Peritoneal dialysis positioner for nephrology department

Abstract

The invention relates to the technical field of medical instruments for the nephrology department, in particular to a peritoneal dialysis positioner for the nephrology department. Comprising supporting plates symmetrically arranged on an adjusting belt, the two supporting plates are each provided with a straight groove, the opposite sides of the two supporting plates are each provided with a set of abutting plates which are spaced up and down, extending plates which abut against the abutting plates on the same side in a matched mode are arranged in the straight grooves in a sliding and rotating mode, and the extending plates are each provided with a clamping groove; a lantern ring used for sleeving and fixing a guide pipe is further arranged between the two extending plates, fixing pieces are arranged on the two supporting plates, and the fixing pieces are matched with the clamping grooves in the extending plates on the same sides in a clamped mode. By arranging the auxiliary mechanism, it is ensured that the two ends of the catheter can form auxiliary fixation of the position of the catheter through cooperation of the positioning ring and the lantern ring, so that the bending amplitude of the catheter is limited, deviation of the catheter generated when a patient moves or touches the catheter is effectively avoided, and the use comfort of the patient is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of nephrology medical instruments, and in particular to a peritoneal dialysis positioner for nephrology. Background Art

[0002] Peritoneal dialysis is a treatment method that uses the patient's own peritoneum as a dialysis membrane to remove metabolic waste and excess water from the body. During the treatment, by injecting dialysate into the abdominal cavity, waste and excess water in the blood will enter the dialysate through the peritoneum, and then the peritoneal dialysis fluid will be connected to the peritoneal dialysis catheter external catheter, and then the valve will be opened to discharge the dialysate containing waste from the body. In order to ensure the installation of the operation, a special locator is now used to accurately locate the position of the dialysis tube or indwelling tube during peritoneal dialysis, thereby ensuring the effectiveness and safety of dialysis treatment.

[0003] The Chinese invention patent with the authorization announcement number CN110064085B discloses a peritoneal dialysis locator device for the Department of Nephrology, including a left fixing plate, a connecting belt, a fixing block, a slideway, a clamping plate, a telescopic ring, and an inner connecting rod. A strap is installed on one side of the left fixing plate, and a hardware is connected to one end of the strap close to the left fixing plate. The connecting belt is installed on one side of the left fixing plate, and a right fixing plate is installed on one end of the connecting belt away from the left fixing plate, and an adjustment belt is installed on one side of the right fixing plate away from the connecting belt. The device uses the left fixing plate and the right fixing plate so that when worn, it is clamped between the waist, thereby fixing and limiting the position of the patient's waist and achieving the positioning effect. Although the catheter and the patient can be roughly fixed as a whole during use, thereby improving the patient's comfort, due to the deformation characteristics of the catheter itself, the catheter is easily displaced due to touch or movement after being connected to the patient, which affects the patient's comfort, and the bending of the catheter may cause a certain degree of influence on the flow of the liquid, thereby affecting the final liquid extraction. Summary of the invention

[0004] In order to overcome the shortcomings of the above-mentioned prior art, the present invention provides a peritoneal dialysis positioner for nephrology, which is intended to effectively control the movement and bending amplitude of the catheter, so as to prevent the catheter from being excessively twisted or compressed, ensure the stable fixation of the catheter between the connecting ports, improve the comfort of the patient, and enhance the safety and effectiveness of the treatment.

[0005] The technical solution is: a peritoneal dialysis locator for nephrology, comprising:

[0006] The belt is a II-shaped belt;

[0007] The guide rails are symmetrically arranged on both sides of the middle of the waist belt, and the two sides of the guide rails that are far away from each other are arranged with convex rods in an interval manner;

[0008] The adjusting belt has one or more jacks on both sides of the adjusting belt that are matched with the number, size and shape of the convex rods on the same side, and the jacks are plugged and matched with the convex rods on the same side to fix the position of the adjusting belt. A limit ring is also provided on the adjusting belt, and a positioning ring for inserting and fixing the catheter is provided inside the limit ring;

[0009] The auxiliary mechanism is arranged on the adjustment belt. The auxiliary mechanism includes support plates symmetrically arranged on the adjustment belt. Straight grooves are provided on the two support plates. A group of upper and lower spaced abutment plates are respectively provided on the opposite sides of the two support plates. An extension plate that is slidably and rotatably provided in the straight groove and abuts against the abutment plate on the same side is respectively provided. A clamping groove is provided on the extension plate. A ring for sleeve-fixing the catheter is also provided between the two extension plates. Fixing parts are provided on the two support plates, and the fixing parts are clamped and matched with the clamping grooves on the extension plates on the same side.

