Auxiliary equipment for clinical peritoneal dialysis in nephrology department
By designing a side-mounted pressure pump and a filter cake tray for combined use, the problem of decreased dialysis membrane filtration capacity was solved, achieving continuous and rapid purification of the dialysis process, reducing patient suffering and equipment maintenance needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HENAN PROVINCE HOSPITAL OF TCM THE SECOND AFFILIATED HOSPITAL OF HENAN UNIV OF TCM
- Filing Date
- 2023-07-04
- Publication Date
- 2026-04-17
AI Technical Summary
In current peritoneal dialysis procedures, the filtration capacity of the dialysis membrane decreases as the filtration time increases, leading to the need for longer dialysis treatments and causing suffering for patients.
An auxiliary device for peritoneal dialysis in nephrology was designed. Through the structural design of a lateral pressure pump and a filter cake tray, blood filtration and purification are achieved. The device includes an inflatable inner liner, a lateral pressure pump, a filter cake tray, and a control motor working together. It can switch the filter port without replacing the dialysis membrane, maintaining dialysis capacity. The design of vibration and plug prevents blood leakage and impurity accumulation.
It enables the continuity of the dialysis process, reduces patient suffering, prevents blood leakage and impurity accumulation, and ensures the stability of filtration capacity and rapid blood transport.
Smart Images

Figure CN121868614A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of medical technology, specifically an auxiliary device for peritoneal dialysis in nephrology clinics. Background Technology
[0002] Peritoneal dialysis is a dialysis method that uses the body's own peritoneum as a dialysis membrane. Dialysis fluid infused into the peritoneal cavity exchanges solutes and water with plasma components in the capillaries on the other side of the peritoneum, removing retained metabolic waste products and excess water from the body. Simultaneously, the dialysis fluid replenishes essential substances, helping to control blood pressure and maintain proper balance of potassium, sodium, and bicarbonate in the body. By continuously replenishing the peritoneal dialysis fluid, the goal of renal replacement or supportive therapy is achieved.
[0003] Since peritoneal dialysis essentially replaces the kidneys in filtering a patient's blood to remove excess waste, the dialysis membrane used to filter the blood is prone to a decrease in filtration capacity as the filtration time increases. In such cases, the membrane cannot be replaced directly, requiring longer dialysis sessions and potentially multiple dialysis sessions, causing prolonged suffering for the patient. Summary of the Invention
[0004] To address the shortcomings of existing technologies, the technical solution adopted by this invention is as follows: an auxiliary device for peritoneal dialysis in nephrology clinical practice, comprising a dialysis box, wherein the inner wall of the dialysis box is provided with a lateral connecting tube, the bottom end of which is fixedly connected to the side of the inner wall of the dialysis box, and there are two lateral connecting tubes. An inflatable inner liner is fixedly connected to the inner wall of the lateral connecting tube, and an inflation tube is symmetrically arranged at the top of the inner wall of the inflatable inner liner. An external conduit is inserted at the axial position of the top of the inner wall of the inflatable inner liner, and a cap is fixedly connected to the top of the outer surface of the lateral connecting tube; a lateral pressure pump, wherein the lateral pressure pump... Two pressure pumps are used. The outer surface of the side-position pressure pump is uniformly fitted with a correction push plate, and the outer surface of the correction push plate is fixedly connected to the inner wall of the dialysis box. Before dialysis, the air-filled inner liner is inflated through the air-filling tube, which narrows the opening in the middle of the inner wall of the air-filled inner liner, further reducing the effective diameter of the device and preventing the problem of anemia caused by the extraction of a large amount of blood at one time. Then, the cap is inserted into the top of the external catheter. After the blood enters the side-position pressure pump, it enters the movable end through the water delivery tube and is injected into the inside of the outlet tube. During this process, the blood is filtered and dialyzed through the filter cake plate, thereby achieving purification.
