Auxiliary positioning and pressure reducing device and method for ultrasonic examination of lymphedema

Abstract

The invention relates to the technical field of medical ultrasonic examination equipment, and provides a lymphedema ultrasonic examination auxiliary positioning and pressure reducing device and method.The lymphedema ultrasonic examination auxiliary positioning and pressure reducing device comprises an examination equipment body, a display screen is fixedly connected to the top end of the examination equipment body, and an adjusting rod is rotatably connected to the top end of the examination equipment body; an indicating lamp is fixedly connected to the top end of the inspection equipment main body, a placing frame is fixedly connected to the right end of the inspection equipment main body, a detector is arranged on the inner circumference of the placing frame, a button is fixedly connected to the right end of the detector, a fixing frame is fixedly connected to the right end of the detector, and a coupling agent discharging pipe is fixedly connected to the inner wall of the fixing frame. The distance between an examination position and a specific part of a human body can be accurately measured through the laser range finder, an accurate positioning reference is provided for ultrasonic examination, examination result errors caused by inaccurate positioning are avoided, the accuracy and contrast of examination results are improved, and doctors can more accurately judge change of an illness state.

Description

Technical Field

[0001] The present invention relates to the technical field of medical ultrasonic examination equipment, and in particular to a lymphedema ultrasonic examination auxiliary positioning and decompression device and method. Background Art

[0002] In the medical field, ultrasound examination has become an important tool for the clinical diagnosis and monitoring of lymphedema due to its non-invasive, real-time, and repeatable nature. Lymphedema patients often experience abnormal accumulation of tissue fluid and structural changes in the lesions. Accurate ultrasound examination is crucial for determining the distribution of the lymphatic network, assessing the degree of edema, and comparing treatment efficacy.

[0003] Currently, traditional ultrasound examinations for lymphedema rely primarily on manual marking or empirical judgment by the physician for positioning, lacking a quantitative positioning reference tool. For example, physicians typically estimate the examination location by touching surface features and using a ruler. This method is significantly influenced by subjective factors and can easily lead to positioning deviations due to human error. Furthermore, differences in operating habits between physicians or changes in the body position of the same patient during multiple examinations can cause misalignment in the examination location, leading to inconsistent ultrasound image acquisition areas and compromising comparative analysis of disease progression. This inaccurate positioning can not only lead to errors in examination results but also make it difficult for physicians to accurately judge the progression of lymphedema or the effectiveness of treatment. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a lymphedema ultrasound examination auxiliary positioning and decompression device and method, which solves the problem that the positioning link mainly relies on manual marking or experience judgment of doctors and lacks quantitative positioning reference tools.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A lymphedema ultrasonic examination auxiliary positioning and decompression device and method, including an inspection device body: a display screen is fixedly connected to the top of the inspection device body, an adjustment rod is rotatably connected to the top of the inspection device body, an indicator light is fixedly connected to the top of the inspection device body, a placement rack is fixedly connected to the right end of the inspection device body, a detector is provided on the inner periphery of the placement rack, a button is fixedly connected to the right end of the detector, the right end of the detector is fixedly connected to the fixing rack, a coupling agent discharge pipe is fixedly connected to the inner wall of the fixing rack, a rotating ball is rotatably connected to the top of the coupling agent discharge pipe, a limit plate is fixedly connected to the top side of the outer wall of the detector, the limit plate is arranged at the top of the placement rack, the top of the detector is connected to the fixing plate through an installation assembly, the top of the fixing plate is fixedly connected to the ultrasonic probe, the middle part of the top of the detector is fixedly connected to the pressure sensor, and the top of the pressure sensor is arranged at the bottom end of the fixing plate.

[0006] Preferably, the adjusting rod comprises a connecting rod, both ends of the connecting rod are fixedly connected with adjusting balls, a plurality of the adjusting balls are rotatably connected with clamps, two clamps are connected through bolts, the right end of the right connecting rod is fixedly connected with a laser range finder, and the bottom end of the left connecting rod is rotatably connected to the top end of the main body of the inspection equipment.

[0007] Preferably, the mounting assembly comprises a positioning tenon fixedly connected to the top end of the detector, the outer wall of the positioning tenon is arranged in the groove at the bottom end of the fixed plate, an interface is formed in the middle of the top end of the detector, a joint is arranged on the inner wall of the interface, the top end of the joint is fixedly connected to the bottom end of the fixed plate, a magnetic ring is fixedly connected to the top end of the detector, another magnetic ring is arranged on the top end of the magnetic ring, and the other magnetic ring is fixedly connected to the bottom end of the fixed plate.

