Medical examination sampling device convenient to disassemble and assemble and use method thereof

Abstract

The invention provides a medical examination sampling device convenient to disassemble and assemble and a use method of the medical examination sampling device. The supporting rod is vertically arranged on the fixed seat through a lifter; the mounting shell is detachably arranged on the supporting rod; the sampling pump is detachably arranged in the mounting shell; the collecting pipe is detachably arranged at the input end of the sampling pump through a fixing piece; one end of the output hose is detachably arranged at the output end of the sampling pump; the supporting frame is detachably arranged on the mounting shell; the sample collecting bottle is arranged in the supporting frame, and an input port of the sample collecting bottle is detachably connected with the other end of the output hose. The mounting shell, the sampling pump, the collecting pipe, the output hose, the supporting frame and the sample collecting bottle are all designed to be of a detachable structure, so that the dismounting and mounting process of the device is greatly simplified, and the operation efficiency is improved. In addition, due to the introduction of a distance measurement module, a flow acquisition module and a bubble detection module, the sampling accuracy is improved, and the safety performance of the device is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a medical test sampling device that is easy to assemble and disassemble and a method of using the device. Background Art

[0002] In the field of medical testing, the accuracy of sample collection and operational efficiency directly affect the reliability of diagnostic results. Traditional medical testing sampling devices usually adopt an integrated structural design, and various functional modules (such as sampling pumps, pipelines, collection tubes, etc.) are integrated through fixed connectors or welding, resulting in bulky equipment and complicated disassembly and assembly processes. For example, the support rod and the fixed seat of conventional sampling devices are mostly rigidly connected, and the disassembly of the mounting shell and the sampling pump requires the use of special tools. The connection between the output hose and the sample collection bottle relies on a threaded or snap-on structure, which is time-consuming and prone to component wear due to repeated disassembly and assembly. The replacement of core components (such as sampling pumps and collection tubes) requires the collaboration of multiple people or professional training. For example, traditional sampling pumps are usually fixed to the inside of the equipment by bolts. When disassembling, multiple screws need to be loosened one by one, and a single maintenance takes more than 15 minutes; the connection between the piping system (such as the output hose) and the sample collection bottle lacks a standardized interface. During the replacement process, improper operation may easily lead to liquid leakage or pipeline contamination. Summary of the Invention

[0003] The present invention aims to at least solve the technical problems in the prior art that the device is bulky, cannot be disassembled, and has low disassembly efficiency. In particular, it innovatively proposes a medical test sampling device that is easy to disassemble and assemble, and a method for using the device.

[0004] In order to achieve the above-mentioned object of the present invention, the present invention provides a medical test sampling device that is easy to assemble and disassemble, and the device comprises:

[0005] Fixed seat;

[0006] A support rod is vertically arranged on the fixing seat through a lifter;

[0007] A mounting shell, detachably mounted on the support rod;

[0008] A sampling pump, detachably arranged in the mounting shell;

[0009] A collection tube, detachably mounted on the input end of the sampling pump via a fixing member;

[0010] An output hose, one end of which is detachably mounted on the output end of the sampling pump;

[0011] A support frame, detachably mounted on the mounting shell;

[0012] The sample collecting bottle is arranged in the support frame, and the input port of the sample collecting bottle is detachably connected to the other end of the output hose.

[0013] As an optional embodiment of the present invention, optionally, the device further includes:

[0014] A distance measuring module is provided on the mounting shell and is used to measure the depth data of the collection tube inserted into the sample;

[0015] A control module is connected to the distance measuring module and is used to drive the elevator to adjust the insertion depth of the collection tube according to the depth data.

[0016] As an optional embodiment of the present invention, optionally, the device further includes:

[0017] A flow acquisition module is provided in the sampling pump and connected to the control module, and is used to acquire flow data of the fluid flowing through the sampling pump;

[0018] The control module adjusts the working state of the sampling pump in real time using a control algorithm based on the fluid flow data.

