Method for manufacturing blood purification heating device

Abstract

The present application discloses a method for manufacturing a blood purification heating device, which includes: manufacturing a blood purification heating plate and obtaining the rated power of the blood purification heating plate; determining the loop length of the heating plate according to the rated power, and determining the preset radius of the heating plate according to the loop length; placing the pipeline on the coil fixture, starting the coil fixture, and winding the pipeline into a disc with a preset radius; applying adhesive on the surface of the pipeline, and squeezing the disc with the pressing plate on the coil fixture, and then drying it for a certain period of time; washing, drying, and disinfecting the dried disc. In this way, the production difficulty can be reduced, and the heating power of the blood purification heating plate can be kept consistent with the heating requirements of the heating disc.

Description

Technical Field

[0001] The present application relates to the technical field of blood purification, and in particular to a method for manufacturing a blood purification heating device. Background Art

[0002] During blood purification treatment, a blood purification heating device is used to heat the blood being purified to ensure that the blood returned to the body reaches a temperature that meets human safety requirements. The blood purification heating device includes a blood purification heating plate and a heating disk. The heating disk uses a threaded pipe structure. The blood to be heated is introduced into the pipe in the heating disk. The blood in the pipe is heated by the blood purification heating plate. The threaded heating disk increases the blood flow path in the heated area, improving the heating efficiency of the blood in the blood purification pipe.

[0003] A threaded pipe structure is used on the heating plate. If the heating plate is manufactured using the production process in traditional technology, the production of the heating plate will be very difficult. Moreover, the blood purification heating plate obtained using the assembly line production process in traditional technology has a uniform heating power, resulting in the heating power of the blood purification heating plate being inconsistent with the heating requirements of the heating plate, thereby reducing the practical value of the blood purification heating device. Summary of the Invention

[0004] Based on this, the present application provides a method for manufacturing a blood purification heating device, which can reduce the difficulty of production and ensure that the heating power of the blood purification heating plate is consistent with the heating requirements of the heating disk.

[0005] In a first aspect, the present application provides a method for manufacturing a blood purification heating device, wherein the blood purification heating device includes a blood purification heating plate and a heating disk, and the method includes:

[0006] Manufacturing a blood purification heating plate and obtaining a rated power of the blood purification heating plate;

[0007] determining a loop length of the heating plate according to the rated power, and determining a preset radius of the heating plate according to the loop length;

[0008] Placing the pipeline on a coiling tool, starting the coiling tool, and winding the pipeline into a disk having the preset radius;

[0009] Apply adhesive to the surface of the pipe, and squeeze the disc with a pressing plate on the coil fixture, and then let it dry for a certain period of time;

[0010] The dried discs are washed, dried and disinfected.

[0011] An embodiment of the present application provides a method for manufacturing a blood purification heating device, manufacturing a blood purification heating plate, and obtaining the rated power of the blood purification heating plate; determining the loop length of the heating plate according to the rated power, and determining the preset radius of the heating plate according to the loop length; placing the pipeline on a coil tooling, starting the coil tooling, and winding the pipeline into a disc with the preset radius; applying adhesive to the surface of the pipeline, and causing the pressure plate on the coil tooling to squeeze the disc, and then drying it for a certain period of time; washing, drying, and disinfecting the dried disc. Since the loop length of the heating disk is determined according to the rated power of the blood purification heating plate, and then the preset radius of the heating disk is determined, in this way, the heating power of the blood purification heating plate can be kept consistent with the heating demand of the heating disk, the heating demand of the blood in the heating disk is met, and the temperature of the heated blood can reach the safe temperature required for blood purification; compared with the traditional production process, since pipelines are used and the coil tooling is used to wind the pipeline into a disk with a preset radius, the pipeline is bonded with adhesive, squeezed to dry, washed, dried, and disinfected. Manufacturing the heating disk in this way can reduce the difficulty of production, and make the blood purification heating device have higher manufacturing flexibility and manufacturing efficiency, higher practical value, and wider application range.

[0012] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the planar structure of the blood purification heating device of the present application in which the heating disk is placed on the blood purification heating plate;

[0014] Figure 2 This is a schematic diagram of the spatial structure between the heating disk and the blood purification heating plate in the blood purification heating device of the present application;

[0015] Figure 3 This is a flow chart of an embodiment of a method for manufacturing a blood purification heating device of the present application;

[0016] Figure 4 This is a schematic diagram of the structure of the coil tooling in the manufacturing method of the blood purification heating device of the present application;

[0017] Figure 5 This is a schematic diagram of the coil tooling winding the pipeline in the manufacturing method of the blood purification heating device of the present application;

[0018] Figure 6 This is a schematic cross-sectional view of the pipeline when the pipeline is not deformed in the manufacturing method of the blood purification heating device of the present application;

[0019] Figure 7This is a schematic cross-sectional view of the pipeline when the pipeline is deformed in the manufacturing method of the blood purification heating device of the present application. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0021] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, combined, or partially merged, so the actual execution order may vary depending on the actual situation.