[0008] Preferably, the front end of the storage box is fixedly connected with a coupling agent filling port, and the outer wall of the coupling agent filling port is provided with a cover.

[0009] Preferably, the storage box is connected with the detector through a connecting pipe, and the main body of the inspection equipment is connected with the detector through a connecting line.

[0010] Preferably, the bottom end of the main body of the inspection equipment is provided with wheels through a wheel support.

[0011] A method for assisting positioning and decompression of ultrasonic examination of lymphedema, comprising the following steps:

[0012] Step one: according to the inspection requirements, select a suitable specification of ultrasonic probe, insert the probe joint into the interface at the top end of the detector, and ensure that the fixed plate is stably connected with the detector through the magnetic ring;

[0013] Step two: open the cover, inject coupling agent into the storage box through the coupling agent filling port, close the cover and set the coupling agent filling amount through the display screen;

[0014] Step three: hold the detector, press the button to make the coupling agent be transported from the storage box to the coupling agent discharge pipe through the connecting pipe, and evenly apply the coupling agent on the surface of the patient's skin through the rotating ball;

[0015] Step four: adjust the position of the laser range finder, move the laser range finder to the target area through the adjusting rod, measure the distance between the inspection position and the specific part of the human body, and display the data on the display screen in real time;

[0016] Step five: place the ultrasonic probe at the predetermined positioning point, and the pressure sensor monitors the pressure between the probe and the skin in real time, and feeds back the pressure state through the indicator light;

[0017] Step six: adjust the probe pressure to the green range according to the indicator light prompt, confirm the data on the display screen, and start the ultrasound examination;

[0018] Step seven: during the examination, the pressure sensor, laser range finder and coupling agent system continue to work, real-time feedback of pressure, distance and coupling agent usage to the display screen to ensure the accuracy and stability of the examination.

[0019] Preferably, the installation of the ultrasound probe in step one needs to be aligned with the positioning tenon and the groove to ensure the reliability of mechanical and electrical connection.

[0020] Preferably, the coupling agent in step three needs to cover all the examination areas, and the rotation angle of the rotating ball is manually controlled by the doctor to achieve uniform distribution.

[0021] Preferably, the pressure reference range in step five is preset according to individual differences of patients, the control module automatically compares the data and triggers the corresponding state of the indicator light, where red means excessive pressure, yellow means insufficient pressure, and green means normal pressure.

[0022] Working principle: when performing ultrasound examination of lymphedema, the doctor first selects the appropriate specification of the ultrasound probe according to the examination requirements, inserts the connector on the ultrasound probe into the interface at the top of the detector, connects the ultrasound probe to the detector through the connector and the interface, opens the cover, adds coupling agent into the storage box through the coupling agent filling port, then closes the coupling agent filling port through the cover, sets the required amount of coupling agent through the touch display screen, picks up the detector and presses the button, so that the coupling agent is transported from the storage box to the coupling agent discharge pipe on the detector through the connecting pipe, and then evenly distributed on the patient's skin surface through the rotating ball. Next, hold the laser range finder and move it to the appropriate position through the adjusting rod, measure the distance between the examination position and the specific part of the body through the laser range finder, and transmit the measurement data to the display screen for display. The doctor places the ultrasound probe accurately at the predetermined examination position according to the displayed distance data. During the placement of the ultrasound probe, the pressure sensor monitors the pressure between the ultrasound probe and the skin in real time and transmits the pressure data to the control module. The control module compares the pressure data with the preset reference range and controls the display state of the indicator light according to the comparison result. If the pressure is too large, the indicator light displays red, and if the pressure is too small, the indicator light displays yellow. The doctor adjusts the probe pressure according to the indicator light prompt. When the pressure is within the reference range, the indicator light displays green, and the doctor can check the pressure and distance data through the display screen to confirm that there is no error, and then start the ultrasound examination operation. During the examination, the pressure sensor, laser range finder and coupling agent filling system continue to work, real-time monitor the changes of pressure, distance and the use of coupling agent, and feedback the data to the doctor in time to ensure the accuracy and stability of the examination process.

[0023] The present invention provides a device and method for assisting positioning and decompression of lymphedema using ultrasound. It has the following beneficial effects:

[0024] 1. The present invention can accurately measure the distance between the examination position and the specific part of the human body through the laser rangefinder, providing an accurate positioning reference for ultrasonic examination, avoiding the error of the examination result caused by inaccurate positioning, improving the accuracy and comparability of the examination results, and helping doctors to more accurately judge changes in the condition.