[0019] As an optional embodiment of the present invention, optionally, the control algorithm is expressed as:

[0020]

[0021] Among them, u(k) represents the control quantity output of the kth sampling period, K p represents the proportional coefficient, e(k) represents the deviation between the actual flow rate of the kth sampling and the set flow rate, K i represents the integral coefficient, e(j) is the deviation between the actual flow rate of the jth sampling and the set flow rate, T represents the sampling period, K d represents the differential coefficient, and e(k-1) represents the deviation between the actual flow rate of the k-1th sampling and the set flow rate.

[0022] As an optional embodiment of the present invention, optionally, the device also includes: a bubble detection module, connected to the control module, for detecting whether the fluid flowing through the sampling pump contains bubbles, and sending the detection result to the control module; the control module adjusts the working state of the sampling pump or issues an alarm message according to the bubble detection result.

[0023] As an optional embodiment of the present invention, optionally, the bubble detection module includes:

[0024] The bubble feature extraction unit is used to extract the feature information of bubbles in the fluid, fuse the feature information to obtain a comprehensive risk index, and use the comprehensive risk index to perform a rough screening of bubbles;

[0025] a bubble identification unit connected to the bubble feature extraction unit, and configured to identify whether bubbles exist in the fluid based on the coarse screening result;

[0026] The signal output unit is connected to the bubble identification unit and is used to send an alarm signal to the control module when bubbles are identified in the fluid.

[0027] As an optional embodiment of the present invention, optionally, the bubble feature extraction unit extracts feature information of bubbles in the fluid using the expression:

[0028] RI=w R ·R norm +w A (1-C)+w E ·E d ;

[0029]

[0030] Among them, RI represents the comprehensive risk index, w R 、w A and w E Both represent weight coefficients, R norm represents the reflection coefficient, C represents the circularity index, E d represents the deformation energy, V r Represents the reflected wave voltage amplitude, V i represents the incident wave voltage amplitude, Z2 represents the gas acoustic impedance, Z1 represents the liquid acoustic impedance, A represents the bubble projection area, P represents the bubble contour perimeter, N represents the deformation observation window length, and A t represents the bubble area at time t, A t-1 represents the bubble area at time t-1, P t represents the bubble perimeter at time t, P t-1 Indicates the perimeter of the bubble at time t-1.

[0031] As an optional embodiment of the present invention, optionally, the expression for the bubble identification unit to identify whether there are bubbles in the fluid is:

[0032]

[0033] Among them, B(t) represents the bubble existence judgment at time t, 1 represents the existence of bubbles, 0 represents the existence of bubbles, RI(t) represents the comprehensive risk index at time t, θ H represents the high threshold, θ M represents the intermediate threshold, θ L Indicates the low threshold.

[0034] As an optional embodiment of the present invention, optionally, the device further includes an alarm module connected to the control module, configured to receive alarm information issued by the control module and issue sound, light and electrical information.

[0035] In another aspect, the present invention further provides a method for using the easily disassembled medical test sampling device, comprising the easily disassembled medical test sampling device;

[0036] The method of use also includes:

[0037] S1. Install the sampling pump in the installation shell;

[0038] S2. Place the mounting shell on the support rod of the fixing base;

[0039] S3, setting the collection tube at the input end of the sampling pump through the fixing piece;

[0040] S4. Place one end of the output hose at the output end of the sampling pump, place the sample collecting bottle in the support frame, and connect the input port of the sample collecting bottle to the other end of the output hose;

[0041] S5. The distance measurement module measures and feeds back the depth data to the control module to control and adjust the height of the lifter;

[0042] S6. Using the control module to start the sampling pump, the flow acquisition module monitors the fluid flow of the sampling pump and sends the data to the control module. The control module adjusts the working state of the sampling pump in real time according to the preset control algorithm;

[0043] S7. During the sampling process, the bubble detection module continuously monitors the bubbles in the fluid. If bubbles are detected, an alarm signal is sent to the control module. The control module adjusts the working state of the sampling pump or triggers the alarm module to issue an audible and optical alarm according to the bubble detection result.

[0044] S8. After sampling is completed, turn off the sampling pump, remove the collection tube from the fixing part, take out the sample collection bottle from the support frame, remove the output hose from the output end of the sampling pump, remove the mounting shell from the support rod of the fixing seat, and take out the sampling pump from the mounting shell.