[0022] Before describing the embodiments of the present application in detail, the relevant technical contents are first introduced.

[0023] Blood purification is the process of removing the patient's blood from the body and passing it through a purification device to remove certain pathogenic substances in the blood in order to achieve the purpose of disease treatment. Among them, blood purification treatment modes include: hemodialysis, hemofiltration, hemoperfusion, plasma exchange, immunoadsorption and other blood purification treatment modes. Currently, blood purification treatment has been widely used in the treatment of various cardiovascular unstable, high catabolism or acute and chronic renal failure with cerebral edema, as well as multiple organ dysfunction syndrome, acute respiratory distress syndrome, crush syndrome, acute necrotizing pancreatitis, chronic heart failure, hepatic encephalopathy, drug and toxic poisoning, etc. After long-term clinical practice, it has been proved that blood purification treatment has achieved excellent clinical treatment results.

[0024] During the blood purification treatment, the temperature of the patient's blood will drop when it is outside the body. When the patient's blood temperature is lower than normal, if the low-temperature blood is directly returned to the human body, it will cause discomfort symptoms in the patient's body. Therefore, during the blood purification treatment, a blood purification heating device is used to heat the blood in the blood purification to ensure that the temperature of the blood returned to the human body can reach a temperature that meets the safety requirements of the human body. Taking into account the safety requirements during the blood purification process, when the blood is transmitted in the blood purification pipeline, in order to achieve the normal heating function of the blood in the blood purification pipeline, the blood purification heating device includes: a blood purification heating plate and a heating disk, wherein the heating disk usually needs to be in the form of a thread, such as Figure 1 and Figure 2 As shown, Figure 1 Shows a schematic diagram of the planar structure of the heating plate placed on the blood purification heating plate. Figure 2The diagram shows the spatial structure between the heating disk and the blood purification heating plate. In actual application, the pipeline on the heating disk is arranged in a threaded form. When the blood to be heated is introduced into the pipeline in the heating disk, the blood in the pipeline will be heated by the blood purification heating plate. The threaded form of the heating disk can increase the flow path of the blood in the heating area and improve the heating efficiency of the blood in the blood purification pipeline.

[0025] A threaded pipe structure is used on the heating plate. If the heating plate is manufactured using the production process in traditional technology, the production of the heating plate will be very difficult. Moreover, the blood purification heating plate obtained using the assembly line production process in traditional technology has a uniform heating power, which will result in the heating power of the blood purification heating plate and the heating demand of the heating plate being unable to keep consistent, thereby reducing the practical value of the heating device for blood purification.

[0026] In the embodiment of the present application, the loop length of the heating disk is determined according to the rated power of the blood purification heating plate, and the preset radius of the heating disk is determined. In this way, the heating power of the blood purification heating plate can be kept consistent with the heating demand of the heating disk, thereby meeting the heating demand of the blood in the heating disk, and the temperature of the heated blood can reach the safe temperature required for blood purification. Compared with the traditional production process, since a pipeline is adopted and the pipeline is wound into a circular disk with a preset radius using a coil tool, the pipeline is bonded with an adhesive, squeezed to dry, washed, dried, and disinfected. Manufacturing the heating disk in this way can reduce the production difficulty, and the blood purification heating device has higher manufacturing flexibility and manufacturing efficiency, higher practical value, and a wider range of applications.

[0027] It should be noted that the blood purification heating device in the embodiment of the present application is a device that has been used in the relevant technology, and the focus of the technical solution of the embodiment of the present application is on the manufacturing method; it should also be noted that in the process of manufacturing the blood purification heating device, the embodiment of the present application will involve some production equipment, such as coil tooling, etc. Production equipment similar to coil tooling are all existing production equipment in this field. Therefore, in the following, only structural schematics are shown for these production equipment, and the structural composition of these production equipment is not introduced in detail, because these production equipment already exist in traditional technologies and are currently widely used on the market.

[0028] In order to better illustrate the manufacturing method of the embodiment of the present application, the following will expand on the content of the invention to provide a detailed description of a specific embodiment. It should be noted that the following will only describe some key technical contents, and will not describe some repetitive contents above, nor will it describe some basic common sense in this field.

