Plasma filtration anti-blocking self-cleaning device

Abstract

The application discloses a plasma filtration anti-blocking self-cleaning device, and belongs to the field of plasma filtration. The device comprises a blood filter support and a blood filter, and further comprises a sleeve, wherein the blood filter is arranged in the sleeve; two first connecting members are arranged at the upper and lower ends of the blood filter support; two second connecting members are arranged at the upper and lower ends of the sleeve; and a driving mechanism is arranged to drive the sleeve to rotate. When the blood filter is blocked, the sleeve can be driven to rotate by 180 degrees through the driving mechanism. At this time, the two first connecting members connected by the two second connecting members are connected with a cleaning input pipe and a cleaning output pipe, so that the self-cleaning effect of the blood filter in the sleeve is achieved. The blocking of the blood filter can be quickly and simply solved, and the blood filter does not need to be disassembled and cleaned, so that a large amount of time and labor are saved, the anti-blocking self-cleaning effect of the blood filter is achieved, waste is reduced, and the device has high practicability.

Description

Technical Field

[0001] This invention belongs to the field of plasma filtration technology, and more specifically, relates to a plasma filtration anti-clogging self-cleaning device. Background Technology

[0002] Plasma filtration involves passing blood through a filter in an external circuit of a blood filtration machine. Under filtration pressure, a large amount of liquid and solutes are filtered out, forming ultrafiltrate. Simultaneously, an electrolyte solution similar in composition to plasma, known as replacement fluid, is added to purify the blood. This medical device is often used to treat patients with conditions such as kidney failure, filtering out waste products and excess water from the blood and then returning the clean blood to the patient to maintain normal bodily functions.

[0003] When using a blood filter, some people may have high blood lipids, thick blood, or blood clots, and the filter may also filter out waste products from the blood. This can cause blockages in the blood filter during filtration. In such cases, the blood filter usually needs to be disassembled for cleaning, which is cumbersome, time-consuming, and laborious, affecting the patient's treatment. It is also troublesome to directly replace the blood filter, which is costly, wasteful, and has poor results.

[0004] Therefore, it is necessary to provide a plasma filtration anti-clogging self-cleaning device to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a blood plasma filtration anti-clogging self-cleaning device to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A plasma filtration anti-clogging self-cleaning device includes a blood filter holder and a blood filter, and further includes:

[0008] The casing is detachably mounted on the blood filter support, and the blood filter is installed inside the casing;

[0009] The blood filter holder is provided with two first connectors at both the upper and lower ends. The two first connectors at the upper end are respectively connected to the blood inlet tube and the clean inlet tube; the two first connectors at the lower end are respectively connected to the blood outlet tube and the clean outlet tube.

[0010] Two second connectors are respectively disposed at the upper and lower ends of the housing, and are connected to the first connectors at the corresponding positions;

[0011] A drive mechanism, mounted on the blood filter support, is used to drive the housing to rotate; when the housing is rotated 180 degrees, the two second connectors on the housing are reversed in position and connected to the first connectors at corresponding positions.

[0012] As a further aspect of the present invention: the housing is symmetrically provided with mounting seats at the front and rear, the mounting seats having mounting openings, and the driving mechanism includes:

[0013] Two drive components are provided and symmetrically arranged at the front and rear ends of the blood filter bracket;

[0014] A telescopic component is provided at the output end of the drive component, and the telescopic end of the telescopic component is provided with a mounting rod that is adapted to the mounting port.

[0015] As a further aspect of the present invention: a connecting rod is provided on the mounting rod, a push plate is provided at the end of the connecting rod, and two staggered touch plates are provided at both the upper and lower ends of the blood filter bracket.

[0016] As a further aspect of the present invention: the first connector includes:

[0017] A first connecting tube is provided on the blood filter support, and a first sleeve is movably sleeved on the outer wall of the first connecting tube;

[0018] A connecting component is disposed inside the first connecting pipe to enable the opening and closing of the channel inside the first connecting pipe.

[0019] As a further aspect of the present invention: the second connector includes:

[0020] A second connecting pipe is provided on the housing, and a second sleeve is movably sleeved on the outer wall of the second connecting pipe;

[0021] The second connector also contains the communication component, which is used to open and close the channel inside the second connecting pipe;

[0022] A transmission component, located on the second connecting pipe, is used to drive the second sleeve to move up and down.