[0045] Beneficial effects of the present invention: The present invention greatly simplifies the disassembly and assembly process of the device and improves operational efficiency by designing the mounting shell, sampling pump, collection tube, output hose, support frame and sample collection bottle as detachable structures. In addition, the introduction of the ranging module, flow acquisition module and bubble detection module not only improves the accuracy of sampling, but also enhances the safety performance of the device. For example, during the sampling process, if the bubble detection module detects the presence of bubbles in the fluid, the control module can respond quickly, adjust the working state of the sampling pump or trigger the alarm module, effectively avoiding sample contamination or sampling failure caused by bubbles. The medical test sampling device that is easy to disassemble and assemble and the method of use of the present invention significantly improve the accuracy and efficiency of medical tests.

[0046] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0048] Figure 1 This is a schematic structural diagram of a medical test sampling device that is easy to assemble and disassemble according to the present invention;

[0049] Figure 2 The present invention is a flowchart of a method for using a medical test sampling device that is easy to assemble and disassemble.

[0050] In the figure: 1. fixing base, 2. support rod, 3. lifter, 4. mounting shell, 5. latch, 6. fixing part, 7. sampling pump, 8. collection tube, 9. output hose, 10. support frame, 11. sample collection bottle. DETAILED DESCRIPTION

[0051] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0052] Example 1

[0053] like Figure 1 As shown, a medical test sampling device that is easy to assemble and disassemble, the device comprises:

[0054] The fixing base 1 of this embodiment is a rectangular parallelepiped structure and is made of metal;

[0055] The support rod 2 is vertically arranged on the fixed base 1 through the lifter 3; the lifter 3 is an electric lifter, which can accurately adjust the height of the support rod 2. The lifter 3 is plug-in connected to the support rod 2. When not in use, the support rod 2 can be pulled out from the lifter 3. A protective tube is also provided on the outside of the support rod 2. The protective tube is fixed to the fixed base 1 by welding. The lifter 3 is installed at the bottom of the protective tube, and the support rod 2 is also in the protective tube to prevent the support rod 2 from shaking left and right when in use, thereby increasing stability.

[0056] The mounting shell 4 is detachably mounted on the support rod 2; Figure 1As shown, the mounting shell 4 is mounted on the top of the support rod 2 through the latch 5. In this embodiment, the latch 5 is a multi-prism structure, such as a hexagonal prism structure, to prevent the mounting shell 4 from rotating during use. Slots that match the latch 5 are respectively provided on the mounting shell 4 and the support rod 2. When installing, just insert the latch 5 into the slot. When disassembling, just pull the latch 5 out of the slot. The disassembly and assembly process of the mounting shell 4 is simple and quick, and no special tools are required, which greatly improves the disassembly and assembly efficiency. The collection tube 8 is detachably mounted on the collection tube through the fixing member 6.

[0057] The sampling pump 7 is detachably mounted within the mounting housing 4. A mounting position for the sampling pump 7 is provided within the mounting housing 4. The sampling pump 7 is detachably mounted to the mounting position using fasteners such as bolts, facilitating maintenance and replacement of the sampling pump 7. Furthermore, the design of the mounting housing 4 also takes heat dissipation into consideration. Heat dissipation holes are provided on the housing to effectively reduce the heat generated by the sampling pump 7 during operation, ensuring stable operation of the device.

[0058] The collection tube 8 is detachably mounted on the input end of the sampling pump 7 via the fixing member 6. The collection tube 8 of this embodiment is a hose, and a connector threadedly connected to the fixing member 6 is installed at the starting end of the collection tube 8. The collection tube 8 can be quickly disassembled and assembled to the input end of the sampling pump 7 by rotating the connector, which is simple and quick to operate. The fixing member 6 is also threadedly connected to the input end of the sampling pump 7, and the fixing member 6 is fixed to the mounting shell 4, thereby ensuring a stable connection of the collection tube 8. In addition, the design of the fixing member 6 also takes sealing performance into consideration, and a sealing ring is provided at the connection to effectively prevent fluid leakage. The specific structure of the fixing member 6 is not limited in this embodiment.

