Peritoneal dialysis external short tube disinfection and replacement auxiliary device

Abstract

The invention relates to the technical field of medical instruments, in particular to a peritoneal dialysis external short tube disinfection and replacement auxiliary device which comprises a disinfection cylinder used for soaking and disinfecting a titanium connector, and a liquid inlet and a liquid outlet are formed in the outer side of the disinfection cylinder; the limiting part is used for limiting the titanium connector, and the limiting part is fixedly mounted on the top surface of the disinfection cylinder; the cleaning part is used for cleaning the surface of the titanium connector, and the cleaning part is arranged in the disinfection cylinder; the lifting part is used for driving the cleaning part to ascend or descend, and the lifting part is fixedly mounted on the bottom surface in the disinfection cylinder; the fixing part is used for fixing the disinfection cylinder on the body of a patient, and the fixing part is arranged on the outer side of the disinfection cylinder; the disinfection cylinder can be fixed to a patient, the patient does not need to keep a fixed posture for a long time, and the burden of the patient is relieved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an auxiliary device for disinfection and replacement of peritoneal dialysis external tubing. Background Technology

[0002] Peritoneal dialysis catheters are permanent access routes for peritoneal dialysis patients, consisting of three parts: the peritoneal dialysis catheter, a titanium connector, and an external short tubing. The standard operating procedure (SOP) for peritoneal dialysis specifies that the external short tubing should be replaced every 6 months, and the titanium connector must be soaked and disinfected during replacement.

[0003] Currently, when changing peritoneal dialysis catheters, the inner tube connected to the patient's body is first clamped with forceps to prevent air from entering. Then, the outer tube is rotated to detach it from the titanium connector of the inner tube. The titanium connector is then placed in a bottle of iodine solution for 20-30 minutes for disinfection. After disinfection, the iodine solution adhering to the titanium connector is wiped dry, and the new outer tube and titanium connector are connected together.

[0004] Such an operation cannot be performed by a single person. It usually requires the patient to be accompanied by a family member or medical staff to complete the operation together. Furthermore, the patient cannot move around freely, and maintaining a fixed posture for a long time is extremely physically demanding for both the patient and the medical staff. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention adopts the following technical solution: A peritoneal dialysis external catheter disinfection and replacement auxiliary device includes a disinfection cylinder for immersing and disinfecting titanium connectors. The disinfection cylinder has an inlet and an outlet on its outer side. A limiting part is used to limit the titanium connector, and the limiting part is fixedly installed on the top surface of the disinfection cylinder; A cleaning section is used to clean the surface of the titanium connector, and the cleaning section is disposed inside the sterilization cylinder; A lifting unit is used to drive the cleaning unit to rise or fall, and the lifting unit is fixedly installed on the bottom surface inside the disinfection cylinder; A fixing part is used to fix the disinfection tube to the patient, and the fixing part is located on the outside of the disinfection tube.

[0006] Furthermore, the outer side of the disinfection cylinder has a connecting groove, and the fixing part includes a clamp plate fixedly installed on the inner wall of the connecting groove. A fixing strap is provided on the inner side of the clamp plate, and an insertion port is provided on the surface of the fixing strap. The clamp plate can be inserted into the insertion port. Both ends of the fixing strap are fixedly connected to extension straps, and the ends of the extension straps are fixedly connected to Velcro, which can be glued together.

[0007] Furthermore, the lifting unit includes a sealed box fixedly installed inside the disinfection cylinder, a rotating motor fixedly installed on the side wall of the sealed box, and a rotating gear fixedly connected to the output end of the rotating motor; A lifting frame is fixedly installed inside the sealed box. The lifting frame has a groove on its side. A lifting rack is slidably connected inside the lifting frame. The lifting rack meshes with the rotating gear. The top surface of the lifting rack is connected to the cleaning part.