[0025] 2. The present invention can monitor and feedback the pressure status between the ultrasound probe and the skin in real time through the coordinated use of a pressure sensor and an indicator light. The doctor can accurately control the probe pressure according to the indicator light prompts and the pressure data displayed on the display screen, avoiding inspection errors caused by excessive or insufficient pressure, ensuring the quality of the ultrasound image, and improving the accuracy of the diagnosis.

[0026] 3. The interface and connector of this invention can adapt to probes of different specifications to meet different examination requirements. The touch screen display and intuitive indicator light design make operation easier and faster, reducing the difficulty for doctors and improving examination efficiency. In addition, the configuration of the rotating ball, button, and storage box allows for the filling and even application of coupling agent, simplifying the operation process, reducing the tedious steps of manual coupling agent application, and avoiding the problems of coupling agent waste and uneven application.

[0027] 4. The present invention has the function of data storage and export through the display screen, which can facilitate doctors to manage and analyze the distance, pressure and coupling agent usage data of each examination, providing more comprehensive data support for clinical diagnosis and treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A perspective view of the present invention;

[0029] Figure 2 This is a schematic diagram of the rotating ball structure of the present invention;

[0030] Figure 3 Schematic diagram of the pressure sensor structure of the present invention;

[0031] Figure 4 It is a schematic diagram of the storage box structure of the present invention;

[0032] Figure 5 Schematic diagram of the connecting rod structure of the present invention.

[0033] Among them, 1. Inspection equipment body; 2. Wheels; 3. Display screen; 4. Adjustment lever; 401. Clamp; 402. Adjustment ball; 403. Bolt; 404. Connecting rod; 5. Laser rangefinder; 6. Indicator light; 7. Placement rack; 8. Detector; 9. Limit plate; 10. Interface; 11. Connector; 12. Fixing plate; 13. Ultrasonic probe; 14. Magnetic ring; 15. Positioning tenon; 16. Pressure sensor; 17. Fixing rack; 18. Coupling agent discharge pipe; 19. Rotating ball; 20. Button; 21. Connecting pipe; 22. Storage box; 23. Coupling agent filling port; 24. Cover; 25. Connecting wire. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example:

[0036] Please see the attached Figure 1 -Attached Figure 5 , an embodiment of the present invention provides an auxiliary positioning and decompression device for ultrasonic examination of lymphedema, comprising an inspection device body 1: a display screen 3 is fixedly connected to the top of the inspection device body 1, an adjusting rod 4 is rotatably connected to the top of the inspection device body 1, an indicator light 6 is fixedly connected to the top of the inspection device body 1, a placement rack 7 is fixedly connected to the right end of the inspection device body 1, a detector 8 is arranged on the inner periphery of the placement rack 7, a button 20 is fixedly connected to the right end of the detector 8, a fixing rack 17 is fixedly connected to the right end of the detector 8, a coupling agent discharge pipe 18 is fixedly connected to the inner wall of the fixing rack 17, a rotating ball 19 is rotatably connected to the top of the coupling agent discharge pipe 18, a limit plate 9 is fixedly connected to the top side of the outer wall of the detector 8, the limit plate 9 is arranged at the top of the placement rack 7, the top of the detector 8 is connected to the fixing plate 12 through the interface 10 and the joint 11, the top of the fixing plate 12 is fixedly connected to the ultrasonic probe 13, a pressure sensor 16 is fixedly connected to the middle part of the top of the detector 8, and the top of the pressure sensor 16 is arranged at the bottom end of the fixing plate 12;

[0037] Specifically, the inspection equipment body 1 serves as the basic framework of the device, integrating the control module, power supply system and installation interfaces of various functional components. The display screen 3 can display parameters such as distance measurement data, pressure value, and coupling agent residue in real time, and supports touch operation. The indicator light 6 can intuitively feedback the pressure status of the ultrasound probe 13 and the skin through color changes. The laser rangefinder 5 is used to measure the straight-line distance between the inspection position and the specific part of the human body. The detector 8 integrates the ultrasound probe 13 interface, the pressure sensor 16 and the coupling agent delivery control module. The pressure sensor 16 is used to monitor the pressure of the ultrasound probe 13 on the skin in real time. The rotating ball 19 is used to evenly apply the coupling agent to the skin surface to reduce bubble generation. The button 20 triggers the coupling agent delivery and controls the output amount.