[0059] The output hose 9 has one end that is detachably mounted on the output end of the sampling pump 7. In this embodiment, the output hose 9 is an elastic hose, and the diameter of the output end of the sampling pump 7 is slightly larger than that of the output hose 9. During use, the elastic output hose 9 is placed over the output end of the sampling pump 7 and secured with a clamp or other fastener to ensure smooth fluid transfer between the sampling pump 7 and the output hose 9. Furthermore, the detachable design of the output hose 9 facilitates its cleaning and replacement.

[0060] The support frame 10 is detachably mounted on the mounting shell 4; Figure 1 As shown, the support frame 10 is a rectangular structure with at least two mounting holes for placing the sample bottle 11; a hook is installed on one side of the support frame 10, and a buckle that can cooperate with the hook is installed near the bottom of the mounting shell 4. Through the cooperation of the buckle and the hook, the support frame 10 can be quickly disassembled and assembled to the mounting shell 4 without the use of special tools, which greatly improves the disassembly and assembly efficiency.

[0061] The sample collection bottle 11 is disposed within the support frame 10, and the input port of the sample collection bottle 11 is detachably connected to the other end of the output hose 9. The sample collection bottle 11 can be detachably placed in the mounting hole of the support frame 10. The sample collection bottle 11 of this embodiment is made of transparent material, which facilitates observation of the sample. The bottle mouth of the sample collection bottle 11 is provided with a threaded mouth, which is threadedly connected to the other end of the output hose 9 to ensure that the sample does not leak during transmission.

[0062] like Figure 1 As shown, during use, users can disassemble and assemble components such as the sampling pump 7, collection tube 8, output hose 9, support frame 10, and sample collection bottle 11 according to actual needs to adapt to different sampling environments and requirements. For example, when collecting samples at different depths, users can change the operating depth of the sampling pump 7 by adjusting the height of the lifter 3. Furthermore, because all components are detachably connected, users can quickly replace damaged parts as needed, reducing maintenance costs.

[0063] During use, the collection tube 8 is first placed in the fluid to be sampled, ensuring that the open end of the collection tube 8 is completely immersed in the fluid. Subsequently, the sampling pump 7 is started, and the fluid is then drawn through the collection tube 8 by the sampling pump 7. After being pressurized by the sampling pump 7, the fluid flows along the output hose 9 to the sample collection bottle 11.

[0064] As an optional embodiment of the present invention, optionally, the device further includes:

[0065] A distance measuring module (not shown in the figure) is provided on the mounting shell 4 and is used to measure the depth data of the collection tube 8 inserted into the sample;

[0066] It should be noted that in this embodiment, the ranging module is fixed to the mounting housing 4 via screws. This module is an ultrasonic ranging sensor that accurately measures the depth to which the collection tube 8 is inserted into the sample and provides real-time feedback to the control module, enabling the control module to adjust the height of the elevator 3 according to the preset depth requirement, ensuring that the sampling pump 7 samples at the correct depth. Ultrasonic ranging sensors offer advantages such as accurate measurement, fast response, and a wide range of applications, adapting to the ranging needs of diverse environments and sample types.

[0067] The control module (not shown in the figure) is connected to the distance measuring module and is used to drive the elevator 3 to adjust the insertion depth of the collection tube 8 according to the depth data.

[0068] In this embodiment, the control module can be connected to the distance measuring module, the elevator 3, the sampling pump 7, and the bubble detection module in a wired or wireless manner to achieve data transmission and the issuance of control instructions. The control module can use a high-performance microprocessor or a single-chip microcomputer as its core, with powerful data processing capabilities and control accuracy. Through pre-set control algorithms and programs, the control module can analyze the depth data fed back by the distance measuring module, the fluid flow data of the sampling pump 7, and the bubble detection results of the bubble detection module in real time, and make corresponding adjustments and controls based on the analysis results to ensure the accuracy and stability of the sampling process.

