Blood purification apparatus

Abstract

The application discloses a blood purification device, which comprises a shell, a purification device, a pipeline, a clamping device, a peristaltic pump and a heating device. The purification device is installed on the shell and used for purifying blood taken from a human body. The pipeline is used for connecting the purification device and blood vessels of the human body to form a blood circulation loop. The clamping device is installed on the front surface of the shell and used for clamping the pipeline and controlling the pipeline to be turned on or turned off. The peristaltic pump is installed on the front surface of the shell and connected to the pipeline and used for driving blood in the pipeline to flow. The heating device is installed on the side surface of the shell and used for heating the blood in the pipeline to a preset temperature, so that the blood reaching the preset temperature returns to the human body through the pipeline. Through the above arrangement, the space volume of the shell of the blood purification device can be better utilized, so that the integration and miniaturization of the space volume of the shell are realized, and the flexibility and convenience of the mechanical structure of the blood purification device are improved, and the use of the blood purification device is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a blood purification equipment. BACKGROUND

[0002] At present, blood purification treatment needs to be realized by blood purification equipment, wherein the basic steps of blood purification treatment process are: the blood of human body is led out of the body and passes through a purification device to remove certain pathogenic substances in the blood, and then the purified blood is returned to the human body, so as to achieve the purpose of purifying blood and treating diseases. According to the difference of blood purification principle of blood purification treatment, the blood purification treatment method of blood purification equipment can be divided into different treatment modes, such as hemodialysis, hemoperfusion, plasma exchange, immunoadsorption, hemofiltration, etc.

[0003] However, the overall mechanical structure of the existing blood purification equipment is not flexible, and the operation is not convenient, which brings inconvenience to the use of the blood purification equipment and reduces the application range of the blood purification equipment. SUMMARY

[0004] Therefore, the present application provides a blood purification equipment.

[0005] The present application provides a blood purification equipment, which comprises:

[0006] A shell having a front surface and a side surface adjacent to the front surface;

[0007] A purification device installed in the shell, wherein the purification device is used for purifying the blood taken from the human body;

[0008] A pipeline used for connecting the purification device and the blood vessel of the human body, wherein the pipeline forms a blood circulation loop from the human body via the purification device to the human body;

[0009] A clamping device installed on the front surface of the shell, wherein the clamping device is used for clamping the pipeline and can control the pipeline to be turned on or turned off;

[0010] A peristaltic pump installed on the front surface of the shell and connected to the pipeline, wherein the peristaltic pump is used for driving the blood in the pipeline to flow;

[0011] A heating device installed on the side surface of the shell, wherein the heating device is used for heating the blood in the pipeline to a preset temperature, so that the blood reaching the preset temperature returns to the human body through the pipeline.

[0012] The blood purification equipment provided in the application is provided with a peristaltic pump and a hose clamp on the front surface of the shell, so that the pipeline is installed on the peristaltic pump and the clamping device on the front surface of the shell, the convenience of pipeline installation is improved, the heating device is installed on the side surface of the shell, the space volume of the shell of the blood purification equipment can be better utilized, the layout space on the front surface of the shell is not occupied, so that the integration and miniaturization of the space volume of the shell are realized, and the flexibility and convenience of the mechanical structure of the blood purification equipment are improved, so that the use of the blood purification equipment is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by the drawings without creative labor for those skilled in the art.

[0014] Figure 1 The structural schematic diagram of the blood purification equipment provided in the embodiment of the application is shown in the figure.

[0015] Figure 2 The working principle schematic diagram of the blood purification equipment provided in the embodiment of the application is shown in the figure.

[0016] Figure 3 The structural schematic diagram of the clamping device provided in the embodiment of the application is shown in the figure, and the second end of the clamping arm is in the first position.

[0017] Figure 4 The structural schematic diagram of the clamping device provided in the embodiment of the application is shown in the figure, and the second end of the clamping arm is in the second position.

[0018] Figure 5 The structural schematic diagram of the clamping arm and the fixed seat provided in the embodiment of the application is shown in the figure.

[0019] Figure 6 The sectional view schematic diagram of the clamping device provided in the embodiment of the application is shown in the figure, the first embodiment of the reset assembly is shown in the figure, and the second end of the clamping arm is in the first position.

[0020] Figure 7 The sectional view schematic diagram of the clamping device provided in the embodiment of the application is shown in the figure, the first embodiment of the reset assembly is shown in the figure, and the second end of the clamping arm is in the second position.

[0021] Figure 8 The sectional view schematic diagram of the clamping device provided in the embodiment of the application is shown in the figure, the second embodiment of the reset assembly is shown in the figure, and the second end of the clamping arm is in the first position.

[0022] Figure 9A cross-sectional view of the clamping device according to the embodiment of the present application is shown, wherein the second end of the clamping arm is in the second position, and the second embodiment of the reset assembly is shown;

[0023] Figure 10 An embodiment of the present application is shown, wherein the heating device and the shell are suspended by the first damping structure, and a partial enlarged view of the position of the first damping structure is shown;

[0024] Figure 11 An embodiment of the present application is shown, wherein the heating device and the shell are suspended by the traction structure, and a partial enlarged view of the position of the traction structure is shown from the first perspective;

[0025] Figure 12 An embodiment of the present application is shown, wherein the heating device and the shell are suspended by the traction structure, and a partial enlarged view of the position of the traction structure is shown from the second perspective;

[0026] Figure 13 An embodiment of the present application is shown, wherein the heating device and the shell are suspended by the traction structure, and a partial enlarged view of the position of the traction structure is shown from the second perspective;

[0027] Figure 14 An embodiment of the present application is shown, wherein the heating device and the shell are suspended by the traction structure, and a partial enlarged view of the position of the traction structure is shown from the second perspective;

[0028] Figure 15 An embodiment of the present application is shown, wherein the heating device and the shell are suspended by the traction structure, and a partial enlarged view of the position of the traction structure is shown from the second perspective;

[0029] Figure 16 An embodiment of the present application is shown, wherein the heating device and the shell are suspended by the traction structure, and a partial enlarged view of the position of the traction structure is shown from the second perspective; Figure 15

[0030] Figure 17 An embodiment of the present application is shown, wherein the heating device and the shell are suspended by the traction structure, and a partial enlarged view of the position of the traction structure is shown from the second perspective;

[0031] Figure 18 An embodiment of the present application is shown, wherein the heating device and the shell are suspended by the traction structure, and a partial enlarged view of the position of the traction structure is shown from the second perspective;

[0032] Figure 19 An embodiment of the present application is shown, wherein the heating device and the shell are suspended by the traction structure, and a partial enlarged view of the position of the traction structure is shown from the second perspective;

[0033] Figure 20 ​A structure diagram of the heating device with the clamping structure is shown in the figure, a local enlarged diagram of the position of the clamping structure is shown in the figure, and the clamping structure is in a locked state;

[0034] Figure 21 A structure diagram of the heating device with the clamping structure is shown in the figure, a local enlarged diagram of the position of the clamping structure is shown in the figure, and the clamping structure is in an unlocked state;

[0035] Figure 22 A structure diagram of the heating device on the side of the shell is shown in the figure, and the operation structure shown in the figure is in a first state;

[0036] Figure 23 A structure diagram of the heating device on the side of the shell is shown in the figure, and the operation structure shown in the figure is in a second state;

[0037] Figure 24 A structure diagram of the operation structure, the locking structure and the cover plate is shown in the figure, a local enlarged diagram of the position of the locking structure is shown in the figure, and the operation structure is in a first state;

[0038] Figure 25 A structure diagram of the operation structure, the locking structure and the cover plate is shown in the figure, a local enlarged diagram of the position of the locking structure is shown in the figure, and the operation structure is in a second state;