[0010] Preferably, the fixing member includes wedge rods that pass through and are slidably arranged on the two support plates respectively, a connecting frame is arranged between the bottom ends of the two wedge rods, the top ends of the two wedge rods pass through the corresponding abutment plates on the lower side respectively and the two form a sliding fit, an elastic member I is arranged between the wedge rods and the support plates on the same side, and the wedge rods are snap-fitted with the card slots on the extension plates on the same side.

[0011] Preferably, a clamping mechanism is provided on the extension plate, and the clamping mechanism includes mounting blocks respectively arranged at the bottom of the two extension plates, and a contact block is also slidably provided on one end of the extension plate close to the collar, an elastic member II is provided between the contact block and the mounting block on the same side, and a push rod is provided on the side of the contact block facing the support plate, the push rod abuts against the adjacent abutment plate, and clamping plates are slidably provided through the extension plates, the clamping plates respectively pass through one side of the collar to fit the catheter to form a clamp, and an inclined plate is also provided on the clamping plate to contact and cooperate with the contact block on the same side.

[0012] Preferably, the belt is provided with a cooling mechanism, which includes a heat dissipation pipe arranged inside the belt, a connecting end is provided at the joint of the heat dissipation pipe, an air supply pipe is connected to the connecting end, and a fan is connected to the air supply pipe.

[0013] Preferably, a sealing ring is also included, and a sealing ring is arranged inside the limiting ring and tightly surrounds the catheter.

[0014] Preferably, the upper end surface of the sealing ring is in a surrounding petal shape, so as to be evenly arranged and fit the surface of the catheter to form a seal.

[0015] Preferably, the abutment plate on the same side is shorter at the top and longer at the bottom, and a certain distance is maintained between the end of the upper abutment plate facing the push rod and the straight groove to provide space and a fulcrum for the extension plate to rotate.

[0016] Preferably, Velcro is provided at both ends of the waist belt to cooperate with the deformation of the waist belt to form a closed loop.

[0017] The present invention overcomes the shortcomings of the prior art and can achieve the following beneficial effects:

[0018] 1. The present invention arranges an auxiliary mechanism and utilizes the sliding and rotating cooperation between the extension plate and the straight groove of the support plate to assist in fixing the catheter placed inside the collar. In addition, the use of the wedge-shaped rod further stabilizes the position of the extension plate, ensuring that the two ends of the catheter can form an auxiliary fixation of the catheter position through the cooperation of the positioning ring and the collar, so as to limit the bending amplitude of the catheter, prevent the catheter from being excessively twisted or compressed, effectively avoid the deviation of the catheter when the patient moves or touches it, and significantly improve the patient's comfort.

[0019] 2. The present invention adopts a II-shaped belt design, which surrounds the patient's body through the fulcrums formed at the upper and lower positions to form a fixed position. The spacing formed between the abdomen and the hips provides a more effective fixed positioning effect for the patient, while ensuring the comfort of wearing.

[0020] 3. Through the setting of the clamping mechanism, the present invention utilizes the coordinated operation of the push rod and the extension plate to make the contact block fit with the inclined plate, pushing the clamping plate to move toward the ring, thereby fixing both sides of the catheter. This continuous operation not only achieves further fixation of the catheter, but also significantly improves the overall comfort of use.

[0021] 4. The cooling mechanism provided in the present invention can improve the user experience of the patient. The fan blows air to the heat dissipation pipe to achieve cooling along the trajectory of the belt. This design makes the patient feel more comfortable during use and further improves the comfort of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 The figure is a schematic diagram of the use status of the waist belt and various mechanisms of the present invention.

[0024] Figure 3 It is a three-dimensional structural schematic diagram of components such as guide rails, convex rods and adjustment belts of the present invention.

[0025] Figure 4 It is a three-dimensional structural cross-sectional view of components such as a limit ring, a positioning ring and a sealing ring of the present invention.

[0026] Figure 5 It is a three-dimensional structural schematic diagram of each component of the auxiliary mechanism of the present invention.

