A blood pressure control module for continuous blood purification

Abstract

The present invention is applicable to the technical field of medical equipment and discloses a blood pressure control module for continuous blood purification. It aims to solve the technical problem in the prior art that the blood purification pipeline is difficult to replace due to wear and tear. The module comprises a purifier body, a display and a base. The purifier body is mounted on the base, and the display is mounted on the purifier body. The present invention sets a limit assembly so that the sliding block can be limited to a fixed position. Then, in conjunction with the setting of the multi-way tube, the sliding block can squeeze the multi-way tube on any side. The blood in the pipeline can be transported by rotating the rotating wheel. When one side of the multi-way tube is worn or permanently deformed due to long-term use, the sliding block can be directly pushed to switch to another multi-way tube for direct use. The switching process is relatively simple and convenient, and there is no need to replace a new pipeline again, which greatly increases the use time of the pipeline and reduces the cost.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a blood pressure control module for continuous blood purification. Background Art

[0002] Blood purification equipment refers to medical devices that purify a patient's blood through extracorporeal circulation to treat illnesses. Its primary principle is to utilize physical or chemical methods to simulate the filtration, reabsorption, secretion, and excretion functions of the human kidney, removing harmful substances from the blood and correcting imbalances in water, electrolytes, and acid-base balance, thereby improving the patient's condition.

[0003] A blood pump is a device specifically designed to drive blood through the extracorporeal circulation system and is a key device in blood purification therapy and certain cardiovascular surgeries. Its design and function are intended to simulate the heart's pumping function, providing blood pressure to ensure safe and stable blood flow through the extracorporeal circulation while minimizing damage to blood components.

[0004] Roller pumps are the most common type of blood pumps and are widely used in hemodialysis and extracorporeal circulation equipment. They consist of a rotatable roller and a pump trough with a fixed pipe. When the roller rolls on the pipe, it squeezes the pipe to make the blood flow forward. By adjusting the speed of the roller, the blood flow and pressure can be controlled. When the roller rolls and squeezes the pipe, the pipe is frequently deformed. Long-term deformation will cause the pipe to be worn and permanently deformed, that is, the pipe cannot rebound, thereby changing the flow cross-sectional area of ​​the pipe and reducing the blood flow. At this time, medical staff need to replace the pipe, and the replacement process is extremely cumbersome and needs to be replaced in a sterile environment, or directly replace a new set of pipes, which will greatly increase the cost. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a blood pressure control module for continuous blood purification, which aims to solve the technical problem in the prior art that the blood purification pipeline is worn and difficult to replace.

[0006] To achieve the above objectives, the present invention proposes a blood pressure control module for continuous blood purification, comprising a blood purification instrument body, a display, and a base. The blood purification instrument body is mounted on the base, the display is mounted on the blood purification instrument body, and a pressure module and a replaceable disposable component are provided on the front end surface of the blood purification instrument body.

[0007] At least one pressure module is provided and slides in the purifier body. The pressure module includes a sliding block and a rotating wheel. The rotating wheel is rotatably connected in the purifier body. The sliding block slides in the purifier body. The rotating wheel is located inside the sliding block.

[0008] The end surface of the purifier body is provided with at least one sliding groove, the sliding block slides in the sliding groove, the middle of the sliding block is hollow, two pipeline pump grooves are provided on the hollow inner wall of the sliding block, and the sliding block is further provided with two paddle grooves on both sides of the rotating wheel, and a limit assembly is installed in the paddle groove;

[0009] The limiting assembly includes a paddle and a limiting plate, wherein the limiting plate and the paddle are vertically connected to each other, and a rotating shaft is provided at the connection between the two, and the rotating shaft is rotatably connected to the inner wall of the paddle slot, and a torsion spring is sleeved on the rotating shaft. The end of the limiting plate is also provided with a raised buckle, and a contact switch is provided on one end surface of the buckle;

[0010] The disposable component includes a plasma separator, a syringe, a one-way flow block and a piping system. The piping system includes a multi-way tube. The piping system also includes other pipes for connecting the entire purification channel. The multi-way tube cooperates with the pressure module. The multi-way tube is a three-way setting. By pushing the sliding block 30, another pipe of the multi-way tube 50 is switched and squeezed.

[0011] Preferably, one end of the rotating wheel is mounted on a motor, which is disposed inside the main body of the purifier. At least three rollers are rotatably connected inside the rotating wheel, and the centers of the rollers are on the same horizontal plane as the center of the pipeline pump tank.