[0023] As a further embodiment of the present invention: the connecting component includes a circular seat, an opening, two inner grooves, two sealing plates, a plurality of first elastic elements, and two traction ropes. The inner grooves are opened in the circular seat and communicate with the opening. The two sealing plates are slidably disposed in the two inner grooves respectively. The first elastic elements are disposed between the inner wall of the inner groove and the sealing plate. One end of the traction rope is connected to the sealing plate, and the other end is connected to the first sleeve or the second sleeve.

[0024] As a further aspect of the present invention: a groove is provided on the outer wall of the first connecting pipe, a slider is slidably disposed in the groove, the outer end of the slider is connected to the first sleeve, and a second elastic element is disposed between the slider and the inner wall of the groove.

[0025] As a further aspect of the present invention: the transmission assembly includes:

[0026] A fixing seat is provided on the second connecting pipe, and the fixing seat has three interconnected first air chambers and second air chambers.

[0027] A piston ring plate is slidably disposed in the second air chamber. The piston ring plate is provided with a movable ring plate, and the other end of the movable ring plate is connected to the second sleeve.

[0028] The first air chamber is equipped with a linkage component that drives the piston ring plate to move up and down.

[0029] As a further aspect of the present invention: the linkage component includes a piston disc slidably disposed in the first air chamber, the piston disc being provided with a linkage rod and a third elastic element, the other end of the third elastic element being connected to the inner wall of the first air chamber, and the other end of the linkage rod movably penetrating through the outer wall of the fixed seat and extending to the outside.

[0030] As a further aspect of the present invention, it also includes:

[0031] A protective plate is provided on the inner wall of the second sleeve, and an annular groove is formed on the protective plate;

[0032] The pressure chamber and the outer groove are opened inside the first connecting pipe. An air film is provided at the opening of the pressure chamber, and a pressure plate is slidably provided on the inner wall of the pressure chamber.

[0033] The pressure rod has one end connected to the pressure plate and the other end movably extends into the outer groove and is provided with a pressure block. A fourth elastic element is provided between the pressure block and the inner wall of the outer groove.

[0034] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0035] 1. In this solution, when the blood filter becomes clogged, the drive mechanism rotates the housing 180 degrees. The two second connectors on the housing first disconnect from the two first connectors. Then, the rotated two second connectors connect to the first connectors in their inverted positions. At this point, the two first connectors connected to the two second connectors are respectively connected to the cleaning inlet pipe and the cleaning outlet pipe. Since the blood filter inside the housing is now inverted, cleaning fluid flows through the cleaning inlet pipe to clean the blood filter inside the housing. Impurities inside the blood filter are flushed downwards and discharged from the first connector at the cleaning outlet pipe, thus achieving a self-cleaning effect for the blood filter inside the housing. This solution quickly and easily resolves blood filter clogging, avoiding the need to disassemble and clean the blood filter. It is simple to operate, saves significant time and labor, and does not delay patient treatment, achieving a self-cleaning effect against clogging. It also greatly reduces the need for blood filter replacement, significantly lowering costs and reducing waste, making it highly practical.

[0036] 2. In this solution, after the drive mechanism drives the housing and the second connecting pipe on it to rotate into position, the second connecting piece rotates and automatically connects with the first connecting piece. At the same time, the second connecting pipe and the first connecting pipe are automatically connected. The operation is quick and simple, requiring no additional equipment or control, and the effect is good.

[0037] 3. In this solution, the second sleeve will move together with the protective plate. Eventually, the protective plate will move to fit against the inner wall of the first connecting pipe. The protective plate will gradually squeeze the pressure block, causing the gas film to expand. The gas film will eventually enter the annular groove of the protective plate, thereby improving the sealing performance between the protective plate and the inner wall of the first connecting pipe, and ultimately improving the sealing performance of the connection between the first and second connecting pipes, greatly reducing liquid leakage and achieving good results. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 This is a schematic diagram of the casing structure of the present invention;

[0040] Figure 3 This is a partial structural diagram of the first connector of the present invention;

[0041] Figure 4 This is a partial cross-sectional view of the first connector of the present invention;

[0042] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle;

[0043] Figure 6 for Figure 4 Enlarged structural diagram at point B;

[0044] Figure 7 This is a schematic diagram of the second connector structure of the present invention;

[0045] Figure 8 This is a cross-sectional view of the second connector of the present invention;

[0046] Figure 9 for Figure 8 Enlarged structural diagram at point C;

[0047] Figure 10 This is a cross-sectional structural diagram of the first and second connectors of the present invention when they are connected.

