A digestive tract detection device integrating temperature and pH value detection

Abstract

The application relates to the technical field of medical auxiliary devices, and discloses a temperature and pH integrated detection gastrointestinal tract detection device which comprises a middle capsule shell, one end of the middle capsule shell is provided with a tail capsule shell, and the other end of the middle capsule shell away from the tail capsule shell is provided with a head capsule shell; a miniature temperature sensing module and a miniature pH sensing module are arranged in the inner cavity of the head capsule shell. Through the arrangement of the nano-porous polymer film and the special micropore opened in the corresponding sensing module, most of the mucus, chyme and macromolecular substances are blocked, the sensor pollution and protein adsorption are reduced, the precise contact between the digestive juice and the sensing module can be ensured, the real-time detection is not affected, meanwhile, the blocking film is directly attached to the surface of the sensing module, the digestive juice retention and impurity breeding caused by the gap are avoided, the detection error is further reduced, and the problems of the reduced detection sensitivity and service life caused by the pollution on the surface of the sensor are solved.

Description

Technical Field

[0001] This invention relates to the field of medical auxiliary device technology, specifically to a digestive tract detection device that integrates temperature and pH detection. Background Technology

[0002] Early diagnosis and monitoring of digestive tract diseases rely on accurate, real-time monitoring of physiological parameters such as acid-base balance and temperature within the digestive tract. Abnormal changes in these parameters are often important indicators of diseases such as gastritis, gastric ulcers, and intestinal flora imbalance. Traditional methods for detecting digestive tract physiological parameters are mainly divided into invasive and non-invasive methods. Invasive methods, such as gastroscopy and colonoscopy, can achieve local parameter acquisition and visualization, but they have drawbacks such as painful procedures, risks of mucosal trauma, and inability to monitor the entire digestive tract. Patient acceptance is low, especially for children, the elderly, and those with weakened immune systems. Non-invasive methods, represented by capsule endoscopy, have become a research hotspot in the field of digestive tract testing in recent years due to their advantages of being swallowable, non-invasive, and covering the entire digestive tract.

[0003] Existing capsule devices that integrate temperature and pH detection functions are prone to contamination and protein adsorption on the sensor surface due to the presence of a large amount of mucus, chyme, and macromolecules in the digestive tract, which reduces detection sensitivity and lifespan. Most devices also lack effective digestive tract location identification functions, and can only output discrete temperature and pH data, making it difficult for doctors to accurately bind abnormal parameters to corresponding digestive tract segments, thus posing a challenge to locating lesions. Summary of the Invention

[0004] This invention provides a digestive tract detection device that integrates temperature and pH detection, solving the problems mentioned in the background art.

[0005] This invention provides the following technical solution: a digestive tract detection device integrating temperature and pH detection, comprising a central capsule shell, a tail capsule shell installed at one end of the central capsule shell, and a head capsule shell installed at the end of the central capsule shell away from the tail capsule shell. A micro-temperature sensing module and a micro-pH sensing module are installed inside the head capsule shell, and a double-isolation structure module is installed between the micro-temperature sensing module and the micro-pH sensing module. A circular groove is formed on the outer wall of the head capsule shell, and a barrier membrane is installed on the inner wall of the circular groove. A temperature module micropore and a pH module micropore are formed on the outer wall of the barrier membrane, corresponding to the micro-temperature sensing module and the micro-pH sensing module, respectively. A partition is installed on the inner wall of the central capsule shell, and a micro-circuit board is installed on the inner wall of the partition. An MCU control unit is installed on the outer edge of the micro-circuit board, and a power supply module is installed on the back of the micro-circuit board.

[0006] As a preferred embodiment of the present invention, the dual-isolation structure module includes a heat insulation layer, an electromagnetic shielding layer is installed on the outer edge of the heat insulation layer, an electrode channel layer is installed on the outer edge of the electromagnetic shielding layer, the heat insulation layer is located on one side of the micro temperature sensing module, the electromagnetic shielding layer is located on one side of the micro pH sensing module, the electrode channel layer is located between the heat insulation layer and the electromagnetic shielding layer, and the heat insulation layer is an aerogel material layer.

[0007] As a preferred embodiment of the present invention, the miniature temperature sensing module is a thermistor temperature sensor, and the miniature pH sensing module is a miniature glass pH electrode.

[0008] As a preferred embodiment of the present invention, a signal processing module is mounted on the outer edge of the micro circuit board, the micro temperature sensing module and the micro pH sensing module are electrically connected to the signal processing module, and the signal processing module is electrically connected to the MCU control unit.

