Heating module and blood purification apparatus

Abstract

The utility model provides a kind of heating module and blood purification equipment, heating module includes fixed seat, heating plate and cover plate, fixed seat is equipped with accommodating cavity, opening and first accommodating recess, opening is through the first side wall of fixed seat and is communicated with accommodating cavity, first accommodating recess is located at opening, first accommodating recess is equipped with first locking cooperation piece, the bottom of accommodating cavity is equipped with second accommodating recess, heating plate is installed in second accommodating recess, the first side of cover plate is equipped with second locking cooperation piece and at least two avoidance notches, second locking cooperation piece is located between two avoidance notches, the second side of cover plate is rotatably connected with the second side of fixed seat, cover plate can be rotated to accommodating cavity, so that first locking cooperation piece and second locking cooperation piece locking cooperation, avoidance notch and accommodating cavity are communicated.Blood purification equipment includes the above-mentioned heating module, the heating module is convenient for cleaning, liquid bag is taken and placed, and can be embedded in the body of blood purification equipment.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically to a heating module and a blood purification device equipped with the heating module. Background Technology

[0002] Blood purification equipment removes harmful substances from the blood and maintains a stable internal environment. It requires a blood purification pipeline to complete the blood purification process. Specifically, under the pumping power of the blood purification equipment, blood is drawn out of the body through the blood purification pipeline, then purified through modules such as plasma adsorption columns and perfusion devices. Finally, the purified blood is returned to the body through the same pipeline, achieving the goal of blood purification. Because the blood temperature during extracorporeal circulation is low, directly returning it to the body could cause discomfort. Therefore, the blood is heated before being returned to the body.

[0003] like Figure 1 As shown, a heating module 9 is provided, comprising a fixed base 91, a heating plate 92, a heat-conducting plate 93, a guide post 94, a cover 95, a spring plunger 96, and a locking assembly 97. The fixed base 91 has a receiving cavity, the heat-conducting plate 93 is installed in the receiving cavity, and the heating plate 92 is disposed between the fixed base 91 and the heat-conducting plate 93. The heat-conducting plate 93 has a placement position for placing a liquid bag to be heated. The guide post 94 is slidably connected to the fixed base 91 and fixedly connected to the cover 95, so that the cover 95 can close the receiving position through the guide post 94 to prevent the liquid bag from falling out of the receiving position, or to separate the cover 95 from the fixed base 91 so that the liquid bag can be removed from the receiving position. The spring plunger 96 is installed on the fixed base 91, and the ball head of the spring plunger 96 contacts the cover plate. The spring plunger 96 is used to push the cover 95 away from the fixed base 91, so that the cover 95 is separated from the fixed base 91. The locking assembly 97 is used for... The cover 95 is locked and fixed on the fixing seat 91 so that the cover 95 covers the receiving position. The cover 95 is provided with a tongue 951. The locking assembly 97 includes a push rod 971, a locking tongue 972 and an elastic member 973. The push rod 971 is slidably connected to the fixing seat 91. The locking tongue 972 is fixed on the push rod 971. The fixing seat 91 is provided with a relief groove to accommodate the locking tongue 972 and the tongue 951. The elastic member 973 is provided between the fixing seat 91 and the locking tongue 972. The elastic member 973 is used to push the locking tongue 972 to fasten it tightly to the tongue 951 so as to lock and fix the top cover. By pushing the push rod 971 to compress the elastic member 973, the locking tongue 972 can be separated from the tongue 951, thereby releasing the lock on the cover 95.

