Novel duplex double-bag system for peritoneal dialysis

Abstract

The utility model discloses a novel duplex double-bag system for peritoneal dialysis, and relates to the technical field of peritoneal dialysis. Comprising a dialysate bag, a medicine adding opening, an easily-folded valve rod, a liquid inlet pipe, a Y-shaped pipe, a liquid outlet pipe, a waste liquid bag, a pull ring cap, a Robert clamp, an automatic exhaust drip chamber, a flow regulator, a sample reserving and taking opening, a lower drainage pipe, a push-pull valve and a temperature measuring patch. According to the peritoneal dialysis system, on the basis of an existing peritoneal dialysis system, the automatic exhaust drip chamber and the flow regulator are sequentially and respectively arranged on the liquid inlet pipe and the liquid outlet pipe, so that the dialysate perfusion speed and the waste liquid drainage speed can be conveniently controlled. And a Robert clamp is additionally arranged above the drip chamber of the liquid outlet pipe, so that the waste liquid is prevented from flowing back. The dialysate bag and the waste liquid bag are additionally provided with containing scale marks, so that the use amount of dialysate and the drainage amount of waste liquid are convenient to control. And the disposable liquid crystal temperature measuring paste is additionally arranged on the dialysate bag, so that the temperature of the dialysate in use can be measured. The waste liquid bag is additionally provided with a specimen reserving opening, a lower drainage tube and a push-pull valve, so that waste liquid specimens can be reserved conveniently, and waste liquid can be discharged conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of peritoneal dialysis, in particular to a novel peritoneal dialysis double-bag system. Background Art

[0002] In renal failure, the kidneys significantly shrink and are unable to maintain basic functions. Clinically, the main manifestations are the retention of metabolic products, imbalances in water, electrolytes, acid, and base levels, and systemic involvement. Therefore, patients with renal failure require dialysis to remove accumulated metabolic products, toxic substances, and excess fluids, and to correct the imbalances in water, electrolytes, acid, and base levels.

[0003] In the field of kidney disease treatment, peritoneal dialysis is recognized by the medical community as an effective method for renal function replacement therapy in patients with uremia. Peritoneal dialysis utilizes the semipermeable nature of the peritoneum, acting as a natural blood filter. Peritoneal dialysis is repeated 4-5 times daily, with the peritoneal dialysis fluid continuously exchanged within the peritoneal cavity to remove accumulated metabolic products, toxic substances, and excess fluid from the patient's body, correcting imbalances in water, electrolytes, acid, and base balances. Patients undergoing home peritoneal dialysis, after receiving training from a peritoneal dialysis nurse specialist in a hospital, can perform peritoneal dialysis at home without the need for hospitalization. Therefore, home peritoneal dialysis is particularly suitable for my country's national conditions, effectively alleviating the shortage of hospitalized treatment resources and worthy of widespread promotion. Furthermore, patients undergoing home peritoneal dialysis enjoy a similar lifestyle to that of normal individuals, with relatively low treatment costs, significantly improving their quality of life.

[0004] Nowadays, the peritoneal dialysis double bag system is widely used in peritoneal dialysis technology. Figure 1As shown, the peritoneal dialysis systems currently used in domestic hospitals are all composed of: 1-dialysis fluid bag, 2-drug addition port, 3-easy-to-break valve stem, 4-liquid inlet tube, 5-Y-shaped tube, 6-pull ring cap, 7-liquid outlet tube, and 8-waste bag. When a patient uses the existing peritoneal dialysis double-bag system for peritoneal dialysis, first hang the peritoneal dialysis fluid bag (1), arrange the pipeline, lower the waste liquid bag (8), open the pull ring cap (6), connect the tube port of the Y-shaped tube (5) to the tube port of the peritoneal dialysis tube at the patient's end, release the peritoneal dialysis waste liquid in the patient's abdominal cavity, and then clamp the liquid outlet tube (7) with a blue medical catheter clamp. Break off the easy-to-break valve stem (3) on the inlet tube (4), open the blue medical catheter clamp on the outlet tube (7), exhaust the gas in the inlet tube (4), and then clamp the blue medical catheter clamp on the outlet tube (7), put the dialysate into the peritoneal cavity, and then clamp the inlet tube (4) with another blue medical catheter clamp, remove the dialysate bag (1), seal the tube, and finally remove the two blue medical catheter clamps on the peritoneal dialysis line to complete the peritoneal dialysis operation. The existing peritoneal dialysis double-bag system has the following shortcomings:

