Ultrasonic detection device for median nerve of water medium

By using a water-medium median nerve ultrasound detection device, which employs a linear drive mechanism and water-medium coupling technology, the problems of inaccurate measurement and arm fatigue caused by manual hand operation have been solved, achieving efficient and accurate median nerve stiffness detection.

CN224269334UActive Publication Date: 2026-05-26THE UNIVERSITY-TOWN HOSPITAL AFFILIATED TO CHONGQING MEDICAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE UNIVERSITY-TOWN HOSPITAL AFFILIATED TO CHONGQING MEDICAL UNIVERSITY
Filing Date
2025-04-08
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In existing technologies, when manually holding an ultrasound probe to measure the stiffness of the median nerve, the measurement is prone to inaccuracy due to pressure, and the operator's arm fatigue is caused by holding it for a long time.

Method used

The median nerve ultrasound detection device using water medium employs a linear drive mechanism to move the ultrasound probe in a water tank, avoiding contact between the probe and the skin. Water is used as the coupling medium, and an ultraviolet disinfection system is combined to ensure the safety and cleanliness of the water.

Benefits of technology

It improves the accuracy of median nerve stiffness measurement, reduces the labor intensity of operators, saves water consumption for testing, and ensures the safety and cleanliness of the water.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an ultrasonic detection device for median nerves of a water medium. The detection groove and the linear driving device are arranged on the top face of the counter, the probe clamp is connected with the linear driving device, the first water tank and the second water tank are arranged in the counter, the first water pump is used for pumping water in the first water tank into the detection groove, and the drainage pipe is connected with the bottom of the detection groove and the second water tank. The second water pump is used for pumping water in the second water tank into the first water tank; and the ultraviolet disinfection lamp is arranged on the second water tank. According to the utility model, water is used as an ultrasonic propagation medium, so that a good coupling effect can be achieved, the ultrasonic probe is not contacted with the skin of the forearm, the problem that the ultrasonic probe compresses the median nerve is avoided, and the accuracy of detecting the hardness of the median nerve can be improved; the ultrasonic probe does not need to be manually held in the detection working process, and the problem that arm fatigue is easily caused by manually holding the probe is solved.
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Description

Technical Field

[0001] This utility model relates to a medical device, and more particularly to an ultrasonic detection device. Background Technology

[0002] The median nerve is composed of the medial and lateral bundles (C5-T1 nerve roots) of the brachial plexus. It extends along the upper arm and forearm to the palm, innervating most of the flexor muscles of the forearm, the thenar muscles of the hand (such as the thumb opponens), and the skin sensation of the palm and fingers.

[0003] Carpal tunnel syndrome and diabetic peripheral neuropathy can both cause changes in median nerve stiffness, making median nerve stiffness measurement crucial for diagnosis and evaluation. Shear wave elastography (SWE) is a non-invasive ultrasound technique for quantitatively assessing tissue stiffness. Measuring median nerve stiffness using SWE requires a high level of skill from the operator. During the measurement, the operator must maintain stability while moving the ultrasound probe along the arm, avoiding pressure on the skin. Pressure on the median nerve increases its pre-stiffness, leading to inaccurate measurements. Because the median nerve is located superficially and close to the skin, it is easily affected by probe pressure. Furthermore, different operators apply varying pressure, resulting in inconsistent pre-stiffness and ultimately inaccurate and unstable measurements. While existing technologies can reduce probe pressure on the median nerve during median nerve measurements by applying coupling gel to facilitate more accurate images, this process is time-consuming and laborious, and applying the gel to the entire area is inconvenient when observing the entire median nerve segment. Furthermore, the operator's arm is easily fatigued during prolonged probe holding and observation. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a water-medium median nerve ultrasound detection device to solve the technical problems of existing methods that use a handheld ultrasound probe to measure median nerve stiffness, which easily leads to reduced measurement accuracy due to pressure exerted by the ultrasound probe on the median nerve, and the technical problems of arm fatigue caused by prolonged handheld ultrasound probe measurement.

[0005] This utility model of aqueous median nerve ultrasound detection device includes a counter, a detection slot on the top surface of the counter, a linear drive device on the top surface of the counter and arranged parallel to the detection slot, a probe clamp connected to the linear drive device for fixing the ultrasound probe, a first water tank inside the counter, a first water pump for pumping water from the first water tank into the detection slot, a first valve on the water pipe at the outlet of the first water pump, a second water tank inside the counter, a drain pipe connecting the bottom of the detection slot to the second water tank, a second valve on the drain pipe, a second water pump for pumping water from the second water tank into the first water tank, and an ultraviolet disinfection lamp on the second water tank.