[0008] Furthermore, the cleaning unit includes a lifting cylinder fixedly installed on the top surface of the lifting frame. A guide groove is provided inside the lifting cylinder. A rotating rod is rotatably connected to the top surface of the lifting rack. A threaded protrusion is provided on the outside of the rotating rod. The protrusion is adapted to the guide groove, and the rotating rod can rotate along the guide groove. A mounting block is fixedly connected to the top surface of the rotating rod, a support rod is symmetrically fixedly connected to the top surface of the mounting block, a fixing block is fixedly connected to the end of the support rod, and a cleaning brush is uniformly rotatably mounted on the side of the fixing block.

[0009] Furthermore, the connecting groove has a movable groove on its side wall, and an arc-shaped sliding plate is slidably connected in the movable groove. A slot is formed on the side wall of the connecting groove away from the movable groove, and a locking block is fixed on the end face of the arc-shaped sliding plate. The locking block can engage with the slot.

[0010] Furthermore, the surface of the fixing block has cleaning grooves.

[0011] Furthermore, the guide groove is arc-shaped and has a smooth surface.

[0012] Furthermore, the limiting part includes a limiting cylinder fixedly installed on the top surface of the disinfection cylinder, an arc-shaped block is symmetrically fixedly installed inside the limiting cylinder, mounting grooves are symmetrically opened on both sides of the disinfection cylinder, a through groove is opened inside the arc-shaped block, the through groove communicates with the mounting groove, and an arc-shaped groove is opened on the inner side of the mounting groove. A rotating block is rotatably connected in the mounting groove, a spring is fixedly installed in the through groove, a limiting rod is slidably connected in the through groove, the outer side of the limiting rod is fixedly connected to the spring, a protrusion is provided on one side of the rotating block, the protrusion is adapted to the arc groove, the protrusion can abut against the end of the limiting rod away from the titanium connector, and a sealing plate is rotatably connected in the mounting groove.

[0013] Furthermore, a sealing gasket is provided on the top surface of the arc-shaped block, and a limiting groove is opened in the center of the sealing gasket.

[0014] Furthermore, an observation window is fixedly installed on the side of the disinfection cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. It can fix the sterilization tube to the patient, so the patient no longer needs to maintain a fixed posture for a long time, reducing the burden on the patient; 2. It can clean the surface of titanium connectors and reduce stains on the surface of titanium connectors; 3. Reduce the difficulty of operation and alleviate the burden on patients and medical staff. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a three-dimensional structural diagram of an auxiliary device for disinfection and replacement of peritoneal dialysis external catheters provided in an embodiment of the present invention; Figure 2 for Figure 1 A three-dimensional structural schematic diagram of a peritoneal dialysis external catheter disinfection and replacement auxiliary device (another perspective); Figure 3 for Figure 1 The image shown is a top view of an auxiliary device for disinfection and replacement of an external peritoneal dialysis catheter. Figure 4 for Figure 1 The image shown is a cross-sectional view of an auxiliary device for disinfection and replacement of an external peritoneal dialysis catheter. Figure 5 for Figure 4 A magnified schematic diagram of the local structure at point A; Figure 6 for Figure 4 A magnified view of the structure at point B in the middle; Figure 7 for Figure 1 A cross-sectional view (another section) of a peritoneal dialysis external catheter disinfection and replacement auxiliary device is shown. Figure 8 for Figure 7 A magnified schematic diagram of the structure at point C in the middle; Figure 9 for Figure 7 A magnified schematic diagram of the local structure at point D; Figure 10 for Figure 1 A cross-sectional view (another section) of a peritoneal dialysis external catheter disinfection and replacement auxiliary device is shown. Figure 11 for Figure 1 The diagram shows a three-dimensional structural schematic of the fixation strap and related structures in an auxiliary device for disinfection and replacement of an external short catheter in peritoneal dialysis. Figure 12 for Figure 1The diagram shows a three-dimensional structural schematic of the fixing block and related structures in an auxiliary device for disinfection and replacement of an external short catheter in peritoneal dialysis. Figure label: 1-Disinfection cylinder, 101-Liquid inlet, 102-Liquid outlet, 103-Connecting groove, 104-Titanium connector; 2-Limiting part, 201-Limiting cylinder, 202-Arc-shaped block, 203-Mounting groove, 204-Through groove, 205-Arc-shaped groove, 206-Rotating block, 207-Spring, 208-Limiting rod, 209-Protrusion, 210-Sealing plate, 211-Sealing gasket, 212-Limiting groove; 3-Cleaning section, 301-Lifting cylinder, 302-Guide groove, 303-Rotating rod, 304-Protrusion, 305-Mounting block, 306-Support rod, 307-Fixing block, 308-Cleaning brush, 309-Cleaning groove; 4-Lifting unit, 401-Sealed box, 402-Rotating motor, 403-Rotating gear, 404-Lifting frame, 405-Groove, 406-Lifting rack; 5-Fixing part, 501-Clamping plate, 502-Fixing strap, 503-Insert, 504-Extension strap, 505-Hook and loop fastener, 506-Moving groove, 507-Curved sliding plate, 508-Card slot, 509-Card block; 6-Observation window. Detailed Implementation