[0069] Using the control module to adjust the insertion depth of the collection tube 8 specifically includes the following steps: First, the control module receives data on the current insertion depth of the collection tube 8 in the sample from the ranging module; then, the control module compares the received depth data with the preset depth requirement. If the current depth is less than the preset depth, the control module sends a command to drive the elevator 3 downward to increase the insertion depth of the collection tube 8; if the current depth is greater than the preset depth, the control module sends a command to drive the elevator 3 upward to decrease the insertion depth of the collection tube 8; until the insertion depth of the collection tube 8 reaches the preset depth requirement. In this way, the collection tube 8 can be ensured to sample at the correct depth, improving the accuracy and stability of sampling.

[0070] As an optional embodiment of the present invention, optionally, the device further includes:

[0071] A flow acquisition module is provided in the sampling pump 7 and connected to the control module, and is used to collect flow data of the fluid flowing through the sampling pump 7;

[0072] The control module adjusts the working state of the sampling pump 7 in real time using a control algorithm based on the fluid flow data.

[0073] In this embodiment, the flow acquisition module is a high-precision flow sensor that can monitor the fluid flow of the sampling pump 7 in real time and send the flow data to the control module in real time. The flow sensor has the advantages of accurate measurement, fast response speed, and wide application range. The flow acquisition module is connected to the control module by wired or wireless means. The control module can adjust the working state of the sampling pump 7 in real time based on the flow data using a preset control algorithm to ensure the stability and accuracy of the sampling. For example, when the flow acquisition module detects that the fluid flow is too large, the control module can send an instruction to reduce the speed of the sampling pump 7 to reduce the fluid flow; when the flow acquisition module detects that the fluid flow is too small, the control module can send an instruction to increase the speed of the sampling pump 7 to increase the fluid flow. In this way, it can be ensured that the sampling pump 7 operates within a stable flow range, thereby improving the stability and accuracy of the sampling.

[0074] As an optional embodiment of the present invention, optionally, the control algorithm is expressed as:

[0075]

[0076] Among them, u(k) represents the control quantity output of the kth sampling period, K p represents the proportional coefficient, e(k) represents the deviation between the actual flow rate of the kth sampling and the set flow rate, K i represents the integral coefficient, e(j) is the deviation between the actual flow rate of the jth sampling and the set flow rate, T represents the sampling period, K d represents the differential coefficient, and e(k-1) represents the deviation between the actual flow rate of the k-1th sampling and the set flow rate.

[0077] As an optional embodiment of the present invention, optionally, the device also includes: a bubble detection module, connected to the control module, for detecting whether the fluid flowing through the sampling pump 7 contains bubbles, and sending the detection result to the control module; the control module adjusts the working state of the sampling pump 7 or issues an alarm message according to the bubble detection result.

[0078] The bubble detection module of this embodiment specifically adopts an ultrasonic sensor (40kHz), utilizes penetrating detection, and uses 40kHz ultrasonic waves to detect the overall bubble content of the pipeline. The ultrasonic sensor has the advantages of high sensitivity, fast response speed, and good stability, and can accurately detect the presence of bubbles in the fluid. When the bubble detection module detects the presence of bubbles in the fluid, it will immediately send the test results to the control module. After receiving the bubble detection results, the control module will quickly analyze and judge and take corresponding measures. If the number of bubbles is small, the control module can adjust the working state of the sampling pump 7, such as reducing the speed or changing the sampling method, to reduce the generation and impact of bubbles. If the number of bubbles is large, the control module will trigger the alarm module, send out an audible and optical alarm message, and remind the operator to deal with it in time to avoid sample contamination or sampling failure.

[0079] As an optional embodiment of the present invention, optionally, the bubble detection module includes:

[0080] The bubble feature extraction unit is used to extract the feature information of bubbles in the fluid, fuse the feature information to obtain a comprehensive risk index, and use the comprehensive risk index to perform a rough screening of bubbles;

[0081] a bubble identification unit connected to the bubble feature extraction unit, and configured to identify whether bubbles exist in the fluid based on the coarse screening result;

[0082] The signal output unit is connected to the bubble identification unit and is used to send an alarm signal to the control module when bubbles are identified in the fluid.