[0039] Figure 26 A structure diagram of the heating device on the side of the shell is shown in the figure, a local enlarged diagram of the position of the locking structure is shown in the figure, and the operation structure is in a first state;

[0040] Figure 27 A structure diagram of the heating device on the side of the shell is shown in the figure, a local enlarged diagram of the position of the locking structure is shown in the figure, and the operation structure is in a second state;

[0041] Figure 28 A structure diagram of the flip cover of the peristaltic pump when the flip cover is opened is shown in the figure;

[0042] Figure 29 A structure diagram of the flip cover of the peristaltic pump when the flip cover is closed is shown in the figure;

[0043] Figure 30 A structure diagram of the base is shown in the figure;

[0044] Figure 31 A structure diagram of the flip cover of the peristaltic pump when the flip cover is opened is shown in the figure;

[0045] Figure 32 Structure diagram of the peristaltic pump when the cover is closed according to an embodiment of the present application;

[0046] Figure 33 Structure diagram of the pump head rotor according to an embodiment of the present application;

[0047] Figure 34 Sectional view diagram of the pump head rotor according to an embodiment of the present application, showing the local enlarged diagram of the positions where the fixing member and the blocking member are located;

[0048] Figure 35 Structure diagram of the pump head rotor provided with the mounting position according to an embodiment of the present application;

[0049] Figure 36 Structure diagram of the hand-held structure mounted on the pump head rotor according to an embodiment of the present application;

[0050] Figure 37 Installation diagram of the hand-held structure and the pump head rotor according to an embodiment of the present application.

[0051] Explanation of the reference signs:

[0052] 100, blood purification apparatus; 10, shell; 11, front face; 12, side face; 13, accommodating groove; 14, clamping groove; 20, purification device; 30, pipeline; 31, first pipeline section; 32, second pipeline section; 40, clamping device; 40a, arterial clamp; 40b, venous clamp; 41, fixing assembly; 411, fixing seat; 412, base; 413, butt joint part; 42, clamping arm; 421, first end; 422, second end; 43, abutting piece; 44, reset assembly; 441, elastic piece; 442, transmission piece; 443, first magnetic piece; 444, second magnetic piece; 45, limiting hole; 46, rotating shaft; 50, peristaltic pump; 50a, blood pump; 50b, replacement fluid pump; 51, base; 511, containing cavity; 512, opening; 513, limiting groove; 52, flip cover; 53, pump head rotor; 531, pump core seat; 5311, fixing groove; 5312, mounting position; 532, extrusion roller; 54, limiting structure; 541, convex point; 55, supporting piece; 56, buffer piece; 57, fixing piece; 571, head; 572, extending part; 58, blocking piece; 59, handheld structure; 591, insertion part; 592, rocker; 60, heating device; 61, heating cavity; 62, cover plate; 621, connecting seat; 63, heating plate; 631, heat transfer film piece; 632, heating film piece; 633, heat insulation film piece; 634, frame; 71, venous pot; 72, heparin pump; 73, blood detector; 74, replacement fluid bag; 75, balance; 76, liquid level detector; 77, bubble detector; 78, clamping arm; 80, first damping structure; 81, knob; 82, square shaft; 90, traction structure; 91, traction piece; 911, third end; 912, fourth end; 92, limiting sliding groove; 110, second damping structure; 111, rotating shaft; 112, damping gasket; 120, clamping structure; 121, first clamping structure; 1211, barb; 122, second clamping structure; 1221, convex hook; 123, unlocking piece; 130, operation structure; 140, clamping structure; 141, clamping piece; 142, pushing piece; 1421, round wheel; 1422, blocking piece; 143, sliding rail; 144, sliding block; 150, support; 160, rotating wheel. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0054] It should also be understood that the terms used in the specification herein are for the purpose of describing particular embodiments and do not intend to limit the application. As used in the specification and the appended claims herein, the singular forms "a," "an" and "the" are intended to include plural forms unless the context clearly dictates otherwise.

[0055] It should be further understood that the term "and / or" used in the specification and the appended claims herein means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0056] At present, blood purification treatment needs to be realized through a blood purification device to implement a treatment process, wherein a basic step of the blood purification treatment process is to lead blood of a human body out of the body and remove certain pathogenic substances in the blood through a purification device, and then to return the purified blood to the human body, so as to achieve the purpose of purifying blood and treating diseases. According to the difference of the blood purification principle of blood purification treatment, the blood purification treatment method of the blood purification device can be divided into different treatment modes, such as hemodialysis, hemoperfusion, plasma exchange, immunoadsorption, hemofiltration, etc.

[0057] However, the overall mechanical structure of the existing blood purification device is not flexible and is inconvenient to operate, which brings inconvenience to the use of the blood purification device and reduces the application range of the blood purification device.

[0058] When the blood purification device is produced in a production workshop, all components need to be designed on the shell of the blood purification device, and there is no clear reference standard for the mechanical structure design of the blood purification device, which is designed by artificial subjective design. However, unlike common electronic devices such as computers and mobile phones, the blood purification device as a medical device not only needs to meet the registration requirements of medical devices, but also needs to consider the convenience and safety when used in a specific place such as a hospital. If the mechanical structure of the blood purification device is designed to be very heavy and inflexible, even if the software control function of the blood purification device is designed to be very complete and perfect, it will also bring great inconvenience to the use of the blood purification device, and ultimately lead to the abandonment of the blood purification device.

[0059] Therefore, the embodiment of the present application proposes a blood purification device which is flexible in structure, convenient to operate and use.

[0060] Please refer to Figures 1-2As shown, the blood purification equipment 100 proposed in the embodiments of the present application comprises a shell 10, a purification device 20, a pipeline 30, a clamping device 40, a peristaltic pump 50 and a heating device 60. The shell 10 has a front face 11 and a side face 12 adjacent to the front face 11. The purification device 20 is installed on the shell 10 and is used for purifying blood taken from a human body. The pipeline 30 is used for connecting the purification device 20 and a blood vessel of the human body, and forms a blood circulation loop from the human body via the purification device 20 to the human body. The clamping device 40 is installed on the front face 11 of the shell 10 and is used for clamping the pipeline 30 and can control the pipeline 30 to be turned on or turned off. The peristaltic pump 50 is installed on the front face 11 of the shell 10 and is connected to the pipeline 30, and is used for driving blood in the pipeline 30 to flow. The heating device 60 is installed on the side face 12 of the shell 10 and is used for heating blood in the pipeline 30 to a preset temperature so that the blood reaching the preset temperature is returned to the human body through the pipeline 30.

[0061] The blood purification equipment 100 proposed in the embodiments of the present application has the peristaltic pump 50 and the clamping device 40 installed on the front face 11 of the shell 10, so that a user can directly install the pipeline 30 on the peristaltic pump 50 and the clamping device 40 on the front face 11 of the shell 10, improving the convenience of installing the pipeline 30. The heating device 60 is installed on the side face 12 of the shell 10, which can better utilize the space volume of the shell 10 of the blood purification equipment 100 and will not occupy the layout space of the front face 11 of the shell 10, so as to realize the integration and miniaturization of the space volume of the shell 10 and improve the flexibility and convenience of the mechanical structure of the blood purification equipment 100, facilitating the use of the blood purification equipment 100.

[0062] Exemplarily, as shown in Figure 2 The pipeline 30 comprises a first pipeline segment 31 and a second pipeline segment 32. The first pipeline segment 31 is used for outputting blood of the human body to the purification device 20, which is used for purifying blood of a patient, and then delivering the purified blood back to the human body through the second pipeline segment 32.

