Pipeline fixing device for blood purification
By increasing friction through clamping the arc strip and sponge layer and fixing with a spring, combined with the pawl and ratchet for quick clamping and limiting, the problems of blood flow obstruction and cumbersome operation in blood purification tubing fixing devices are solved, achieving efficient and convenient tubing fixing.
Patent Information
- Application Number
- CN202511731065.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-01-02
AI Technical Summary
In existing technologies, blood purification tubing is easily blocked after being compressed by pressure blocks inside the chamber, and the chamber needs to be opened or closed frequently to replace the tubing fixing device, which affects the fixing efficiency.
It adopts a clamping structure, which uses clamping arc strips and sponge layer to increase the friction with the pipeline, and combines the elasticity of springs to fix the pipeline. It also uses pawls and ratchet to achieve quick clamping and limiting, and is equipped with a height adjustment mechanism to adapt to different height requirements.
It effectively avoids blood flow obstruction, improves fixation efficiency, simplifies the operation process, and adapts to the needs of medical staff of different heights.
Smart Images

Figure CN121243587A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical care, in particular to a pipeline fixing device for blood purification. BACKGROUND
[0002] Blood purification includes filtration, dialysis, perfusion, replacement, etc. of blood, and uses various instruments such as dialyzers and various catheterization and intubation.
[0003] Referring to a pipeline fixing device for blood purification care (publication number: CN215230874U, publication date: 2021-12-21), the patent solves the problem that the commonly used medical tape and the like are still used to fix the pipeline, the overall use effect and working performance are general, the overall stability is poor, and accidental extubation is prone to occur under the condition that the patient's limbs move, but the pipeline of the patent is easily blocked by the pressing block in the box, and when the pipeline is placed or taken out, the box needs to be frequently opened or closed, which is troublesome and affects the fixing efficiency. To solve the above problems, we propose a pipeline fixing device for blood purification. SUMMARY
[0004] In view of the deficiencies of the prior art, the present application provides a pipeline fixing device for blood purification, which solves the problem that the pipeline is easily blocked by the pressing block in the box, and when the pipeline is placed or taken out, the box needs to be frequently opened or closed, which is troublesome and affects the fixing efficiency.
[0005] To achieve the above purpose, the present application is realized by the following technical scheme: a pipeline fixing device for blood purification, comprising a box, a lifting rod is fixed at the bottom of the box, a square tube is arranged at the bottom end of the lifting rod, the bottom end of the lifting rod penetrates through the square tube and extends into the inside of the square tube, the outer surface of the lifting rod is in sliding connection with the inner surface of the square tube, a bottom plate is fixed at the bottom end of the square tube, an adjusting mechanism is arranged in the inside of the square tube, six pipe grooves are formed in the inside of the box, a pipeline fixing assembly is arranged in the inside of the box, a lifting assembly is arranged at the top of the box to lift the pipeline fixing assembly, a limiting assembly is arranged at the top of the box to limit the lifting assembly, and a moving assembly is arranged at the top of the box. The pipeline fixing assembly comprises a sliding plate slidingly connected between the inner walls of the box, six clamping arcs are fixed at the bottom of the sliding plate, the bottoms of the six clamping arcs penetrate through the pipe grooves and extend into the inside of the pipe grooves, the outer surfaces of the six clamping arcs are in sliding connection with the inner surfaces of the pipe grooves, and a first spring is fixed between the top of the sliding plate and the top of the inner wall of the box.
[0006] Preferably, the lifting assembly comprises a rack fixed on the top of the sliding plate, and a through slot is formed in the top of the box body, and the top end of the rack extends through the through slot and to the outside of the through slot.
[0007] Preferably, a mounting seat is fixed on the top of the box body, and a rotating rod is rotatably connected to the inner surface of the mounting seat, and the two ends of the rotating rod extend through the mounting seat and to the outside of the mounting seat, and a rotating gear is fixed to one end of the rotating rod, the teeth of the rotating gear are engaged with the teeth of the rack, and a first rotating handle is fixed to the other end of the rotating rod.
[0008] Preferably, the moving assembly comprises a horizontal slot formed in the top of the box body, and a screw rod is rotatably connected between the opposite sides of the inner wall of the horizontal slot, and one end of the screw rod extends through the box body and to the outside of the box body, and a second rotating handle is fixed to one end of the screw rod.
[0009] Preferably, a moving block is slidably connected to the inner surface of the horizontal slot, and one end of the screw rod extends through the moving block and to the outside of the moving block.