[0009] As a preferred embodiment of the present invention, the MCU control unit incorporates a temperature compensation algorithm, data acquisition, and digestive tract location identification.

[0010] As a preferred embodiment of the present invention, the temperature compensation algorithm satisfies the following relationship: pH = pH measured +k(T-T0), where: T is the real-time detected temperature, T0 is the calibration reference temperature, and k is the temperature compensation coefficient.

[0011] As a preferred embodiment of the present invention, the MCU control unit identifies the location of the digestive tract by analyzing temperature change characteristics and pH gradient change characteristics.

[0012] As a preferred embodiment of the present invention, the surfaces of the middle capsule shell, the tail capsule shell and the head capsule shell are coated with a hydrophobic coating, and the micropores of the temperature module and the micropores of the pH module penetrate the hydrophobic coating.

[0013] As a preferred embodiment of the present invention, the barrier membrane is a nanoporous polymer membrane, and the barrier membrane is attached to the micro temperature sensing module and the micro pH sensing module.

[0014] As a preferred embodiment of the present invention, a wireless communication module is mounted on the outer edge of the micro circuit board, the MCU control unit is electrically connected to the wireless communication module, and the wireless communication module is a low-power radio frequency communication module that adopts a periodic transmission and sleep-wake mechanism.

[0015] The present invention has the following beneficial effects: 1. This digestive tract detection device, which integrates temperature and pH detection, uses a nanoporous polymer membrane with dedicated micropores on the corresponding sensing module to block most mucus, chyme, and macromolecules, reducing sensor contamination and protein adsorption. This ensures precise contact between the digestive fluid and the sensing module without affecting real-time detection. Furthermore, the barrier membrane adheres directly to the surface of the sensing module, preventing digestive fluid retention and impurity growth caused by gaps, further reducing detection errors. This solves the problem of reduced detection sensitivity and lifespan due to contamination on the sensor surface.

[0016] 2. This digestive tract detection device, which integrates temperature and pH detection, analyzes the combination patterns of temperature change characteristics and pH gradient change characteristics through an MCU control unit. Combined with the fixed physiological parameter ranges of each digestive tract segment, it can accurately identify the digestive tract segment where the capsule is located, thus binding the detection data with the corresponding segment. This solves the problem that traditional devices can only output discrete data and cannot locate the source, allowing doctors to intuitively judge the digestive tract location corresponding to abnormal parameters, quickly locate the lesion area, improve diagnostic efficiency and targeting, and provide a more comprehensive basis for early disease screening and disease monitoring. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the uncoated capsule structure of the present invention; Figure 2 This is a schematic diagram of the coated structure of the capsule of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the capsule of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the diagram; Figure 5 This is a schematic diagram of the capsule unfolding structure of the present invention; Figure 6 This is a schematic diagram of the temperature and pH detection system of the present invention; Figure 7 This is a schematic diagram of the MCU control unit structure of the present invention.

[0018] In the diagram: 1. Middle capsule shell; 2. Tail capsule shell; 3. Head capsule shell; 4. Circular groove; 5. Barrier membrane; 56. Temperature module micropores; 57. pH module micropores; 6. Miniature temperature sensing module; 7. Miniature pH sensing module; 8. Double isolation structure module; 81. Heat insulation layer; 82. Electromagnetic shielding layer; 83. Electrode channel layer; 9. Hydrophobic coating; 10. Partition plate; 11. Micro circuit board; 12. Power supply module; 13. Signal processing module; 14. MCU control unit; 15. Wireless communication module. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-7 A digestive tract detection device integrating temperature and pH detection includes a middle capsule shell 1, a tail capsule shell 2 installed at one end of the middle capsule shell 1, and a head capsule shell 3 installed at the end of the middle capsule shell 1 away from the tail capsule shell 2. A micro temperature sensing module 6 and a micro pH sensing module 7 are installed in the inner cavity of the head capsule shell 3. A double isolation structure module 8 is installed between the micro temperature sensing module 6 and the micro pH sensing module 7. A circular groove 4 is formed on the outer wall of the head capsule shell 3. A barrier membrane 5 is installed on the inner wall of the circular groove 4. A temperature module micropore 56 and a pH module micropore 57 are formed on the outer wall of the barrier membrane 5. The temperature module micropore 56 and the pH module micropore 57 correspond to the micro temperature sensing module 6 and the micro pH sensing module 7, respectively. A partition 10 is installed on the inner wall of the middle capsule shell 1. A micro circuit board 11 is installed on the inner wall of the partition 10. An MCU control unit 14 is installed on the outer edge of the micro circuit board 11. A power supply module 12 is installed on the back of the micro circuit board 11.