[0063] Exemplarily, as shown in Figure 2 The peristaltic pump 50 comprises a blood pump 50a and a replacement fluid pump 50b, and the clamping device 40 comprises an arterial clamp 40a and a venous clamp 40b. The arterial clamp 40a is used for clamping the first pipeline segment 31, and the venous clamp 40b is used for clamping the second pipeline segment 32. In some use scenarios, the blood purification equipment 100 can further comprise a venous bottle 71, a heparin pump 72, a blood detector 73, a replacement fluid bag 74, a balance 75 for weighing, a liquid level detector 76 and a bubble detector 77. The above-mentioned components are all installed on the shell 10, as shown in Figure 1As shown, the heparin pump 72, the bubble detector 77 and the blood detector 73 can be arranged on the front face 11 of the housing 10 and staggered with the peristaltic pump 50 and the clamping device 40, and the space is arranged reasonably; the purification device 20 can be installed on the side face 12 of the housing 10 through the clamping arm 78, and the clamping arm 78 can be located above the heating device 60, so that the space volume of the housing 10 of the blood purification equipment 100 can be used better, and the layout space of the front face 11 of the housing 10 is not occupied, so that the integration and miniaturization of the space volume of the housing 10 are realized.

[0064] When the patient performs blood purification treatment, each component on the blood purification equipment 100 will be in a normal operating state to ensure the safety of the patient's blood purification treatment. The component positions installed on the housing 10 are reasonably arranged in the embodiments of the present application, so that the space volume of the blood purification equipment 100 occupies less, the structure is more miniaturized, the control process of the blood purification equipment 100 is more flexible, the use of the blood purification equipment 100 is more convenient, the overall structure of the blood purification equipment 100 does not occupy too much space volume, and the application range and practical value of the blood purification equipment 100 are improved.

[0065] When the blood purification equipment 100 is applied in different treatment modes, it can be correspondingly expanded. For example, when the blood purification equipment 100 is applied in the hemodialysis treatment mode, the purification device 20 includes a dialyzer. For another example, when the blood purification equipment 100 is applied in the plasma exchange treatment mode, the purification device 20 includes a plasma separator, and the first pipeline section 31 is used to output the blood of the patient to the plasma separator, separate the blood in the human body into plasma and cell components, remove the fatal plasma or selectively remove some pathogenic factors in the plasma, and then output the cell components, the purified plasma and the supplemented liquid supplement to the human body through the second pipeline section 32.

[0066] In some embodiments, as Figures 3-9As shown, the clamping device 40 comprises a fixing assembly 41, a clamping arm 42, an abutting piece 43 and a reset assembly 44, the fixing assembly 41 is installed on the front face 11 of the shell 10. The clamping arm 42 comprises a first end 421 and a second end 422 arranged oppositely, the first end 421 is rotatably connected with the fixing assembly 41, and the clamping arm 42 and the fixing assembly 41 enclose a limiting hole 45 for the pipeline 30 to pass through. The abutting piece 43 is connected to the second end 422, and the second end 422 can move between a first position and a second position relative to the fixing assembly 41 to drive the abutting piece 43 to extend into or away from the limiting hole 45, so as to clamp or loosen the pipeline 30. The reset assembly 44 is arranged on the fixing assembly 41 and acts on the second end 422, the second end 422 is used to receive a first force to move from the first position to the second position to drive the abutting piece 43 away from the limiting hole 45, and the reset assembly 44 is used to provide a second force to the second end 422 to drive the second end 422 from the second position to the first position, thereby driving the abutting piece 43 to extend into the limiting hole 45. In this embodiment, the reset function of the clamping arm 42 can be realized by the arrangement of the reset assembly 44, the second end 422 of the clamping arm 42 is used for the user to press, the first position is the starting position of the second end 422, and the second position is below the first position. When the user presses the second end 422 to exert the first force to move the second end 422 from the first position to the second position, the abutting piece 43 will be driven away from the limiting hole 45, so that the pipeline 30 can be put into or taken out of the limiting hole 45, thereby facilitating the installation and disassembly of the pipeline 30. When the pipeline 30 is installed on the clamping device 40, the reset assembly 44 can drive the second end 422 to return to the first position, thereby driving the abutting piece 43 to extend into the limiting hole 45 to clamp the pipeline 30, realizing the automatic reset function, thereby avoiding the problem that the user needs to manually reset.

[0067] In some use scenarios, the clamping device 40 can also be provided with an electromagnetic drive device capable of controlling the abutting piece 43 to block the pipeline 30 when power is off, and the automatic control of the abutting piece 43 can be realized through motor control, thereby realizing the clamping and opening of the pipeline 30, so that the abutting piece 43 can be controlled to block the pipeline 30 when power is off.

[0068] Optionally, the fixing assembly 41 comprises a fixing seat 411 and a base 412, the base 412 is used to be installed to the shell 10, and the fixing seat 411 is connected to the top of the base 412 and can be used to install the clamping arm 42 to clamp the pipeline 30, the first end 421 of the clamping arm 42 is connected to the fixing seat 411 and encloses the limiting hole 45 with the fixing seat 411, and the reset assembly 44 is arranged on the fixing seat 411. The electromagnetic drive device can be installed in the base 412.

[0069] As an implementation form, as Figure 6 and Figure 7As shown, the first end 421 is rotatably connected to the fixing assembly 41 through the rotating shaft 46, the reset assembly 44 comprises an elastic member 441 and a transmission member 442, one end of the elastic member 441 is connected to the transmission member 442, the other end of the elastic member 441 is connected to the fixing base 411 of the fixing assembly 41, the transmission member 442 is connected to the rotating shaft 46, when the second end 422 receives the first force to move from the first position to the second position, the rotating shaft 46 is driven to rotate, thereby driving the elastic member 441 to be compressed through the transmission member 442, the elastic member 441 is used to provide elastic restoring force, and the rotating shaft 46 is driven to rotate through the transmission member 442 to form the second force to the second end 422, thereby driving the second end 422 to move from the second position to the first position. In this embodiment, when the user presses the second end 422 to drive the abutting piece 43 away from the limiting hole 45, the rotating shaft 46 is driven to rotate, thereby driving the elastic member 441 to be compressed through the transmission member 442, the second force is the elastic force generated after the elastic member 441 is compressed, when the pipeline 30 is installed on the clamping device 40, the elastic restoring force of the elastic member 441 is used to drive the second end 422 to return to the first position, so as to realize the automatic reset function. In addition, the elastic force of the elastic member 441 can drive the abutting piece 43 to extend into the limiting hole 45 to clamp the pipeline 30, thereby limiting the pipeline 30 in the limiting hole 45 to prevent the pipeline 30 from falling out of the clamping device 40, thereby playing a role of limiting the pipeline 30.

[0070] For example, the elastic member 441 can be a sheet-shaped structure made of elastic material, and the transmission member 442 can be a lever connected to the rotating shaft 46 and the elastic member 441, the automatic reset is realized by using the elastic force generated after the elastic member 441 is compressed, the structure is simple and easy to realize.

[0071] Optionally, one end of the lever can be provided with a groove, one end of the elastic member 441 can be arranged in the groove of the lever, and the other end can be screwed to the fixing base 411 of the fixing assembly 41 in a threaded connection manner to realize the stable connection between the elastic member 441 and the fixing base 411. Of course, the elastic member 441 can also be installed on the fixing base 411 in other fixing manners. When the second end 422 of the clamping arm 42 is pressed by the user, the rotating shaft 46 is driven to rotate, thereby causing the elastic member 441 embedded in the groove to be compressed due to the rotation of the rotating shaft 46, so that the elastic member 441 is deformed to generate elastic force. When the user releases the second end 422, the force generated by the compressed elastic member 441 to the groove is used to drive the lever to rotate, thereby driving the rotating shaft 46 to rotate to the initial position through the lever, thereby realizing the reset of the clamping arm 42.