[0018] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0019] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0020] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] Example: like Figures 1-12 As shown, the present invention provides an auxiliary device for disinfection and replacement of peritoneal dialysis external short tubes, including a disinfection cylinder 1 for immersing and disinfecting titanium connectors. The disinfection cylinder 1 has an inlet 101 and an outlet 102 on its outer side. Limiting part 2 is used to limit the titanium connector. The limiting part 2 is fixedly installed on the top surface of the disinfection cylinder 1. Cleaning section 3 is used to clean the surface of the titanium connector. Cleaning section 3 is located inside the sterilization cylinder 1. Lifting part 4 is used to drive cleaning part 3 to rise or fall. Lifting part 4 is fixedly installed on the bottom surface inside the disinfection cylinder 1. The fixing part 5 is used to fix the disinfection cylinder 1 to the patient. The fixing part 5 is located on the outside of the disinfection cylinder 1.

[0022] In this way, when the titanium connector needs to be disinfected, iodine is poured into the disinfection cylinder 1 through the inlet 101. After the iodine reaches the required level, the titanium connector is placed into the disinfection cylinder 1, and the limiting part 2 is driven to limit the titanium connector. After the limiting is completed, the disinfection cylinder 1 is fixed to the patient through the fixing part 5. After the disinfection cylinder 1 is fixed, the lifting unit 4 drives the cleaning unit 3 to rise. After the cleaning unit 3 rises a certain distance, it comes into contact with the titanium connector. After the cleaning unit 3 contacts the titanium connector, it can clean the surface of the titanium connector. With this structure, the disinfection cylinder 1 can be fixed on the patient, so the patient no longer needs to maintain a fixed posture for a long time, reducing the burden on the patient. At the same time, the titanium connector can be cleaned and disinfected.

[0023] In this embodiment, the outer side of the disinfection cylinder 1 has a connecting groove 103. The fixing part 5 includes a clamp 501 fixedly installed on the inner wall of the connecting groove 103. A fixing strap 502 is provided on the inner side of the clamp 501. An insertion port 503 is provided on the surface of the fixing strap 502. The clamp 501 can be inserted into the insertion port 503. Both ends of the fixing strap 502 are fixedly connected to the extension strap 504. The ends of the extension strap 504 are fixedly connected to the Velcro 505. The Velcro 505 can be glued to each other.

[0024] In this way, when it is necessary to fix the sterilization tube 1, the clamp 501 is aligned with the socket 503 and inserted. After the clamp 501 is inserted into the socket 503, the fixing strap 502 is flattened and wrapped around the patient. Then the stretching strap 504 is stretched and the Velcro 505 at the end of the stretching strap 504 is glued together. The stretching strap 504 is then loosened, and the fixing strap 502 and the stretching strap 504 are pressed tightly against the patient. With this structure, the sterilization tube 1 can be fixed to the patient's body, so the patient no longer needs to maintain a fixed posture for a long time, reducing the burden on the patient.

