A visual, electrically stimulated esophageal motility assessment device

Abstract

This invention relates to the field of medical device technology and discloses a visual, electrically stimulated esophageal motility assessment device, including a control host and a catheter assembly. The control host is equipped with a control panel and an interactive panel, and internally includes a control valve one, a control valve two, an air pump, a pressure sensing module, a processor, and a multi-port connector. This invention integrates a visual component and a position sensing module to acquire real-time images of the esophagus and accurately locate the catheter, avoiding distortion of detection parameters caused by positioning deviations. It is suitable for patients with anatomical abnormalities. The invention features a ring-shaped electrical stimulation module, which, combined with non-electrical stimulation detection, can differentiate between myogenic and neurogenic motility disorders, supporting disease classification diagnosis. It employs a medical-grade thin-walled silicone coating and a segmented inflation structure to adaptively fit different esophageal diameters, improving detection stability. It also has three working modes and multiple detection functions to meet various clinical needs, effectively overcoming the inherent limitations of existing devices.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a visual, electrically stimulated esophageal motility assessment device. Background Technology

[0002] Esophageal motility is a core indicator for assessing the physiological state of the esophagus and diagnosing esophageal motility disorders. Esophageal contraction pressure testing is a core means of clinically assessing esophageal motility. It can be used to determine esophageal peristalsis and sphincter contraction and relaxation function, diagnose achalasia, gastroesophageal reflux disease, nutcracker esophagus, diffuse esophageal spasm and other motility disorders, and can also help determine the extent of esophageal involvement by systemic diseases. It can also be used to assess the functional recovery after esophageal surgery, and can clarify the pathological mechanisms of clinical symptoms such as dysphagia, non-cardiac retrosternal pain, and food retention.

[0003] Currently, the mainstream clinical devices for esophageal motility testing are high-resolution esophageal manometry devices. These devices involve inserting a manometry catheter via the nose or mouth, collecting esophageal contraction pressure data in response to physiological stimulation from swallowing water. The location of the sensor is determined by combining the scale markings on the catheter surface with changes in the pressure waveform, thus enabling routine assessment of esophageal motility. This is a commonly used technique in the diagnosis and treatment of esophageal diseases. However, existing esophageal motility testing devices have many inherent limitations in practical clinical applications. In patients with anatomical abnormalities such as hiatal hernia or gastroptosis, relying solely on scale markings and pressure waveforms for location determination is prone to errors, and the pressure waveform is easily distorted, making it impossible to accurately confirm the actual position of the sensing module. The current device directly leads to distortion of the dynamic detection parameters, affecting the accuracy of the diagnostic results. It can only induce esophageal peristalsis through swallowing stimulation. However, swallowing stimulation depends on the complete physiological reflex of nerve perception, signal transmission and muscle contraction. The detection results cannot distinguish whether the dynamic disorder is caused by myogenic problems of abnormal smooth muscle contraction or neurogenic problems of nerve signal transmission disorders. It is difficult to complete the in-depth subtyping diagnosis of the disease and cannot provide effective support for precise clinical treatment. In addition, the traditional manometry catheter adopts a fixed diameter structure, which has inherent defects that are difficult to balance. When the catheter diameter is too small, the tube wall cannot effectively fit with the esophageal wall, resulting in poor pressure signal acquisition and difficulty in obtaining stable and reliable detection data. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a visual, electrically stimulated esophageal motility assessment device. By integrating visual positioning, electrically stimulated contraction, and segmented inflatable fitting structure, it overcomes the inherent limitations of existing devices. The invention also discloses a complete technical solution to facilitate implementation by those skilled in the art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A visual, electrically stimulated esophageal motility assessment device includes a control unit and a catheter assembly. The control unit is equipped with a control panel and an interactive panel, and internally includes a first control valve, a second control valve, an air pump, a pressure sensing module, a processor, and a multi-port connector. The insertion end of the catheter assembly is equipped with a position sensing module, a visualization component, and an electrical stimulation module. The processor is signal-connected to the control panel, interactive panel, position sensing module, visualization component, electrical stimulation module, air pump, pressure sensing module, first control valve, and second control valve. The catheter assembly is controllably connected to the air pump and pressure sensing module through first control valve and second control valve, respectively.

