Ultrafiltration device for treating heart failure patient

Abstract

The invention belongs to the field of cardiovascular medicine and blood purification, and provides an ultrafiltration device for heart failure patient treatment, the ultrafiltration device comprises an ultrafiltration device, the top of the ultrafiltration device is provided with a sealing assembly, the sealing assembly comprises a mounting ring and a cover top, and the inner wall of the ultrafiltration device is internally provided with a heating assembly. A blood inlet assembly is arranged at the top of the cover top, a blood outlet assembly is arranged at the bottom of the ultrafilter device, the blood inlet assembly comprises a blood inlet pipe, the blood outlet assembly comprises a blood outlet pipe, guide pipes are arranged in the blood inlet pipe and the blood outlet pipe, and two mounting assemblies are connected to the outer surface of the ultrafilter device in a sleeving mode. The top of the ultra-filter device can be connected in a sealed mode, errhysis during blood ultra-filtration is avoided, the spiral flow channel is formed in the inner wall of the blood inlet pipe, the spiral flow channel can induce blood to flow in the rotating direction, the edge retention area is reduced, the platelet deposition risk is reduced, and the ultra-filter device and the catheter can be installed more conveniently.

Description

Technical Field

[0001] The invention belongs to the field of cardiovascular medicine and blood purification, and in particular to an ultrafiltration device for treating heart failure patients. Background Art

[0002] The heart failure treatment ultrafiltration machine is a medical device used to treat heart failure patients. It uses ultrafiltration technology to filter out excess fluid and salt from the patient's body, thereby reducing the burden on the heart and alleviating heart failure symptoms.

[0003] Heart failure is a heart disease in which the patient's heart function declines, making it unable to expel excess fluid from the body. This leads to fluid retention, causing symptoms such as edema and difficulty breathing. Ultrafiltration machines achieve therapeutic effects by introducing the patient's blood into the machine, filtering out excess fluid and salt using an ultrafiltration membrane, and then returning the filtered blood to the patient.

[0004] For example, in an ultrafiltration machine related to the treatment of heart failure with the publication number: CN116549761A, many hoses will be connected to the ultrafiltration component during use. These hoses are prone to knotting and entanglement during use, affecting the use of the ultrafiltration component. Therefore, this application provides a fixing component, which supports multiple sliders through slide rails, so that the sliders move on the slide rails, and the hoses are clamped by clamps. Specifically, the hoses are fixed by left and right clamps, and then the first spring provides a clamping force, and the two rotating rollers contact the hose to facilitate the hose to slide between the left clamp and the right clamp. In order to avoid knotting at the bottom of the hose, a magnet block is also provided. After clamping by the left and right clamps, the magnet block is slid downward and close to the magnetic guide rail to limit the magnet block, thereby conveniently fixing multiple hoses, not easily entangled and knotted, making it more convenient to use.

[0005] However, although the above application can fix multiple hoses and is not easy to tangle and knot, making it more convenient to use, the connection between the filter and the pipeline is relatively cumbersome, the installation of the filter is not convenient enough, and the ultrafiltration membrane in the filter cannot be inspected and replaced.

[0006] Therefore, those skilled in the art have proposed an ultrafiltration device for treating heart failure patients to solve the problems raised in the background art. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides an ultrafiltration device for treating heart failure patients to solve the problems in the prior art.

[0008] An ultrafiltration device for treating heart failure patients includes an ultrafiltration device, a sealing assembly is provided on the top of the ultrafiltration device, the sealing assembly includes a mounting ring and a cover, a heating assembly is provided inside the inner wall of the ultrafiltration device, a blood inlet assembly is provided on the top of the cover, and a bleeding assembly is provided at the bottom of the ultrafiltration device, the blood inlet assembly includes an inlet blood vessel, the bleeding assembly includes an outlet blood vessel, catheters are provided inside the inlet and outlet blood vessels, a plurality of clamping blocks are provided on the outside of the bottom of each catheter, and the internal structures of the outlet and inlet blood vessels are the same, and two mounting assemblies are sleeved on the outer surface of the ultrafiltration device.

