Leak-proof external short tube for peritoneal dialysis

Abstract

The present invention relates to the technical field of medical devices, and discloses an anti-leakage external short tube for peritoneal dialysis, which includes a tube body and a first joint. The first joint includes a protective sleeve, a pipe clamp, an inner joint, an outer joint and a limit buckle. One end of the tube body is arranged in the protective sleeve and connected to the inner joint, and a pipe clamp is arranged at the connection. A baffle is arranged on the inner joint, and the baffle abuts against the top plate of the protective sleeve. The upper half of the inner joint is arranged inside the outer joint, and a silica gel gasket is arranged between the inner joint and the outer joint. A limiting member is arranged at the bottom of the outer joint, and a sealing ring and a spiral chute are arranged on the side wall of the outer joint. An anti-retreat groove is arranged at the bottom of the spiral chute. The limiting member is arranged in the protective sleeve, and slots are arranged on both side walls of the protective sleeve. The limit buckle passes through the slots and is clamped with the limiting member and the inner joint. The present invention can not only avoid liquid leakage during dialysis and when replacing dialysis fluid, but also seal the short tube when docking with an iodophor cap, and can also facilitate docking and installation, greatly improving the use effect and reducing the infection risk.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an anti-leakage external short tube for peritoneal dialysis. Background Art

[0002] Peritoneal dialysis is the main renal replacement therapy for the treatment of end-stage renal disease. Peritoneal dialysis-related peritonitis is the most serious complication in current peritoneal dialysis, which is also the main reason for patients to abandon peritoneal dialysis and switch to hemodialysis. Peritoneal dialysis requires a passage to be established through three parts: a permanently indwelling peritoneal dialysis catheter, a titanium connector, and an external short tube for peritoneal dialysis. Among them, the external short tube is completely exposed to the external environment, and the disinfection, cleaning, replacement and other operation processes are all carried out in a non-sterile environment, which is the key factor leading to patient infection.

[0003] Therefore, Chinese Patent No. 201621169397.8 discloses an external short tube for peritoneal dialysis, which includes a spiral locking joint, a fixed switch, a rotary switch, a silicone tube, a connector and a connector protection cap. A silicone fixing tube is sleeved outside the connection part of one end of the silicone tube and the bottom end of the connector. Medical adhesive is applied to the connection parts between the connector, the silicone tube and the silicone fixing tube. The other end of the silicone tube passes through the rotary switch and the fixed switch and then is connected to the spiral locking joint, and is welded into one body by high-frequency electromagnetic waves; a notch is provided on the external thread at the rear end of the spiral locking joint connected to the fixed switch, a thread piece with the same shape as the notch is placed in the notch, the thread provided on the outer surface of the thread piece is consistent with the external thread on the surrounding spiral locking joint, the material of the thread piece is the same as that of the fixed switch, the external thread at the rear end of the spiral locking joint is connected to the threaded hole of the fixed switch, and is welded into one body by high-frequency electromagnetic waves.

[0004] There are at least the following problems in the prior art: during the process of replacing dialysis fluid with the existing external short tube for peritoneal dialysis, liquid leakage and seepage often occur; when docking with an iodine-containing cap, povidone iodine solution will enter the abdominal cavity along the external short tube for peritoneal dialysis; and most of the connectors are thread-connected, with slow disassembly and assembly speed, inconvenient connection, and increased infection probability. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention develops an anti-leakage external short tube for peritoneal dialysis. The present invention can not only avoid liquid leakage during dialysis and when replacing dialysis fluid, but also seal the short tube when docking with an iodine-containing cap, and can also facilitate docking and installation with other connectors, greatly improving the use effect and greatly reducing the infection risk.

[0006] The technical solution for the present invention to solve the technical problem is as follows: An anti-leakage external short tube for peritoneal dialysis, including a tube body, further comprising a first connector. The first connector includes a protective sleeve, a pipe clamp, an inner connector, an outer connector and a limit buckle. One end of the tube body is arranged inside the protective sleeve and connected to the lower half of the inner connector. A pipe clamp is provided at the connection. A baffle is provided in the middle of the inner connector, and the baffle abuts against the top plate of the protective sleeve. A positioning block matching the baffle is provided on the top plate. The upper half of the inner connector is arranged inside the outer connector. A silica gel gasket is provided between the top of the inner connector and the outer connector. A limiting member is provided at the bottom of the outer connector. A sealing ring and a spiral chute are provided on the side wall of the outer connector. An anti-retreat groove is provided at the bottom of the spiral chute. The limiting member is arranged inside the protective sleeve. Slots are provided on both side walls of the protective sleeve. The limit buckle passes through the slots and is clamped with the limiting member and the inner connector.

