Clinical hemodialysis device

By using polygonal dialysis membrane and internal partition structure in the hemodialysis device, the contact area between blood and dialysate is increased, and the problem of low efficiency of blood toxin removal in the prior art is solved, and a more efficient hemodialysis effect is achieved .

CN119455163AInactive Publication Date: 2025-02-18DONGYING JINCAN MEDICAL EQUIPMENT CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202510066047.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2025-02-18
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In existing hemodialysis devices, the contact surface between blood and dialysate is limited to a rectangular plane where the dialysis membrane is located, resulting in a reduced efficiency of toxin removal in the blood and even inability to completely remove it.

Method used

Design a clinical hemodialysis device, adopting polygonal dialysis membrane and inner partition structure, to increase the contact area between blood and dialysate. Through the polygonal design of dialysis membrane and inner partition, the blood is hollow polygonal distribution, and improves the Material exchange efficiency.

Benefits of technology

By increasing the contact area between blood and dialysate, the removal effect of toxins in the blood is significantly improved, avoiding incomplete removal of toxins in the blood, and improving the dialysis effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119455163A_ABST
    Figure CN119455163A_ABST
Patent Text Reader

Abstract

The invention belongs to the technical field of medical equipment, and particularly relates to a clinical hemodialysis device which comprises a shell and further comprises a dialysis assembly, the dialysis assembly comprises a dialysis membrane and an inner partition plate, the inner partition plate is located on the inner side of the dialysis membrane, the dialysis membrane is located on the inner side of the shell, and the dialysis membrane and the inner partition plate are both polygonal. According to the dialysis assembly, the contact area of blood and dialysate is increased through the dialysis membrane and the inner partition plate, so that the dialysate can be better subjected to material exchange with the blood, and the removal effect of toxins in the blood is improved. The dialysis membrane and the inner partition plate are both polygonal, so that when blood is injected between the dialysis membrane and the inner partition plate, the blood is distributed in a hollow polygonal shape, the contact area between the blood and dialysate can be increased through the polygonal shape, the dialysate can better absorb toxins in the blood, and meanwhile, due to the hollow distribution of the blood, the blood can be effectively absorbed by the dialysate. The situation that blood in the middle cannot interact with dialysate is avoided, and then the blood dialysis effect is guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention belongs to the technical field of medical equipment, in particular to a clinical hemodialysis device. Background Art

[0002] Hemodialysis (HD), abbreviated as hemodialysis, also commonly known as artificial kidney or dialysis, is a type of blood purification technology. Hemodialysis mainly uses the principle of semipermeable membrane to remove harmful substances, metabolic waste and excess electrolytes from the body through diffusion, convection, adsorption and ultrafiltration, so as to purify the blood and correct the water, electrolyte and acid-base balance.

[0003] An application document with publication number CN113198058A discloses a nephrology hemodialysis device. The nephrology hemodialysis device can heat the blood after dialyzation to a temperature acceptable to the human body through a heating box, a temperature sensor, an electric heating rod, a temperature controller and a serpentine tube, which is beneficial to improving the comfort of patients. Whether the waste liquid contains blood can be detected through a blood leakage detection box, a light source and a photoresistor.

[0004] In the current existing technology, the supporting structure of the dialyzer usually adopts a cylindrical cavity structure, and the dialyzer membrane is fixed on a rectangular structure in the middle of the cylindrical cavity. In this way, the cylindrical cavity of the dialyzer can be divided into two semi-arc cavities, and blood and dialysate are directly injected into the corresponding semi-arc cavity. However, since the contact surface between the blood and the dialysate is limited to a rectangular plane where the dialyzer membrane is located, it is difficult for the blood and dialysate far away from the dialyzer membrane to exchange substances in a timely manner, which may lead to a decrease in the efficiency of removing toxins from the blood, or even incomplete removal of toxins from the blood.

