first arc portion 761 meshes with the second arc portion 771, and the second incomplete gear 77 maintains its relative posture unchanged. Figure 13 b、 Figure 13 c. When the first gear 762 and the second gear 772 come into contact and begin to mesh, at the start of stage S2, the second incomplete gear 77 rotates clockwise around the axis. Figure 13 d, the first gear section 762 and the second gear section 772 gradually disengage, and stage S3 is about to begin; Figure 13 In stage S3, the first arc portion 761 meshes with the second arc portion 771, and the second incomplete gear 77 maintains its relative posture unchanged, and relative to... Figure 13 In the initial state of a, the second incomplete gear 77 rotates 180° clockwise.

[0047] In this embodiment, during stage S2, the second bevel gear 73, the grooved wheel 75, and the first incomplete gear 76 rotate at an angle of 90°, and the transmission ratio between the first incomplete gear 76 and the second incomplete gear 77 is 1:2. Therefore, when the gears mesh, the first incomplete gear 76 rotates 90°, driving the second incomplete gear 77 to rotate 180°.

[0048] Please refer to the details. Figure 4 , Figure 11 , Figure 12 , Figure 14 , Figure 15 as well as Figure 16As shown, the connector switching mechanism 8 includes a first mounting base 81 mounted on the upper part of the third drive shaft 78. Further, the first mounting base 81 can rotate with the third drive shaft 78. A protective cover 82 is provided on one side of the first mounting base 81. A retainer 83 is provided on the third drive shaft 78, and a connecting block 831 is provided at the bottom of the retainer 83. The connecting block 831 is slidably connected in the connecting groove 79. A sun gear 84 is provided at the middle position inside the first mounting base 81. Intermediate gears 85 are symmetrically rotatably mounted on both sides inside the first mounting base 81. Planetary gears 86 are symmetrically provided at both ends of the first mounting base 81. The intermediate gears 85 mesh with the sun gear 84 and the planetary gears 86 respectively. Adapters 87 are provided at both ends of the first mounting base 81 near the planetary gears 86. A connecting pin 88 is provided on one side of the first mounting base 81. The iodine cap clamping mechanism 63 is set on one side of the first mounting base 81 through the connecting pin 88 and the adapter 87. The human end connector clamping mechanism 64 is set on the other side of the first mounting base 81 through the connecting pin 88 and the adapter 87. The sun gear 84 is fixedly connected to the retainer 83. Under the constraint of the limiting member 531, the retainer 83 can only translate along the axial direction and cannot rotate circumferentially. Therefore, the sun gear 84 always remains stationary. The transmission ratio between the planetary gear 86 and the sun gear 84 is 1:1. When the first mounting base 81 revolves 180° with the third transmission shaft 78, the planetary gear 86 meshes with the sun gear 84 and rotates 180°, driving the adapter 87 and the clamping mechanism to rotate 180° in the opposite direction, so that the spatial posture of the clamping mechanism remains unchanged.

[0049] In this embodiment: as Figure 13 and Figure 24 As shown, when the grooved wheel 75 rotates, the connecting block 831 slides within the connecting groove 79, causing the connector switching mechanism 8 to translate. For example, when the handle 54 rotates clockwise around the first drive shaft 71, the grooved wheel 75 rotates counterclockwise around the second drive shaft 74 via the transmission of bevel gears 72 and 73. The rotation of the grooved wheel 75 proceeds from S1 to S2 to S3, and the connector switching mechanism 8 moves forward to the maximum distance L1, remains stationary in stage S2, and returns to the initial position from the maximum distance position in stage S3.

[0050] Further, see Figure 14 The internal structure of the connector switching mechanism 8 is a planetary gear transmission mechanism. The sun gear 84 is fixedly connected to the cage 83. The intermediate gear 85 and planet gears 86 are mounted on the first mounting base 81 and can rotate around their respective axes. The first mounting base 81 has a D-shaped hole that mates with the D-shaped surface at one end of the third transmission shaft 78, allowing the first mounting base 81 and the second incomplete gear 77 to rotate synchronously.

