Blood purification conversion pipeline structure

Abstract

The utility model relates to the technical field of blood purification pipeline conversion, in particular to a blood purification conversion pipeline structure. Comprising a plasma separator and a three-way pipeline, the three-way pipeline comprises a main catheter, a first auxiliary tube and a second auxiliary tube, the upper end of the plasma separator is fixedly connected with the first auxiliary tube, and the end, away from the main catheter, of the second auxiliary tube is fixedly connected with the upper end of a blood filter; the surface of the plasma separator and the surface of the blood filter are fixedly connected with the same waste liquid pipe, the surface of the bottom end of the plasma separator and the surface of the bottom end of the blood filter are fixedly connected with the same auxiliary three-way pipe, and an adjusting device is arranged on the surface of the first auxiliary pipe and the surface of the second auxiliary pipe and comprises a fixing plate. The surface of the fixing plate slidably penetrates through the first auxiliary pipe and the second auxiliary pipe. The blood purification switching pipeline structure has the advantage that infusion regulation and control can be conveniently and quickly carried out on the three-way pipeline connected with the upper end of the plasma separator.

Description

Technical Field

[0001] This utility model relates to the field of blood purification pipeline conversion technology, and in particular to a blood purification conversion pipeline structure. Background Technology

[0002] Blood purification involves drawing blood out of the body, circulating it through an extracorporeal blood purification device to remove toxic and harmful substances, and then returning the purified blood to the body. It is a common blood purification therapy used to treat various diseases for which conventional treatments are ineffective, and it is quite common in daily life.

[0003] Existing technologies, such as the utility model patent with publication number CN214260197U, disclose an improved tubing for a blood purification machine. This patent includes an inlet device, a first filter device, a second filter device, and an outlet device. The first end of the inlet device is connected to the patient's blood collection end, and the second end of the inlet device is connected to the inlet end of the first filter device. The outlet end of the first filter device is connected to the inlet end of the second filter device. The outlet end of the second filter device is connected to the first end of the outlet device, and the second end of the outlet device is connected to the patient's bleeding end. This design allows the tubing to be adapted to different blood purification machines according to the needs of patients and medical staff, and to perform plasma adsorption / plasma perfusion / plasma exchange treatment modes as needed, achieving mutual conversion between plasma adsorption / plasma perfusion and plasma exchange treatment modes. The structure is clear and the operation is convenient, greatly improving the work efficiency of medical staff, reducing medical costs, and alleviating the economic burden on patients.

[0004] The inventors discovered in daily use that, during the operation of blood purification equipment, the upper end of the plasma separator needs to be connected via a T-connector, and multiple filters are then connected via the T-connector. During the operation of the T-connector, it is inconvenient to adjust and open / close the various pipes within the T-connector. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in the operation of blood purification equipment, the upper end of the plasma separator needs to be connected to a three-way pipe, and multiple filters are then connected to the three-way pipe. During the operation of the three-way pipe, it is inconvenient to adjust and open / close the various pipes in the three-way pipe.

[0006] To solve the above technical problems, this utility model provides a blood purification conversion pipeline structure, including: a plasma separator and a three-way pipe. The three-way pipe includes a main pipe, a first auxiliary pipe, and a second auxiliary pipe. The upper end of the plasma separator is fixedly connected to the first auxiliary pipe, and the end of the second auxiliary pipe away from the main pipe is fixedly connected to the upper end of the blood filter. The plasma separator and the blood filter are fixedly connected to the same waste liquid pipe. The plasma separator and the bottom surface of the blood filter are fixedly connected to the same auxiliary three-way pipe. Adjustment devices are provided on the surfaces of the first auxiliary pipe and the second auxiliary pipe. The adjustment device includes a fixing plate. The surface of the fixed plate slides through the first and second auxiliary tubes. Slider blocks are fixedly connected to both sides of the surface of the fixed plate. The same positioning plate is slidably connected to the side of the two sliders that are close to each other. Positioning holes are opened on both sides of the positioning plate. The positioning holes include a tightening end and an expanding end. The inner walls of the two positioning holes slide through the first and second auxiliary tubes respectively. A fixed frame is fixedly connected to the bottom side wall of the fixed plate. A limit frame is rotatably connected to the inner wall of the fixed frame. The cross-section of the limit frame is "L" shaped. A limit hole is opened on the surface of the short arm end of the limit frame. The inner wall of the limit hole slides through the arc surface of the main tube.