[0006] Preferably, the catheter assembly includes a catheter body, a covering layer, and a partition. The covering layer covers the outside of the catheter body, and the partition divides the inside of the covering layer into multiple independent chambers. The catheter assembly also has multiple air tubes that communicate with each chamber. The positions where the air tubes pass through the partition are sealed.

[0007] Preferably, the covering layer is a medical-grade thin-walled silicone tube, and the air guide tube is arranged along the axial direction of the main body of the catheter. By inflating different chambers, segmental pressurization and segmental pressure detection of the esophagus can be achieved. By inflating, it can adaptively fit different esophageal inner diameters, avoid damage to the esophageal mucosa, and at the same time ensure stable acquisition of dynamic data of each segment.

[0008] Preferably, one control valve and one control valve are provided. The control valve is a multi-port solenoid valve with one inlet and multiple outlets, and its multiple outlets are connected to each of the air guide pipes. Its inlet is connected to the control valve. The control valve is connected to the air pump and the pressure sensing module, which can realize single-segment esophageal dynamic detection and is suitable for local detection scenarios.

[0009] Preferably, multiple control valves, control valves, and pressure sensing modules are provided. Each air guide tube is connected to a corresponding control valve, and each control valve is connected to a corresponding pressure sensing module and control valve. Each control valve is connected to an air pump after being combined through a multi-port connector. This enables simultaneous detection of multiple esophageal segments, improves detection efficiency, and is suitable for overall esophageal motility assessment scenarios.

[0010] Preferably, the control panel is equipped with a control switch, which is electrically connected to the processor and is used to adjust the discharge power of the electrical stimulation module within a safe range. This allows for flexible adjustment of the electrical stimulation intensity while limiting the safe range to avoid electric shock injuries and ensure safe clinical use.

[0011] Preferably, the electrical stimulation module is a ring-shaped discharge electrical stimulation electrode assembly, which can release a weak current to achieve esophageal stimulation or electrical stimulation therapy, can release the current evenly to avoid damage to the mucosa, and at the same time realize disease classification diagnosis and auxiliary treatment, thus expanding the clinical application of the device.

[0012] Preferably, the interactive panel is bidirectionally connected to the processor. The interactive panel is provided with mode 1, mode 2, and mode 3 selection units for switching between no-electrical-stimulation detection, electrical-stimulation-assisted detection, and electrical-stimulation treatment working modes. It can switch working modes, is easy to operate, and adapts to different clinical detection and treatment needs.

[0013] Preferably, the pressure sensing module is equipped with a sealed sensor connection tube. The sealing can avoid data distortion caused by air leakage, ensure accurate pressure detection results, and facilitate analysis by medical staff. The processor calculates the pressure change value caused by esophageal contraction by comparing the difference between the detected pressure and the no-load reference pressure.

[0014] Preferably, the visualization component is a visualization optical fiber. The visualization optical fiber works with the position sensing module to confirm the insertion position of the catheter assembly. The control host can be connected to an external power supply to power all electrical modules. The visualization optical fiber and the position sensing module work together to accurately confirm the position of the catheter, avoid positioning deviation, and ensure the continuous and stable operation of the device.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention integrates visualization components and a position sensing module to acquire real-time images of the esophagus and accurately locate the catheter, avoiding distortion of detection parameters caused by positioning deviations. It is suitable for patients with anatomical abnormalities. The invention features a ring-shaped electrical stimulation module, which, combined with non-electrical stimulation detection, can differentiate between myogenic and neurogenic motor disorders, supporting disease classification diagnosis. It employs a medical-grade thin-walled silicone coating and a segmented inflatable structure to adaptively fit different esophageal diameters, improving detection stability. Furthermore, it has three working modes and multiple detection functions to meet various clinical needs, effectively overcoming the inherent limitations of existing devices. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a structural view of the control host of the present invention; Figure 3 For the present invention Figure 1 Enlarged view at point A in the middle; Figure 4 This is a positional view of the air duct and the partition portion of the present invention; Figure 5This is a schematic diagram of the relevant structure of a single valve group according to Scheme 1 of the present invention; Figure 6 This is a schematic diagram of the relevant structure of the multi-valve assembly in Scheme 2 of the present invention; Figure 7 This is a schematic diagram of the control connection of the present invention.