[0021] In the above structure, by placing the micro temperature sensing module 6 and the micro pH sensing module 7 in the head capsule shell 3, the middle capsule shell 1, and the tail capsule shell 2, the middle capsule shell 1, the tail capsule shell 2, and the head capsule shell 3 can be swallowed, allowing them to move within the human digestive tract. The middle capsule shell 1, the tail capsule shell 2, and the head capsule shell 3 will come into contact with the liquid in the digestive tract. The micro temperature sensing module 6 detects the temperature of the liquid in the digestive tract, and the micro pH sensing module 7 detects the pH value of the liquid. The micropores 56 and 57 of the temperature module and pH module can block most mucus, chyme, and large molecules, greatly reducing sensor contamination and protein adsorption. The power supply module 12 can supply power to the micro circuit board 11. When the micro circuit board 11 is powered, the components connected to it can also be powered.

[0022] In a preferred embodiment: the dual-isolation structure module 8 includes a heat insulation layer 81, an electromagnetic shielding layer 82 is installed on the outer edge of the heat insulation layer 81, an electrode channel layer 83 is installed on the outer edge of the electromagnetic shielding layer 82, the heat insulation layer 81 is located on one side of the micro temperature sensing module 6, the electromagnetic shielding layer 82 is located on one side of the micro pH sensing module 7, and the electrode channel layer 83 is located between the heat insulation layer 81 and the electromagnetic shielding layer 82. The heat insulation layer 81 is an aerogel material layer.

[0023] In the above structure, the core function of the heat insulation layer 81 is to block temperature conduction interference. Utilizing the low thermal conductivity of aerogel material, it adheres to the side of the micro temperature sensing module 6, preventing heat from the micro temperature sensing module 6 from diffusing to the micro pH sensing module 7. This prevents temperature fluctuations from affecting the electrochemical reaction stability of the micro pH sensing module 7, ensuring the accuracy of pH detection data. The core function of the electromagnetic shielding layer 82 is to shield electrochemical signal interference. Adhering to the side of the micro pH sensing module 7, it blocks the outward radiation of electromagnetic signals generated during pH detection, preventing interference with the temperature signal acquisition accuracy of the micro temperature sensing module 6, while also isolating external electromagnetic interference from the pH sensing module. The core function of the electrode channel layer 83 is to provide a dedicated electrode wiring channel and enhance isolation. Sandwiched between the heat insulation layer 81 and the electromagnetic shielding layer 82, it has an internal through-channel for the electrode wires of the pH sensing module to pass through, physically isolating the electrode wires from the two sensing modules, further blocking signal cross-interference, and fixing the position of the electrode wires to avoid additional interference caused by messy wiring.

[0024] In a preferred embodiment: the miniature temperature sensing module 6 is a thermistor temperature sensor, and the miniature pH sensing module 7 is a miniature glass pH electrode.

[0025] In the above structure, the miniature temperature sensing module 6 accurately collects real-time temperature signals within the digestive tract, providing basic data for detection and auxiliary diagnosis. The thermistor sensor has the advantages of small size, fast response speed, and high accuracy, and can be adapted to the narrow installation space of the capsule shell, meeting the miniaturization requirements of digestive tract detection. The miniature pH sensing module 7 accurately captures pH changes within the digestive tract, reflecting the acid-base environment and aiding in the diagnosis of digestive tract diseases. The miniature glass pH electrode has the characteristics of wide measurement range, strong stability, and good anti-interference ability, adapting to the complex digestive fluid environment of the digestive tract. Its miniaturized design can be adapted to the layout of the capsule shell without affecting the overall swallowability of the device. The combined use of the miniature temperature sensing module 6 and the miniature pH sensing module 7 not only achieves simultaneous detection of temperature and pH values, but also provides data support for subsequent signal correction and position identification. The dual isolation structure maximizes detection accuracy and meets the clinical testing needs of the digestive tract.

[0026] In a preferred embodiment: a signal processing module 13 is mounted on the outer edge of the micro circuit board 11, the micro temperature sensing module 6 and the micro pH sensing module 7 are electrically connected to the signal processing module 13 respectively, and the signal processing module 13 is electrically connected to the MCU control unit 14.