[0012] Preferably, at least two mounting slots are provided on the main body of the purifier, wherein the one-way flow block is detachably mounted on the mounting slots by fixing pins, and both side end faces of the one-way flow block are respectively provided with an outlet and an inlet, and an outlet pipe is mounted on the outlet.

[0013] Preferably, a confluence cavity is provided inside the one-way flow block, and two inlets are provided. The inlet extends inwardly to communicate with the confluence cavity, and the outlet extends inwardly to communicate with the confluence cavity. A sealing block is provided in the middle of the inlet, and the sealing block is fixed to the inner wall of the inlet by a spring.

[0014] Preferably, the purifier body is further provided with a plurality of pipe interfaces, which are connected to the electrical components inside the purifier body. A waste liquid tank is also provided on the end face of the purifier body, and a waste liquid bag is installed in the waste liquid tank.

[0015] Preferably, a plurality of hanging rods are fixed to both side end surfaces of the display, and a plasma bag is movably connected to the hanging rods. The plasma bag is connected to a disposable component on the main body of the purifier through a pipeline.

[0016] Compared with the prior art, the blood pressure control module for continuous blood purification provided by the present invention has the following beneficial effects:

[0017] 1. By setting the limit assembly, the sliding block can be restricted to a fixed position, and then cooperate with the setting of the multi-way tube to enable the sliding block to squeeze the multi-way tube on any side. The blood transportation in the pipeline can be completed by rotating the rotating wheel. When one side of the multi-way tube is worn or permanently deformed due to long-term use, the sliding block can be directly pushed to switch to another multi-way tube for direct use. The switching process is relatively simple and convenient, and there is no need to replace a new pipeline again, which greatly increases the use time of the pipeline and reduces costs.

[0018] 2. By setting the sealing block in the one-way flow block, when the pressure module controls the blood flow, when blood is output from one inlet, the other inlet will not affect each other through the seal of the sealing block, and vice versa. Moreover, through the setting of the sealing block, after the blood purification is completed, it will not cause backflow when entering the human body, thereby causing medical accidents.

[0019] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 3D is a stereoscopic view of an embodiment of the present invention.

[0021] Figure 2 FIG. 4 is a view of a pressure module according to an embodiment of the present invention.

[0022] Figure 3 FIG. 4 is an internal view of a pressure module according to an embodiment of the present invention.

[0023] Figure 4 FIG. 4 is a partial view of a pressure module according to an embodiment of the present invention.

[0024] Figure 5 It is a front view of a one-way circulation block according to an embodiment of the present invention.

[0025] Figure 6 It is a half-sectional view of a one-way circulation block according to an embodiment of the present invention.

[0026] Figure 7 2 is a view of a multi-way pipe according to an embodiment of the present invention.

[0027] in:

[0028] 10-purifier body; 1-display; 12-base; 13-hanging rod; 14-plasma bag; 15-mounting slot; 16-sliding slot; 17-waste liquid tank; 20-plasma separator; 21-syringe; 22-pipe interface; 30-sliding block; 31-limiting plate; 32-paddle; 33-rotating wheel; 34-paddle slot; 35-roller; 36-pipe pump slot; 37-clip; 40-one-way flow block; 41-fixing pin; 42-outlet; 43-outlet pipe; 44-inlet; 45-sealing block; 46-convective chamber; 50-multi-way pipe. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the present invention.

[0030] In the description of the present invention, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0031] In the description of the present invention, it should be noted that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0032] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0033] See Figure 1-7 An embodiment of the present invention provides a blood pressure control module for continuous blood purification, including a purifier body 10, a display 11 and a base 12. The purifier body 10 is installed on the base 12, and the display 11 is installed on the purifier body 10. A pressure module and a replaceable disposable component are provided on the front end surface of the purifier body 10. The purifier body 10 is also provided with a plurality of pipe interfaces 22, which are connected to the electrical components inside the purifier body 10. The disposable components are connected to all the pipe interfaces 22 together to achieve a sealed state of the entire device to prevent blood from contacting the outside world and thus causing infection. A waste liquid tank 17 is also provided on the end surface of the purifier body 10, and a waste liquid bag is installed in the waste liquid tank 17.

[0034] Several hanging rods 13 are fixed to the end faces of both sides of the display 11, and a plasma bag 14 is movably connected to the hanging rod 13. The plasma bag 14 is connected to the disposable component on the purifier body 10 through a pipeline. Various solution bags can also be hung on the hanging rod 13. It is at a high place, and the blood can circulate more easily under the influence of gravity.