[0007] As an optimization, a top plate groove and a baffle groove are provided at the bottom of the connector. An infusion hole is provided at the top. The limiting member is arranged in the top plate groove. The top plate groove matches the top plate of the protective sleeve. The baffle groove is arranged between two groups of limiting members and matches the baffle. An installation cavity is provided in the baffle groove. The upper half of the outer connector is arranged in the installation cavity. The top of the outer connector abuts against the infusion hole through a silica gel gasket. By providing the top plate groove and the baffle groove, they can cooperate with the top plate and the baffle, enhancing the connection strength and stability between the protective sleeve and the outer connector, and at the same time preventing relative rotation between the protective sleeve and the outer connector.

[0008] As an optimization, a through hole is provided through the protective sleeve. A pipe cavity and a limiting cavity are provided in the through hole. The pipe clamp is arranged in the pipe cavity. The pipe clamp includes a first half clamp and a second half clamp. One end of the first half clamp and the second half clamp is connected by a connecting piece, and the other end is connected by a buckle. An anti-slip ring is provided on the inner side of the pipe clamp. Anti-slip grooves corresponding to the anti-slip ring are provided on the lower half of the inner connector. By providing the pipe cavity, it can accommodate and restrain the pipe clamp, keeping the tube body and the inner connector stably connected. By providing the limiting cavity, it can accommodate the limiting member, the limit buckle and the inner connector, enabling the limit buckle to effectively lock the limiting member and the inner connector. By providing the first half clamp, the second half clamp, the connecting piece and the buckle, it is convenient for assembly and convenient to install the pipe clamp at the connection of the tube body and the inner connector. By providing the anti-slip ring, it can further prevent the tube body from falling off the inner connector, improving safety.

[0009] As an optimization, two groups of symmetric first card slots are further provided in the middle of the inner connector. The first card slots are arranged in the limiting cavity and correspond to the positions of the slots. By providing the first card slots, it is convenient for the limit buckle to lock and limit the inner connector, fixing the inner connector to the protective sleeve.

[0010] As an optimization, there are two sets of limit members symmetrically arranged. The limit members are in an "I" shape, with second card slots provided on both sides. The limit members are arranged in the limit cavity, with a gap between them and the inner joint. The openings of the second card slots face the direction of the slot, and the positions of the second card slots correspond to those of the first card slots. By providing the second card slots, it is convenient for the limit buckle to limit and lock the limit members, thereby fixing the outer joint. By providing a gap between the limit members and the inner joint, the limit buckle can be accommodated, enabling the limit buckle to fix both the first card slot and the first card slot simultaneously, thus fixing the inner joint and the outer joint simultaneously, stably and efficiently.

[0011] As an optimization, there are two sets of limit buckles. The outer sidewalls of the limit buckles are adapted to the sidewalls of the protective sleeve. At both ends of the top of the inner sidewall, there are limit blocks. On the two sets of limit blocks, there are a first buckle and a second buckle respectively. The first buckle and the second buckle are parallel to each other. The inner sides of the first buckle and the second buckle are flush with the inner sides of the limit blocks, and there is a dislocation between the outer sides and the outer sides of the limit blocks. By providing the limit blocks, the first buckle and the second buckle, central symmetry can be achieved, so that they can adaptively cooperate with each other. The structure is simple and compact, and it is very firm after passing through the slot and being installed in the limit cavity without detachment.

[0012] As an optimization, the two sets of limit buckles are respectively arranged in the two sets of slots. The first buckle of one set of limit buckles is engaged with the second buckle of the other set of limit buckles in the first card slot. The limit blocks of the two sets of limit buckles correspond to each other in pairs. The outer sides of the corresponding two sets of limit blocks form a "T" - shaped gap, and the limit member is arranged in the "T" - shaped gap. By arranging the two sets of limit buckles in the two sets of slots and distributing the two sets of limit buckles symmetrically about the center, the first buckle and the second buckle are engaged with each other. The inner and outer sides of the first buckle and the second buckle fix the first card slot and the limit member simultaneously, simply, efficiently and very firmly.