[0072] As another embodiment, as shown in FIG. 6, the reset assembly 44 comprises a spring 441 and a transmission member 442, one end of the spring 441 is connected to the transmission member 442, the other end of the spring 441 is connected to the fixing base 411 of the fixing assembly 41, the transmission member 442 is connected to the rotating shaft 46, when the second end 422 receives the first force to move from the first position to the second position, the rotating shaft 46 is driven to rotate, thereby driving the spring 441 to be compressed through the transmission member 442, the spring 441 is used to provide elastic restoring force, and the rotating shaft 46 is driven to rotate through the transmission member 442 to form the second force to the second end 422, thereby driving the second end 422 to move from the second position to the first position. Figure 8 and Figure 9As shown, the reset assembly 44 includes a first magnetic piece 443 and a second magnetic piece 444, and the fixing assembly 41 is provided with a docking portion 413 opposite to the second end 422, the first magnetic piece 443 is arranged on the second end 422, and the second magnetic piece 444 is arranged on the docking portion 413. When the second end 422 is subjected to the first force to move from the first position to the second position, the first magnetic piece 443 is driven to approach the second magnetic piece 444, and the first magnetic piece 443 and the second magnetic piece 444 are configured to repel each other to generate a second force to the second end 422, thereby driving the second end 422 to move from the second position to the first position. In this embodiment, the second force is the repulsion force generated between the first magnetic piece 443 and the second magnetic piece 444. When the user needs to install the pipeline 30 on the clamping device 40, the second end 422 of the clamping arm 42 is pressed, which drives the abutting piece 43 to move away from the limiting hole 45, so as to facilitate the installation of the pipeline 30. After the pipeline 30 is installed on the clamping device 40, once the user releases his hand, due to the repulsion force generated between the first magnetic piece 443 and the second magnetic piece 444, the second end 422 of the clamping arm 42 is pushed to the starting position, i.e., the first position, thereby realizing automatic reset. Moreover, the repulsion force generated between the first magnetic piece 443 and the second magnetic piece 444 can drive the abutting piece 43 to extend into the limiting hole 45 to clamp the pipeline 30, thereby limiting the pipeline 30 in the limiting hole 45 to prevent the pipeline 30 from falling out of the clamping device 40, thereby playing a role of limiting the pipeline 30.

[0073] Exemplarily, the first magnetic piece 443 and the second magnetic piece 444 can adopt magnets with the same polarity, and the principle of same polarity repulsion is used to facilitate the automatic reset of the second end 422 after being pressed. When the user does not press the second end 422, the repulsion force between the first magnetic piece 443 and the second magnetic piece 444 can keep the second end 422 at the first position, avoiding the second end 422 from falling to the second position. Alternatively, since alkaline or acidic substances are easy to drop on the surface of the magnetic piece on the surface of the docking portion 413, the magnet is easy to be damaged. In order to avoid the loss of magnetism of the magnet, the second magnetic piece 444 is arranged inside the docking portion 413, and the first magnetic piece 443 and the second magnetic piece 444 are arranged opposite to each other, thereby realizing the magnetic action of same polarity repulsion between them.

[0074] In some embodiments, as Figures 10-15As shown, the heating device 60 comprises a heating cavity 61 for accommodating the pipeline 30, the heating device 60 is rotationally connected with the shell 10 and can rotate relative to the shell 10 between the third position and the fourth position, the heating device 60 is inclined towards the side 12 of the shell 10 when in the third position to open the heating cavity 61 so that the pipeline 30 can be put into the heating cavity 61, and the heating device 60 is close to the side 12 of the shell 10 when in the fourth position to close the heating cavity 61 so that the blood in the pipeline 30 can be heated in the heating cavity 61. In this embodiment, the heating device 60 can be folded relative to the shell 10 by the rotational connection between the heating device 60 and the shell 10, and the heating device 60 is arranged in a folding manner, which can make better use of the space volume of the shell 10 of the blood purification equipment 100 and will not occupy the layout structure of the front surface 11 of the shell 10. When it is necessary to open the heating cavity 61, the heating device 60 can be rotated outward so that the heating device 60 and the side 12 of the shell 10 form a certain angle to open the heating cavity 61 and put the pipeline 30 into the heating cavity 61, and then the heating device 60 is rotated inward to close the heating cavity 61 and tightly abut against the side 12 of the shell 10, so as to clamp the pipeline 30 to heat the blood in the pipeline 30 while folding the heating device 60 to reduce the volume.

[0075] Optionally, as shown in Figure 10 The side 12 of the shell 10 is inwardly recessed to form a receiving groove 13 matched with the heating device 60, so that the heating device 60 can be accommodated in the receiving groove 13 when in the fourth position, and the outer surface of the shell 10 is substantially flush with the outer surface of the heating device 60 to reduce the volume and make the appearance harmonious and beautiful.

[0076] As an embodiment, as shown in Figure 10 The blood purification equipment 100 further comprises a first damping structure 80, the heating device 60 is rotationally connected with the shell 10 through the first damping structure 80, and the first damping structure 80 is used to provide a first resistance so that the heating device 60 can stay at any position between the third position and the fourth position. In this embodiment, the first damping structure 80 can be arranged between the bottom of the heating device 60 and the bottom of the side 12 of the shell 10, and the first resistance is provided through the arrangement of the first damping structure 80, so that the heating device 60 can hover during the opening process, and the user does not need to hold the heating device 60 with his hand, but can freely take the pipeline 30, which is convenient for the user to operate and greatly facilitates the operation process of the heating device 60. If there is no first resistance during rotation, the damping and stopping effect cannot be achieved, and the heating device 60 may fall down during rotation, which needs to be held by the user at any time, which is relatively inconvenient.

[0077] Optionally, as shown in Figure 10As shown, the first damping structure 80 can include a knob 81 and a square shaft 82 rotatably connected to the knob 81, and the relative rotation between the knob 81 and the square shaft 82 is used to realize the rotation between the heating device 60 and the shell 10. Since the square shaft 82 has a cuboid shape, when the knob 81 rotates, the square shaft 82 can stop at a specific position between the third position and the fourth position, thereby realizing the hovering effect of the heating device 60.

[0078] Alternatively, the first damping structure 80 can also include a circular shaft with multiple spacers, and the relative rotation between the heating device 60 and the shell 10 is realized through the circular shaft with spacers. The friction force generated by the extrusion between the spacers can also generate resistance, thereby realizing the hovering effect of the heating device 60 during rotation.

[0079] As another embodiment, as shown in Figures 11-13 The blood purification device 100 further includes a traction structure 90, which includes a traction member 91 and a limiting sliding groove 92 provided on the shell 10. The traction member 91 includes opposite third and fourth ends 911 and 912. The third end 911 is rotatably connected to the heating device 60, and the fourth end 912 is slidably connected to the limiting sliding groove 92. When the heating device 60 rotates to the third position, the fourth end 912 slides to the limit position of the limiting sliding groove 92, so that the heating device 60 can be kept at the third position by the action of the traction member 91. In this embodiment, when the user opens the heating device 60 with his hand, the traction member 91 slides on the limiting sliding groove 92, and at the same time, the traction member 91 plays a role of pulling and supporting. When the user opens the heating device 60 to a certain angle, the heating device 60 is at the third position, and the heating device 60 can be fixedly and hoveringly kept at this position, thereby realizing the hovering effect during the opening of the heating device 60. The user does not need to hold the heating device 60 with his hand, and can freely take the pipeline 30, which is convenient for the user to operate.

[0080] Alternatively, as shown in Figures 11-13 The traction member 91 can be a rod-shaped structure, the third end 911 of the traction member 91 can be connected to the bottom of the heating device 60 by bolts or other connection methods, and the fourth end 912 of the traction member 91 can be connected to the limiting sliding groove 92 by a limiting shaft. When the user opens the heating device 60, the bottom of the heating device 60 drives the third end 911 of the traction member 91 to rotate, so that the fourth end 912 of the traction member 91 moves along the limiting sliding groove 92 on the shell 10. When the user opens the heating device 60 to a certain angle, the heating device 60 is at the third position, and at this time, the traction member 91 slides to the limit position at the bottom of the limiting sliding groove 92, thereby playing a role of hovering for the heating device 60.