[0035] The pressure module is provided with at least one and slides in the purifier body 10. The pressure module includes a sliding block 30 and a rotating wheel 33. The rotating wheel 33 is rotatably connected in the purifier body 10. The sliding block 30 slides in the purifier body 10. The rotating wheel 33 is located inside the sliding block 30. The end surface of the purifier body 10 is provided with at least one sliding groove 16. The sliding block 30 slides in the sliding groove 16. There is friction between the sliding block 30 and the inner wall of the sliding groove 16, so that there is a certain damping between the two to prevent the sliding block 30 from moving under the influence of its own gravity. The middle of the sliding block 30 is hollow. Two pipeline pump grooves 36 are provided on the hollow inner wall of the sliding block 30. The sliding block 30 is located on both sides of the rotating wheel 33 and has two paddle grooves 34. A limiting component is installed in the paddle groove 34. The limiting component includes a paddle 32 and a limiting plate 3 1. The limit plate 31 and the paddle 32 are connected to each other perpendicularly, and a rotating shaft is provided at the connection between the two. The rotating shaft is rotatably connected to the inner wall of the paddle groove 34, and a torsion spring is set on the rotating shaft. The end of the limit plate 31 is also provided with a raised buckle 37, and a contact switch is provided on one end face of the buckle 37. Through the setting of the limit assembly, the sliding block 30 can be limited to a fixed position, and then cooperate with the setting of the multi-way tube 50 to enable the sliding block 30 to squeeze the multi-way tube 50 on any side. The blood in the pipeline can be transported by rotating the rotating wheel 33. When one side of the multi-way tube 50 is worn or permanently deformed due to long-term use, the sliding block 30 can be directly pushed to switch to squeeze the other pipeline of the multi-way tube 50, and it can be used directly. The switching process is relatively simple and convenient, and there is no need to replace the pipeline again, which greatly increases the service life of the pipeline and reduces the cost.

[0036] One end of the rotating wheel 33 is mounted on a motor, which is disposed inside the purifier body 10. At least three rollers 35 are rotatably connected inside the rotating wheel 33. The centers of the rollers 35 and the center of the pipeline pump groove 36 are on the same horizontal plane. The contact switch on the limit plate 31 can control the forward and reverse rotation of the motor. When the position of the sliding block 30 is changed, the rotation direction of the rotating wheel 33 will also be changed, so that the blood flow direction in the pipeline remains unchanged.

[0037] The disposable component includes a plasma separator 20, a syringe 21, a one-way circulation block 40 and a piping system. At least two mounting slots 15 are provided on the purifier body 10, wherein the one-way circulation block 40 is detachably mounted on the mounting slot 15 by a fixing pin 41. The two side end faces of the one-way circulation block 40 are respectively provided with an outlet 42 and an inlet 44, and an outlet tube 43 is mounted on the outlet 42. A confluence cavity 46 is provided inside the one-way circulation block 40, and two inlets 44 are provided. The inlet 44 extends inwardly and communicates with the confluence cavity 46, and the outlet 42 extends inwardly and communicates with the confluence cavity 46. A sealing block 45 is provided in the middle of the inlet 44, and the sealing block 45 is fixed to the inner wall of the inlet 44 by a spring. Through the setting of the sealing block 45 in the one-way circulation block 40, when the pressure module controls the blood flow, when blood is discharged from one of the inlets 44, the other inlet 44 will not affect each other through the sealing of the sealing block 45, and vice versa.

[0038] The piping system includes a multi-way pipe 50, which also includes other pipes for connecting the entire purification channel. The multi-way pipe 50 cooperates with the pressure module. The multi-way pipe 50 is a three-way setting, allowing the blood in the pipe to flow out in two directions.

[0039] Working principle: When in use, all pipelines are installed, that is, the pipelines are installed on the plasma separator 20, syringe 21, pipeline interface 22, pressure module and one-way circulation block 40, and then flushed and the sealing condition is checked. The pipelines installed on the pressure module need to select the multi-way tube 50 for installation, and clamp two sides of the multi-way tube 50 on the pipeline pump groove 36, and then select a direction to push the sliding block 30 with force so that the buckle 37 on the limit plate 31 is clamped in the purifier body 10. At this time, the roller 35 will be squeezed onto the multi-way tube 50, and then the equipment is started. The rotating wheel 33 rotates and circulates through the roller 35 to squeeze the multi-way tube 50 to transport blood. The blood enters the inlet 44 through the multi-way tube 50, and then the sealing block 45 is compressed by the action of blood pressure. The blood enters the confluence cavity 46 and flows out through the outlet 42 to complete the blood purification operation.