[0010] Preferably, the outer surface of the screw rod is threadedly connected with the inner surface of the moving block, the top of the moving block extends through the horizontal slot and to the outside of the horizontal slot, and a fixed plate is fixed to one side of the moving block.
[0011] Preferably, the limiting assembly comprises a ratchet fixed to the outer surface of the rotating rod, a connecting plate is fixed to one side of the fixed plate, a pawl is rotatably connected to one side of the fixed plate through a rotating shaft, the pawl is clamped between the adjacent teeth of the ratchet, and a second spring is fixed between one side of the connecting plate and the top of the pawl.
[0012] Preferably, the height adjusting mechanism comprises a movable rod rotatably connected to one side of the square tube, a third rotating handle is fixed to one end of the movable rod, the other end of the movable rod extends through the square tube and to the inside of the square tube, a first bevel gear is fixed to the other end of the movable rod, and a threaded rod is rotatably connected to the bottom of the inner wall of the square tube.
[0013] Preferably, the top end of the threaded rod extends through the lifting rod and to the inside of the lifting rod, the outer surface of the threaded rod is threadedly connected with the inner surface of the lifting rod, a second bevel gear is fixed to the outer surface of the threaded rod, and the first bevel gear is engaged with the second bevel gear.
[0014] Preferably, the number of the first springs is six, the opposite surfaces of the pipe slot and the clamping arc strip are arc surfaces, and are matched with the size of the pipeline, and the inner surfaces of the pipe slot and the clamping arc strip are provided with sponge layers.
[0015] Advantages
[0016] The application provides a pipeline fixing device for blood purification. (1) The pipeline fixing device for blood purification tightly wraps the pipeline by the sponge layer through the friction between the clamping arc and the sponge on the pipe groove and the elastic force of the first spring, so that the pipeline is fixed, the friction between the pipeline and the pipe groove is large, and the pipeline is difficult to move, compared with the method of pressing the pipeline by the pressing block, the pipeline is not directly compacted, the phenomenon of blood not flowing in the pipeline is avoided, the box body does not need to be frequently opened or closed, the fixing efficiency is improved, and the operation is facilitated.
[0017] (2) The pipeline fixing device for blood purification is provided with the moving assembly, so that the quick separation and combination between the pawl and the ratchet wheel are realized, the rotating rod is conveniently rotated, the pipeline is clamped in the pipe groove by the clamping arc, the operation is simple, and the practicality is high.
[0018] (3) The pipeline fixing device for blood purification is provided with the limiting assembly, the rotating rod is limited by the pawl and the ratchet wheel, the rotating rod is prevented from rotating, the pipeline is conveniently inserted into the pipe groove, the height of the device is flexibly and freely adjusted through the height adjusting mechanism, and the device is convenient for medical staffs with different heights to use. DETAILED DESCRIPTION
[0019] Figure 1 It is an external structure perspective view of the application. Figure 2 It is a box body sectional view of the application. Figure 3 It is a front view of the application. Figure 4 It is a front view of the application. Figure 3 It is a local enlarged view of A in the application. Figure 5 It is a local structure plan view of the application. Figure 6 It is a square pipe sectional view of the application. Figure 7 It is a local enlarged view of B in the application. Figure 6
[0020] In the figure: 1, box body; 2, lifting rod; 3, square tube; 4, bottom plate; 5, height adjusting mechanism; 6, pipe groove; 7, pipe fixing assembly; 8, lifting assembly; 9, limiting assembly; 10, moving assembly; 71, sliding plate; 72, clamping arc; 73, first spring; 81, rack; 82, through groove; 83, mounting seat; 84, rotating rod; 85, rotating gear; 86, first rotating handle; 101, horizontal groove; 102, screw rod; 103, second rotating handle; 104, moving block; 105, fixed plate; 91, ratchet; 92, connecting plate; 93, pawl; 94, second spring; 51, movable rod; 52, third rotating handle; 53, first bevel gear; 54, threaded rod; 55, second bevel gear. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0022] The embodiments of the present application provide two technical solutions, specifically including the following embodiments: Embodiment 1
[0023] Please refer to Figures 1-5 A pipe fixing device for blood purification, comprising a box body 1, a lifting rod 2 is fixed at the bottom of the box body 1, the lifting rod 2 is a square rod, a square tube 3 is arranged at the bottom end of the lifting rod 2, the bottom end of the lifting rod 2 penetrates through the square tube 3 and extends to the inside of the square tube 3, the outer surface of the lifting rod 2 is in sliding connection with the inner surface of the square tube 3, a bottom plate 4 is fixed at the bottom end of the square tube 3, a height adjusting mechanism 5 is arranged in the inside of the square tube 3, six pipe grooves 6 are formed in the inside of the box body 1, pipes are placed in the pipe grooves, a pipe fixing assembly 7 is arranged in the inside of the box body 1, a lifting assembly 8 for lifting the pipe fixing assembly 7 is arranged at the top of the box body 1, a limiting assembly 9 for limiting the lifting assembly 8 is further arranged at the top of the box body 1, and a moving assembly 10 is further arranged at the top of the box body 1. The pipe fixing assembly 7 comprises a sliding plate 71 which is in sliding connection between the inner walls of the box body 1, six clamping arcs 72 are fixed at the bottom of the sliding plate 71, the bottoms of the six clamping arcs 72 penetrate through the pipe grooves 6 and extend to the inside of the pipe grooves 6, the outer surfaces of the six clamping arcs 72 are in sliding connection with the inner surfaces of the pipe grooves 6, and a first spring 73 is fixed between the top of the sliding plate 71 and the top of the inner wall of the box body 1.