[0081] In some embodiments, asFigures 14-15 As shown, the heating device 60 comprises a cover plate 62 and a heating plate 63 rotatably connected with the cover plate 62, the cover plate 62 is rotatably connected with the shell 10 and can rotate relative to the shell 10 between the third position and the fourth position, and the heating plate 63 is located between the cover plate 62 and the side surface 12 of the shell 10. In the embodiment, the cover plate 62 can be rotatably connected with the shell 10 through the first damping structure 80 or the traction structure 90 to realize the hovering effect during the opening process of the heating device 60.

[0082] Optionally, the number of the heating plate 63 can be one, and the heating plate 63 and the cover plate 62 form a heating cavity 61 for accommodating the pipeline 30. In the embodiment, after the heating device 60 is rotated to the open position from the side surface 12 of the shell 10, the pipeline 30 can be clamped in the heating cavity 61 between the cover plate 62 and the heating plate 63 to heat the liquid in the pipeline 30. Before being returned to the human body, the blood is heated to be approximately the same as the normal temperature of the human body, so as to avoid the discomfort caused by the low-temperature blood and the supplement liquid of the extracorporeal circulation being returned to the patient's body.

[0083] Of course, the number of the heating plate 63 can also be more than one, and the heating plate 63 and the cover plate 62 and the adjacent two heating plates 63 form the heating cavity 61 for accommodating the pipeline 30. In the embodiment, a plurality of heating cavities 61 can be provided, and a plurality of devices requiring heating can be heated at the same time to improve the heating effect, and the plurality of heating plates 63 are folded and arranged, which is compact in structure and reduces the volume.

[0084] In some embodiments, as shown in Figures 14-16 The blood purification device 100 further comprises a second damping structure 110, the heating plate 63 is rotatably connected with the cover plate 62 through the second damping structure 110, and the second damping structure 110 is used to provide a second resistance to enable the relative rotation between the heating plate 63 and the cover plate 62 and to stay at any angle. In the embodiment, the second resistance is provided through the second damping structure 110, and when the user opens the heating plate 63 and the cover plate 62, the angle between the heating plate 63 and the cover plate 62 can be fixed at a preset angle to adjust the size of the opening of the heating cavity 61, so as to facilitate the placement or removal of the pipeline 30, and facilitate the user operation.

[0085] Optionally, as shown in Figures 15-16As shown, the second damping structure 110 may include a rotating shaft 111 and a damping pad 112. The damping pad 112 may be made of nylon material. The cover plate 62 is provided with a connecting seat 621 extending toward the housing 10. The heating plate 63 may be rotatably connected to the connecting seat 621 via the rotating shaft 111. The rotating shaft 111 may be made of bolts. By pressing the damping pad 112 with bolts, the damping pad 112 is deformed, thereby increasing the friction between the bolt and the damping pad 112 during the rotation of the heating plate 63, as well as the friction between the heating plate 63 and the bolts. This allows the heating plate 63 to be suspended at any position between the cover plate 62 and the housing 10, so that the user can easily place and remove the pipeline 30 in the heating chamber 61.

[0086] For example, such as Figure 16 As shown, one side of the heating plate 63 in the width direction is rotatably connected to the connecting seat 621 via a rotating shaft 111, allowing it to hover in the desired position. One end of the rotating shaft 111 is tightly screwed into the thread at the end of the heating plate 63 in the width direction, while the other end passes through both sides of the connecting seat 621 to achieve a rotatable connection. Damping pads 112 are provided on both sides of the connecting seat 621 on the rotating shaft 111. The rotating shaft 111 presses against the outer walls of both sides of the connecting seat 621 to increase friction, enabling the heating plate 63 to achieve a hovering effect. Alternatively, in other examples, a second damping structure 110 can be provided on both sides of the heating plate 63 in the width direction.

[0087] In some embodiments, such as Figure 17 As shown, the heating plate 63 includes a heat transfer diaphragm 631, a heating diaphragm 632, and a heat insulation diaphragm 633 arranged sequentially from the cover plate 62 toward the side 12 of the housing 10. The heating diaphragm 632 generates heat when energized. The side of the heat transfer diaphragm 631 facing away from the heating diaphragm 632 abuts against the pipeline 30 to transfer heat to the blood in the pipeline 30 for heating. The heat insulation diaphragm 633 reflects the heat radiation from the heating diaphragm 632. In this embodiment, the heating diaphragm 632 may be provided with a heating resistance wire. When the heating diaphragm 632 generates heat, the heat is transferred to the liquid in the pipeline 30 through the heat transfer diaphragm 631 to achieve a safe heating function for the liquid in the pipeline 30. The heat transfer diaphragm 631 may be made of a thermally conductive material such as iron to facilitate the transfer of heat generated by the heating diaphragm 632 to the pipeline 30. The heat insulation film 633 can reflect the heat radiation of the heating film 632, thereby improving the heating efficiency of the heating film 632 and reducing the loss of heat from the heating film 632.

[0088] Exemplarily, the heating plate 63 further comprises a frame 634 located on the side of the heat insulation film 633 facing the shell 10, and used for fixing the heat transfer film 631, the heating film 632 and the heat insulation film 633. The second damping structure 110 can be connected between the frame 634 and the connecting seat 621 of the cover plate 62. The heat insulation film 633 can also block the heat emitted by the heating film 632 from damaging the frame 634, thereby protecting the frame 634.

[0089] In some embodiments, as shown in Figures 18-21 The blood purification apparatus 100 further comprises a clamping structure 120, which comprises a first clamping structure 121, a second clamping structure 122 and an unlocking piece 123. The first clamping structure 121 is arranged on the cover plate 62, and the second clamping structure 122 is arranged on the heating plate 63. The first clamping structure 121 is used for clamping the second clamping structure 122 when the cover plate 62 is rotated to the fourth position, so as to lock the cover plate 62 and the heating plate 63. The unlocking piece 123 is used for receiving a third force and acting on the first clamping structure 121, so as to drive the first clamping structure 121 to disengage from the second clamping structure 122, so that the cover plate 62 and the heating plate 63 are unlocked. In this embodiment, when it is needed to put the pipeline 30 into the heating cavity 61, the user can press the unlocking piece 123 to exert the third force on the first clamping structure 121 to unlock, so that the clamping structure 120 can be opened. Then the cover plate 62 can be directly pulled, and the heating plate 63 is opened together, so that the pipeline 30 can be put into the heating cavity 61 between the cover plate 62 and the heating plate 63. Then the heating plate 63 is closed, and the cover plate 62 and the heating plate 63 are locked by the clamping mechanism, so that the heating plate 63 tightly adheres to the pipeline 30, so as to heat the liquid in the pipeline 30. The heating device 60 is buckled on the side surface 12 of the shell 10, and the heating function of the heating plate 63 on the pipeline 30 is realized.

[0090] Optionally, as shown in Figures 20-21 The first clamping structure 121 can be arranged on the upper part of the side of the cover plate 62 facing the heating plate 63, and the second clamping structure 122 can be correspondingly arranged on the upper part of the heating plate 63. The first clamping structure 121 can be provided with a barb 1211, and the second clamping structure 122 can be formed with a hook 1221 clamping the barb 1211. When the cover plate 62 and the heating plate 63 are close to each other, the barb 1211 can be hung on the hook 1221 of the second clamping structure 122, so as to realize the clamping effect.