[0004] Combination Figure 2 The heating module 9 mentioned above has the following shortcomings: First, the cover 95 is slidably connected to the fixed seat 91 via the guide post 94. The connection method of the cover 95 covering the receiving position or separating it from the fixed seat 91 will result in a small operating space for taking out and putting in the liquid bag (the separation distance between the cover 95 and the fixed seat 91), which increases the difficulty of taking out and putting in the liquid bag. If the operating space for taking out and putting in the liquid bag is increased, the thickness of the fixed seat 91 and the length of the guide post 94 will be increased, thereby increasing the space occupied by the heating module 9. Secondly, the structural design of the heating module 9 makes it inconvenient to clean, and it must be located on the surface of the body 90 of the blood purification device 900, rather than being embedded in the body 90. The heating module 9 protruding from the body 90 increases the risk of it colliding with external objects. Utility Model Content

[0005] The primary objective of this invention is to provide a heating module that is easy to clean, allows for easy placement and removal of liquid bags, and can be embedded within the body of a blood purification device.

[0006] The second objective of this invention is to provide a blood purification device equipped with the aforementioned heating module.

[0007] To achieve the first objective of this utility model, a heating module is provided, including a fixed base, a heating plate, and a cover plate. The fixed base has a receiving cavity, an opening, and a first receiving recess. The opening penetrates the first side wall of the fixed base and communicates with the receiving cavity. The first receiving recess is located at the opening and has a first locking fitting. The bottom of the receiving cavity has a second receiving recess, and the heating plate is installed in the second receiving recess. The first side of the cover plate has a second locking fitting and at least two clearance notches. The second locking fitting is located between the two clearance notches. The second side of the cover plate is rotatably connected to the second side of the fixed base. The cover plate can be rotated into the receiving cavity, so that the first locking fitting and the second locking fitting are locked together, and the clearance notches communicate with the receiving cavity.

[0008] As can be seen above, the rotating connection between the fixed base and the cover plate makes it more convenient and easier to operate when placing and removing the liquid bag, and also makes it easier to clean the heating module. In addition, it allows the heating module to be embedded in the body of the blood purification equipment, so that the cover plate can be basically flush with the outer surface of the body, thereby reducing the risk of the heating module colliding with external objects, and improving the aesthetics of the blood purification equipment.

[0009] A further solution is that the inner side of the cover plate is provided with a third receiving recess, and the third receiving recess is provided with a heat-preventing block. The heat-preventing block is provided with two clearance grooves, and the two clearance grooves correspond one-to-one with two clearance notches. The second receiving recess is also provided with a heat-preventing strip assembly, which surrounds the outer periphery of the heating plate.

[0010] As can be seen from the above, the heat dissipation block and heat dissipation strip assembly can improve the heating effect of the heating module on the liquid bag, and at the same time improve the heat preservation effect of the heating module.

[0011] A preferred embodiment is that the heat sink has a first through hole and a wiring channel, and the bottom of the mounting base has a second through hole near the second side wall of the mounting base; the heating module also includes a temperature measuring component, which is mounted on the cover plate and located in the first through hole.

[0012] As can be seen from the above, the first through hole, the wiring channel, and the second through hole facilitate the concealed wiring of the temperature measuring component, while also preventing the cables connected to the temperature measuring component from being affected by the temperature of the heating plate; the temperature measuring component is used to measure the temperature of the heated liquid bag, preventing the liquid bag temperature from being too low or too high.

[0013] Another preferred embodiment is that the heating module also includes two pipe clamps, which correspond one-to-one with two clearance notches. The pipe clamps are mounted on the fixed base and have through grooves. When the cover plate can be rotated into the receiving cavity, the pipe clamps are located in the third receiving recess and between the clearance notch and the clearance groove.

[0014] As can be seen from the above, the pipe clamp can better clamp, fix and support the inlet and outlet pipes of the liquid bag, and prevent the inlet and outlet pipes from being pulled by gravity and causing the bag body to be pulled.

[0015] Another preferred embodiment is that the bottom of the receiving cavity is also provided with a hanging pin assembly, and the heat dissipation block is also provided with a clearance groove assembly. When the cover can be rotated into the receiving cavity, the hanging pin assembly extends into the clearance groove assembly.

