A guide tube for peritoneal dialysis tube reset based on magnetic force control

Abstract

The application discloses a guide tube for peritoneal dialysis tube reset based on magnetic force control, which comprises a dialysate bag assembly, a dialysis tube, a magnetic control guide mechanism and a guide tube. The dialysate bag assembly comprises a liquid filling bag and a water outlet bag, which are connected with an inlet water pipe and an outlet water pipe respectively and then connected with the dialysis tube; the end of the dialysis tube is connected with the guide tube through a separator. The magnetic control guide mechanism comprises a rear end fixing ring, a nickel block, an arc-shaped elastic stainless steel sheet, a front end sleeve ring, a middle section fixing ring and a micro electromagnetic iron; the nickel block is embedded in the inner side of the stainless steel sheet, and the micro electromagnetic iron is arranged on the middle section fixing ring. The micro electromagnetic iron in different directions is powered on through a remote controller, the nickel block is adsorbed by a magnetic field to make the stainless steel sheet bend, the middle section of the guide tube is bent, the end of the guide tube is reversely changed in position, the flexible control of the position of the end of the guide tube in the abdominal cavity is realized, and the guide tube is used for peritoneal dialysis tube reset.

Description

Technical Field

[0001] This invention relates to the field of peritoneal dialysis guide tube technology, specifically to a guide tube for repositioning a peritoneal dialysis tube based on magnetic force control. Background Technology

[0002] In peritoneal dialysis treatment, the peritoneal dialysis catheter is a crucial component ensuring the smooth progress of the treatment, responsible for introducing dialysate into the patient's peritoneal cavity and draining waste fluid. However, in actual treatment, the peritoneal dialysis catheter may deviate from its ideal position due to factors such as changes in patient position or intestinal peristalsis, affecting the dialysis effect and, in severe cases, requiring catheter replacement, causing additional pain and financial burden to the patient. Traditional repositioning methods often rely on manual operation by medical staff based on experience, attempting to adjust the dialysis catheter position through external pressure or guiding tools. However, this method has significant limitations. Due to the complex internal structure of the human peritoneal cavity, it is difficult to accurately perceive the actual position and state of the dialysis catheter within the peritoneal cavity through external manipulation, making precise repositioning difficult. Furthermore, the operation may cause unnecessary damage to the patient's abdominal tissues and may increase the risk of infection due to repeated operations. Therefore, those skilled in the art have proposed a magnetically controlled peritoneal dialysis catheter repositioning guide tube solution that can solve the above-mentioned problems. Summary of the Invention

[0003] In view of the shortcomings mentioned above, this paper provides a technical solution for a peritoneal dialysis catheter repositioning guide tube based on magnetic force control.

[0004] The device includes a dialysate bag assembly, with a dialysis tubing connected to its front end. A guide tube is fixedly connected to the front end of the dialysis tubing, and a magnetically controlled guide mechanism is fixedly mounted on the outer surface of the guide tube. The dialysate bag assembly includes an inlet bag and an outlet bag, with an inlet pipe connected to the outlet end of the inlet bag and an outlet pipe connected to the inlet end of the outlet bag. The dialysis tubing includes an inlet connection pipe connected to the end of the inlet pipe and an outlet connection pipe fixedly connected to the end of the outlet pipe. The ends of the inlet connection pipe and the outlet connection pipe converge and are connected to a separator. The magnetically controlled guiding mechanism includes a rear-end fixing ring fixed to the rear section of the outer ring of the guiding tube, and a middle-section fixing ring fixed to the middle section of the outer ring of the guiding tube. Eight forward-extending arc-shaped elastic stainless steel sheets are fixed in a circular array on the outer surface of the rear-end fixing ring. A front end collar that is movably fitted onto the front section of the outer ring of the guiding tube is fixed to the front end of each arc-shaped elastic stainless steel sheet. Nickel blocks are fixed to the inner surface of each arc-shaped elastic stainless steel sheet. Eight miniature electromagnets that are attracted to the nickel blocks are fixed in a circular array on the outer surface of the middle-section fixing ring.

[0005] In the above technical solution, preferably: the inside of the infusion bag is filled with the solution required for dialysis, and the inside of the outlet bag is filled with the waste fluid discharged from the abdominal cavity after dialysis.

[0006] In the above technical solution, preferably, the front end port of the separator is fixedly connected to the rear end port of the guide tube.

[0007] In the above technical solution, preferably, the front end of the guide tube is inserted into the patient's abdominal cavity.