[0091] Optionally, as shown in Figures 20-21As shown, the unlocking piece 123 can be a spring, one end of the first clamping structure 121 is connected to the spring, and the other end is provided with a hook 1211. The spring can be used to control the opening and locking of the clamping structure 120. When the end of the first clamping structure 121 provided with the hook 1211 is clamped on the protruding hook 1221, the end of the first clamping structure 121 connected to the spring is raised. When the user presses the end of the first clamping structure 121 connected to the spring, the end of the first clamping structure 121 provided with the hook 1211 will pop up, thereby separating from the protruding hook 1221, so that the cover plate 62 and the heating plate 63 can be separated, which is convenient to operate and facilitates the taking and placing of the pipeline 30.

[0092] In some embodiments, as shown in Figures 22-27 As shown, the blood purification device 100 further comprises an operating structure 130 and a locking structure 140. The operating structure 130 is rotationally connected to the cover plate 62 and located on the side of the cover plate 62 facing away from the shell 10. The locking structure 140 comprises a clamping piece 141 and a pushing piece 142. The shell 10 is further provided with a clamping groove 14 matched with the clamping piece 141. The pushing piece 142 is connected to the operating structure 130 and interferes with the clamping piece 141. The operating structure 130 is used to receive a fourth force to rotationally switch between a first state and a second state. When the operating structure 130 rotates to the first state, it can drive the pushing piece 142 to push the clamping piece 141 into the clamping groove 14, so as to lock the heating device 60 and the shell 10. When the operating structure 130 rotates to the second state, it can drive the pushing piece 142 to push the clamping piece 141 out of the clamping groove 14, so as to unlock the heating device 60 and the shell 10. In this embodiment, when the heating device 60 needs to be opened, the user can exert a fourth force to rotate the operating structure 130 to the second state, thereby driving the pushing piece 142 to push the clamping piece 141 out of the clamping groove 14, so that the heating device 60 can be opened to facilitate the taking and placing of the pipeline 30. When the pipeline 30 is placed in the heating cavity 61 or has been taken out of the heating cavity 61, the heating device 60 is folded to be buckled on the side surface 12 of the shell 10. The operating structure 130 is rotated to the first state, thereby driving the pushing piece 142 to push the clamping piece 141 into the clamping groove 14, so as to lock the heating device 60 and the shell 10.

[0093] Optionally, as shown in Figure 22 and Figure 23 The operating structure 130 can be provided as a door handle to facilitate user operation and improve the convenience of the user in opening or closing the heating device 60.

[0094] Optionally, as shown in Figure 24 and Figure 25As shown, the locking structure 140 can be provided on the upper edge of the cover plate 62, and the lower side of the cover plate 62 is rotatably connected to the housing 10. The locking structure 140 enables convenient operation during the opening or closing of the heating device 60.

[0095] Optionally, such as Figures 24-27 As shown, the pusher 142 may include a wheel 1421 connected to the operating structure 130 and located inside the cover plate 62. The outer periphery of the wheel 1421 is provided with a plurality of blocking plates 1422 to form the pusher 142. On the cover plate 62, a slide rail 143 and a slider 144 slidably connected to the slide rail 143 are also provided on one side of the wheel 1421. The locking member 141 is connected to the slider 144 and extends upward. When the wheel 1421 rotates, the slider 144 is located on the movement path of the blocking plate 1422 and interferes with the blocking plate 1422. When the operating structure 130 drives the wheel 1421 to rotate, the blocking plate 1422 will press the slider 144, causing the slider 144 to slide along the slide rail 143 and drive the locking member 141 to move, so that the locking member 141 can be engaged or disengaged from the slot 14.

[0096] Optionally, the operating structure 130 may be equipped with a reset element, such as a torsion spring. When the user rotates the operating structure 130 to the second state, it can drive the wheel 1421 to rotate, so that the blocking plate 1422 drives the slider 144 to move, thereby causing the locking member 141 to disengage from the slot 14, so that the heating device 60 can be separated from the side 12 of the housing 10. When the user releases the operating structure 130, the reset element will drive the operating structure 130 to rotate back to the first state, thereby driving the wheel 1421 and the blocking plate 1422 to rotate back, thereby driving the locking member 141 to extend into the slot 14, realizing the locking between the heating device 60 and the side 12 of the housing 10.

[0097] Optionally, the slide rail 143 extends vertically so that the locking member 141 can move up and down under the action of the slider 144. The slot 14 is located above the locking member 141. When the operating structure 130 rotates to the second state, it drives the locking member 141 to move down and disengage from the slot 14. When the operating structure 130 rotates to the first state, it drives the locking member 141 to move up and engage in the slot 14.

[0098] In some embodiments, such as Figures 28-37As shown, the peristaltic pump 50 comprises a base 51, a flip cover 52, a pump head rotor 53 and a driving assembly. The base 51 is provided with a receiving cavity 511 for accommodating the pipeline 30. The flip cover 52 is rotationally connected with the base 51, and is used to rotate to open or close the receiving cavity 511. The pump head rotor 53 comprises a pump core seat 531 and a squeezing roller 532. The pump core seat 531 is rotationally installed in the receiving cavity 511, and the squeezing roller 532 is rotationally installed in the pump core seat 531. The driving assembly can be realized by a motor, for driving the pump core seat 531 to rotate, so as to drive the squeezing roller 532 to alternately squeeze and release the pipeline 30 to realize pumping of blood. In use, the flip cover 52 is opened to enable the pipeline 30 to be placed into the receiving cavity 511, and the flip cover 52 is closed when the pipeline 30 is placed, and the pump head rotor 53 is located at the center position of the receiving cavity 511. The driving assembly is driven to drive the squeezing roller 532 to alternately squeeze and release the pipeline 30 to realize pumping of blood.

[0099] In some embodiments, as shown in Figure 30 The peristaltic pump 50 further comprises a limiting structure 54 provided on the base 51, for stabilizing the pipeline 30 to prevent the pipeline 30 from falling off when the receiving cavity 511 is opened. In this embodiment, the pipeline 30 is clamped by the limiting structure 54 to be stabilized, so as to avoid the problem of falling off of the pipeline 30 when the receiving cavity 511 is opened.

[0100] Exemplarily, as shown in Figure 30 The receiving cavity 511 has an opening 512, and the pipeline 30 can extend into the receiving cavity 511 through the opening 512. The limiting structure 54 can be provided at the opening 512 to limit the pipeline 30.

[0101] Optionally, as shown in Figure 30 The limiting structure 54 can be a protrusion 541 provided on the inner wall of one side or both sides of the opening 512, to interfere with the pipeline 30 to increase the friction, so as to realize the function of stabilizing the pipeline 30 and preventing the pipeline 30 from falling off.

[0102] Optionally, the limiting structure 54 can also be an elastic structure provided on both sides of the opening 512, such as a protrusion or a clamping structure made of an elastic material, to elastically clamp the pipeline 30 to stabilize the pipeline 30, so as to prevent the pipeline 30 from falling off. Of course, the limiting structure 54 can also be other structures capable of stabilizing the pipeline 30, which are not limited herein.

[0103] It should be noted that the position of the limiting structure 54 is not limited to the opening 512, but can also be provided at other positions, such as the inner wall of the receiving cavity 511, as long as it can interfere with the pipeline 30 to stabilize the pipeline 30.

[0104] In some embodiments, asFigure 31 and Figure 32 As shown in FIG. 5, the peristaltic pump 50 further comprises a support 55 and a buffer 56. The support 55 is connected to the cover 52 and is used to support the cover 52 when the cover 52 is rotated to open the accommodating cavity 511, so that the cover 52 can stay at a preset position. The buffer 56 acts on the support 55 and is used to compress the support 55 to provide elastic buffering when the cover 52 is rotated to open the accommodating cavity 511. In this embodiment, the setting of the support 55 and the buffer 56 makes the user pause when opening the cover 52, avoiding the cover 52 rotating too much, which protects the cover 52 during the opening process.