[0005] To this end, the present invention provides a clinical hemodialysis device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a clinical hemodialysis device described in the present invention includes an outer shell and a dialysis component, the dialysis component includes a dialysis membrane and an inner partition, the inner partition is located on the inner side of the dialysis membrane, the dialysis membrane is located on the inner side of the outer shell, the dialysis membrane and the inner partition are both polygonal, the dialysis component increases the contact area between blood and dialysate through the dialysis membrane and the inner partition, so that the dialysate can better exchange substances with the blood, thereby improving the effect of removing toxins from the blood.

[0008] Preferably, a top sealing plate and a bottom sealing plate are fixedly installed on the top and bottom of the dialysis membrane, respectively, and the top sealing plate and the bottom sealing plate are fixedly connected to the top and the bottom of the inner partition, respectively, a blood flow cavity is formed between the dialysis membrane and the inner partition, a dialysate flow cavity is formed between the outer shell and the dialysis membrane, a blood inlet pipe is rotatably installed on the inner wall of the outer shell, one end of the blood inlet pipe is connected to a blood flow pipe, the inner wall of the blood flow pipe is connected to multiple groups of blood injection pipes, and one end of the blood injection pipe away from the blood flow pipe passes through the inner partition and extends to the inner side of the blood flow cavity.

[0009] Preferably, a driving motor is arranged above the housing, a driving gear is fixedly mounted on the output shaft of the driving motor, a rotating gear is fixedly mounted on the outer wall of the blood inlet pipe, and teeth of the rotating gear mesh with teeth of the driving gear.

[0010] Preferably, a sealing rotating disk is rotatably installed on the inner wall of the bottom of the shell, a connecting water pipe is fixedly installed on the inner wall of the sealing rotating disk, one end of the connecting water pipe passes through the bottom sealing plate and a water passing seat is fixedly installed, water holes are evenly opened on the outer wall of the water passing seat, the water passing seat is fixedly installed between the bottom sealing plate and the blood flow pipe, a heating pipe is fixedly installed on the outer wall of the blood flow pipe, a heating chamber is formed on the inner side of the inner partition, and the water passing seat and the heating pipe are both located on the inner side of the heating chamber.

[0011] Preferably, a plurality of rotating shafts are rotatably mounted on the inner wall of the shell, the rotating shafts are located on the inner side of the dialysate flow chamber, a lifting gear is fixedly mounted on the outer wall of the rotating shaft, the teeth of the lifting gear are meshed with the teeth of the top sealing plate, and a group of fan blades are fixedly mounted on the outer wall of each rotating shaft, and the directions of each adjacent group of fan blades are opposite.

[0012] Preferably, a plurality of guide plates are provided on the inner side of the shell, and the guide plates are located on the inner side of the dialysate flow cavity.

[0013] Preferably, a plurality of rotating seats are fixedly installed on the inner wall of the outer shell, a positioning shaft is rotatably installed on the inner wall of the rotating seat, the outer walls of the plurality of positioning shafts are rotatably connected to the inner walls of a plurality of guide plates respectively, an elastic member is fixedly installed on the outer wall of the guide plate, one end of the elastic member away from the guide plate is fixedly connected to the inner wall of the outer shell, an extension block is fixedly installed on the outer wall of the guide plate, and a plurality of toggle blocks are fixedly installed on the outer wall of the bottom sealing plate.

[0014] Preferably, a plurality of blood discharge pipes are fixedly installed on the inner wall of the bottom sealing plate, one end of the blood discharge pipe is located at the bottom of the blood flow chamber, a blood outlet pipe is connected between the end of the blood discharge pipe away from the bottom sealing plate, and the outer wall of the blood outlet pipe is fixedly connected to the inner wall of the sealing rotating disk.

[0015] Preferably, one end of the blood inlet pipe and the blood outlet pipe are fixedly installed with a rotating connector, the outer wall of the connecting water pipe is fixedly installed with a sealing valve, and the top inner wall and the bottom inner wall of the outer shell are respectively fixedly installed with a dialysate inlet pipe and a dialysate outlet pipe.

