Water injection device for a plasma fractionator

Abstract

The application relates to the technical field of plasma separation, and discloses a water injection device of a plasma component separator, which comprises a bottom plate, a fixing mechanism arranged on the bottom plate, a fixed end and a moving end oppositely arranged in the fixing mechanism, the moving end being movable towards the fixed end to fix the plasma component separator between the fixed end and the moving end, one end of the moving end abutting against the plasma component separator being provided with a sealed suction chamber, the suction chamber being communicated with a fiber membrane of the plasma component separator, a vacuum pump joint being arranged on the moving end and communicated with the suction chamber, the vacuum pump joint being connected with a vacuum pump, a water pipe joint being arranged on the plasma component separator, one end of the water pipe joint being connected with a water inlet pipe, and the other end of the water pipe joint being communicated with a space at the end of the fiber membrane away from the suction chamber to inject water into the space, and the vacuum pump joint can suck water from one side of the fiber membrane into the suction chamber to complete wetting of the fiber membrane, so that a subsequent air detection process can be normally carried out, and the accuracy of the air detection result is ensured.

Description

Technical Field

[0001] This invention relates to the field of plasma separation technology, and in particular to a water injection device for a plasma component separator. Background Technology

[0002] Currently, existing dialyzers use a conventional water injection method, simultaneously injecting water through both the blood inlet and the liquid inlet at the lower end of the dialyzer to wet both the inside and outside of the membrane. The pores of the fiber membrane are nanometer-sized; due to surface tension and the unique physical structure of the fiber membrane, the injected water adheres to these pores, thus blocking them and preparing for subsequent gas analysis.

[0003] When the pores are large (the pores in the plasma component separator are larger than those in the dialyzer membrane), water molecules can easily pass through them, resulting in insufficient wetting of the fiber membrane during the water injection process. When the fiber membrane is not sufficiently wetted, water molecules cannot adhere well to the pores, leading to misjudgments in subsequent gas analysis procedures. Summary of the Invention

[0004] The purpose of this invention is to provide a water injection device for a plasma component separator. After being fully wetted, the water droplets can better attract each other and eventually block the wall holes under tension, allowing the subsequent gas detection process to proceed normally and ensuring the accuracy of the gas detection results.

[0005] To achieve the above objectives, the present invention provides a water injection device for a plasma component separator, comprising:

[0006] Base plate;

[0007] A fixing mechanism is provided on the base plate. The fixing mechanism includes a fixed end and a movable end arranged opposite to each other. The movable end can move toward the fixed end to fix the plasma component separator between the fixed end and the movable end. The movable end has a sealed suction chamber at one end abutting the plasma component separator. The suction chamber is connected to the fiber membrane of the plasma component separator.

[0008] A vacuum pump connector is provided on the movable end and connected to the suction chamber. The vacuum pump connector is connected to a vacuum pump. A water pipe connector is provided on the plasma component separator. One end of the water pipe connector is connected to a water inlet pipe, and the other end is connected to the space of the fiber membrane facing away from the suction chamber to inject water into the space. The vacuum pump connector can draw water from one side of the fiber membrane into the suction chamber to complete the wetting of the fiber membrane.

[0009] Compared with the prior art, the water injection device of the plasma component separator has the beneficial effects that the fixing mechanism is arranged on the bottom plate, the moving end and the fixed end of the fixing structure are used to fix the plasma component separator, the moving end is moved to clamp and fix the plasma component separator with the fixed end, a closed suction chamber is formed between the moving end and the plasma component separator after being fixed, and a vacuum pump connector is arranged on the moving end and communicates with the suction chamber.

[0010] The water injection device of the plasma component separator of the embodiment of the application is characterized in that the moving end abutting against one end of the plasma component separator is provided with a water pumping plate body, the water pumping plate body is formed with the suction chamber, and the suction chamber is in size cooperation with one end of the plasma component separator.

[0011] The water injection device of the plasma component separator of the embodiment of the application is characterized in that the water pumping plate body is formed with a fluid channel to make the vacuum pump connector communicate with the suction chamber.

[0012] The water injection device of the plasma component separator of the embodiment of the application is characterized in that the moving end further comprises a driving device, and the output end of the driving device is connected with the water pumping plate body to push the water pumping plate body to move towards or away from the plasma component separator.

[0013] The water injection device of the plasma component separator of the embodiment of the application is characterized in that the fixing mechanism further comprises a supporting assembly, the supporting assembly comprises a plurality of supporting plates arranged at intervals, and the supporting plates are formed with groove positions in size cooperation with the plasma component separator.

[0014] The water injection device of the plasma component separator of the embodiment of the application is characterized in that one side of the moving end away from the plasma component separator is provided with a stand, the stand is provided with a mounting plate, and the mounting plate is provided with a pressure reducing valve.