[0013] As an optimization, the other end of the pipe body is connected to the second joint, and a regulating valve is provided on the pipe body. By providing the second joint, long - term connection with the permanent indwelling tube can be achieved. By providing the regulating valve, the liquid flow in the pipe body can be switched on and off.

[0014] As an optimization, the regulating valve includes a valve body, a push block and a roller. A pipe with a rectangular cross-section penetrates through the valve body. The pipe body is arranged inside the pipe. An opening is provided at the top of the pipe. A slideway is provided on the inner side wall of the pipe. A locking groove is provided at the top of the slideway. The bottom of the pipe includes a locking section, a sliding section and a flow-through section. The bottom surface of the locking section is high, the bottom surface of the flow-through section is low, and the sliding section is inclined and is connected to the locking section and the flow-through section at both ends respectively. The top of the push block is arranged outside the valve body through the opening. Limiting rods are provided on both sides of one end of the push block. The limiting rods are arranged in the slideway. A roller is provided at the other end. The rotating shafts on both sides of the roller pass through the push block and are arranged in the slideway. By arranging the valve body, the pipe body can be supported to support the movement of the push block and the roller. By arranging the push block and the roller, it is convenient for the user to push the roller, and the roller can be moved from the flow-through section to the locking section to clamp the pipe body immediately to block the liquid flow, or the roller can be moved from the locking section to the flow-through section to release the pipe body immediately to restore the liquid flow, which is very fast. By arranging the slideway, the locking groove, the limiting rods and the rotating shafts, the push block and the roller can be prevented from detaching from the valve body, and guidance and positioning can be provided for the movement of the push block and the roller.

[0015] As an optimization, the locking groove is adapted to the rotating shaft, and the locking groove is provided above the locking section. By arranging the locking groove above the locking section, the roller can be effectively fixed to prevent the roller from sliding.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By setting up a protective sleeve, it is possible to protect the connection between the tube body and the inner joint, protect and restrain the pipe clamp, prevent the pipe clamp from opening, which may cause the tube body to fall off the inner joint and result in liquid leakage. It is convenient for the user to pick it up and dock with other joints, avoiding direct contact of human hands or other objects with the connection between the tube body and the inner joint and preventing contamination. By setting up the pipe clamp, the tube body can be stably pressed against the lower half of the inner joint to prevent it from falling off. By setting up the inner joint, the tube body can be connected to the outer joint. By setting up the baffle and positioning block, the inner joint can be positioned to prevent it from rotating within the protective sleeve. By setting up the outer joint, it can enclose and protect the inner joint and dock with other joints. By setting up the sealing ring, liquid leakage can be avoided. By setting up the spiral chute, it is convenient to dock with other joints. Compared with threaded connection, the docking speed is greatly improved. By setting up the anti-retreat groove, the slider within other joints can be limited and clamped to prevent the slider within other joints from sliding back, which may cause the joints to separate and result in liquid leakage. By setting up the limiting member, the outer joint can be kept connected to the protective sleeve. By setting up the silicone gasket, when not connected to other plug-in joints, it can seal the inner joint and the outer joint to avoid liquid leakage, and it is convenient for the plug-in joint to insert into the silicone gasket and communicate with the inner joint, thus communicating with the tube body for transfusion. Moreover, the silicone gasket will be squeezed around the plug-in joint and wrap the side wall of the inner tube without liquid leakage. By setting up the limiting buckle, the inner joint and the outer joint can be fixed to the protective sleeve at the same time. The present invention can not only avoid liquid leakage during dialysis and when replacing dialysis fluid, but also seal the short tube when docking with an iodine - containing cap, and is also convenient for docking and installation with other joints, greatly improving the use effect and significantly reducing the infection risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic diagram of the overall structure of an embodiment of the present invention.

[0019] Figure 2 FIG. is a schematic diagram of the internal structure of the first joint in an embodiment of the present invention.

[0020] Figure 3 FIG. is a schematic diagram of the connection among the protective sleeve, the inner joint and the outer joint in an embodiment of the present invention.

[0021] Figure 4 FIG. is the front view of the protective sleeve in an embodiment of the present invention.