[0008] In the above technical solution, preferably: the arc-shaped elastic stainless steel sheet has an outwardly expanding arc shape, and the inner surface of the arc-shaped elastic stainless steel sheet is provided with a groove for the nickel block to be inlaid and fixed.

[0009] In the above technical solution, preferably, the arc-shaped elastic stainless steel sheets have a spacing between them that allows them to contract inward or expand outward.

[0010] In the above technical solution, preferably, the outer surface edges of the arc-shaped elastic stainless steel sheet are all rounded and chamfered.

[0011] In the above technical solution, preferably: the power supply terminal of the miniature electromagnet is connected to a power line running along the axis of the guide tube, and the miniature electromagnet is also equipped with a remote control to control its start / stop and current magnitude.

[0012] In the above technical solution, preferably: a plurality of spherical grooves are provided on the inner cavity sidewall of the front end collar, and a ball is movably embedded in the inside of each spherical groove, and the surface of the ball located outside the spherical groove contacts the outer ring surface of the guide tube.

[0013] In the above technical solution, preferably, the front end collar has a circular hole inside that is much larger than the diameter of the guide tube.

[0014] As can be seen from the above technical solution, the present invention provides a magnetically controlled peritoneal dialysis catheter repositioning guide tube, which, compared with the prior art, has the following beneficial effects: The magnetically controlled guiding mechanism in this technical solution uses a remote control to energize miniature electromagnets at different locations. The magnetic field attracts nickel blocks, causing an arc-shaped elastic stainless steel sheet to bend. This bends the middle section of the guiding tube and reverses the position of the end, allowing for flexible and precise control of the guiding tube's position within the patient's abdominal cavity. This facilitates the rapid location and repositioning of misaligned peritoneal dialysis catheters, improving repositioning efficiency and accuracy. The ball bearing inside the front collar contacts the guiding tube, reducing friction during sliding and ensuring smooth operation, minimizing damage to patient tissues. The device has a rational overall structure with tightly connected components. The dialysate bag assembly, dialysis tubing, and guiding tube work together to smoothly complete the input of dialysate and the discharge of waste fluid, providing reliable support for peritoneal dialysis treatment and improving patient experience and safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced and explained below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the overall structure of a peritoneal dialysis facility; Figure 2 This is a schematic diagram of the dialysis tubing. Figure 3 This is a schematic diagram of the manifold; Figure 4 This is a schematic diagram of a magnetically controlled guiding mechanism; Figure 5 This is a schematic diagram of a guide ring.

[0017] Appendix Figure 1 -Appendix Figure 5 The correspondence between the components is as follows: 1. Dialysis fluid bag assembly; 1-1. Filling fluid bag; 1-2. Outlet bag; 1-3. Outlet pipe; 1-4. Inlet pipe; 2. Dialysis tubing; 2-1. Inlet connection pipe; 2-2. Outlet connection pipe; 2-3. Separator; 3. Magnetic control guiding mechanism; 3-1. Rear end retaining ring; 3-2. Nickel block; 3-3. Arc-shaped elastic stainless steel sheet; 3-4. Front end collar; 3-5. Middle section retaining ring; 3-6. Miniature electromagnet; 3-7. Spherical groove; 3-8. Ball bearing; 4. Guide tube. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described below are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In order to provide a clearer explanation and description of the technical solutions and implementation methods of the present invention, the following describes specific embodiments that implement the preferred technical solutions of the present invention.