[0009] Preferably, a sealing gasket is provided on the top of the mounting ring, and another sealing gasket is provided on the bottom of the cover top, the two sealing gaskets are in contact, and the top surface of the mounting ring and the surface of the sealing gasket located on its top are provided with a plurality of fixing holes, and each group of the fixing holes are connected to each other, and the surfaces of the sealing gasket on the cover top and the bottom of the cover top are provided with a plurality of mounting holes, each of the mounting holes corresponds to each of the fixing holes, and a fixing bolt is provided inside each of the mounting holes, and the fixing bolt passes through the mounting hole and is threadedly connected to the fixing hole.

[0010] Preferably, a second ring plate is provided above the inside of the blood inlet, and a first ring plate is provided below the second ring plate. The first ring plate and the second ring plate are both fixedly connected to the inner side of the blood inlet, and a plurality of snap-in grooves are provided on the surface of the second ring plate. The number, shape and size of the snap-in grooves match those of the snap-in blocks.

[0011] Preferably, an impeller is provided below the first ring plate, and rotating shafts are provided at both ends of the impeller. The impeller is rotatably connected to the inner wall of the blood inlet via the rotating shaft.

[0012] Preferably, a limiting ring is fixedly sleeved on the outer wall surface of the blood inlet tube, and a spiral flow channel is opened on the inner wall of the blood inlet tube below the impeller.

[0013] Preferably, the heating assembly includes a mounting plate, a water inlet pipe, and a heating water chamber, the mounting plate is located at the top of the cover, and the mounting plate is arranged in a 7 shape, the bottom of the mounting plate is fixedly connected to the top of the cover, the heating water chamber is located inside the inner wall of the ultrafiltration device, one end of the water inlet pipe is located inside the heating water chamber, and the other end of the water inlet pipe passes through the heating water chamber and the cover, and extends to the outside of the cover.

[0014] Preferably, a driving motor is provided at the bottom end of the top of the mounting plate, a first flange is provided at the top of the output shaft of the driving motor, a rotating rod is provided inside the heating water chamber, one end of the rotating rod passes through the heating water chamber and the top of the cover, and extends to the outside of the top of the cover, a second flange is provided at the top of one end of the rotating rod located outside the top of the cover, and the second flange is flange-connected to the first flange.

[0015] Preferably, a mounting rod is provided at one end of the rotating rod located inside the heating water chamber, and a plurality of spoiler rods are fixedly connected to the outer wall of the mounting rod. A heater is provided inside the heating water chamber, and the heater is equipped with a temperature controller.

[0016] Preferably, the mounting assembly includes a first curved plate and a second curved plate, angle plates are provided on the sides of the first curved plate and the second curved plate, the first curved plate and the second curved plate are connected with bolts through the angle plates, a connecting rod is provided on the outer side of the first curved plate, connecting plates are provided on both sides of the end of the connecting rod away from the first curved plate, and a sliding groove is provided on the side of the two connecting plates away from the connecting rod.

[0017] Preferably, a sliding rod is provided inside the two sliding grooves, a clamp is slidably sleeved on the surface of the two sliding rods, a spring is sleeved on the surface of the sliding rod between the clamp and the sliding groove, a horizontal fixing groove and a vertical fixing groove are provided on the opposite sides of the two clamps, a fixing block is provided on the top and bottom of the two clamps, and a tightening bolt is provided between the fixing blocks on the top of the two clamps.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention makes the sealing gasket at the bottom of the cover contact with the sealing gasket at the top of the mounting ring, and passes the fixing bolts in the mounting hole through the cover and is threadedly connected to the fixing hole at the top of the mounting ring, thereby sealing the top of the ultrafiltration device to avoid bleeding during blood ultrafiltration. The heating water chamber can be filled with water through the water inlet pipe to fill the heating water chamber with aqueous solution. Then, the first flange at the bottom of the driving motor is flange-connected with the second flange at the top of the rotating rod, so that the driving motor drives the mounting rod and the spoiler rod to rotate. The water inside the heating water chamber is disturbed, and the water is heated by the heater, and the water temperature is controlled between 30℃-35℃ by the thermostat. In the process of disturbing the water by the disturbing rod, the water temperature in the heating water chamber is made uniform, thereby heating the blood in the ultrafiltration device to avoid increased viscosity and coagulation risk caused by low blood temperature. The water temperature of 30℃-35℃ can effectively maintain blood fluidity and avoid protein denaturation due to excessively high temperature. At the same time, the blood at 30℃-35℃ makes the patient feel more comfortable when it flows back into the patient's body.