[0048] Figure 11 for Figure 10 Enlarged structural diagram at point D;

[0049] Figure 12 for Figure 10 Enlarged structural diagram at point E;

[0050] Figure 13 for Figure 10 Enlarged structural diagram at point F.

[0051] Explanation of the labels in the diagram:

[0052] 1. Blood filter support; 2. Housing; 3. First connector; 31. First connecting pipe; 32. First sleeve; 33. Connecting assembly; 331. Round seat; 332. Opening; 333. Inner groove; 334. Sealing plate; 335. First elastic element; 336. Traction rope; 4. Second connector; 41. Second connecting pipe; 42. Second sleeve; 43. Transmission assembly; 431. Fixed seat; 432. First air chamber; 433. Second air chamber; 434. Piston ring plate; 435. Moving ring plate ; 436. Linkage component; 4361. Piston disc; 4362. Linkage rod; 4363. Third elastic element; 5. Drive mechanism; 51. Drive component; 52. Telescopic component; 53. Mounting rod; 6. Mounting seat; 7. Mounting port; 8. Connecting rod; 9. Push plate; 10. Touch plate; 11. Slide groove; 12. Slider; 13. Second elastic element; 14. Protective plate; 15. Annular groove; 16. Pressure chamber; 17. Air film; 18. Pressure plate; 19. Pressure rod; 20. Pressure block; 21. Fourth elastic element. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] Please see Figure 1-3 , Figure 7 , Figure 10 A plasma filtration anti-clogging self-cleaning device includes a blood filter support 1 and a blood filter, and further includes: a housing 2, detachably mounted on the blood filter support 1, with the blood filter installed inside the housing 2; two first connectors 3 are provided at both the upper and lower ends of the blood filter support 1, the two first connectors 3 at the upper end being connected to the blood input tube and the clean input tube respectively; the two first connectors 3 at the lower end being connected to the blood output tube and the clean output tube respectively; two second connectors 4 are respectively provided at the upper and lower ends of the housing 2, and are connected to the first connectors 3 at the corresponding positions; a drive mechanism 5 is provided on the blood filter support 1, used to drive the housing 2 to rotate; when the housing 2 is rotated 180 degrees, the two second connectors 4 on the housing 2 are reversed in position and are connected to the first connectors 3 at the corresponding positions respectively.

[0055] In use, the blood filter holder 1 is fixed to the blood filter machine. The blood filter is installed inside the housing 2, which can be disassembled into two sections. After installing the blood filter inside, the two sections of housing 2 are then assembled together. The housing 2 can then be connected horizontally to the drive mechanism 5. The drive mechanism 5 then rotates the housing 2 to a vertical position. At this time, the second connecting pieces 4 at the upper and lower ends of the housing 2 automatically connect to the corresponding first connecting pieces 3. Figure 1 At this time, the two first connectors 3 connected to the second connector 4 are respectively connected to the blood input pipe and the blood output pipe. That is, at this time, the blood input pipe enters the blood filter inside the casing 2 through the first connector 3 and the upper second connector 4. The filtered blood then enters the lower first connector 3 from the bottom second connector 4 and is finally transported out from the blood output pipe, thus completing the blood filtration operation. This cycle is repeated.

[0056] When a blockage is found in the blood filter inside the casing 2, such as when there is a significant difference in blood flow before and after the blood filter inside the casing 2, the casing 2 can be rotated 180 degrees by the drive mechanism 5. The two second connecting pieces 4 on the casing 2 are first disconnected from the two first connecting pieces 3. After rotating 180 degrees, the two second connecting pieces 4 on the casing 2 are reversed and connected to the first connecting pieces 3 in their reversed positions. That is, the second connecting piece 4 that was originally at the bottom moves to the top and connects to the first connecting piece 3 at the cleaning input pipe, and the second connecting piece 4 that was originally at the top moves to the bottom and connects to the first connecting piece 3 at the cleaning output pipe. At this time, the two first connecting pieces 3 connected to the two second connecting pieces 4 are connected to the cleaning input pipe and the cleaning output pipe, respectively. Since the blood filter inside the casing 2 is now flipped over, the cleaning input pipe is filled with cleaning fluid to clean the blood filter inside the casing 2. The impurities in the blood filter will be flushed downwards and discharged from the first connecting piece 3 at the cleaning output pipe, thus achieving a self-cleaning effect for the blood filter inside the casing 2. It can quickly and easily solve the problem of blood filter blockage, and avoid the need to disassemble and clean the blood filter. It is easy to operate, saves a lot of time and labor, and will not delay the patient's treatment. It achieves the anti-clogging and self-cleaning effect of blood filter; at the same time, it greatly reduces the replacement of blood filter, greatly reduces costs and waste, and is highly practical.