[0027] Figure 6 It is a three-dimensional structural cross-sectional view of some components of the clamping mechanism of the present invention.

[0028] Figure 7 It is a three-dimensional structural schematic diagram of the push rod, clamping plate, inclined plate and other parts of the present invention.

[0029] Figure 8 It is a schematic diagram of the use status of the components of the auxiliary mechanism and the clamping mechanism of the present invention.

[0030] Fig. 9 It is a three-dimensional structural cross-sectional view of each component of the cooling mechanism of the present invention.

[0031] The marks in the accompanying drawings provided by the present invention are: 100-catheter, 1-belt, 2-guide rail, 21-convex rod, 3-adjusting belt, 31-jack, 32-limiting ring, 33-positioning ring, 34-sealing ring, 5-auxiliary mechanism, 51-support plate, 511-abutment plate, 52-straight groove, 53-extension plate, 531-slot, 54-ring, 55-wedge rod, 56-connecting frame, 57-elastic member I, 6-clamping mechanism, 61-mounting block, 62-contact block, 63-elastic member II, 64-push rod, 65-clamping plate, 66-inclined plate, 7-cooling mechanism, 71-heat dissipation pipe, 72-connecting end, 73-air supply pipe, 74-fan. DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0033] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. It should be noted that the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] Embodiment: A peritoneal dialysis locator for nephrology, such as Figure 1-Figure 5 As shown, including:

[0035] The belt 1 is a II-shaped belt body. The belt body parts at both ends of the belt 1 are elastic, so as to adapt to the wearing and use of different groups of people, thereby improving the overall adaptability and comfort of the device. When worn, it can provide a supporting fulcrum for the patient's abdomen to the hips, thereby stabilizing the position of the intermediate catheter 100 to avoid the deviation of the catheter 100, thereby improving the wearing comfort of the patient. Velcro is respectively provided at the left and right ends of the belt 1, so that after the belt 1 is deformed when worn, the belt 1 can be formed into a closed loop through the fitting of the Velcro, so as to fix the position when worn;

[0036] The guide rails 2 are symmetrically arranged on both sides of the middle of the waist belt 1. The two guide rails 2 are arranged at intervals on the sides away from each other to provide support for the subsequent fixing of components.

[0037] The adjusting strap 3, the left and right sides of the adjusting strap 3 are evenly provided with one or more jacks 31 that are adapted to the number, size, and shape of the convex rods 21 on the same side, and the jacks 31 are plugged and matched with the convex rods 21 on the same side to fix the position of the adjusting strap 3. Here, the two sides of the adjusting strap 3 are bent inward to provide space for the layout of the jacks 31, and the adjusting strap 3 is made of a material with a certain hardness and deformation ability, and can be designed with an internally embedded memory metal and an externally wrapped nylon material, so that the adjusting strap 3 can be bent and adjusted as needed, and can also be formed by a relatively fixed support for the catheter 100 by snap-fit ​​adaptation. A limiting ring 32 is also provided on the adjusting strap 3, and a positioning ring 33 for inserting and fixing the catheter 100 is provided in the limiting ring 32, thereby limiting the position of the catheter 100 so that it will not move easily during use, thereby achieving a positioning effect;

[0038] In a specific embodiment, a through hole is opened in the middle of the adjustment belt 3, and a hollow cylindrical structure passes through and is fixed in the through hole. The lower end of the hollow cylindrical structure is an annular step-shaped structure, and an annular limiting ring 32 is fixedly arranged corresponding to the step-shaped structure; the positioning ring 33 is fixedly arranged in the middle of the limiting ring 32;