[0020] 2. The present invention matches the clamping block at the bottom of the catheter with the clamping groove inside the second ring plate on the inner side of the top of the inlet blood vessel, so that the clamping block passes through the clamping groove and contacts the surface of the first ring plate. At this time, the catheter is rotated to drive the clamping block to rotate between the first ring plate and the second ring plate, thereby fixing the clamping block to prevent the catheter from falling off and making the connection of the catheter more convenient. Similarly, the catheter can be connected to the outlet blood vessel by cooperating with the clamping block and the clamping groove. When blood enters the inlet blood vessel from the catheter, the blood impacts the impeller, causing the impeller to rotate under the impact force of the blood, thereby reducing the impact force of the blood, avoiding excessive damage to the filter membrane and other structures in the blood filter by the impact force of the blood. A spiral flow channel is provided on the inner wall of the inlet blood vessel, which can induce the blood to flow in a spiral direction, reduce the edge retention area, and reduce the risk of platelet deposition.

[0021] 3. The present invention clamps the first curved plate and the second curved plate on the surface of the ultrafiltration device, and then fixes the first curved plate and the second curved plate on the surface of the ultrafiltration device through bolts and angle plates, and then contacts the clamping plate with the external fixing part, and adapts to the shape of the external fixing part through the horizontal fixing groove and the vertical fixing groove on the inner side of the clamping plate. According to the size of the external device, the clamping plate can squeeze the spring and slide on the surface of the slide rod to adapt to external fixing parts of different sizes. When the clamping plate adapts to the size of the external fixing part, the tightening bolts are passed through the fixing block to fix the two clamping plates, and then the ultrafiltration device is installed as a whole, making the installation of the ultrafiltration device more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 Schematic diagram of the structure of the sealing assembly of the present invention;

[0024] Figure 3 Schematic diagram of the structure of the blood inlet component of the present invention;

[0025] Figure 4 This is a cross-sectional view of the structure of the blood inlet component of the present invention;

[0026] Figure 5 Schematic diagram of the structure of the heating component of the present invention;

[0027] Figure 6 Schematic diagram of the structure of the spoiler rod in the present invention;

[0028] Figure 7 It is a structural diagram of the installation components in the present invention.

[0029] In the picture:

[0030] 1. Ultrafiltration device; 2. Sealing assembly; 201. Mounting ring; 202. Sealing gasket; 203. Cover; 204. Fixing hole; 205. Mounting hole; 206. Fixing bolt; 3. Blood inlet assembly; 301. Blood inlet tube; 302. Stop ring; 303. Catheter; 304. Snap-fit ​​block; 305. First ring plate; 306. Second ring plate; 307. Snap-fit ​​groove; 308. Impeller; 309. Spiral flow channel; 4. Bleeding assembly; 5. Heating assembly; 501. Water inlet pipe; 502. Mounting plate; 50 3. Driving motor; 504. First flange; 505. Heating water chamber; 506. Second flange; 507. Rotating rod; 508. Mounting rod; 509. Spoiler rod; 510. Heater; 6. Mounting assembly; 601. First curved plate; 602. Second curved plate; 603. Angle plate; 604. Connecting rod; 605. Connecting plate; 606. Sliding rod; 607. Spring; 608. Clamp; 609. Fixing block; 610. Horizontal fixing groove; 611. Vertical fixing groove; 612. Tightening bolt. DETAILED DESCRIPTION

[0031] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0032] As attached Figure 1 To the attached Figure 7 As shown:

[0033] Embodiment 1: The present invention provides an ultrafiltration device for treating patients with heart failure, comprising an ultrafiltration device 1, a sealing assembly 2 is provided on the top of the ultrafiltration device 1, the sealing assembly 2 includes a mounting ring 201 and a cover top 203, a heating assembly 5 is provided inside the inner wall of the ultrafiltration device 1, a blood inlet assembly 3 is provided on the top of the cover top 203, and a bleeding assembly 4 is provided at the bottom of the ultrafiltration device 1, the blood inlet assembly 3 includes an inlet blood vessel 301, the bleeding assembly 4 includes an outlet blood vessel, catheters 303 are provided inside the inlet blood vessel 301 and the outlet blood vessel, and several clamping blocks 304 are provided on the outside of the bottom of each catheter 303, and the internal structures of the outlet blood vessel and the inlet blood vessel 301 are the same.