[0083] In this embodiment, the bubble detection module also incorporates a bubble feature extraction unit, a bubble identification unit, and a signal output unit. Upon receiving the bubble detection signal from the ultrasonic sensor, the bubble feature extraction unit first performs bubble feature extraction. During this step, the bubble feature extraction unit analyzes the signal collected by the ultrasonic sensor and extracts characteristic information about the bubbles in the fluid, such as their size, number, and distribution. This characteristic information is then integrated and processed to generate a comprehensive risk index. This index reflects the overall status of bubbles in the fluid, helping to facilitate preliminary bubble screening and assessment.

[0084] The bubble identification unit further identifies the presence of bubbles in the fluid based on the comprehensive risk index provided by the bubble feature extraction unit. If bubbles are detected, the signal output unit immediately sends an alarm signal to the control module. This alarm signal includes relevant information about the bubbles, such as their number and size, enabling the control module to respond accurately.

[0085] After receiving the alarm signal from the bubble detection module, the control module will take appropriate action according to a preset strategy. If the number of bubbles is small, the control module may adjust the operating state of the sampling pump 7 to reduce bubble generation. If the number of bubbles is large, the control module will trigger the alarm module, issuing an audible and visual alarm message to remind the operator to take timely action. This design ensures that bubble problems are detected and handled promptly during the sampling process, avoiding sample contamination or sampling failure.

[0086] As an optional embodiment of the present invention, optionally, the bubble feature extraction unit extracts feature information of bubbles in the fluid using the expression:

[0087] RI=w R ·R norm +w A (1-C)+w E ·E d ;

[0088]

[0089] Among them, RI represents the comprehensive risk index, w R 、w A and w E Both represent weight coefficients, R norm represents the reflection coefficient, C represents the circularity index, E d represents the deformation energy, V r Represents the reflected wave voltage amplitude, V irepresents the incident wave voltage amplitude, Z2 represents the gas acoustic impedance, Z1 represents the liquid acoustic impedance, A represents the bubble projection area, P represents the bubble contour perimeter, N represents the deformation observation window length, and A t represents the bubble area at time t, A t-1 represents the bubble area at time t-1, P t represents the bubble perimeter at time t, P t-1 Indicates the perimeter of the bubble at time t-1.

[0090] As an optional embodiment of the present invention, optionally, the expression for the bubble identification unit to identify whether there are bubbles in the fluid is:

[0091]

[0092] Among them, B(t) represents the bubble existence judgment at time t, 1 represents the existence of bubbles, 0 represents the existence of bubbles, RI(t) represents the comprehensive risk index at time t, θ H represents the high threshold, θ M represents the intermediate threshold, θ L Indicates the low threshold.

[0093] As an optional embodiment of the present invention, optionally, the device further includes an alarm module connected to the control module, configured to receive alarm information issued by the control module and issue sound, light and electrical information.

[0094] In this embodiment, the alarm module is specifically an audible and optical alarm. When the control module determines that the number of bubbles is excessive or other abnormal conditions occur during the sampling process, it immediately sends an alarm message to the alarm module. Upon receiving the alarm message, the alarm module immediately activates the audible and optical alarm, emitting a clear audible and optical alarm signal to alert the operator to promptly address the abnormality. The installation location of the alarm module can be adjusted as needed, and the alarm module can be connected to the control module via wired or wireless communication.

[0095] Example 2

[0096] like Figure 2 As shown, a method for using a medical test sampling device that is easy to assemble and disassemble includes the medical test sampling device that is easy to assemble and disassemble;

[0097] The method of use also includes:

[0098] S1. Install the sampling pump 7 in the mounting housing 4;

[0099] S2. Place the mounting shell 4 on the support rod 2 of the fixing base 1;

[0100] S3, set the collection tube 8 at the input end of the sampling pump 7 through the fixing member 6;

[0101] S4. Place one end of the output hose 9 at the output end of the sampling pump 7, and place the sample collecting bottle 11 in the support frame 10. Connect the input port of the sample collecting bottle 11 to the other end of the output hose 9.