[0025] In this embodiment, the lifting part 4 includes a sealed box 401 fixedly installed inside the disinfection cylinder 1, a rotating motor 402 fixedly installed on the side wall of the sealed box 401, and a rotating gear 403 fixedly connected to the output end of the rotating motor 402. A lifting frame 404 is fixedly installed inside the sealed box 401. A groove 405 is opened on the side of the lifting frame 404. A lifting rack 406 is slidably connected inside the lifting frame 404. The lifting rack 406 is meshed with the rotating gear 403. The top surface of the lifting rack 406 is connected to the cleaning part 3.

[0026] In this way, the rotating motor 402 is turned on by the button connected to the external line. The rotating motor 402 drives the rotating gear 403 to rotate together. The rotating gear 403 meshes with the lifting rack 406, causing the lifting rack 406 to rise. The top surface of the lifting rack 406 is connected to the cleaning part 3. The lifting rack 406 causes the cleaning part 3 to rise toward the titanium connector. After the cleaning part 3 rises a certain distance, the cleaning part 3 contacts the titanium connector. With this structure, the cleaning part 3 can be driven to rise or fall, and the cleaning part 3 can be controlled to contact or move away from the titanium connector.

[0027] In this embodiment, the cleaning unit 3 includes a lifting cylinder 301 fixedly installed on the top surface of the lifting frame 404. A guide groove 302 is provided inside the lifting cylinder 301. A rotating rod 303 is rotatably connected to the top surface of the lifting rack 406. A threaded protrusion 304 is provided on the outside of the rotating rod 303. The protrusion 304 is adapted to the guide groove 302, and the rotating rod 303 can rotate along the guide groove 302. A mounting block 305 is fixedly connected to the top surface of the rotating rod 303. A support rod 306 is symmetrically fixedly connected to the top surface of the mounting block 305. A fixing block 307 is fixedly connected to the end of the support rod 306. A cleaning brush 308 is evenly mounted on the side of the fixing block 307.

[0028] In this way, when the titanium connector needs to be cleaned, the drive motor 402 drives the lifting rack 406 to rise, giving the rotating rod 303 a force to rise. The protrusion 304 on the surface of the rotating rod 303 is adapted to the guide groove 302. Under the limit of the guide groove 302, the rotating rod 303 starts to rotate. The rotating rod 303 rotates along the guide groove 302, driving the mounting block 305 to rotate together. The cleaning brush 308 starts to rotate around the titanium connector. The cleaning brush 308 abuts against the surface of the titanium connector. With this structure, the cleaning brush 308 can be driven to rotate around the titanium connector to clean the surface of the titanium connector and reduce the stains on the surface of the titanium connector.

[0029] In this embodiment, a movable groove 506 is provided on the side wall of the connecting groove 101, and an arc-shaped sliding plate 507 is slidably connected in the movable groove 506. A slot 508 is provided on the side wall of the connecting groove 101 away from the movable groove 506. A locking block 509 is fixedly provided on the end face of the arc-shaped sliding plate 507. The locking block 509 can engage with the slot 508. Thus, when the fixing part 5 is not used, the connecting groove 101 can be sealed, reducing the possibility of damage to the clamping plate 501.

[0030] In this embodiment, the surface of the fixing block 307 is provided with a cleaning groove 309, which allows the debris cleaned from the surface of the titanium connector to be transferred along the cleaning groove 309, reducing the possibility that the debris will affect the cleaning brush 308 in cleaning the surface of the titanium connector.

[0031] In this embodiment, the guide groove 302 is arc-shaped and has a smooth surface, which can improve the smoothness of the rotation process of the rotating rod 303 and reduce the possibility of the rotating rod 303 getting stuck in the lifting cylinder 301.