[0019] A specific implementation of a magnetically controlled peritoneal dialysis catheter repositioning guide tube is as follows: The overall structure of the guide tube mainly consists of a dialysate bag assembly 1, a dialysis tubing 2, a magnetically controlled guiding mechanism 3, and a guide tube 4. Before use, the assembly preparation of each component needs to be completed. First, the inlet bag 1-1 and outlet bag 1-2 in the dialysate bag assembly 1 are respectively filled with the solution required for dialysis and a space is reserved for receiving waste fluid discharged from the peritoneal cavity after dialysis. The outlet end of the inlet bag 1-1 is connected to the inlet tube 1-4, and the inlet end of the outlet bag 1-2 is connected to the outlet tube 1-3. Next, connect the inlet water connection pipe 2-1 in dialysis tubing 2 to the end port of inlet water pipe 1-4, and fix the outlet water connection pipe 2-2 to the end port of outlet water pipe 1-3. The ends of inlet water connection pipe 2-1 and outlet water connection pipe 2-2 converge and connect to separator 2-3. The front port of separator 2-3 is then fixedly connected to the rear port of guide tube 4. At this point, the dialysate bag assembly 1, dialysis tubing 2, and guide tube 4 are initially assembled. For the assembly of the magnetically controlled guide mechanism 3, fix the rear retaining ring 3-1 to the rear section of the outer ring of guide tube 4, and fix the middle retaining ring 3-5 to the middle section of the outer ring of guide tube 4. Eight arc-shaped elastic stainless steel sheets 3-3 are fixed in a ring array on the outer surface of the rear retaining ring 3-1. These arc-shaped elastic stainless steel sheets 3-3 all have an outwardly expanding arc shape, and there are gaps between them to allow them to contract inward or expand outward. At the same time, grooves are provided on the inner surface of each arc-shaped elastic stainless steel sheet 3-3, and nickel blocks 3-2 are embedded and fixed in these grooves. A front end collar 3-4 is fixed at the front end of the arc-shaped elastic stainless steel sheet 3-3, which is movably fitted onto the front section of the outer ring of the guide tube 4. The front end collar 3-4 has a circular hole with a diameter much larger than that of the guide tube 4. Multiple spherical grooves 3-7 are opened on the inner side wall of the front end collar 3-4. A ball bearing 3-8 is movably embedded in each spherical groove 3-7, and the surface of the ball bearing 3-8 on the outside of the spherical groove 3-7 is in contact with the outer surface of the guide tube 4. This ensures that the front end collar 3-4 can slide relatively smoothly on the guide tube 4. Eight miniature electromagnets 3-6 are fixed in a ring array on the outer surface of the middle section fixing ring 3-5. The power supply terminals of these miniature electromagnets 3-6 are all connected to power lines running along the axis of the guide tube 4. At the same time, a remote control is set up to control their start / stop and current magnitude. Thus, the entire magnetic control guide mechanism 3 is assembled and forms an integral structure with the guide tube 4.

[0020] Before inserting the guide tube 4 into the patient's abdominal cavity through the minimally invasive puncture site, the operator must manually squeeze the curved elastic stainless steel sheet 3-3 to make it close together and fit tightly against the outer ring of the guide tube 4. Because the curved elastic stainless steel sheet 3-3 is elastic, it will remain in an outwardly expanded state when not subjected to external force. Manually squeezing it deforms it, allowing the guide tube 4, along with the magnetically controlled guide mechanism 3, to smoothly enter the patient's abdominal cavity through the minimally invasive puncture site. Once the tip of the guide tube 4 is successfully inserted into the patient's abdominal cavity, the operator can control the energization of the miniature electromagnets 3-6 in different positions using a remote control. When a miniature electromagnet 3-6 in a certain position is energized, a magnetic field is generated, and the nickel block 3-2 at the corresponding position of that miniature electromagnet 3-6 will be magnetically attracted. Because the curved elastic stainless steel sheet 3-3 requires manual squeezing to deform, when the nickel block 3-2 is magnetically attracted, it forces the sheet to bend towards the attracted micro-electromagnet 3-6, thus causing the middle section of the guide tube 4 to bend in that direction. The end of the guide tube 4 will then change direction in the opposite direction due to the bending of the middle section. For example, when the micro-electromagnet 3-6 on the left is energized and attracts the corresponding nickel block 3-2, the curved elastic stainless steel sheet 3-3 bends to the left, the middle section of the guide tube 4 bends to the left accordingly, and its end changes direction to the right. The energization of the micro-electromagnets 3-6 in different positions can be flexibly controlled via a remote control, thereby achieving precise control of the position of the end of the guide tube 4 in the abdominal cavity. When the position of the end of the guide tube 4 needs to be adjusted, simply change the orientation of the energized micro-electromagnet 3-6 or adjust its current magnitude via the remote control to change the magnetic attraction, thereby moving the end of the guide tube 4 to the desired position and completing related operations such as peritoneal dialysis catheter repositioning. Throughout the operation, the front collar 3-4 slides on the guide tube 4 as the curved elastic stainless steel sheet 3-3 bends, while the ball bearing 3-8 rolls within the spherical groove 3-7, reducing friction between the front collar 3-4 and the guide tube 4 and ensuring the smooth operation of the magnetically controlled guiding mechanism 3. After the operation is complete, all miniature electromagnets 3-6 can be turned off via remote control, allowing the guide tube 4 to be slowly withdrawn from the patient's abdominal cavity.