[0057] In this embodiment, preferably, please refer to [reference needed]. Figure 1-2 The housing 2 is symmetrically equipped with mounting seats 6 at its front and rear, and mounting seats 6 have mounting openings 7. The driving mechanism 5 includes: two driving components 51, symmetrically arranged at the front and rear ends of the blood filter support 1, which are servo motors; and a telescopic component 52, located at the output end of the driving components 51, with a mounting rod 53 adapted to the mounting opening 7 at its telescopic end. The telescopic component 52 is an electric telescopic rod. When installing the housing 2, the telescopic component 52 drives the mounting rod 53 to extend outward, allowing the mounting rod 53 to be inserted into the mounting opening 7 of the mounting seat 6, thus enabling the housing 2 to be installed. The driving component 51 can drive the telescopic component 52, the mounting rod 53, and the housing 2 to rotate.

[0058] In this embodiment, preferably, please refer to [reference needed]. Figure 1 A connecting rod 8 is provided on the mounting rod 53, and a push plate 9 is provided at the end of the connecting rod 8. Two staggered touch plates 10 are provided at the upper and lower ends of the blood filter bracket 1. The telescopic member 52 drives the mounting rod 53 to move in the horizontal direction, and the mounting rod 53 will drive the connecting rod 8 and the push plate 9 to move together. The push plate 9 and the touch plate 10 will cooperate with the second connecting member 4.

[0059] In this embodiment, preferably, please refer to [reference needed]. Figure 3-4 and Figure 10The first connecting member 3 includes: a first connecting tube 31, disposed on the blood filter support 1, with a first sleeve 32 movably sleeved on the outer wall of the first connecting tube 31; and a connecting component 33, disposed inside the first connecting tube 31, used to open and close the channel inside the first connecting tube 31. When the first sleeve 32 moves up and down, it cooperates with the connecting component 33 to open and close the channel inside the first connecting tube 31.

[0060] In this embodiment, preferably, please refer to [reference needed]. Figure 7-8 and Figure 10 The second connecting member 4 includes: a second connecting pipe 41, disposed on the housing 2, with a second sleeve 42 movably fitted onto the outer wall of the second connecting pipe 41; a communicating component 33 is also disposed inside the second connecting member 4 to realize the opening and closing of the channel inside the second connecting pipe 41; and a transmission component 43, disposed on the second connecting pipe 41, to drive the second sleeve 42 to move up and down. The transmission component 43 drives the second sleeve 42 to move up and down, and the second sleeve 42, while moving up and down, cooperates with the communicating component 33 to realize the opening and closing of the channel inside the second connecting pipe 41.

[0061] In this embodiment, preferably, please refer to [reference needed]. Figure 3-4 , Figure 7-8 and Figure 10-11 The connecting component 33 includes a circular seat 331, an opening 332, two inner grooves 333, two sealing plates 334, a plurality of first elastic elements 335, and two traction ropes 336. The inner grooves 333 are opened in the circular seat 331 and communicate with the opening 332. The two sealing plates 334 are slidably disposed in the two inner grooves 333 respectively. The first elastic elements 335 are disposed between the inner wall of the inner groove 333 and the sealing plates 334. One end of the traction rope 336 is connected to the sealing plate 334, and the other end is connected to the first sleeve 32 or the second sleeve 42. The first elastic element 335 in this application is a spring.

[0062] by Figure 10For example, in the first connector 3, when the first sleeve 32 moves upward, it tightens the traction rope 336. The traction rope 336 drives the sealing plate 334 to move towards the inner groove 333 and compresses the first elastic element 335. At this time, the sealing plates 334 on both sides move away from each other, that is, the two sealing plates 334 open, that is, the opening 332 of the round seat 331 is connected vertically. At this time, the first connecting pipe 31 in the first connector 3 is connected. When the first sleeve 32 moves downward, it loosens the traction rope 336. The rebound force of the first elastic element 335 drives the sealing plate 334 to move outward from the inner groove 333. Finally, the two sealing plates 334 come together, thus closing the first connecting pipe 31. Similarly, in the second connector 4, when the second sleeve 42 moves upward, it will tighten the traction rope 336, and the traction rope 336 will drive the sealing plate 334 to move towards the inner groove 333 in the same way as above, so as to realize the connection in the second connecting pipe 41. When the second sleeve 42 moves downward, it will loosen the traction rope 336, thus realizing the closure of the second connecting pipe 41.

