Blood pressure control module for continuous blood purification

Abstract

The invention is suitable for the technical field of medical equipment, and discloses a blood pressure control module for continuous blood purification. The blood purification instrument aims at solving the technical problem that in the prior art, a blood purification pipeline is difficult to replace due to abrasion, the blood purification instrument comprises a purification instrument body, a displayer and a base, the purification instrument body is installed on the base, and the displayer is installed on the purification instrument body. Then the arrangement of the multi-way pipes is matched, the sliding block can extrude the multi-way pipe on any side, blood in the pipeline can be conveyed through rotation of the rotating wheel, and when one side of the multi-way pipe is abraded or permanently deformed after being used for a long time, the sliding block can be directly pushed to be switched to another multi-way pipe for direct use; the switching process is simple and convenient, a new pipeline does not need to be replaced again, the service time of the pipeline is greatly prolonged, and cost is reduced.

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 the patient's blood through extracorporeal circulation technology to achieve the purpose of treating diseases. Its main principle is to use physical or chemical methods to simulate the filtering, reabsorption, secretion and excretion functions of the human kidney, remove harmful substances from the blood, correct water electrolyte and acid-base balance disorders, and thus improve the patient's condition.

[0003] The blood pump is a device specifically used to drive blood flow in the extracorporeal circulation system and is a key device in blood purification therapy and certain cardiovascular surgeries. The design and function of the blood pump are intended to simulate the pumping function of the heart and provide blood pressure to ensure the safe and stable flow of blood in 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 in a state of deformation. 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 replaced with a new set of pipes, which will greatly increase costs. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the above-mentioned 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-mentioned object, the present invention proposes a blood pressure control module for continuous blood purification, comprising a purifier body, a display and a base, wherein the purifier body is mounted on the base, the display is mounted on the purifier body, and a pressure module and a replaceable disposable component are arranged on the front end surface of the purifier body; 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, and the rotating wheel is located inside the sliding block.

[0007] Preferably, at least one sliding groove is provided on the end face of the purifier body, and the sliding block slides in the sliding groove. The middle of the sliding block is hollow, and two pipeline pump grooves are provided on the hollow inner wall of the sliding block. The sliding block is also provided with two paddle grooves on both sides of the rotating wheel, and a limiting component is installed in the paddle groove.

[0008] Preferably, the limit assembly includes a paddle and a limit plate, the limit plate and the paddle are vertically connected to each other, 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, and a torsion spring is mounted on the rotating shaft, and a raised buckle is also provided at the end of the limit plate, and a contact switch is provided on one side end face of the buckle.

[0009] Preferably, one end of the rotating wheel is mounted on a motor, the motor is disposed in 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 slot.

[0010] Preferably, the disposable component includes a plasma separator, a syringe, a one-way flow block and a piping system, and at least two mounting grooves are provided on the main body of the purifier, wherein the one-way flow block is detachably mounted on the mounting groove by a fixing pin, 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.

[0011] 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.

[0012] Preferably, the piping system includes a multi-way pipe, and the piping system also includes other pipelines for connecting the entire purification channel. The multi-way pipe cooperates with the pressure module, and the multi-way pipe is a three-way setting.

[0013] Preferably, the purifier body is further provided with a plurality of pipe interfaces, which are connected with 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.

[0014] 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.

[0015] Compared with the prior art, the blood pressure control module for continuous blood purification provided by the present invention has the following beneficial effects: 1. By setting the limit assembly, the sliding block can be limited 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 the cost.

[0016] 2. Through the setting of the sealing block in the one-way flow block, when the pressure module controls the blood flow, when blood is output from one of the inlets, the other inlet will not affect each other through the seal of the sealing block, and vice versa. In addition, through the setting of the sealing block, after the blood is purified, it will not flow back into the human body, thereby causing medical accidents.

[0017] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 2 is a stereoscopic view of an embodiment of the present invention.

[0019] Figure 2 FIG. 4 is a view of a pressure module according to an embodiment of the present invention.

[0020] Figure 3 FIG. 4 is an internal view of a pressure module according to an embodiment of the present invention.

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

[0022] Figure 5 It is a front view of a one-way circulation block according to an embodiment of the present invention.

[0023] Figure 6 It is a half-section view of a one-way flow block according to an embodiment of the present invention.

[0024] Figure 7 2 is a view of a multi-way pipe according to an embodiment of the present invention.

[0025] in: 10-purifier body; 1-display; 12-base; 13-hanging rod; 14-plasma bag; 15-installation slot; 16-sliding slot; 17-waste liquid slot; 20-plasma separator; 21-syringe; 22-pipeline interface; 30-sliding block; 31-limiting plate; 32-paddle; 33-rotating wheel; 34-paddle slot; 35-roller; 36-pipeline pump slot; 37-clip; 40-one-way flow block; 41-fixing pin; 42-outlet; 43-outlet pipe; 44-inlet; 45-sealing block; 46-convergence chamber; 50-multi-way pipe. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0027] 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.

[0028] 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 positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invention product is usually placed when in use, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 descriptions, and cannot be understood as indicating or implying relative importance. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the 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.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See also Figure 1-7 The 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 arranged 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 component is connected to all the pipe interfaces 22 together, so that the whole device is in a sealed state to prevent blood from contacting the outside world and thus causing infection. A waste liquid tank 17 is also opened on the end surface of the purifier body 10, and a waste liquid bag is installed in the waste liquid tank 17.