[0029] See also Figure 3 , Figure 3 It is a flow chart of an embodiment of a method for manufacturing a blood purification heating device of the present application, wherein the blood purification heating device comprises a blood purification heating plate and a heating disk.

[0030] The method includes: step S101, step S102, step S103, step S104 and step S105.

[0031] Step S101: manufacturing a blood purification heating plate and obtaining the rated power of the blood purification heating plate.

[0032] Specifically, a heating component is provided inside the blood purification heating plate, and heat can be generated by the heating component; Figure 2 As shown, Figure 2 The structure of the blood purification heating plate is shown. The heat emitted by the blood purification heating plate can heat the blood in the blood purification pipeline to achieve the heating function. The greater the rated power of the blood purification heating plate, the better the heating effect of the blood purification heating plate. For example, the rated power of the blood purification heating plate is: 100W.

[0033] Step S102: determining a loop length of the heating plate according to the rated power, and determining a preset radius of the heating plate according to the loop length.

[0034] Specifically, during the blood purification process, the blood in the blood purification circuit needs to be heated by the blood purification heating plate; for example, when the blood in the blood purification circuit needs to be heated, the higher the heating temperature, the shorter the heating time of the blood can be set; the lower the heating temperature, the longer the heating time of the blood can be set. There is a corresponding relationship between the rated power and the loop length of the heating plate. Generally, when the rated power of the blood purification heating plate is greater, the loop length of the heating plate will be shorter; for example, when the rated power of the blood purification heating plate is 100W-110W, the loop length of the heating plate needs to be 0.6m; when the rated power of the blood purification heating plate is 110W-120W, the loop length of the heating plate needs to be 0.5m; according to this predetermined corresponding relationship, when the rated power is obtained, the loop length of the heating plate can be obtained.

[0035] Once the loop length of the heating plate is obtained, the preset radius of the heating plate can be determined. The preset radius can refer to the maximum radius of the circle formed by the pipes in the heating plate. This setting is equivalent to setting the performance parameters of the heating plate. In one embodiment, the preset number of turns of the heating plate can also be determined based on the loop length of the heating plate. The preset number of turns can refer to the number of turns formed by the pipes in the heating plate, and is also a performance parameter of the heating plate.

[0036] Step S103: placing the pipeline on the coil tooling, starting the coil tooling, and winding the pipeline into a disc having the preset radius.

[0037] Specifically, the pipeline can be a hollow plastic hose, such as a polyvinylchloride (PVC) pipeline. Figure 4 As shown, Figure 4 The schematic diagram of the coil fixture is shown; the pipeline is placed on the processing disk of the coil fixture and fixed on the processing disk of the coil fixture; the coil fixture is started by the control device, the processing disk rotates, and the pipeline is wound along the pressure rod on the processing disk to form a disk with a preset radius, such as Figure 4 and Figure 5 As shown, when the processing disk rotates, the pipe will be wound to form a disc, and then the two ends of the pipe will be cut to obtain a disc with a preset radius.

[0038] Step S104: applying adhesive to the surface of the pipeline, and making the pressing plate on the coil tooling squeeze the disc, and then drying it for a certain period of time.

[0039] Specifically, in order to bond the pipes together, an adhesive (e.g., cyclohexanone) is applied to the surface of the disc obtained in S103. The adhesive penetrates the gaps between the pipes, thereby bonding adjacent, different pipes together. A pressing plate on the coil tooling is used to press the disc. Specifically, the pressing plate can be placed on a processing plate and gently pressed against the disc to initially form the pipes into a single disc. After drying for a period of time (e.g., one hour), the pipes are securely connected.

[0040] Step S105: washing, drying and disinfecting the dried disc.

[0041] Specifically, by washing the disc with water, impurities inside and outside the pipeline can be removed; by drying, water droplets remaining in the washing process can be removed, for example, by placing the disc in a drying room to achieve a drying effect; by disinfection, some bacterial substances on the pipeline in the disc can be removed, for example, by placing the disc in a disinfection room to achieve a disinfection effect; after S105, the required heating disc can be obtained, where the heating disc has a preset radius.

[0042] In an embodiment of the present application, the blood purification heating device includes: a blood purification heating plate and a heating disk. The rated power of the blood purification heating plate is fully matched with the radius of the heating disk. When the blood passes through the pipeline in the heating disk, the blood in the blood purification pipeline is adaptively heated by the blood purification heating plate, thereby meeting various heating requirements of the blood purification pipeline in clinical applications.