[0007] The aforementioned components achieve the following effect: During the operation of the blood separator and the connected three-way pipeline, the infusion control of the first and second auxiliary tubes in the three-way pipeline is required, so that the solution in the main tube of the entire three-way pipeline can be delivered to the plasma separator and the blood filter respectively. At this time, the positioning plate on the surface of the fixed plate is moved, allowing the positioning plate to slide along the slider on the surface of the fixed plate. When it is necessary to close the first auxiliary tube, simply move the positioning plate towards the second auxiliary tube, so that the positioning hole on one side of the positioning plate engages with the first auxiliary tube. When it is necessary to open or close the second auxiliary tube, simply move it in the opposite direction. When it is necessary to open or close the main tube of the entire three-way pipeline, rotate the limiting frame in the fixing bracket at the bottom of the fixed plate, so that the limiting hole on the surface of the limiting frame engages with the main tube, thereby effectively and conveniently opening and closing the entire three-way pipeline.

[0008] Preferably, friction grooves are formed on both sides of the positioning plate, and a number of anti-slip patterns are formed on the inner wall of each friction groove.

[0009] The effect achieved by the above components is that the position of the positioning plate can be easily adjusted by using the friction grooves on both sides of the positioning plate.

[0010] Preferably, the inner wall of the fixing frame is fitted with a coil spring, and the two ends of the coil spring are fixedly connected to the fixing frame and the limiting frame, respectively.

[0011] The effect achieved by the above components is that when the limiting frame is engaged and limited with the main tube, the torsional force generated by the coil spring on the inner wall of the fixing frame can protect and compress the position of the main tube.

[0012] Preferably, a connecting frame is fixedly connected to the surface of the positioning plate, a screw is threaded through the surface of the connecting frame, and a compression pad is rotatably connected to the screw near the slider, the surface of the compression pad abutting against the surface of the slider.

[0013] The effect achieved by the above components is as follows: after sliding in the position of the positioning plate, the screw on the surface of the connecting frame is rotated, so that the compression pad at one end of the screw is pressed against the side wall of the slider, thereby fixing and limiting the position of the entire positioning plate.

[0014] Preferably, an auxiliary device is provided at the position of the waste liquid pipe corresponding to the upper arc surface of the plasma separator. The auxiliary device includes a fixing frame, the inner wall of which is fixedly connected to the arc surface of the plasma separator. A fixing ring is fixedly connected to the arc surface of one end of the waste liquid pipe. Three elastic plates are uniformly fixedly connected to the surface of the fixing ring. The cross-section of the three elastic plates is barbed. The surface of the elastic plates is engaged with the inner wall of the fixing frame. Several springs are fixedly connected to the inner wall of the fixing ring. The upper ends of the several springs are fixedly connected to the same compression ring. The surface of the compression ring abuts against the arc surface of the plasma separator.

[0015] The effect achieved by the above components is as follows: After the waste liquid tube has been used for a long time, it is necessary to replace and fix the waste liquid tube to the plasma separator. At this time, the fixing ring on the surface of the waste liquid tube is inserted into the fixing ring on the surface of the plasma separator, and the elastic plate fixed on the surface of the fixing ring is snapped into the fixing frame. During this process, the tension generated by the spring on the inner wall of the fixing ring moves the position of the squeezing ring, thereby squeezing and fixing the squeezing ring to the arc surface of the plasma separator, thus effectively and conveniently replacing and fixing the entire waste liquid tube.

[0016] Preferably, the inner wall of the spring is slidably connected with a telescopic rod, and the two ends of the telescopic rod are fixedly connected to the inner wall of the fixed ring and the compression ring, respectively.

[0017] The effect achieved by the above components is to prevent the spring from deforming when it is compressed and fixed, and to provide protection through the telescopic rod.

[0018] Preferably, a guide tube is fixedly connected to one end of the waste liquid pipe near the plasma separator, and the cross-section of the guide tube is conical.

[0019] The effect achieved by the above components is that the guide tube with a pointed cone shape can be used to facilitate the connection and fixation between the waste liquid tube and the plasma separator.

[0020] Preferably, a sealing ring, which is a rubber ring, is fixedly connected to one end of the arc surface of the waste liquid pipe near the guide pipe.

[0021] The effect achieved by the above-mentioned components is that when the waste liquid tube is inserted and fixed to the plasma separator, the sealing performance can be increased by the sealing ring fixed to the arc surface of the waste liquid tube.