[0021] Based on the above-described preferred technical solution, the workflow of this technical solution is explained as follows: The filling bag 1-1 in the dialysis bag assembly 1 is filled with the solution required for dialysis. The outlet bag 1-2 has space reserved for receiving waste fluid discharged from the peritoneal cavity after dialysis. The outlet end of the filling bag 1-1 is connected to the inlet pipe 1-4, and the inlet end of the outlet bag 1-2 is connected to the outlet pipe 1-3. Then, the inlet connection pipe 2-1 of the dialysis tubing 2 is connected to the end port of the inlet pipe 1-4, and the outlet connection... Pipe 2-2 is connected to the end port of outlet pipe 1-3. Then, the ends of inlet pipe 2-1 and outlet pipe 2-2 are connected to separator 2-3. The front port of separator 2-3 is connected to the rear port of guide tube 4, completing the initial assembly of dialysate bag assembly 1, dialysate tubing 2, and guide tube 4. Next, the magnetically controlled guide mechanism 3 is assembled. The rear retaining ring 3-1 is fixed to the rear section of the outer ring of guide tube 4, and the middle retaining ring 3-5 is fixed to the middle section of the outer ring of guide tube 4. Eight arc-shaped elastic stainless steel sheets 3-3 are fixed in a ring array on the outer surface of the rear fixing ring 3-1. These arc-shaped elastic stainless steel sheets 3-3 have an outward expansion arc shape and are spaced apart by inward contraction or outward expansion. Nickel blocks 3-2 are embedded and fixed in grooves on the inner surface of the arc-shaped elastic stainless steel sheets 3-3. A front end collar 3-4 is fixed at the front end of the arc-shaped elastic stainless steel sheets 3-3 and is movably fitted onto the front section of the outer ring of the guide tube 4. The front end collar 3-4 has a circular hole with a diameter much larger than that of the guide tube 4. Multiple spherical grooves 3-7 on the inner side wall of the collar are movably embedded with balls 3-8, so that the surface of the balls 3-8 on the outside of the spherical grooves 3-7 contacts the surface of the outer ring of the guide tube 4. Eight miniature electromagnets 3-6 are fixed in a ring array on the outer surface of the middle fixing ring 3-5. The power supply terminals of the miniature electromagnets 3-6 are connected to a power line running along the axis of the guide tube 4 and a remote control is provided to control their start / stop and current magnitude. This completes the assembly of the entire device.

[0022] Before inserting the guide tube 4 into the patient's abdominal cavity through the minimally invasive puncture site, the operator manually squeezes the curved elastic stainless steel sheets 3-3 to make them close together and fit tightly against the outer ring of the guide tube 4. This allows the guide tube 4, along with the magnetically controlled guide mechanism 3, to smoothly pass through the minimally invasive puncture site and enter the patient's abdominal cavity. Once the front section of the guide tube 4 is inside the patient's abdominal cavity, the operator uses a remote control to energize the miniature electromagnets 3-6 in different locations. When a miniature electromagnet 3-6 in a certain location is energized, it generates a magnetic field, and the nickel block 3-2 at the corresponding location is attracted by the magnetic force. Because the curved elastic stainless steel sheets 3-3 are elastic and need to be manually squeezed to deform, the magnetic attraction forces the curved elastic stainless steel sheets 3-3 to bend towards the attracted miniature electromagnet 3-6, causing the middle section of the guide tube 4 to bend in that direction. The end of the guide tube 4 then changes direction in the opposite direction. For example, when the miniature electromagnet 3-6 in the left position is energized and attracts the corresponding nickel block 3-2... The curved elastic stainless steel sheet 3-3 bends to the left, causing the middle section of the guide tube 4 to bend to the left as well. The end changes direction to the right. The energization of the miniature electromagnets 3-6 in different positions can be flexibly controlled by the remote control, enabling precise control of the position of the end of the guide tube 4 in the abdominal cavity. When it is necessary to adjust the position of the end of the guide tube 4, the remote control can be used to change the orientation of the energized miniature electromagnets 3-6 or adjust their current to change the magnetic attraction force, so that the end of the guide tube 4 can be moved to the required position to complete the peritoneal dialysis catheter repositioning and other related operations. During this process, the front collar 3-4 slides on the guide tube 4 as the curved elastic stainless steel sheet 3-3 bends, and the ball bearing 3-8 rolls in the spherical groove 3-7 to reduce the friction between the front collar 3-4 and the guide tube 4, ensuring that the magnetically controlled guiding mechanism 3 functions smoothly. After the operation is completed, all miniature electromagnets 3-6 are turned off by the remote control, and the guide tube 4 is slowly pulled out of the patient's abdominal cavity to complete the entire workflow.