[0027] In the above structure, the signals collected by the miniature temperature sensing module 6 and the miniature pH sensing module 7 are both weak raw signals. Temperature is a resistance change signal and pH is an electrochemical signal, which are easily affected by the digestive tract environment. The signal processing module 13 can enhance the effective signal and eliminate interference noise through amplification, filtering and noise reduction, so as to avoid data distortion caused by direct transmission of weak signals. The separate and independent connection of the miniature temperature sensing module 6 and the miniature pH sensing module 7 can realize the separate preprocessing of dual-parameter signals and prevent cross-interference between temperature and pH signals in the preprocessing stage.

[0028] In a preferred embodiment, the MCU control unit 14 incorporates a temperature compensation algorithm, data acquisition, and digestive tract location identification.

[0029] In the above structure, the temperature compensation algorithm in the MCU control unit 14 eliminates the interference of temperature fluctuations on pH detection data, improving the accuracy of pH detection. The detection results of the miniature glass pH electrode are easily affected by temperature. Temperatures vary in different sections of the digestive tract, and temperature changes alter the electrode's ion exchange rate, leading to distortion of the raw pH data. By incorporating this algorithm, the temperature data collected in real-time by the miniature temperature sensing module 6 is dynamically corrected to calibrate the pH value under different temperature environments to the standard value at the calibration reference temperature T0, ensuring that the pH detection data is not affected by temperature and meets the accuracy requirements for clinical diagnosis. The data acquisition in the MCU control unit 14... The integrated system enables the synchronous, efficient acquisition and preliminary normalization of dual-parameter signals. This function can accurately and synchronously capture the temperature electrical signal preprocessed by the signal processing module 13 and the pH electrical signal before correction. Data acquisition is completed through a preset sampling frequency, and the acquired raw data is initially normalized to avoid data loss or disorder. The digestive tract location recognition in the MCU control unit 14 enables the precise association between the detection data and the digestive tract segment, improving the specificity of clinical diagnosis. The temperature reference value and pH gradient of different segments of the digestive tract have fixed physiological characteristics. This function accurately locates the digestive tract segment where the capsule is currently located by analyzing the combination of temperature change characteristics and pH gradient change characteristics. After binding the synchronously detected temperature and pH data with the corresponding segment, it is transmitted to the external terminal. Doctors can intuitively obtain the physiological parameters of different segments, quickly locate the lesion location, solve the pain point of traditional integrated detection devices that can only output data but cannot locate the location, and improve diagnostic efficiency.

[0030] In a preferred embodiment: the temperature compensation algorithm satisfies the following relationship: pH = pH measured +k(T-T0), where: T is the real-time detected temperature, T0 is the calibration reference temperature, and k is the temperature compensation coefficient.

[0031] In the above structure, the detection principle of the miniature glass pH electrode is based on ion exchange reaction. This reaction rate is significantly affected by temperature. Different sections of the digestive tract naturally exhibit temperature differences; the stomach temperature is approximately 37.5℃, while the intestinal temperature is slightly higher. Temperature fluctuations directly distort the original pH detection value, failing to reflect the true acid-base environment. This formula quantifies the effect of temperature on pH, achieving dynamic correction. It uniformly calibrates the original pH data at different temperatures to the standard value at the calibrated reference temperature, offsetting temperature interference at the algorithmic level and ensuring the accuracy and comparability of pH detection data, meeting the core requirement of clinical diagnostic data precision. T is the real-time temperature within the digestive tract synchronously collected by the miniature temperature sensing module 6, providing data support for interference quantification. T0 is the initial standard temperature reference, serving as the benchmark for pH calibration. k is a specific coefficient calibrated for the characteristics of the miniature glass pH electrode, used to quantify the impact of unit temperature change on pH, ensuring calibration accuracy.

[0032] In a preferred embodiment, the MCU control unit 14 identifies the location of the digestive tract by analyzing temperature change characteristics and pH gradient change characteristics.

[0033] In the aforementioned structures, the esophagus, stomach, small intestine, and large intestine exhibit fixed physiological differences: the esophagus has a near-neutral pH of 6.5-7.5 and a temperature close to body temperature of 36.5-37.2℃; the stomach has a very low pH of 1.5-3.5 due to the presence of gastric acid and a slightly higher temperature of 37.3-37.8℃; the small intestine has a gradually increasing pH of 4.8-7.5 and a stable temperature of 37.5-37.9℃; and the large intestine maintains a slightly alkaline pH of 7.0-8.0 and a slightly decreasing temperature. This function captures these differences to accurately locate the segment of the capsule, binding the simultaneously detected temperature and pH data to the corresponding segment. This addresses the limitation of traditional integrated detection devices that can only output data but cannot pinpoint the location, allowing doctors to intuitively determine the location of abnormal parameters within the digestive tract and quickly pinpoint the lesion area.