[0043] In one embodiment, step S103, placing the pipeline on the coil tooling, starting the coil tooling, and winding the pipeline into a disk with the preset radius, may include: sub-step S1031 and sub-step S1032.

[0044] Sub-step S1031: placing the pipeline on the coil fixture, and testing the Shore hardness and temperature of the pipeline.

[0045] Sub-step S1032: When it is determined that the pipeline meets the preset cutting conditions based on the Shore hardness and temperature of the pipeline, the coil tooling is controlled to rotate, the pipeline is wound into a disc with a preset radius, and the cutting die blade on the coil tooling is used to cut the pipeline.

[0046] Specifically, Shore hardness refers to: the value measured by a Shore hardness tester. The hardness value of the pipeline can be quantitatively evaluated based on the Shore hardness; for example, when the Shore hardness of the pipeline is greater, the deformation capacity of the pipeline material is lower and the hardness is higher; the embodiment of the present application determines whether the pipeline meets the preset cutting conditions based on the Shore hardness and temperature of the pipeline to prevent damage to the pipeline when cutting the pipeline.

[0047] For example, after the pipeline is wound along the pressure rod on the processing disk, the pipeline has formed a disk of a preset radius, then the cutting die blade on the coil tooling is needed to cut the pipeline to seal the pipeline; the Shore hardness and the temperature are used to judge whether the pipeline meets the preset cutting conditions, specifically including: when the pipeline is judged to have a certain deformation ability according to the Shore hardness, and the pipeline is judged to be in a normal temperature range according to the temperature, it is determined that the pipeline meets the preset cutting conditions; on the contrary, when the pipeline is judged to have no deformation ability according to the Shore hardness, forced cutting of the pipeline in this case may easily lead to defects in the pipeline sealing; or when the pipeline is judged to be in an overheated state according to the temperature, forced cutting of the pipeline in this case may easily lead to incision deformation of the pipeline after cooling, so when the pipeline is judged not to meet the preset cutting conditions according to the Shore hardness and temperature, the pipeline will not be cut.

[0048] In one embodiment, sub-step S1032, after the cutting die blade on the coil tooling cuts the pipeline, may further include: step S106 and step S107.

[0049] Step S106: Check whether the incision of the pipeline is complete.

[0050] Step S107: If the incision of the pipeline is complete, the incision of the pipeline is sealed with a cap.

[0051] After cutting the pipe using the die-cutting blade on the coil tooling, in actual use, the pipe cut is prone to damage and uneven surface. If the pipe cut is detected to be incomplete, it means that the cutting process has resulted in defective products. If the pipe cut is detected to be complete, it means that the pipe cutting process is in a normal state, and the pipe cut is sealed with a cap before the next manufacturing step is carried out. Therefore, the embodiment of the present application detects whether the pipe cut is complete, thereby promptly detecting the defective pipe problem caused by the pipe cutting process.

[0052] It should be noted that in S106 , the detection method for whether the pipeline incision is complete may be: taking a photo of the pipeline incision, and then using some intelligent algorithms in traditional technologies to identify the pipeline incision image, and then determine whether the incision is complete.

[0053] In one embodiment, in step S104 , before applying adhesive to the surface of the pipeline, the method may further include: step S108 .

[0054] Step S108: Detecting the temperature of the surface of the pipeline.

[0055] At this time, in step S104, applying adhesive to the surface of the pipeline may include: applying adhesive to the surface of the pipeline when the temperature of the surface of the pipeline is lower than a first preset temperature.

[0056] Specifically, since the adhesive is a fusible adhesive, it must be within a certain temperature range to achieve the bonding effect between the pipes. When the external environment temperature of the adhesive is too high, the adhesive will not be able to achieve the bonding effect due to the high temperature. In the embodiment of the present application, the first preset temperature represents the maximum limit temperature for the adhesive to bond the pipes, wherein the first preset temperature is determined by the chemical composition and manufacturing process of the adhesive. For example, the first preset temperature is 50°C. Only when the surface temperature of the pipe is less than 50°C, the surface of the thread meets the material application conditions, and the adhesive is applied between the surfaces of the pipes to achieve the bonding effect, thereby ensuring the bonding stability between the pipes in the disc. Therefore, by detecting the surface temperature of the pipe, the embodiment of the present application can eliminate the influence of temperature on the bonding performance of the adhesive, thereby improving the manufacturing safety of the pipes in the disc.

[0057] In one embodiment, in step S103, starting the coil tool to wind the pipeline into a disk with the preset radius may include: sub-step S1031 and sub-step S1032.

[0058] Sub-step S1031: Determine the rotation rate of the coil fixture according to the loop length.

