Stomach tube with temperature and abdominal pressure detection function

Abstract

The invention discloses a stomach tube with temperature and abdominal pressure detection, which comprises a stomach tube main body, and the stomach tube main body is composed of a main pipeline, a micro camera and a light emitting device 1 ed; one end of the main pipeline is fixedly connected with a control box, the output end of the control box is electrically connected to an external display to facilitate external display of data, and the color development detection pipe is composed of a light sensation detection module fixed to the inner side of the control box, a flexible optical fiber and a pH sensitive hydrogel capsule fixed to one end of the flexible optical fiber; one end of the flexible optical fiber is connected with a light guide cassette, and the pH sensitive hydrogel capsule is fixed on the surface of the light guide cassette. According to the multifunctional stomach tube, a multifunctional detection system integrating pH value detection, temperature detection and intra-abdominal pressure measurement is integrated, basic functions of a traditional stomach tube are combined, meanwhile, multiple monitoring functions are integrated into the same equipment, the complexity of intubation operation is reduced, the workload of medical staff is reduced, and meanwhile the infection risk caused by repeated intubation of a patient is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of gastric tubes, in particular to a gastric tube with temperature and abdominal pressure detection capabilities. Background Art

[0002] In clinical medicine, gastric tubes are usually used to empty the patient's gastrointestinal contents, infuse drugs or provide nutritional support. The traditional gastric tube structure usually consists of a flexible tube that is inserted into the patient's nasal cavity and enters the stomach through the esophagus to achieve drug injection or discharge of gastric substances. However, the traditional gastric tube only has basic drainage and delivery functions, and does not have the ability to monitor the patient's gastric environment in real time.

[0003] In actual operation, medical staff need to rely on visual observation, gas reflux or aspiration after injecting a small amount of saline to determine whether the gastric tube is correctly inserted. This method is not only less accurate, but also relies on the experience of the operator, so it is easy to misjudge. In addition, traditional gastric tube devices usually cannot provide information on the temperature and intra-abdominal pressure of the patient's stomach, which poses a greater risk to intensive care patients and patients with long-term intubation.

[0004] In view of the above-mentioned defects of traditional gastric tube devices, the existing technical solutions have obvious deficiencies in the following aspects:

[0005] Lack of multi-functional monitoring capabilities: Traditional gastric tube devices are only used for single drainage or perfusion functions and cannot monitor pH, temperature and intra-abdominal pressure in real time. Therefore, when the patient's gastric environment changes (such as changes in pH, abnormal temperature or increased abdominal pressure), it is difficult for medical staff to detect and deal with it in time, which may lead to complications.

[0006] Low accuracy of tube placement: The placement of traditional gastric tubes usually depends on the operator's feel and experience, which may cause the gastric tube to enter the airway or esophagus instead of the stomach, increasing the safety risks of patients. Especially for critically ill patients or comatose patients who cannot cooperate, the risk of tube placement is greater.

[0007] No real-time monitoring and alarm: Because traditional gastric tubes do not have integrated sensor modules, they cannot provide real-time monitoring of physiological parameters. Even if medical staff can perform intermittent checks through external devices, they cannot automatically trigger alarm prompts in abnormal situations (such as excessive intra-abdominal pressure or abnormal stomach temperature), which may cause the patient's condition to deteriorate and fail to intervene in time.

[0008] Complex operation and increased risk of infection: Traditional gastric tube insertion is complex and usually requires repeated intubation to ensure that the gastric tube is placed in the correct position. This repeated operation will increase the patient's pain and may lead to cross-infection, especially in patients who require long-term intubation, where this risk is more significant.

[0009] In summary, the defects of existing traditional technical solutions significantly affect the safety and efficiency of medical operations. Therefore, the market urgently needs an intelligent gastric tube device with integrated multifunctional detection to solve the above problems and improve the safety and accuracy of clinical applications.

[0010] Based on the existing technology, the present invention innovatively solves many technical bottlenecks existing in traditional gastric tubes by integrating pH detection, temperature detection and intra-abdominal pressure monitoring functions, realizes multifunctional real-time monitoring and automatic alarm, and greatly improves the safety and efficiency of gastric tube insertion and monitoring. Summary of the invention

[0011] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0012] The present invention provides a device integrating multiple detection functions, which is used for performing pH value detection, temperature detection and intra-abdominal pressure monitoring during the operation of gastric tube insertion, so as to ensure the accurate placement of the gastric tube and the physiological safety of the patient.