[0063] In this embodiment, preferably, please refer to [reference needed]. Figure 4-5 , Figure 10 and Figure 12 The outer wall of the first connecting pipe 31 is provided with a groove 11, and a slider 12 is slidably disposed in the groove 11. The outer end of the slider 12 is connected to the first sleeve 32. A second elastic element 13 is disposed between the slider 12 and the inner wall of the groove 11. In this application, the second elastic element 13 is a spring. Figure 4-5 For example, when the first sleeve 32 is moved upward by an external force, the first sleeve 32 will drive the slider 12 to move upward along the groove 11 and stretch the second elastic element 13; when the first sleeve 32 loses the external force, the rebound force of the second elastic element 13 will drive the first sleeve 32 to move downward and return to the initial position.

[0064] In this embodiment, preferably, please refer to [reference needed]. Figure 1-5 , Figure 7-8 and Figure 10-11 The transmission assembly 43 includes: a fixed base 431, disposed on the second connecting pipe 41, with three interconnected first air chambers 432 and second air chambers 433 inside the fixed base 431; a piston ring plate 434, slidably disposed in the second air chamber 433, with a movable ring plate 435 on the piston ring plate 434, the other end of the movable ring plate 435 being connected to the second sleeve 42; and a linkage component 436 for driving the piston ring plate 434 to move up and down inside the first air chamber 432. The linkage component 436 includes a piston disc 4361 slidably disposed in the first air chamber 432, with a linkage rod 4362 and a third elastic element 4363 on the piston disc 4361. The other end of the third elastic element 4363 is connected to the inner wall of the first air chamber 432, and the other end of the linkage rod 4362 movably passes through the outer wall of the fixed base 431 and extends to the outside. In this application, the third elastic element 4363 is a spring.

[0065] by Figure 10 Taking the connection of the first connecting member 3 and the second connecting member 4 as an example, after the mounting rod 53 is inserted into the mounting port 7, the mounting rod 53 moves forward a certain distance. The mounting rod 53 will drive the connecting rod 8 and the push plate 9 to move. The push plate 9 will squeeze the linkage rod 4362 at this position. At this time, the linkage rod 4362 will drive the piston plate 4361 to move and perform the first step of compression on the air in the first air chamber 432, so that the gas is forced into the second air chamber 433. At this time, the gas in the first air chamber 432 is compressed and will drive the piston ring plate 434 to move upward along the second air chamber 433. The piston ring plate 434 will drive the moving ring plate 435 and the second sleeve 42 to move upward a part. Then, after the drive mechanism 5 drives the sleeve 2 to rotate into a vertical state, the second connecting member 4 and the first connecting member 3 are in corresponding positions. At this time, the touch plate 10 at the corresponding position on the blood filter bracket 1 will squeeze the linkage rod 4362 at its corresponding position. Figure 1 At this point, the linkage rod 4362 will drive the piston disc 4361 to perform a second step of compression on the air in the first air chamber 432. Simultaneously, the piston ring plate 434 will drive the moving ring plate 435 and the second sleeve 42 to continue moving upwards. The second sleeve 42 will move and fit over the outside of the first connecting pipe 31, and the second sleeve 42 will also drive the first sleeve 32 to move upwards. Figure 10 As can be seen from the above, the openings 332 in both the second connecting pipe 41 and the first connecting pipe 31 are open, meaning that both the second connecting pipe 41 and the first connecting pipe 31 are in a connected state. This achieves the automatic connection between the second connecting piece 4 and the first connecting piece 3 after rotation, and also automatically achieves the connection between the second connecting pipe 41 and the first connecting pipe 31. The operation is quick and simple, requiring no additional equipment or control, and the effect is good.