[0102] S5, the distance measurement module measures and feeds back the depth data to the control module, which controls and adjusts the height of the lifter 3;

[0103] S6. The sampling pump 7 is started by the control module. The flow acquisition module monitors the fluid flow of the sampling pump 7 and sends the data to the control module. The control module adjusts the working state of the sampling pump 7 in real time according to a preset control algorithm.

[0104] S8. During the sampling process, the bubble detection module continuously monitors the bubbles in the fluid. If bubbles are detected, an alarm signal is sent to the control module. The control module adjusts the working state of the sampling pump 7 or triggers the alarm module to send an audible and optical alarm message according to the bubble detection result.

[0105] S9. After sampling is completed, turn off the sampling pump 7, remove the collection tube 8 from the fixing part 6, take out the sample collecting bottle 11 from the support frame 10, remove the output hose 9 from the output end of the sampling pump 7, remove the mounting shell 4 from the support rod 2 of the fixing seat 1, and take out the sampling pump 7 from the mounting shell 4.

[0106] It should be noted that in step S9, each part of the device can be easily disassembled and assembled for easy cleaning, maintenance and replacement. For example, the collection tube 8 is detachably arranged at the input end of the sampling pump 7 by the fixing member 6. This design makes it convenient for the user to remove the collection tube 8 when the device is not in use for cleaning or replacement, thereby avoiding the pollution problem caused by the collection tube 8 not being cleaned for a long time. Similarly, one end of the output hose 9 is detachably arranged at the output end of the sampling pump 7, and the other end is connected to the input port of the sample collecting bottle 11. This design also makes it convenient for the user to remove the output hose 9 after the sampling is completed for cleaning or replacement. In addition, the mounting shell 4 is detachably arranged on the support rod 2 of the fixing seat 1, and the sampling pump 7 is detachably arranged in the mounting shell 4. This design not only makes it convenient for the user to clean, maintain and replace the sampling pump 7, but also makes the entire device more flexible and can be assembled and disassembled according to different usage scenarios and needs. During the disassembly and assembly process, the user only needs to follow the steps in the manual to easily complete the disassembly and assembly work without the assistance of professional technicians. Such a design greatly improves the convenience and practicality of the device, making it more suitable for use in fields such as medical testing.

[0107] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and alterations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A medical test sampling device that is easy to assemble and disassemble, characterized in that: The device comprises: Fixed seat (1); A support rod (2) is vertically arranged on the fixing seat (1) via a lifter (3); A mounting shell (4) detachably mounted on the support rod (2); A sampling pump (7) is detachably arranged in the mounting housing (4); A collection tube (8) is detachably mounted on the input end of the sampling pump (7) via a fixing member (6); an output hose (9), one end of which is detachably mounted on the output end of the sampling pump (7); A support frame (10) is detachably mounted on the mounting shell (4); The sample collecting bottle (11) is arranged in the support frame (10), and the input port of the sample collecting bottle (11) is detachably connected to the other end of the output hose (9).

2. The easily disassembled medical test sampling device according to claim 1, characterized in that: The device further comprises: a distance measuring module, arranged on the mounting shell (4), for measuring depth data of the collection tube (8) inserted into the sample; A control module is connected to the distance measuring module and is used to drive the lifter (3) to adjust the insertion depth of the collection tube (8) according to the depth data.

3. The easily disassembled medical test sampling device according to claim 2, characterized in that: The device further comprises: A flow acquisition module is provided in the sampling pump (7) and is connected to the control module, and is used to acquire flow data of the fluid flowing through the sampling pump (7); The control module uses a control algorithm to adjust the working state of the sampling pump (7) in real time based on the fluid flow data.

4. The easily disassembled medical test sampling device according to claim 3, characterized in that: The expression of the control algorithm is: Among them, u(k) represents the control quantity output of the kth sampling period, K p represents the proportional coefficient, e(k) represents the deviation between the actual flow rate of the kth sampling and the set flow rate, K i represents the integral coefficient, e(j) is the deviation between the actual flow rate of the jth sampling and the set flow rate, T represents the sampling period, K d represents the differential coefficient, and e(k-1) represents the deviation between the actual flow rate of the k-1th sampling and the set flow rate.