[0024] The lifting assembly 8 comprises a rack 81 fixed on the top of the sliding plate 71, a through slot 82 is formed in the top of the box 1, the top end of the rack 81 penetrates the through slot 82 and extends to the outside of the through slot 82, and the cooperation of the pipeline fixing assembly 7 and the lifting assembly 8 realizes clamping of the pipeline and facilitates fixing of the pipeline.
[0025] The top of the box 1 is fixed with a mounting seat 83, the inner surface of the mounting seat 83 is rotationally connected with a rotating rod 84, both ends of the rotating rod 84 penetrate the mounting seat 83 and extend to the outside of the mounting seat 83, one end of the rotating rod 84 is fixed with a rotating gear 85, the gear teeth of the rotating gear 85 are engaged with the gear teeth of the rack 81, and the other end of the rotating rod 84 is fixed with a first rotating handle 86.
[0026] The moving assembly 10 comprises a horizontal groove 101 formed in the top of the box 1, a screw rod 102 is rotationally connected between the opposite sides of the inner wall of the horizontal groove, one end of the screw rod 102 penetrates the box 1 and extends to the outside of the box 1, one end of the screw rod 102 is fixed with a second rotating handle 103, through the setting of the moving assembly 10, the quick separation and combination between the pawl 93 and the ratchet wheel 91 is realized, the rotating rod 84 is conveniently rotated, the clamping arc strip 72 is further driven to clamp the pipeline in the pipeline groove 6, the operation is simple, and the practicability is high, the friction between the clamping arc strip 72, the sponge on the pipeline groove 6 and the pipeline is increased, and the elastic force of the first spring 73 is matched, so that the sponge layer tightly wraps the pipeline, the purpose of fixing the pipeline is achieved, the friction between the pipeline and the pipeline groove 6 is large at this time, and it is difficult to move, compared with the mode of pressing the pipeline by using the pressing block, the pipeline is not directly compacted at this time, the phenomenon that blood does not flow in the pipeline is avoided, and the box 1 does not need to be frequently opened or closed, the fixing efficiency is improved, and the operation is convenient.
[0027] The inner surface of the horizontal groove 101 is slidably connected with a moving block 104, and one end of the screw rod 102 penetrates the moving block 104 and extends to the outside of the moving block 104.
[0028] The outer surface of the screw rod 102 is threadedly connected with the inner surface of the moving block 104, the top of the moving block 104 penetrates the horizontal groove 101 and extends to the outside of the horizontal groove 101, and one side of the moving block 104 is fixed with a fixed plate 105.
[0029] The limiting assembly 9 comprises the ratchet wheel 91 fixed on the outer surface of the rotating rod 84, the fixed plate 105 is fixed on one side of the connecting plate 92, the pawl 93 is rotationally connected to one side of the fixed plate 105 through a rotating shaft, the pawl 93 is clamped between the adjacent gear teeth of the ratchet wheel 91, the second spring 94 is fixed between one side of the connecting plate 92 and the top of the pawl 93, through the setting of the limiting assembly 9, the rotating rod 84 is limited by the pawl 93 and the ratchet wheel 91, the rotating rod 84 is prevented from rotating, the pipeline is conveniently inserted into the pipeline groove 6, and the operation is very convenient.