[0066] When cleaning the rotating sleeve 2 is required, the mounting rod 53 is first retracted a certain distance. At this point, the push plate 9 no longer presses against the linkage rod 4362 at this position. With the cooperation of the transmission component 43, the second sleeve 42 will move down a certain distance. At this point, the second sleeve 42 is no longer fitted outside the first connecting tube 31, thus not affecting the overall rotation of the sleeve 2 and the second connecting piece 4 on it. At the same time, the staggered arrangement of the two second connecting pieces 4 and the staggered arrangement of the touch plate 10 ensures that the rotation of the sleeve 2 is not interfered with. After the sleeve 2 and the second connecting piece 4 have rotated away, the touch plate 10 no longer presses against the linkage rod 4362 at the corresponding position. At this point, the connecting component 33 inside the second connecting tube 41 will close the second connecting tube 41, and the connecting component 33 inside the first connecting tube 31 will close the first connecting tube 31. This does not affect the subsequent rotation of the sleeve 2 and prevents the liquid from flowing out of the blood input tube or cleaning input tube connected to the first connecting tube 31, resulting in good practical effect.

[0067] In this embodiment, preferably, please refer to [reference needed]. Figure 3-4 , Figure 6 , Figure 8-10 and Figure 13 It also includes: a protective plate 14, which is disposed on the inner wall of the second sleeve 42, and an annular groove 15 is provided on the protective plate 14; a pressure cavity 16 and an outer groove, which are opened inside the first connecting pipe 31, and an air film 17 is provided at the opening of the pressure cavity 16, and a pressure plate 18 is slidably provided on the inner wall of the pressure cavity 16; a pressure rod 19, one end of which is connected to the pressure plate 18, and the other end of which is movably inserted into the outer groove and provided with a pressure block 20, and a fourth elastic element 21 is provided between the pressure block 20 and the inner wall of the outer groove. The fourth elastic element 21 in this application is a spring.

[0068] by Figure 10 For example, when the second sleeve 42 moves upward, it will move the shield 14 together. Eventually, the shield 14 will move against the inner wall of the first connecting pipe 31, and the shield 14 will gradually squeeze the pressure block 20. The pressure block 20 will move towards the outer groove and compress the fourth elastic element 21. The pressure block 20 will drive the pressure rod 19 and the pressure plate 18 to move. The pressure plate 18 will squeeze the gas in the pressure chamber 16. The gas will enter the gas film 17 and cause the gas film 17 to expand. The gas film 17 will eventually enter the annular groove 15 of the shield 14, thereby improving the sealing performance between the shield 14 and the inner wall of the first connecting pipe 31, and ultimately improving the sealing performance of the connection between the first connecting pipe 31 and the second connecting pipe 41, greatly reducing liquid leakage and achieving good performance. When the second sleeve 42 moves downward and moves the shield 14 out of the first connecting pipe 31, the rebound force of the fourth elastic element 21 will move the pressure block 20 back to the initial position, and the gas film 17 will also return to its initial state.

[0069] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0070] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blood plasma filtration anti-clogging self-cleaning device, comprising a blood filter holder (1) and a blood filter, characterized in that, Also includes: The housing (2) is detachably mounted on the blood filter support (1), and the blood filter is installed inside the housing (2); The blood filter support (1) is provided with two first connectors (3) at both the upper and lower ends. The two first connectors (3) at the upper end are respectively connected to the blood input tube and the clean input tube; the two first connectors (3) at the lower end are respectively connected to the blood output tube and the clean output tube. Two second connectors (4) are respectively disposed at the upper and lower ends of the housing (2) and are connected to the first connectors (3) at the corresponding positions; A drive mechanism (5) is provided on the blood filter support (1) and is used to drive the housing (2) to rotate; Driven by the drive mechanism (5), the casing (2) rotates 180 degrees. The two second connectors (4) on the casing (2) are first disconnected from the two first connectors (3). After rotating to 180 degrees, the two second connectors (4) on the casing (2) are reversed and connected to the first connectors (3) at the reversed position. That is, the second connectors (4) that were originally at the bottom are moved to the top and connected to the first connectors (3) at the cleaning input pipe. The second connectors (4) that were originally at the top are moved to the bottom and connected to the first connectors (3) at the cleaning output pipe. That is, at this time, the two second connectors (4) are connected to the cleaning input pipe and the cleaning output pipe respectively. The cleaning input pipe is filled with cleaning fluid to clean the blood filter inside the casing (2). The impurities in the blood filter will be flushed down and discharged from the first connectors (3) at the cleaning output pipe.