[0039] The auxiliary mechanism 5 is arranged on the adjustment belt 3. The auxiliary mechanism 5 includes support plates 51 that are symmetrically arranged on the adjustment belt 3. Straight grooves 52 are provided on the two support plates 51. When worn, the straight grooves 52 are grooves along the upper and lower directions. A group of upper and lower spaced abutment plates 511 are respectively provided on the opposite sides of the two support plates 51. The two abutment plates 511 on the same side are in a state of being shorter on the upper and longer on the lower. The end of the upper abutment plate 511 facing the push rod 64 maintains a certain distance from the straight groove 52 to provide a space and fulcrum for the extension plate 53 to rotate. An extension plate 53 that abuts and cooperates with the abutment plate 511 on the same side is respectively slidably and rotatably provided in the straight groove 52. The end of the extension plate 53 extends downward to facilitate the subsequent loading of parts. The extension plate 53 is provided with a card slot 5 31. A ring 54 for sleeve-fixing the catheter 100 is also provided between the two extension plates 53, and fixing parts are provided on both support plates 51. The fixing parts are engaged with the card slot 531 on the extension plate 53 on the same side. The other end of the catheter 100 is surrounded and fixed by the ring 54, and the movable extension plate 53 is used to drive the catheter 100 to bend or straighten, so as to adjust the use state required by the patient. Then, the sleeve fixation formed by the positioning ring 33 and the ring 54 makes the position of the catheter 100 stable and the bending range limited, so as to ensure that the subsequent use is stable enough, so as to improve the patient's use experience, and provide a more stable environment for the flow of filtrate during the patient's dialysis process, so as to ensure the safety and comfort of the patient.

[0040] In a specific embodiment, the collar 54 is a hollow cylindrical tube, and the catheter 100 can pass through the collar 54 and be clamped in the collar 54; when the extension plate 53 is provided on one end side with a protrusion that matches the shape and size of the straight groove 52, it can slide in the straight groove 52; when the extension plate 53 slides along the straight groove 52, when the protrusion provided at one end of the extension plate 53 slides to the upper end of the straight groove 52, the fixed position of the catheter 100 on the collar 54 becomes shorter than the distance of the through hole of the adjusting belt 3, and the catheter is bent / bent; when the protrusion provided at one end of the extension plate 53 slides to the lower end of the straight groove 52, the fixed position of the catheter 100 on the collar 54 becomes longer than the distance of the through hole of the adjusting belt 3, and the catheter is straightened;

[0041] like Figure 5 and Figure 8As shown, the fixing member includes wedge rods 55 respectively passing through and slidably arranged on the two support plates 51, and a connecting frame 56 is arranged between the bottom ends of the two wedge rods 55, so that the two wedge rods 55 can operate synchronously, and the top ends of the two wedge rods 55 respectively pass through the corresponding abutment plates 511 on the lower side and the two form a sliding fit, and an elastic member I57 is arranged between the wedge rod 55 and the support plate 51 on the same side. In this embodiment, the elastic member I57 is a spring, which can provide elastic support for the movement of the wedge rod 55, and the wedge rod 55 is precisely engaged with the slot 531 on the extension plate 53 on the same side, ensuring that the extension plate 53 can be firmly fixed when it moves to the extreme position, thereby effectively stabilizing the position of the catheter 100.

[0042] The present invention engages the wedge rod 55 with the extension rod 53 to restrict the shape of the catheter 100 by means of a limiting method, so as to achieve a fixed bending, so that the catheter can be in a stable and non-loose state, and a fixed channel is provided for the filtrate to flow out for use. When the positioner structure of the present invention is adjusted, the engagement between the extension rod 53 and the wedge rod 55 can be released, so that the flexibility of adjustment can be achieved, thereby solving the problem of the catheter being easily misaligned due to touching or moving after being connected to the patient, and also improving the comfort of the patient.

[0043] like Figure 1 ,like Figure 6-Figure 8 As shown, a clamping mechanism 6 is provided on the extension plate 53, and the clamping mechanism 6 includes mounting blocks 61 respectively arranged at the bottom of the two extension plates 53, and a contact block 62 is also slidably provided on one end of the extension plate 53 close to the collar 54, and an elastic member II 63 is provided between the contact block 62 and the mounting block 61 on the same side. In this embodiment, the elastic member II 63 is a spring, and a push rod 64 is provided on the side of the contact block 62 facing the support plate 51, and the push rod 64 abuts against the adjacent abutment plate 511, specifically, abuts against the abutment plate 511 on the upper side, and a clamping plate 65 is slidably provided on each of the extension plates 53, and the clamping plates 65 pass through one side of the collar 54 respectively, In order to fit the catheter 100 to form a clamp, an inclined plate 66 is also provided on the clamping plate 65 to contact and cooperate with the contact block 62 on the same side. By using the cooperative action of the push rod 64 and the extension plate 53, the push rod 64 can be pushed to move through the contact between the push rod 64 and the abutment plate 511, and then the contact block 62 is driven to fit the inclined plate 66 and squeeze its inclined surface, thereby pushing the clamping plate 65, so that the clamping plates 65 can be close to each other and fit with the catheter 100, so as to clamp and fix. This coherent and integrated operation process not only adjusts the position of the catheter 100 synchronously, but also strengthens its clamping and fixing effect, and further stabilizes the position of the catheter 100. Such a design significantly improves the stability of the dialysis operation, thereby significantly improving the comfort and experience of patients during use.