[0105] For example, as shown in FIG. 5, the preset position can be the position of the cover 52 when the cover 52 is perpendicular to the base 51, so that the cover 52 stays at the preset position through the support 55. Figure 28

[0106] Optionally, as shown in FIG. 5, the buffer 56 can be a spring, and the support 55 can be a support column. The base 51 is provided with a limiting groove 513 opposite to the support column. One end of the support column is connected to the cover 52, and the other end of the support column extends into the limiting groove 513. The spring is arranged in the limiting groove 513. The compression force generated by the compression of the spring can make the cover 52 pause when being opened or closed. When the user opens the cover 52, the spring will be compressed. At this time, the compression force generated by the compression of the spring can just pause the cover 52 during the opening process, so that the cover 52 can pause at the preset position. If there is no buffer 56, the user will rotate the cover 52 to the bottom when opening the cover 52, which will bring safety hazards to the opening process of the cover 52. Therefore, the setting of the buffer 56 not only ensures the safety of the cover 52 of the peristaltic pump 50 when being opened or closed, but also ensures the operation convenience of the user for the peristaltic pump 50. Figure 31 Figure 32 In some embodiments, as shown in FIG. 5, the peristaltic pump 50 further comprises a limiting mechanism 57. The limiting mechanism 57 is arranged on the base 51 and is used to limit the rotation range of the cover 52. The limiting mechanism 57 can be a limiting groove 514 arranged on the base 51. The limiting groove 514 is used to limit the rotation range of the cover 52. The limiting mechanism 57 can also be a limiting block 515 arranged on the base 51. The limiting block 515 is used to limit the rotation range of the cover 52.

[0107] In some embodiments, as shown in FIG. 5, the peristaltic pump 50 further comprises a limiting mechanism 57. The limiting mechanism 57 is arranged on the base 51 and is used to limit the rotation range of the cover 52. The limiting mechanism 57 can be a limiting groove 514 arranged on the base 51. The limiting groove 514 is used to limit the rotation range of the cover 52. The limiting mechanism 57 can also be a limiting block 515 arranged on the base 51. The limiting block 515 is used to limit the rotation range of the cover 52. Figure 33 Figure 34 ​​​As shown, the peristaltic pump 50 further comprises a fixing member 57 and a blocking member 58. The pump core seat 531 is provided with a fixing groove 5311. The fixing member 57 comprises a head portion 571 and an extending portion 572. The head portion 571 is configured to receive a fifth force to drive the extending portion 572 to pass through the fixing groove 5311 of the pump core seat 531. The blocking member 58 is arranged between the head portion 571 and the extending portion 572. The blocking member 58 is configured to abut against the head portion 571 when the extending portion 572 moves a preset distance in a direction of passing through the pump core seat 531, so as to limit the limit position of the extending portion 572. In the embodiment, the fixing member 57 can improve the structural stability of the pump core seat 531. The blocking member 58 can block the screwing of the fixing member 57, so as to prompt the user that the fixing member 57 has been screwed to the limit position, thereby ensuring the safety of the screwing of the fixing member 57.

[0108] Optionally, the fixing member 57 can be a bolt. In the peristaltic pump 50, the user can apply the fifth force to the head portion 571 of the bolt by using a tool, so as to screw the bolt into the corresponding thread of the pump core seat 531, thereby ensuring the structural stability of the pump core seat 531. The blocking member 58 can be a horizontally extended or bent extending sheet structure arranged below the head portion 571 of the bolt. The blocking member 58 can prompt the user that the bolt has been screwed to the limit position when the user screws the bolt, thereby avoiding damaging the bolt.

[0109] If the blocking member 58 is not arranged, the user cannot know when the bolt has been screwed to the head when the user screws the bolt to realize the bolt connection. In some cases, the user will continue to screw the bolt even if the bolt has been screwed to the head, thereby causing the damage of the bolt.

[0110] In the embodiment, the blocking member 58 is arranged below the head portion 571 of the bolt. When the bolt is screwed to the limit position, the head portion 571 of the bolt will touch the blocking member 58, so that the user knows that the bolt has been screwed to the limit position, thereby avoiding screwing the bolt again, so as to prevent the damage of the bolt in the screwing process. In this way, the bolt can be connected stably, and the physical damage of the bolt can be prevented.

[0111] For example, the blocking member 58 can be made of an elastic material. The blocking member 58 can protect the head portion 571 of the bolt by using the elasticity, thereby improving the physical safety of the bolt.

[0112] In some embodiments, as Figures 35-37As shown, the peristaltic pump 50 further comprises a handheld structure 59, the pump core seat 531 is provided with a mounting position 5312, and the handheld structure 59 is detachably connected to the mounting position 5312. The handheld structure 59 is used for receiving a sixth action force to drive the pump core seat 531 to rotate. In the embodiment, when it is needed to manually reset the pump head rotor 53, for example, when the peristaltic pump 50 stops running, because the peristaltic pump 50 is in a sudden power-off stop state, the pump head rotor 53 cannot automatically return to the original angle at the power-off stop moment. At this time, the handheld structure 59 is inserted into the mounting position 5312 of the pump core seat 531, so that the user can hold the handheld structure 59 and exert the sixth action force to drive the handheld structure 59 to rotate and drive the pump core seat 531 to rotate, so as to drive the pump head rotor 53 to rotate back to the original angle position, thereby improving the rotation safety and operation convenience of the pump head rotor 53 of the peristaltic pump 50.

[0113] Optionally, as shown in Figures 36-37 The handheld structure 59 comprises an insertion part 591 and a rocker 592. The edge of the pump core seat 531 is provided with a mounting groove for the insertion part 591 to extend into, so as to form the mounting position 5312 for detachable connection of the handheld structure 59. The insertion part 591 can be in interference fit with the inner wall of the mounting groove to be detachably connected to the mounting position 5312, or can be detachably installed through screws or other installation modes. When it is needed to manually reset the pump head rotor 53, the user can install the insertion part 591 into the containing groove 13 and hold the rocker 592 to drive the pump core seat 531 to rotate, so as to drive the pump head rotor 53 to rotate back to the original angle position.

[0114] In some embodiments, as shown in Figure 1 The blood purification device 100 further comprises a support 150 and a rotating wheel 160. The support 150 is installed on the shell 10 and is used for supporting the shell 10. The rotating wheel 160 is arranged at the bottom of the support 150 and is used for assisting the movement of the blood purification device 100. In the embodiment, the support 150 can support the shell 10. When the user pushes the shell 10, the support 150 can rotate with the rotating wheel 160, thereby improving the convenience.

[0115] For example, four rotating wheels 160 can be arranged to balance the force on the support 150 and facilitate the user to push. Of course, two, three or more rotating wheels 160 can be arranged to balance the force on the support 150 and enable the support 150 to move arbitrarily.

[0116] In the case of no contradiction, a person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples.