[0034] In a preferred embodiment: the surfaces of the middle capsule shell 1, the tail capsule shell 2 and the head capsule shell 3 are coated with a hydrophobic coating 9, and the temperature module micropores 56 and the pH module micropores 57 penetrate the hydrophobic coating 9.

[0035] In the above structure, the hydrophobic coating 9 is provided. In the digestive tract, there are a large amount of digestive juices, mucus and food residues. The hydrophobic coating can form a dense hydrophobic film on the surface of the capsule shell, preventing digestive juices and mucus from adhering and penetrating. On the one hand, it avoids the shell being corroded by strong acid and alkali digestive juices, thus extending the service life of the device. The smooth surface of the coating can significantly reduce the frictional resistance between the capsule and the inner wall of the esophagus and gastrointestinal tract. This reduces the stimulation of the pharyngeal and esophageal mucosa during swallowing, improving user comfort and safety.

[0036] In a preferred embodiment, the barrier membrane 5 is a nanoporous polymer membrane, and the barrier membrane 5 is attached to the micro temperature sensing module 6 and the micro pH sensing module 7.

[0037] In the above structure, by attaching the barrier membrane 5 to the micro temperature sensing module 6 and the micro pH sensing module 7, gaps between the barrier membrane 5 and the micro temperature sensing module 6 and the micro pH sensing module 7 are avoided, which would cause digestive fluid to stagnate. This ensures the real-time nature of signal acquisition, while also preventing impurities from growing in the gaps and reducing detection errors.

[0038] In a preferred embodiment: a wireless communication module 15 is mounted on the outer edge of the micro circuit board 11, and the MCU control unit 14 is electrically connected to the wireless communication module 15. The wireless communication module 15 is a low-power radio frequency communication module that adopts a periodic transmission and sleep-wake mechanism.

[0039] In the above structure, the pH value, real-time temperature, and digestive tract location information processed by the MCU control unit 14 are transmitted to the external receiving terminal. Doctors can observe the location of the detection device and the corresponding internal digestive tract information through the external receiving terminal. The low-power radio frequency communication module has the characteristics of low power consumption, small size, and strong anti-interference ability. It adapts to the capacity limitation of the power supply module 12 and can resist the interference of complex electromagnetic environment in the digestive tract, avoid data transmission loss or distortion, and ensure continuous data throughout the detection process. The periodic transmission and sleep wake-up mechanism is the key to achieving long battery life. The device does not need to continuously transmit data. It wakes up the module every 10 seconds through a preset periodic partition to send data once, and stays in sleep state for the rest of the time. This can reduce the power consumption to less than one-tenth of the continuous working mode, and can monitor continuously for a long time, fully covering the entire transmission cycle of the capsule from swallowing to excretion in the digestive tract.

[0040] Working principle: During use, after the user swallows the device, the digestive fluid comes into contact with the micro-temperature sensor module 6 and the micro-pH sensor module 7 through the temperature module micropore 56 and pH module micropore 57 on the barrier membrane 5, respectively. The micro-temperature sensor module 6 and the micro-pH sensor module 7 collect temperature and pH data of the digestive fluid. During data acquisition, the dual isolation structure module 8 blocks temperature conduction and electromagnetic signal interference. The micro-temperature sensor module 6 converts temperature changes into resistance signals, and the micro-pH sensor module 7 converts pH values ​​into electrochemical signals through glass membrane ion exchange. The signal processing module 13 amplifies, filters, and reduces the resistance and electrochemical signals generated by the micro-temperature sensor module 6 and the micro-pH sensor module 7. Noise preprocessing removes interference from the digestive tract environment, outputting a standardized signal. This signal is then transmitted to the MCU control unit 14 for processing. The data acquisition function synchronously captures standardized temperature and pH signals at a preset frequency, completing data format regularization and initial screening of outliers. The temperature compensation algorithm corrects the original pH value by calling real-time temperature data through a relational formula, eliminating the influence of temperature fluctuations on pH detection and outputting an accurate pH value. The digestive tract location identification analyzes temperature change characteristics and pH gradient change characteristics, combining them to determine the digestive tract segment where the capsule is located, achieving accurate binding of detection data and segment. The data in the MCU control unit 14 is then transmitted to the external receiving terminal via the wireless communication module 15 through the corrected pH value, real-time temperature, and location information, allowing medical personnel to obtain the temperature and pH value of each segment of the digestive tract.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended technical solutions and their equivalents.