[0016] As can be seen above, the hanging pin assembly is used to cooperate with the corresponding through holes on the liquid bag to support and position the liquid bag, preventing the liquid bag from falling directly from the heating module during the loading and unloading process.

[0017] Another preferred embodiment is that the heating module also includes a magnet and a magnetic switch; the magnet is installed in the third receiving recess, and the bottom of the receiving cavity is provided with a fourth receiving recess, and the magnetic switch is installed in the fourth receiving recess; when the cover can be rotated into the receiving cavity, the magnet is facing the magnetic switch.

[0018] A further alternative is to use a reed switch, Hall effect sensor, magnetic proximity switch, or electromagnetic relay as the magnetic switch.

[0019] As can be seen from the above, this design can detect whether the cover is closed, so as to prevent the liquid bag from accidentally falling off the heating module during the heating process, and at the same time ensure the heating effect of the heating module on the liquid bag.

[0020] A further proposed solution is that the cover plate includes a plate body and a handle. When the cover plate is rotated into the receiving cavity, the outer side of the plate body is flush with the top surface of the fixed seat, and the handle is located on the outer side of the plate body. The plate body and the fixed seat are connected by a hinge. The first locking component is a ball catch, and the second locking component is a snap fastener, or the first locking component is a magnetic snap fastener, and the second locking component is an iron sheet.

[0021] As can be seen above, ensuring that the outer surface of the plate is flush with the top surface of the mounting base guarantees that the heating module, once installed on the body of the blood purification equipment, is flush with the surface of the body, thereby reducing the risk of the heating module being impacted by external objects and also improving the aesthetics of the blood purification equipment. The handle design allows users to more easily open or close the cover. The design of the first and second locking fittings ensures a reliable fixed connection between the cover and the mounting base, preventing the cover from opening on its own without external force, and also reducing the assembly difficulty of the first and second locking fittings.

[0022] To achieve the second objective of this utility model, this utility model provides a blood purification device, including a body, wherein the blood purification device further includes the aforementioned heating module; the fixing base is integrally formed with the body, or the body is provided with an installation recess, and the heating module is installed in the installation recess.

[0023] As can be seen from the above, by incorporating the heating module, the blood purification equipment becomes more convenient and easier to operate when taking out and putting in the fluid bag, and it is also easier to clean the heating module. In addition, the heating module can be embedded in the body and is basically flush with the surface of the body, which reduces the risk of the heating module being impacted by external objects and improves the aesthetics of the blood purification equipment.

[0024] A further option is that the blood purification equipment also includes a control system and a level sensor. The control system is located inside the machine body and is electrically connected to the heating module, while the level sensor is located inside the machine body and is electrically connected to the control system.

[0025] As can be seen from the above, the horizontal sensor is used to detect whether the current state of the blood purification equipment exceeds the preset tilt threshold. When the blood purification equipment tilts beyond the threshold, it promptly feeds back to the control system, prompting the control system to issue an alarm to remind the user to adjust the placement of the blood purification equipment. This ensures the safe operation of the blood purification equipment, guarantees accurate treatment parameters and stable treatment effects, and avoids risks such as leakage and air embolism caused by equipment tilting. Attached Figure Description

[0026] Figure 1 This is an exploded view of the heating module of an existing blood purification device.

[0027] Figure 2 This is a partial structural diagram of an existing blood purification device.

[0028] Figure 3 This is a structural diagram of an embodiment of the blood purification device of this utility model.

[0029] Figure 4 This is a structural diagram of an embodiment of the blood purification device of this utility model, with some components omitted.

[0030] Figure 5 This is a schematic diagram of the heating module in an embodiment of the blood purification device of this utility model.

[0031] Figure 6 This is a cross-sectional schematic diagram of the heating module in an embodiment of the blood purification device of this utility model.

[0032] Figure 7 This is a schematic diagram of the structure of the fixing base of the heating module in an embodiment of the blood purification equipment of this utility model.