[0005] Preferably, the inlet cylinder has its outer surface fixedly connected to the middle of the inner wall of the dialysis chamber. A water supply pipe is fixedly connected to the bottom left side of the inner wall of the inlet cylinder. A movable end is slidably connected to the right side of the outer surface of the water supply pipe. An outer rotating shell is rotatably connected to the right end of the outer surface of the inlet cylinder. A filter cake disc is provided in the middle of the inner wall of the outer rotating shell. An outlet pipe is evenly arranged on the right side of the outer surface of the filter cake disc. Expansion shells are provided on the front and rear sides of the middle of the inner wall of the dialysis chamber. A control motor is fixedly connected to the left side of the inner wall of the expansion shell. A sleeve gear is fixedly connected to the outer surface of the output shaft of the control motor. A fixed gear sleeve is meshed with the outer surface of the sleeve gear. The inner wall of the fixed gear sleeve is fixedly connected to the outer surface of the outer rotating shell. The movable end includes a fixed end. A drainage liner is slidably connected to the left side of the inner wall of the fixed end. A left plug is fixedly connected to the top of the inner wall of the drainage liner. A movable sleeve is slidably connected to the right end at the axis of the inner wall of the fixed end. A right plug is fixedly connected to the right side of the heart. When the dialysis capacity of a single filter port of the filter cake disc decreases after a long period of filtration, the filter port of the filter cake disc is switched. The control motor located on the inner wall of the expansion shell controls the sleeve gear to rotate 90 degrees through the output shaft. At this time, the outer rotating shell is pulled by the torsion of the fixed gear sleeve to rotate the side of the filter cake disc by a quarter turn, thereby switching the filter port of the actual dialysis blood. At this time, the movable sleeve slides out of the filter cake disc through the filter cake disc under the squeezing and pushing force of the outer surface of the filter cake disc. The movable sleeve slides towards the side of the fixed end. At this time, the right plug slides towards the left plug. When the movable sleeve slides out completely from the through port of the filter cake disc, the inner wall of the movable sleeve is close to the outer surface of the fixed end, and the right plug is also close to the left plug. At this time, the two plugs completely block the opening on the right side of the drainage inner liner, so the blood inside the drainage inner liner is blocked. After the filter cake disc rotates a quarter turn, the movable sleeve is re-inserted into the opening of the filter cake disc after the switch under the action of the spring.
[0006] Preferably, the left end of the fixed end is slidably connected to the right side of the outer surface of the water supply pipe, and the left side of the outer surface of the fixed end is fixedly connected to the left side of the inner wall of the inlet cylinder through a sleeve spring. The right side of the outer surface of the movable sleeve is slidably connected to the through-hole on the left side of the outer surface of the filter cake disc, and the left end of the movable sleeve is slidably connected to the right side of the outer surface of the drainage inner liner through a spring washer. After the device has been used for dialysis filtration for a period of time, the filtration capacity of the filter disc decreases after long-term operation. At this time, the filter disc is switched by controlling the motor to rotate the filter cake disc, thereby ensuring that the device can work with good dialysis filtration capacity. Moreover, the operation is simple and does not require opening the device to directly change the filter, thus ensuring the continuity of dialysis work and enabling patients to quickly end dialysis treatment and reduce their suffering.
[0007] Preferably, the outer surfaces of the sleeve gear are symmetrically provided with expansion outer discs, and the outer surfaces of the expansion outer discs are slidably connected to the side of the fixed gear sleeve. The inner wall of the expansion shell is slidably connected to the side of the expansion outer discs, and the outer surface of the expansion shell is fixedly connected to the middle of the inner wall of the dialysis chamber. During the switching of the filter baffle, the movable end needs to be briefly separated from the filter cake plate. At this time, the blood inside the movable end may be sprayed from the nozzle on the right side of the movable end to the outside of the device, resulting in blood leakage. When the device switches the filter baffle, the left and right plugs on both sides close together, thereby blocking the opening at the right end of the drainage inner liner, effectively preventing the problem of blood overflowing from the movable end. Furthermore, the movable sleeve can block the through-hole on the left side of the filter cake plate after the switching is completed, further preventing leakage.
[0008] Preferably, the filter cake tray includes a guide rail, with a sliding groove evenly formed in the middle of the inner wall of the guide rail. Filter baffles are evenly arranged in the middle of the inner wall of the guide rail through the sliding groove. Grooves are evenly formed on both the upper and lower sides of the middle of the inner wall of the guide rail through the sliding groove. Through-holes are symmetrically formed on the upper and lower sides of the inner wall of the filter cake tray. A central rod is fixedly connected to the axis of the inner wall of the filter cake tray. The central rod includes an upper connecting rod. A vertical rotating rod is rotatably connected to the lower surface of the upper connecting rod away from the central rod. A tension spring is fixedly connected to the middle of the outer surface of the vertical rotating rod near the central rod. An arc-shaped thrust plate is slidably connected to the bottom end of the vertical rotating rod. Because the filter cake tray is vertical inside this device, the position... The bottom filter baffle, under its own weight and the thrust of the vertical rotating rod, will block the bottom through-hole. At this time, the blood passing through the right plug will pass through the filter baffle directly below to achieve filtration and dialysis. When the filter baffle rotates to the top, it will move downward under its own weight. At this time, the upper arc-shaped thrust plate bears the weight and squeezes the vertical rotating rod on the corresponding side. The vertical rotating rod rotates towards the side closer to the center rod, and the tension spring is compressed. The filter baffle, which is inside the through-hole, slides down along the inner wall of the guide rail through the sliding side groove. During this process, the spring protrusion on the side of the filter baffle slides continuously against the inner wall of the groove. Therefore, the filter baffle vibrates continuously during its downward movement, thereby shaking off impurities in the gaps of the filter baffle.