[0015] The water injection device of the plasma component separator according to the embodiment of the application, the other end of the stand relative to the mounting plate is provided with a second mounting plate, the second mounting plate is provided with a pressure regulating valve and a filter valve.

[0016] The water injection device of the plasma component separator according to the embodiment of the application, the middle part of the first mounting plate and the middle part of the second mounting plate are oppositely provided with a communication hole for pipeline communication.

[0017] The water injection device of the plasma component separator according to the embodiment of the application, the fixed end comprises a fixed groove which is opened towards the moving end, and the fixed groove is matched with the size of one end of the plasma component separator.

[0018] The water injection device of the plasma component separator according to the embodiment of the application, the bottom plate is provided with at least two groups of the fixing mechanism, the fixing mechanism is arranged in parallel, and the moving end of each group of the fixing mechanism is provided with the vacuum water pipe joint.

[0019] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following description and drawings or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the water injection device of the plasma component separator according to the embodiment of the application;

[0021] Figure 2 is a structural schematic view of the water injection device of the plasma component separator according to the embodiment of the application from another direction;

[0022] In the figure, 1 is a bottom plate; 2 is a fixing mechanism; 21 is a fixed end; 22 is a moving end; 23 is a suction chamber; 24 is a water pumping plate body; 25 is a fluid passage; 26 is a driving device; 27 is a support assembly; 28 is a slot; 29 is a fixed groove; 3 is a vacuum pump joint; 31 is a water pipe joint; 4 is a plasma component separator; 5 is a stand; 6 is a first mounting plate; 61 is a pressure reducing valve; 62 is a communication hole; 7 is a second mounting plate; 71 is a pressure regulating valve; 72 is a filter valve. DETAILED DESCRIPTION

[0023] The embodiments of the application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the application, and cannot be understood as a limitation of the application.

[0024] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by the upper, lower, front, rear, left, right and the like, is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application.

[0025] In the description of the present application, one or more is understood as one or more, more than two, greater than, less than, more than and the like are not understood as including the number, and above, below, within and the like are understood as including the number. If the first and the second are described, they are only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features or the sequence of the indicated technical features.

[0026] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0027] As shown in Figure 1 and Figure 2 The water injection device of the plasma component separator of the preferred embodiment of the present application comprises a bottom plate 1, the bottom plate 1 is provided as a flat plate, and a fixing mechanism 2 is arranged on the bottom plate 1.

[0028] The fixing mechanism 2 is arranged on the upper end surface of the bottom plate 1, and the fixing mechanism 2 comprises a fixed end 21 and a moving end 22 arranged oppositely, the fixed end 21 is fixedly arranged on the bottom plate 1, and the moving end 22 is movable towards the fixed end 21, and can fix and clamp the plasma component separator 4 between the fixed end 21 and the moving end 22, the moving end 22 is recessed inwardly at one end abutting against the plasma component separator 4 and forms a sealed suction chamber 23 with the plasma component separator 4, and the suction chamber 23 is communicated with the fiber membrane of the plasma component separator 4 when abutting against the plasma component separator 4;

[0029] A vacuum pump connector 3 is further arranged on the moving end 22, the vacuum pump connector 3 is arranged on the moving end 22 and communicated with the suction chamber 23, and a vacuum pump is connected to the vacuum pump connector 3, and the vacuum pump can be started to vacuumize the sealed suction chamber 23; a water pipe connector 31 is arranged on the plasma component separator 4, one end of the water pipe connector 31 is connected to a water inlet pipe, and the other end is communicated with the space at one end of the fiber membrane away from the suction chamber 23 to inject water into the sealed space, and when the water injection is completed, the vacuum pump is started, and the water can be sucked from one side of the fiber membrane to the suction chamber 23 through the vacuum pump connector 3 to complete the wetting of the fiber membrane.

[0030] The water injection device of the plasma component separator 4 of the present application works as follows: the plasma component separator 4 is fixed with the fixed end 21, and then the moving end 22 is moved towards the plasma component separator 4 to abut against one end of the plasma component separator 4 away from the fixed end 21, and the sealing is completed at the suction chamber 23; at this time, the water inlet pipe injects water into the space on the side of the fiber membrane away from the suction chamber 23, and when the water fills in the space, the vacuum pump is started to form negative pressure in the suction chamber 23 through the vacuum pump connector 3, so that the water in the space on the other side of the fiber membrane flows through the wall holes on the fiber membrane under the action of pressure, and the wetting of the wall holes on the fiber membrane is completed. The water injection device of the plasma component separator 4 of the present application can make the water flow from the inside of the fiber membrane to the outside of the fiber membrane through air pressure, and the water can fully wet the wall holes of the fiber membrane during the transmembrane process, so that the water can better attract each other based on the intermolecular attraction, and finally the wall holes are blocked under the action of tension, so that the subsequent air detection process can be normally carried out, and the accuracy of the air detection result is ensured.