[0022] Figure 5 FIG. is the left view of the protective sleeve in an embodiment of the present invention.

[0023] Figure 6 FIG. is the top view of the protective sleeve in an embodiment of the present invention.

[0024] Figure 7 FIG. is a schematic diagram of the overall structure of the pipe clamp in an embodiment of the present invention.

[0025] Figure 8 This is the rear view of the pipe clamp in an embodiment of the present invention.

[0026] Figure 9 This is the overall structural schematic diagram of the inner joint in an embodiment of the present invention.

[0027] Figure 10 This is the overall structural schematic diagram of the outer joint in an embodiment of the present invention.

[0028] Figure 11 This is the bottom view of the outer connection in an embodiment of the present invention.

[0029] Figure 12 This is the overall structural schematic diagram of the limit buckle in an embodiment of the present invention.

[0030] Figure 13 This is the front view of the regulating valve in an embodiment of the present invention.

[0031] Figure 14 This is the internal structural schematic diagram of the regulating valve in an embodiment of the present invention.

[0032] Figure 15 This is the structural schematic diagram when the regulating valve clamps the pipe body in an embodiment of the present invention.

[0033] In the figure: 1, pipe body; 2, first joint; 3, protective sleeve; 4, pipe clamp; 5, inner joint; 6, outer joint; 7, limit buckle; 8, second joint; 9, regulating valve;

[0034] 31, top plate; 32, positioning block; 33, slot; 34, pipe cavity; 35, limit cavity;

[0035] 41, first half hoop; 42, second half hoop; 43, connecting piece; 44, buckle; 45, anti-slip ring;

[0036] 51, baffle; 52, retaining groove; 53, anti-slip groove; 54, first card slot;

[0037] 60, sealing ring; 61, limiting piece; 62, spiral chute; 63, anti-retreat groove; 64, second card slot; 65, top plate groove; 66, baffle groove; 67, infusion hole; 68, installation cavity; 69, silica gel gasket;

[0038] 71, limiting block; 72, first buckle; 73, second buckle;

[0039] 91, valve body; 92, push block; 93, roller; 94, pipeline; 95, slideway; 96, locking groove; 97, limiting rod; 98, rotating shaft. Detailed implementation manners

[0040] In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below through specific embodiments and in conjunction with its accompanying drawings.

[0041] Embodiment 1

[0042] Figures 1 to 15 It is a schematic diagram of an embodiment of the present invention. As Figures 1 to 15 shown, a leak-proof peritoneal dialysis external short tube includes a tube body 1, and also includes a first joint 2. The first joint 2 includes a protective sleeve 3, a pipe clamp 4, an inner joint 5, an outer joint 6 and a limit buckle 7. One end of the tube body 1 is arranged in the protective sleeve 3 and connected to the lower half of the inner joint 5. A pipe clamp 4 is provided at the connection. A baffle 51 is provided in the middle of the inner joint 5. A retaining groove 52 is provided on the baffle 51. The baffle 51 abuts against the top plate 31 of the protective sleeve 3. A positioning block 32 matching the retaining groove 52 of the baffle 51 is provided on the top plate 31. The upper half of the inner joint 5 is arranged inside the outer joint 6. A silicone gasket 69 is provided between the top of the inner joint 5 and the outer joint 6. A limiting member 61 is provided at the bottom of the outer joint 6. A sealing ring 60 and a spiral chute 62 are provided on the side wall of the outer joint 6. An anti-retreat groove 63 is provided at the bottom of the spiral chute 62. The limiting member 61 is arranged in the protective sleeve 3. Slots 33 are provided on both side walls of the protective sleeve 3. The limit buckle 7 passes through the slots 33 and is clamped with the limiting member 61 and the inner joint 5.