[0013] 1. Main structure: The present invention includes a gastric tube body, wherein the gastric tube body is composed of a main pipe, a miniature camera and a light-emitting LED; one end of the main pipe is fixedly connected to a control box, and the output end of the control box is electrically connected to an external display for external display of data.

[0014] Working effect: By integrating a micro camera and light-emitting LED, the intubation process can be monitored in real time to ensure the accuracy of gastric tube placement. At the same time, visual feedback is provided through an external display to reduce human error.

[0015] 2. Color detection system: The present invention also includes a color detection tube, which is composed of a light detection module fixed to the inside of the control box, a flexible optical fiber, and a pH-sensitive hydrogel capsule fixed to one end of the flexible optical fiber; one end of the flexible optical fiber is connected to a light-guiding dark box, and the pH-sensitive hydrogel capsule is fixed to the surface of the light-guiding dark box. When the pH-sensitive hydrogel capsule contacts gastric acid, it will expand in volume or change in color, thereby changing the light transmittance or reflectivity in the flexible optical fiber, causing the light detection module to output a judgment signal.

[0016] Working effect: Through the color and volume changes of the pH-sensitive hydrogel capsule, combined with the light sensing function of the light sensing detection module, it can quickly and accurately determine whether the gastric tube is correctly placed in the stomach, reducing the risk of tube placement failure.

[0017] 3. Dual detection function: The pH-sensitive hydrogel capsule is made of polyacrylate materials and has the characteristics of color development and volume expansion when the pH value is lower than 3. When the temperature changes, the light transmittance in the flexible optical fiber changes through volume changes, thereby realizing temperature detection.

[0018] Working effect: Through the design of the lens and color mirror parts, when the temperature rises, the volume expands to form a convex lens effect, which increases the intensity of the light signal in the flexible optical fiber. The system can simultaneously detect the temperature and pH in the stomach and provide additional diagnostic data.

[0019] 4. Intra-abdominal pressure monitoring: The present invention embeds an abdominal pressure sensor at the bottom of the light-guiding dark box to measure the intra-abdominal pressure in real time.

[0020] Working effect: Through the pressure sensing function of the abdominal pressure sensor, medical staff can obtain the patient's intra-abdominal pressure change data in a timely manner, quickly identify abnormal conditions, and improve clinical response speed.

[0021] 5. Light source and light signal transmission: The light-emitting LED is used as the light source to transmit the light signal through the flexible optical fiber; the pH-sensitive hydrogel capsule includes a lens part and a color mirror part. When the lens part and the color mirror part develop color, the light color in the flexible optical fiber changes; when the lens part expands in volume, the light intensity changes through the lens effect, so that the light sensing detection module outputs the temperature detection result.

[0022] Working effect: Through the cooperation of light-emitting LED and flexible optical fiber, the optical signal transmission of the detection system is ensured to be stable in various environments, realizing efficient temperature and pH value monitoring.

[0023] 6. Signal processing and alarm system: The output end of the light sensing detection module is electrically connected to the signal processing module, which is used to amplify and analyze the changes in the light signal and transmit the detection results to an external display to ensure the correctness of the tube placement. In addition, the module also includes an alarm module, which automatically triggers an alarm prompt when a significant change in light intensity or light signal is detected.

[0024] Working effect: The signal processing module is combined with the alarm system to ensure the safety of gastric tube placement and monitoring throughout the process, realize automatic abnormal alarm, and reduce medical accidents.

[0025] 7. Wireless data transmission: The control box is equipped with a (wireless communication module) to transmit the relevant data of the light sensing detection module, abdominal pressure sensor and temperature detection to external devices via wireless signals for remote monitoring.

[0026] Working effect: Through the wireless communication function, remote data transmission is realized, so that medical staff can view the patient's physiological status in real time on the remote device, which is suitable for ICU and remote monitoring environment.

[0027] 8. Continuous power supply module: The control box is equipped with a (battery module) to provide continuous power for the micro camera, light-emitting LED, light sensing detection module and abdominal pressure sensor, and is charged through the (charging port) to ensure the stability of the device during long-term use.

[0028] Working effect: The rechargeable battery module ensures stable power of the device during long-term monitoring, which is suitable for long-term continuous monitoring of critically ill patients.

[0029] 9. Biocompatibility and protective design: The flexible optical fiber is made of biocompatible materials to ensure that it will not cause damage to the patient's tissue during insertion and bending; the outer surface of the pH-sensitive hydrogel capsule is covered with a permeable protective film to reduce the interference of mucus in the esophagus on color development and volume changes, ensuring accurate detection.