[0034] Furthermore, a sealing gasket 202 is provided on the top of the mounting ring 201, and another sealing gasket 202 is provided on the bottom of the cover top 203. The two sealing gaskets 202 are in contact. A plurality of fixing holes 204 are provided on the top surface of the mounting ring 201 and the surface of the sealing gasket 202 located on the top thereof. Each group of fixing holes 204 are interconnected. A plurality of mounting holes 205 are provided on the surface of the sealing gasket 202 on the cover top 203 and the bottom of the cover top 203. Each mounting hole 205 corresponds to each fixing hole 204, and a fixing bolt 206 is provided inside each mounting hole 205. The fixing bolt 206 passes through the mounting hole 205 and is threadedly connected to the fixing hole 204, and the blood inlet 3 is connected to the blood inlet 3. 01 is provided with a second ring plate 306 above the interior, and a first ring plate 305 is provided below the second ring plate 306. The first ring plate 305 and the second ring plate 306 are both fixedly connected to the inner side of the blood inlet 301. A plurality of clamping grooves 307 are provided on the surface of the second ring plate 306. The number, shape and size of the clamping grooves 307 match those of the clamping block 304. An impeller 308 is provided below the first ring plate 305. A rotating shaft is provided at both ends of the impeller 308. The impeller 308 is rotatably connected to the inner wall of the blood inlet 301 through the rotating shaft. A limiting ring 302 is fixedly sleeved on the outer wall surface of the blood inlet 301. A spiral flow channel 309 is provided on the inner wall of the blood inlet 301 below the impeller 308.

[0035] The heating assembly 5 includes a mounting plate 502, a water inlet pipe 501, and a heating water chamber 505. The mounting plate 502 is located on the top of the cover 203, and the mounting plate 502 is arranged in a 7-shape. The bottom of the mounting plate 502 is fixedly connected to the top of the cover 203. The heating water chamber 505 is located inside the inner wall of the ultrafiltration device 1. One end of the water inlet pipe 501 is located inside the heating water chamber 505. The other end of the water inlet pipe 501 passes through the heating water chamber 505 and the cover 203 and extends to the outside of the cover 203. A driving motor 503 is provided at the bottom end of the top of the mounting plate 502, and a first flange is provided on the top of the output shaft of the driving motor 503. The plate 504 and the heating water chamber 505 are provided with a rotating rod 507, one end of the rotating rod 507 passes through the heating water chamber 505 and the cover top 203, and extends to the outside of the cover top 203. A second flange 506 is provided on the top of the end of the rotating rod 507 located outside the cover top 203. The second flange 506 is flange-connected to the first flange 504. A mounting rod 508 is provided at one end of the rotating rod 507 located inside the heating water chamber 505. Several spoiler rods 509 are fixedly connected to the outer wall of the mounting rod 508. A heater 510 is provided inside the heating water chamber 505, and the heater 510 is equipped with a temperature controller.