[0009] Preferably, the side of the outer surface of the arc-shaped thrust plate away from the central rod is fixedly connected to the side of the filter baffle. Both sides of the filter baffle are symmetrically provided with spring protrusions through sliding arms. The end of the tension spring away from the vertical rotating rod is fixedly connected to the outer surface of the central rod. During the rotation and switching of the filter cake disc, the filter baffle that is switched to the top vibrates continuously as it slides down, thereby shaking off impurities in the gaps of the filter baffle. This prevents impurities in the blood from getting stuck in the gaps between the filter baffle and the filter cake disc during continuous operation, which would cause the filter baffle to stick to the inside of the filter cake disc and be difficult to remove during long-term operation.
[0010] Preferably, the side-mounted pressurizing pump includes a through-shell. Rotary motors are symmetrically arranged on the upper and lower sides of the outer surface of the through-shell. A long rotating rod is fixedly connected to the top of the output shaft of the rotating motor, and rotating plates are evenly arranged on the outer surface of the long rotating rod. Compression sleeves are symmetrically arranged on the upper and lower sides of the inner wall of the through-shell. To help the suction device quickly extract blood, side-mounted pressurizing pumps are arranged on the left and right sides of the inner wall of the device. During operation, the rotating motors on the upper and lower sides provide torque to the long shaft, causing the rotating plates on the outer surface of the long shaft to rotate. At this time, the rotating plate on the left side, during rotation, draws external blood into the through-shell, accelerating the blood flow into the water pipe. The rotating plate on the right side, during rotation, draws blood out of the outlet pipe, thus cooperating with the external suction device to achieve rapid blood transport.
[0011] Preferably, there are four rotating plates. Side rods are symmetrically arranged on the upper and lower sides of the outer surface of each rotating plate. The outer surface of each side rod is slidably connected to the side of the outer surface of the compression sleeve away from the through-shell. External fixing arms are symmetrically arranged on the outer surface of the rotating motor housing. A through-hole is opened in the middle of the inner wall of the side-mounted pressurizing pump. Both sides of the through-shell extend to the outside of the side-mounted pressurizing pump through the through-hole, and the outer surface of the external fixing arm is fixedly connected to the inner wall of the side-mounted pressurizing pump. During the rotation of the rotating plates, the side rods on the upper and lower sides of the rotating plates periodically press against the outer surface of the compression sleeve. Because the position of the rotating plates is fixed, the compression sleeve deforms due to the pressing action of the side rods, and then stretches back to its original shape under its own internal air pressure. This scrapes away the blood on the upper and lower sides of the inner wall of the through-shell, preventing blood and impurities from accumulating in the gaps of the inner wall of the through-shell and causing blockage.
[0012] The beneficial effects of this invention are as follows:
[0013] 1. After a period of dialysis filtration using this device, the filtration capacity of the filter disc decreases due to prolonged use. At this point, the motor is controlled to rotate the filter disc, switching the filter disc used for filtration. This ensures that the device can operate with good dialysis filtration capacity. The operation is simple and does not require opening the device to change the filter disc, thus ensuring the continuity of dialysis and allowing patients to quickly end dialysis treatment, thereby reducing their suffering.
[0014] 2. During the switching of the filter baffle, the movable end needs to be briefly separated from the filter cake plate. At this time, the blood inside the movable end may spray out of the nozzle on the right side of the movable end and onto the outside of the device, resulting in blood leakage. However, when the filter baffle is switched, the left and right plugs on both sides close together, thereby blocking the opening on the right side of the drainage liner, effectively preventing the blood inside the movable end from overflowing. Furthermore, the movable sleeve can block the through-hole on the left side of the filter cake plate after the switching is completed, further preventing leakage.
[0015] 3. During the rotation and switching of the filter cake tray, the filter baffle that is switched to the top vibrates continuously as it slides down, thereby shaking off impurities in the gaps of the filter baffle. This prevents impurities in the blood from getting stuck in the gaps between the filter baffle and the filter cake tray during continuous operation, which would cause the filter baffle to stick to the inside of the filter cake tray and become difficult to remove over a long period of time.
