Continuous blood purification ultrafiltration device

Abstract

The invention relates to the technical field of blood ultrafiltration, in particular to a continuous blood purification ultrafiltration device which comprises an ultrafiltration main machine, a control screen, a monitor, a blood inlet pipe and a blood pump are arranged on the end face of the ultrafiltration main machine, the control screen is located above the end face of the ultrafiltration main machine, the monitor is arranged below the control screen, the blood inlet pipe is arranged between the monitor and the control screen, and the blood pump is arranged in the blood inlet pipe. A blood pump is arranged on the right side of the blood inlet pipe; the blood pump penetrates through the end face of the ultrafiltration host; one end of the blood inlet tube penetrates through the end face of the ultrafiltration host, and the other end of the blood inlet tube is wound on the blood pump and is hermetically and rotatably connected to the top of the ultrafiltration mechanism; when ultrafiltration is carried out, blood is pumped into a filtering pipe through a blood pump, a driving motor is started to enable the filtering pipe to rotate, a part of space needs to be reserved in the filtering pipe so that the blood can rotate under the action of centrifugal force, and therefore the blood in the filtering pipe can be in a vortex shape, water is separated into a waste liquid pipe through the centrifugal force, and ultrafiltration is carried out. Therefore, the blood treatment efficiency can be increased.

Description

Technical Field

[0001] The invention relates to the technical field of blood ultrafiltration, in particular to a continuous blood purification ultrafiltration device. Background Art

[0002] Blood ultrafiltration is a treatment method for edema and other conditions caused by excess water in the blood or tissues. The basic principle of blood ultrafiltration is to use the characteristics of a semipermeable membrane to separate water and some toxins from the blood through volume control or pressure control, thereby achieving the purpose of removing excess fluid and some toxins from the body. During blood ultrafiltration, the blood is filtered through a dialysis machine, and no dialysate or replacement fluid is required during the process. Blood reperfusion is used during blood ultrafiltration. After the water in the blood is removed, the water in the cells or intercellular spaces in the body will slowly flow into the blood vessels to compensate for the lost water and maintain the stability of blood volume.

[0003] Considering that ultrafiltration is to separate water from blood, water and blood are separated by the pressure difference on both sides of the semipermeable membrane during separation. If the processing speed needs to be increased, the pressure difference on both sides of the semipermeable membrane needs to be increased. At the same time, after the processing speed is increased, the quality of separation of blood and water may decrease, and the water in the blood may not be fully separated. In the prior art, the filter tube cannot be reused due to contact with blood. Even if it is reused, it needs to go through a large number of cleaning and disinfection steps to prevent cross infection or virus transmission through the blood, which increases the cost of use. Summary of the invention

[0004] The object of the present invention is to provide a continuous blood purification ultrafiltration device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a continuous blood purification ultrafiltration device, comprising an ultrafiltration host, The end surface of the ultrafiltration host is provided with a control screen, a monitor, an inlet blood vessel and a blood pump, the control screen is located above the end surface of the ultrafiltration host, the monitor is provided below the control screen, an inlet blood vessel is provided between the monitor and the control screen, and a blood pump is provided on the right side of the inlet blood vessel; the blood pump runs through the end surface of the ultrafiltration host; One end of the blood inlet penetrates the end surface of the ultrafiltration host, and the other end of the blood inlet is wound around the blood pump and is sealed and rotatably connected to the top of the ultrafiltration mechanism; The ultrafiltration mechanism is fixed inside the ultrafiltration host, the bottom of the ultrafiltration mechanism is sealed and rotatably connected to one end of the blood outlet, the other end of the blood outlet penetrates the end face of the ultrafiltration host, and the part of the blood outlet penetrating the end face of the ultrafiltration host is located on the right side of the monitor; The blood pump is rotatably connected to the ultrafiltration mechanism, and a plurality of protrusions are arranged on the circumferential surface of the blood pump located inside the ultrafiltration mechanism, and the protrusions are in contact with the surface of the inlet blood vessel; The interior of the ultrafiltration host is divided into an equipment room and a storage room by a partition plate, and the equipment room is located above the storage room; The ultrafiltration mechanism comprises a support plate, the bottom of which is fixedly connected to the partition plate by a support foot, and the bottom of the support plate is fixedly connected to a driving motor; the output shaft of the driving motor passes through the support plate from the bottom and is fixedly connected to the first gear; the first gear meshes with the second gear, and the second gear is rotatably connected to the top of the support plate, and the center of the top surface of the second gear is fixedly connected to a filtering tube, and the center of the top of the filtering tube is sealed and rotatably connected to the inlet blood vessel, the outlet blood vessel passes through the support plate and the second gear, and the outlet blood vessel is sealed and rotatably connected to the bottom center of the filtering tube; the tube surface of the filtering tube is a semipermeable membrane, and the semipermeable membrane is elastic; the outer wall of the top of the filtering tube is provided with a waste liquid pipe, and the filtering tube is clamped with the waste liquid pipe; the waste liquid pipe is fixedly connected to the top of the second gear, and an adjusting mechanism is slidably connected inside the waste liquid pipe, and the adjusting mechanism is fixedly connected to the semipermeable membrane of the filtering tube, and the adjusting mechanism is used to adjust the shape of the semipermeable membrane so as to be suitable for different usage scenarios.

[0006] Furthermore, the adjustment mechanism includes multiple groups of first adjustment units and multiple groups of second adjustment units, the first adjustment units and the second adjustment units slide inside the waste liquid pipe, the first adjustment units and the second adjustment units have the same structure, the first adjustment units and the second adjustment units are cross-arranged in multiple groups from top to bottom, and there is always one more group of first adjustment units than the second adjustment units, and adjacent first adjustment units are fixedly connected by connecting rods; a pushing block is arranged between adjacent first adjustment units and second adjustment units, the pushing block passes through the waste liquid pipe and is sealed and slidably connected to the waste liquid pipe, the pushing block is fixed in the middle of the first adjustment unit and is used to push the first adjustment unit; an adjustment block is arranged on one side of the top of the support plate, and the end of the pushing block away from the first adjustment unit contacts the adjustment block, and the contact surfaces of the adjustment block and the pushing block are both inclined surfaces; the first adjustment unit and the second adjustment unit are hinged by staggered motion units.

[0007] Furthermore, a waterproof shell is fixedly connected to the bottom of the inner wall of the waste liquid pipe, and the waterproof shell is sealed and slidably connected to the first regulating unit and the second regulating unit in a horizontal direction, and the waterproof shell is used to wrap the first regulating unit and the second regulating unit.