[0051] Furthermore, such as Figure 15As shown, the planetary gear 86 has a threaded hole for fixed connection with the adapter 87. One end of the connecting pin 88 has a fastener 883, which can mate with the third ejector hole 635 on the iodine cap clamping mechanism 63, and is connected through the threaded hole on the connecting pin 88, so that the iodine cap clamping mechanism 63 and the connecting pin 88 are relatively fixed. The other end of the connecting pin 88 has a connecting part 881 and a connecting body 882, which can mate with the cylindrical part 871 and the mounting part 872 respectively. Through this structure, the iodine cap clamping mechanism 63 can rotate around the axis and provide a certain amount of damping, so that the iodine cap clamping mechanism 63 maintains a constant posture and does not slip relative to each other during the movement and rotation of the connector switching device 8.

[0052] Furthermore, such as Figure 16 a is the connector switching mechanism 8 in the open state. Figure 16 b represents the iodine cap clamping mechanism 63 and the human body end connector clamping mechanism 64 rotating 90° clockwise around their respective axes. Figure 16 c. Figure 16 d is the first mounting base 81, which rotates clockwise under the drive of the third transmission shaft 78, and drives the iodine cap clamping mechanism 63 and the human body end connector clamping mechanism 64 to rotate relative to each other around the shaft. Figure 16 e. The positions of the iodine cap clamping mechanism 63 and the human body end connector clamping mechanism 64 are interchanged to complete the connector switching. Figure 16 f is a schematic diagram showing the opening of the upper cover 51 after the sequential connector switching is completed. Figure 16 a. The position switch between the iodine cap body 2 and the human body connector body 3 has been achieved.

[0053] Furthermore, when the iodine cap clamping mechanism 63 and the human body end connector clamping mechanism 64 rotate relative to each other around the axis, their relative postures do not change. In order to achieve this effect, the transmission ratio of the sun gear 84 and the planet gear 86 is 1:1. As mentioned above, the rotation angle of the incomplete gear 77 is 180°. Through the transmission of the shaft 78, the rotation angle of the first mounting base 81 is also 180°.

[0054] Furthermore, such as Figure 23 Here is a planar unfolded view of slot 79, taking the rotation of handle 54 from left to right as an example: The handle 54 starts to rotate, which drives the second bevel gear 73, the second drive shaft 74, the grooved wheel 75, and the first incomplete gear 76 to rotate through the first bevel gear 72.

[0055] First of all Figure 23 In stage S1, the Geneva wheel 75 drives the joint switching mechanism 8 to move forward along the axis via the first sliding part of the Geneva wheel 75. At this time, the distance is L1, and the first incomplete gear 76 and the second incomplete gear 77 are in meshing state. Figure 13 ab, circular arc engagement, the joint switching mechanism 8 only moves axially at this time, without flipping; like Figure 23 In stage S2, the Geneva wheel 75 and the first incomplete gear 76 continue to rotate, and the joint switching mechanism 8 moves axially to its farthest point and stops moving axially. The first gear section 762 and the second gear section 772 begin to mesh, and the transmission is transmitted via the third drive shaft 78, causing the joint switching mechanism 8 to flip in the middle section. The meshing state of the first incomplete gear 76 and the second incomplete gear 77 corresponds to... Figure 13 The state of the CD, connector switching mechanism 8 at this stage corresponds to... Figure 16 bcde.

[0056] like Figure 23 In the middle S2 stage, the rotation angle of the grooved wheel 75 and the first incomplete gear 76 is 90 degrees. The transmission ratio of the first incomplete gear 76 and the second incomplete gear 77 is 1:2. Therefore, when the second incomplete gear 77 rotates 180 degrees, it is transmitted to the gear train structure of the joint switching mechanism 8, so that the joint switching mechanism 8 can be rotated 180 degrees.

[0057] like Figure 23 In stage S3, the joint switching mechanism 8 completes its flipping, the joints exchange positions, the grooved wheel 75 and the first incomplete gear 76 continue to rotate, the joint switching mechanism 8 moves axially, the joints move closer to each other, and the meshing state of the first incomplete gear 76 and the second incomplete gear 77 corresponds. Figure 13 d, the circular arc segment engages, and the relative posture of the joint switching mechanism 8 remains unchanged.

[0058] If handle 54 is turned from right to left, the process is the opposite of the above.