[0030] The first spring 73 is provided with six numbers, the pipe groove 6 and the opposite surface of the clamping arc strip 72 are provided with arc surfaces, and the sizes are matched with the pipeline, and the inner surfaces of the pipe groove 6 and the clamping arc strip 72 are provided with sponge layers; Embodiment 2
[0031] On the basis of embodiment 1, referring to Figures 6-7 as shown The height adjusting mechanism 5 comprises a movable rod 51 rotatably connected to one side of the square tube 3, one end of the movable rod 51 is fixed with a third rotating handle 52, the other end of the movable rod 51 penetrates through the square tube 3 and extends to the inside of the square tube 3, the other end of the movable rod 51 is fixed with a first bevel gear 53, and the bottom of the inner wall of the square tube 3 is rotatably connected with a threaded rod 54.
[0032] The top end of the threaded rod 54 penetrates through the lifting rod 2 and extends to the inside of the lifting rod 2, the outer surface of the threaded rod 54 is threadedly connected with the inner surface of the lifting rod 2, the outer surface of the threaded rod 54 is fixed with a second bevel gear 55, the first bevel gear 53 is engaged with the second bevel gear 55, and through the setting of the height adjusting mechanism 5, the flexible and free adjustment of the height of the device is realized, and it is convenient for medical staffs of different heights to use.
[0033] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.
[0034] When working, first rotate the first rotating handle 86, so that the first rotating handle 86 drives the rotating rod 84 to rotate, at the same time, the rotating rod 84 drives the rotating gear 85 to rotate, at the same time, the rotating gear 85 drives the rack 81 to rise, at the same time, the rack 81 drives the sliding plate 71 to slide upwards, at the same time, the sliding plate 71 drives the six clamping arcs 72 to slide upwards along the inner surface of the pipe groove 6, at the same time, the sliding plate 71 begins to squeeze the first spring 73, at this time, the rotating rod 84 drives the ratchet wheel 91 to rotate, at the same time, the pawl 93 is clamped into the ratchet wheel 91, preventing the rotating rod 84 from rotating back, further inserting the pipeline into the pipe groove 6, further rotating the second rotating handle 103, so that the second rotating handle 103 drives the screw rod 102 to rotate, at the same time, the screw rod 102 drives the moving block 104 to slide along the inner surface of the horizontal groove 101, at the same time, the moving block 102 drives the fixed plate 105, the connecting plate 92, the second spring 94 and the pawl 93 to move to one side, finally making the pawl 93 separate from the ratchet wheel 91, at this time, the first spring 73 in the compressed state immediately recovers, thereby driving the rotating rod 84 and the rotating gear 85 to rotate in the opposite direction, at the same time, the rotating gear 85 drives the rack 81 to move downwards, at the same time, the rack 81 drives the sliding plate 71 to slide downwards, finally, the sliding plate 71 drives the six clamping arcs 72 to clamp the pipeline in the pipe groove 6, when the height of the device needs to be adjusted, rotate the third rotating handle 52, so that the third rotating handle 52 drives the movable rod 51 to rotate, at the same time, the movable rod 51 drives the first bevel gear 53 to rotate, at the same time, the first bevel gear 53 drives the second bevel gear 55 to rotate, at the same time, the second bevel gear 55 drives the threaded rod 54 to rotate, at the same time, the threaded rod 54 drives the lifting rod 2 to slide upwards along the inner surface of the square tube 3, thereby realizing the height adjustment of the device, through the cooperation of the pipeline fixing assembly 7 and the lifting assembly 8, the clamping of the pipeline is realized, which is convenient for fixing the pipeline, by rotating the third rotating handle 52 in the opposite direction, the height of the device can be lowered, through the setting of the limiting assembly 9, the rotating rod 84 is limited by the pawl 93 and the ratchet wheel 91, preventing the rotating rod 84 from rotating back, which is very convenient for further inserting the pipeline into the pipe groove 6, through the setting of the height adjustment mechanism 5, the flexible and free adjustment of the height of the device is realized, which is convenient for medical staff of different heights to use.
[0035] The above detailed description of the embodiments of the application, but the content described is only the preferred embodiment of the application, and cannot be considered as limiting the scope of the application. Any equivalent changes and improvements made within the scope of the application shall still belong to the patent scope of the application.