[0043] By setting the protective sleeve 3, the connection between the pipe body 1 and the inner joint 5 can be protected, the restraint pipe clamp 4 can be protected, and the pipe clamp 4 can be prevented from opening, resulting in the pipe body 1 falling off the inner joint 5 and leaking liquid. It is convenient for the user to pick it up and dock with other joints, avoiding direct contact of human hands or other objects with the connection between the pipe body 1 and the inner joint 5 and avoiding contamination. By setting the pipe clamp 4, the pipe body 1 can be stably pressed on the lower half of the inner joint 5 to prevent it from falling off. By setting the inner joint 5, the pipe body 1 can be connected to the outer joint 6. By setting the baffle 51, the retaining groove 52 and the positioning block 32, the inner joint 5 can be positioned to prevent the inner joint 5 from rotating within the protective sleeve 3. By setting the outer joint 6, the inner joint 5 can be enclosed and protected and docked with other joints. By setting the sealing ring 60, liquid leakage can be avoided. By setting the spiral chute 62, it is convenient to dock with other joints. Compared with threaded connection, the docking speed is greatly improved. By setting the anti-retreat groove 63, the slider within other joints can be limited and clamped to prevent the slider within other joints from sliding backward, resulting in the separation of the joints and liquid leakage. By setting the limiting member 61, the outer joint 6 can be kept connected to the protective sleeve 3. By setting the silica gel gasket 69, when not connected to other plug-in joints, the inner joint 5 and the outer joint 6 can be sealed to avoid liquid leakage or iodine solution leakage, and it is convenient for the plug-in joint to insert into the silica gel gasket 69 and communicate with the inner joint 5, thereby communicating with the pipe body 1 for infusion. Moreover, the silica gel gasket 69 will be squeezed around the plug-in joint and wrap the side wall of the inner tube, without liquid leakage. By setting the limiting buckle 7, the inner joint 5 and the outer joint 6 can be fixed to the protective sleeve 3 at the same time.

[0044] As Figure 10 and Figure 11 shown, the bottom of the outer joint 6 is provided with a top plate groove 65 and a baffle groove 66, the top is provided with an infusion hole 67, the limiting member 61 is arranged in the top plate groove 65, the top plate groove 65 cooperates with the top plate 31 of the protective sleeve 3, the baffle groove 66 is arranged between the two groups of limiting members 61, the baffle groove 66 cooperates with the baffle 51, an installation cavity 68 is arranged in the baffle groove 66, the upper half of the outer joint 6 is arranged in the installation cavity 68, and the top of the outer joint 6 abuts against the infusion hole 67 through the silica gel gasket 69. By setting the top plate groove 65 and the baffle groove 66, they can cooperate with the top plate 31 and the baffle 51 to enhance the connection strength and connection stability between the protective sleeve 3 and the outer joint 6, and at the same time prevent relative rotation between the protective sleeve 3 and the outer joint 6.

[0045] As Figures 4 to 9As shown, a through hole is provided through the protective sleeve 3. A pipe cavity 34 and a limiting cavity 35 are provided in the through hole. The pipe clamp 4 is arranged in the pipe cavity 34. The pipe clamp 4 includes a first half clamp 41 and a second half clamp 42. One ends of the first half clamp 41 and the second half clamp 42 are connected by a connecting piece 43, and the other ends are connected by a buckle 44. An anti-slip ring 45 is arranged on the inner side of the pipe clamp 4. A lower half of the inner joint 5 is provided with an anti-slip groove 53 corresponding to the anti-slip ring 45. By providing the pipe cavity 34, the pipe clamp 4 can be accommodated, so that the pipe body 1 and the inner joint 5 are stably connected; by providing the limiting cavity 35, the limiting member 61, the limiting buckle 7 and the inner joint 5 can be accommodated, so that the limiting buckle 7 can effectively lock the limiting member 61 and the inner joint 5; by providing the first half clamp 41, the second half clamp 42, the connecting piece 43 and the buckle 44, the assembly can be facilitated, and the pipe clamp 4 can be conveniently installed at the connection of the pipe body 1 and the inner joint 5. By providing the anti-slip ring 45, the pipe body 1 can be further prevented from falling off the inner joint 5, improving safety.

[0046] As Figure 3 and Figure 9 shown, two sets of symmetric first clamping grooves 54 are further provided in the middle of the inner joint 5. The first clamping grooves 54 are arranged in the limiting cavity 35 and correspond to the positions of the slot 33. By providing the first clamping grooves 54, the limiting buckle 7 can conveniently lock and limit the inner joint 5, and fix the inner joint 5 to the protective sleeve 3.