[0038] The adjusting rod 4 includes a connecting rod 404, and the left and right ends of the connecting rod 404 are fixedly connected with an adjusting ball 402. The outer periphery of the multiple adjusting balls 402 are rotatably connected with a splint 401. The two splints 401 are connected by a bolt 403. The right end of the right connecting rod 404 is fixedly connected with a laser rangefinder 5. The bottom end of the left connecting rod 404 is rotatably connected to the top of the inspection equipment body 1, wherein the positioning tenon 15 fixedly connected to the top of the detector 8 is located. The outer wall of the positioning tenon 15 is set in the groove at the bottom end of the fixed plate 12. The middle part of the top of the detector 8 is provided with an interface 10, and the inner wall of the interface 10 is provided with a joint 11. The joint 11 The top is fixedly connected to the bottom of the fixed plate 12, the top of the detector 8 is fixedly connected to a magnetic ring 14, the top of the magnetic ring 14 is provided with another magnetic ring 14, the other magnetic ring 14 is fixedly connected to the bottom of the fixed plate 12, the front side of the inner wall of the inspection device body 1 is fixedly connected to a storage box 22, the front end of the storage box 22 is fixedly connected to a coupling agent filling port 23, and the front side of the outer wall of the coupling agent filling port 23 is provided with a cover 24, the storage box 22 is connected to the detector 8 through a connecting pipe 21, the inspection device body 1 is connected to the detector 8 through a connecting line 25, and the bottom end of the inspection device body 1 is installed with wheels 2 through a wheel frame;

[0039] Specifically, the wheel 2 has a braking function that can realize the movement and positioning of the device, and is adapted to the floor material of the hospital environment. After the three-dimensional angle of the laser rangefinder 5 is adjusted by the adjusting rod 4, the fixed angle can be locked by the bolt 403. The magnetic ring 14 is two sets of neodymium iron boron permanent magnet rings with an inner diameter of 50mm and a suction force of ≥50N. They are respectively fixed to the top of the detector 8 and the bottom of the fixed plate 12 to achieve quick disassembly and assembly. The positioning tenon 15 is a cylindrical metal tenon, which precisely matches the groove at the bottom of the fixed plate 12 to prevent the probe from rotating and deviating. The coupling agent can be added to the storage box 22 through the coupling agent filling port 23. The cover 24 can prevent leakage. The connecting line 25 is used to transmit power and signals to connect the inspection equipment body 1 and the detector 8.

[0040] A method for assisting the positioning and decompression of lymphedema by ultrasound examination comprises the following steps:

[0041] Step one: select the appropriate specification of ultrasonic probe 13 according to the inspection requirements, insert the probe connector 11 into the interface 10 at the top of the detector 8, and ensure that the fixed plate 12 is firmly connected with the detector 8 through the magnetic attraction ring 14;

[0042] Step two: open the cover 24, inject coupling agent into the storage tank 22 through the coupling agent filling port 23, close the cover 24 and set the coupling agent filling amount through the display screen 3;

[0043] Step three: hold the detector 8, press the button 20 to make the coupling agent from the storage tank 22 through the connecting pipe 21 to the coupling agent discharge pipe 18, and evenly spread the coupling agent on the surface of the patient's skin by rotating the ball 19;

[0044] Step four: adjust the position of the laser range finder 5, move the laser range finder 5 to the target area by adjusting the rod 4, measure the distance between the inspection position and the specific part of the human body, and the data is displayed on the display screen 3 in real time;

[0045] Step five: place the ultrasonic probe 13 at the predetermined position, and the pressure sensor 16 monitors the pressure between the probe and the skin in real time, and the pressure state is fed back through the indicator light 6;

[0046] Step six: adjust the probe pressure to the green range according to the indicator light prompt, and start the ultrasonic examination after confirming that the data is correct through the display screen 3;

[0047] Step seven: during the examination, the pressure sensor 16, the laser range finder 5 and the coupling agent system continue to work, and the pressure, distance and coupling agent usage are fed back to the display screen 3 in real time to ensure the accuracy and stability of the examination.

[0048] The installation of the ultrasonic probe 13 in step one needs to be aligned with the positioning tenon 15 and the groove to ensure the reliability of mechanical and electrical connection, the coupling agent needs to be evenly distributed in step three, and the rotation angle of the rotating ball 19 is manually controlled by the doctor to achieve uniform distribution, and the pressure reference range is preset according to the individual differences of patients in step five, the control module automatically compares the data and triggers the corresponding state of the indicator light 6, among which red means excessive pressure, yellow means insufficient pressure, and green pressure is normal.