[0023] This invention is not limited to the preferred embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Finally, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this application, should still fall within the scope of the technical content disclosed in this application.

Claims

1. A magnetically controlled peritoneal dialysis catheter repositioning guide tube, comprising a dialysate bag assembly (1), characterized in that: The front end of the dialysis bag assembly (1) is connected to a dialysis tubing (2), and the front end of the dialysis tubing (2) is fixedly connected to a guide tube (4). A magnetically controlled guide mechanism (3) is fixedly provided on the outer surface of the guide tube (4). The dialysate bag assembly (1) includes an inlet bag (1-1) and an outlet bag (1-2), and the outlet end of the inlet bag (1-1) is connected to an inlet pipe (1-4), and the inlet end of the outlet bag (1-2) is connected to an outlet pipe (1-3). The dialysis tubing (2) includes an inlet connection pipe (2-1) connected to the end port of the inlet pipe (1-4) and an outlet connection pipe (2-2) fixedly connected to the end port of the outlet pipe (1-3). The ends of the inlet connection pipe (2-1) and the outlet connection pipe (2-2) converge and are connected to a separator (2-3). The magnetically controlled guiding mechanism (3) includes a rear end fixing ring (3-1) fixed to the rear end of the outer ring of the guide tube (4) and a middle section fixing ring (3-5) fixed to the middle section of the outer ring of the guide tube (4). Eight forward-extending arc-shaped elastic stainless steel sheets (3-3) are fixed in a ring array on the outer ring surface of the rear end fixing ring (3-1). A front end collar (3-4) that is movably sleeved on the front end of the arc-shaped elastic stainless steel sheet (3-3) is fixed. Nickel blocks (3-2) are fixed on the inner surface of the arc-shaped elastic stainless steel sheet (3-3). Eight miniature electromagnets (3-6) that are attracted to the nickel blocks (3-2) are fixed in a ring array on the outer ring surface of the middle section fixing ring (3-5).

2. The guide tube for repositioning a peritoneal dialysis catheter based on magnetic force control according to claim 1, characterized in that: The infusion bag (1-1) is filled with the solution required for dialysis, and the outflow bag (1-2) is filled with the waste fluid discharged from the peritoneal cavity after dialysis.

3. The guide tube for repositioning a peritoneal dialysis catheter based on magnetic force control according to claim 1, characterized in that: The front end port of the separator (2-3) is fixedly connected to the rear end port of the guide tube (4).

4. The guide tube for repositioning a peritoneal dialysis catheter based on magnetic force control according to claim 1, characterized in that: The front end of the guide tube (4) is inserted into the patient's abdominal cavity.

5. A guide tube for repositioning a peritoneal dialysis catheter based on magnetic force control according to claim 1, characterized in that: The arc-shaped elastic stainless steel sheet (3-3) has an outwardly expanding arc shape, and the inner surface of the arc-shaped elastic stainless steel sheet (3-3) is provided with a groove for the nickel block (3-2) to be inlaid and fixed.

6. A guide tube for repositioning a peritoneal dialysis catheter based on magnetic force control according to claim 1, characterized in that: The arc-shaped elastic stainless steel sheets (3-3) have a spacing between them that allows them to contract inward or expand outward.

7. A guide tube for repositioning a peritoneal dialysis catheter based on magnetic force control according to claim 1, characterized in that: The outer surface edges of the arc-shaped elastic stainless steel sheet (3-3) are all rounded and chamfered.

8. A guide tube for repositioning a peritoneal dialysis catheter based on magnetic force control according to claim 1, characterized in that: The power supply terminals of the miniature electromagnets (3-6) are all connected to power lines running along the axis of the guide tube (4), and the miniature electromagnets (3-6) are also equipped with remote controls to control their start / stop and current magnitude.

9. A guide tube for repositioning a peritoneal dialysis catheter based on magnetic force control according to claim 1, characterized in that: The inner wall of the front end collar (3-4) is provided with multiple spherical grooves (3-7), and each spherical groove (3-7) is movably embedded with a ball (3-8), and the surface of the ball (3-8) outside the spherical groove (3-7) is in contact with the outer ring surface of the guide tube (4).

10. A guide tube for repositioning a peritoneal dialysis catheter based on magnetic force control according to claim 1, characterized in that: The front end collar (3-4) has a circular hole inside that is much larger than the diameter of the guide tube (4).

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