[0044] In a specific embodiment, the clamping plate 65 is a long strip plate-like structure, and square protrusions are provided at both ends of one side of the plate-like structure, and the upper surface of the protrusions is also provided with anti-slip grooves; an inclined plate 66 is fixedly provided in the middle of the other side of the clamping plate 65, and the inclined plate 66 gradually thickens from top to bottom, and the contact block 62 can be close to the inclined plate 66 and slide up and down along it; a bolt-like fixing structure is provided on the other side of the clamping plate 65 relative to the position of the protrusion, which can fix the clamping plate 65 on the extension plate 53; when the position of the catheter 100 needs to be changed, the fixed extension plate is moved to the lower end, the force between the push rod 64 and the abutment plate gradually decreases or even the two are separated, and the contact block 62 is pulled back to the direction of the mounting block under the tension of the spring, and the contact block 62 slides from the thicker part of the inclined plate 66 to the thinner part, and the clamping force between the clamping plate 65 and the catheter 100 is weakened.

[0045] like Figure 1 , Figure 2 and Fig. 9 As shown, the waist belt 1 is provided with a cooling mechanism 7, which includes a heat dissipation pipe 71 arranged inside the waist belt 1. The heat dissipation pipe 71 is arranged along the internal track of the waist belt 1, and the heat dissipation pipe 71 is evenly provided with through holes for the circulation and discharge of airflow. A connecting end 72 is provided at the joint of the heat dissipation pipe 71, and an air supply pipe 73 is connected to the connecting end 72. The air supply pipe 73 and the connecting end 72 are in a detachable state, and a fan 74 is connected to the air supply pipe 73. The fan 74 is used to inject airflow into the heat dissipation pipe 71, so that the waist belt 1 can be injected with air, thereby achieving a cooling effect on the patient's skin contact surface, thereby further improving the overall comfort of use;

[0046] In a specific embodiment, when the connection end 72 is not connected to the gas delivery pipe 73, the heat dissipation pipe can also be sealed by a structure such as a dust plug to prevent dust and other objects from entering.

[0047] like Figure 4 As shown, a sealing ring 34 is also included. The interior of the limiting ring 32 is provided with a sealing ring 34 that surrounds and tightly fits the catheter 100. The upper end surface of the sealing ring 34 is in a surrounding petal shape, which is suitable for uniform layout and fits the surface of the catheter 100 to form a seal, so as to ensure that the catheter 100 forms an effective seal when in use to prevent leakage of liquid.