[0033] Figure 8 This is a first example diagram of the first locking fitting and the second locking fitting in an embodiment of the blood purification device of this utility model.

[0034] Figure 9 This is a second example diagram of the first locking fitting and the second locking fitting in an embodiment of the blood purification device of this utility model.

[0035] Figure 10 This is a structural diagram of the heating module of an embodiment of the blood purification device of this utility model, with some components omitted.

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0037] Blood purification equipment examples Reference Figure 3 and Figure 4 The blood purification device 100 includes a body 101, a level sensor 102, a heating module 103, and a control system. The level sensor 102 and the heating module 103 are both electrically connected to the control system.

[0038] The heating module 103 is embedded in the body 101. Preferably, the outer surface of the heating module 103 is basically flush with the outer surface of the body 101 to reduce the risk of the heating module 103 being hit by external objects and to improve the aesthetics of the blood purification device 100.

[0039] Combination Figure 5 and Figure 6The heating module 103 includes a fixing base 1, a heating plate 2, and a cover plate 3. In this embodiment, the fixing base 1 is preferably integrally formed on the body 101 to simplify the assembly steps, reduce the number of parts, and better make the outer surface of the heating module 103 basically flush with the outer surface of the body 101. Of course, as another optional solution, in other embodiments, a mounting recess may be provided on the body 101. When the heating module 103 is assembled with the body 101, the fixing base 1 is placed in the mounting recess and fixed to the body 101 by locking components (such as bolts).

[0040] Combination Figure 7 The mounting base 1 is provided with a receiving cavity 11, an opening 12, a first receiving recess 13, a second through hole 14, and a fourth receiving recess 15. The receiving cavity 11 is recessed from the top of the mounting base 1 (i.e., the side near the outer surface of the body 101) towards the bottom of the mounting base 1. The opening 12 penetrates the first side wall of the mounting base 1 and communicates with the receiving cavity 11. When the mounting base 1 is mounted on the body 101, the opening 12 is preferably located at the edge of the body 101 [such as the junction of different adjacent surfaces of the body 101 (i.e., the intersecting edge of two adjacent surfaces)]. This effectively prevents interference between the liquid bag's inlet and outlet pipes and the body 101 when the heated liquid bag is being placed or removed. This also prevents the liquid bag from being bent after it is installed on the heating module 103, thus avoiding poor liquid flow and effectively reducing safety risks.

[0041] The bottom of the receiving cavity 11 is provided with a second receiving recess 111, which is recessed from the bottom of the receiving cavity 11 toward the bottom of the fixing base 1. A first receiving recess 13 is provided at the opening 12, which is recessed from the bottom of the receiving cavity 11 toward the bottom of the fixing base 1. A second through hole 14 is provided near the second side wall of the fixing base 1, and the second through hole 14 penetrates the fixing base 1 in the depth direction of the receiving cavity 11. The second through hole 14 is used for cable routing. A fourth receiving recess 15 is provided between the first receiving recess 13 and the second receiving recess 111, which is recessed from the bottom of the receiving cavity 11 toward the bottom of the fixing base 1. The second side wall is arranged opposite to the first side wall.

[0042] The heating plate 2 is disposed within the second receiving recess 111. Preferably, the second receiving recess 111 is also provided with a heat-preventing strip assembly 1111. The heat-preventing strip assembly 1111 surrounds the outer periphery of the heating plate 2, creating a gap between the heating plate 2 and the bottom of the second receiving recess 111. This prevents the heating plate 2 from getting too close to the fixing seat 1, which helps extend the service life of the fixing seat 1. In addition, the heat-preventing strip assembly 1111 can effectively block direct heat transfer between the heating plate 2 and the fixing seat 1, ensuring the heating effect on the liquid bag while preventing the fixing seat 1 from being in a high-temperature working environment for a long time, thus slowing down the aging rate of the fixing seat 1.