[0008] Further, the first adjustment unit includes two first adjustment frames, the first adjustment frames are sealed and slidably connected to the waterproof shell in the horizontal direction, the first adjustment frame is L-shaped, the two first adjustment frames are symmetrically arranged, one end of the first adjustment frame is fixedly connected to an extrusion block, the extrusion blocks are relatively arranged, the other ends of the two first adjustment frames are respectively connected to the first C-shaped groove and the second C-shaped groove, the first adjustment frame away from the pushing block is fixedly connected to the first C-shaped groove, and the inner wall of the first C-shaped groove is fixedly connected to an electromagnet, one side of the electromagnet is fixedly connected to the pushing block, the first adjustment frame close to the pushing block is fixedly connected to the second C-shaped groove, and the inner wall of the second C-shaped groove is magnetic, and the electromagnet is slidably connected to the second C-shaped groove; the magnetic force of the electromagnet is stronger than that of the second C-shaped groove; the extrusion blocks are fixedly connected to the semipermeable membrane of the filtration tube, and the surface of the extrusion blocks is evenly provided with filter holes; the material of the electromagnet shell is plastic; The second adjustment unit includes two second adjustment frames, which are sealed and slidably connected to the waterproof shell in the horizontal direction, and one end of the second adjustment frame is fixedly connected to an extrusion block, and the extrusion blocks are arranged opposite to each other. The other ends of the two second adjustment frames are respectively connected to a third C-shaped groove and a fourth C-shaped groove, the second adjustment frame away from the pushing block is fixedly connected to the third C-shaped groove, and the inner wall of the third C-shaped groove is magnetic, the second adjustment frame close to the pushing block is fixedly connected to the fourth C-shaped groove, and the inner wall of the fourth C-shaped groove is fixedly connected to an electromagnet, and the electromagnet is slidably connected to the third C-shaped groove; the magnetic force of the electromagnet is stronger than that of the third C-shaped groove; the adjacent electromagnets are hinged to the staggered motion unit.

[0009] Furthermore, the bottoms of the inner walls of the second C-shaped groove and the third C-shaped groove are provided with fixing holes, and the bottoms of the electromagnets are provided with limiting holes. In a static state, the limiting holes correspond to the fixing holes, and a clamping block is slidably connected between the fixing holes and the limiting holes; the length of the clamping block is the same as that of the fixing hole, and the length of the clamping block is longer than that of the limiting hole, and the clamping block is made of iron.

[0010] Furthermore, a sliding groove is provided on the top of the support plate, the inner wall of the sliding groove is slidably connected to the adjustment block, a hydraulic rod is provided in the sliding groove, the hydraulic rod is fixedly connected to the adjustment block, and the hydraulic rod is used to control the position of the adjustment block.

[0011] Furthermore, the staggered motion unit includes a limit block, the middle part of the outer wall of the limit block is rotatably connected to the waterproof shell, the inner wall of the limit block is slidably connected to two adjustment rods, and the ends of the adjustment rods away from the limit block are hinged to the electromagnet; the surfaces of the adjustment rods are wrapped with reset springs, the two ends of the limit springs are respectively fixed on the surfaces adjacent to the adjustment rod and the limit block, and the reset spring is used to reset the adjustment rod.

[0012] Furthermore, a liquid collecting pan is fixedly connected to the bottom of the waste liquid pipe, and the liquid collecting pan is communicated with the waste liquid pipe, and the bottom of the liquid collecting pan is fixedly connected to the top of the second gear; the filtration tube passes through the center of the bottom of the liquid collecting pan, and the bottom of the outer wall of the filtration tube is fixedly connected to the liquid collecting pan; the outer wall of the liquid collecting pan is sealingly and rotatably connected to a drainage trough, and the drainage trough wraps the liquid collecting pan; the bottom of the side of the drainage trough close to the end face of the ultrafiltration host is fixedly connected to the support plate, the drainage trough is communicated with the inside of the waste liquid pipe, and a drainage pipe is fixedly connected to one side of the drainage trough; the end of the drainage pipe away from the drainage trough passes through the ultrafiltration host, and the part of the drainage pipe that passes through the ultrafiltration host is located above the blood outlet.

[0013] Furthermore, a rear cover plate is provided on the end face of the ultrafiltration host away from the control screen, and the partition plate divides the rear cover plate into a first cover plate and a second cover plate. A plurality of magnetic blocks are fixedly connected to both sides of the first cover plate and the second cover plate on one side close to the interior of the ultrafiltration host, and the magnetic blocks are snap-connected to the ultrafiltration host.

[0014] The present invention has the following beneficial effects: 1. When performing ultrafiltration, the present invention needs to input the patient's blood into the device through the inlet blood vessel, and pump the blood to the inside of the filter tube through the blood pump, and start the driving motor to rotate the filter tube. Some space needs to be reserved in the filter tube to allow the blood to rotate under the action of centrifugal force, so that the blood inside can be in a vortex shape, and the water is separated into the inside of the waste liquid pipe by centrifugal force, thereby increasing the blood treatment efficiency; during the use of the equipment, due to the influence of centrifugal force, the internal liquid will only flow to the waste liquid pipe, and the water flow in the waste liquid pipe is always discharged, and there is not enough water pressure to move to the inside of the filter tube, so the waste liquid pipe only needs to be cleaned before it can be used again, saving the use cost and avoiding the occurrence of cross infection.

[0015] 2. When the electromagnet is not started, the squeezing block of the first adjusting frame moves so that the squeezing block of the second adjusting frame moves in the opposite direction, so that the semipermeable membrane is pulled alternately to form a wave shape, thereby slowing down the blood flow rate, thereby obtaining a better filtering effect, and being suitable for continuous blood purification; after the electromagnet is started, the adjusting block and the pushing block are contacted when the filter tube and the waste liquid tube rotate, and the semipermeable membrane can be pushed and pulled alternately by the first adjusting unit and the second adjusting unit under the action of the staggered motion unit, so that the semipermeable membrane forms a continuous S shape. The S shape formed by staggered pushing of the semipermeable membrane is more stable and has a larger contact area than the wave shape, and will not change the blood flow rate, thereby obtaining a faster filtering efficiency, which is more suitable for emergency scenarios.

[0016] 3. In the present invention, the first adjustment frame and the second adjustment frame can cause lateral shaking through the return spring when they are in staggered motion, so that the semipermeable membrane can be shaken due to the elasticity of the first adjustment frame and the second adjustment frame and the semipermeable membrane itself. Therefore, not only can the impurities attached to the semipermeable membrane be shaken off by inertial shaking to prevent the semipermeable membrane from being blocked and thus affecting the filtration efficiency, but also the extrusion block can be repeatedly brought into contact with the semipermeable membrane through shaking, thereby increasing the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the back split structure of the present invention; Figure 3 For the present invention Figure 2 A partial enlarged view of location A; Figure 4 It is a structural schematic diagram of the ultrafiltration mechanism of the present invention; Figure 5 It is a cross-sectional view of the interior of the ultrafiltration mechanism of the present invention; Figure 6 For the present invention Figure 5 A partial enlarged view of location B; Figure 7 It is a structural schematic diagram of the ultrafiltration mechanism and the regulating mechanism of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the adjusting mechanism of the present invention; Fig. 9 It is a partial cross-sectional view of the adjustment mechanism of the present invention; Fig.10 It is a cross-sectional view of the interlaced motion unit of the present invention; Fig.11 Schematic diagram of three states of the filtration tube of the present invention.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1, ultrafiltration host; 11, blood pump; 12, blood inlet; 13, blood outlet; 14, monitor; 15, control panel; 16, first cover plate; 17, second cover plate; 18, partition plate; 2, ultrafiltration mechanism; 21, support plate; 22, filter tube; 23, waste liquid pipe; 231, drain tank; 233, drain pipe; 24, drive motor; 25, first gear; 26, second gear; 3, adjustment mechanism; 31, first adjustment frame ; 311, first C-shaped groove; 312, second C-shaped groove; 32, extrusion block; 33, electromagnet; 34, second adjustment frame; 341, third C-shaped groove; 342, fourth C-shaped groove; 33, electromagnet; 35, staggered motion unit; 351, limit block; 352, adjustment rod; 36, clamping block; 37, pushing block; 38, adjustment block; 39, waterproof shell; 4, first adjustment unit; 41, connecting rod; 5, second adjustment unit. DETAILED DESCRIPTION