[0030] Working effect: By adopting biocompatible materials and protective design, it can effectively reduce patient discomfort and detection errors, and improve the stability and safety of the equipment.

[0031] In summary, the present invention integrates multiple functions through improvements on the existing technology, realizes real-time monitoring of the patient's gastric environment, ensures the safety and accuracy of gastric tube insertion, and greatly reduces the operation complexity of medical staff and the pain of patients.

[0032] The beneficial effects achieved by the present invention are:

[0033] 1. In the present invention, a multifunctional detection system is integrated with pH detection, temperature detection and intra-abdominal pressure measurement, which combines the basic functions of traditional gastric tubes and integrates multiple monitoring functions into the same device, thereby reducing the complexity of intubation operation, reducing the workload of medical staff, and reducing the risk of infection caused by repeated intubation for patients.

[0034] 2. In the present invention, the volume expansion and color reaction of the pH-sensitive hydrogel capsule can quickly and accurately determine whether the gastric tube is correctly placed in the stomach, and detect the temperature change in the stomach at the same time. In an acidic environment with a pH value lower than 3, the hydrogel capsule quickly develops color, which is convenient for judging whether the gastric tube is correctly placed in the stomach. Through the design of the lens part and the color mirror part of the hydrogel capsule, when the temperature rises, the volume expansion of the lens part will form a convex lens effect, change the focusing effect of the light in the optical fiber, and then enhance the intensity of the light-sensitive signal. By analyzing the changes in the light signal, the system can simultaneously monitor the temperature changes in the stomach and provide additional physiological parameters for diagnosis.

[0035] 3. In the present invention, the abdominal pressure sensor embedded in the bottom of the light-guiding dark box can monitor the intra-abdominal pressure in real time, helping medical staff to quickly discover abnormal conditions in the patient's abdomen. Medical staff can monitor the entire process of gastric tube insertion in real time to ensure the accuracy of tube placement; in addition, by combining the light sensing detection module with the signal processing module, automatic alarm prompts can be realized to ensure timely detection of abnormal conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the main pipe terminal structure of an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of the structure of a color developing detection tube according to an embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of the installation structure of a pH sensitive hydrogel capsule according to an embodiment of the present invention;

[0040] Figure 5 This is a schematic cross-sectional view of a pH sensitive hydrogel capsule according to an embodiment of the present invention.

[0041] Reference numerals:

[0042] 100. Gastric tube body; 110. Main line; 120. Control box; 111. Miniature camera; 112. Light-emitting LED; 200. Color detection tube; 210. Light detection module; 220. Flexible optical fiber; 230. pH-sensitive hydrogel capsule; 221. Light-guiding dark box; 231. Lens part; 232. Color mirror part; 300. Abdominal pressure sensor; 400. Control box; 410. External display. DETAILED DESCRIPTION

[0043] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0044] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0045] The following describes a gastric tube with temperature and abdominal pressure detection provided by some embodiments of the present invention in conjunction with the accompanying drawings.

[0046] Combination Figure 1-Figure 5 As shown, the present invention provides a gastric tube with temperature and abdominal pressure detection.

[0047] Embodiment 1:

[0048] In this embodiment, the stomach tube body 100 includes a main tube 110, a micro camera 111 and a light-emitting LED 112 are arranged at the distal end thereof, and the other end is connected to the control box 400 through a fixing member. The control box 400 is provided with a signal processing module inside, and the output end is connected to an external display 410.

[0049] Operation process: insert the gastric tube body 100 into the patient's body, monitor it in real time through the micro camera 111, and use the light source provided by the light-emitting LED 112 to assist in detection to ensure the accuracy of the insertion process.

[0050] The color detection tube 200 in this embodiment includes a light sensing detection module 210, a flexible optical fiber 220 and a pH sensitive hydrogel capsule 230. The pH sensitive hydrogel capsule 230 is fixed on the surface of the light guide dark box 221. When the pH sensitive hydrogel capsule 230 contacts an acidic environment, the volume expansion and color change will occur rapidly, thereby changing the light transmittance in the flexible optical fiber 220.

[0051] pH detection: When the pH value is lower than 3, the pH-sensitive hydrogel capsule 230 develops color, transmits the optical signal to the light sensing detection module 210 through the flexible optical fiber 220, and determines whether the insertion position is correct through the signal processing module.