[0006] Furthermore, an electric heater and a temperature sensor for detecting water temperature are installed on the first water tank, and a temperature display connected to the temperature sensor is installed on the side of the counter.

[0007] Furthermore, a filter is installed on the water pipe connecting the outlet of the second water pump to the first water tank.

[0008] Furthermore, the linear drive device includes a crossbeam, a slide rail mounted on the crossbeam, a slide table that slides with the slide rail, a left shaft seat and a right shaft seat mounted at both ends of the crossbeam, a left shaft mounted on the left shaft seat, a left synchronous pulley mounted on the left shaft, a right shaft mounted on the right shaft seat, a right synchronous pulley mounted on the right shaft, a motor mounted on the right shaft seat to drive the right shaft to rotate, and a synchronous belt connecting the left synchronous pulley and the right synchronous pulley. A transmission plate connected to the synchronous belt is provided on the slide table.

[0009] Furthermore, the transmission plate is provided with a pad that is connected to the probe clamp. The probe clamp includes a connecting plate with a vertical adjustment hole and a U-shaped elastic clamp provided at the lower end of the connecting plate for holding the ultrasonic probe. The connecting plate is fixed to the pad by screws provided in the vertical adjustment hole.

[0010] The beneficial effects of this utility model are:

[0011] 1. The present invention relates to a water-medium median nerve ultrasound detection device, which uses water as the ultrasonic wave propagation medium, achieving a good coupling effect and preventing the ultrasound probe from contacting the forearm skin, thus avoiding the problem of the ultrasound probe compressing the median nerve and improving the accuracy of median nerve stiffness detection.

[0012] 2. The water-medium median nerve ultrasound detection device of this utility model does not require manual holding of the ultrasound probe during the detection process, thus avoiding the problem of arm fatigue caused by manual holding of the probe.

[0013] 3. The water-medium median nerve ultrasound detection device of this utility model can recycle and reuse the detection water, which can greatly save the amount of detection water. In addition, it is equipped with an ultraviolet lamp to disinfect the recycled water in the second water tank, ensuring the safety of the recycled water. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the water-medium median nerve ultrasound detection device in the embodiment.

[0015] Figure 2 This is a cross-sectional view of the water-medium median nerve ultrasound detection device in the embodiment.

[0016] Figure 3 This is a schematic diagram of the installation of an ultrasonic probe. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] As shown in the figure, the water-medium median nerve ultrasound detection device of this embodiment includes a counter 1, a detection slot 2 set on the top surface of the counter, a linear drive device set on the top surface of the counter and arranged parallel to the detection slot, a probe clamp 3 connected to the linear drive device for fixing the ultrasound probe, a first water tank 4 set inside the counter, a first water pump 5 for pumping water from the first water tank into the detection slot, a first valve 6 set on the water pipe at the outlet end of the first water pump, a second water tank 7 set inside the counter, a drain pipe 8 connecting the bottom of the detection slot to the second water tank, a second valve 9 set on the drain pipe, a second water pump 10 for pumping water from the second water tank into the first water tank, and an ultraviolet disinfection lamp 11 set on the second water tank.

[0019] In this embodiment, the linear drive device includes a crossbeam 12, a slide rail 13 mounted on the crossbeam, a slide table 14 that slides with the slide rail, a left shaft seat 15 and a right shaft seat 16 mounted at both ends of the crossbeam, a left shaft 17 mounted on the left shaft seat, a left synchronous pulley 18 mounted on the left shaft, a right shaft 19 mounted on the right shaft seat, a right synchronous pulley 20 mounted on the right shaft, a motor 21 mounted on the right shaft seat to drive the right shaft to rotate, and a synchronous belt 22 connecting the left and right synchronous pulleys. A transmission plate 23 connected to the synchronous belt is mounted on the slide table. A support 24 for supporting the crossbeam is mounted on the top surface of the counter.

[0020] The method for detecting median nerve stiffness using the water-medium median nerve ultrasound detection device in this embodiment is as follows:

[0021] First, open the first valve 6 and the first water pump 5 to pump water from the first water tank into the detection tank 2. After pumping, close the first water pump 5 and the first valve 6. Then, the subject places their forearm into the water tank. Next, control the linear drive device to drive the ultrasound probe 25 on the probe clamp 3 to move along the arm for detection. After the detection is completed, the patient removes their forearm from the water tank. Then, open the second valve 9 to drain the water from the detection tank 2 into the second water tank. After draining, close the second valve 9. Then, turn on the ultraviolet disinfection lamp 11 to disinfect the water in the second water tank. After disinfection, turn on the second water pump 10 to pump the water from the second water tank into the first water tank.