[0016] 4. To facilitate rapid blood extraction by the suction device, side-mounted pressure pumps are installed on the left and right sides of the inner wall of the device. During operation, the rotating motors on the upper and lower sides provide torque to the long shaft, causing the rotating plate on the outer surface of the long shaft to rotate. At this time, the rotating plate on the left side draws blood from the outside into the through-shell during rotation, accelerating the blood into the water delivery pipe. The rotating plate on the right side draws blood from the outlet pipe during rotation, thus cooperating with the external suction device to achieve rapid blood transport.
[0017] 5. The rotating motor can control the rotation of the rotating plate, thereby controlling the diameter of the through-hole in the shell, so as to achieve the effect of timely deceleration and extraction, and prevent the problem of the patient's body discomfort caused by the extraction speed being too fast. The side rod head will periodically compress the soft sleeve, and the reciprocating motion of the compression soft sleeve will scrape the blood on the upper and lower sides of the inner wall of the through-hole, preventing blood and impurities from accumulating in the gaps of the inner wall of the through-hole and causing blockage problems. Attached Figure Description
[0018] Figure 1 This is the front view of the present invention;
[0019] Figure 2 This is a cross-sectional view of the present invention;
[0020] Figure 3 This is a schematic diagram of the internal structure of the extended shell of the present invention;
[0021] Figure 4 This is a cross-sectional view of the active end of the present invention;
[0022] Figure 5 This is a cross-sectional view of the filter cake tray of the present invention;
[0023] Figure 6 This is a partial structural schematic diagram of the filter cake tray of the present invention;
[0024] Figure 7 This is a schematic diagram of the structure of the central rod of the present invention;
[0025] Figure 8 This is a schematic diagram of the side-mounted pressurization pump of the present invention.
[0026] In the diagram: 1. Dialysis box; 2. Lateral connection tube; 21. External conduit; 22. Cap; 23. Inflatable inner liner; 24. Inflating tube; 11. Inlet cylinder; 12. Outlet tube; 13. Water supply tube; 14. External rotating shell; 3. Expansion shell; 31. Control motor; 32. Sleeve gear; 33. Fixed gear sleeve; 4. Movable end; 41. Fixed end; 42. Drainage inner liner; 43. Movable sleeve; 44. Left 45. Right plug; 6. Filter cake tray; 61. Guide rail; 62. Groove; 63. Through-hole; 64. Filter baffle; 65. Spring protrusion; 7. Center rod; 71. Upper connecting rod; 72. Vertical rotating rod; 73. Tension spring; 74. Arc-shaped thrust plate; 5. Side pressure pump; 51. Through-shell; 52. Rotating motor; 53. Rotating plate; 54. Compression sleeve; 55. Side rod head. Detailed Implementation
[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.
[0028] Example 1
[0029] Please see Figures 1-4This invention provides a technical solution: an auxiliary device for peritoneal dialysis in nephrology, comprising a dialysis box 1, a lateral connecting tube 2 provided on the inner wall of the dialysis box 1, the bottom end of the lateral connecting tube 2 being fixedly connected to the side of the inner wall of the dialysis box 1, two lateral connecting tubes 2, an inflatable inner liner 23 fixedly connected to the inner wall of the lateral connecting tube 2, an inflation tube 24 symmetrically provided on the top of the inner wall of the inflatable inner liner 23, an external conduit 21 inserted at the axial position of the top of the inner wall of the inflatable inner liner 23, a cap 22 fixedly connected to the top of the outer surface of the lateral connecting tube 2; and two lateral pressure pumps 5, two of which have a correction push plate evenly snapped onto the outer surface of the lateral pressure pump 5, and the outer surface of the correction push plate being fixedly connected to the inner wall of the dialysis box 1;
[0030] The liquid inlet cylinder 11 is fixedly connected to the middle of the inner wall of the dialysis chamber 1 on its outer surface. A water supply pipe 13 is fixedly connected to the bottom left side of the inner wall of the liquid inlet cylinder 11. A movable end 4 is slidably connected to the right side of the outer surface of the water supply pipe 13. An external rotating shell 14 is rotatably connected to the right end of the outer surface of the liquid inlet cylinder 11. A filter cake plate 6 is provided in the middle of the inner wall of the external rotating shell 14. An outlet pipe 12 is evenly arranged on the right side of the outer surface of the filter cake plate 6.