[0040] After long-term use, the squeezed multi-way tube 50 on one side will be worn or permanently deformed. At this time, the medical staff will toggle the paddle 32 to disengage the limit plate 31 from the inner wall of the purifier body 10, and then forcefully push the sliding block 30 to the other side until the limit plate 31 on the other side is stuck on the inner wall of the purifier body 10. The contact switch of the buckle 37 on the limit plate 31 here starts the motor on the rotating wheel 33 to reverse, which can drive the rotating wheel 33 to rotate in the opposite direction, so that the multi-way tube 50 on the other side can be used, so that the blood enters the confluence cavity 46 through the inlet 44 on the other side, completing the blood purification.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A blood pressure control module for continuous blood purification, comprising a purifier body (10), a display (11) and a base (12), wherein the purifier body (10) is mounted on the base (12), and the display (11) is mounted on the purifier body (10), characterized in that: A pressure module and a replaceable disposable component are provided on the front end surface of the purifier body (10); At least one pressure module is provided and slides in the purifier body (10). The pressure module includes a sliding block (30) and a rotating wheel (33). The rotating wheel (33) is rotatably connected in the purifier body (10). The sliding block (30) slides in the purifier body (10), and the rotating wheel (33) is located inside the sliding block (30). The end surface of the purifier body (10) is provided with at least one sliding groove (16), the sliding block (30) slides in the sliding groove (16), the middle of the sliding block (30) is hollow, two pipeline pump grooves (36) are provided on the hollow inner wall of the sliding block (30), and the sliding block (30) is further provided with two paddle grooves (34) on both sides of the rotating wheel (33), and a limit assembly is installed in the paddle groove (34); The limiting assembly includes a paddle (32) and a limiting plate (31), wherein the limiting plate (31) and the paddle (32) are vertically connected to each other, and a rotating shaft is provided at the connection between the two, and the rotating shaft is rotatably connected to the inner wall of the paddle slot (34), and a torsion spring is sleeved on the rotating shaft, and a protruding buckle (37) is further provided at the end of the limiting plate (31), and a contact switch is provided on one end surface of the buckle (37); The disposable assembly includes a plasma separator (20), a syringe (21), a one-way flow block (40) and a piping system, wherein the piping system includes a multi-way pipe (50), and the piping system also includes other pipes for connecting the entire purification channel. The multi-way pipe (50) cooperates with the pressure module, and the multi-way pipe (50) is a three-way setting. By pushing the sliding block (30), another pipeline of the multi-way pipe (50) is switched and squeezed.

2. A blood pressure control module for continuous blood purification according to claim 1, characterized in that: One end of the rotating wheel (33) is mounted on a motor, which is disposed in the purifier body (10). At least three rollers (35) are rotatably connected inside the rotating wheel (33), and the centers of the rollers (35) and the center of the pipeline pump tank (36) are on the same horizontal plane.

3. The blood pressure control module for continuous blood purification according to claim 1, characterized in that: At least two mounting grooves (15) are provided on the purifier body (10), wherein the one-way circulation block (40) is detachably mounted on the mounting groove (15) via a fixing pin (41), and both side end surfaces of the one-way circulation block (40) are respectively provided with an outlet (42) and an inlet (44), and an outlet pipe (43) is mounted on the outlet (42).

4. A blood pressure control module for continuous blood purification according to claim 3, characterized in that: A confluence cavity (46) is provided inside the one-way flow block (40), two inlets (44) are provided, the inlet (44) extends inwardly to communicate with the confluence cavity (46), the outlet (42) extends inwardly to communicate with the confluence cavity (46), a sealing block (45) is provided in the middle of the inlet (44), and the sealing block (45) is fixed to the inner wall of the inlet (44) by a spring.

5. The blood pressure control module for continuous blood purification according to claim 1, characterized in that: The purifier body (10) is further provided with a plurality of pipe interfaces (22), the pipe interfaces (22) being connected to the electrical components inside the purifier body (10). A waste liquid tank (17) is further provided on the end surface of the purifier body (10), and a waste liquid bag is installed in the waste liquid tank (17).

6. A blood pressure control module for continuous blood purification according to claim 1, characterized in that: A plurality of hanging rods (13) are fixed to both side end surfaces of the display (11), and a plasma bag (14) is movably connected to the hanging rods (13). The plasma bag (14) is connected to a disposable component on the purifier body (10) through a pipeline.

Images