[0043] Furthermore, the second receiving recess 111 is also provided with a connecting column assembly 1112, which is used to connect with the heating plate 2 and support the heating plate 2, while also ensuring that a gap of the required size is formed between the heating plate 2 and the bottom of the second receiving recess 111.

[0044] In addition, the bottom of the second receiving recess 111 is provided with a third through hole 112. The third through hole 112 penetrates the fixing seat 1 in the depth direction of the receiving cavity 11. The third through hole 112 is used for the cable between the heating plate 2 and the control system to facilitate the electrical connection between the heating plate 2 and the control system and optimize the cable routing path.

[0045] The bottom of the receiving cavity 11 is provided with a hanging pin assembly 113, which includes multiple hanging pins distributed around the outer periphery of the second receiving recess 111. Preferably, the multiple hanging pins are distributed on opposite sides of the second receiving recess 111, wherein the line connecting the opposite sides of the second receiving recess 111 is preferably perpendicular to the line connecting the first sidewall and the second sidewall of the fixing base 1. The hanging pin assembly 113 is used to cooperate with the corresponding through hole on the liquid bag to support and position the liquid bag, preventing the liquid bag from falling directly from the heating module 103 during the loading and unloading process.

[0046] The second side of the cover plate 3 is rotatably connected to the second side of the fixed base 1. Preferably, the cover plate 3 is rotatably connected to the fixed base 1 via a hinge 10, wherein the fixed base 1 has a slot for accommodating the hinge 10, thereby achieving a concealed installation of the hinge 10. The movable connection between the cover plate 3 and the fixed base 1 via the hinge 10 facilitates the concealed installation of the heating module 103. Especially when the fixed base 1 is integrally formed on the body 101, the design of the hinge 10 can significantly reduce the installation difficulty of the cover plate 3 and optimize the structural design of the body 101 and the cover plate 3.

[0047] In this embodiment, the first side of the cover plate 3 is provided with a second locking fitting 311 and two clearance notches 312, wherein the second locking fitting 311 is located between the two clearance notches 312. When the cover plate 3 can be rotated into the receiving cavity 11, the clearance notches 312 are located at the opening 12 of the fixing seat 1 and communicate with the receiving cavity 11. When the object to be heated is a liquid bag, the two clearance notches 312 can avoid and limit the liquid inlet pipe and liquid outlet pipe of the liquid bag, so as to prevent the liquid inlet pipe and liquid outlet pipe from bending and affecting the liquid flow; when the object to be heated is a coil, the two clearance notches 312 are used to avoid and limit the liquid inlet end and liquid outlet end of the coil. It is understood that in some embodiments, when the number of two clearance notches 312 is three or more, the second locking fitting 311 can be placed between any two adjacent clearance notches 312 and then located elsewhere according to the design space. Correspondingly, the number of the pipe clamps 5 and clearance grooves 3143 are matched with the number of clearance notches 312, and the positions of the pipe clamps 5 and clearance grooves 3143 are matched with the positions of the corresponding clearance notches 312.

[0048] Preferably, the heating module 103 further includes two pipe clamps 5, each corresponding to one of the two clearance notches 312. Each pipe clamp 5 has a through-hole groove 51, such that the clearance notch 312 is located on the extension line of the groove 51 of the corresponding pipe clamp 5. The pipe clamp 5 is fixedly installed on the fixing base 1 and located within the receiving cavity 11, with the pipe clamp 5 positioned between the second receiving recess 111 and the clearance notch 312. By providing the pipe clamps 5, the inlet and outlet pipes (or the inlet and outlet ends of the coil) of the liquid bag can be better clamped, fixed, and supported, preventing the inlet and outlet pipes from being pulled by gravity and causing damage to the bag body (or coil).