[0018] Drawing number descriptions: 1. Control host; 11. Control panel; 12. Adjustment switch; 13. Interactive panel; 2. Catheter assembly; 21. Catheter body; 22. Covering layer; 23. Partition; 24. Air tube; 25. Position sensing module; 26. Visualization component; 27. Electrical stimulation module; 3. Control valve one; 4. Control valve two; 5. Air pump; 6. Pressure sensing module; 7. Processor; 8. Multi-port connector. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0021] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this invention.

[0022] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0023] Example 1: Please see Figure 1-5A visual, electrically stimulated esophageal motility assessment device includes a control unit 1 and a catheter assembly 2. The control unit 1 is the core of the whole machine control, with an external control panel 11 and an interactive panel 13. Internally, it integrates control valve 1 3, control valve 2 4, air pump 5, pressure sensing module 6, processor 7, and multi-port connector 8. The catheter assembly 2 is the actuator that extends into the human esophagus. Its insertion end integrates a position sensing module 25, a visualization component 26, and an electrical stimulation module 27. The processor 7 establishes bidirectional signal connections with the control panel 11, interactive panel 13, position sensing module 25, visualization component 26, electrical stimulation module 27, air pump 5, pressure sensing module 6, control valve 1 3, and control valve 2 4 through signal lines to realize command issuance and data feedback. The internal air path of the catheter assembly 2 achieves controllable connection and switching between the inflation path of the air pump 5 and the pressure measurement path of the pressure sensing module 6 through the switching of control valve 1 3 and control valve 2 4.

[0024] The catheter assembly 2 is specifically composed of a catheter body 21, a covering layer 22, and a partition 23. The covering layer 22 is completely covered on the outer peripheral wall of the catheter body 21. The partition 23 is spaced along the length of the catheter body 21 and is sealed and fixed to the inner wall of the covering layer 22, dividing the internal space of the covering layer 22 into multiple independent and sealed chamber structures. Multiple air tubes 24 are arranged inside the catheter assembly 2, and the number of air tubes 24 corresponds one-to-one with the number of independent chambers. The air outlet of each air tube 24 extends into the corresponding independent chamber. The air tubes 24 are sealed and fixed at the position where they pass through the partition 23 with medical sealant or sealing rings to ensure that there is no air leakage between the chambers and that gas can only enter and exit through the corresponding air tube 24. This structural design can realize segmental pressurization of the esophagus and provides structural support for solving the problem of poor fit of traditional catheters.

[0025] The covering layer 22 is made of medical-grade thin-walled silicone tubing that is compliant with medical standards. It is soft and biocompatible, and will not irritate or damage the esophageal mucosa. Its thin-walled structure can adaptively fit the inner wall of the esophagus after inflation, solving the defects of traditional fixed-diameter catheters that cannot adapt to different esophageal inner diameters and have poor fit. Multiple air tubes 24 are arranged parallel to each other along the axial direction of the catheter body 21. Gas is introduced into different air tubes 24 by the air pump 5, which can cause the corresponding segmental chambers of the covering layer 22 to expand and bulge, realizing segmental pressurization of different segments of the esophagus. This, together with the pressure sensing module 6, completes segmental pressure detection, ensuring that the dynamic data of different esophageal segments can be stably collected.

[0026] This invention provides two gas path implementation structures to adapt to different clinical testing needs. The first is a single valve group structure: only one control valve 3 and one control valve 4 are provided. The control valve 3 adopts a one-inlet, multiple-outlet multi-way solenoid valve, and its multiple outlets are respectively sealed and connected to each air guide tube 24. Its single inlet is sealed and connected to the outlet of the control valve 4. The control valve 4 adopts a multi-way switching solenoid valve, and its two air inlet channels are respectively sealed and connected to the air outlet of the air pump 5 and the pressure measuring end of the pressure sensing module 6. By switching the channels of the control valve 4, the same gas path can be switched between inflation and pressure measurement. This structure is suitable for single-segment esophageal motility testing, and has a simple structure and low cost.