[0016] Preferably, a mounting seat is fixedly mounted on the top of the shell, the drive motor is fixedly mounted on the inner wall of the mounting seat, and an outer frame is fixedly mounted on the outer wall of the shell.

[0017] The beneficial effects of the present invention are as follows: 1. A clinical hemodialysis device described in the present invention improves the effect of removing toxins from the blood by setting structures such as a dialysis membrane and an inner partition. The dialysis membrane and the inner partition are both polygonal, so when blood is injected between the dialysis membrane and the inner partition, the blood will be distributed in a hollow polygon. The polygonal setting can increase the contact area between the blood and the dialysate, so that the dialysate can better absorb toxins in the blood. At the same time, due to the hollow distribution of the blood, the situation where the blood in the middle cannot interact with the dialysate is avoided, thereby ensuring the dialysis effect of the blood.

[0018] 2. The clinical hemodialysis device described in the present invention increases the comfort of patients by providing structures such as a heating chamber and a heating tube. Water is injected into the interior of the heating chamber by connecting a water pipe, and then the water is heated by the heating tube. The heated water can heat the blood entering the device, so that the blood is maintained at an acceptable temperature for the human body, thereby improving the comfort of patients during treatment. Since the inner partition is polygonal, the hot water and blood have sufficient contact area, thereby improving the heating efficiency of the device, allowing the blood to quickly reach a suitable temperature, thereby ensuring the normal progress of the dialysis work.

[0019] 3. The clinical hemodialysis device described in the present invention increases the dialysis effect of the device by setting structures such as fan blades, guide plates and drive motors. When dialysis is performed, the fan blades, guide plates and other structures are moved under the action of the drive motor, so that the dialysate flows, the dialysate can better exchange substances with the blood, and the dialysate can better carry away toxins in the blood, thereby improving the exchange efficiency between the dialysate and the blood. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a cross-sectional view of the housing structure of the present invention; Figure 3 is a cross-sectional view of the structure of the housing of the present invention from another viewing angle; Figure 4 It is a schematic structural diagram of the dialysis membrane of the present invention; Figure 5 It is a schematic diagram of the structure of the inner partition of the present invention; Figure 6 It is a schematic diagram of the structure of the blood flow conduit of the present invention; Figure 7 It is a structural schematic diagram of the bottom sealing plate of the present invention; Figure 8 It is a schematic diagram of the structure of the rotating shaft of the present invention; Fig. 9 It is a structural schematic diagram of the guide plate of the present invention; In the figure: 1. outer shell; 2. dialysis membrane; 3. inner partition; 4. top sealing plate; 5. bottom sealing plate; 6. blood flow chamber; 7. dialysate flow chamber; 8. blood inlet pipeline; 9. blood flow pipeline; 10. blood injection pipeline; 11. driving motor; 12. driving gear; 13. rotating gear; 14. sealing rotating disk; 15. connecting water pipe; 16. water through seat; 17. water through hole; 18. heating pipe; 19. heating chamber; 20. rotating shaft; 21. lifting gear; 22. fan blade; 23. guide plate; 24. rotating seat; 25. positioning shaft; 26. elastic member; 27. extension block; 28. toggle block; 29. ​​blood discharge pipeline; 30. blood outlet pipeline; 31. rotating connector; 32. sealing valve; 33. dialysate inlet pipeline; 34. dialysate outlet pipeline; 35. mounting seat; 36. outer frame. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] like Figures 1 to 6As shown, a clinical hemodialysis device according to an embodiment of the present invention comprises a housing 1 and a dialysis assembly, wherein the dialysis assembly comprises a dialysis membrane 2 and an inner partition 3, wherein the inner partition 3 is located on the inner side of the dialysis membrane 2, and the dialysis membrane 2 is located on the inner side of the housing 1. The dialysis membrane 2 and the inner partition 3 are both polygonal. The dialysis assembly increases the contact area between blood and dialysate through the dialysis membrane 2 and the inner partition 3, so that the dialysate can better exchange substances with the blood, thereby improving the effect of removing toxins from the blood. When the dialysis is performed, the dialysate will The blood is injected between the dialysis membrane 2 and the outer shell 1, and the blood is injected between the dialysis membrane 2 and the inner partition 3. Since the dialysis membrane 2 and the inner partition 3 are both polygonal, when the blood is injected between the dialysis membrane 2 and the inner partition 3, the blood will be distributed in a hollow polygon. The polygonal setting can increase the contact area between the blood and the dialysate, so that the dialysate can better absorb toxins in the blood. At the same time, due to the hollow distribution of the blood, the situation in which the blood in the middle cannot interact with the dialysate is avoided, thereby ensuring the dialysis effect of the blood.