[0032] In this embodiment, the limiting part 2 includes a limiting cylinder 201 fixedly installed on the top surface of the disinfection cylinder 1. An arc-shaped block 202 is symmetrically fixedly installed inside the limiting cylinder 201. Installation grooves 203 are symmetrically opened on both sides of the disinfection cylinder 1. A through groove 204 is opened inside the arc-shaped block 202. The through groove 204 communicates with the installation groove 203. An arc-shaped groove 205 is opened inside the installation groove 203. A rotating block 206 is rotatably connected in the mounting groove 203. A spring 207 is fixedly installed in the through groove 204. A limit rod 208 is slidably connected in the through groove 204. The outer side of the limit rod 208 is fixedly connected to the spring 207. A protrusion 209 is provided on one side of the rotating block 206. The protrusion 209 is adapted to the arc groove 205. The protrusion 209 can abut against the end of the limit rod 208 away from the titanium connector. A sealing plate 210 is rotatably connected in the mounting groove 203.

[0033] Thus, when it is necessary to limit the titanium connector, rotate the rotating block 206. After rotating a certain angle, the protrusion 209 on one side of the rotating block 206 contacts the end of the limiting rod 208. Continue to rotate the rotating block 206. The protrusion 209 is located in the arc groove 205, pushing the limiting rod 208 towards the titanium connector. During the movement, the spring 207 is compressed. After moving a certain distance, the end of the limiting rod 208 abuts against the titanium connector, clamping and limiting the titanium connector. Rotate the sealing plate 210 to seal the mounting groove 203, completing the clamping and limiting of the titanium connector. Similarly, when it is necessary to contact the limiting position of the titanium connector, the rotating block 206 is rotated in the opposite direction, the protrusion 209 contacts the pushing force on the limiting rod 208, the spring 207 elastically resets, and drives the limiting rod 208 to move away from the titanium connector, thereby releasing the limiting position of the titanium connector. With this structure, the titanium connector can be clamped and limited, improving the stability of the titanium connector during the cleaning and disinfection process.

[0034] In this embodiment, a sealing gasket 211 is provided on the top surface of the arc-shaped block 202. A limiting groove 212 is opened in the center of the sealing gasket 211. Specifically, an extension groove is also evenly opened on the outer periphery of the limiting groove 212, which can seal the limiting cylinder 201, reduce the possibility of external dust contaminating the iodine in the disinfection cylinder 1, and at the same time ensure that the titanium connector can pass through the limiting groove 212.

[0035] In this embodiment, an observation window 6 is fixedly installed on the side of the disinfection cylinder 1, which facilitates medical staff to observe the situation inside the disinfection cylinder 1 and make it easier to adjust medical measures in real time.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A peritoneal dialysis external catheter disinfection and replacement auxiliary device, characterized in that, include: The disinfection tube (1) is used to immerse and disinfect the titanium connector. The disinfection tube (1) has an inlet (101) and an outlet (102) on its outer side. A limiting part (2) is used to limit the titanium connector, and the limiting part (2) is fixedly installed on the top surface of the disinfection cylinder (1); The cleaning section (3) is used to clean the surface of the titanium connector, and the cleaning section (3) is disposed inside the sterilization cylinder (1); The lifting part (4) is used to drive the cleaning part (3) to rise or fall. The lifting part (4) is fixedly installed on the bottom surface inside the disinfection cylinder (1). The fixing part (5) is used to fix the disinfection tube (1) to the patient. The fixing part (5) is located on the outside of the disinfection tube (1).

2. The peritoneal dialysis external catheter disinfection and replacement auxiliary device according to claim 1, characterized in that, The disinfection tube (1) has a connecting groove (103) on its outer side. The fixing part (5) includes a clamp (501) fixedly installed on the inner wall of the connecting groove (103). A fixing strap (502) is provided on the inner side of the clamp (501). An insertion port (503) is provided on the surface of the fixing strap (502). The clamp (501) can be inserted into the insertion port (503). Both ends of the fixing strap (502) are fixedly connected to the extension strap (504). The ends of the extension strap (504) are fixedly connected to the Velcro (505). The Velcro (505) can be glued to each other.