[0048] When the device is needed, the position of the adjusting belt 3 is first adjusted according to the position of the catheter 100, the bending parts on both sides of the adjusting belt 3 are opened, and then the position of the adjusting belt 3 is moved, and then the corresponding convex rods 21 are inserted through the insertion holes 31 on both sides of the adjusting belt 3, and then the bending parts are reset, so that the adjusting belt 3 is fixed between the guide rails 2 on both sides, and then the patient wraps the belt 1 around the abdomen, and then inserts the catheter 100 into the positioning ring 33, and then passes through the sealing ring 34 and enters the limiting ring 32, and then extends into the lower ring 54, and then uses the Velcro at both ends of the belt 1 to fit, so that the belt 1 can be closed and fixed on the patient. Because of the unique II-shaped design of the belt 1, its upper and lower positions can be adjusted. The extension plate 53 is then rotated to knock down the extension plate 53, which is then rotated on the straight groove 52 and then placed on the lower abutment plate 511, and then the extension plate 53 is pushed to slide on the straight groove 52, so that the push rod 64 is driven to operate synchronously, abutting against the two abutment plates 511 on the upper side, and synchronously pushing the connected contact block 62 to move with the sliding operation, and then the elastic member II 63 is stretched, and then the contact block 62 slides with the movement to fit the corresponding inclined plate 66, and squeezes the inclined surface of the inclined plate 66 to push the clamping plate 65, so that the clamping plate 65 is pushed The extension plate 53 moves into the collar 54 to clamp the two sides of the internal catheter 100. At the same time, during the sliding process of the extension plate 53, the extension plate 53 will contact the wedge rod 55 on the same side and squeeze the wedge rod 55 downward, and the elastic member I57 will deform accordingly. The connecting frame 56 will synchronously drive the wedge rods 55 on both sides to move downward. When the extension plate 53 moves to the end of the straight groove 52, the slot 531 will move to the top of the wedge rod 55 and provide space for the movement of the wedge rod 55. Then the elastic member I57 will reset, driving the wedge rod 55 to move up and reset, so that it will be clamped in the slot 531, so as to fix the position of the extension plate 53, and the extension plate 53 will just move to the end of the straight groove 52 of the support plate 51. , here, with the overall operation, the end of the catheter 100 will form a bend of a fixed arc, providing a stable channel for the circulation of the liquid, and its lower end will be fixed by the clamping plate 65 and the ring 54, so that the overall position of the catheter 100 forms a fixed shape to avoid position displacement during subsequent use; during use, in order to alleviate the discomfort of the patient during use, the fan 74 can also be started, the fan 74 fills the air supply pipe 73 with air, and then blows air to the belt 1 through the heat dissipation pipe 71 placed inside the belt 1, so that the wind can circulate along the shape of the belt 1, thereby cooling the patient's skin contact surface, alleviating the discomfort during use and improving the patient's comfort;After the equipment is used, the air pipe 73 and the fan 74 are removed from the connection end 72, and then the connection frame 56 is moved downward so that the wedge-shaped rods 55 on both sides can be moved downward to disengage from the extension plate 53, thereby releasing the clamping fixation. Then, the extension plate 53 can be pushed in the opposite direction to slide on the straight groove 52. As the movement progresses, the push rod 64 fits against the abutment plate 511 and gradually releases the support for the elastic member II 63. The elastic member II 63 is then reset, and then the contact block 62 is driven to move in the opposite direction on the inclined plate 66, so that the clamping plate 65 is released from the state of being squeezed by the contact block 62. The conduit 100 is then freed from the restriction of the clamping plate 65 and can move freely on the collar 54. After that, when the extension plate 53 moves to the initial end of the straight groove 52, the extension plate 53 can be flipped upward so that the whole is vertically erected. Then, the conduit 100 is straightened, and the waist belt 1 is loosened to take out the equipment. ;

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A peritoneal dialysis locator for nephrology, characterized in that: include: A waist belt (1), a guide rail (2), an adjustment belt (3) and an auxiliary mechanism (5); wherein: The waist belt (1) is a II-shaped belt body; The guide rail (2) is arranged in the middle of the belt body, and a protruding rod (21) is arranged on the guide rail (2); Insertion holes (31) are provided on both sides of the adjustment belt (3), and the insertion holes (31) are plugged into and matched with the protruding rods (21) to fix the position of the adjustment belt (3); The auxiliary mechanism (5) is arranged on the adjustment belt (3); the auxiliary mechanism (5) comprises a support plate (51) arranged on the adjustment belt (3); a straight groove (52) is provided on the support plate (51); a group of upper and lower spaced abutment plates (511) are provided on the support plate (51), and a slidable and rotatable extension plate (53) abutting against the abutment plate (511) is provided in the straight groove (52); a clamping groove (531) is provided on the extension plate (53), and a ring (54) for sleeve-mounting and fixing the catheter (100) is provided on the extension plate (53); a fixing piece is provided on the support plate (51), and the fixing piece is clamped and matched with the clamping groove (531) on the extension plate (53).

2. The peritoneal dialysis positioner for nephrology according to claim 1, characterized in that: The guide rails (2) are symmetrically arranged on both sides of the middle of the waist belt (1), and convex rods (21) are arranged in an interval manner on the sides of the two guide rails (2) that are away from each other; One or more insertion holes (31) having a size and shape matching that of the protruding rod (21) on the same side are evenly formed on both sides of the adjustment belt (3), and the insertion holes (31) are plugged into and matched with the protruding rod (21) on the same side to fix the position of the adjustment belt (3); The auxiliary mechanism (5) is arranged on the adjustment belt (3), and the auxiliary mechanism (5) comprises support plates (51) symmetrically arranged on the adjustment belt (3), and straight grooves (52) are provided on both support plates (51), and a group of upper and lower spaced abutment plates (511) are respectively arranged on the opposite sides of the two support plates (51), and an extension plate (53) is respectively slidably and rotatably arranged in the straight groove (52) and abuts against the abutment plate (511) on the same side, and a ring (54) for sleeve-mounting a fixed catheter (100) is arranged between the two extension plates (53); the fixing member is snap-fitted with the slot (531) on the extension plate (53) on the same side.