[0024] like Figures 1 to 6 As shown, a top sealing plate 4 and a bottom sealing plate 5 are fixedly installed on the top and bottom of the dialysis membrane 2, respectively. The top sealing plate 4 and the bottom sealing plate 5 are fixedly connected to the top and the bottom of the inner partition 3, respectively. A blood flow cavity 6 is formed between the dialysis membrane 2 and the inner partition 3, and a dialysate flow cavity 7 is formed between the outer shell 1 and the dialysis membrane 2. A blood inlet pipe 8 is rotatably installed on the inner wall of the outer shell 1. One end of the blood inlet pipe 8 is connected to a blood flow pipe 9. The inner wall of the blood flow pipe 9 is connected to multiple groups of blood injection pipes 10, and the blood injection pipes 10 are far away from the blood flow pipe 9. One end of the inner partition 3 extends through the inner partition 3 to the inner side of the blood flow chamber 6; when working, the patient's blood is injected into the inner side of the blood flow chamber 6 through the blood inlet pipe 8, and the dialysate is injected into the inner side of the dialysate flow chamber 7. The blood flow chamber 6 is sealed by the top sealing plate 4 and the bottom sealing plate 5. The blood flow chamber 6 and the dialysate flow chamber 7 are separated by the dialysate membrane 2. Under the action of the dialysate membrane 2, the dialysate exchanges substances with the blood. The dialysate membrane 2 is polygonal to increase the contact area between the dialysate and the blood, so that the blood and the dialysate can exchange substances in time.

[0025] like Figures 1 to 8As shown, a driving motor 11 is arranged above the shell 1, and a driving gear 12 is fixedly installed on the output shaft of the driving motor 11, and a rotating gear 13 is fixedly installed on the outer wall of the blood inlet pipe 8, and the teeth of the rotating gear 13 are meshed with the teeth of the driving gear 12; when the device performs dialysis work, the driving motor 11 is started, and the driving gear 12 is driven by the driving motor 11 to rotate, and when the driving gear 12 rotates, it will drive the rotating gear 13 to rotate, and when the rotating gear 13 rotates, it will drive the blood inlet pipe 8 to rotate, and under the action of the blood inlet pipe 8, the dialysis component follows the rotation, and through the rotation of the dialysis component, the dialysate can be more fully in contact with the dialysis membrane 2, thereby increasing the treatment effect of the dialysate on the blood, so that the toxins in the blood can be better treated.

[0026] like Figures 1 to 7 As shown, a sealing rotating disk 14 is rotatably installed on the inner wall of the bottom of the shell 1, and a connecting water pipe 15 is fixedly installed on the inner wall of the sealing rotating disk 14. One end of the connecting water pipe 15 passes through the bottom sealing plate 5 and is fixedly installed with a water-passing seat 16. The outer wall of the water-passing seat 16 is evenly provided with water-passing holes 17. The water-passing seat 16 is fixedly installed between the bottom sealing plate 5 and the blood flow pipe 9. A heating pipe 18 is fixedly installed on the outer wall of the blood flow pipe 9. A heating chamber 19 is formed on the inner side of the inner partition 3. The water-passing seat 16 and the heating pipe 18 are both located on the inner side of the heating chamber 19. Before the dialysis work is performed, the water-passing seat 16 is connected to the inner wall of the inner partition 3. Water is transported to the inside of the water-passing seat 16. The water entering the water-passing seat 16 will be discharged through the water-passing hole 17 into the inner side of the heating chamber 19. After the heating chamber 19 is filled with water, the water will be heated by the heating tube 18. After the water is heated, dialysis begins. The heated water can heat the blood entering the device, so that the blood is kept at an acceptable temperature for the human body, thereby improving the comfort of the patient during treatment. Since the inner partition 3 is polygonal, the hot water and the blood have sufficient contact area, thereby improving the heating efficiency of the device, allowing the blood to quickly reach a suitable temperature, thereby ensuring the normal progress of the dialysis work.