[0027] The second type of air path structure is a multi-valve group structure: multiple control valve 3, control valve 4, and pressure sensing module 6 are provided, with the number consistent with the number of air guide tubes 24. Each air guide tube 24 is individually connected to a control valve 3. Each control valve 3 has two passages, one passage is connected to a pressure sensing module 6, and the other passage is connected to a control valve 4. The air inlet of all control valves 4 is connected to the multi-port connector 8 through pipelines. The total air inlet of the multi-port connector 8 is sealed and connected to the air pump 5, realizing unified air supply from the air pump 5 to multiple air paths. This structure can realize simultaneous detection of multiple esophageal segments, improve detection efficiency, and is suitable for scenarios that require comprehensive assessment of the overall esophageal dynamics.

[0028] The control panel 11 is fixedly installed on the outside of the housing of the control host 1. A control switch 12 is set on it. The control switch 12 is electrically connected to the processor 7 through a signal line. Medical staff input adjustment signals by operating the control switch 12. After receiving the signal, the processor 7 outputs control signals to the electrical stimulation module 27 to realize the adjustment of the discharge power. The adjustment range is limited by the program to the safe current range of the human body (0.1-1mA), which will not cause electric shock injury to the patient and ensure the safety of clinical use.

[0029] The electrical stimulation module 27 adopts a ring-shaped discharge type electrical stimulation electrode assembly. The electrode ring is located on the outer periphery of the insertion end of the catheter assembly 2, and can uniformly release a weak current along the circumference of the esophagus. This design can avoid damage to the esophageal mucosa due to excessive local current. Its core function is to directly induce esophageal smooth muscle contraction through electrical stimulation, and compare it with the spontaneous swallowing detection in the absence of electrical stimulation, thereby distinguishing whether the motility disorder is caused by abnormal smooth muscle contraction or nerve signal transmission disorder. This solves the limitation of existing devices that cannot perform in-depth disease classification diagnosis. At the same time, the electrical stimulation module 27 can continuously output a constant and safe current to play an electrical stimulation therapeutic role on the site of esophageal motility disorder, expanding the clinical application scenarios of the device.

[0030] The interactive panel 13 and the processor 7 are connected by a bidirectional signal transmission connection. The interactive panel 13 uses a touch screen display, which is equipped with a mode selection unit for mode 1, mode 2 and mode 3. Mode 1 is the esophageal motility detection mode for autonomous swallowing without electrical stimulation, corresponding to traditional swallowing stimulation detection, and is used to obtain esophageal motility data under the patient's physiological state. Mode 2 is the esophageal motility detection mode for contraction induced by electrical stimulation, and is used to obtain esophageal motility data under electrical stimulation. The data is compared with mode 1 to achieve disease classification. Mode 3 is the simple electrical stimulation treatment mode, which is used for the auxiliary treatment of esophageal motility disorders or postoperative functional recovery. The three working modes can be quickly switched through the selection unit, which is convenient to operate and adapts to different clinical needs.

[0031] The pressure sensing module 6 is equipped with a dedicated sensor connecting tube. The sensor connecting tube and the pressure inlet of the gas valve are directly sealed at the end face, with no air leakage gap, ensuring the accuracy of pressure signal acquisition and avoiding data distortion caused by air leakage. After the detection starts, the processor 7 first controls and stores the empty reference pressure value of the chamber after inflation and before compression (the reference pressure can be 0.1-0.3MPa, which can be finely adjusted through the interactive panel 13 according to clinical needs). When the esophagus contracts and compresses the chamber, causing a change in gas pressure, the pressure sensing module 6 collects the pressure value in real time and transmits it to the processor 7. The processor 7 calculates the actual pressure change value caused by esophageal muscle contraction by subtracting the empty reference pressure value from the real-time detected pressure value, and outputs the result as a pressure curve and numerical value to the interactive panel 13 for easy reading and analysis by medical staff.