[0005] 1. In the existing peritoneal dialysis double-bag system, when a patient undergoes peritoneal dialysis, two blue medical catheters are used to clamp the inlet tube (1) and the outlet tube (7) respectively, which serve as switches for the peritoneal dialysis circuit to realize the on / off control of the dialysate infusion and waste liquid drainage. This operation is difficult to control the dialysate infusion speed and the waste liquid drainage speed. The speed is completely dependent on the operator's feeling and experience, and the control is not accurate.

[0006] 2. In the existing peritoneal dialysis double-bag system, when the patient's waste fluid drainage is not smooth or the dialysate infusion is not smooth, the operator cannot observe, discover and deal with the problem of poor discharge and poor infusion in time.

[0007] 3. Existing dual-bag peritoneal dialysis systems require patients to carry two blue medical catheter clips during each dialysis session. If patients forget to bring their blue medical catheter clips, their peritoneal dialysis treatment will be delayed. Furthermore, the medical catheter clips are easily lost and easily damaged after repeated use, increasing the patient's financial burden.

[0008] 4. Existing dual-bag peritoneal dialysis systems often use a constant-temperature incubator to warm the ambient dialysate to a temperature similar to human body temperature before removing it for use by the patient. However, due to the varying timing of dialysate placement in the incubator, the frequency and duration of door openings and closings, and the varying power-on and power-off times, operators rely solely on the touch of the fluid to determine its temperature. This makes it difficult for operators to accurately determine whether the dialysate is at the appropriate temperature for peritoneal dialysis treatment. Consequently, patients undergoing peritoneal dialysis are susceptible to increased discomfort due to the dialysate being too hot or too cold.

[0009] 5. The existing dual-bag peritoneal dialysis system has no volume scale lines on the dialysate bag and the waste fluid bag. When the patient undergoes peritoneal lavage, the operator cannot accurately determine the flushing volume of dialysate and the drainage volume of waste fluid in a timely manner. This can easily lead to insufficient drainage of waste fluid or excessive flushing volume of dialysate, causing abdominal pain, bloating and other discomforts to the patient.

[0010] 6. In the existing peritoneal dialysis double-bag system, when a nurse collects waste fluid samples, he or she can only use a disposable syringe to puncture the waste fluid bag (8) to collect the waste fluid sample. This operation is likely to cause the waste fluid sample to be contaminated, resulting in inaccurate test results of the waste fluid sample, and also increases the risk of needle stick injuries when the nurse collects the waste fluid sample.

[0011] 7. In the existing peritoneal dialysis double-bag system, when handling dialysis waste liquid, the operator generally uses scissors to cut the corners of the waste liquid bag (8) to create an opening for the waste liquid to be dumped. However, when cutting the waste liquid bag and dumping the waste liquid, the waste liquid is prone to splashing and polluting the surrounding environment. In addition, using scissors or other sharp tools to cut the waste liquid bag (8) is also prone to causing injuries to the operator.

[0012] 8. In the existing peritoneal dialysis double-bag system, when the patient's dialysis waste fluid is drained, dialysis waste fluid will remain in the outlet tube (7). When the patient moves or accidentally raises the waste fluid bag (8), the residual dialysis waste fluid in the outlet tube (7) can easily flow back into the abdominal cavity, causing peritonitis in the patient.

[0013] National utility model patent ZL201721591405 discloses an improved peritoneal dialysis fluid duplex system, characterized by: a drug dropper and a drug pulley switch are provided on the inlet pipe in the direction from the inlet pipe to the Y-shaped tube; a waste liquid dropper and a waste liquid pulley switch are provided on the outlet pipe in the direction from the Y-shaped tube to the outlet pipe; and a volume scale is provided on the peritoneal dialysis fluid bag. However, this utility model patent is also very cumbersome to use:

[0014] 1. The dropper attached to the liquid inlet tube in this utility model is a standard Murphy-style dropper, not an automatic venting Murphy-style dropper, and thus cannot automatically vent the liquid inlet tube. The operator must manually flip the dropper each time to vent the liquid, making the venting process more cumbersome and increasing the venting time of peritoneal dialysis.