3. The peritoneal dialysis positioner for nephrology according to claim 1, characterized in that: A limiting ring (32) is provided on the adjustment belt (3), and a positioning ring (33) for inserting and fixing the catheter (100) is provided inside the limiting ring (32); Preferably, the positioner further comprises a sealing ring (34), wherein the sealing ring (34) surrounds and tightly adheres to the outside of the catheter (100) and is arranged inside the limiting ring (32).

4. The peritoneal dialysis positioner for nephrology according to claim 1, characterized in that: The fixing member comprises wedge-shaped rods (55) respectively passing through and slidably arranged on the two support plates (51); a connecting frame (56) is arranged between the bottom ends of the two wedge-shaped rods (55); the top ends of the two wedge-shaped rods (55) respectively pass through the corresponding abutment plates (511) on the lower side and the two form a sliding fit; an elastic member I (57) is arranged between the wedge-shaped rod (55) and the support plate (51) on the same side; the wedge-shaped rod (55) is snap-fitted with a slot (531) on the extension plate (53) on the same side.

5. The peritoneal dialysis positioner for nephrology according to claim 4, characterized in that: The extension plate (53) is provided with a clamping mechanism (6), and the clamping mechanism (6) includes mounting blocks (61) respectively arranged at the bottom of the two extension plates (53), and a contact block (62) is also slidably arranged on one end of the extension plate (53) close to the collar (54), and an elastic member II (63) is arranged between the contact block (62) and the mounting block (61) on the same side, and a push rod (64) is arranged on the side of the contact block (62) facing the support plate (51), and the push rod (64) is in contact with the adjacent abutment plate (511), and a clamping plate (65) is slidably arranged on the extension plate (53), and the clamping plate (65) passes through one side of the collar (54) respectively to fit the catheter (100) to form a clamp, and an inclined plate (66) is also arranged on the clamping plate (65) to contact and cooperate with the contact block (62) on the same side.

6. The peritoneal dialysis positioner for nephrology according to claim 5, characterized in that: The clamping plate (65) is a long strip plate-like structure, and square protrusions are arranged at both ends of one side of the plate-like structure, and the upper surface of the protrusions is also provided with anti-slip grooves; an inclined plate (66) is fixedly arranged in the middle of the other side of the clamping plate (65), and the inclined plate (66) gradually thickens from top to bottom, and the contact block (62) can be closely attached to the inclined plate (66) and slide up and down along it; a bolt-shaped fixing structure is arranged on the other side of the clamping plate (65) relative to the position of the protrusion, which can fix the clamping plate (65) on the extension plate (53).

7. The peritoneal dialysis positioner for nephrology according to claim 1, characterized in that: The waist belt (1) is provided with a cooling mechanism (7), the cooling mechanism (7) comprising a heat dissipation pipe (71) arranged inside the waist belt (1), a connecting end (72) is provided at the connection point of the heat dissipation pipe (71), an air supply pipe (73) is connected to the connecting end (72), and a fan (74) is connected to the air supply pipe (73).

8. The peritoneal dialysis positioner for nephrology according to claim 3, characterized in that: The upper end surface of the sealing ring (34) is in a surrounding petal shape, so as to be evenly arranged and fit the surface of the catheter (100) to form a seal.

9. The peritoneal dialysis positioner for nephrology according to claim 5, characterized in that: The support plate (511) on the same side is shorter at the top and longer at the bottom, and a certain distance is maintained between the end of the upper support plate (511) facing the push rod (64) and the straight groove (52) to provide space and a fulcrum for the extension plate (53) to rotate.

10. The peritoneal dialysis positioner for nephrology according to claim 1, characterized in that: The belt body parts at both ends of the waist belt (1) are elastic, and Velcro is respectively provided at the ends of the belt body parts to cooperate with the deformation of the waist belt (1) to form a closed loop.

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