[0059] Please refer to the details. Figure 17 , Figure 18 , Figure 19As shown, the connector adjustment mechanism 9 includes a second mounting base 91 disposed on one side of the bottom of the base 52. A drive wheel 92 is rotatably mounted on the inner side of the upper cover 51 near the end of the second mounting base 91. Transmission gears 93 are symmetrically rotatably mounted on both sides of the bottom of the second mounting base 91. A conversion gear 94 is rotatably mounted at the middle position of the bottom of the second mounting base 91. Guide gears 95 are symmetrically rotatably mounted on both sides of the upper part of the second mounting base 91. The guide gears 95 are provided with notches 951. Further, an arc-shaped protrusion is provided on the upper part of the second mounting base 91, and the two guide gears 95 are slidably mounted on the second mounting base 91 through the arc-shaped protrusion. One of the transmission gears 93 meshes with the drive gear 92, the conversion gear 94 and a guide gear 95 respectively, and the other transmission gear 93 meshes with the conversion gear 94 and another guide gear 95 respectively. The upper cover 51 and the base 52 are provided with a crank 96 on one side. The crank 96 and the connecting member 616 are connected by a connecting rod 97. Furthermore, the connecting rod 97 pulls the connecting member 616 and the guide retainer 613 to move along the arc groove of the first and second rotation guides, so that the guide retainer 613 rotates circumferentially, thereby driving the clamping seat 611 and the external short tube body 1 to rotate synchronously, realizing the screwing in and screwing out of the thread.

[0060] In this embodiment: as Figure 24 a. Open the device cover 51, place the external short tube body 1 connected to the iodine cap body 2 and the human body end connector body 3 connected to the protective cover body 4 into the corresponding connector clamping mechanism, then lower the connector clamping piece 57, close the cover 51, and fasten the cover buckle 55.

[0061] like Figure 24 b. Crank 96, connected to the upper cover 51, drives connecting rod 97 to move, and drive wheel 92 drives transmission gear 93 to rotate. Thus, viewed from direction A in the figure, the external short tube body 1 rotates 90° counterclockwise, and the human end connector body 3 and iodine cap body 2 each rotate 90° clockwise around their respective axes. Therefore, the human end connector body 3 and the protective cover body 4 rotate 90° clockwise relative to each other, achieving separation. The external short tube body 1 and the iodine cap body 2 rotate 180° clockwise relative to each other, achieving separation.

[0062] Figure 24 c. Turn the handle 54 clockwise as shown in Figure B. Through the internal mechanism transmission, the connector switching mechanism 8 drives the iodine cap clamping mechanism 63, the human body end connector clamping mechanism 64, and the clamped iodine cap body 2 and human body end connector body 3 to move to the right as shown in the figure.

[0063] Figure 24d. When the connector switching mechanism 8 moves to the right to the limit position L1, the handle 54 continues to rotate clockwise. Through the internal mechanism transmission, the connector switching mechanism 8 rotates 180° around the axis X2, and the iodine cap body 2 clamped on it exchanges relative positions with the human end connector body 3.

[0064] Figure 24 After the connector position exchange is completed, continue to rotate the handle 54 clockwise. The connector switching mechanism 8 drives the connector to move to the left. The first protrusion 634 and the second protrusion 644 on the iodine cap clamping mechanism 63 and the human end connector clamping mechanism 64 respectively insert into the notch 951 of the gear 95. At this time, the external short tube body 1 and the human end connector body 3, the protective cover body 4 and the iodine cap body 2 are in contact, and the threads enter the predetermined position.

[0065] Figure 24 f. Open the upper cover 51. The crank 96 and drive wheel 92 connected to the upper cover 51 drive the internal mechanism to move. Observing from direction A in the figure, the external short tube body 1 rotates 90° clockwise, and the human end connector body 3 and the iodine cap body 2 rotate 90° counterclockwise around their respective axes. Thus, the iodine cap body 2 and the protective cover body 4 rotate 90° counterclockwise relative to each other, achieving connection. The external short tube body 1 and the human end connector body 3 rotate 180° counterclockwise relative to each other, achieving connection. At this time, the button 131 can be pressed to push out the connected connector through internal transmission.

[0066] Thus, from Figure 24 a→ Figure 24 b→ Figure 24 c→ Figure 24 d→ Figure 24 e→ Figure 24 f, enables fluid exchange during CAPD treatment, connecting the human body to the dialysis fluid bag.

[0067] After treatment, the patient needs to be separated from the dialysis bag, and a new iodine cap body 2 connected to the protective cap 4 should be installed. At this time, according to... Figure 24 f→ Figure 24 e→ Figure 24 d→ Figure 24 c→ Figure 24 b→ Figure 24 Operate this device in sequence a, and rotate handle 54 counterclockwise as shown in Figure B.