[0117] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A blood purification apparatus characterized by comprising: The blood purification device comprises: a housing having a front surface and a side surface adjacent to the front surface; a purification device installed in the housing, the purification device being used for purifying blood taken from a human body; a pipeline used for connecting the purification device and a blood vessel of the human body, the pipeline forming a blood circulation loop from the human body via the purification device to the human body; a clamping device installed on the front surface of the housing, the clamping device being used for clamping the pipeline and capable of controlling the pipeline to be turned on or turned off; a peristaltic pump installed on the front surface of the housing and connected to the pipeline, the peristaltic pump being used for driving blood in the pipeline to flow; a heating device installed on the side surface of the housing, the heating device being used for heating blood in the pipeline to a preset temperature so that the blood reaching the preset temperature returns to the human body through the pipeline; the clamping device comprises: a fixing assembly; a clamping arm comprising a first end and a second end arranged oppositely; an abutting piece connected to the second end, the second end being capable of moving relative to the fixing assembly between a first position and a second position to clamp or release the pipeline; a reset assembly provided on the fixing assembly and acting on the second end, the second end being used for receiving a first acting force to move from the first position to the second position, the reset assembly being used for providing a second acting force to the second end to drive the second end to move from the second position to the first position; the first end is rotationally connected to the fixing assembly through a rotating shaft, the reset assembly comprises an elastic piece and a transmission piece, one end of the elastic piece is connected to the transmission piece, the other end of the elastic piece is connected to the fixing assembly, the transmission piece is connected to the rotating shaft, when the second end receives the first acting force to move from the first position to the second position, the rotating shaft is driven to rotate, thereby the elastic piece is compressed through the transmission piece, the elastic piece is used for providing an elastic restoring force and driving the rotating shaft to rotate through the transmission piece to form the second acting force to the second end, thereby driving the second end to move from the second position to the first position; or the reset assembly comprises a first magnetic piece and a second magnetic piece, the fixing assembly is provided with a butt joint portion opposite to the second end, the first magnetic piece is arranged on the second end, the second magnetic piece is arranged on the butt joint portion, when the second end receives the first acting force to move from the first position to the second position, the first magnetic piece is driven to approach the second magnetic piece, the first magnetic piece and the second magnetic piece are configured to repel each other to generate the second acting force to the second end, thereby driving the second end to move from the second position to the first position.

2. The blood purification device according to claim 1, wherein the fixing assembly is installed on the front surface of the housing, the clamping arm and the fixing assembly enclose a limiting hole for the pipeline to pass through. The abutting piece extends into or away from the limiting hole to clamp or loosen the pipeline, the second end moves from the first position to the second position to drive the abutting piece away from the limiting hole, and the second end moves from the second position to the first position to drive the abutting piece to extend into the limiting hole.

3. The blood purification apparatus according to claim 1, wherein The heating device comprises a heating cavity for accommodating the pipeline, the heating device is rotationally connected with the shell and can rotate relative to the shell between a third position and a fourth position, the heating device is inclined toward the direction away from the side surface of the shell when in the third position to open the heating cavity so that the pipeline can be put into the heating cavity, and the heating device is close to the side surface of the shell when in the fourth position to close the heating cavity so that the blood in the pipeline can be heated in the heating cavity.

4. The blood purification apparatus according to claim 3, wherein The blood purification apparatus further comprises a first damping structure, the heating device is rotationally connected with the shell through the first damping structure, and the first damping structure is used to provide a first resistance so that the heating device can stay at any position between the third position and the fourth position; or, The blood purification apparatus further comprises a traction structure, the traction structure comprises a traction piece and a limiting sliding groove provided on the shell, the traction piece comprises opposite third and fourth ends, the third end is rotationally connected with the heating device, and the fourth end is slidingly connected with the limiting sliding groove; when the heating device rotates to the third position, the fourth end slides to the limit position of the limiting sliding groove so that the heating device can stay at the third position through the action of the traction piece.

5. The blood purification apparatus according to claim 3, wherein The heating device comprises a cover plate and a heating plate rotationally connected with the cover plate, the cover plate is rotationally connected with the shell and can rotate relative to the shell between a third position and a fourth position, and the heating plate is located between the cover plate and the side surface of the shell. The number of the heating plates is one, a heating cavity for accommodating the pipeline is formed between the heating plate and the cover plate, or the number of the heating plates is more than two, and a heating cavity for accommodating the pipeline is formed between the heating plate and the cover plate and between adjacent two heating plates.

6. The blood purification apparatus according to claim 5, wherein The blood purification apparatus further comprises a second damping structure, the heating plate is rotationally connected with the cover plate through the second damping structure, and the second damping structure is used to provide a second resistance so that the heating plate and the cover plate can rotate relative to each other and stay at any angle; and / or, The heating plate comprises, in sequence from the cover plate to the side surface of the shell, a heat transfer film piece, a heating film piece and a heat insulation film piece, the heating film piece is used to emit heat when powered, the side of the heat transfer film piece opposite to the heating film piece is used to abut against the pipeline to transfer heat to the blood in the pipeline for heating, and the heat insulation film piece is used to reflect the heat radiation of the heating film piece; and / or, The blood purification device further comprises a clamping structure, the clamping structure comprises a first clamping structure, a second clamping structure and an unlocking piece, the first clamping structure is arranged on the cover plate, the second clamping structure is arranged on the heating plate, the first clamping structure is used for clamping with the second clamping structure when the cover plate rotates to the fourth position, so as to realize the locking between the cover plate and the heating plate, and the unlocking piece is used for receiving a third acting force and acting on the first clamping structure, so as to drive the first clamping structure to be separated from the second clamping structure, so that the locking between the cover plate and the heating plate is released; and / or, The blood purification device further comprises an operating structure and a locking structure, the operating structure is rotationally connected to the cover plate and located on the side of the cover plate away from the shell, the locking structure comprises a clamping piece and a pushing piece, the shell is further provided with a clamping groove matched with the clamping piece, the pushing piece is connected to the operating structure and interferes with the clamping piece, the operating structure is used for receiving a fourth acting force to rotationally switch between a first state and a second state, when the operating structure rotates to the first state, the pushing piece can drive the clamping piece to clamp into the clamping groove, so as to realize the locking between the heating device and the shell, when the operating structure rotates to the second state, the pushing piece can drive the clamping piece to be separated from the clamping groove, so that the locking between the heating device and the shell is released.

7. The blood purification apparatus of claim 1, wherein, The peristaltic pump comprises: a base provided with a containing cavity for containing the pipeline; a flip cover rotationally connected with the base, the flip cover being used for rotating to open or close the containing cavity; a pump head rotor comprising a pump core seat and a squeezing roller, the pump core seat being rotationally installed in the containing cavity, and the squeezing roller being rotationally installed in the pump core seat; a driving assembly, the driving assembly being used for driving the pump core seat to rotate, so as to drive the squeezing roller to alternately squeeze and release the pipeline to realize pumping blood.

8. The blood purification apparatus as claimed in claim 7, wherein The peristaltic pump further comprises a limiting structure arranged on the base, the limiting structure being used for stabilizing the pipeline to prevent the pipeline from falling off when the containing cavity is opened; and / or, The peristaltic pump further comprises a supporting piece and a buffer piece, the supporting piece being connected with the flip cover, the supporting piece being used for supporting the flip cover when the flip cover rotates to open the containing cavity, so that the flip cover can stay at a preset position, and the buffer piece acting on the supporting piece, the buffer piece being used for compressing the supporting piece to provide elastic buffering when the flip cover rotates to open the containing cavity; and / or, The peristaltic pump further comprises a fixing piece and a blocking piece, the pump core seat is provided with a fixing groove, the fixing piece comprises a head portion and a penetrating portion, the head portion being used for receiving a fifth acting force to drive the penetrating portion to penetrate the fixing groove of the pump core seat, and the blocking piece being arranged between the head portion and the penetrating portion, the blocking piece being used for abutting against the head portion when the penetrating portion moves a preset distance in the direction of penetrating the pump core seat, so as to limit the limit position of the movement of the penetrating portion; and / or, The peristaltic pump further comprises a handheld structure, the pump core seat is provided with a mounting position, the handheld structure is detachably connected to the mounting position, and the handheld structure is used for receiving a sixth acting force to drive the pump core seat to rotate.

9. The blood purification apparatus according to any one of claims 1 to 8, wherein The blood purification apparatus further comprises: a support installed on the shell, the support being used for supporting the shell; a rotating wheel arranged at the bottom of the support to assist the blood purification apparatus in moving.

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