[0047] As Figure 3 and Figure 10 shown, two sets of limiting members 61 are symmetrically provided. The limiting members 61 are in an "I" shape, and second clamping grooves 64 are provided on both sides. The limiting members 61 are arranged in the limiting cavity 35, and there is a gap between the limiting members 61 and the inner joint 5. The openings of the second clamping grooves 64 face the direction of the slot 33, and the positions of the second clamping grooves 64 correspond to the positions of the first clamping grooves 54. By providing the second clamping grooves 64, the limiting buckle 7 can conveniently limit and lock the limiting members 61, thereby fixing the outer joint 6; by providing a gap between the limiting members 61 and the inner joint 5, the limiting buckle 7 can be accommodated, so that the limiting buckle 7 can simultaneously fix the first clamping groove 54 and the first clamping groove 54, thereby simultaneously fixing the inner joint 5 and the outer joint 6, which is stable and efficient.

[0048] As Figure 12As shown, there are two sets of limit buckles 7. The outer sidewall of the limit buckle 7 is adapted to the sidewall of the protective sleeve 3. At both ends of the top of the inner sidewall, there are limit blocks 71. A first buckle 72 and a second buckle 73 are respectively provided on the two sets of limit blocks 71. The first buckle 72 and the second buckle 73 are parallel to each other. The inner side surfaces of the first buckle 72 and the second buckle 73 are flush with the inner side surface of the limit block 71, and there is a dislocation between the outer side surfaces and the outer side surface of the limit block 71. By setting the limit block 71, the first buckle 72 and the second buckle 73, central symmetry can be carried out, so that they can adaptively cooperate with each other. The structure is simple and compact, and it is very firm after passing through the slot 33 and being installed into the limit cavity 35, and will not come off.

[0049] As Figure 2 and Figure 12 shown, the two sets of limit buckles 7 are respectively arranged in the two sets of slots 33. The first buckle 72 of one set of limit buckles 7 and the second buckle 73 of the other set of limit buckles 7 are clamped with each other in the first clamping groove 54. The limit blocks 71 of the two sets of limit buckles 7 correspond to each other in pairs. The outer side surfaces of the corresponding two sets of limit blocks 71 form a "T"-shaped gap. The bottom of the limiting member 61 is arranged in the "T"-shaped gap. By arranging the two sets of limit buckles 7 in the two sets of slots 33 and distributing the two sets of limit buckles 7 symmetrically about the center, the first buckle 72 and the second buckle 73 are clamped with each other. The inner and outer sides of the first buckle 72 and the second buckle 73 fix the first clamping groove 54 and the limiting member 61 at the same time, which is simple, efficient and very firm.

[0050] As Figure 1 shown, the other end of the pipe body 1 is connected to the second joint 8, and a regulating valve 9 is provided on the pipe body. By setting the second joint 8, long-term connection with a permanently indwelling catheter can be achieved; by setting the regulating valve 9, the liquid flow in the pipe body 1 can be switched on and off.

[0051] As Figures 13 to 15As shown in the figure, the regulating valve 9 includes a valve body 91, a push block 92 and a roller 93. A pipe 94 with a rectangular cross-section runs through the valve body 91. The pipe body 1 is arranged inside the pipe 94. An opening is provided at the top of the pipe 94. Slideways 95 are provided on the inner side walls on both sides of the pipe 94. Locking grooves 96 are provided at the top of the slideways 95. The bottom of the pipe 94 includes a locking section, a sliding section and a flowing section. The bottom surface of the locking section is high, and the bottom surface of the flowing section is low. The sliding section is inclined and is connected to the locking section and the flowing section at both ends respectively. The top of the push block 92 is arranged outside the valve body 91 through the opening. Limiting rods 97 are provided on both sides of one end of the bottom of the push block 92. The limiting rods 97 are arranged in the slideways 95. A roller 93 is provided at the other end of the bottom. The rotating shafts 98 on both sides of the roller 93 pass through the push block 92 and are arranged in the slideways 95. By providing the valve body 91, the pipe body 1 can be supported and the movement of the push block 92 and the roller 93 can be supported. By providing the push block 92 and the roller 93, it is convenient for the user to push the roller 93, and the roller 93 can be moved from the flowing section to the locking section to clamp the pipe body 1 immediately to block the liquid flow, or the roller 93 can be moved from the locking section to the flowing section to release the pipe body 1 immediately to make the liquid resume flowing; it is very fast. By providing the slideways 95, the locking grooves 96, the limiting rods 97 and the rotating shafts 98, the push block 92 and the roller 93 can be prevented from detaching from the valve body 91, and guidance and positioning can be provided for the movement of the push block 92 and the roller 93.