[0036] As can be seen from the above, by making the sealing gasket 202 at the bottom of the cover top 203 contact with the sealing gasket 202 at the top of the mounting ring 201, and passing the fixing bolt 206 in the mounting hole 205 through the cover top 203 and threading it into the fixing hole 204 at the top of the mounting ring 201, the top of the ultrafiltration device 1 is sealed and connected to avoid bleeding during blood ultrafiltration, and water can be injected into the heating water chamber 505 through the water inlet pipe 501 to fill the heating water chamber 505 with aqueous solution, and then the first flange 504 at the bottom of the driving motor 503 is connected to the top of the rotating rod 507. The second flange 506 is flange-connected, so that the driving motor 503 drives the mounting rod 508 and the spoiler rod 509 to rotate, thereby disturbing the water inside the heating water chamber 505, and heating the water through the heater 510, and controlling the water temperature between 30°C and 35°C through the thermostat, so that the spoiler rod 509 makes the water temperature in the heating water chamber 505 uniform during the process of disturbing the water, thereby heating the blood in the ultrafiltration device 1, avoiding the increase in viscosity and the risk of coagulation caused by the low blood temperature, and the water temperature of 30°C to 35°C can effectively maintain the fluidity of the blood and avoid the risk of blood coagulation caused by the temperature. The blood at 30℃-35℃ will make the patient feel more comfortable when it flows back into the patient's body. The clamping block 304 at the bottom of the catheter 303 can be matched with the clamping groove 307 inside the second ring plate 306 on the inner side of the top of the blood inlet 301, so that the clamping block 304 passes through the clamping groove 307 and contacts the surface of the first ring plate 305. At this time, the catheter 303 is rotated to drive the clamping block 304 to rotate between the first ring plate 305 and the second ring plate 306, thereby fixing the clamping block 304 to prevent the catheter 303 from falling off and making the catheter The connection of tube 303 is more convenient. Similarly, the catheter 303 can be connected to the outflow blood vessel by cooperating with the clamping block 304 and the clamping groove 307. When blood enters the inflow blood vessel 301 from the catheter 303, the blood impacts the impeller 308, causing the impeller 308 to rotate under the impact force of the blood, thereby reducing the impact force of the blood, avoiding excessive impact force of the blood to damage the filter membrane and other structures in the blood filter, and a spiral flow channel 309 is opened on the inner wall of the inflow blood vessel 301. The spiral flow channel 309 can induce blood to flow in a spiral direction, reduce the edge retention area, and reduce the risk of platelet deposition.

[0037] Example 2: This example is basically the same as the previous example, except that two mounting assemblies 6 are sleeved on the outer surface of the ultrafiltration device 1. The mounting assembly 6 includes a first curved plate 601 and a second curved plate 602. The sides of the first curved plate 601 and the second curved plate 602 are both provided with angle plates 603. The first curved plate 601 and the second curved plate 602 are connected to the bolts through the angle plates 603. A connecting rod 604 is provided on the outer side of the first curved plate 601. Connecting plates are provided on both sides of the end of the connecting rod 604 away from the first curved plate 601. 605, a sliding groove is provided on the side of the two connecting plates 605 away from the connecting rod 604, and a sliding rod 606 is provided inside the two sliding grooves. A clamping plate 608 is slidably sleeved on the surface of the two sliding rods 606, and a spring 607 is sleeved on the surface of the sliding rod 606 between the clamping plate 608 and the sliding groove. A horizontal fixing groove 610 and a vertical fixing groove 611 are provided on the side opposite to each other of the two clamping plates 608, and a fixing block 609 is provided on the top and bottom of the two clamping plates 608. A tightening bolt 612 is provided between the fixing blocks 609 on the top of the two clamping plates 608.

[0038] As can be seen from the above, the first curved plate 601 and the second curved plate 602 are clamped on the surface of the ultrafiltration device 1, and then the first curved plate 601 and the second curved plate 602 are fixed to the surface of the ultrafiltration device 1 by bolts and angle plates 603, and then the splint 608 is contacted with the external fixing part, and the horizontal fixing groove 610 and the vertical fixing groove 611 on the inner side of the splint 608 are adapted to the shape of the external fixing part, and according to the size of the external device, the splint 608 can squeeze the spring 607 and slide on the surface of the slide rod 606, so as to adapt to external fixing parts of different sizes. When the splint 608 adapts to the size of the external fixing part, the tightening bolt 612 is passed through the fixing block 609 to fix the two splints 608, and then the ultrafiltration device 1 is installed as a whole, making the installation of the ultrafiltration device 1 more convenient.