3. The peritoneal dialysis external catheter disinfection and replacement auxiliary device according to claim 1, characterized in that, The lifting part (4) includes a sealed box (401) fixedly installed inside the disinfection cylinder (1), a rotating motor (402) is fixedly installed on the side wall of the sealed box (401), and a rotating gear (403) is fixedly connected to the output end of the rotating motor (402). A lifting frame (404) is fixedly installed inside the sealed box (401). A groove (405) is opened on the side of the lifting frame (404). A lifting rack (406) is slidably connected inside the lifting frame (404). The lifting rack (406) is meshed with the rotating gear (403). The top surface of the lifting rack (406) is connected to the cleaning part (3).

4. The peritoneal dialysis external catheter disinfection and replacement auxiliary device according to claim 3, characterized in that, The cleaning unit (3) includes a lifting cylinder (301) fixedly installed on the top surface of the lifting frame (404). A guide groove (302) is provided inside the lifting cylinder (301). A rotating rod (303) is rotatably connected to the top surface of the lifting rack (406). A threaded protrusion (304) is provided on the outside of the rotating rod (303). The protrusion (304) is adapted to the guide groove (302). The rotating rod (303) can rotate along the guide groove (302). The top surface of the rotating rod (303) is fixedly connected to the mounting block (305), the top surface of the mounting block (305) is symmetrically fixedly connected to the support rod (306), the end of the support rod (306) is fixedly connected to the fixing block (307), and the side of the fixing block (307) is uniformly rotatably mounted with a cleaning brush (308).

5. The peritoneal dialysis external catheter disinfection and replacement auxiliary device according to claim 2, characterized in that, The connecting groove (101) has a moving groove (506) on its side wall. An arc-shaped sliding plate (507) is slidably connected in the moving groove (506). A slot (508) is opened on the side wall of the connecting groove (101) away from the moving groove (506). A locking block (509) is fixed on the end face of the arc-shaped sliding plate (507). The locking block (509) can engage with the slot (508).

6. The peritoneal dialysis external catheter disinfection and replacement auxiliary device according to claim 4, characterized in that, The surface of the fixing block (307) has a cleaning groove (309).

7. The peritoneal dialysis external catheter disinfection and replacement auxiliary device according to claim 4, characterized in that, The guide groove (302) is arc-shaped and has a smooth surface.

8. The peritoneal dialysis external catheter disinfection and replacement auxiliary device according to claim 1, characterized in that, The limiting part (2) includes a limiting cylinder (201) fixedly installed on the top surface of the disinfection cylinder (1). An arc-shaped block (202) is symmetrically fixedly installed inside the limiting cylinder (201). There are symmetrical installation grooves (203) on both sides of the disinfection cylinder (1). There is a through groove (204) inside the arc-shaped block (202). The through groove (204) communicates with the installation groove (203). There is an arc-shaped groove (205) inside the installation groove (203). A rotating block (206) is rotatably connected in the mounting groove (203). A spring (207) is fixedly installed in the through groove (204). A limiting rod (208) is slidably connected in the through groove (204). The outer side of the limiting rod (208) is fixedly connected to the spring (207). A protrusion (209) is provided on one side of the rotating block (206). The protrusion (209) is adapted to the arc groove (205). The protrusion (209) can abut against the end of the limiting rod (208) away from the titanium connector. A sealing plate (210) is rotatably connected in the mounting groove (203).

9. The peritoneal dialysis external catheter disinfection and replacement auxiliary device according to claim 8, characterized in that, The top surface of the arc-shaped block (202) is provided with a sealing gasket (211), and a limiting groove (212) is opened in the center of the sealing gasket (211).

10. The peritoneal dialysis external catheter disinfection and replacement auxiliary device according to claim 1, characterized in that, An observation window (6) is fixedly installed on the side of the disinfection cylinder (1).

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