[0022] Compared with related technologies, the blood purification conversion pipeline structure provided by this utility model has the following beneficial effects:

[0023] This utility model provides a blood purification conversion pipeline structure. During the operation of the blood separator and the connected three-way pipeline, the infusion control of the first and second auxiliary tubes in the three-way pipeline is required. This allows the solution in the main tube of the entire three-way pipeline to be delivered to the plasma separator and the blood filter respectively. At this time, the positioning plate on the surface of the fixed plate is moved, allowing the positioning plate to slide along the slider on the surface of the fixed plate. When the first auxiliary tube needs to be closed, simply move the positioning plate towards the second auxiliary tube, allowing the positioning hole on one side of the positioning plate to engage with the first auxiliary tube. When the second auxiliary tube needs to be opened or closed, simply move it in the opposite direction. When the main tube of the entire three-way pipeline needs to be opened or closed, rotate the limiting frame in the fixing bracket at the bottom of the fixed plate, allowing the limiting hole on the surface of the limiting frame to engage with the main tube. This effectively and conveniently allows for the opening and closing of the entire three-way pipeline. Through the operation of the adjustment device, convenient infusion control of the three-way pipeline connected to the upper end of the plasma separator is achieved, effectively and conveniently enabling the entire blood purification conversion operation.

[0024] After prolonged use, the waste liquid tube needs to be replaced and secured to the plasma separator. This is done by inserting the retaining ring on the surface of the waste liquid tube into the retaining ring on the surface of the plasma separator. The elastic plate on the retaining ring then engages with the retaining frame. During this process, the tension generated by the spring on the inner wall of the retaining ring moves the squeezing ring, causing it to press against the arc surface of the plasma separator, thus effectively and conveniently replacing and securing the entire waste liquid tube. By operating the auxiliary device, the connection between the waste liquid tube and the plasma separator is limited, facilitating quick insertion and removal of the pipes. Attached Figure Description

[0025] Figure 1 A schematic diagram of a blood purification conversion pipeline structure provided by this utility model;

[0026] Figure 2 for Figure 1 The diagram shows the structure of the regulating device.

[0027] Figure 3 for Figure 2 The enlarged structural diagram at point A is shown below;

[0028] Figure 4 for Figure 2 A partial structural schematic diagram of the adjustment device is shown;

[0029] Figure 5 for Figure 1 The diagram shows the structure of the auxiliary device.

[0030] Figure 6 for Figure 5 The diagram shows the disassembled structure of the auxiliary device.

[0031] Figure 7 for Figure 5 The diagram shows a cross-sectional structure of the auxiliary device.

[0032] Numbered in the diagram: 1. Plasma separator; 2. Blood filter; 3. T-junction pipe; 31. Main pipe; 32. First auxiliary pipe; 33. Second auxiliary pipe; 4. Adjustment device; 401. Fixing plate; 402. Positioning plate; 403. Slider; 404. Positioning hole; 405. Friction groove; 406. Limiting frame; 407. Limiting hole; 408. Fixing frame; 409. Coil spring; 410. Connecting frame; 411. Screw; 412. Squeezing pad; 5. Auxiliary device; 51. Fixing ring; 52. Fixing frame; 53. Elastic plate; 54. Guide pipe; 55. Sealing ring; 56. Spring; 57. Telescopic rod; 58. Squeezing ring; 6. Waste liquid pipe; 7. Auxiliary tee pipe. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0035] Please see Figures 1 to 7This utility model provides a blood purification conversion pipeline structure, including: a plasma separator 1 and a three-way pipe 3. The three-way pipe 3 includes a main pipe 31, a first auxiliary pipe 32 and a second auxiliary pipe 33. The upper end of the plasma separator 1 is fixedly connected to the first auxiliary pipe 32, and the end of the second auxiliary pipe 33 away from the main pipe 31 is fixedly connected to the upper end of the blood filter 2. The plasma separator 1 and the blood filter 2 are fixedly connected to the same waste liquid pipe 6. The plasma separator 1 and the blood filter 2 are fixedly connected to the same auxiliary three-way pipe 7 at their bottom ends. The surfaces of the first auxiliary pipe 32 and the second auxiliary pipe 33 are provided with adjustment devices 4. The upper arc surface of the plasma separator 1 is provided with an auxiliary device 5 corresponding to the position of the waste liquid pipe 6.