[0049] To better accommodate the pipe clamp 5, a third receiving recess 313 is provided on the inner side of the cover plate 3 (i.e., the side of the cover plate 3 facing the receiving cavity 11). The third receiving recess 313 is recessed from the inner side of the cover plate 3 to the outer side of the cover plate 3. Preferably, the cover plate 3 includes an integrally formed plate body 31 and a handle 32. The third receiving recess 313 is provided on the plate body 31, and the second locking fitting 311 and the clearance notch 312 are both provided on the plate body 31; the handle 32 is provided on the outer side of the plate body 31. When the cover plate 3 rotates into the receiving cavity 11, the outer side of the plate body 31 is basically flush with the top surface of the fixing seat 1, so that the outer side of the plate body 31 is basically flush with the outer side of the machine body 101; and the pipe clamp 5 extends into the third receiving recess 313. This design ensures that the heating module 103 is flush with the surface of the body 101 after being embedded in the blood purification device 100, thereby reducing the risk of the heating module 103 being impacted by external objects and improving the aesthetics of the blood purification device 100; while the handle 32 makes it easier for users to open or close the cover 3.

[0050] To ensure the reliability of the fixed connection between the cover plate 3 and the fixed seat 1 and to prevent the cover plate 3 from opening on its own without external force, the first receiving recess 13 of the fixed seat 1 is provided with a first locking engagement 131. When the cover plate 3 rotates into the receiving cavity 11, the first locking engagement 131 locks into the second locking engagement 311.

[0051] Combination Figure 8 In this embodiment, the first locking engagement 131 is a ball-bearing mechanism, that is, the first locking engagement 131 includes a housing, a ball 1312, a spring and an adjusting bolt. The housing is provided with two symmetrically arranged mounting grooves 1311, the first end openings of the mounting grooves 1311 are arranged opposite each other, the ball 1312 is installed in the mounting groove 1311, the adjusting bolt is threaded to the second end opening of the mounting groove 1311, the spring abuts between the ball 1312 and the adjusting bolt, the spring is used to force part of the ball 1312 to extend out of the mounting groove 1311, and the adjusting bolt is used to adjust the magnitude of the thrust of the ball 1312 being pushed into the mounting groove 1311; correspondingly, the second locking engagement 311 includes a tongue 3111, and the opposite sides of the tongue 3111 are provided with arc-shaped grooves 31111. When the cover plate 3 is rotated into the receiving cavity 11, the tongue 3111 is located between the two mounting slots 1311, and the ball 1312 is pushed and engaged in the arc-shaped groove 31111 of the tongue 3111 by the spring; when the cover plate 3 is opened, the tongue 3111 will push the ball 1312 into the mounting slot 1311, thereby separating the ball 1312 from the arc-shaped groove 31111 on the tongue 3111.

[0052] Combination Figure 9 In some embodiments, the first locking engagement 131 may be a magnetic snap fastener, that is, the magnetic snap fastener has a magnet 1313; correspondingly, the second locking engagement 311 is an iron sheet. When the cover plate 3 rotates into the receiving cavity 11, the magnet 1313 and the iron sheet are attracted to each other to fix the cover plate 3 in the closed position.

[0053] The design of the first locking fitting 131 and the second locking fitting 311 enables a reliable fixed connection between the cover plate 3 and the fixed seat 1, preventing the cover plate 3 from opening on its own without external force. It also reduces the assembly difficulty of the first locking fitting 131 and the second locking fitting 311. In addition, the first locking fitting 131 and the second locking fitting 311 both use existing mature parts, so there is no need for them to be designed, processed and produced separately, which helps to reduce costs.

[0054] Combination Figure 10The cover plate 3 has a heat-resistant block 314 in the third receiving recess 313. The heat-resistant block 314 has two clearance grooves 3143, which correspond one-to-one with two clearance notches 312. When the cover plate 3 is rotated into the receiving cavity 11, the heat-resistant block 314 faces the heating plate 2, and the clearance grooves 3143 are located on the extension line of the corresponding pipe groove 51 of the pipe clamp 5, that is, the pipe groove 51 is located between the corresponding clearance groove 3143 and the clearance notch 312. The heat-resistant block 314 can work with the heat-resistant strip assembly 1111 to improve the heating effect of the heating module 103 on the liquid bag, and also improve the heat preservation effect of the heating module 103.