[0015] 2. In this utility model, when the operator forgets to vent or does not perform the manual venting operation properly, the setting of the medicine dropper is more likely to cause bubbles or gas to appear in the liquid inlet tube, and the patient's dialysis safety cannot be guaranteed.

[0016] 3. Since there is no capacity scale line on the waste liquid bag, the operator cannot observe the drainage volume of the waste liquid in a timely and accurate manner, and thus cannot accurately control the infusion volume of the dialysate. It is more likely to cause the drainage volume of the waste liquid to be too small or the dialysate flushing volume to be too much, causing the patient to suffer from abdominal pain, abdominal distension and other discomforts.

[0017] 4. When the waste liquid drainage is completed, more dialysis waste liquid is more likely to remain because a waste liquid dropper is provided on the outlet tube. Therefore, the dialysis waste liquid remaining in the waste liquid dropper and the outlet tube is more likely to flow back into the abdominal cavity, increasing the patient's chance of abdominal infection.

[0018] 5. When handling dialysis waste fluid, operators also use scissors and other sharp instruments to cut open the peritoneal dialysis waste fluid bag and pour out the waste fluid. This can easily cause waste fluid to splash and contaminate the surrounding environment. In addition, using scissors and other sharp instruments to cut the waste fluid bag can easily cause injury to the operator.

[0019] 6. When nurses collect waste liquid samples, they also use disposable syringes to puncture the waste liquid bag to collect waste liquid samples; this operation can easily cause the waste liquid samples to be contaminated and increase the risk of needle stick injuries when nurses collect samples.

[0020] 7. The temperature control of peritoneal dialysis in this utility model also relies entirely on the operator's touch of the peritoneal dialysis fluid to sense the temperature of the dialysis fluid, which can easily cause the dialysis fluid temperature to be too high or too low, increasing the patient's discomfort during dialysis. Utility Model Content

[0021] To solve the above-mentioned technical problems, the present invention provides a novel peritoneal dialysis double-bag system that can control the degree, measure the temperature, observe the dosage, prevent the backflow of waste liquid, collect waste liquid samples, and dump waste liquid. The present invention provides the following technical solutions:

[0022] A novel dual-link, dual-bag peritoneal dialysis system includes: a dialysate bag, a dosing port, a breakaway valve stem, an inlet tube, a Y-shaped tube, an outlet tube, a waste bag, a pull-ring cap, a Robert clamp, an automatic venting drip chamber for dialysate, a dialysate flow regulator, an automatic venting drip chamber for waste fluid, a waste flow regulator, a specimen collection port, a lower drainage tube, a push-pull valve, scale lines, and a disposable LCD temperature measuring patch. Both the inlet and outlet tubes are connected to the Y-shaped tube. The pull-ring cap fits over the end of the Y-shaped tube.

[0023] Furthermore, in the direction from the inlet tube to the Y-tube, a dialysate automatic venting drip bucket and a dialysate flow regulator are installed. The dialysate automatic venting drip bucket is an automatic venting Murphy-style dropper. The dialysate flow regulator is the same type of flow regulator used in the infusion set.

[0024] Furthermore, in the direction from the Y-shaped tube to the liquid outlet pipe, there are an automatic exhaust drip bucket for waste liquid and a waste liquid flow regulator. The automatic exhaust drip bucket for waste liquid is an automatic exhaust Murphy-style dropper. The waste liquid flow regulator is the same flow regulator as the infusion set.

[0025] Furthermore, a disposable liquid crystal temperature measuring sticker is attached to the dialysis fluid bag. The attached disposable liquid crystal temperature measuring sticker must not obstruct the volume scale, relevant markings, and textual instructions of the dialysis fluid bag.

[0026] Furthermore, volume scale lines are added on the surface of the dialysate bag.

[0027] Furthermore, a capacity scale line is added on the surface of the waste liquid bag.