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

[0021] See also Figure 1-Figure 11 As shown, the present invention is a continuous blood purification ultrafiltration device, comprising an ultrafiltration host 1, The end surface of the ultrafiltration main unit 1 is provided with a control panel 15, a monitor 14, an inlet blood vessel 12 and a blood pump 11. The control panel 15 is located above the end surface of the ultrafiltration main unit, the monitor 14 is provided below the control panel 15, the inlet blood vessel 12 is provided between the monitor 14 and the control panel 15, and the blood pump 11 is provided on the right side of the inlet blood vessel 12; the blood pump 11 passes through the end surface of the ultrafiltration main unit 1; One end of the blood inlet 12 penetrates the end surface of the ultrafiltration host 1, and the other end of the blood inlet 12 is wound around the blood pump 11 and is sealed and rotatably connected to the top of the ultrafiltration mechanism 2; The ultrafiltration mechanism 2 is fixed inside the ultrafiltration host 1, and the bottom of the ultrafiltration mechanism 2 is sealed and rotatably connected to one end of the outlet blood vessel 13, and the other end of the outlet blood vessel 13 penetrates the end surface of the ultrafiltration host 1, and the part of the outlet blood vessel 13 penetrating the end surface of the ultrafiltration host 1 is located on the right side of the monitor 14; The blood pump 11 is rotatably connected to the ultrafiltration mechanism 2. A plurality of protrusions are arranged on the circumferential surface of the blood pump 11 located inside the ultrafiltration mechanism 2. The protrusions are in contact with the surface of the blood inlet 12. The interior of the ultrafiltration host 1 is divided into an equipment room and a storage room by a partition plate 18, and the equipment room is located above the storage room; The ultrafiltration mechanism 2 includes a support plate 21, the bottom of the support plate 21 is fixedly connected to the partition plate 18 through a support foot, and a drive motor 24 is fixedly connected to the bottom of the support plate 21; the output shaft of the drive motor 24 passes through the support plate 21 from the bottom and is fixedly connected to the first gear 25; the first gear 25 meshes with the second gear 26, and the second gear 26 is rotatably connected to the top of the support plate 21, and the center of the top surface of the second gear 26 is fixedly connected to the filter tube 22, and the center of the top of the filter tube 22 is sealed and rotatably connected to the inlet blood vessel 12, and the outlet blood vessel 13 passes through the support plate 21. The support plate 21 and the second gear 26, and the blood outlet tube 13 are sealed and rotatably connected with the bottom center of the filter tube 22; the tube surface of the filter tube 22 is a semipermeable membrane, and the semipermeable membrane is elastic; the outer wall of the top of the filter tube 22 is sleeved with a waste liquid pipe 23, and the filter tube 22 is snap-fitted with the waste liquid pipe 23; the waste liquid pipe 23 is fixedly connected to the top of the second gear 26, and the inside of the waste liquid pipe 23 is slidably connected with an adjustment mechanism 3, which is fixedly connected to the semipermeable membrane of the filter tube 22, and the adjustment mechanism 3 is used to adjust the shape of the semipermeable membrane to suit different usage scenarios.

[0022] In this embodiment, in the prior art, in a conventional scenario, the blood passes through a semipermeable membrane to precipitate water, but in an emergency scenario, the processing speed needs to be increased. In the prior art, the processing speed is increased by increasing the pressure of the blood or reducing the pressure in the waste liquid pipe 23. By changing the pressure, the flow rate of the blood can be increased, and the contact area with the semipermeable membrane can be increased. However, due to the pressure, substances in the blood may adhere to the semipermeable membrane, thereby causing blockage of the semipermeable membrane. In addition, the blood always flows from top to bottom, and a part of the blood cannot contact the semipermeable membrane, so that it cannot be filtered evenly. In the prior art, the filter tube 22 and the waste liquid pipe 23 cannot be reused due to contact with the blood. Even if they are reused, they need to go through a large number of cleaning and disinfection steps to prevent cross infection or virus transmission through the blood. The prior art requires replacement or cleaning of the filter tube 22 during treatment to ensure that the filter tube 22 will not be blocked or contaminated, but this will also increase the cost of use. When performing ultrafiltration, the patient's blood is input into the device through the inlet blood vessel 12, and the blood is pumped to the inside of the filtration tube 22 through the blood pump 11. At this time, the first gear 25 is driven to rotate by starting the drive motor 24 and the second gear 26 is driven to rotate. When the second gear 26 rotates, the filtration tube 22 can be driven to rotate. Some space needs to be reserved in the filtration tube 22 so that the blood can rotate under the action of centrifugal force. At this time, the blood will be in a vortex shape under the action of rotation. Using the Bernoulli principle, the flow rate at the vortex is faster and the pressure is smaller, which will cause part of the blood to drive the blood cells to fill the vortex. Therefore, most of the blood cells in the blood will be in the center, and most of the blood close to the filtration tube 22 is water in the blood. When the filtration tube 22 rotates, the water will be separated into the inside of the waste liquid tube 23 by centrifugal force, thereby increasing the blood treatment efficiency; in the prior art, the filtration tube 22 and the waste liquid tube 2 3 is often integrated, and in order to avoid cross infection after use, it will be discarded. Even if it is cleaned, it will be inconvenient to clean because it is integrated. In this device, the filter tube 22 and the waste liquid tube 23 are snap-connected. After use, the filter tube 22 and the waste liquid tube 23 can be removed for cleaning. When the filter tube 22 needs to be discarded, the waste liquid tube 23 does not need to be discarded; during the use of the device, due to the influence of centrifugal force, the water in the filter tube 22 will only flow to the waste liquid tube 23, and the water in the waste liquid tube 23 is always discharged, and there is not enough water pressure to move to the inside of the filter tube 22, so the waste liquid tube 23 only needs to be cleaned before it can be used again, which saves the use cost and avoids the occurrence of cross infection; the power of the driving motor 24 only needs to drive the filter tube 22 and the waste liquid tube 23 to rotate. At this time, the blood can not only be filtered more efficiently under the action of centrifugal force, but also can avoid the rupture of the semipermeable membrane caused by excessive power.