[0039] Working principle: first, the sealing gasket 202 at the bottom of the cover top 203 is brought into contact with the sealing gasket 202 at the top of the mounting ring 201, and the fixing bolt 206 in the mounting hole 205 passes through the cover top 203 and is threadedly connected to the fixing hole 204 at the top of the mounting ring 201, thereby sealing the top of the ultrafiltration device 1 to prevent bleeding during blood ultrafiltration. Then, the clamping block 304 at the bottom of the catheter 303 is matched with the clamping groove 307 inside the second ring plate 306 on the inner side of the top of the blood inlet 301, so that the clamping block 304 passes through the clamping groove 307 and contacts the surface of the first ring plate 305. At this time, the catheter 303 is rotated, so that the catheter 303 drives the clamping block 304 to rotate between the first ring plate 305 and the second ring plate 306, thereby fixing the clamping block 304 to prevent the catheter 303 from falling off and making the connection of the catheter 303 more convenient. Similarly, the catheter 303 can be connected to the outlet blood vessel by cooperating with the clamping block 304 and the clamping groove 307, and then the first curved plate 601 and the second curved plate 602 are clamped on the surface of the ultrafiltration device 1, and then the first curved plate 601 and the second curved plate 602 are fixed to the surface of the ultrafiltration device 1 by bolts and angle plates 603, and then the splint 608 is contacted with the external fixing part, and the horizontal fixing groove 610 and the vertical fixing groove 611 on the inner side of the splint 608 are adapted to the shape of the external fixing part, and according to the size of the external device, the splint 608 can squeeze the spring 607 and slide on the surface of the slide rod 606, so as to adapt to external fixing parts of different sizes. When the splint 608 adapts to the size of the external fixing part, the bolt 612 is tightened through the fixing block 609 to fix the two splints 608, and then the ultrafiltration device 1 is installed as a whole;

[0040] After the installation is completed, water is injected into the heating water chamber 505 through the water inlet pipe 501 to fill the heating water chamber 505 with aqueous solution, and then the first flange 504 at the bottom of the driving motor 503 is flange-connected with the second flange 506 at the top of the rotating rod 507, so that the driving motor 503 drives the installation rod 508 and the spoiler rod 509 to rotate, thereby disturbing the water in the heating water chamber 505, and heating the water through the heater 510, and controlling the water temperature between 30°C and 35°C through the thermostat, so that the spoiler rod 509 makes the water temperature in the heating water chamber 505 uniform during the process of disturbing the water, thereby heating the blood in the ultrafiltration device 1 to prevent the blood temperature from being too high. Low temperature leads to increased viscosity and coagulation risk, and the water temperature of 30℃-35℃ can effectively maintain blood fluidity and avoid protein denaturation due to excessive temperature. At the same time, the blood at 30℃-35℃ makes the patient feel more comfortable when it flows back into the patient's body. When the blood enters the inlet blood vessel 301 from the catheter 303, the blood impacts the impeller 308, causing the impeller 308 to rotate under the impact force of the blood, thereby reducing the impact force of the blood, avoiding excessive impact force of the blood to damage the filter membrane and other structures in the blood filter, and a spiral flow channel 309 is opened on the inner wall of the inlet blood vessel 301. The spiral flow channel 309 can induce the blood to produce a spiral flow, reduce the edge retention area, and reduce the risk of platelet deposition.

[0041] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Any changes, modifications, replacements and variations of the above embodiments by ordinary technicians in this field within the scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ultrafiltration device for treating heart failure patients, characterized by: The invention comprises an ultrafiltration device (1), wherein a sealing assembly (2) is provided on the top of the ultrafiltration device (1), wherein the sealing assembly (2) comprises a mounting ring (201) and a cover (203), wherein a heating assembly (5) is provided inside the inner wall of the ultrafiltration device (1), wherein a blood inlet assembly (3) is provided on the top of the cover (203), wherein a bleeding assembly (4) is provided at the bottom of the ultrafiltration device (1), wherein the blood inlet assembly (3) comprises an inlet blood vessel (301), wherein the bleeding assembly (4) comprises an outlet blood vessel, wherein the inlet blood vessel (301) and the outlet blood vessel are both provided with a conduit (303), wherein the bottom outer side of each conduit (303) is provided with a plurality of clamping blocks (304), and wherein the outlet blood vessel and the inlet blood vessel (301) have the same internal structure, and wherein two mounting assemblies (6) are sleeved on the outer surface of the ultrafiltration device (1).

2. An ultrafiltration device for treating heart failure patients according to claim 1, characterized in that: A sealing gasket (202) is provided on the top of the mounting ring (201), and another sealing gasket (202) is provided on the bottom of the cover top (203). The two sealing gaskets (202) are in contact with each other. The top surface of the mounting ring (201) and the surface of the sealing gasket (202) located on the top thereof are both provided with a plurality of fixing holes (204). Each group of the fixing holes (204) are interconnected. The surface of the sealing gasket (202) at the bottom of the cover top (203) and the cover top (203) are both provided with a plurality of mounting holes (205). Each mounting hole (205) corresponds to each fixing hole (204), and a fixing bolt (206) is provided inside each mounting hole (205). The fixing bolt (206) passes through the mounting hole (205) and is threadedly connected to the fixing hole (204).