[0028] Furthermore, a specimen collection port is provided on the waste liquid bag, on the same side as the liquid outlet tube. With the side of the waste liquid bag with the volume scale markings as the front, the specimen collection port is located to the right of the liquid outlet tube. The distance from the specimen collection port to the liquid outlet tube is the same as the distance from the dosing port to the liquid inlet tube.

[0029] Furthermore, on the waste liquid bag, the design model, length, and material of the specimen collection port are consistent with the design model, length, and material of the drug addition port.

[0030] Furthermore, a lower drainage tube and a push-pull valve are additionally provided on the waste liquid bag at the middle position on the side opposite to the liquid outlet tube.

[0031] Furthermore, a Robert clamp is added above the waste liquid automatic exhaust drip bucket of the liquid outlet pipe; in the direction where the Y-shaped tube is connected to the liquid outlet pipe, the arrangement order of the Robert clamp, the waste liquid automatic exhaust drip bucket, and the waste liquid flow regulator is: Robert clamp, waste liquid automatic exhaust drip bucket, and waste liquid flow regulator.

[0032] In the above technical solution, the utility model provides a novel peritoneal dialysis double-bag system, which has the following beneficial effects:

[0033] 1. This utility model, based on the existing peritoneal dialysis double-bag system, adds a waste liquid automatic exhaust drip bucket and a waste liquid flow regulator in the direction from the Y-tube to the liquid outlet pipe. It has the following advantages:

[0034] 1) When performing peritoneal dialysis, the operator only needs to tidy up the pipeline, lower the waste liquid bag, open the Robert clamp and the waste liquid flow regulator to achieve automatic exhaust and waste liquid drainage, reducing the exhaust time and operation trouble of waste liquid drainage.

[0035] 2) When the patient's waste liquid drainage has problems with discharge, the waste liquid in the automatic exhaust drip bucket stops dripping. The operator can observe the situation in the automatic exhaust drip bucket to promptly discover and deal with the problem of poor discharge.

[0036] 3) The waste liquid flow regulator can not only replace the medical catheter clamp to control the switch of dialysis waste liquid drainage, but also adjust and control the speed of waste liquid drainage to avoid the waste liquid drainage speed being too fast and causing discomfort to the patient.

[0037] 4) The waste liquid flow regulator can not only avoid the problem of peritoneal dialysis treatment being delayed because the patient forgets to bring the blue medical catheter clamp; it can also avoid the problem of the blue medical catheter clamp being lost or damaged due to repeated use, which increases the financial burden on the patient.

[0038] 2. This utility model, based on the existing peritoneal dialysis double-bag system, is equipped with an automatic dialysis fluid exhaust drip chamber and a dialysis fluid flow regulator in sequence in the direction from the liquid inlet pipe to the Y-shaped pipe. It has the following advantages:

[0039] 1) During peritoneal dialysis, the operator no longer needs to manually flip the dialysate drip hopper to vent air. Simply hang the peritoneal dialysis solution, organize the peritoneal dialysis system tubing, lower the waste bag, and turn on all switches on the peritoneal dialysis system to automatically vent air. This reduces the time and hassle of venting during dialysate infusion. It also avoids the formation of bubbles or gas in the inlet tube due to the operator forgetting to vent or improper manual flipping and venting, thus better protecting the patient's dialysis safety.

[0040] 2) When the patient's dialysate infusion has problems with fluid inflow, the dialysate in the automatic exhaust drip bucket stops dripping. The operator can observe the situation in the waste liquid automatic exhaust drip bucket to promptly discover and deal with the problem of fluid inflow.

[0041] 3) The dialysate flow regulator can not only replace the blue medical catheter clamp to control the switch of dialysate perfusion, but also adjust and control the speed of dialysate perfusion to avoid the dialysate perfusion speed being too fast, causing abdominal pain, abdominal distension, abdominal impact and other discomforts to the patient.

[0042] 4) The dialysate flow regulator can prevent patients from delaying peritoneal dialysis treatment due to forgetting to bring the blue medical catheter clamp; it can also prevent the blue medical catheter clamp from being lost or damaged due to repeated use, which increases the financial burden on patients.