[0027] like Figures 1 to 8As shown, a plurality of rotating shafts 20 are rotatably mounted on the inner wall of the housing 1, and the rotating shafts 20 are located on the inner side of the dialysate flow chamber 7. A lifting gear 21 is fixedly mounted on the outer wall of the rotating shaft 20, and the teeth of the lifting gear 21 mesh with the teeth of the top sealing plate 4. A group of fan blades 22 are fixedly mounted on the outer wall of each rotating shaft 20, and the directions of each adjacent group of fan blades 22 are opposite. When the dialysis assembly is driven to rotate under the action of the driving motor 11, the top sealing plate 4 will drive the lifting gear 21 meshed with it to rotate when the dialysis assembly rotates, and the lifting gear 21 will drive the corresponding rotating shaft 20 to rotate when the lifting gear 21 rotates, and the rotating shaft 20 will drive the fan blades 22 to rotate. When the fan blades 22 rotate, the dialysate will move. Since the directions of each adjacent group of fan blades 22 are opposite, the dialysate will form a circulating flow inside the dialysate flow chamber 7, and the dialysate will flow on the surface of the dialysis membrane 2. Through the circulating flow of the dialysate, the dialysate can better take away toxins in the blood, thereby improving the exchange efficiency between the dialysate and the blood.

[0028] like Figures 1 to 9 As shown, a plurality of guide plates 23 are provided on the inner side of the shell 1, and the guide plates 23 are located on the inner side of the dialysate flow chamber 7; when the dialysis assembly rotates, the dialysate will be driven to rotate on the inner side of the shell 1, and during the rotation of the dialysate, the dialysate at the edge close to the inner wall of the shell 1 will interact with the guide plates 23. Since the guide plates 23 are arc-shaped, the dialysate at the edge will move along the guide plates 23 toward the middle of the shell 1 after contacting the guide plates 23, so that the dialysate at the edge can move to the middle to the dialysis membrane 2 to exchange with the blood.

[0029] like Figures 1 to 9 As shown, the inner wall of the housing 1 is fixedly mounted with a plurality of rotating seats 24, the inner wall of the rotating seat 24 is rotatably mounted with a positioning shaft 25, the outer walls of the plurality of positioning shafts 25 are rotatably connected to the inner walls of the plurality of guide plates 23, the outer wall of the guide plate 23 is fixedly mounted with an elastic member 26, one end of the elastic member 26 away from the guide plate 23 is fixedly connected to the inner wall of the housing 1, the outer wall of the guide plate 23 is fixedly mounted with an extension block 27, and the outer wall of the bottom sealing plate 5 is fixedly mounted with a plurality of toggle blocks 28; when the dialysis assembly is rotated, When the toggle block 28 moves, the bottom sealing plate 5 will drive the toggle block 28 to rotate. When the toggle block 28 rotates, it will squeeze the extension block 27 to make the guide plate 23 rotate around the positioning axis 25. At this time, the elastic member 26 is in a stressed contraction state. When the toggle block 28 passes over the extension block 27, the elastic member 26 is no longer squeezed. The guide plate 23 will reverse under the action of the elastic member 26. The rotation of the guide plate 23 will move the dialysate and make the dialysate approach the dialysis membrane 2, so that the dialysate can better dialyze the blood.