[0059] Sub-step S1032: controlling the coil tooling to rotate at the rotation rate to wind the pipeline into a disc with the preset radius.

[0060] Please combine Figure 5 , Figure 5 The figure shows a schematic diagram of pipeline winding. When the pipeline is fixed on the coil tooling, the coil tooling is started, and the processing disk automatically rotates at a certain rotation rate, and the pipeline is wound into a disc. Generally, the rotation rate of the coil tooling cannot be set too fast or too slow. If the rotation rate of the coil tooling is set too fast, the pipeline will easily break, get stuck, and other faults during winding. If the rotation rate of the coil tooling is set too slow, the pipeline winding time will be too long, reducing the pipeline winding efficiency.

[0061] Specifically, the embodiment of the present application determines the rotation rate of the coil fixture based on the loop length, wherein there is a corresponding relationship between the loop length of the heating disk and the rotation rate of the coil fixture. When the loop length of the heating disk is larger, the rotation rate of the coil fixture is also larger; illustratively, Table 1 shows the corresponding relationship between the loop length of the heating disk and the rotation rate of the coil fixture.

[0062] Table 1 Correspondence between the loop length of the heating plate and the rotation speed of the coil fixture

[0063]

[0064]

[0065] It should be noted that the data correspondence in Table 1 is obtained based on experience, and the source of the data is not described in detail here; after the loop length of the heating disk is obtained, the rotation rate of the coil fixture can be found according to the correspondence in Table 1. The rotation rate of the coil fixture obtained in this way is exactly the optimal winding rate, which is neither too fast nor too slow, taking into account the winding safety and winding efficiency of the pipeline, and reducing the failure rate during pipeline winding during the manufacturing process of the blood purification heating device.

[0066] In one embodiment, step S104, applying adhesive on the surface of the pipeline, squeezing the disc with a pressing plate on the coil tooling, and then drying for a certain period of time, may include: sub-step S1041, sub-step S1042, and sub-step S1043.

[0067] Sub-step S1041: detecting a first diameter of the pipeline, and determining a drying time of the disk according to the first diameter.

[0068] Sub-step S1042: applying adhesive to the surface of the pipeline, and pressing the pressing plate on the coil fixture to press the disc.

[0069] Sub-step S1043: drying the squeezed disc within the drying time.

[0070] Specifically, the diameter of the pipeline refers to: the inner diameter of the pipeline, the first diameter of the pipeline refers to the inner diameter of the pipeline before the adhesive is applied, and the drying time of the disc can be scientifically set according to the first diameter. Generally, when the first diameter of the pipeline is larger, more adhesive needs to be applied to the surface of the pipeline, so a longer drying time is required to bond and fix the pipelines with the adhesive; when the diameter of the pipeline is smaller, less adhesive needs to be applied to the surface of the pipeline, so a shorter drying time is required to bond and fix the pipelines with the adhesive. Therefore, the embodiment of the present application scientifically and reasonably sets the drying time according to the first diameter of the pipeline, ensuring that the dried disc has higher stability and safety, and improving the drying efficiency of the disc.

[0071] It should be noted that in S1041, a corresponding relationship between the first tube diameter and the drying time can be obtained based on empirical values, and then a numerical corresponding relationship between the first tube diameter and the drying time can be obtained according to this corresponding relationship.

[0072] In one embodiment, sub-step S1043, after drying the squeezed disc within the drying time, may further include: step S109 and step S110.

[0073] Step S109: Detecting the second diameter of the pipeline.

[0074] Step S110: determining whether a diameter fault occurs in the pipeline according to the difference between the first pipe diameter and the second pipe diameter.

[0075] Specifically, since in S1042, the pressure plate needs to be squeezed against the disc, this squeezing method can easily cause the diameter of the pipeline to be deformed. Therefore, in S109 and S110, the second diameter of the pipeline is detected again, and the difference between the first diameter and the second diameter is compared to determine whether the pipeline has a diameter fault. For example, when the difference between the first diameter and the second diameter is greater than the preset safety amplitude, it means that the squeezing method has caused the diameter of the pipeline to be significantly deformed, and the pipeline has a diameter fault. At this time, an audible and visual alarm signal is issued to remind the user that the diameter of the pipeline has been significantly deformed. For another example, when the difference between the first diameter and the second diameter is less than or equal to the preset safety amplitude, it means that the pipeline has not had a diameter fault. Therefore, the embodiment of the present application can identify whether the pipeline has a diameter fault during the manufacturing process of the blood purification heating device based on the diameter difference of the pipeline, thereby ensuring the manufacturing safety of the blood purification heating device.