[0023] When ultrafiltration is finished, the blood will flow out through the outlet blood vessel 13 at the bottom of the filter tube 22, and the processed blood can be tested by the monitor 14 to detect whether the processed blood meets the standard, and then the blood can be returned to the patient's body; The equipment room on the partition plate 18 is used for placing equipment, and the storage room under the partition plate 18 is used for placing medical supplies, such as replacement filter tubes 22 and the like.

[0024] Specifically, the adjustment mechanism 3 includes multiple groups of first adjustment units 4 and multiple groups of second adjustment units 5. The first adjustment units 4 and the second adjustment units 5 slide inside the waste liquid pipe 23. The first adjustment units 4 and the second adjustment units 5 have the same structure. The first adjustment units 4 and the second adjustment units 5 are cross-arranged in multiple groups from top to bottom, and the first adjustment units 4 always have one more group than the second adjustment units 5. Adjacent first adjustment units 4 are fixedly connected by connecting rods 41; a pushing block 37 is arranged between adjacent first adjustment units 4 and second adjustment units 5. The pushing block 37 passes through the waste liquid pipe 23 and is sealed and slidably connected to the waste liquid pipe 23. The pushing block 37 is fixed in the middle of the first adjustment unit 4 and is used to push the first adjustment unit 4; an adjustment block 38 is arranged on one side of the top of the support plate 21, and the end of the pushing block 37 away from the first adjustment unit 4 contacts the adjustment block 38, and the contact surfaces of the adjustment block 38 and the pushing block 37 are both inclined surfaces; the first adjustment unit 4 and the second adjustment unit 5 are hinged by the staggered motion unit 35.

[0025] In this embodiment, considering that the water in the blood is separated during ultrafiltration, the water is separated from the blood by changing the pressure difference on both sides of the semipermeable membrane during separation. In the prior art, the contact area between the blood and the semipermeable membrane cannot be changed or can only be changed by the pressure difference, and the shape of the semipermeable membrane is cylindrical. For specific shapes, refer to the attached Fig.11 In a, in an emergency scenario, if the processing speed needs to be increased, the pressure difference on both sides of the semipermeable membrane needs to be increased. At the same time, after the processing speed is increased, the quality of water separation may decrease, and the water content of the blood may not be fully separated; During the ultrafiltration of blood, the filter tube 22 and the waste liquid tube 23 rotate to make the adjusting block 38 contact with the pushing block 37. At this time, the pushing block 37 pushes the first adjusting unit 4 and the second adjusting unit 5 to move. The first adjusting unit 4 and the second adjusting unit 5 can alternately pull the semipermeable membrane outward under the action of the staggered motion unit 35, so that both sides of the semipermeable membrane form a wave shape. The specific shape can be referred to in the attached figure. Fig.11 b in it; while increasing the contact area between the blood and the semipermeable membrane, the diameter of the semipermeable membrane can be changed, so that the contact area between the blood and the semipermeable membrane is increased, and at the same time the flow rate of the blood is slowed down to achieve more complete filtration, which is suitable for long-term continuous blood purification.

[0026] Specifically, a waterproof shell 39 is fixedly connected to the bottom of the inner wall of the waste liquid pipe 23 , and the waterproof shell 39 is sealed and slidably connected to the first regulating unit 4 and the second regulating unit 5 in a horizontal direction. The waterproof shell 39 is used to wrap the first regulating unit 4 and the second regulating unit 5 .

[0027] In this embodiment, it is considered that the electromagnet 33 will be energized, and the waterproof level used on the market is mostly IP54, and the high-quality ones can reach IP67, but the waterproofing is achieved by glue filling or glue encapsulation, so it cannot be immersed in water for a long time. If the electromagnet 33 is flooded, it may cause the device to fail to operate normally, and it may cause leakage. In order to prevent the above situation from occurring, the waterproof shell 39 can be set to prevent liquid from entering, and the first adjustment frame 31 can move inside the waterproof shell 39. The sealing ring and the like can ensure the internal sealing of the first adjustment frame 31 when moving, so as to prevent liquid from entering and causing damage to the equipment, while also saving the cost of use.

[0028] Specifically, the first adjustment unit 4 includes two first adjustment frames 31, the first adjustment frames 31 are sealed and slidably connected to the waterproof housing 39 in the horizontal direction, the first adjustment frames 31 are L-shaped, the two first adjustment frames 31 are symmetrically arranged, one end of each of the first adjustment frames 31 is fixedly connected to an extrusion block 32, the extrusion blocks 32 are arranged oppositely, and the other ends of the two first adjustment frames 31 are respectively connected to a first C-shaped groove 311 and a second C-shaped groove 312, the first adjustment frame 31 away from the push block 37 is fixedly connected to the first C-shaped groove 311, and the first C The inner wall of the C-shaped groove 311 is fixedly connected with an electromagnet 33, one side of the electromagnet 33 is fixedly connected with a push block 37, the first adjustment frame 31 close to the push block 37 is fixedly connected with the second C-shaped groove 312, and the inner wall of the second C-shaped groove 312 is magnetic, and the electromagnet 33 is slidably connected with the second C-shaped groove 312; the magnetic force of the electromagnet 33 is stronger than the magnetic force of the second C-shaped groove 312; the extrusion blocks 32 are fixedly connected with the semipermeable membrane of the filter tube 22, and the surface of the extrusion blocks 32 is evenly provided with filter holes; the material of the outer shell of the electromagnet 33 is plastic; The second adjustment unit 5 includes two second adjustment frames 34, which are sealed and slidably connected to the waterproof shell 39 in the horizontal direction. One end of the second adjustment frame 34 is fixedly connected to the extrusion block 32, and the extrusion blocks 32 are arranged opposite to each other. The other ends of the two second adjustment frames 34 are respectively connected to the third C-shaped groove 341 and the fourth C-shaped groove 342. The second adjustment frame 34 away from the pushing block 37 is fixedly connected to the third C-shaped groove 341, and the inner wall of the third C-shaped groove 341 is magnetic. The second adjustment frame 34 close to the pushing block 37 is fixedly connected to the fourth C-shaped groove 342, and the inner wall of the fourth C-shaped groove 342 is fixedly connected to the electromagnet 33, and the electromagnet 33 is slidably connected to the third C-shaped groove 341; the magnetic force of the electromagnet 33 is stronger than the magnetic force of the third C-shaped groove 341; the adjacent electromagnets 33 are hinged to the staggered motion unit 35.