[0049] Example 1:

[0050] Ultrasound examination of lower extremity lymphedema

[0051] Select the ultrasonic probe 13 suitable for the examination of lower extremity lymphedema, and install it on the detector 8 through the magnetic attraction method.

[0052] Turn on the device and initialize the laser rangefinder 5, pressure sensor 16, indicator light 6, display screen 3, and couplant filling system. Check the couplant reservoir 22 and refill if the remaining amount is insufficient. Then close the cap 24 of the couplant filling port 23.

[0053] By pressing the button 20, the quantitative control valve is controlled to open, so that the coupling agent is evenly applied to the skin surface of the patient's lower limb examination area from the rotating ball 19 at the end through the delivery channel.

[0054] Position the device appropriately, aligning the transmitting end of the laser rangefinder 5 with the heel of the patient's lower limb. Adjust the angle of the laser rangefinder 5 so that its laser beam projects perpendicularly onto the body surface. Based on the distance data displayed on the display 3, move the ultrasound probe 13 to the examination position at a predetermined distance from the heel. While positioning the probe, observe the status of the indicator light 6. If the indicator light 6 is red, slowly adjust the probe pressure until the indicator light 6 turns green.

[0055] After confirming that the pressure and distance data displayed on Display 3 are within normal ranges, begin the ultrasound examination for lower extremity lymphedema. During the examination, continuously monitor changes in pressure, distance, and coupling fluid usage data, and make timely adjustments if any abnormalities are found.

[0056] After the examination is completed, the distance, pressure and coupling agent usage data of this examination are stored in the device's memory and exported to the computer through the USB interface for subsequent data analysis and case management.

[0057] Example 2:

[0058] Ultrasound examination of upper limb lymphedema

[0059] Replace the ultrasonic probe 13 suitable for upper limb lymphedema examination and install it on the detector 8, ensuring that it is firmly installed.

[0060] Turn on the device and perform initialization. Check the couplant reservoir 22, refill the couplant, and close the sealing cover 24.

[0061] By pressing the button 20, the quantitative control valve is controlled to open, so that the coupling agent is evenly applied to the skin surface of the patient's lower limb examination area from the rotating ball 19 at the end through the delivery channel.

[0062] Aim the transmitting end of the laser rangefinder 5 at a specific part of the patient's upper limb (such as the ulnar styloid process), and adjust the angle of the laser rangefinder 5 so that the laser beam is accurately projected onto the patient's surface. Based on the distance data displayed on the display 3, position the ultrasound probe 13 at the examination position at a predetermined distance from the ulnar styloid process. During placement, adjust the probe pressure by observing the color of the indicator light 6, so that the indicator light 6 displays green.

[0063] After confirming that the pressure and distance data are normal, the upper limb lymphedema ultrasound examination begins. During the examination, the data on the display screen 3 is monitored in real time to ensure the accuracy of the examination.

[0064] After the inspection is completed, the inspection data will be stored and exported to complete the inspection operation.

[0065] 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 variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A lymphedema ultrasound examination auxiliary positioning and decompression device, characterized in that: The invention comprises an inspection device body (1): a display screen (3) is fixedly connected to the top of the inspection device body (1), an adjusting rod (4) is rotatably connected to the top of the inspection device body (1), an indicator light (6) is fixedly connected to the top of the inspection device body (1), a placement rack (7) is fixedly connected to the right end of the inspection device body (1), a detector (8) is arranged on the inner periphery of the placement rack (7), a button (20) is fixedly connected to the right end of the detector (8), a fixing rack (17) is fixedly connected to the inner wall of the fixing rack (17), and a button (20) is fixedly connected to the right end of the detector (8). A coupling agent discharge pipe (18) is connected, and the top of the coupling agent discharge pipe (18) is rotatably connected to a rotating ball (19). The top side of the outer wall of the detector (8) is fixedly connected to a limit plate (9), and the limit plate (9) is arranged at the top of the placement rack (7). The top of the detector (8) is connected to a fixed plate (12) through a mounting assembly, and the top of the fixed plate (12) is fixedly connected to an ultrasonic probe (13). The middle part of the top of the detector (8) is fixedly connected to a pressure sensor (16), and the top of the pressure sensor (16) is arranged at the bottom end of the fixed plate (12).