[0043] 3. The utility model adds a capacity scale line on the surface of the waste liquid bag to facilitate observation and control of the drainage volume of the waste liquid.

[0044] 4. This utility model adds capacity scale lines on the surface of the dialysate bag to facilitate observation and control of the dialysate infusion volume.

[0045] 5. This utility model adds a disposable LCD temperature measuring sticker to the surface of the dialysate bag to accurately display the dialysate temperature. This avoids the problem of improper dialysate temperature control caused by the operator relying solely on touch to feel the dialysate temperature, which can increase patient discomfort during dialysis.

[0046] 6. This utility model features a specimen collection port on the waste liquid bag, on the same side as the liquid outlet tube. This effectively improves the convenience for nurses in collecting waste liquid specimens, making the collection process safer and more hygienic. It also reduces the risk of waste liquid specimen contamination and increases the accuracy of waste liquid specimen test results.

[0047] 7. This utility model adds a lower drainage tube and a push-pull valve to the waste liquid bag on the side opposite the liquid outlet pipe. This allows the operator to conveniently empty the waste liquid by pushing the push-pull valve on the waste liquid bag. This ensures a uniform flow rate during waste liquid emptying, effectively reducing splashing and, consequently, environmental pollution. It also eliminates the risk of injury from using sharp tools such as scissors to cut the waste liquid bag.

[0048] 8. This utility model incorporates a Robert clamp above the automatic venting drip chamber of the liquid outlet tube. This prevents residual dialysis waste fluid in the liquid outlet tube and the automatic venting drip chamber from flowing back into the peritoneal cavity after drainage is complete, reducing the incidence of peritonitis and ensuring patient safety during dialysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a structural diagram of the existing peritoneal dialysis double-bag system.

[0050] Figure 2 It is a structural diagram of the present utility model.

[0051] Figure 3 This is a schematic structural diagram of the dialysate automatic exhaust dripping hopper and the waste liquid automatic exhaust dripping hopper of the present invention.

[0052] Figure 4 This is a structural diagram of the dialysate flow regulator and the waste liquid flow regulator of the utility model.

[0053] Figure 5 This is a schematic structural diagram of the waste liquid bag of the utility model.

[0054] Figure 6 This is a structural diagram of the utility model in use.

[0055] In the figure: including 1- peritoneal dialysis fluid bag, 2- dosing port, 3- easy-to-break valve stem, 4- inlet tube, 5- Y-type tube, 6- pull ring cap, 7- outlet tube, 8- waste fluid bag, 9- Robert clamp, 10- dialysate automatic exhaust drip bucket, 11- dialysate flow regulator, 12- waste liquid automatic exhaust drip bucket, 13- waste liquid flow regulator, 14- specimen collection port, 15- lower drainage tube, 16- push-pull valve, 17- scale line, 18- disposable LCD temperature measuring patch DETAILED DESCRIPTION

[0056] The present invention will be described in further detail below with reference to the accompanying drawings so that those skilled in the art can better understand the technical solutions of the present invention.

[0057] like Figure 2 and Figure 6 As shown, a novel peritoneal dialysis double-bag system includes 1-dialysis fluid bag, 2-drug addition port, 3-easy-to-break valve stem, 4-liquid inlet tube, 5-Y-type tube, 6-pull ring cap, 7-liquid outlet tube, 8-waste fluid bag, 9-Robert clamp, 10-dialysis fluid automatic exhaust drip bucket, 11-dialysis fluid flow regulator, 12-waste fluid automatic exhaust drip bucket, 13-waste fluid flow regulator, 14-specimen collection port, 15-lower drainage tube, 16-push-pull valve, 17-scale line, and 18-disposable liquid crystal temperature measuring patch.