[0029] In this embodiment, considering that blood ultrafiltration is applied to conventional scenarios and emergency scenarios, different filtration efficiencies are required in different scenarios. In conventional treatment, it is necessary to ensure that excess water in the tissue is completely removed, and the treatment effect is more important at this time. However, in emergency treatment, it is necessary to quickly remove the water in the tissue in a short time, and the treatment efficiency is more important at this time. It is also necessary to ensure that no additional impact is caused to the patient during blood treatment. For example, increasing the amount of blood drawn for treatment efficiency may cause hypotension in the patient, and hypotension may be life-threatening to the patient during emergency treatment. When it is needed to be used in different scenes, the adjusting block 38 pushes the pushing block 37 when the adjusting mechanism 3 is rotated, and the first adjusting frame 31 can be moved. Each first adjusting frame 31 can realize synchronous movement through the connecting rod 41, and the second adjusting frame 34 can staggeredly move with the first adjusting frame 31 under the action of the staggered motion unit 35, so that the squeezing block 32 can repeatedly push on both sides of the filter tube 22. Since there are filter holes on the surface of the squeezing block 32, the squeezing block 32 can stretch the semipermeable membrane through the setting of the first adjusting frame 31. At this time, the water in the blood can flow out through the filter holes, which can avoid the squeezing block 32 blocking the filter tube 22. The problem of reduced filtration area caused by the semipermeable membrane is solved, and the shape of the semipermeable membrane can be changed by stretching the extrusion block 32, so that the filtration area is increased. When the filtration area is increased, the total amount of blood does not change, so the filtration efficiency of the blood will slow down, which is suitable for long-term continuous blood purification; at this time, the blood in the filtration tube 22 can be shaken, so that the blood can be shaken, so that the water near the center of the blood can be shaken to the semipermeable membrane for filtration. At the same time, when the semipermeable membrane is blocked by substances in the blood, the semipermeable membrane can be pushed by the extrusion block 32 due to the inertia of the substance itself. When the electromagnet 33 is not activated, when the squeezing block 32 of the first adjusting frame 31 moves, the squeezing block 32 of the second adjusting frame 34 moves in the opposite direction through the staggered motion unit 35, so that the semipermeable membrane is alternately pushed and pulled, thereby forming a wave shape; By setting the electromagnet 33, the electromagnet 33 can be powered when the device is running, so that the electromagnet 33 has magnetism, and can attract each other with the second C-shaped groove 312 and the third C-shaped groove 341, so that every two first adjustment frames 31 are magnetically fixed, and every two second adjustment frames 34 are also magnetically fixed; when the adjustment block 38 pushes the pushing block 37, the first adjustment frame 31 is moved, and the two groups of first adjustment frames 31 and the extrusion block 32 can move synchronously. By setting the staggered motion unit 35, the first adjustment frame 31 and the second adjustment frame 34 are staggered. When the extrusion block 32 of the first adjustment frame 31 pulls the semipermeable membrane, the second adjustment frame 34 pushes the semipermeable membrane, so that the semipermeable membrane becomes a continuous S shape. For details, please refer to the attached Fig.11Compared with the wave-shaped c, the contact area becomes larger while the diameter remains unchanged, which will not change the blood flow rate, thereby achieving better filtering effect and faster filtering efficiency, which is suitable for emergency scenarios; Since the second adjustment frame 34 only slides on the waterproof shell 39, the shaking between the first adjustment frame 31 and the second adjustment frame 34 through the movement of the staggered motion unit 35 can make the first adjustment frame 31 and the second adjustment frame 34 shake due to inertia and the elasticity of the semipermeable membrane, thereby not only can the impurities attached to the semipermeable membrane be shaken off by the inertial shaking to prevent the semipermeable membrane from being blocked and thus affecting the filtration efficiency, but also the extrusion block 32 can be repeatedly brought into contact with the semipermeable membrane by the shaking, thereby increasing the filtration efficiency.

[0030] Specifically, the bottom of the inner wall of the second C-shaped groove 312 and the third C-shaped groove 341 are both provided with fixing holes, and the bottom of the electromagnet 33 is provided with limiting holes. In the static state, the limiting holes correspond to the fixing holes, and a clamping block 36 is slidably connected between the fixing holes and the limiting holes; the length of the clamping block 36 is the same as that of the fixing hole, and the length of the clamping block 36 is longer than the limiting hole, and the clamping block 36 is made of iron.

[0031] In the present embodiment, it is considered that when the adjustment block 38 pushes the pushing block 37 to move the first adjustment frame 31, the inertia of the first adjustment frame 31 may be too large, causing it to be out of the magnetic attraction range of the electromagnet 33, thereby causing the two first adjustment frames 31 to be unable to be stably fixed; since the electromagnet 33 has been fixed in the first C-shaped groove 311 and the fourth C-shaped groove 342, after the electromagnet 33 is energized, the electromagnet 33 is magnetically fixed to the second C-shaped groove 312 and the third C-shaped groove 341. Through the setting of the clamping block 36, the electromagnet 33 can be sucked out after generating a magnetic force, and it can be engaged with the limiting hole to prevent it from being separated.

[0032] Specifically, a sliding groove is provided on the top of the support plate 21 , the inner wall of the sliding groove is slidably connected to the adjustment block 38 , a hydraulic rod is provided in the sliding groove, the hydraulic rod is fixedly connected to the adjustment block 38 , and the hydraulic rod is used to control the position of the adjustment block 38 .

[0033] In this embodiment, considering that the adjusting block 38 always pushes the adjusting mechanism 3 with the same amplitude when contacting with the pushing block 37, when treating different patients, the amplitude may be too large, resulting in excessive removal of water from the blood, and hypotension may occur due to a rapid decrease in blood volume. The position of the adjusting block 38 can be adjusted by setting the sliding groove and the hydraulic rod to control the area of ​​the contact pushing block 37, and indirectly control the amplitude of the movement of the adjusting mechanism 3, so as to control the blood treatment efficiency and prevent the blood volume from decreasing too quickly due to excessive treatment speed.

[0034] Specifically, the staggered motion unit 35 includes a limit block 351, the middle part of the outer wall of the limit block 351 is rotatably connected to the waterproof shell 39, and the inner wall of the limit block 351 is slidably connected to two adjustment rods 352, and the ends of the adjustment rods 352 away from the limit block 351 are hinged to the electromagnet 33; the surface of the adjustment rod 352 is wrapped with a reset spring, and the two ends of the limit spring are respectively fixed on the surfaces adjacent to the adjustment rod 352 and the limit block 351, and the reset spring is used to reset the adjustment rod 352.