[0022] In this embodiment, a linear drive device is used to drive the ultrasonic probe 25 on the probe holder 3 to move along the length of the water tank. This eliminates the need for manual handling of the ultrasonic probe, reducing operator workload and preventing hand fatigue. In different embodiments, the linear drive device can also take other forms, such as rodless cylinders, electric lead screw slides, linear motors, etc. In this embodiment, the water-medium median nerve ultrasound detection device uses water as the ultrasonic wave propagation medium, achieving good coupling and preventing the ultrasonic probe from contacting the forearm skin, thus avoiding pressure on the median nerve and improving the accuracy of median nerve stiffness detection. The detection water is recycled and reused, significantly saving water consumption. Furthermore, an ultraviolet lamp is used to disinfect the recycled water in the second water tank, ensuring the safety of the recycled water.

[0023] As an improvement to the above embodiment, an electric heater 26 and a temperature sensor 27 for detecting water temperature are provided on the first water tank, and a temperature display 28 connected to the temperature sensor is provided on the side of the counter. When conducting tests in cold weather, this improvement can heat the test water to a suitable temperature through the electric heater 26, ensuring the comfort of the test subject's forearm in the water.

[0024] As an improvement to the above embodiment, a filter 29 is provided on the water pipe connecting the outlet of the second water pump and the first water tank. This improvement removes impurities from the water through the filter 29, further ensuring the cleanliness of the test water.

[0025] As an improvement to the above embodiment, the transmission plate is provided with a pad 30 connected to the probe clamp. The probe clamp 3 includes a connecting plate 32 with a vertical adjustment hole 31 and a U-shaped elastic clip 33 disposed at the lower end of the connecting plate for clamping the ultrasonic probe. The connecting plate is fixed to the pad by screws disposed in the vertical adjustment hole. In this improvement, the installation position of the probe clamp 3 can be adjusted up and down, thus better adapting to the detection of different sizes of arms to ensure that the position between the probe clamp 3 and the arm is appropriate. Moreover, the U-shaped elastic clip 33 is used to clamp and fix the probe clamp 3, making the fixing operation simple and convenient.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. Apparatus for median nerve ultrasound detection in aqueous medium, characterized by: The device includes a counter, a testing slot on the top surface of the counter, a linear drive device on the top surface of the counter and arranged parallel to the testing slot, a probe clamp connected to the linear drive device for fixing an ultrasonic probe, a first water tank inside the counter, a first water pump for pumping water from the first water tank into the testing slot, a first valve on the water pipe at the outlet of the first water pump, a second water tank inside the counter, a drain pipe connecting the bottom of the testing slot to the second water tank, a second valve on the drain pipe, a second water pump for pumping water from the second water tank into the first water tank, and an ultraviolet disinfection lamp on the second water tank.

2. The apparatus for ultrasound detection of the median nerve in the water medium according to claim 1, characterized in that: The first water tank is equipped with an electric heater and a temperature sensor for detecting water temperature, and a temperature display connected to the temperature sensor is installed on the side of the counter.

3. The apparatus for ultrasound detection of the median nerve in the water medium according to claim 1, characterized in that: A filter is installed on the water pipe connecting the outlet of the second water pump to the first water tank.

4. The apparatus for ultrasound detection of the median nerve in the water medium according to claim 1, characterized in that: The linear drive device includes a crossbeam, a slide rail mounted on the crossbeam, a slide table that slides with the slide rail, a left shaft seat and a right shaft seat mounted at both ends of the crossbeam, a left shaft mounted on the left shaft seat, a left synchronous pulley mounted on the left shaft, a right shaft mounted on the right shaft seat, a right synchronous pulley mounted on the right shaft, a motor mounted on the right shaft seat to drive the right shaft to rotate, and a synchronous belt connecting the left synchronous pulley and the right synchronous pulley. A transmission plate connected to the synchronous belt is mounted on the slide table.

5. The apparatus for ultrasound detection of the median nerve in the water medium according to claim 4, characterized in that: The transmission plate is provided with a pad that is connected to the probe clamp. The probe clamp includes a connecting plate with a vertical adjustment hole and a U-shaped elastic clamp provided at the lower end of the connecting plate for holding the ultrasonic probe. The connecting plate is fixed to the pad by screws provided in the vertical adjustment hole.