[0031] An expansion shell 3 is provided on the front and rear sides of the middle of the inner wall of the dialysis box 1. A control motor 31 is fixedly connected to the left side of the inner wall of the expansion shell 3. A sleeve gear 32 is fixedly connected to the outer surface of the output shaft of the control motor 31. A fixed tooth sleeve 33 is meshed with the outer surface of the sleeve gear 32. The inner wall of the fixed tooth sleeve 33 is fixedly connected to the outer surface of the outer rotating shell 14.
[0032] The movable end 4 includes a fixed end 41, a drainage inner liner 42 is slidably connected to the left side of the inner wall of the fixed end 41, a left plug 44 is fixedly connected to the top of the inner wall of the drainage inner liner 42, a movable sleeve 43 is slidably connected to the right end of the inner wall of the fixed end 41 at the axis, and a right plug 45 is fixedly connected to the right side of the inner wall of the movable sleeve 43 at the axis.
[0033] The left end of the fixed end 41 is slidably connected to the right side of the outer surface of the water supply pipe 13. The left side of the outer surface of the fixed end 41 is fixedly connected to the left side of the inner wall of the liquid inlet cylinder 11 through a sleeve spring. The right side of the outer surface of the movable sleeve 43 is slidably connected to the through-hole on the left side of the outer surface of the filter cake plate 6. The left end of the movable sleeve 43 is slidably connected to the right side of the outer surface of the drainage inner liner 42 through a spring washer.
[0034] The outer surfaces of the sleeve gear 32 are symmetrically provided with expansion outer disks, and the outer surfaces of the expansion outer disks are slidably connected to the side of the fixed gear sleeve 33. The inner wall of the expansion shell 3 is slidably connected to the side of the expansion outer disk, and the outer surface of the expansion shell 3 is fixedly connected to the middle of the inner wall of the dialysis box 1.
[0035] When using this device to perform dialysis treatment on a patient, the patient's blood is drawn through the external catheter 21 on the left side. The blood containing waste is drawn into the device for filtration and then drawn out through the external catheter 21 on the right side and returned to the patient's body, thereby achieving dialysis.
[0036] Before dialysis, the air-filled inner liner 23 is inflated through the air-filled tube 24, which reduces the opening in the middle of the inner wall of the inner liner 23, further reducing the effective diameter of the device and preventing the patient from becoming anemic due to the extraction of a large amount of blood at once. Then, the cap 22 is inserted into the top of the external catheter 21. After the blood enters the side-positioned pressure pump 5, it enters the movable end 4 through the water delivery tube 13 and is injected into the inside of the outlet tube 12. During this process, the blood is filtered and dialyzed through the filter cake plate 6, thereby achieving purification.
[0037] When the dialysis capacity of a single filter port of the filter cake tray 6 decreases after prolonged filtration, the filter port of the filter cake tray 6 is switched. The control motor 31, located on the inner wall of the expansion shell 3, controls the sleeve gear 32 to rotate 90 degrees via its output shaft. At this time, the outer rotating shell 14, under the torsional action of the fixed gear sleeve 33, pulls the side of the filter cake tray 6 to rotate a quarter turn, thereby switching the filter port for the actual dialysis blood. Meanwhile, the movable sleeve 43 slides out of the through-hole of the filter cake tray 6 under the squeezing and pushing force on the outer surface of the filter cake tray 6. 3. Slide towards the side of the fixed end 41. At this time, the right plug 45 slides towards the left plug 44. When the movable sleeve 43 slides out completely from the through hole of the filter cake plate 6, the inner wall of the movable sleeve 43 is in close contact with the outer surface of the fixed end 41, and the right plug 45 is also in close contact with the left plug 44. At this time, the two plugs completely block the opening on the right side of the drainage inner liner 42, so the blood inside the drainage inner liner 42 is blocked. After the filter cake plate 6 rotates a quarter turn, the movable sleeve 43 is reinserted into the opening of the filter cake plate 6 after switching under the action of the spring.
[0038] Example 2
[0039] Please see Figures 1-8 The present invention provides a technical solution: Based on Embodiment 1, an auxiliary device for peritoneal dialysis in nephrology includes a dialysis box 1, a lateral connecting tube 2 provided on the inner wall of the dialysis box 1, the bottom end of the lateral connecting tube 2 being fixedly connected to the side of the inner wall of the dialysis box 1, two lateral connecting tubes 2, an inflatable inner liner 23 fixedly connected to the inner wall of the lateral connecting tube 2, an inflation tube 24 symmetrically provided on the top of the inner wall of the inflatable inner liner 23, an external conduit 21 inserted at the axial position of the top of the inner wall of the inflatable inner liner 23, a cap 22 fixedly connected to the top of the outer surface of the lateral connecting tube 2; and two lateral pressure pumps 5, two of which have a correction push plate evenly snapped onto the outer surface of the lateral pressure pump 5, and the outer surface of the correction push plate being fixedly connected to the inner wall of the dialysis box 1.