[0035] In this embodiment, considering that the first adjustment frame 31 and the second adjustment frame 34 are dislocated, a longer adjustment rod 352 is required when the first adjustment frame 31 and the second adjustment frame 34 are far apart when moving. However, when the distance is close or when the direction is alternated, the adjustment rod 352 may get stuck, thereby failing to alternate the direction. In order to avoid the above problems, the limit block 351 can be set to rotate following the movement of the adjustment rod 352 to facilitate the staggered movement. At the same time, the adjustment rod 352 can slide in the limit block 351 to extend and retract the adjustment rod 352. When the first adjustment frame 31 and the second adjustment frame 34 are far apart, the first adjustment frame 31 will be staggered with the second adjustment frame 34 through the pushing block 37. The return spring will push the adjustment rod 352 to move outward. At this time, the staggered movement can be performed, so that the adjustment rod 352 has a longer distance to connect the first adjustment frame 31 and the second adjustment frame When the first adjustment frame 31 and the second adjustment frame 34 are alternately moved in direction, they will approach each other first. At this time, the adjustment rod 352 will slide toward the inside of the limit block 351. At this time, the return spring will be compressed. When the adjustment rod 352 is pushed outward, the force of the return spring is always the same, and the adjustment rod 352 can be restricted when the first adjustment unit 4 and the second adjustment unit 5 are alternately moved to prevent excessive deformation of the semipermeable membrane. At the same time, the elastic force of the spring can be used to repeatedly shake the semipermeable membrane, and impurities attached to the semipermeable membrane can be shaken off by shaking to prevent the semipermeable membrane from being blocked.

[0036] Specifically, the bottom of the waste liquid pipe 23 is fixedly connected to a liquid collecting tray, and the liquid collecting tray is communicated with the waste liquid pipe 23, and the bottom of the liquid collecting tray is fixedly connected to the top of the second gear 26; the filtration tube 22 passes through the center of the bottom of the liquid collecting tray, and the bottom of the outer wall of the filtration tube 22 is fixedly connected to the liquid collecting tray; the outer wall of the liquid collecting tray is sealed and rotatably connected to a drainage trough 231, and the drainage trough 231 wraps the liquid collecting tray; the bottom of the side of the drainage trough 231 close to the end face of the ultrafiltration host 1 is fixedly connected to the support plate 21, the drainage trough 231 is communicated with the inside of the waste liquid pipe 23, and a drainage pipe 233 is fixedly connected to one side of the drainage trough 231; the end of the drainage pipe 233 away from the drainage trough 231 passes through the ultrafiltration host 1, and the part of the drainage pipe 233 passing through the ultrafiltration host 1 is located above the blood outlet blood vessel 13.

[0037] In this embodiment, considering that ultrafiltration usually takes several hours in a conventional scenario, if the filtered water cannot be discharged during this period, the filter tube 22 and the waste liquid pipe 23 will be replaced multiple times, which will increase the cost of use. Therefore, the water inside the waste liquid pipe 23 will be discharged during use; the area of ​​the bottom can be increased by setting the collecting tray and the drain trough 231 to increase the partial water storage capacity. During operation, the collecting tray will rotate with the waste liquid pipe 23, and the positions of the drain trough 231 and the drain pipe 233 are fixed. When the collecting tray rotates, the internal liquid will flow to the drain trough 231 through centrifugal force. At the same time, the water inside the drain trough 231 can be discharged through the connection of the drain pipe 233, so as to avoid excessive liquid accumulation inside the waste liquid pipe 23 that cannot be discharged, increase the utilization rate of the filter tube 22, and enable the equipment to adapt to long-term filtration.

[0038] Specifically, a rear cover is provided on the end face of the ultrafiltration host 1 away from the control panel 15, and a partition plate 18 divides the rear cover into a first cover 16 and a second cover 17. A plurality of magnetic blocks are fixedly connected to both sides of the first cover 16 and the second cover 17 on one side close to the interior of the ultrafiltration host 1, and the magnetic blocks are snap-connected to the ultrafiltration host 1.

[0039] In this embodiment, considering that most of the devices are placed inside the device, this can prevent the blood transfusion tube from being left outside the device for too long and causing entanglement, and can also prevent the blood transfusion tube from being pulled and causing the patient's body to be separated from the blood transfusion tube; but it will also make the device inconvenient when in use; by setting the magnetic block, the first cover plate 16 and the second cover plate 17 can be magnetically connected to the ultrafiltration host 1, and the connection by magnetic attraction saves the steps of tightening screws, and is very convenient during installation and removal.

[0040] When using, First, when performing ultrafiltration, the patient's blood is first input into the device through the inlet blood vessel 12, and the blood is pumped to the inside of the filtering tube 22 through the blood pump 11. At this time, the driving motor 24 is started to drive the first gear 25 to rotate and drive the second gear 26 to rotate. When the second gear 26 rotates, the filtering tube 22 can be driven to rotate. When the filtering tube 22 rotates, the blood inside will rotate synchronously and make the blood vortex-shaped. At this time, the pressure of the blood close to the filtering tube 22 is relatively large, so most of the blood cells in the blood will be in the center, and most of the blood close to the filtering tube 22 is water in the blood. When the filtering tube 22 rotates, the water will be separated into the inside of the waste liquid tube 23 by centrifugal force, thereby increasing the blood treatment efficiency; During the use of the equipment, due to the influence of centrifugal force, the water in the filter tube 22 will only flow to the waste liquid pipe 23, and the water in the waste liquid pipe 23 is always discharged, and there is not enough water pressure to move into the filter tube 22, so the waste liquid pipe 23 only needs to be cleaned before it can be used again, which saves the cost of use and avoids the occurrence of cross infection; the power of the drive motor 24 only needs to drive the filter tube 22 and the waste liquid pipe 23 to rotate. At this time, the blood can not only be filtered more efficiently under the action of centrifugal force, but also the rupture of the semipermeable membrane caused by excessive power can be avoided.

[0041] Secondly, when it is needed for different scenarios, such as routine ultrafiltration and emergency ultrafiltration, The position of the adjusting block 38 can be adjusted by setting the sliding groove to control the area of ​​the contact pushing block 37, and indirectly control the movement amplitude of the first adjusting unit 4, so as to control the blood treatment efficiency and prevent the blood volume from decreasing too quickly due to the excessive treatment speed; When conventional treatment is needed, since the squeezing block 32 can pass fluid, the first adjusting unit 4 and the second adjusting unit 5 can alternately pull the semipermeable membrane outward under the action of the staggered motion unit 35, so that both sides of the semipermeable membrane form a wave shape. At this time, the water in the semipermeable membrane can also flow out through the squeezing block 32 to avoid the squeezing block 32 blocking the water outflow and causing the blood treatment efficiency to decrease. When the electromagnet 33 is not started, when the squeezing block 32 of the first adjusting frame 31 moves, the squeezing block 32 of the second adjusting frame 34 moves in the opposite direction, so that the semipermeable membrane is alternately pushed and pulled, so that both sides of the semipermeable membrane form a wave shape. The specific shape can be referred to in the attached Fig.11 b in the figure; while increasing the contact area between the blood and the semipermeable membrane, the diameter of the semipermeable membrane can be changed, so that the contact area between the blood and the semipermeable membrane is increased, and at the same time the blood flow rate is slowed down to achieve more complete filtration, which is suitable for long-term continuous blood purification; When first aid is needed, the electromagnet 33 can be powered when the device is running through the setting of the electromagnet 33, so that the electromagnet 33 has magnetism, and can attract each other with the second C-shaped groove 312 and the third C-shaped groove 341, so that every two first adjustment frames 31 are magnetically fixed, and every two second adjustment frames 34 are also magnetically fixed; when the adjustment block 38 pushes the pushing block 37, the first adjustment frame 31 can be moved, and the two groups of first adjustment frames 31 and the extrusion block 32 can be moved synchronously. Through the setting of the staggered motion unit 35, the first adjustment frame 31 and the second adjustment frame 34 can be staggered. When the extrusion block 32 of the first adjustment frame 31 pulls the semipermeable membrane, the second adjustment frame 34 will push the semipermeable membrane, so that the semipermeable membrane becomes a continuous S shape. For details, please refer to the attached Fig.11 Compared with the wave-shaped c, the contact area becomes larger while the diameter remains unchanged, which will not change the blood flow rate, thereby achieving better filtering effect and faster filtering efficiency, which is suitable for emergency scenarios; Since the second adjustment frame 34 only slides on the waterproof shell 39, the shaking between the first adjustment frame 31 and the second adjustment frame 34 through the movement of the staggered motion unit 35 can make the first adjustment frame 31 and the second adjustment frame 34 shake due to inertia and the elasticity of the semipermeable membrane, thereby not only can the impurities attached to the semipermeable membrane be shaken off by the inertial shaking to prevent the semipermeable membrane from being blocked and thus affecting the filtration efficiency, but also the extrusion block 32 can be repeatedly brought into contact with the semipermeable membrane by the shaking, thereby increasing the filtration efficiency.