[0076] For example, the first tube diameter is 10 cm, the second tube diameter is 8 cm, and the preset safety margin is set in advance to 1 cm. Therefore, the difference between the first tube diameter and the second tube diameter is 10 cm - 8 cm = 2 cm > 1 cm, which means that the extrusion method causes the diameter of the pipeline to shrink and deform, and the pipeline has a diameter failure; on the contrary, if the first tube diameter is 10 cm and the second tube diameter is 9.5 cm, the difference between the first tube diameter and the second tube diameter is 10 cm - 9.5 cm = 0.5 cm < 1 cm, which means that the extrusion method does not cause a diameter failure in the pipeline.

[0077] It should be noted that in S109, the second diameter of the pipeline is detected. The second diameter detected here is the minimum diameter of the pipeline. As mentioned above, the pipeline is a hollow hose. When the hollow hose is squeezed, the pipeline will be deformed, such as flattening the pipeline. In S109, the second diameter refers to the minimum diameter measured by the pipeline; because when the pipeline is not deformed, the cross-section of the through hole in the pipeline is circular, and the diameters measured by the pipeline are all the same, such as Figure 6 As shown, Figure 6 FIG1 shows a schematic diagram of the cross section of the pipeline before deformation occurs; however, after extrusion deformation, the cross section of the through hole in the pipeline is no longer circular, as shown in FIG1 . Figure 7 As shown, Figure 7 The cross-sectional view of the pipeline when deformation occurs is shown; the second pipe diameter in S109 refers to the minimum pipe diameter of the pipeline.

[0078] In one embodiment, step S105, before washing, drying and sterilizing the dried disc, may further include: step S111.

[0079] Step S111: outputting the test liquid to the pipeline to perform a leakage test on the pipeline.

[0080] Specifically, since the disc needs to be squeezed in S104, this squeezing may cause a risk of cracks in the pipe wall. Therefore, after S104, a leakage test is performed on the pipe. The specific method is: outputting a test liquid to the pipe, and retaining the test liquid in the pipe for a period of time. Preferably, the test liquid is a red liquid or a black liquid; by detecting whether there is leakage of the test liquid in the pipe, it is determined whether there is crack in the pipe wall; for example, when the test liquid in the pipe leaks, it indicates that there is a crack in the pipe wall, and a fault alarm signal is issued to prompt the user: there is a leakage fault in the pipe.

[0081] Therefore, the embodiment of the present application effectively avoids leakage defects in the manufactured pipeline by performing a leakage test on the pipeline, and more comprehensively ensures the manufacturing safety of the blood purification heating device.

[0082] In one embodiment, in step S103 , before placing the pipeline on the coil fixture, the process may further include: step S112 , step S113 , step S114 , and step S115 .

[0083] Step S112: Calculating the area of ​​the heating plate according to the preset radius.

[0084] Specifically, since the cross section of the heating plate is circular, after the preset radius of the heating plate is determined according to the loop length, the area of ​​the heating plate can be calculated according to the traditional formula for calculating the area of ​​a circle. For example, if the preset radius is 20 cm, the area of ​​the heating plate is (π*20*20) cm. 2 ≈1256cm 2 , where the area of ​​the heating plate can represent: the area of ​​the pipeline that needs to be heated during the blood purification process.

[0085] Step S113: obtaining the heating area of ​​the blood purification heating plate.

[0086] Specifically, such as Figure 1 As shown, the cross section of the blood purification heating plate is usually rectangular, in which the entire area of ​​the blood purification heating plate can realize the heating function; for example, when the length and width of the cross section of the blood purification heating plate are obtained, the area calculation formula of the rectangle in the traditional technology can be used to calculate the heating area. For example, if the length of the cross section of the blood purification heating plate is 30cm and the width of the cross section of the blood purification heating plate is 20cm, the heating area of ​​the blood purification heating plate is 20cm*30cm=600cm 2 .

[0087] Step S114: Determine whether the area of ​​the heating disk and the heating area of ​​the blood purification heating plate meet a first condition, wherein the first condition is that the difference between the heating area of ​​the blood purification heating plate and the area of ​​the heating disk is greater than a first preset value.

[0088] Step S115: If the first condition is not met, a fault prompt signal is issued.

[0089] The first preset value is a pre-set value.