[0036] In the embodiments of this utility model, please refer to Figure 2 , Figure 3 and Figure 4 The adjusting device 4 includes a fixed plate 401, the surface of which slides through the first auxiliary tube 32 and the second auxiliary tube 33. Slider blocks 403 are fixedly connected to both sides of the fixed plate 401. A common positioning plate 402 is slidably connected to the side of the two sliders 403 closest to each other. Positioning holes 404 are provided on both sides of the positioning plate 402, each including a tightening end and an expanding end. The inner walls of the two positioning holes 404 slide through the first auxiliary tube 32 and the second auxiliary tube 33, respectively. A fixed frame 408 is fixedly connected to the bottom side wall of the fixed plate 401. A limit frame 406 is rotatably connected to the inner wall of the fixed frame 408. The limit frame 406 has an "L" shaped cross-section. The positioning plate 402 has a limiting hole 407 on the short arm end surface of the limiting frame 406. The inner wall of the limiting hole 407 slides through the arc surface of the main guide tube 31. Friction grooves 405 are provided on both sides of the positioning plate 402. Several anti-slip textures are provided on the inner wall of the friction grooves 405. A coil spring 409 is sleeved on the inner wall of the fixing frame 408. The two ends of the coil spring 409 are fixedly connected to the fixing frame 408 and the limiting frame 406 respectively. A connecting frame 410 is fixedly connected to the surface of the positioning plate 402. A screw 411 is threaded through the surface of the connecting frame 410. A compression pad 412 is rotatably connected to the screw 411 near the slider 403. The surface of the compression pad 412 abuts against the surface of the slider 403.

[0037] In the embodiments of this utility model, please refer to Figure 5 , Figure 6 and Figure 7The auxiliary device 5 includes a fixed frame 52, the inner wall of which is fixedly connected to the arc surface of the plasma separator 1. A fixed ring 51 is fixedly connected to the arc surface of one end of the waste liquid pipe 6. Three elastic plates 53 are evenly fixedly connected to the surface of the fixed ring 51. The cross-section of the three elastic plates 53 is hook-shaped. The surface of the elastic plates 53 is engaged with the inner wall of the fixed frame 52. Several springs 56 are fixedly connected to the inner wall of the fixed ring 51. The upper ends of the several springs 56 are fixedly connected to the same compression ring 58. The surface of the compression ring 58 abuts against the arc surface of the plasma separator 1. Telescopic rods 57 are slidably connected to the inner walls of the springs 56. The two ends of the telescopic rods 57 are fixedly connected to the inner wall of the fixed ring 51 and the compression ring 58, respectively. A guide tube 54 is fixedly connected to the surface of the waste liquid pipe 6 near the plasma separator 1. The cross-section of the guide tube 54 is conical. A sealing ring 55 is fixedly connected to the arc surface of the waste liquid pipe 6 near the guide tube 54. The sealing ring 55 is a rubber ring.

[0038] The working principle of the blood purification conversion pipeline structure provided by this utility model is as follows: During the operation of the blood separator and the connected three-way pipeline 3, it is necessary to regulate the infusion by adjusting the first auxiliary pipe 32 and the second auxiliary pipe 33 in the three-way pipeline 3, so that the solution in the main pipe 31 of the entire three-way pipeline 3 can be delivered to the plasma separator 1 and the blood filter 2 respectively. At this time, the positioning plate 402 on the surface of the fixed plate 401 is moved, so that the positioning plate 402 slides along the slider 403 on the surface of the fixed plate 401. When it is necessary to close the first auxiliary pipe 32, simply move the positioning plate 402 towards the second auxiliary pipe 33, so that the positioning plate 402 can be closed. The positioning hole 404 on one side of the positioning plate 402 is engaged and fixed with the first auxiliary tube 32. When the second auxiliary tube 33 needs to be opened or closed, it can be moved in the opposite direction. When the main tube 31 in the entire three-way pipe 3 needs to be opened or closed, the limiting bracket 406 in the fixing bracket 408 at the bottom of the fixing plate 401 is rotated so that the limiting hole 407 on the surface of the limiting bracket 406 is engaged and fixed with the main tube 31. This allows for convenient opening and closing of the entire three-way pipe 3, enabling convenient infusion control of the three-way pipe 3 connected to the upper end of the plasma separator 1 and convenient operation of the entire blood purification conversion.

