Esophageal endoscope for real-time pH monitoring of gastroesophageal reflux disease

Abstract

The utility model discloses an esophageal endoscope for real-time pH monitoring of gastroesophageal reflux disease, and belongs to the technical field of medical instruments. Comprising a capsule body and a transmission cable. The capsule body comprises a capsule shell, a pH electrode, a lighting component and a camera module, the camera module is arranged at the front end of the capsule shell, the lighting component is arranged around the camera module, and the pH electrode is arranged on the side face of the capsule shell; the transmission cable is connected to the tail end of the capsule body, and the head end of the transmission cable is electrically connected with the camera module, the lighting component and the pH electrode. According to the utility model, synchronous observation of a pH curve and a reflux video can be obtained, the relationship between reflux and esophageal movement can be judged, and visual evidence is provided for kinetic research of gastroesophageal reflux.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to an esophageal endoscope used for real-time pH monitoring of gastroesophageal reflux disease. Background Art

[0002] Gastroesophageal reflux disease (GERD) is a common and frequent digestive system disease that has a serious impact on patients' daily life and work. Its pathogenesis is mainly due to the reflux of gastric juice into the esophagus, and acid corrosion and damage to mucosal tissue. Therefore, monitoring esophageal acid reflux is the main method for diagnosing this disease.

[0003] At present, objective diagnostic methods for gastroesophageal reflux include 24-hour impedance-pH monitoring and reflux evidence under direct gastroscopy. 24-hour impedance-pH catheter monitoring can dynamically identify reflux events and conduct analysis and evaluation, but it cannot observe the flow of reflux in real time. In addition, the traditional esophageal pH-impedance catheter monitoring method has a complex production process, and multiple welding and assembly increase the risk of catheter damage and breakage; although gastroscopy can obtain visual reflux evidence such as mucosal damage, bile reflux infiltration, and relaxation of the cardia, it cannot be observed dynamically for a long time, nor can the pH of the reflux be determined synchronously. Utility Model Content

[0004] In response to the problems mentioned in the background technology, the utility model provides an esophageal endoscope for real-time pH monitoring of gastroesophageal reflux disease, with the aim of achieving synchronous observation of pH curve and reflux video, judging the relationship between reflux, esophageal motility and mucosal damage, and providing more valuable evidence for the study of the mechanism of gastroesophageal reflux.

[0005] To this end, the utility model adopts the following technical solutions:

[0006] An esophageal endoscope for real-time pH monitoring of gastroesophageal reflux disease, comprising a capsule body and a transmission cable; the capsule body comprises a capsule shell, a pH electrode, a lighting component and a camera module, the front end of the capsule shell is provided with a camera module, the lighting component is provided around the camera module, and the pH electrode is provided on the side of the capsule shell;

[0007] The transmission cable is connected to the tail end of the capsule body, and the head end of the transmission cable is electrically connected to the camera module, the lighting component and the pH electrode.

[0008] Furthermore, the capsule body has a length of 15-25 mm and an outer diameter of 10-15 mm; it comprises a front cabin and a rear cabin, the tops of the front cabin and the rear cabin are transparent, and the front cabin and the rear cabin are sealed, docked and nested.

[0009] Furthermore, the pH electrode includes a pH reference electrode and a pH working electrode.

[0010] The beneficial effects of the utility model are: it can obtain synchronous observation of pH curve and reflux video, judge the relationship between reflux and esophageal movement, and provide visual evidence for the dynamic study of gastroesophageal reflux; at the same time, it can monitor reflux events under visual conditions to ensure the accuracy of positioning and the integrity of reflux data; it combines 24-hour pH monitoring and electronic endoscopy into one examination, which reduces the pain of patients and improves diagnostic efficiency. Therefore, compared with the existing technology, the utility model has obvious advantages in the safety of device operation, diagnostic efficiency and patient tolerance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the esophageal endoscope of the utility model;

[0012] Figure 2 It is a cross-sectional view of the cross section of the capsule body of the utility model;

[0013] Figure 3 This is a schematic diagram of the capsule body of the utility model in use;

[0014] In the figure: 10 - capsule body; 11 - lighting PCB board; 12 - camera module; 13 - lighting component; 14 - pH electrode; 20 - transmission cable; 30 - data output terminal. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0016] like Figure 1 As shown, an esophageal endoscope for real-time pH monitoring of gastroesophageal reflux disease includes a capsule body 10 , a transmission cable 20 and a data output terminal 30 .