[0030] like Figures 1 to 7As shown, a plurality of blood discharge pipes 29 are fixedly installed on the inner wall of the bottom sealing plate 5, one end of the blood discharge pipe 29 is located at the bottom of the blood flow chamber 6, and a blood outlet pipe 30 is connected between the end of the blood discharge pipe 29 away from the bottom sealing plate 5, and the outer wall of the blood outlet pipe 30 is fixedly connected to the inner wall of the sealing rotating disk 14; when the blood completes the dialysis work, the blood that has completed the dialysis will be discharged from the multiple blood discharge pipes 29 at the bottom of the blood flow chamber 6, and the blood discharged through the blood discharge pipe 29 will flow into the blood outlet pipe 30 and merge, and the merged blood will be discharged from the device through the blood outlet pipe 30 and return to the patient's body.

[0031] like Figures 1 to 7 As shown, one end of the blood inlet pipe 8 and the blood outlet pipe 30 are fixedly installed with a rotating connector 31, the outer wall of the connecting water pipe 15 is fixedly installed with a sealing valve 32, and the top inner wall and the bottom inner wall of the shell 1 are respectively fixedly installed with a dialysate inlet pipe 33 and a dialysate outlet pipe 34; the external pipes are connected to the blood inlet pipe 8 and the blood outlet pipe 30 respectively through the rotating connector 31, ensuring that the blood can circulate without affecting the rotation of the blood inlet pipe 8 and the blood outlet pipe 30, and the sealing valve 32 can seal the connecting water pipe 15. When the water injection work is completed, the sealing valve 32 is closed to prevent the water in the heating chamber 19 from flowing out. When the water change work is required, the sealing valve 32 is opened to discharge the water. Then, new water is injected into the heating chamber 19 through the external pipe, and the dialysate can be injected into the dialysate flow chamber 7 through the dialysate inlet pipe 33. The waste liquid after the dialysis work is completed will be discharged through the dialysate outlet pipe 34.

[0032] like Figure 1 to Figure 2 As shown, a mounting base 35 is fixedly installed on the top of the shell 1, the drive motor 11 is fixedly installed on the inner wall of the mounting base 35, and an outer frame 36 is fixedly installed on the outer wall of the shell 1; the drive motor 11 is fixed by the mounting base 35 to provide a fulcrum for the drive motor 11 so that the drive motor 11 can provide power for the operation of the device, and the shell 1 is fixed by the outer frame 36 to fix the entire device in a suitable position to facilitate the use of the device.

[0033] Working principle: When the device is in use, the dialysate enters the dialysate flow chamber 7 through the dialysate inlet pipe 33, and the patient's blood enters the blood flow pipe 9 through the blood inlet pipe 8. The blood entering the blood flow pipe 9 enters the blood injection pipe 10 along the blood flow pipe 9, and finally the blood flows into the blood flow chamber 6 under the action of the blood injection pipe 10. The blood flow chamber 6 and the dialysate flow chamber 7 are separated by the dialysate membrane 2. Under the action of the dialysate membrane 2, the blood and the dialysate exchange substances, thereby removing toxins in the blood. 2 and the inner partition 3 are both polygonal, so the blood flow cavity 6 is also polygonal, so that the blood will be distributed in a hollow polygonal state after entering the device. The hollow polygonal distribution increases the contact area between the blood and the dialysate, so that the dialysate can better remove toxins in the blood and improve the dialysis effect. After the dialysis work is completed, the dialysate will be discharged through the dialysate outlet pipe 34, and the blood will enter the blood outlet pipe 30 through the blood discharge pipe 29 and merge. The merged blood will be discharged from the device through the blood outlet pipe 30 and return to the patient's body.