[0058] like Figure 2 、 Figure 3 、 Figure 4 and Figure 6 As shown, the utility model is provided with an automatic exhaust drip bucket (12) and a waste liquid flow regulator (13) on the liquid outlet pipe (7) in sequence. When the patient releases the dialysis waste liquid in the peritoneal cavity, the operator only needs to open the Robert clamp (9) and the waste liquid flow regulator (13) on the liquid outlet pipe (7) to realize the automatic exhaust of the waste liquid and the drainage of the waste liquid. When the drainage of the waste liquid is completed, the operator only needs to clamp the Robert clamp (9) on the liquid outlet pipe and close the waste liquid flow regulator (13) to clamp the liquid outlet pipe without using a blue medical catheter clamp. When the patient's waste liquid drainage has a problem of poor drainage, the waste liquid in the automatic exhaust drip bucket (12) stops dripping, and the operator can observe the situation in the automatic exhaust drip bucket (12) to promptly discover and deal with the problem of poor drainage. The operator can also observe the flow rate of the waste liquid drainage in the waste liquid automatic exhaust drip bucket (12) to know the speed of the waste liquid drainage, and then adjust the waste liquid flow regulator (13) to achieve control of the waste liquid drainage speed. The waste liquid flow regulator (13) on the outlet pipe (7) not only replaces the blue medical catheter clamp to achieve control of the waste liquid drainage switch, but also regulates and controls the speed of the waste liquid drainage, avoids the waste liquid drainage speed being too fast, and reduces the discomfort of the patient during peritoneal dialysis.

[0059] like Figure 2 、 Figure 3 、 Figure 4 and Figure 6 As shown, the utility model sequentially adds a dialysate automatic exhaust drip bucket (10) and a dialysate flow regulator (11) to the liquid inlet pipe (4). When performing peritoneal dialysis, the patient does not need to manually flip the dialysate automatic exhaust drip bucket (10) to exhaust. The patient only needs to hang the peritoneal dialysis fluid, organize the pipes of the peritoneal dialysis system, lower the waste liquid bag, and turn on all switches on the dialysis system pipeline to achieve automatic exhaust, thereby reducing the patient's operational troubles. The dialysate automatic exhaust drip bucket (10) on the liquid inlet pipe (4) can also well avoid the problem of bubbles or gas appearing in the liquid inlet pipe (4) due to improper manual exhaust operation or forgetting to exhaust, thereby protecting the patient's dialysis safety. When peritoneal dialysis is completed, the operator only needs to close the dialysate flow regulator (11) on the liquid inlet pipe (4) to clamp the liquid inlet pipe without using a blue medical catheter clamp. When the patient's dialysate perfusion has a problem of poor liquid inflow, the dialysate in the dialysate automatic exhaust drip bucket (10) stops dripping, and the operator can observe the situation in the dialysate automatic exhaust drip bucket (10) to promptly discover and deal with the problem of poor liquid inflow. The operator can also observe the speed of dialysate perfusion in the dialysate automatic exhaust drip bucket (10) to know the speed of dialysate perfusion, and then adjust the dialysate flow regulator (11) to achieve control of the dialysate perfusion speed. The dialysate flow regulator (11) on the liquid inlet pipe (4) can not only replace the blue medical catheter clamp to achieve control of the switch for dialysate perfusion, but also regulate and control the speed of dialysate perfusion, avoiding the speed of dialysate perfusion being too fast, causing the patient to have abdominal distension, abdominal pain, abdominal impact and other discomfort problems.

[0060] like Figure 2 As shown, the utility model is based on the existing peritoneal dialysis double-bag system, and adds a waste liquid flow regulator (13) on the liquid outlet pipe (7) and a dialysate flow regulator (11) on the liquid inlet pipe (4). It can also avoid the problem of patients delaying peritoneal dialysis treatment due to forgetting to carry two blue medical catheter clamps; it can also avoid the problem of increased financial burden on patients due to loss or damage of the medical blue catheter clamps caused by repeated use.

[0061] like Figure 2 As shown, the present invention adds a disposable liquid crystal temperature measuring patch (18) to the surface of the dialysate (1) bag, which can accurately sense the temperature of the dialysate. This avoids the problem of improper dialysate temperature control during peritoneal dialysis, which increases the discomfort of the patient during the dialysis process, caused by the operator's feeling difference in the dialysate temperature by touch.