[0017] The capsule body 10 is a cylindrical accommodating cavity with a length of 15-25 mm and an outer diameter of 10-15 mm, and is made of acid- and alkali-resistant and non-toxic materials such as medical latex. It includes a front cabin and a rear cabin, which are dome-shaped, transparent, sealed, and nested with each other.

[0018] The front end of the capsule body 10 is fixed with a camera module 12 and an illumination PCB board 11, and the side wall of the capsule body 10 is embedded with a pH electrode 14 protruding from the surface, and the pH electrode 14 includes a pH reference electrode and a pH working electrode. The pH reference electrode is made of Ag / AgCl, and the pH working electrode is made of a hydrogen ion sensitive electrode, such as an antimony electrode.

[0019] There are two implementation methods for setting the position of the pH working electrode:

[0020] Embodiment 1: The pH working electrode is embedded in the side of the capsule shell, and the pH working electrode is connected to an insulated wire inside the capsule body 10; the two wires connected to the pH working electrode and the pH reference electrode are combined into the transmission cable 20 inside the capsule shell and pass through the capsule body 10.

[0021] Embodiment 2: The pH working electrode is embedded in the side of the insulating outer skin of the transmission cable 20 near the capsule end. The pH working electrode is connected to an insulated wire in the transmission cable 20 , and the insulated wire runs through the entire transmission cable 20 .

[0022] The transmission cable 20 contains a pH signal transmission line, an image signal transmission line and a power supply line. The other end of the transmission cable 20 is a data output end 30, which outputs the internal image and pH data and is connected to a power supply.

[0023] like Figure 3 As shown, the utility model is a use process of an esophageal endoscope for real-time pH monitoring of gastroesophageal reflux disease.

[0024] Swallow the pH capsule endoscope naturally and fix it above the esophagogastric junction of the patient under direct vision. Start the image and pH recording process to perform dynamic reflux observation. If the position of the pH capsule endoscope changes during the monitoring process, it can be adjusted and repositioned with the help of cables. Connect the transmission cable 20 to the signal collector and the host computer, and record the data collected by the pH electrode 14 and the camera module 12 through the host computer. After completing the dynamic reflux monitoring, withdraw the pH capsule endoscope through the mouth under the traction of the cable.

Claims

1. An esophageal endoscope for real-time pH monitoring of gastroesophageal reflux disease, characterized in that: The invention comprises a capsule body (10) and a transmission cable (20); the capsule body (10) comprises a capsule shell, a pH electrode (14), a lighting component (13) and a camera module (12); the camera module (12) is arranged at the front end of the capsule shell, the lighting component (13) is arranged around the camera module (12), and the pH electrode (14) is arranged on the side of the capsule shell; The transmission cable (20) is connected to the rear end of the capsule body (10), and the head end of the transmission cable (20) is electrically connected to the camera module (12), the lighting component (13), and the pH electrode (14).

2. The esophageal endoscope for real-time pH monitoring of gastroesophageal reflux disease according to claim 1, characterized in that: The capsule body (10) has a length of 15-25 mm and an outer diameter of 10-15 mm; it comprises a front cabin and a rear cabin, the top ends of the front cabin and the rear cabin are transparent, and the front cabin and the rear cabin are sealed, docked and nested.

3. The esophageal endoscope for real-time pH monitoring of gastroesophageal reflux disease according to claim 1, characterized in that: The pH electrode (14) comprises a pH reference electrode and a pH working electrode.

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