[0068] Please refer to the details. Figure 20 and Figure 21As shown, the pipeline guiding mechanism 10 includes a rotating rod 101 that is snapped onto the end of the third drive shaft 78. A protruding post 1011 is provided on one side of one end of the rotating rod 101. A movable member 103 is provided at one end inside the base 52. A limiting groove 1032 that is adapted to the movement trajectory corresponding to the position of the limiting plate 521 is provided at the middle position inside the movable member 103. A sliding part 1031 is provided on the upper part of the movable member 103. A sliding member 102 is slidably connected to the upper part of the movable member 103. A third connecting hole 1021 is provided at the bottom of the sliding member 102. The protruding post 1011 is provided inside the third connecting hole 1021.

[0069] In this embodiment, the pipeline guiding mechanism 10 is located at one end of the device. When the device is used to switch connectors, the pipeline connected to the human end connector body 3 will move together with the human end connector body 3. If the movement of the pipeline is not restricted, it may jam the device during the movement or cause the human end connector body 3 to fall off from the connector clamping mechanism 64.

[0070] See Figure 20 The rotating rod 101 has a D-shaped hole that mates with the D-shaped surface on the third drive shaft 78, allowing the rotating rod 101 to rotate synchronously with the third drive shaft 78. The protruding post 1011 is connected to the sliding member 102 via the third connecting hole 1021. The sliding member 102 and the moving member 103 are connected via a groove at the lower part of the sliding member 102 and a sliding portion 1031, allowing the sliding member 102 to slide relative to the moving member 103. The limiting groove 1032 mates with the limiting plate 521, allowing the moving member 103 to slide relative to the base 52.

[0071] Furthermore, as the third drive shaft 78 rotates, it drives the rotating rod 101 to rotate. Under the restriction of the sliding member 102 and the upper cover 51 on one side, the pipeline can only move along a specific trajectory.

[0072] Please refer to the details. Figure 22 The ejection mechanism 13 includes a push block 131 disposed on one side inside the base 52. A spring is disposed at the bottom of the push block 131. A transmission rod 133 is disposed on one side of the bottom inside the base 52. A connecting rod 132 is hinged between the push block 131 and the transmission rod 133. An ejector 134 is slidably connected to the upper part of one end of the transmission rod 133. The top of the ejector 134 is respectively connected to the first ejection hole 617, the second ejection hole 624, the third ejection hole 635 and the fourth ejection hole 64. The four ejection holes 645 are engaged, and the ejection mechanism 13 corresponds to the initial clamping position of the device. When the connector switching mechanism 8 returns to the initial position, the first ejection hole 617 of the external short tube clamping mechanism 61 and the third ejection hole 635 of the iodine cap clamping mechanism 63 are respectively coaxially aligned with the two ejection parts 134. Pressing the push block 131 can drive the ejection part 134 to extend upward, and eject the completed external short tube assembly and the iodine cap body 2 from the iodine cap clamping mechanism 63.

[0073] Furthermore, due to the structural constraints of the base 52, the push block 131 can only move up and down. The push block 131 is connected to the connecting rod 132 via a pin, which can slide along the first inclined plane 522. The other end of the connecting rod 132 is connected to the transmission rod 133 via a pin, and the transmission rod 133 can slide along the first plane 523. The other end of the transmission rod 134 has a second inclined plane 1331 at one end that engages with the second inclined plane 1331, and a flat surface at the other end that engages with the second plane 524. When the transmission rod 133 slides to the right, the push rod 134 moves upward under the combined action of the second inclined plane 1331 and the second plane 524. Its protrusion enters the ejection hole on the connector clamping assembly 6, ejecting the connector. After ejection, the spring located outside the protrusion and below the push block 131 resets.