[0032] The visualization component 26 uses medical-grade optical fiber to acquire real-time images of the esophagus and transmit them to the interactive panel 13. Medical staff can intuitively observe the internal anatomical structure of the esophagus through the images, avoiding the deviation of traditional scale positioning. The visualization optical fiber works in conjunction with the position sensing module 25, which uses a Hall sensor to acquire catheter insertion depth signals in real time and transmit them to the processor 7. The processor 7 fuses the image signals and position signals, and simultaneously displays the catheter position and the internal esophageal image on the interactive panel 13, accurately confirming the detection position. This is especially suitable for patients with anatomical abnormalities such as hiatal hernia and gastric ptosis, solving the problem of distorted detection parameters caused by positioning deviations in existing devices. The control host 1 is equipped with an external power interface, which can be connected to an external 220V AC mains power supply to provide stable working power for the processor 7, air pump 5, electrical stimulation module 27, interactive panel 13, pressure sensing module 6, and all valves, ensuring continuous and stable operation of the device.

[0033] This embodiment uses a single control valve 3 and a single control valve 4, which only supports single-stage chamber inflation and single-stage pressure detection. It is suitable for local esophageal motility detection scenarios. The specific implementation steps are as follows: Connect the control host 1 to an external 220V AC power supply and press the start switch on the control panel 11. After the device is powered on, it enters the self-test mode. The processor 7 sequentially tests the inflation pressure of the air pump 5, the channel switching flexibility of control valve 1 3 and control valve 2 4, the signal acquisition accuracy of the pressure sensing module 6, the signal transmission stability of the position sensing module 25, the image acquisition clarity of the visualization component 26, and the discharge stability of the electrical stimulation module 27. After the self-test is completed, the normal state will display "Self-test passed" on the interactive panel 13. If a certain component is abnormal, the specific abnormal component will be displayed to facilitate medical staff to troubleshoot. Then, after routine disinfection of the insertion end of the catheter assembly 2, the medical staff hold the catheter assembly 2 and slowly insert it into the esophagus through the patient's mouth. During the insertion process, the visualization component 26 collects real-time images of the inside of the esophagus and displays them on the interactive panel 13. The medical staff observes the internal anatomical structure of the esophagus through the images and, in conjunction with the insertion depth signal transmitted by the position sensing module 25, adjusts the insertion angle and depth of the catheter until the visualization component 26, position sensing module 25, and electrical stimulation module 27 at the end of the catheter reach the target detection segment, such as the lower or middle esophagus. After positioning is completed, the catheter assembly 2 is fixed to avoid catheter displacement during the detection process, which could lead to positioning deviation. According to clinical testing needs, click the corresponding working mode (mode one, mode two or mode three) on the interactive panel 13. If mode two or mode three is selected, the discharge intensity of the electrical stimulation module 27 can be adjusted by the control switch 12 on the control panel 11. The adjustment range is controlled within 0.1-1mA. After adjustment, the processor 7 receives the mode selection signal and the electrical stimulation intensity signal, controls the control valve two 4 to switch to the air pump 5 conduction channel, and simultaneously controls the control valve one 3 to switch to the target air tube 24 conduction channel. The air pump 5 is started to inflate the corresponding chamber. The inflation pressure is controlled within 0.1-0.3MPa (which can be preset through the interactive panel 13), so that the corresponding segment of the covering layer 22 expands slightly and fits tightly against the inner wall of the esophagus, ensuring that the pressure signal can be stably collected. After inflation is completed, the processor 7 controls the air pump 5 to turn off, and simultaneously controls the control valve two 4 to switch to the pressure sensing module 6 conduction channel, completing the switching between inflation and pressure measurement channels. The pressure sensing module 6 first collects the current chamber's empty reference pressure value, transmits it to the processor 7 and stores it. Mode 1 (No Electrical Stimulation Detection): The electrical stimulation module 27 is not working. Medical staff guide the patient to perform swallowing actions. When the patient swallows voluntarily, the esophageal muscles contract and squeeze the bulging chamber of the covering layer 22, causing a change in the gas pressure in the chamber. The pressure sensing module 6 collects the pressure change signal in real time and transmits it to the processor 7. The processor 7 calculates the actual pressure change value generated by esophageal contraction by the difference between "real-time detected pressure and no-load reference pressure". At the same time, the pressure change curve and value are displayed on the interactive panel 13 in real time. Medical staff record this data to assess the esophageal motility function under the patient's physiological state. Mode 2 (Electrical Stimulation-Assisted Detection): The processor 7 controls the electrical stimulation module 27 to release a weak circular current according to the preset electrical stimulation intensity, inducing esophageal smooth muscle contraction. The esophageal contraction compresses the cavity, generating pressure changes. The pressure sensing module 6 simultaneously collects the pressure signal, and the processor 7 calculates and displays the pressure difference. Medical staff compare this data with the detection data in Mode 1. If the pressure change is significant under electrical stimulation, it indicates that the motor disorder may be neurogenic (neural signal conduction disorder, requiring electrical stimulation to induce contraction); if the pressure change is not significant under electrical stimulation, it indicates that the motor disorder may be myogenic (abnormal smooth muscle contraction, unable to contract effectively even with electrical stimulation), thus completing the disease classification diagnosis. Mode 3 (Electrical Stimulation Therapy): The pressure detection process is turned off, the pressure sensing module 6 stops collecting signals, and the processor 7 controls the electrical stimulation module 27 to continuously release a weak current of preset intensity to perform electrical stimulation therapy on the esophageal motility disorder area. The treatment time can be set through the interactive panel 13, which is usually 10-20 minutes. During the treatment, the esophageal status can be observed in real time through the visualization component 26 to avoid abnormalities. After the test or treatment is completed, the processor 7 controls the control valve 3 and the control valve 4 to switch to the exhaust channel to release the gas in the chamber. The exhaust method can adopt conventional exhaust technology in the field without the need for additional special design. After the covering layer 22 has completely contracted, the medical staff slowly pull out the catheter assembly 2 and disinfect the catheter. Then, press the off switch on the control panel 11 to cut off the power and complete the entire operation process.