[0034] When the blood and the dialysate interact, the driving motor 11 will work, and the driving motor 11 will drive the driving gear 12 to rotate. When the driving gear 12 rotates, it will drive the rotating gear 13 to rotate. When the rotating gear 13 rotates, it will drive the blood inlet pipe 8 to rotate. When the blood inlet pipe 8 rotates, it will cause the dialysis component to rotate. Through the rotation of the dialysis component, the dialysate is more fully in contact with the dialysis membrane 2, increasing the treatment effect of the dialysate on the blood, thereby improving the treatment effect of toxins in the blood.

[0035] When the dialysis assembly is driven to rotate under the action of the driving motor 11, the top sealing plate 4 will drive the lifting gear 21 meshing with it to rotate, and the lifting gear 21 will drive the corresponding rotating shaft 20 to rotate when rotating, and the rotating shaft 20 will drive the fan blades 22 to rotate. The fan blades 22 will drive the dialysate to move when rotating. Since the directions of each adjacent group of fan blades 22 are opposite, the dialysate will circulate inside the dialysate flow chamber 7. Through the circulation of the dialysate, the dialysate can better carry away toxins in the blood, thereby improving the exchange efficiency between the dialysate and the blood.

[0036] When the dialysis component rotates, it will drive the dialysate to rotate. During the rotation of the dialysate, the dialysate located at the edge close to the inner wall of the shell 1 will interact with the guide plate 23. Since the guide plate 23 is arc-shaped, the dialysate at the edge will move along the guide plate 23 to the middle part of the shell 1 after contacting the guide plate 23, so that the dialysate at the edge can move to the dialysis membrane 2 to exchange with the blood. At the same time, when the dialysis component rotates, it will drive the toggle block 28 to rotate. When the toggle block 28 rotates, it will squeeze the extension block 27 to rotate the guide plate 23 around the positioning axis 25. At this time, the elastic member 26 is in a contracted state. When the toggle block 28 passes over the extension block 27, the guide plate 23 will reverse under the action of the elastic member 26. The dialysate will be moved by the rotation of the guide plate 23, so that the dialysate is close to the dialysis membrane 2, so that the dialysate can better dialyze the blood.

[0037] Before dialysis, water is injected into the heating chamber 19 through the connecting water pipe 15, and then the water is heated by the heating pipe 18. After the water is heated, when dialysis is performed, the heated water can heat the blood entering the device, so that the blood is maintained at an acceptable temperature for the human body, thereby improving the comfort of the patient during treatment. Since the inner partition 3 is polygonal, the contact area between the hot water and the blood can be increased, thereby improving the heating efficiency of the device and allowing the blood to quickly reach a suitable temperature.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A clinical hemodialysis device, comprising a housing (1), characterized in that: The invention also comprises a dialysis assembly, wherein the dialysis assembly comprises a dialysis membrane (2) and an inner partition (3), wherein the inner partition (3) is located on the inner side of the dialysis membrane (2), and the dialysis membrane (2) is located on the inner side of the outer shell (1), wherein the dialysis membrane (2) and the inner partition (3) are both polygonal, and the dialysis assembly increases the contact area between blood and dialysis fluid through the dialysis membrane (2) and the inner partition (3), so that the dialysis fluid can better exchange substances with the blood, thereby improving the effect of removing toxins from the blood.

2. A clinical hemodialysis device according to claim 1, characterized in that: A top sealing plate (4) and a bottom sealing plate (5) are fixedly mounted on the top and bottom of the dialysis membrane (2), respectively. The top sealing plate (4) and the bottom sealing plate (5) are fixedly connected to the top and bottom of the inner partition (3), respectively. A blood flow chamber (6) is formed between the dialysis membrane (2) and the inner partition (3). A dialysate flow chamber (7) is formed between the outer shell (1) and the dialysis membrane (2). A blood inlet pipe (8) is rotatably mounted on the inner wall of the outer shell (1). One end of the blood inlet pipe (8) is connected to a blood flow pipe (9). The inner wall of the blood flow pipe (9) is connected to a plurality of blood injection pipes (10). One end of the blood injection pipe (10) away from the blood flow pipe (9) passes through the inner partition (3) and extends to the inner side of the blood flow chamber (6).