[0074] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A connector conversion device for peritoneal dialysis, characterized in that, The device includes a piping assembly and a conversion assembly. The conversion assembly includes a housing assembly (5) and a connector clamping assembly (6) disposed inside the housing assembly (5) for placing the piping assembly. The lower part of the connector clamping assembly (6) is provided with a transmission mechanism (7) and a connector adjustment mechanism (9). The end of the transmission mechanism (7) is provided with a connector switching mechanism (8) and a piping guide mechanism (10). An ejection mechanism (13) is provided on one side inside the housing assembly (5). The piping assembly includes an external short pipe body (1), an iodine cap body (2), a human end connector body (3), and a protective cover (4). The external short pipe body (1) has a first fastening part (11) on its surface and a first threaded connector (12) at its end. The iodine cap body (2) has a second fastening part (21) on its surface and a first groove (22) at its connecting end. The inner wall of the connecting end of the iodine cap body (2) has a first internal thread (23). The surface of the human end connector body (3) has... The body is provided with a third fastening part (31), the connecting end of the human body connector body (3) is provided with a second groove (32), the inner side wall of the connecting end of the human body connector body (3) is provided with a second internal thread (33), the surface of the protective cover (4) is provided with a fourth fastening part (42), the connecting end of the protective cover (4) is provided with a second threaded connector (41), the external short tube body (1) is threadedly connected to the iodine cap body (2) or the human body connector body (3), and the protective cover (4) is threadedly connected to the human body connector body (3) or the iodine cap body (2). The outer shell assembly (5) includes a base (52), a limiting plate (521) is provided at the middle position of one end of the base (52), a top cover (51) is hinged to one side of the base (52), a seat cover (53) is provided on the upper side of the base (52), a limiting member (531) is provided at the bottom inside the seat cover (53), a handle (54) is rotatably installed on one side of the base (52), a cover buckle (55) is provided at the middle position of one side of the base (52), a fastener (56) is provided at the middle position of one side of the top cover (51), and a connector clamping member (57) is provided on the upper side of the seat cover (53). When closed, the cover buckle (55) is engaged with the fastener (56), and the top cover (51) drives the connector clamping member (57) to engage with the upper part of the connector clamping assembly (6). The connector clamping assembly (6) includes an external short tube clamping mechanism (61) disposed on one side of the seat cover (53), the external short tube body (1) disposed inside the external short tube clamping mechanism (61), a protective cover clamping mechanism (62) disposed on the other side of the seat cover (53), the protective cover body (4) disposed inside the protective cover clamping mechanism (62), an iodine cap clamping mechanism (63) disposed on one side of the connector switching mechanism (8), the iodine cap body (2) disposed inside the iodine cap clamping mechanism (63), a human end connector clamping mechanism (64) disposed on the other side of the connector switching mechanism (8), and the human end connector body (3) disposed inside the human end connector clamping mechanism (64). The outer shell assembly (5) receives power, the upper cover (51) drives the connector adjustment mechanism (9) to move, and synchronously drives the connector clamping assembly (6) to move. The handle (54) drives the connector switching mechanism (8) and the pipeline guiding mechanism (10) to move through the transmission mechanism (7).

2. The peritoneal dialysis connector conversion device according to claim 1, characterized in that, The external short tube clamping mechanism (61) includes a first rotation guide (614) and a second rotation guide (615) disposed on the seat cover (53). A guide retainer (613) is disposed between the first rotation guide (614) and the second rotation guide (615). A clamping seat (611) is disposed inside the guide retainer (613). The clamping seat (611) is slidably connected to the other side of the first rotation guide (614). Clamping members (612) are symmetrically disposed on both sides of the upper part of the clamping seat (611). A connecting member (616) is disposed at the bottom of the guide retainer (613). A first ejection hole (617) is opened at the bottom of the clamping seat (611).

3. The peritoneal dialysis connector conversion device according to claim 1, characterized in that, The protective cover clamping mechanism (62) includes a first limiting member (621), with mounting holes (625) on both sides of the first limiting member (621), a spring positioning post (626) at the middle position of one end of the first limiting member (621), a first limiting surface (622) at the middle position of the other end of the first limiting member (621), a second limiting surface (623) at the upper part of the first limiting member (621), and a second ejection hole (624) through the connection position of the first limiting surface (622) and the second limiting surface (623).

4. The peritoneal dialysis connector conversion device according to claim 1, characterized in that, The iodine cap clamping mechanism (63) includes a second limiting member (631), the end of the second limiting member (631) is provided with a first placement cavity (632), the two sides of the end of the first placement cavity (632) are symmetrically provided with first protrusions (633), the two sides of the first placement cavity (632) are symmetrically provided with first protrusions (634), the inside of the first placement cavity (632) is provided with a third ejection hole (635), and the middle position of the other end of the second limiting member (631) is provided with a first connecting hole (636).

5. The peritoneal dialysis connector conversion device according to claim 1, characterized in that, The human end connector clamping mechanism (64) includes a third limiting member (641), the end of the third limiting member (641) is provided with a second placement cavity (642), the two sides of the end of the second placement cavity (642) are symmetrically provided with second protrusions (643), the two sides of the second placement cavity (642) are symmetrically provided with second protrusions (644), the interior of the second placement cavity (642) is provided with a fourth ejection hole (645), and the other end of the third limiting member (641) is provided with a second connecting hole (646) at the middle position.