5. The easily disassembled medical test sampling device according to claim 2, characterized in that: The device further comprises: a bubble detection module connected to the control module, for detecting whether the fluid flowing through the sampling pump (7) contains bubbles, and sending the detection result to the control module; the control module adjusts the working state of the sampling pump (7) or issues an alarm message according to the bubble detection result.

6. The easily disassembled medical test sampling device according to claim 5, characterized in that: The bubble detection module includes: The bubble feature extraction unit is used to extract the feature information of bubbles in the fluid, fuse the feature information to obtain a comprehensive risk index, and use the comprehensive risk index to perform a rough screening of bubbles; a bubble identification unit connected to the bubble feature extraction unit, and configured to identify whether bubbles exist in the fluid based on the coarse screening result; The signal output unit is connected to the bubble identification unit and is used to send an alarm signal to the control module when bubbles are identified in the fluid.

7. The easily disassembled medical test sampling device according to claim 6, characterized in that: The expression for extracting characteristic information of bubbles in the fluid by the bubble feature extraction unit is: RI=w R ·R norm +w A ·(1-C)+w E ·HAVE BEEN d ; Among them, RI represents the comprehensive risk index, w R 、w A and w E Both represent weight coefficients, R norm represents the reflection coefficient, C represents the circularity index, E d represents the deformation energy, V r Represents the reflected wave voltage amplitude, V i represents the incident wave voltage amplitude, Z2 represents the gas acoustic impedance, Z1 represents the liquid acoustic impedance, A represents the bubble projection area, P represents the bubble contour perimeter, N represents the deformation observation window length, and A t represents the bubble area at time t, A t-1 represents the bubble area at time t-1, P t represents the bubble perimeter at time t, P t-1 Indicates the perimeter of the bubble at time t-1.

8. The easily disassembled medical test sampling device according to claim 6, characterized in that: The expression used by the bubble identification unit to identify whether there are bubbles in the fluid is: Among them, B(t) represents the bubble existence judgment at time t, 1 represents the existence of bubbles, 0 represents the existence of bubbles, RI(t) represents the comprehensive risk index at time t, θ H represents the high threshold, θ M represents the intermediate threshold, θ L Indicates the low threshold.

9. The easily disassembled medical test sampling device according to claim 5, characterized in that: The device also includes an alarm module connected to the control module, which is used to receive alarm information sent by the control module and send out sound, light and electricity information.

10. A method for using a medical test sampling device that is easy to assemble and disassemble, characterized in that: A medical test sampling device that is easy to assemble and disassemble as claimed in any one of claims 1 to 9; The method of use also includes: S1. Install the sampling pump (7) in the mounting housing (4); S2. Installing the mounting shell (4) on the support rod (2) of the fixing base (1); S3, placing the collection tube (8) at the input end of the sampling pump (7) through the fixing member (6); S4. One end of the output hose (9) is placed at the output end of the sampling pump (7), and the sample collecting bottle (11) is placed in the support frame (10), and the input port of the sample collecting bottle (11) is connected to the other end of the output hose (9); S5, the distance measurement module measures and feeds back the depth data to the control module, and controls and adjusts the height of the lifter (3); S6. Using the control module to start the sampling pump (7), the flow acquisition module monitors the fluid flow of the sampling pump (7) and sends the data to the control module, and the control module adjusts the working state of the sampling pump (7) in real time according to a preset control algorithm; S8. During the sampling process, the bubble detection module continuously monitors the bubble situation in the fluid. If bubbles are detected, an alarm signal is sent to the control module. The control module adjusts the working state of the sampling pump (7) or triggers the alarm module to send an audible and optical alarm message according to the bubble detection result. S9. After the sampling is completed, turn off the sampling pump (7), remove the collection tube (8) from the fixing member (6), take out the sample collection bottle (11) from the support frame (10), remove the output hose (9) from the output end of the sampling pump (7), remove the mounting shell (4) from the support rod (2) of the fixing seat (1), and take out the sampling pump (7) from the mounting shell (4).

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