[0040] The liquid inlet cylinder 11 is fixedly connected to the middle of the inner wall of the dialysis chamber 1 on its outer surface. A water supply pipe 13 is fixedly connected to the bottom left side of the inner wall of the liquid inlet cylinder 11. A movable end 4 is slidably connected to the right side of the outer surface of the water supply pipe 13. An external rotating shell 14 is rotatably connected to the right end of the outer surface of the liquid inlet cylinder 11. A filter cake plate 6 is provided in the middle of the inner wall of the external rotating shell 14. An outlet pipe 12 is evenly arranged on the right side of the outer surface of the filter cake plate 6.
[0041] An expansion shell 3 is provided on the front and rear sides of the middle of the inner wall of the dialysis box 1. A control motor 31 is fixedly connected to the left side of the inner wall of the expansion shell 3. A sleeve gear 32 is fixedly connected to the outer surface of the output shaft of the control motor 31. A fixed tooth sleeve 33 is meshed with the outer surface of the sleeve gear 32. The inner wall of the fixed tooth sleeve 33 is fixedly connected to the outer surface of the outer rotating shell 14.
[0042] The movable end 4 includes a fixed end 41, a drainage inner liner 42 is slidably connected to the left side of the inner wall of the fixed end 41, a left plug 44 is fixedly connected to the top of the inner wall of the drainage inner liner 42, a movable sleeve 43 is slidably connected to the right end of the inner wall of the fixed end 41 at the axis, and a right plug 45 is fixedly connected to the right side of the inner wall of the movable sleeve 43 at the axis.
[0043] The left end of the fixed end 41 is slidably connected to the right side of the outer surface of the water supply pipe 13. The left side of the outer surface of the fixed end 41 is fixedly connected to the left side of the inner wall of the liquid inlet cylinder 11 through a sleeve spring. The right side of the outer surface of the movable sleeve 43 is slidably connected to the through-hole on the left side of the outer surface of the filter cake plate 6. The left end of the movable sleeve 43 is slidably connected to the right side of the outer surface of the drainage inner liner 42 through a spring washer.
[0044] The outer surfaces of the sleeve gear 32 are symmetrically provided with expansion outer disks, and the outer surfaces of the expansion outer disks are slidably connected to the side of the fixed gear sleeve 33. The inner wall of the expansion shell 3 is slidably connected to the side of the expansion outer disk, and the outer surface of the expansion shell 3 is fixedly connected to the middle of the inner wall of the dialysis box 1.
[0045] The filter cake tray 6 includes a guide rail 61. A sliding groove is evenly provided in the middle of the inner wall of the guide rail 61. A filter baffle 64 is evenly provided in the middle of the inner wall of the guide rail 61 through the sliding groove. Grooves 62 are evenly provided in the upper and lower sides of the middle of the inner wall of the guide rail 61 through the sliding groove. Through-holes 63 are symmetrically provided in the upper and lower sides of the inner wall of the filter cake tray 6. A central rod 7 is fixedly connected at the axis of the inner wall of the filter cake tray 6.
[0046] The center rod 7 includes an upper connecting rod 71. A vertical rotating rod 72 is rotatably connected to the lower surface of the upper connecting rod 71 away from the center rod 7. A tension spring 73 is fixedly connected to the middle of the outer surface of the vertical rotating rod 72 near the center rod 7. An arc-shaped thrust plate 74 is slidably connected to the bottom end of the vertical rotating rod 72.
[0047] The side of the outer surface of the arc-shaped thrust plate 74 away from the center rod 7 is fixedly connected to the side of the filter baffle 64. Both sides of the filter baffle 64 are symmetrically provided with spring protrusions 65 through sliding arms. The end of the tension spring 73 away from the vertical rotating rod 72 is fixedly connected to the outer surface of the center rod 7.
[0048] The side-mounted pressurizing pump 5 includes a through shell 51. Rotary motors 52 are symmetrically arranged on the upper and lower sides of the outer surface of the through shell 51. A long rotating rod is fixedly connected to the top of the output shaft of the rotating motor 52, and rotating plates 53 are evenly arranged on the outer surface of the long rotating rod. Compression sleeves 54 are symmetrically arranged on the upper and lower sides of the inner wall of the through shell 51.