[0062] like Figure 1 、 Figure 2 and Figure 6 As shown, when the patient's waste liquid is drained, there is still waste liquid in the liquid outlet pipe (7) of the existing peritoneal dialysis double-bag system that has not been drained into the waste liquid bag (8). The remaining waste liquid is easy to flow back into the patient's abdominal cavity, causing infection in the patient. The utility model adds a Robert clamp (9) above the waste liquid automatic exhaust drip bucket (12) of the liquid outlet pipe (7). When the patient's waste liquid is drained, the Robert clamp (9) is clamped to avoid the problem of residual dialysis waste liquid in the liquid outlet pipe (7) and the waste liquid automatic exhaust drip bucket (12) flowing back into the abdominal cavity. Better protect the patient and reduce the probability of the patient developing peritonitis.

[0063] like Figure 2 and Figure 5 As shown, the utility model is provided with a sample collection port (14) on the side of the waste liquid bag (8) on the same side as the liquid outlet pipe (7). When a nurse collects a dialysis waste liquid sample, the nurse can directly use a syringe to extract the waste liquid sample through the sample collection port (14), which greatly facilitates the nurse to collect the waste liquid sample. The convenience of collecting the waste liquid sample is effectively improved, and the collection process is safe and hygienic, reducing the probability of the waste liquid sample being contaminated and increasing the accuracy of the waste liquid sample test results.

[0064] like Figure 2 and Figure 5 As shown, the utility model is provided with a lower drainage tube (15) and a push-pull valve (16) on the side of the waste liquid bag (8) opposite to the liquid outlet pipe (7). When peritoneal dialysis is completed and the dialysis waste liquid is processed, the operator does not need to use scissors or other sharp tools to cut or cut open the waste liquid bag (8) to dump the waste liquid. Instead, the operator only needs to push the push-pull valve (16) on the waste liquid bag (8) to dump the waste liquid. This can make the flow rate of the waste liquid dumping more uniform, effectively reduce the splashing of the waste liquid, and reduce the pollution of the waste liquid to the surrounding environment. At the same time, it also avoids the probability of the operator being injured by using scissors or other sharp tools, thereby protecting the operator's safety.

[0065] like Figure 2 and Figure 6As shown, the present invention adds capacity scale lines (17) on the surface of the dialysate bag (1) and the surface of the waste liquid bag (8). The existing peritoneal dialysis system dialysate bag (1) has no scale lines (17). When the patient undergoes peritoneal lavage, if the doctor's order requires a peritoneal lavage volume of 500 ml / time, that is, 1 / 4 of the normal peritoneal dialysis fluid is used for peritoneal lavage, then the operator can only rely entirely on experience to judge the amount of peritoneal dialysis fluid to be placed in the patient's peritoneal cavity, and cannot accurately grasp the lavage volume of the dialysate. Similarly, since the surface of the waste liquid bag (8) also has no scale lines (17), the operator cannot accurately know the drainage volume of the patient's peritoneal lavage and can only roughly estimate it. Such operation can easily cause the drainage volume of the waste liquid to be too small or the dialysate to be injected too much, causing abdominal pain, abdominal distension and other discomforts in the patient. The utility model provides a volume scale line (17) on the surface of the dialysate bag (1) and the surface of the waste liquid bag (8). When the patient undergoes peritoneal lavage, the operator can accurately grasp the lavage volume of the dialysate and the drainage volume of the waste liquid through the scale line (17), thereby preventing the problem of too little drainage volume of the waste liquid or too much lavage volume of the dialysate. This greatly facilitates the operation of peritoneal lavage and protects the patient's dialysis safety.