2. The lymphedema ultrasound examination auxiliary positioning and decompression device according to claim 1, characterized in that: The adjusting rod (4) comprises a connecting rod (404), the left and right ends of the connecting rod (404) are fixedly connected to adjusting balls (402), the outer peripheries of the plurality of adjusting balls (402) are rotatably connected to clamping plates (401), and the two clamping plates (401) are connected via bolts (403). The right end of the right connecting rod (404) is fixedly connected to a laser rangefinder (5), and the bottom end of the left connecting rod (404) is rotatably connected to the top of the inspection device body (1).

3. The lymphedema ultrasound examination auxiliary positioning and decompression device according to claim 1, characterized in that: The mounting assembly includes a positioning tenon (15) fixedly connected to the top of the detector (8), the outer wall of the positioning tenon (15) is arranged in a groove at the bottom end of the fixed plate (12), an interface (10) is provided in the middle of the top of the detector (8), a joint (11) is provided on the inner wall of the interface (10), the top of the joint (11) is fixedly connected to the bottom end of the fixed plate (12), a magnetic ring (14) is fixedly connected to the top of the detector (8), another magnetic ring (14) is provided at the top of the magnetic ring (14), and the other magnetic ring (14) is fixedly connected to the bottom end of the fixed plate (12).

4. The lymphedema ultrasound examination auxiliary positioning and decompression device according to claim 1, characterized in that: A storage box (22) is fixedly connected to the front side of the inner wall of the inspection equipment body (1), a coupling agent filling port (23) is fixedly connected to the front end of the storage box (22), and a sealing cover (24) is provided on the front side of the outer wall of the coupling agent filling port (23).

5. The lymphedema ultrasound examination auxiliary positioning and decompression device according to claim 4, characterized in that: The storage box (22) is connected to the detector (8) via a connecting pipe (21), and the inspection equipment body (1) is connected to the detector (8) via a connecting line (25).

6. The lymphedema ultrasound examination auxiliary positioning and decompression device according to claim 1, characterized in that: The bottom end of the inspection equipment body (1) is provided with wheels (2) via a wheel frame.

7. A method for assisting positioning and decompression of lymphedema by ultrasound examination, using the device for assisting positioning and decompression of lymphedema by ultrasound examination according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: Select an ultrasonic probe (13) of appropriate specifications according to the inspection requirements, insert the probe connector (11) into the interface (10) at the top of the detector (8), and ensure that the fixing plate (12) is firmly connected to the detector (8) through the magnetic ring (14); Step 2: Open the cover (24), inject the coupling agent into the storage box (22) through the coupling agent filling port (23), close the cover (24) and set the coupling agent filling amount through the display screen (3); Step 3: Hold the tester (8) and press the button (20) to transfer the coupling agent from the storage box (22) to the coupling agent discharge pipe (18) through the connecting pipe (21), and evenly apply the coupling agent to the patient's skin surface by rotating the ball (19); Step 4: Adjust the position of the laser rangefinder (5), move the laser rangefinder (5) to the target area through the adjustment rod (4), measure the distance between the inspection position and the specific part of the human body, and display the data in real time on the display screen (3); Step 5: Place the ultrasound probe (13) at the predetermined site, and the pressure sensor (16) monitors the pressure between the probe and the skin in real time, and feeds back the pressure status through the indicator light (6); Step 6: Adjust the probe pressure to the green range according to the indicator light, confirm the data is correct through the display (3), and start the ultrasonic examination; Step 7: During the inspection process, the pressure sensor (16), laser rangefinder (5) and coupling agent system continue to work, and provide real-time feedback of pressure, distance and coupling agent usage to the display screen (3) to ensure the accuracy and stability of the inspection.

8. The method for ultrasound-assisted positioning and decompression of lymphedema according to claim 7, characterized in that: The installation of the ultrasonic probe (13) in step 1 needs to be aligned with the groove through the positioning tenon (15) to ensure the reliability of mechanical and electrical connection.

9. The method for ultrasound-assisted positioning and decompression of lymphedema according to claim 7, characterized in that: In step 3, the coupling agent should be applied to cover the entire examination area, and the rotation angle of the rotating ball (19) is manually controlled by the doctor to achieve uniform distribution.

10. The method for ultrasound-assisted positioning and decompression of lymphedema according to claim 7, characterized in that: The pressure reference range in step 5 is preset according to individual differences of patients, and the control module automatically compares the data and triggers the corresponding state of the indicator light (6), where red indicates excessive pressure, yellow indicates insufficient pressure, and green indicates normal pressure.

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