[0049] There are four rotating plates 53. Side rods 55 are symmetrically arranged on the upper and lower sides of the outer surface of the rotating plate 53. The outer surface of the side rods 55 is slidably connected to the outer surface of the compression sleeve 54 away from the through shell 51. External fixing arms are symmetrically arranged on the outer surface of the housing of the rotating motor 52.
[0050] A through-hole 63 is provided in the middle of the inner wall of the side-position pressurizing pump 5. Both sides of the through-hole shell 51 extend to the outside of the side-position pressurizing pump 5 through the through-hole 63, and the outer surface of the external fixed arm is fixedly connected to the inner wall of the side-position pressurizing pump 5.
[0051] Because the filter disc 6 inside the device is vertical, the bottom filter baffle 64 will block the bottom through-hole under its own weight and the thrust of the vertical rotating rod 72. At this time, the blood through the right plug 45 will pass through the filter baffle 64 directly below to achieve filtration and dialysis. When the filter baffle 64 rotates to the top, it will move downward under its own weight. At this time, the upper arc-shaped thrust plate 74 bears the weight and squeezes the vertical rotating rod 72 on the corresponding side. The vertical rotating rod 72 rotates towards the side closer to the center rod 7, and the tension spring 73 is compressed. The filter baffle 64, which is inside the through-hole 63, slides down along the inner wall of the guide rail 61 through the sliding side groove. During this process, the spring protrusion 65 on the side of the filter baffle 64 slides continuously on the inner wall of the groove 62. Therefore, the filter baffle 64 vibrates continuously during the downward movement, thereby shaking off the impurities in the gaps of the filter baffle 64.
[0052] To help the suction device quickly extract blood, side-mounted pressure pumps 5 are installed on the left and right sides of the inner wall of the device. When working, the rotating motors 52 on the upper and lower sides provide torque to the long shaft, causing the rotating plate 53 on the outer surface of the long shaft to rotate. At this time, the rotating plate 53 on the left side draws the external blood into the interior of the through shell 51 during rotation, so that the blood enters the water delivery pipe 13 at an accelerated speed. The rotating plate 53 on the right side draws the blood out of the outlet pipe 12 during rotation, thus cooperating with the external suction device to achieve rapid blood transportation.
[0053] During the rotation of the rotating plate 53, the side rods 55 on the upper and lower sides of the rotating plate 53 will periodically press against the outer surface of the compression sleeve 54. Since the position of the rotating plate 53 is fixed, the compression sleeve 54 will deform due to the pressing action of the side rods 55, and then stretch back to its original shape under the action of its own internal air pressure, thereby scraping away the blood on the upper and lower sides of the inner wall of the through shell 51, and preventing blood and impurities from accumulating in the gaps of the inner wall of the through shell 51 and causing blockage.
[0054] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. An auxiliary device for peritoneal dialysis in nephrology clinics, comprising a dialysis box (1), characterized in that The inner wall of the dialysis box (1) is provided with, Side connecting tube (2), the bottom end of which is fixedly connected to the side of the inner wall of the dialysis box (1), there are two side connecting tubes (2), an air-filled inner liner (23) is fixedly connected to the inner wall of the side connecting tube (2), an air-filled tube (24) is symmetrically arranged on the top of the inner wall of the air-filled inner liner (23), an external conduit (21) is inserted into the axis at the top of the inner wall of the air-filled inner liner (23), and a cap (22) is fixedly connected to the top of the outer surface of the side connecting tube (2); Side-position pressurization pump (5), there are two side-position pressurization pumps (5), the outer surface of the side-position pressurization pump (5) is uniformly clamped with a correction push plate, and the outer surface of the correction push plate is fixedly connected to the inner wall of the dialysis box (1). The liquid inlet cylinder (11) is fixedly connected to the middle of the inner wall of the dialysis box (1) on its outer surface. A water supply pipe (13) is fixedly connected to the bottom of the left side of the inner wall of the liquid inlet cylinder (11). A movable end (4) is slidably connected to the right side of the outer surface of the water supply pipe (13). An external rotating shell (14) is rotatably connected to the right end of the outer surface of the liquid inlet cylinder (11). A filter cake plate (6) is provided in the middle of the inner wall of the external rotating shell (14). An outlet pipe (12) is evenly provided on the right side of the outer surface of the filter cake plate (6). The dialysis box (1) has an expansion shell (3) on the front and rear sides of the middle of the inner wall. A control motor (31) is fixedly connected to the left side of the inner wall of the expansion shell (3). A sleeve gear (32) is fixedly connected to the outer surface of the output shaft of the control motor (31). A fixed tooth sleeve (33) is meshed with the outer surface of the sleeve gear (32). The inner wall of the fixed tooth sleeve (33) is fixedly connected to the outer surface of the outer rotating shell (14). The movable end (4) includes a fixed end (41), a drainage liner (42) is slidably connected to the left side of the inner wall of the fixed end (41), a left plug (44) is fixedly connected to the top of the inner wall of the drainage liner (42), a movable sleeve (43) is slidably connected to the right end of the inner wall of the fixed end (41) at the axis, and a right plug (45) is fixedly connected to the right side of the inner wall of the movable sleeve (43) at the axis.