[0052] The locking groove 96 is adapted to the rotating shaft 98, and the locking groove 96 is arranged above the locking section. By arranging the locking groove 96 above the locking section, the roller 93 can be effectively fixed to prevent the roller 93 from sliding.

[0053] In use, there are two types of mating connectors that are often used in docking with the first connector 2. The two mating connectors are respectively the catheter connector of the liquid medicine bag and the iodophor cap containing the sponge soaked with iodophor solution. The inner side walls of the two mating connectors or other mating connectors are provided with sliders corresponding to the spiral chute 62. When replacing the dialysate, first, the catheter connector of the liquid medicine bag needs to be unscrewed from the first connector 2. Rotate the catheter connector forcefully to make the slider exit from the anti-retreat groove 63, and then directly enter the spiral chute 62 and rotate 90° to quickly unscrew it. The inner catheter of the catheter connector exits from the silicone gasket 69, and the silicone gasket 69 automatically closes and returns to its original state to prevent the liquid medicine in the peritoneal dialysis external short tube from leaking or being contaminated during the dressing change interval. When inserting the catheter connector, align the slider with the spiral chute 62, and then rotate 90° to quickly tighten it. Hearing a clicking sound indicates that the slider has snapped into the anti-retreat groove 63. The inner connector of the catheter connector is inserted from the infusion hole 67, and then passes through the silicone gasket 69 to connect with the inner connector 5 for liquid replacement. The silicone gasket 69 is squeezed and wrapped around the inner connector of the pipe joint to prevent leakage. At the same time, the bottom of the catheter connector abuts against the sealing ring 60 for sealing, reducing the risk of infection. When docking with the iodophor cap, the iodophor cap contains a sponge soaked with iodophor solution, and the silicone gasket 69 is in a closed state, which can prevent the iodophor solution from entering the peritoneal dialysis external short tube. When controlling the flow of the liquid medicine in the control tube body 1, the roller 93 can be directly pushed, and the roller 93 can be immediately moved from the flow section to the locking section to clamp the tube body 1 to block the liquid flow, or the roller 93 can be immediately moved from the locking section to the flow section to release the tube body 1 to allow the liquid to resume flowing, which is very fast. The present invention can not only avoid liquid leakage during dialysis and when replacing the dialysate, but also seal the short tube when docking with the iodophor cap, facilitating docking and installation with other connectors, greatly improving the use effect and greatly reducing the infection risk.

[0054] In the present invention, the description of the orientation or relative position relationship of the structure, such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicates the orientation or relative position relationship based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

Claims

1. An anti-leakage external short tube for peritoneal dialysis, comprising a tube body (1), characterized in that: It further includes a first connector (2), and the first connector (2) includes a protective sleeve (3), a pipe clamp (4), an inner connector (5), an outer connector (6) and a limit buckle (7). One end of the pipe body (1) is arranged in the protective sleeve (3) and connected to the lower half of the inner connector (5). A pipe clamp (4) is provided at the connection. A baffle (51) is provided in the middle of the inner connector (5). The baffle (51) abuts against the top plate (31) of the protective sleeve (3). A positioning block (32) matching the baffle (51) is provided on the top plate (31). The upper half of the inner connector (5) is arranged inside the outer connector (6). A silica gel gasket (69) is provided between the top of the inner connector (5) and the outer connector (6). A limiting member (61) is provided at the bottom of the outer connector (6). A sealing ring (60) and a spiral chute (62) are provided on the side wall of the outer connector (6). The sealing ring (60) is used to abut against the bottom of the mating connector of the first connector (2). The spiral chute (62) is used to cooperate with a slider on the inner side wall of the mating connector of the first connector (2). An anti-retreat groove (63) is provided at the bottom of the spiral chute (62). The limiting member (61) is arranged in the protective sleeve (3). Slots (33) are provided on both side walls of the protective sleeve (3). The limit buckle (7) passes through the slots (33) and is clamped with the limiting member (61) and the inner connector (5); There are two groups of limit buckles (7). The outer side wall of the limit buckle (7) is adapted to the side wall of the protective sleeve (3). At both ends of the top of the inner side wall, there are limit blocks (71). A first buckle (72) and a second buckle (73) are respectively provided on the two groups of limit blocks (71). The first buckle (72) and the second buckle (73) are parallel to each other. The inner side surfaces of the first buckle (72) and the second buckle (73) are flush with the inner side surface of the limit block (71), and there is a dislocation between the outer side surfaces and the outer side surface of the limit block (71); The two groups of limit buckles (7) are respectively arranged in the two groups of slots (33). The first buckle (72) of one group of limit buckles (7) is clamped with the second buckle (73) of the other group of limit buckles (7) in the first card slot (54). The limit blocks (71) of the two groups of limit buckles (7) correspond to each other in pairs. The outer side surfaces of the corresponding two groups of limit blocks (71) form a "T" - shaped gap. The limiting member (61) is arranged in the "T" - shaped gap.