[0055] The heating module 103 also includes a temperature measuring component 4, which is electrically connected to the control system. The temperature measuring component 4 is used to measure the temperature of the heated liquid bag (or coil) to prevent the liquid temperature inside the bag from being too high or too low. A first through hole 3141 is provided on the heat shield 314, penetrating the heat shield 314, and the temperature measuring component 4 is located within the first through hole 3141. The first through hole 3141 allows the temperature measuring component 4 to be closer to the liquid bag, improving its measurement accuracy and precision.

[0056] Preferably, the number of temperature measuring components 4 and first through holes 3141 is two or more, and the two or more temperature measuring components 4 correspond one-to-one with the two or more first through holes 3141. Setting the number of temperature measuring components 4 to two or more allows the temperature of the liquid bag to be obtained more accurately by calculating the average value of the measurement data of multiple temperature measuring components 4, or to achieve a redundant design so that when one temperature measuring component 4 is damaged, the temperature can be measured by another temperature measuring component 4, thereby improving the reliability of the heating module 103.

[0057] Furthermore, a wiring channel 3142 is provided on the back of the heat sink 314 (i.e., the side facing the third receiving recess 313), which connects to the first through hole 3141. The wiring channel 3142 is used to cooperate with the second through hole 14 on the fixing base 1 to realize the concealed wiring of the cable between the temperature measuring component 4 and the control system. On the one hand, this avoids the cable being exposed in the receiving cavity 11, which would affect the heating of the liquid bag, and also protects the cable. On the other hand, it also helps to extend the service life of the cable and improves the aesthetics of the heating module 103.

[0058] In addition, the heat dissipation block 314 is also provided with a relief groove group 3144, which is used to avoid the hanging nail assembly 113, so that when the cover plate 3 can be rotated into the receiving cavity 11, the hanging nail assembly 113 extends into the relief groove group 3144, thereby reliably preventing the liquid bag from falling off.

[0059] Furthermore, the heating module 103 preferably also includes a magnet 61 and a magnetic switch 62, with the magnetic switch 62 electrically connected to the control system. The magnet 61 is installed in the third receiving recess 313 of the cover plate 3, and the magnetic switch 62 is installed in the fourth receiving recess 15. When the cover plate 3 can be rotated into the receiving cavity 11, the magnet 61 is directly opposite the magnetic switch 62. This design can detect whether the cover plate 3 is properly closed to prevent the liquid bag from accidentally falling off the heating module 103 during heating, while also ensuring the heating effect of the heating module 103 on the liquid bag. The magnetic switch 62 can be a reed switch, a Hall sensor, a magnetic proximity switch, or an electromagnetic relay.

[0060] Because the blood purification device 100 contains various liquid storage or circulation components such as dialysate and waste fluid, excessive tilting of the device may lead to seal failure, resulting in leakage that could corrode the equipment or pollute the environment. Furthermore, core parameters such as dialysate ratio and ultrafiltration volume calculation rely on stable liquid levels; tilting can cause measurement errors, affecting treatment efficacy. Therefore, a level sensor 102 is installed within the device body 101. This sensor detects whether the current state of the blood purification device 100 exceeds a preset tilt threshold and promptly feeds feedback to the control system when the device tilts beyond this threshold. This prompts the control system to issue an alarm, alerting the user to adjust the placement of the device. This ensures the safe operation of the blood purification device 100, guarantees accurate treatment parameters and stable treatment effects, and avoids risks such as leakage and air embolism caused by device tilting. The control system can issue alarm prompts through the display screen 104 of the blood purification equipment 100, and / or set up an audible and / or visual alarm module for the blood purification equipment 100 to issue audible and / or visual alarm prompts when the blood purification equipment 100 tilts beyond the tilt threshold.