2. The auxiliary device for peritoneal dialysis in nephrology clinics according to claim 1, characterized in that: The left end of the fixed end (41) is slidably connected to the right side of the outer surface of the water supply pipe (13). The left side of the outer surface of the fixed end (41) is fixedly connected to the left side of the inner wall of the liquid inlet cylinder (11) through a sleeve spring. The right side of the outer surface of the movable sleeve (43) is slidably connected to the through-hole on the left side of the outer surface of the filter cake plate (6). The left end of the movable sleeve (43) is slidably connected to the right side of the outer surface of the drainage inner liner (42) through a spring washer.
3. The auxiliary device for peritoneal dialysis in nephrology clinics according to claim 1, characterized in that: The outer surfaces of the sleeve gear (32) are symmetrically provided with extended outer disks, and the outer surfaces of the extended outer disks are slidably connected to the side of the fixed gear sleeve (33). The inner wall of the extended shell (3) is slidably connected to the side of the extended outer disk, and the outer surface of the extended shell (3) is fixedly connected to the middle of the inner wall of the dialysis box (1).
4. An auxiliary device for peritoneal dialysis in nephrology clinics according to claim 1, characterized in that: The filter cake tray (6) includes a guide rail (61). A sliding groove is evenly provided in the middle of the inner wall of the guide rail (61). A filter baffle (64) is evenly provided in the middle of the inner wall of the guide rail (61) through the sliding groove. Grooves (62) are evenly provided in the upper and lower sides of the middle of the inner wall of the guide rail (61) through the sliding groove. Through-holes (63) are symmetrically provided in the upper and lower sides of the inner wall of the filter cake tray (6). A central rod (7) is fixedly connected to the axis of the inner wall of the filter cake tray (6).
5. An auxiliary device for peritoneal dialysis in nephrology clinics according to claim 4, characterized in that: The central rod (7) includes an upper connecting rod (71), and a vertical rotating rod (72) is rotatably connected to the lower surface of the upper connecting rod (71) away from the central rod (7). A tension spring (73) is fixedly connected to the middle of the outer surface of the vertical rotating rod (72) near the central rod (7), and an arc-shaped thrust plate (74) is slidably connected to the bottom end of the vertical rotating rod (72).
6. An auxiliary device for peritoneal dialysis in nephrology clinics according to claim 5, characterized in that: The outer surface of the arc-shaped thrust plate (74) away from the center rod (7) is fixedly connected to the side of the filter baffle (64). Both sides of the filter baffle (64) are symmetrically provided with spring protrusions (65) through sliding arms. The end of the tension spring (73) away from the vertical rotating rod (72) is fixedly connected to the outer surface of the center rod (7).
7. An auxiliary device for peritoneal dialysis in nephrology clinics according to claim 1, characterized in that: The side-mounted pressurizing pump (5) includes a through shell (51). Rotary motors (52) are symmetrically arranged on the upper and lower sides of the outer surface of the through shell (51). A long rotating rod is fixedly connected to the top of the output shaft of the rotating motor (52), and rotating plates (53) are evenly arranged on the outer surface of the long rotating rod. Compression sleeves (54) are symmetrically arranged on the upper and lower sides of the inner wall of the through shell (51).
8. An auxiliary device for peritoneal dialysis in nephrology clinics according to claim 7, characterized in that: The number of rotating plates (53) is four. Side rods (55) are symmetrically arranged on the upper and lower sides of the outer surface of the rotating plates (53). The outer surface of the side rods (55) is slidably connected to the outer surface of the compression sleeve (54) away from the through shell (51). External fixing arms are symmetrically arranged on the outer surface of the rotating motor (52) housing.
9. An auxiliary device for peritoneal dialysis in nephrology clinics according to claim 8, characterized in that: The inner wall of the side-position pressurizing pump (5) has a through-hole (63) in the middle. Both sides of the through-hole shell (51) extend to the outside of the side-position pressurizing pump (5) through the through-hole (63), and the outer surface of the external fixed arm is fixedly connected to the inner wall of the side-position pressurizing pump (5).