[0042] At the same time, when the first adjustment unit 4 and the second adjustment unit 5 use the staggered motion unit 35 to perform staggered motion, the setting of the limit block 351 can follow the movement of the adjustment rod 352 to rotate, so as to facilitate staggered movement. At the same time, the adjustment rod 352 can slide in the limit block 351 to extend and retract the adjustment rod 352. When the first adjustment frame 31 and the second adjustment frame 34 are far apart, the adjustment rod 352 can slide outward, so that the adjustment rod 352 has a longer distance to connect the first adjustment frame 31 and the second adjustment frame 34. When the first adjustment frame 31 and the second adjustment frame 34 alternate in direction, they will first approach each other, and at this time, the adjustment rod 352 will slide toward the inside of the limit block 351; the setting of the limit spring can prevent the adjustment rod 352 from being restricted when the first adjustment unit 4 and the second adjustment unit 5 alternate, so as to prevent excessive deformation of the semipermeable membrane. At the same time, the elastic force of the spring can be used to achieve the effect of repeatedly shaking the semipermeable membrane, and the impurities attached to the semipermeable membrane can be shaken off by shaking to prevent the semipermeable membrane from being blocked.

[0043] Finally, the bottom area can be increased by setting the liquid collecting tray and the liquid draining trough 231 to increase the amount of water stored. During operation, the liquid collecting tray will rotate along with the waste liquid pipe 23, and the positions of the liquid draining trough 231 and the liquid draining pipe 233 are fixed. When the liquid collecting tray rotates, the internal liquid will flow to the liquid draining trough 231 by centrifugal force. At the same time, the water in the liquid draining trough 231 can be discharged through the connection of the liquid draining pipe 233, so as to avoid excessive liquid accumulation in the waste liquid pipe 23 that cannot be discharged, thereby increasing the utilization rate of the filter tube 22 and enabling the device to adapt to long-term filtration. When ultrafiltration is completed, the blood will flow out through the outlet blood vessel 13 at the bottom of the filtration tube 22, and the processed blood can be tested by the monitor 14 to detect whether the processed blood meets the standards, and then the blood can be returned to the patient's body.

[0044] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A continuous blood purification ultrafiltration device, comprising an ultrafiltration host (1), The end surface of the ultrafiltration main unit (1) is provided with a control panel (15), a monitor (14), an inlet blood vessel (12) and a blood pump (11); the control panel (15) is located above the end surface of the ultrafiltration main unit; the monitor (14) is provided below the control panel (15); the inlet blood vessel (12) is provided between the monitor (14) and the control panel (15); the blood pump (11) is provided on the right side of the inlet blood vessel (12); the blood pump (11) passes through the end surface of the ultrafiltration main unit (1); One end of the blood inlet (12) penetrates the end surface of the ultrafiltration host (1), and the other end of the blood inlet (12) is wound around the blood pump (11) and is sealed and rotatably connected to the top of the ultrafiltration mechanism (2); The ultrafiltration mechanism (2) is fixed inside the ultrafiltration host (1), the bottom of the ultrafiltration mechanism (2) is sealed and rotatably connected to one end of the blood outlet blood vessel (13), the other end of the blood outlet blood vessel (13) penetrates the end surface of the ultrafiltration host (1), and the portion of the blood outlet blood vessel (13) penetrating the end surface of the ultrafiltration host (1) is located on the right side of the monitor (14); The blood pump (11) is rotatably connected to the ultrafiltration mechanism (2); a plurality of protrusions are arranged on a circumferential surface of the blood pump (11) located inside the ultrafiltration mechanism (2); and the protrusions are in contact with the surface of the inlet blood vessel (12); Features: The interior of the ultrafiltration host (1) is divided into an equipment room and a storage room by a partition plate (18), and the equipment room is located above the storage room; The ultrafiltration mechanism (2) comprises a support plate (21), the bottom of the support plate (21) is fixedly connected to the partition plate (18) via a support foot, and the bottom of the support plate (21) is fixedly connected to a driving motor (24); the output shaft of the driving motor (24) passes through the support plate (21) from the bottom and is fixedly connected to a first gear (25); the first gear (25) meshes with a second gear (26), the second gear (26) is rotatably connected to the top of the support plate (21), the center of the top surface of the second gear (26) is fixedly connected to a filtering tube (22), the center of the top of the filtering tube (22) is sealingly rotatably connected to the inlet blood vessel (12), and the outlet blood vessel (13) is fixedly connected to the filter tube (22). The support plate (21) and the second gear (26) are penetrated, and the blood outlet tube (13) is rotatably connected to the bottom center of the filter tube (22); the tube surface of the filter tube (22) is a semipermeable membrane, and the semipermeable membrane is elastic; the outer wall of the top of the filter tube (22) is sleeved with a waste liquid pipe (23), and the filter tube (22) is snap-connected with the waste liquid pipe (23); the waste liquid pipe (23) is fixedly connected to the top of the second gear (26), and the inside of the waste liquid pipe (23) is slidably connected with an adjustment mechanism (3), and the adjustment mechanism (3) is fixedly connected to the semipermeable membrane of the filter tube (22), and the adjustment mechanism (3) is used to adjust the shape of the semipermeable membrane to be suitable for different usage scenarios.