[0039] After prolonged use, the waste liquid pipe 6 needs to be replaced and fixed to the plasma separator 1. At this time, the fixing ring 51 on the surface of the waste liquid pipe 6 is inserted into the fixing ring 51 on the surface of the plasma separator 1, and the elastic plate 53 fixed on the surface of the fixing ring 51 is snapped into the fixing frame 52. During this process, the tension generated by the spring 56 on the inner wall of the fixing ring 51 moves the position of the squeezing ring 58, thereby squeezing and fixing the squeezing ring 58 to the arc surface of the plasma separator 1. This effectively and conveniently replaces and fixes the entire waste liquid pipe 6, achieving the limitation between the waste liquid pipe 6 and the plasma separator 1, and facilitating quick insertion and removal of the pipes.

[0040] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A blood purification conversion line structure, characterized by, include: The plasma separator (1) and the three-way pipe (3) are provided. The three-way pipe (3) includes a main pipe (31), a first auxiliary pipe (32), and a second auxiliary pipe (33). The upper end of the plasma separator (1) is fixedly connected to the first auxiliary pipe (32). The end of the second auxiliary pipe (33) away from the main pipe (31) is fixedly connected to the upper end of the blood filter (2). The plasma separator (1) and the blood filter (2) are fixedly connected to the same waste liquid pipe (6). The plasma separator (1) and the blood filter (2) are fixedly connected to the same auxiliary three-way pipe (7) at their bottom ends. The surfaces of the first auxiliary pipe (32) and the second auxiliary pipe (33) are provided with adjustment devices (4). The adjustment device (4) includes a fixing plate (401). The surface of the fixing plate (401) slides through the first auxiliary pipe (32) and the second auxiliary pipe (33). Both sides of the surface of the fixed plate (401) are fixedly connected to sliders (403). The two sliders (403) are slidably connected to the same positioning plate (402) on the side close to each other. Positioning holes (404) are opened on both sides of the positioning plate (402). The positioning holes (404) include a tightening end and an expanding end. The inner walls of the two positioning holes (404) are slidably connected to the first auxiliary tube (32) and the second auxiliary tube (33) respectively. A fixed frame (408) is fixedly connected to the bottom side wall of the fixed plate (401). A limit frame (406) is rotatably connected to the inner wall of the fixed frame (408). The cross section of the limit frame (406) is "L" shaped. A limit hole (407) is opened on the short arm end surface of the limit frame (406). The inner wall of the limit hole (407) is slidably connected to the arc surface of the main tube (31).

2. The blood purification conversion line structure according to claim 1, characterized by, The positioning plate (402) has friction grooves (405) on both sides, and the inner wall of the friction grooves (405) has a number of anti-slip patterns.

3. The blood purification conversion line set of claim 1, wherein, The inner wall of the fixing frame (408) is fitted with a coil spring (409), and the two ends of the coil spring (409) are fixedly connected to the fixing frame (408) and the limiting frame (406) respectively.

4. The blood purification conversion line set of claim 1, wherein, The positioning plate (402) is fixedly connected to a connecting frame (410), and a screw (411) is threaded through the surface of the connecting frame (410). A compression pad (412) is rotatably connected to the screw (411) near the slider (403), and the surface of the compression pad (412) abuts against the surface of the slider (403).

5. The blood purification conversion line set of claim 1, wherein, An auxiliary device (5) is provided on the upper arc surface of the plasma separator (1) corresponding to the position of the waste liquid pipe (6). The auxiliary device (5) includes a fixing frame (52). The inner wall of the fixing frame (52) is fixedly connected to the arc surface of the plasma separator (1). A fixing ring (51) is fixedly connected to the arc surface of one end of the waste liquid pipe (6). Three elastic plates (53) are evenly fixedly connected to the surface of the fixing ring (51). The cross-section of the three elastic plates (53) is hook-shaped. The surface of the elastic plates (53) is engaged with the inner wall of the fixing frame (52). Several springs (56) are fixedly connected to the inner wall of the fixing ring (51). The upper ends of the several springs (56) are fixedly connected to the same compression ring (58). The surface of the compression ring (58) abuts against the arc surface of the plasma separator (1).

6. The blood purification conversion line set of claim 5, wherein, The inner wall of the spring (56) is slidably connected with a telescopic rod (57), and the two ends of the telescopic rod (57) are fixedly connected to the inner wall of the fixed ring (51) and the compression ring (58) respectively.

7. The blood purification conversion line set of claim 5, wherein, The waste liquid pipe (6) is fixedly connected to a guide tube (54) on one end surface near the plasma separator (1), and the cross section of the guide tube (54) is conical.

8. The blood purification conversion line set of claim 5, wherein, A sealing ring (55) is fixedly connected to one end of the arc surface of the waste liquid pipe (6) near the guide pipe (54), and the sealing ring (55) is a rubber ring.

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