[0066] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A novel peritoneal dialysis double bag system, characterized in that: The invention comprises a dialysate bag (1), a drug addition port (2), an easily foldable valve stem (3), a liquid inlet tube (4), a Y-shaped tube (5), a pull ring cap (6), a liquid outlet tube (7), a waste liquid bag (8), a Robert clamp (9), a dialysate automatic exhaust drip bucket (10), a dialysate flow regulator (11), a waste liquid automatic exhaust drip bucket (12), a waste liquid flow regulator (13), a specimen collection port (14), a lower drainage tube (15), a push-pull valve (16), a capacity scale line (17), and a disposable liquid crystal temperature measuring patch (18); in the direction of the Y-shaped tube (5); the liquid inlet tube (4) and the liquid outlet tube (7) are connected to the Y-shaped tube (5); the pull ring cap (6) is sleeved on the end of the tube mouth of the Y-shaped tube (5); and in the direction of the Y-shaped tube (5); the liquid inlet tube (4) and the liquid outlet tube (7) are connected to the Y-shaped tube (5); the pull ring cap (6) is sleeved on the end of the tube mouth of the Y-shaped tube (5); and in the direction of the Y-shaped tube (5); the liquid inlet tube (4) and the liquid outlet tube (7) are connected to the Y-shaped tube (5); and the pull ring cap (6) is sleeved on the end of the tube mouth of the Y-shaped tube (5); and in the direction of the Y-shaped tube (5); the liquid inlet tube (4) and the liquid outlet tube (7) are connected to the Y-shaped tube (5). In the direction connected to the Y-shaped tube (5), a dialysate automatic exhaust drip bucket (10) and a dialysate flow regulator (11) are sequentially provided; in the direction from the Y-shaped tube (5) to the liquid outlet pipe (7), a waste liquid automatic exhaust drip bucket (12) and a waste liquid flow regulator (13) are sequentially provided; a Robert clamp (9) is additionally provided above the waste liquid automatic exhaust drip bucket (12) of the liquid outlet pipe (7); a volume scale line (17) is additionally provided on the surface of the dialysate bag (1); a volume scale line (17) is additionally provided on the surface of the waste liquid bag (8); a disposable liquid crystal temperature measuring patch (18) is additionally provided on the dialysate bag (1); and a specimen collection port (14), a lower drainage tube (15) and a push-pull valve (16) are additionally provided on the waste liquid bag (8).

2. A novel peritoneal dialysis double bag system according to claim 1, characterized in that: The dialysate automatic exhaust drip bucket (10) added in the direction from the liquid inlet pipe (4) to the Y-shaped pipe (5) is an automatic exhaust Murphy-type drip bucket; the waste liquid automatic exhaust drip bucket (12) added in the direction from the Y-shaped pipe (5) to the liquid outlet pipe (7) is an automatic exhaust Murphy-type drip bucket.

3. A novel peritoneal dialysis double bag system according to claim 1, characterized in that: The dialysate flow regulator (11) additionally provided in the direction from the liquid inlet pipe (4) to the Y-shaped pipe (5) is the same type of flow regulator as the infusion set; the waste liquid flow regulator (13) additionally provided in the direction from the Y-shaped pipe (5) to the liquid outlet pipe (7) is the same type of flow regulator as the infusion set.

4. A novel peritoneal dialysis double bag system according to claim 1, characterized in that: On the waste liquid bag (8), a specimen collection port (14) is additionally provided on the same side as the liquid outlet pipe (7); with the side of the waste liquid bag (8) with the capacity scale line (17) as the front, the specimen collection port (14) is located on the right side of the liquid outlet pipe (7), and the distance from the specimen collection port (14) to the liquid outlet pipe (7) is consistent with the distance from the dosing port (2) to the liquid inlet pipe (4).

5. A novel peritoneal dialysis double bag system according to claim 1, characterized in that: On the waste liquid bag (8), the design model, length, and material of the specimen collection port (14) are consistent with the design model, length, and material of the drug addition port (2).

6. A novel peritoneal dialysis double bag system according to claim 1, characterized in that: On the waste liquid bag (8), a lower drainage tube (15) and a push-pull valve (16) are both additionally arranged at the middle position on the side opposite to the liquid outlet tube (7).

7. A novel peritoneal dialysis double bag system according to claim 1, characterized in that: The disposable liquid crystal temperature measuring sticker (18) attached to the dialysate bag (1) must not block the capacity scale line (17), relevant markings and text descriptions of the dialysate bag (1).

8. A novel peritoneal dialysis double bag system according to claim 1, characterized in that: In the direction from the Y-shaped tube (5) to the liquid outlet pipe (7), the arrangement order of the Robert clamp (9), the waste liquid automatic exhaust drip bucket (12), and the waste liquid flow regulator (13) is: Robert clamp (9), the waste liquid automatic exhaust drip bucket (12), and the waste liquid flow regulator (13).

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