Claims

1. A digestive tract detection device integrating temperature and pH detection, comprising a central capsule shell (1), characterized in that: One end of the middle capsule shell (1) is fitted with a tail capsule shell (2), and the end of the middle capsule shell (1) away from the tail capsule shell (2) is fitted with a head capsule shell (3). A miniature temperature sensing module (6) and a miniature pH sensing module (7) are installed inside the head capsule shell (3). A double-isolation structure module (8) is installed between the miniature temperature sensing module (6) and the miniature pH sensing module (7). A circular groove (4) is formed on the outer wall of the head capsule shell (3), and a barrier membrane (5) is installed on the inner wall of the circular groove (4). The outer wall of the membrane (5) is provided with temperature module micropores (56) and pH module micropores (57). The temperature module micropores (56) and pH module micropores (57) correspond to the micro temperature sensing module (6) and the micro pH sensing module (7) respectively. The inner wall of the middle capsule shell (1) is equipped with a partition (10). The inner wall of the partition (10) is equipped with a micro circuit board (11). The outer edge of the micro circuit board (11) is equipped with an MCU control unit (14). The back of the micro circuit board (11) is equipped with a power supply module (12).

2. The digestive tract detection device integrating temperature and pH detection according to claim 1, characterized in that: The dual-isolation structure module (8) includes a heat insulation layer (81), an electromagnetic shielding layer (82) is installed on the outer edge of the heat insulation layer (81), an electrode channel layer (83) is installed on the outer edge of the electromagnetic shielding layer (82), the heat insulation layer (81) is located on one side of the micro temperature sensing module (6), the electromagnetic shielding layer (82) is located on one side of the micro pH sensing module (7), and the electrode channel layer (83) is located between the heat insulation layer (81) and the electromagnetic shielding layer (82). The heat insulation layer (81) is an aerogel material layer.

3. The digestive tract detection device integrating temperature and pH detection according to claim 1, characterized in that: The miniature temperature sensing module (6) is a thermistor temperature sensor, and the miniature pH sensing module (7) is a miniature glass pH electrode.

4. The digestive tract detection device integrating temperature and pH detection according to claim 1, characterized in that: The signal processing module (13) is mounted on the outer edge of the micro circuit board (11). The micro temperature sensing module (6) and the micro pH sensing module (7) are electrically connected to the signal processing module (13) respectively. The signal processing module (13) is electrically connected to the MCU control unit (14).

5. The digestive tract detection device integrating temperature and pH detection according to claim 1, characterized in that: The MCU control unit (14) has a built-in temperature compensation algorithm, data acquisition and digestive tract location identification.

6. The digestive tract detection device integrating temperature and pH detection according to claim 5, characterized in that: The temperature compensation algorithm satisfies the following relationship: pH = pH measured +k(T-T0), where: T is the real-time detected temperature, T0 is the calibration reference temperature, and k is the temperature compensation coefficient.

7. A digestive tract detection device integrating temperature and pH detection according to claim 5, characterized in that: The MCU control unit (14) identifies the location of the digestive tract by analyzing temperature change characteristics and pH gradient change characteristics.

8. The digestive tract detection device integrating temperature and pH detection according to claim 1, characterized in that: The surfaces of the middle capsule shell (1), the tail capsule shell (2) and the head capsule shell (3) are coated with a hydrophobic coating (9), and the temperature module micropores (56) and pH module micropores (57) penetrate the hydrophobic coating (9).

9. A digestive tract detection device integrating temperature and pH detection according to claim 1, characterized in that: The barrier membrane (5) is a nanoporous polymer membrane, and the barrier membrane (5) is attached to the micro temperature sensing module (6) and the micro pH sensing module (7).

10. A digestive tract detection device integrating temperature and pH detection according to claim 1, characterized in that: A wireless communication module (15) is mounted on the outer edge of the micro circuit board (11). The MCU control unit (14) is electrically connected to the wireless communication module (15). The wireless communication module (15) is a low-power radio frequency communication module that adopts a periodic transmission and sleep-wake mechanism.

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