2. The anti-leakage peritoneal dialysis external short tube according to claim 1, characterized in that: A top plate groove (65) and a baffle groove (66) are provided at the bottom of the outer connector (6). An infusion hole (67) is provided at the top. The limiting member (61) is arranged in the top plate groove (65). The top plate groove (65) cooperates with the top plate (31) of the protective sleeve (3). The baffle groove (66) is arranged between the two groups of limiting members (61). The baffle groove (66) cooperates with the baffle (51). An installation cavity (68) is provided in the baffle groove (66). The upper half of the inner connector (5) is arranged in the installation cavity (68). The top of the inner connector (5) abuts against the infusion hole (67) through the silica gel gasket (69).

3. The anti-leakage peritoneal dialysis external short tube according to claim 1, characterized in that: The protective sleeve (3) is provided with a through hole running through it. Inside the through hole, there is a lumen (34) and a limiting cavity (35). The pipe clamp (4) is arranged inside the lumen (34). The pipe clamp (4) includes a first half clamp (41) and a second half clamp (42). One ends of the first half clamp (41) and the second half clamp (42) are connected by a connecting piece (43), and the other ends are connected by a buckle (44). An anti-slip ring (45) is arranged on the inner side of the pipe clamp (4). The lower half of the inner joint (5) is provided with an anti-slip groove (53) corresponding to the anti-slip ring (45).

4. The anti-leakage peritoneal dialysis external short tube according to claim 3, wherein: Two groups of symmetric first clamping grooves (54) are also arranged in the middle of the inner joint (5). The first clamping grooves (54) are arranged in the limiting cavity (35) and correspond to the positions of the slot grooves (33).

5. The anti-leakage peritoneal dialysis external short tube according to claim 4, characterized in that: there are two groups of symmetric limiting members (61). The limiting members (61) are in an "I" shape, and second clamping grooves (64) are arranged on both sides. The limiting members (61) are arranged in the limiting cavity (35), and there is a gap between the limiting members (61) and the inner joint (5). The openings of the second clamping grooves (64) face the direction of the slot grooves (33), and the positions of the second clamping grooves (64) correspond to the first clamping grooves (54).

6. The anti-leakage peritoneal dialysis external short tube according to any one of claims 1-5, characterized in that: The other end of the pipe body (1) is connected to the second joint (8), and a regulating valve (9) is arranged on the pipe body.

7. The anti-leakage peritoneal dialysis external short tube according to claim 6, wherein: The regulating valve (9) includes a valve body (91), a push block (92) and a roller (93). A pipe (94) with a rectangular cross-section runs through the valve body (91). The pipe body (1) is arranged inside the pipe (94). An opening is arranged at the top of the pipe (94). Slideways (95) are arranged on the inner side walls of the pipe (94). Locking grooves (96) are arranged at the tops of the slideways (95). The bottom of the pipe (94) includes a locking section, a sliding section and a circulation section. The bottom surface of the locking section is high, the bottom surface of the circulation section is low, and the sliding section is inclined and is connected to the locking section and the circulation section at both ends respectively. The top of the push block (92) is arranged outside the valve body (91) through the opening. Limiting rods (97) are arranged on both sides of one end of the push block (92). The limiting rods (97) are arranged in the slideways (95). A roller (93) is arranged at the other end. The rotating shafts (98) on both sides of the roller (93) pass through the push block (92) and are arranged in the slideways (95).

8. The anti-leakage external short tube for peritoneal dialysis according to claim 7, characterized in that: The locking groove (96) is adapted to the rotating shaft (98), and the locking groove (96) is arranged above the locking section.

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