[0031] In some embodiments of the present application, the moving end 22 abutting against one end of the plasma component separator 4 is provided with a water suction plate body 24, the water suction plate body 24 is provided as a square plate body with a certain thickness, and the inside of the water suction plate body 24 is formed with a suction chamber 23, the suction chamber 23 is provided in a cylindrical shape, and the center of the suction chamber 23 is the center of the square plate body; the suction chamber 23 is matched in size with one end of the plasma component separator 4, the shape of the suction chamber 23 matches the cylindrical shape of the plasma component separator 4, and the diameters are also the same, so that the plasma component separator 4 can be fixed in the water suction plate body 24 and form a sealed suction chamber 23 between the plasma component separator 4 and the water suction plate body 24.

[0032] In some embodiments of the present application, a fluid channel 25 is formed in the water suction plate body 24 to connect the vacuum pump connector 3 with the suction chamber 23, the fluid channel 25 extends into the water suction plate body 24 from the vacuum pump connector 3, and is provided with an opening at the center of the suction chamber 23, so that the suction force of the vacuum pump is uniformly distributed to each position of the suction chamber 23, which is beneficial to the water in the space on the other side of the fiber membrane to flow through the fiber membrane smoothly and wet the fiber membrane, and ensures the uniform wetting of the fiber membrane.

[0033] In some embodiments of the present application, the moving end 22 further comprises a driving device 26, and the driving device 26 comprises a pneumatic cylinder or the like; the output end of the driving device 26 is connected to the water suction plate body 24 to push the water suction plate body 24 to move towards or away from the plasma component separator 4, specifically, the output shaft of the pneumatic cylinder is connected to the center position of the water suction plate body 24, and the pushing process of the water suction plate body 24 is stable, which prevents the water suction plate body 24 from colliding with the plasma component separator 4.

[0034] In some embodiments of the present application, the fixing mechanism 2 further comprises a support assembly 27, which comprises a plurality of support plates arranged at intervals, and the support plates are vertically connected and fixed to the bottom plate 1 to support the plasma component separator 4 below and ensure its stability during water injection; the support plates are provided with groove positions 28 matched in size with the plasma component separator 4, and the groove positions 28 are semicircular in shape corresponding to the shape of the plasma component separator 4, so that the plasma component separator 4 can be stably fixed on the support plates and will not be horizontally displaced.

[0035] In some embodiments of the present application, the side of the moving end 22 facing away from the plasma component separator 4 is provided with a stand 5, which is arranged vertically to the bottom plate 1, and the stand 5 is made of steel profile, and a plurality of stands 5 can be arranged at intervals and in parallel; the stand 5 is provided with a first mounting plate 6, and the first mounting plate 6 is provided with a pressure reducing valve 61 arranged between the vacuum pump joint 3 and the vacuum pump to prevent the vacuum pump from having too much suction force on the suction chamber 23, causing the fiber membrane to rupture. Specifically, the top of the stand 5 is also provided with a cylinder switch to facilitate the operator to operate the cylinder to complete the movement of the moving end 22.

[0036] In some embodiments of the present application, the other end of the stand 5 relative to the first mounting plate 6 is provided with a second mounting plate 7, which is arranged in parallel with the first mounting plate 6, and the second mounting plate 7 is provided with a pressure regulating valve 71 and a filter valve 72, which are also arranged on the pipeline between the vacuum pump and the vacuum pump joint 3 to optimize the vacuum suction pipeline and provide pressure regulation and filtration functions for the vacuum suction pipeline. The first mounting plate 6 and the second mounting plate 7 are arranged separately to facilitate circuit connection of the valve bodies and optimize the layout of the circuit.

[0037] In some embodiments of the present application, the middle part of the first mounting plate 6 and the middle part of the second mounting plate 7 are oppositely provided with a communication hole 62 for pipeline communication, and the communication hole 62 corresponds to the interval between the two stands 5 to facilitate the pipeline to pass directly without the pipeline bypassing the stand 5, thereby optimizing the layout of the vacuum suction pipeline.

[0038] In some embodiments of the present application, the fixed end 21 comprises a fixing groove 29 opened towards the moving end 22, which has the same shape as the suction chamber 23, and the fixing groove 29 is matched in size with one end of the plasma component separator 4, so that one end of the plasma component separator 4 can be stably fixed in the fixing groove 29 to ensure the firm fixation of the plasma component separator 4.

[0039] In some embodiments of the present application, at least two groups of fixing mechanisms 2 are arranged on the base plate 1, the fixing mechanisms 2 are arranged in parallel, and a vacuum water pipe joint 31 is arranged on the moving end 22 of each group of fixing mechanisms 2. A plurality of groups of pressure reducing valves 61 are arranged on the first connecting plate relative to the number of fixing mechanisms 2, so that the water injection device of the plasma component separator 4 can simultaneously inject water into a plurality of groups of plasma component separators 4, effectively improving the water injection efficiency of the water injection device of the plasma component separator 4.