[0090] During clinical application, when a blood purification heating plate is used to heat the blood in the heating disk, the heating disk needs to be placed in the blood purification heating plate. In order to achieve a better heating effect, the heating area of ​​the blood purification heating plate usually needs to be slightly larger than the area of ​​the heating plate, so that: the heat emitted by the blood purification heating plate can evenly cover every area of ​​the heating disk; therefore, in S114, the first preset value is a value greater than 0. Only when the area of ​​the heating disk and the heating area of ​​the blood purification heating plate meet the first condition, the preset radius of the heating disk is a reasonable value, and then step S103 can be executed to wind the disk according to the preset radius; on the contrary, if the area of ​​the heating disk and the heating area of ​​the blood purification heating plate do not meet the first condition, the preset radius of the heating disk is not a reasonable value, the heating area of ​​the blood purification heating plate cannot cover the area of ​​the heating disk, and the heating effect of the blood purification heating device is reduced. At this time, a fault prompt signal is issued to prompt the user: the preset radius of the heating disk needs to be adjusted.

[0091] For example, the first preset value is set in advance to: 10cm 2 For example, the heating area of ​​the blood purification heating plate is 1000cm 2 , the area of ​​the heating plate is 600cm 2 , then 1000cm 2 -600cm 2 =400cm 2 >10cm 2 , if the first condition is met, the preset radius of the heating plate set in S102 is a reasonable value; for example, the heating area of ​​the blood purification heating plate is 600cm 2 , the area of ​​the heating plate is 1000cm 2 , then 600cm 2 -1000cm 2 =-400cm 2 <10cm 2 If the first condition is not met, the preset radius of the heating plate formulated in S102 is an unreasonable value, and a fault prompt signal is issued.

[0092] Therefore, the embodiment of the present application can verify whether the preset radius of the heating disk in S102 is a reasonable value based on the area of ​​the heating disk and the heating area of ​​the blood purification heating plate, thereby avoiding the situation where the areas of the manufactured heating disk and the blood purification heating plate do not match.

[0093] In one embodiment, in step S102 , determining the preset radius of the heating plate according to the loop length may include: sub-step S1021 and sub-step S1022 .

[0094] Sub-step S1021: Obtain the corresponding relationship between the pipeline length, the heating plate radius, and the number of heating plate turns.

[0095] Sub-step S1022: Determine a preset radius and a preset number of turns of the heating plate according to the loop length and the corresponding relationship.

[0096] Specifically, the corresponding relationship between the pipeline length, the heating plate radius, and the number of heating plate turns can be obtained based on experience or after multiple experiments, for example, as shown in Table 2.

[0097] Table 2 Correspondence between pipeline length, heating plate radius and heating plate number of circles

[0098] Pipeline length (unit: m) Heating plate radius (unit: cm) Heating plate turns 0.5 10 5 0.6 15 6 0.7 20 7 0.8 25 8 0.9 30 9

[0099] When the loop length is obtained, the preset radius and number of turns of the heating plate can be derived according to Table 2. For example, if the loop length is 0.6 m, Table 2 shows that the heating plate radius is 15 cm and the number of turns of the heating plate is 6. Therefore, the preset radius of the heating plate is 15 cm, and the preset number of turns of the heating plate is 6. Therefore, the embodiment of the present application can quickly and conveniently determine the preset radius and number of turns of the heating plate.

[0100] In one embodiment, the method further includes: step S116, step S117, and step S118.

[0101] Step S116: Before applying adhesive to the surface of the pipeline, detecting a first weight of the disc.

[0102] Step S117: After applying adhesive to the surface of the pipeline, detecting a second weight of the disc.

[0103] Step S118: determining the application capacity of the adhesive according to the difference between the first weight and the second weight.

[0104] Specifically, when applying adhesive to the surface of a pipeline, it is necessary to know the total amount of adhesive applied to the disc, where this total amount cannot be too high or too low. The embodiment of this application uses a weight detection method to calculate the adhesive application capacity. For example, if the first weight is 1 kg and the second weight is 1.2 kg, the calculated adhesive application capacity is: 1.2 kg - 1 kg = 0.2 kg. This weight detection method can accurately determine the total amount of adhesive applied to the disc, facilitating comprehensive monitoring of the manufacturing process of the blood purification heating device.

[0105] It should be noted that, in S118, the application capacity of the adhesive may refer to: the application weight of the adhesive or the application volume of the adhesive, wherein the application weight of the adhesive is the difference between the first weight and the second weight; the application volume of the adhesive can be directly calculated based on the conversion formula of weight-density-volume.

[0106] In one embodiment, in step S103 , winding the pipeline into a disk with a preset radius may include: winding the pipeline into a disk with a preset radius, and spraying water with a temperature lower than a second preset temperature on the pipeline.