[0031] A number of hanging rods 13 are fixed to the two side end faces of the display 11, and a plasma bag 14 is movably connected to the hanging rods 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 rods 13. It is at a high place, and the blood can circulate more easily under the influence of gravity.

[0032] 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 avoid 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 also has two paddle grooves 34. A limit assembly is installed in the paddle groove 34. The limit assembly includes a paddle 32 and a limit The plate 31, the limit plate 31 and the paddle 32 are vertically connected to each other, 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 mounted on the rotating shaft. A raised buckle 37 is also provided at the end of the limit plate 31, 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 so that the sliding block 30 can squeeze the multi-way tube 50 on any side, and the blood transportation in the pipeline can be completed 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 another multi-way tube 50 for direct use. The switching process is relatively simple and convenient, and there is no need to replace the pipeline again, which greatly increases the use time of the pipeline and reduces the cost.

[0033] One end of the rotating wheel 33 is mounted on a motor, and the motor is disposed in the main body 10 of the purifier. At least three rollers 35 are rotatably connected inside the rotating wheel 33. The center of the roller 35 is on the same horizontal plane as the center of the pipeline pump groove 36. 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.

[0034] The disposable component includes a plasma separator 20, a syringe 21, a one-way flow block 40 and a piping system. At least two mounting grooves 15 are provided on the purifier body 10, wherein the one-way flow block 40 is detachably mounted on the mounting groove 15 by a fixing pin 41, and outlets 42 and inlets 44 are respectively provided on the two side end faces of the one-way flow block 40, and an outlet tube 43 is mounted on the outlet 42. A confluence cavity 46 is provided inside the one-way flow block 40, and two inlets 44 are provided. The inlet 44 extends inwardly to communicate with the confluence cavity 46, and 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. Through the setting of the sealing block 45 in the one-way flow 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.

[0035] The pipeline system includes a multi-way pipe 50, and the pipeline system also includes other pipelines 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, so that the blood in the pipeline can flow out in two directions.

[0036] Working principle: When in use, all pipelines are installed, that is, the pipelines are installed on the plasma separator 20, the syringe 21, the pipeline interface 22, the pressure module and the one-way flow block 40, and then flushed and the sealing condition is tested. The pipeline installed on the pressure module needs to select the multi-way tube 50 for installation, and two sides of the multi-way tube 50 are clamped on the pipeline pump groove 36, and then a direction is selected to forcefully push the sliding block 30 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, so that the blood can be transported. The blood enters the inlet 44 through the multi-way tube 50, and then the sealing block 45 compresses the spring through the action of blood pressure, and the blood enters the confluence cavity 46 and flows out through the outlet 42, and the blood purification operation is completed.

[0037] After long-term use, the squeezed multi-channel tube 50 on one side will be worn or permanently deformed. At this time, the medical staff will pull the paddle 32 to disengage the limit plate 31 from the inner wall of the purifier body 10, and then 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-channel 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 to complete the blood purification.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A blood pressure control module for continuous blood purification, comprising a blood purification instrument body (10), a display (11) and a base (12), wherein the blood purification instrument body (10) is mounted on the base (12), and the display (11) is mounted on the blood purification instrument body (10), characterized in that: A pressure module and a replaceable disposable component are arranged 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 comprises 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).

2. A blood pressure control module for continuous blood purification according to claim 1, characterized in that: At least one sliding groove (16) is provided on the end surface of the purifier body (10), and the sliding block (30) slides in the sliding groove (16). The middle of the sliding block (30) is hollow, and two pipeline pump grooves (36) are provided on the hollow inner wall of the sliding block (30). The sliding block (30) is also provided with two paddle grooves (34) on both sides of the rotating wheel (33), and a limit position assembly is installed in the paddle groove (34).

3. A blood pressure control module for continuous blood purification as claimed in claim 2, characterized in that: The limiting assembly comprises a paddle (32) and a limiting plate (31), wherein the limiting plate (31) and the paddle (32) are vertically connected to each other, 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 sleeved on the rotating shaft, and a protruding buckle (37) is also provided at the end of the limiting plate (31), and a contact switch is provided on one end surface of the buckle (37).

4. A blood pressure control module for continuous blood purification as claimed in claim 2, characterized in that: One end of the rotating wheel (33) is mounted on a motor, and the motor 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 groove (36) are located on the same horizontal plane.

5. A blood pressure control module for continuous blood purification according to claim 1, characterized in that: The disposable component comprises a plasma separator (20), a syringe (21), a one-way circulation block (40) and a pipeline system. The purifier body (10) is provided with at least two mounting grooves (15), 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).

6. A blood pressure control module for continuous blood purification as claimed in claim 5, characterized in that: The one-way flow block (40) has a confluence cavity (46) formed therein, and two inlets (44) are provided. The inlet (44) extends inwardly to communicate with the confluence cavity (46), and 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.

7. A blood pressure control module for continuous blood purification as claimed in claim 5, characterized in that: The pipeline system comprises a multi-way pipe (50), and the pipeline system also comprises other pipelines 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.

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

9. 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) via a pipeline.

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