[0061] In summary, the design of the blood purification device 100 and its heating module 103 makes it more convenient and easier to operate when placing and removing the liquid bag, and also makes cleaning the heating module 103 easier. In addition, the heating module 103 can be embedded in the body 101 of the blood purification device 100 so that the cover plate 3 can be basically flush with the outer surface of the body 101, thereby reducing the risk of the heating module 103 colliding with external objects and improving the aesthetics of the blood purification device 100.

[0062] Finally, it should be emphasized that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heating module, comprising a mounting base, a heating plate, and a cover plate, characterized in that: The fixing seat has a receiving cavity, an opening and a first receiving recess. The opening penetrates the first side wall of the fixing seat and communicates with the receiving cavity. The first receiving recess is located at the opening and a first locking fitting is provided in the first receiving recess. The bottom of the receiving cavity is provided with a second receiving recess, and the heating plate is installed in the second receiving recess; The first side of the cover plate is provided with a second locking engagement and at least two clearance notches, the second locking engagement is located between the two clearance notches, and the second side of the cover plate is rotatably connected to the second side of the fixed seat; The cover plate can be rotated into the receiving cavity, so that the first locking fitting and the second locking fitting are locked together, and the clearance notch communicates with the receiving cavity.

2. The heating module according to claim 1, characterized in that: The inner side of the cover plate is provided with a third receiving recess, and the third receiving recess is provided with a heat-preventing block. The heat-preventing block is provided with two clearance grooves, and the two clearance grooves correspond one-to-one with the two clearance notches. The second receiving recess is also provided with heat dissipation protection strips, which surround the outer periphery of the heating plate.

3. The heating module according to claim 2, characterized in that: The heat-resistant block is provided with a first through hole and a wiring channel, and the bottom of the fixing base is provided with a second through hole near the second side wall of the fixing base; The heating module also includes a temperature measuring component, which is installed on the cover plate and located inside the first through hole.

4. The heating module according to claim 2, characterized in that: The heating module also includes two pipe clamps, which correspond one-to-one with the two clearance notches. The pipe clamps are mounted on the fixed base and have through-holes. When the cover plate is rotatable into the receiving cavity, the pipe clamp is located in the third receiving recess, and the pipe clamp is located between the clearance notch and the clearance groove.

5. The heating module according to claim 2, characterized in that: The bottom of the receiving cavity is also provided with a hanging nail assembly, and the heat dissipation block is also provided with a clearance groove group. When the cover plate can be rotated into the receiving cavity, the hanging nail assembly extends into the clearance groove group.

6. The heating module according to claim 2, characterized in that: The heating module also includes a magnet and a magnetic switch; The magnet is installed in the third receiving recess, and the bottom of the receiving cavity is also provided with a fourth receiving recess, and the magnetic switch is installed in the fourth receiving recess; When the cover plate is rotatable into the receiving cavity, the magnet is facing the magnetic switch.

7. The heating module according to claim 6, characterized in that: The magnetic switch is a reed switch, a Hall sensor, a magnetic proximity switch, or an electromagnetic relay.

8. The heating module according to any one of claims 1 to 7, characterized in that: The cover plate includes a plate body and a handle. When the cover plate is rotated into the receiving cavity, the outer side of the plate body is flush with the top surface of the fixed seat, and the handle is located on the outer side of the plate body. The plate and the fixed base are connected by a hinge; The first locking component is a ball-operated latch, and the second locking component is a snap-fit, or The first locking component is a magnetic buckle, and the second locking component is an iron sheet.

9. A blood purification device, including a main body, characterized in that: The blood purification device further includes a heating module as described in any one of claims 1 to 8; The mounting base is integrally formed with the machine body, or The machine body has a mounting recess, and the heating module is installed in the mounting recess.

10. The blood purification device according to claim 9, characterized in that: The blood purification device also includes: A control system is located inside the machine body and electrically connected to the heating module; A level sensor is located inside the machine body and is electrically connected to the control system.

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