2. The plasma filtration anti-clogging self-cleaning device according to claim 1, characterized in that, The housing (2) is symmetrically provided with mounting bases (6) at the front and back, and the mounting bases (6) are provided with mounting openings (7). The driving mechanism (5) includes: Two drive components (51) are provided and symmetrically arranged at the front and rear ends of the blood filter support (1); The telescopic component (52) is located at the output end of the drive component (51), and the telescopic end of the telescopic component (52) is provided with a mounting rod (53) that is adapted to the mounting port (7).

3. The plasma filtration anti-clogging self-cleaning device according to claim 2, characterized in that, The mounting rod (53) is provided with a connecting rod (8), and the end of the connecting rod (8) is provided with a push plate (9). The upper and lower ends of the blood filter bracket (1) are provided with two staggered touch plates (10).

4. The plasma filtration anti-clogging self-cleaning device according to claim 1, characterized in that, The first connector (3) includes: The first connecting tube (31) is provided on the blood filter support (1), and the outer wall of the first connecting tube (31) is movably sleeved with a first sleeve (32). A connecting component (33) is disposed inside the first connecting pipe (31) and is used to realize the opening and closing of the channel inside the first connecting pipe (31).

5. The plasma filtration anti-clogging self-cleaning device according to claim 4, characterized in that, The second connector (4) includes: The second connecting pipe (41) is provided on the housing (2), and the outer wall of the second connecting pipe (41) is movably fitted with the second sleeve (42). The second connector (4) is also provided with the connecting component (33) for opening and closing the channel inside the second connecting pipe (41); The transmission assembly (43) is located on the second connecting pipe (41) and is used to drive the second sleeve (42) to move up and down.

6. The plasma filtration anti-clogging self-cleaning device according to claim 5, characterized in that, The connecting component (33) includes a round seat (331), an opening (332), two inner grooves (333), two sealing plates (334), a plurality of first elastic elements (335), and two traction ropes (336). The inner grooves (333) are opened in the round seat (331) and communicate with the opening (332). The two sealing plates (334) are slidably disposed in the two inner grooves (333). The first elastic elements (335) are disposed between the inner wall of the inner groove (333) and the sealing plate (334). One end of the traction rope (336) is connected to the sealing plate (334), and the other end is connected to the first sleeve (32) or the second sleeve (42).

7. The plasma filtration anti-clogging self-cleaning device according to claim 4, characterized in that, The outer wall of the first connecting pipe (31) is provided with a sliding groove (11), and a slider (12) is slidably arranged in the sliding groove (11). The outer end of the slider (12) is connected to the first sleeve (32), and a second elastic element (13) is provided between the slider (12) and the inner wall of the sliding groove (11).

8. The plasma filtration anti-clogging self-cleaning device according to claim 5, characterized in that, The transmission assembly (43) includes: A fixing seat (431) is provided on the second connecting pipe (41), and the fixing seat (431) has three interconnected first air chambers (432) and second air chambers (433). A piston ring plate (434) is slidably disposed in the second air chamber (433). A movable ring plate (435) is provided on the piston ring plate (434). The other end of the movable ring plate (435) is connected to the second sleeve (42). The first air chamber (432) is provided with a linkage component (436) that drives the piston ring plate (434) to move up and down.

9. The plasma filtration anti-clogging self-cleaning device according to claim 8, characterized in that, The linkage component (436) includes a piston disc (4361) slidably disposed in the first air chamber (432). The piston disc (4361) is provided with a linkage rod (4362) and a third elastic element (4363). The other end of the third elastic element (4363) is connected to the inner wall of the first air chamber (432), and the other end of the linkage rod (4362) movably passes through the outer wall of the fixed seat (431) and extends to the outside.

10. A plasma filtration anti-clogging self-cleaning device according to claim 5, characterized in that, Also includes: A protective plate (14) is provided on the inner wall of the second sleeve (42), and an annular groove (15) is provided on the protective plate (14). The pressure chamber (16) and the outer groove are opened inside the first connecting pipe (31). An air film (17) is provided at the opening of the pressure chamber (16), and a pressure plate (18) is slidably provided on the inner wall of the pressure chamber (16). The pressure rod (19) is connected at one end to the pressure plate (18) and at the other end extends into the outer groove and is provided with a pressure block (20). A fourth elastic element (21) is provided between the pressure block (20) and the inner wall of the outer groove.

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