[0107] Specifically, when winding the pipeline, the pipeline needs to be bent multiple times. In order to reduce the probability of physical damage to the pipeline wall during the bending process, the embodiment of the present application uses water below the second preset temperature (for example, the second preset temperature is 20°C) to spray on the pipeline. On the one hand, it keeps the surface of the pipeline moist, and on the other hand, it cools the pipeline. In this way, the physical safety of the pipeline during the winding process can be maintained, and the probability of failure of the blood purification heating device during the manufacturing process can be reduced.

[0108] It should be noted that some of the data listed in the above embodiments are only used to illustrate the technical means of this solution, and do not mean that this application will be implemented according to the data in the above embodiments during the specific implementation process.

[0109] It should be understood that the terms used in the specification of the present application are only used to describe specific embodiments and are not intended to limit the present application.

[0110] It will also be understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0111] The above descriptions are merely specific embodiments of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present application, and such modifications or substitutions should be included within the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A method for manufacturing a blood purification heating device, wherein the blood purification heating device comprises a blood purification heating plate and a heating disk, characterized in that: The method comprises: Manufacturing a blood purification heating plate and obtaining a rated power of the blood purification heating plate; Determine the loop length of the heating plate according to the rated power, and determine the preset radius of the heating plate according to the loop length; wherein, the greater the rated power, the shorter the loop length; Placing the pipeline on a coiling tool, starting the coiling tool, and winding the pipeline into a disk having the preset radius; Apply adhesive to the surface of the pipe, and squeeze the disc with a pressing plate on the coil fixture, and then let it dry for a certain period of time; The dried discs are washed, dried and disinfected.

2. The method according to claim 1, characterized in that Placing the pipeline on the coil tool, starting the coil tool, and winding the pipeline into a disc having the preset radius includes: Placing the pipeline on the coil fixture and testing the Shore hardness and temperature of the pipeline; When it is determined that the pipeline meets the preset cutting conditions based on the Shore hardness and temperature of the pipeline, the coil tooling is controlled to rotate, the pipeline is wound into a disc with a preset radius, and the cutting die blade on the coil tooling is used to cut the pipeline.

3. The method according to claim 2, characterized in that After the cutting die blade on the coil tooling is used to cut the pipeline, the method further comprises: Checking whether the incision of the pipeline is complete; If the incision of the pipeline is complete, the incision of the pipeline is sealed with a cap.

4. The method according to claim 1, wherein Before applying the adhesive on the surface of the pipeline, the method further comprises: detecting the temperature of the surface of the pipeline; The step of applying adhesive to the surface of the pipeline includes: When the temperature of the surface of the pipeline is lower than a first preset temperature, adhesive is applied to the surface of the pipeline.

5. The method according to claim 1, wherein The step of starting the coil tool to wind the pipe into a disc having the preset radius includes: determining a rotation rate of the coil fixture based on the loop length; The coil tool is controlled to rotate at the rotation rate to wind the pipeline into a disk with the preset radius.

6. The method according to claim 1, wherein The adhesive is applied to the surface of the pipeline, and the pressing plate on the coil tool is pressed against the disc, and then dried for a certain period of time, including: detecting a first diameter of the pipeline, and determining a drying time of the disk according to the first diameter; Apply adhesive to the surface of the pipeline, and squeeze the disc with a pressing plate on the coil fixture; The extruded discs are dried within the drying time.

7. The method according to claim 6, characterized in that After drying the extruded disc within the drying time, the method further comprises: detecting a second diameter of the pipeline; Whether a pipe diameter fault occurs in the pipeline is determined according to a difference between the first pipe diameter and the second pipe diameter.

8. The method according to claim 1, characterized in that Before washing, drying and disinfecting the dried disc, the method further comprises: A test liquid is outputted to the pipeline to perform a leak test on the pipeline.

9. The method according to claim 1, characterized in that Before placing the pipeline on the coil tooling, the following steps are also included: Calculating the area of ​​the heating plate according to the preset radius; Obtaining the heating area of ​​the blood purification heating plate; determining whether the area of ​​the heating disk and the heating area of ​​the blood purification heating plate meet a first condition, wherein the first condition is that a difference between the heating area of ​​the blood purification heating plate and the area of ​​the heating disk is greater than a first preset value; If the first condition is not met, a fault prompt signal is issued.

10. The method according to claim 1, characterized in that The method further comprises: Before applying adhesive to the surface of the pipeline, detecting a first weight of the disc; After applying adhesive to the surface of the pipeline, detecting a second weight of the disc; The application capacity of the adhesive is determined based on the difference between the first weight and the second weight.

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