3. A clinical hemodialysis device according to claim 2, characterized in that: A driving motor (11) is arranged above the housing (1), a driving gear (12) is fixedly mounted on the output shaft of the driving motor (11), a rotating gear (13) is fixedly mounted on the outer wall of the blood inlet pipe (8), and the teeth of the rotating gear (13) mesh with the teeth of the driving gear (12).

4. A clinical hemodialysis device according to claim 3, characterized in that: A sealing rotating disk (14) is rotatably mounted on the inner wall of the bottom of the shell (1), a connecting water pipe (15) is fixedly mounted on the inner wall of the sealing rotating disk (14), one end of the connecting water pipe (15) passes through the bottom sealing plate (5) and is fixedly mounted with a water passing seat (16), the outer wall of the water passing seat (16) is evenly provided with water passing holes (17), the water passing seat (16) is fixedly mounted between the bottom sealing plate (5) and the blood flow pipe (9), a heating pipe (18) is fixedly mounted on the outer wall of the blood flow pipe (9), a heating chamber (19) is formed on the inner side of the inner partition plate (3), and the water passing seat (16) and the heating pipe (18) are both located on the inner side of the heating chamber (19).

5. A clinical hemodialysis device according to claim 4, characterized in that: A plurality of rotating shafts (20) are rotatably mounted on the inner wall of the housing (1), the rotating shafts (20) being located on the inner side of the dialysate flow chamber (7), and a lifting gear (21) is fixedly mounted on the outer wall of the rotating shaft (20), the teeth of the lifting gear (21) meshing with the teeth of the top sealing plate (4), and a group of fan blades (22) are fixedly mounted on the outer wall of each rotating shaft (20), and the directions of adjacent groups of fan blades (22) are opposite.

6. A clinical hemodialysis device according to claim 5, characterized in that: A plurality of guide plates (23) are arranged on the inner side of the housing (1), and the guide plates (23) are located on the inner side of the dialysate flow chamber (7).

7. A clinical hemodialysis device according to claim 6, characterized in that: A plurality of rotating seats (24) are fixedly mounted on the inner wall of the housing (1), a positioning shaft (25) is rotatably mounted on the inner wall of the rotating seat (24), the outer walls of the plurality of positioning shafts (25) are rotatably connected to the inner walls of a plurality of guide plates (23), an elastic member (26) is fixedly mounted on the outer wall of the guide plate (23), one end of the elastic member (26) away from the guide plate (23) is fixedly connected to the inner wall of the housing (1), an extension block (27) is fixedly mounted on the outer wall of the guide plate (23), and a plurality of toggle blocks (28) are fixedly mounted on the outer wall of the bottom sealing plate (5).

8. A clinical hemodialysis device according to claim 7, characterized in that: A plurality of blood discharge pipes (29) are fixedly mounted on the inner wall of the bottom sealing plate (5), one end of the blood discharge pipe (29) is located at the bottom of the blood flow chamber (6), and a blood outlet pipe (30) is connected between the end of the blood discharge pipe (29) away from the bottom sealing plate (5), and the outer wall of the blood outlet pipe (30) is fixedly connected to the inner wall of the sealing rotating disk (14).

9. A clinical hemodialysis device according to claim 8, characterized in that: A rotating connector (31) is fixedly mounted on one end of each of the blood inlet pipe (8) and the blood outlet pipe (30); a sealing valve (32) is fixedly mounted on the outer wall of the connecting water pipe (15); and a dialysate inlet pipe (33) and a dialysate outlet pipe (34) are fixedly mounted on the top inner wall and the bottom inner wall of the housing (1), respectively.

10. A clinical hemodialysis device according to claim 9, characterized in that: A mounting seat (35) is fixedly mounted on the top of the housing (1), the drive motor (11) is fixedly mounted on the inner wall of the mounting seat (35), and an outer frame (36) is fixedly mounted on the outer wall of the housing (1).

Citation Information

Patent Citations

  • Hemodialysis device for nephrology department

    CN113198058A