Claims
1. A tubing fixing device for blood purification, comprising a housing (1), characterized in that: The bottom of the box (1) is fixed with a lifting rod (2), and the bottom end of the lifting rod (2) is provided with a square tube (3). The bottom end of the lifting rod (2) passes through the square tube (3) and extends into the interior of the square tube (3). The outer surface of the lifting rod (2) is slidably connected to the inner surface of the square tube (3). The bottom end of the square tube (3) is fixed with a base plate (4). The interior of the square tube (3) is provided with a height adjustment mechanism (5). The interior of the box (1) is provided with six pipe slots (6). The interior of the box (1) is provided with a pipe fixing assembly (7). The top of the box (1) is provided with a lifting assembly (8) for raising and lowering the pipe fixing assembly (7). The top of the box (1) is also provided with a limiting assembly (9) for limiting the lifting assembly (8). The top of the box (1) is also provided with a moving assembly (10). The pipeline fixing assembly (7) includes a sliding plate (71) slidably connected between the inner walls of the housing (1). The bottom of the sliding plate (71) is fixed with six clamping arc strips (72). The bottom of each of the six clamping arc strips (72) penetrates the pipe groove (6) and extends into the interior of the pipe groove (6). The outer surfaces of each of the six clamping arc strips (72) are slidably connected to the inner surface of the pipe groove (6). A first spring (73) is fixed between the top of the sliding plate (71) and the top of the inner wall of the housing (1).
2. The tubing fixing device for blood purification according to claim 1, characterized in that: The lifting assembly (8) includes a rack (81) fixed to the top of the slide plate (71), and a through slot (82) is provided through the top of the housing (1). The top of the rack (81) passes through the through slot (82) and extends to the outside of the through slot (82).
3. The tubing fixing device for blood purification according to claim 1, characterized in that: The top of the housing (1) is fixed with a mounting base (83). A rotating rod (84) is rotatably connected to the inner surface of the mounting base (83). Both ends of the rotating rod (84) pass through the mounting base (83) and extend to the outside of the mounting base (83). A rotating gear (85) is fixed to one end of the rotating rod (84). The teeth of the rotating gear (85) mesh with the teeth of the rack (81). A first rotating handle (86) is fixed to the other end of the rotating rod (84).
4. The tubing fixing device for blood purification according to claim 1, characterized in that: The moving component (10) includes a transverse groove (101) opened on the top of the box (1), and a lead screw (102) is rotatably connected between opposite sides of the inner wall of the transverse groove. One end of the lead screw (102) passes through the box (1) and extends to the outside of the box (1). A second rotating handle (103) is fixed to one end of the lead screw (102).
5. A tubing fixing device for blood purification according to claim 4, characterized in that: A movable block (104) is slidably connected to the inner surface of the transverse groove (101), and one end of the lead screw (102) passes through the movable block (104) and extends to the outside of the movable block (104).
6. A tubing fixing device for blood purification according to claim 5, characterized in that: The outer surface of the lead screw (102) is threadedly connected to the inner surface of the moving block (104). The top of the moving block (104) passes through the transverse groove (101) and extends to the outside of the transverse groove (101). A fixing plate (105) is fixed on one side of the moving block (104).
7. A tubing fixing device for blood purification according to claim 6, characterized in that: The limiting component (9) includes a ratchet (91) fixed on the outer surface of the rotating rod (84), a connecting plate (92) fixed on one side of the fixing plate (105), a pawl (93) rotatably connected to one side of the fixing plate (105) via a rotating shaft, the pawl (93) engaging with the adjacent teeth of the ratchet (91), and a second spring (94) fixed between one side of the connecting plate (92) and the top of the pawl (93).
8. A tubing fixing device for blood purification according to claim 1, characterized in that: The height adjustment mechanism (5) includes a movable rod (51) rotatably connected to one side of the square tube (3). One end of the movable rod (51) is fixed with a third rotating handle (52). The other end of the movable rod (51) passes through the square tube (3) and extends into the interior of the square tube (3). The other end of the movable rod (51) is fixed with a first bevel gear (53). A threaded rod (54) is rotatably connected to the bottom of the inner wall of the square tube (3).
9. A tubing fixing device for blood purification according to claim 8, characterized in that: The top end of the threaded rod (54) passes through the lifting rod (2) and extends into the interior of the lifting rod (2). The outer surface of the threaded rod (54) is threadedly connected to the inner surface of the lifting rod (2). A second bevel gear (55) is fixed on the outer surface of the threaded rod (54). The first bevel gear (53) meshes with the second bevel gear (55).
10. A tubing fixing device for blood purification according to claim 8, characterized in that: The number of the first spring (73) is set to six. The opposite surfaces of the tube groove (6) and the clamping arc strip (72) are both set as arc surfaces and are adapted to the size of the pipeline. The inner surfaces of the tube groove (6) and the clamping arc strip (72) are both provided with a sponge layer.
Citation Information
Patent Citations
Pipeline fixing device for blood purification nursing
CN215230874U