[0040] The working process of the present application is as follows: the fixing mechanism 2 is arranged on the base plate 1, the moving end 22 and the fixed end 21 of the fixing mechanism are used to fix the plasma component separator 4, the moving end 22 moves and clamps the plasma component separator 4 with the fixed end 21, and after being fixed, the moving end 22 and the plasma component separator 4 form a closed suction chamber 23, and the moving end 22 is further provided with a vacuum pump joint 3 communicating with the suction chamber 23. In operation, the plasma component separator 4 is fixed with the fixed end 21, and then the moving end 22 moves towards the plasma component separator 4 and abuts against one end of the plasma component separator 4 away from the fixed end 21, and sealing is completed at the suction chamber 23; at this time, the water inlet pipe injects water into the space on the side of the fiber membrane away from the suction chamber 23, and after the water fills in the space, the vacuum pump is started, and the suction chamber 23 forms negative pressure through the vacuum pump joint 3, so that the water in the space on the other side of the fiber membrane passes through the wall holes on the fiber membrane under the action of pressure, and the wetting of the wall holes on the fiber membrane is completed. The water injection device of the plasma component separator 4 of the present application can make water flow from the inside of the fiber membrane to the outside of the fiber membrane through gas pressure, cross the membrane, and wet the wall holes of the fiber membrane, so that the water droplets can better attract each other after being fully wetted, and finally block the wall holes under the action of tension.

[0041] In summary, the water injection device of the plasma component separator 4 provided by the embodiments of the present application can make the water droplets better attract each other after being fully wetted, and finally block the wall holes under the action of tension, so that the subsequent gas detection process can be normally carried out, and the accuracy of the gas detection result is ensured.

[0042] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and replacements can be made without departing from the technical principles of the present application, and these improvements and replacements should also be regarded as the protection scope of the present application.

Claims

1. A water injection device for a plasma component separator, characterized by comprising: The utility model relates to a plasma component separator fixing device, which comprises the following parts: a bottom plate; a fixing mechanism arranged on the bottom plate, the fixing mechanism comprising a fixed end and a moving end arranged oppositely, the moving end being movable towards the fixed end to fix the plasma component separator between the fixed end and the moving end, the moving end abutting one end of the plasma component separator having a sealed suction chamber, the suction chamber being communicated with a fiber membrane of the plasma component separator; a vacuum pump joint arranged on the moving end and communicated with the suction chamber, the vacuum pump joint being connected with a vacuum pump, a water pipe joint being arranged on the plasma component separator, one end of the water pipe joint being connected with a water inlet pipe, the other end of the water pipe joint being communicated with a space at the end of the fiber membrane away from the suction chamber to inject water into the space, the vacuum pump joint being capable of sucking water from one side of the fiber membrane into the suction chamber to complete wetting of the fiber membrane; an extraction plate body being arranged at one end of the moving end abutting the plasma component separator, the extraction plate body being formed with the suction chamber, the suction chamber being sized to fit the one end of the plasma component separator; a fluid passage being formed in the extraction plate body to make the vacuum pump joint communicated with the suction chamber.

2. A water priming device for a plasma fractionator according to claim 1, characterized in that: The moving end further comprises a driving device, an output end of the driving device being connected with the extraction plate body to push the extraction plate body towards or away from the plasma component separator.

3. The water priming device for a plasma fractionator according to claim 1, characterized in that: The fixing mechanism further comprises a support assembly, the support assembly comprising a plurality of support plates arranged at intervals, the support plates being formed with groove positions sized to fit the plasma component separator.

4. The water priming device for a plasma fractionator according to claim 1, characterized in that: A stand column is arranged at a side of the moving end away from the plasma component separator, a first mounting plate being arranged on the stand column, a pressure reducing valve being arranged on the first mounting plate.

5. A water priming device for a plasma fractionator according to claim 4, characterized in that: The other end of the stand column relative to the first mounting plate is provided with a second mounting plate, a pressure regulating valve and a filter valve being arranged on the second mounting plate.

6. A water priming device for a plasma fractionator according to claim 5, characterized in that: A communication hole is formed in the middle of the first mounting plate and the middle of the second mounting plate for pipeline communication.

7. The water priming device for a plasma fractionator according to claim 1, characterized in that: The fixed end comprises a fixing groove formed towards the moving end, the fixing groove being sized to fit the one end of the plasma component separator.

8. A water priming device for a plasma fractionator according to any one of claims 1 to 7, characterized in that: The bottom plate is provided with at least two groups of the fixing mechanism, the fixing mechanisms being arranged in parallel, the moving end of each group of the fixing mechanism being provided with the vacuum pump joint.

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