[0034] Example 2 Please see Figure 6-7 This embodiment employs multiple control valves 3, multiple control valves 4, multiple pressure sensing modules 6, and multi-port connectors 8 to support multi-segment synchronous inflation and multi-segment synchronous pressure detection. It also allows for individual segment detection and is suitable for scenarios requiring a comprehensive assessment of overall esophageal motility (such as the diagnosis of achalasia or diffuse esophageal spasm). The specific implementation steps are as follows: The process is exactly the same as in Example 1. The catheter is positioned by visual fiber and position sensing module 25 to ensure that the multiple chambers of catheter assembly 2 correspond to different segments of the esophagus (such as the upper, middle and lower esophagus). After the air pump 5 starts, the output gas is distributed to each control valve 4 via the multi-port connector 8. The processor 7 can control all control valves 3 and 4 to open according to the detection requirements, so that multiple chambers are inflated simultaneously, causing multiple segments of the covering layer 22 to expand at the same time and fit the inner wall of different segments of the esophagus. Alternatively, it can control a single set of control valves 3 and 4 to open, so as to inflate a single chamber and perform single-segment detection. The inflation pressure is the same as in Example 1 (0.1-0.3MPa). After inflation is completed, all control valves 4 close the gas supply passage to prevent air leakage.

[0035] Each control valve 3 synchronously switches to the corresponding pressure sensing module 6's conduction channel. Multiple pressure sensing modules 6 simultaneously acquire the no-load reference pressure values ​​of each chamber and transmit them to the processor 7 for storage. Subsequently, based on the selected operating mode, detection is performed. Mode 1: When the patient swallows independently, multiple segments of the esophagus contract simultaneously. The multi-channel pressure sensing module 6 synchronously collects the pressure change signals of each chamber, and the processor 7 synchronously calculates the pressure difference of each channel. The pressure change curves and values ​​of multiple segments are displayed simultaneously on the interactive panel 13, allowing medical staff to intuitively compare the dynamic differences of different segments of the esophagus. Mode 2: The electrical stimulation module 27 releases a weak current to induce contraction of multiple segments of the esophagus. The multi-channel pressure sensing module 6 simultaneously collects pressure data, and the processor 7 calculates and displays the difference. The data is compared with that of Mode 1 to complete the multi-segment disease classification diagnosis. Mode 3: The electrical stimulation module 27 continuously discharges to provide synchronous electrical stimulation treatment to multiple segments of the esophagus. During the treatment, the status of each segment can be observed through the visualization component 26.