6. The peritoneal dialysis connector conversion device according to claim 1, characterized in that, The transmission mechanism (7) includes a first transmission shaft (71) rotatably mounted inside one side of the base (52), the end of the handle (54) is located at the end of the first transmission shaft (71), the other end of the first transmission shaft (71) is provided with a first bevel gear (72), one end of the base (52) is provided with a second transmission shaft (74), the end of the second transmission shaft (74) is provided with a second bevel gear (73), the first bevel gear (72) meshes with the second bevel gear (73), the upper part of the second transmission shaft (74) is provided with a grooved wheel (75), the other end of the second transmission shaft (74) is provided with a first incomplete gear (76), the base (52) is provided with a third transmission shaft (78) located near the upper part of the grooved wheel (75), the end of the third transmission shaft (78) is provided with a second incomplete gear (77), the first incomplete gear (76) meshes with the second incomplete gear (77), and the grooved wheel (75) is provided with a connecting groove (79).

7. A peritoneal dialysis connector conversion device according to claim 6, characterized in that, The connector switching mechanism (8) includes a first mounting base (81) disposed on the upper part of the third drive shaft (78), a protective cover (82) disposed on one side of the first mounting base (81), a retainer (83) disposed on the third drive shaft (78), a connecting block (831) disposed at the bottom of the retainer (83), the connecting block (831) disposed in the connecting groove (79), a sun gear (84) disposed at the middle position inside the first mounting base (81), and intermediate wheels (85) symmetrically disposed on both sides inside the first mounting base (81). Planetary gears (86) are symmetrically arranged at both ends. The intermediate gear (85) meshes with the sun gear (84) and the planetary gears (86) respectively. Adapters (87) are provided at both ends of the first mounting base (81) near the planetary gears (86). A connecting pin (88) is provided on one side of the adapter (87). The iodine cap clamping mechanism (63) is provided on one side of the first mounting base (81) through the connecting pin (88) and the adapter (87). The human end connector clamping mechanism (64) is provided on the other side of the first mounting base (81) through the connecting pin (88) and the adapter (87).

8. The peritoneal dialysis connector conversion device according to claim 1, characterized in that, The joint adjustment mechanism (9) includes a second mounting seat (91) disposed on one side of the bottom of the base (52). A drive wheel (92) is rotatably mounted on one end of the inner side of the upper cover (51) near the second mounting seat (91). Transmission gears (93) are symmetrically rotatably mounted on both sides of the bottom of the second mounting seat (91). A conversion gear (94) is rotatably mounted at the middle position of the bottom of the second mounting seat (91). Guide gears (95) are symmetrically rotatably mounted on both sides of the upper part of the second mounting seat (91). A notch (951) is provided on the guide gear (95). One of the transmission gears (93) meshes with the drive wheel (92), the conversion gear (94), and one of the guide gears (95) respectively. Another transmission gear (93) meshes with the conversion gear (94) and another guide gear (95) respectively. A crank (96) is provided on one side of the upper cover (51) and the base (52). A connecting rod (97) is hinged between the crank (96) and the connecting piece (616).

9. A peritoneal dialysis connector conversion device according to claim 1, characterized in that, The pipeline guiding mechanism (10) includes a rotating rod (101) that is snapped onto the end of the third transmission shaft (78). A protruding post (1011) is provided on one side of one end of the rotating rod (101). A movable part (103) is provided at one end of the base (52). A limiting groove (1032) is provided at the middle position of the movable part (103) that is adapted to the movement trajectory corresponding to the position of the limiting plate (521). A sliding part (1031) is provided on the upper part of the movable part (103). A sliding part (102) is slidably connected to the upper part of the movable part (103). A third connecting hole (1021) is provided at the bottom of the sliding part (102). The protruding post (1011) is provided inside the third connecting hole (1021).

10. A peritoneal dialysis connector conversion device according to claim 2 or 4, characterized in that, The ejection mechanism (13) includes a push block (131) disposed on one side inside the base (52), a transmission rod (133) disposed on one side of the bottom inside the base (52), a connecting rod (132) is hinged between the push block (131) and the transmission rod (133), and an ejector (134) is slidably connected to the upper part of one end of the transmission rod (133). The top of the ejector (134) is respectively engaged with the first ejection hole (617), the second ejection hole (624), the third ejection hole (635) and the fourth ejection hole (645).

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