3. The ultrafiltration device for treating heart failure patients according to claim 1, characterized in that: A second ring plate (306) is provided above the interior of the blood inlet (301), and a first ring plate (305) is provided below the second ring plate (306). The first ring plate (305) and the second ring plate (306) are both fixedly connected to the inner side of the blood inlet (301). A plurality of clamping grooves (307) are provided on the surface of the second ring plate (306), and the number, shape and size of the clamping grooves (307) match those of the clamping block (304).

4. An ultrafiltration device for treating heart failure patients according to claim 3, characterized in that: An impeller (308) is provided below the first ring plate (305), and rotating shafts are provided at both ends of the impeller (308). The impeller (308) is rotatably connected to the inner wall of the blood inlet (301) via the rotating shafts.

5. An ultrafiltration device for treating heart failure patients according to claim 4, characterized in that: A limiting ring (302) is fixedly sleeved on the outer wall surface of the blood inlet tube (301), and a spiral flow channel (309) is opened on the inner wall of the blood inlet tube (301) below the impeller (308).

6. The ultrafiltration device for treating heart failure patients according to claim 1, characterized in that: The heating assembly (5) comprises a mounting plate (502), a water inlet pipe (501) and a heating water chamber (505); the mounting plate (502) is located on the top of the cover (203), and the mounting plate (502) is arranged in a 7-shape; the bottom of the mounting plate (502) is fixedly connected to the top of the cover (203); the heating water chamber (505) is located inside the inner wall of the ultrafiltration device (1); one end of the water inlet pipe (501) is located inside the heating water chamber (505); the other end of the water inlet pipe (501) passes through the heating water chamber (505) and the cover (203), and extends to the outside of the cover (203).

7. An ultrafiltration device for treating heart failure patients according to claim 6, characterized in that: A driving motor (503) is provided at the top and bottom ends of the mounting plate (502), a first flange (504) is provided at the top of the output shaft of the driving motor (503), a rotating rod (507) is provided inside the heating water chamber (505), one end of the rotating rod (507) passes through the heating water chamber (505) and the cover top (203), and extends to the outside of the cover top (203), a second flange (506) is provided at the top of one end of the rotating rod (507) located outside the cover top (203), and the second flange (506) is flange-connected to the first flange (504).

8. An ultrafiltration device for treating heart failure patients according to claim 7, characterized in that: A mounting rod (508) is provided at one end of the rotating rod (507) located inside the heating water chamber (505), and a plurality of spoiler rods (509) are fixedly connected to the outer wall of the mounting rod (508). A heater (510) is provided inside the heating water chamber (505), and the heater (510) is equipped with a temperature controller.

9. The ultrafiltration device for treating heart failure patients according to claim 1, characterized in that: The mounting assembly (6) includes a first curved plate (601) and a second curved plate (602), the sides of the first curved plate (601) and the second curved plate (602) are both provided with angle plates (603), the first curved plate (601) and the second curved plate (602) are connected to bolts via the angle plates (603), a connecting rod (604) is provided on the outer side of the first curved plate (601), connecting plates (605) are provided on both sides of an end of the connecting rod (604) away from the first curved plate (601), and a sliding groove is provided on the side of the two connecting plates (605) away from the connecting rod (604).

10. An ultrafiltration device for treating heart failure patients according to claim 9, characterized in that: A sliding rod (606) is provided inside the two sliding grooves, and a clamping plate (608) is slidably sleeved on the surface of the two sliding rods (606). A spring (607) is sleeved on the surface of the sliding rod (606) between the clamping plate (608) and the sliding groove. A horizontal fixing groove (610) and a vertical fixing groove (611) are provided on the opposite sides of the two clamping plates (608). A fixing block (609) is provided on the top and bottom of the two clamping plates (608), and a tightening bolt (612) is provided between the fixing blocks (609) at the top of the two clamping plates (608).

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