2. A continuous blood purification ultrafiltration device according to claim 1, characterized in that: The regulating mechanism (3) comprises a plurality of groups of first regulating units (4) and a plurality of groups of second regulating units (5), wherein the first regulating units (4) and the second regulating units (5) slide inside the waste liquid pipe (23), the first regulating units (4) and the second regulating units (5) have the same structure, the first regulating units (4) and the second regulating units (5) are arranged in a plurality of groups in a cross-arranged manner from top to bottom, and the first regulating units (4) always have one more group than the second regulating units (5), and adjacent first regulating units (4) are fixedly connected by connecting rods (41); adjacent first regulating units (4) and second regulating units ( 5), a pushing block (37) is arranged between the first adjusting unit (4) and the second adjusting unit (5), the pushing block (37) passes through the waste liquid pipe (23) and is sealed and slidably connected to the waste liquid pipe (23), the pushing block (37) is fixed at the middle of the first adjusting unit (4) and is used to push the first adjusting unit (4); an adjusting block (38) is arranged on one side of the top of the support plate (21), the end of the pushing block (37) away from the first adjusting unit (4) is in contact with the adjusting block (38), and the contact surfaces of the adjusting block (38) and the pushing block (37) are both inclined surfaces; the first adjusting unit (4) and the second adjusting unit (5) are hinged through the staggered motion unit (35).

3. A continuous blood purification ultrafiltration device according to claim 2, characterized in that: A waterproof shell (39) is fixedly connected to the bottom of the inner wall of the waste liquid pipe (23), and the waterproof shell (39) is sealed and slidably connected to the first adjustment unit (4) and the second adjustment unit (5) in the horizontal direction. The waterproof shell (39) is used to wrap the first adjustment unit (4) and the second adjustment unit (5).

4. A continuous blood purification ultrafiltration device according to claim 3, characterized in that: The first adjustment unit (4) comprises two first adjustment frames (31), the first adjustment frames (31) being sealed and slidably connected to the waterproof housing (39) in a horizontal direction, the first adjustment frames (31) being L-shaped, the two first adjustment frames (31) being symmetrically arranged, one end of each of the first adjustment frames (31) being fixedly connected to an extrusion block (32), the extrusion blocks (32) being arranged opposite to each other, the other ends of the two first adjustment frames (31) being respectively connected to a first C-shaped groove (311) and a second C-shaped groove (312), the first adjustment frame (31) being away from the push block (37) being fixedly connected to the first C-shaped groove (311), and the first C-shaped groove The inner wall of (311) is fixedly connected with an electromagnet (33), one side of the electromagnet (33) is fixedly connected with a push block (37), the first adjustment frame (31) close to the push block (37) is fixedly connected with the second C-shaped groove (312), and the inner wall of the second C-shaped groove (312) is magnetic, and the electromagnet (33) is slidably connected with the second C-shaped groove (312); the magnetic force of the electromagnet (33) is stronger than the magnetic force of the second C-shaped groove (312); the extrusion blocks (32) are fixedly connected with the semipermeable membrane of the filter tube (22), and the surface of the extrusion blocks (32) is evenly provided with filter holes; the material of the outer shell of the electromagnet (33) is plastic; The second adjustment unit (5) comprises two second adjustment frames (34), each of the second adjustment frames (34) being sealed and slidably connected to the waterproof housing (39) in a horizontal direction, one end of each of the second adjustment frames (34) being fixedly connected to an extrusion block (32), the extrusion blocks (32) being arranged opposite to each other, the other ends of the two second adjustment frames (34) being respectively connected to a third C-shaped groove (341) and a fourth C-shaped groove (342), the second adjustment frame (34) away from the push block (37) and the third C-shaped groove (341) being connected to the fourth C-shaped groove (342). 41), the inner wall of the third C-shaped groove (341) is magnetic, the second adjustment frame (34) close to the push block (37) is fixedly connected to the fourth C-shaped groove (342), the inner wall of the fourth C-shaped groove (342) is fixedly connected to the electromagnet (33), and the electromagnet (33) is slidably connected to the third C-shaped groove (341); the magnetic force of the electromagnet (33) is stronger than the magnetic force of the third C-shaped groove (341); the adjacent electromagnets (33) are all hinged to the staggered motion unit (35).

5. A continuous blood purification ultrafiltration device according to claim 4, characterized in that: The bottom of the inner wall of the second C-shaped groove (312) and the third C-shaped groove (341) are both provided with fixing holes, and the bottom of the electromagnet (33) is both provided with limiting holes. The limiting holes correspond to the fixing holes in a static state, and a clamping block (36) is slidably connected between the fixing holes and the limiting holes; the length of the clamping block (36) is the same as that of the fixing hole, and the length of the clamping block (36) is longer than that of the limiting hole, and the clamping block (36) is made of iron.

6. A continuous blood purification ultrafiltration device according to claim 2, characterized in that: A sliding groove is provided on the top of the support plate (21), the inner wall of the sliding groove is slidably connected to the adjustment block (38), a hydraulic rod is provided in the sliding groove, the hydraulic rod is fixedly connected to the adjustment block (38), and the hydraulic rod is used to control the position of the adjustment block (38).

7. A continuous blood purification ultrafiltration device according to claim 4, characterized in that: The staggered motion unit (35) comprises a limit block (351), the middle part of the outer wall of the limit block (351) is rotatably connected to the waterproof shell (39), the inner wall of the limit block (351) is slidably connected to two adjustment rods (352), and the ends of the adjustment rods (352) away from the limit block (351) are hinged to the electromagnet (33); the surface of the adjustment rod (352) is wrapped with a reset spring, and the two ends of the limit spring are respectively fixed to the surfaces adjacent to the adjustment rod (352) and the limit block (351), and the reset spring is used to reset the adjustment rod (352).

8. A continuous blood purification ultrafiltration device according to claim 1, characterized in that: The bottom of the waste liquid pipe (23) is fixedly connected to a liquid collecting tray, and the liquid collecting tray is in communication with the waste liquid pipe (23), and the bottom of the liquid collecting tray is fixedly connected to the top of the second gear (26); the filter tube (22) passes through the center of the bottom of the liquid collecting tray, and the bottom of the outer wall of the filter tube (22) is fixedly connected to the liquid collecting tray; the outer wall of the liquid collecting tray is sealed and rotatably connected to a liquid drain groove (231), and the liquid drain groove (231) wraps the liquid collecting tray; the liquid drain groove (2 The bottom of one side of the ultrafiltration main unit (31) close to the end surface of the ultrafiltration main unit (1) is fixedly connected to the support plate (21), the drainage groove (231) is connected to the inside of the waste liquid pipe (23), and a drainage pipe (233) is fixedly connected to one side of the drainage groove (231); the end of the drainage pipe (233) away from the drainage groove (231) passes through the ultrafiltration main unit (1), and the part of the drainage pipe (233) passing through the ultrafiltration main unit (1) is located above the blood outlet blood vessel (13).

9. A continuous blood purification ultrafiltration device according to claim 1, characterized in that: A rear cover plate is provided on the end face of the ultrafiltration host (1) away from the control panel (15); the partition plate (18) divides the rear cover plate into a first cover plate (16) and a second cover plate (17); a plurality of magnetic blocks are fixedly connected to both sides of the first cover plate (16) and the second cover plate (17) on one side close to the interior of the ultrafiltration host (1); and the magnetic blocks are snap-fitted to the ultrafiltration host (1).

Images