[0036] The working logic of its Mode 1, Mode 2 and Mode 3 is completely consistent with that of Example 1. The intensity of electrical stimulation is adjusted by the control switch 12. The visualization and positioning module works throughout the process, which can simultaneously assess or treat multiple segments of the esophagus, thereby improving the efficiency of clinical detection and treatment.

[0037] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from the stated principles.

Claims

1. A visual, electrically stimulated esophageal motility assessment device, characterized in that, It includes a control host (1) and a conduit assembly (2). The control host (1) is equipped with a control panel (11) and an interactive panel (13). Inside it are control valve one (3), control valve two (4), an air pump (5), a pressure sensing module (6), a processor (7), and a multi-port connector (8). The insertion end of the catheter assembly (2) is provided with a position sensing module (25), a visualization component (26) and an electrical stimulation module (27). The processor (7) is connected to the control panel (11), the interaction panel (13), the position sensing module (25), the visualization component (26), the electrical stimulation module (27), the air pump (5), the pressure sensing module (6), the control valve one (3) and the control valve two (4) respectively. The catheter assembly (2) is controllably connected to the air pump (5) and the pressure sensing module (6) respectively through the control valve one (3) and the control valve two (4).

2. The visual, electrically stimulated esophageal motility assessment device according to claim 1, characterized in that, The catheter assembly (2) includes a catheter body (21), a covering layer (22) and a partition (23). The covering layer (22) covers the outside of the catheter body (21). The partition (23) divides the inside of the covering layer (22) into multiple independent chambers. The catheter assembly (2) is also provided with multiple air tubes (24) that are connected to each chamber. The air tubes (24) are sealed at the positions where they pass through the partition (23).

3. The visual, electrically stimulated esophageal motility assessment device according to claim 2, characterized in that, The covering layer (22) is a medical-grade thin-walled silicone tube, and the air guide tube (24) is arranged axially along the main body of the catheter (21). By inflating different chambers, segmental pressurization and segmental pressure detection of the esophagus are achieved.

4. The visual, electrically stimulated esophageal motility assessment device according to claim 3, characterized in that, One control valve (3) and one control valve (4) are provided. The control valve (3) is a multi-port solenoid valve with one inlet and multiple outlets. Its multiple outlets are connected to each of the air guide pipes (24), and its inlet is connected to the control valve (4). The control valve (4) is connected to the air pump (5) and the pressure sensing module (6).

5. The visual, electrically stimulated esophageal motility assessment device according to claim 3, characterized in that, Multiple control valves (3), control valves (4) and pressure sensing modules (6) are provided. Each air guide pipe (24) is connected to a control valve (3). Each control valve (3) is connected to the corresponding pressure sensing module (6) and control valve (4). Each control valve (4) is connected to the air pump (5) after being combined through a multi-port connector (8).

6. The visual, electrically stimulated esophageal motility assessment device according to claim 1, characterized in that, The control panel (11) is provided with a control switch (12), which is electrically connected to the processor (7) and is used to adjust the discharge power of the electrical stimulation module (27) within a safe range.

7. The visual, electrically stimulated esophageal motility assessment device according to claim 1, characterized in that, The electrical stimulation module (27) is a ring-shaped discharge electrical stimulation electrode assembly that can release a weak current to achieve esophageal stimulation or electrical stimulation therapy.

8. The visual, electrically stimulated esophageal motility assessment device according to claim 1, characterized in that, The interactive panel (13) is bidirectionally connected to the processor (7). The interactive panel (13) is provided with mode 1, mode 2 and mode 3 selection units for switching between no-electric stimulation detection, electric stimulation-assisted detection and electric stimulation treatment working modes.

9. The visual, electrically stimulated esophageal motility assessment device according to claim 1, characterized in that, The pressure sensing module (6) is equipped with a sealed sensor connection tube, and the processor (7) calculates the pressure change value generated by esophageal contraction by comparing the difference between the detected pressure and the no-load reference pressure.

10. The visual, electrically stimulated esophageal motility assessment device according to claim 1, characterized in that, The visualization component (26) is a visualization optical fiber. The visualization optical fiber works with the position sensing module (25) to confirm the insertion position of the conduit assembly (2). The control host (1) can be connected to an external power supply to power all electrical modules.

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