[0052] Temperature detection: When the temperature rises, the lens portion 231 expands to form a convex lens effect, thereby increasing the intensity of light in the flexible optical fiber 220 . The light sensing detection module 210 detects changes in the light signal to determine the temperature.

[0053] In this embodiment, an abdominal pressure sensor 300 is embedded at the bottom of the light-guiding dark box 221 to detect the intra-abdominal pressure.

[0054] Operation process: The abdominal pressure sensor 300 continuously monitors the pressure data. When an abnormality is detected, the signal processing module will automatically trigger an alarm and transmit the data to the external display 410 to remind medical staff to handle it.

[0055] The control box 400 is provided with a wireless communication module, which transmits the detection data to the remote device via wireless signals, and provides continuous power via a battery module to ensure long-term stable operation.

[0056] Application scenarios: Suitable for places that require continuous monitoring, such as ICU and operating rooms.

[0057] Embodiment 2:

[0058] This embodiment optimizes the design of the pH sensitive hydrogel capsule 230 and adopts a double-layer structure.

[0059] The inner layer is the lens portion 231, which displays color when the pH value is lower than 3; the outer color mirror portion 232 is covered with a protective film to prevent mucus interference.

[0060] Working principle: When the pH-sensitive hydrogel capsule 230 comes into contact with an acidic environment, the optical signal in the flexible optical fiber 220 is adjusted through volume change and color reaction.

[0061] A data storage module is added to the control box 400, and a high-sensitivity light sensing detection module 210 is used for signal detection. The detection data is transmitted to a remote device through a wireless communication module, and the data is recorded for analysis.

[0062] Operation steps: Detect the change of the optical signal in the flexible optical fiber 220 through the light sensing detection module 210, store the data and transmit it wirelessly to the external device.

[0063] When the abdominal pressure sensor 300 detects abnormal pressure or the light sensing detection module 210 detects abnormal pH and temperature, the signal processing module will automatically adjust the alarm threshold and trigger an alarm prompt.

[0064] Working process: When an abnormality is detected, the wireless communication module transmits the alarm to the remote device, ensuring timely response even when medical staff are not present.

[0065] This embodiment provides continuous power through the battery module and charges through the charging interface to ensure stability for long-term use. All data is transmitted through the wireless communication module to achieve remote real-time monitoring.

[0066] Application scenarios: Suitable for patients receiving home care and remote monitoring, reducing the workload of medical staff.

[0067] The working principle and use process of the present invention:

[0068] 1. pH value detection principle

[0069] Detection process: After the gastric tube is inserted into the patient's stomach, the pH-sensitive hydrogel capsule 230 comes into contact with the gastric acid environment. When the pH value is lower than 3, the hydrogel in the pH-sensitive hydrogel capsule 230 will quickly undergo a color reaction and expand in volume. The colored hydrogel is transmitted to the light sensing detection module 210 by changing the light transmittance in the flexible optical fiber 220. The light sensing detection module 210 detects changes in the light signal and transmits the signal to the signal processing module in the control box 400. The signal processing module transmits the pH value information to the external display 410 for display, helping medical staff to determine whether the gastric tube is correctly inserted.

[0070] 2. Temperature detection principle

[0071] Detection process: When the device is placed in the stomach, the lens part 231 and the color mirror part 232 will expand in volume when the temperature changes. After the lens part 231 expands, a convex lens effect is formed, which increases the light intensity entering the flexible optical fiber 220. The light sensing detection module 210 detects the change in the temperature in the stomach through the change in the light intensity transmitted by the optical fiber, and outputs it to the external display 410 for display through the signal processing module.

[0072] This temperature detection mechanism helps medical staff understand the patient's stomach temperature status and make corresponding treatment adjustments.

[0073] 3. Principle of intra-abdominal pressure monitoring

[0074] Detection process: The abdominal pressure sensor 300 is embedded in the bottom of the light-guiding dark box 221, and transmits the pressure signal to the signal processing module by monitoring the changes in the patient's intra-abdominal pressure in real time. When the intra-abdominal pressure exceeds the preset safety threshold, the signal processing module will automatically trigger an alarm and transmit the alarm information to the external display 410 and the remote monitoring device to remind medical staff to intervene in time. This function helps to prevent potential complications caused by excessive intra-abdominal pressure during or after the insertion of the gastric tube.

[0075] 4. Data transmission and remote monitoring principles

[0076] Wireless transmission: Through the wireless communication module, the device can wirelessly transmit all test data to the remote monitoring system, ensuring that medical staff can view the patient's real-time data on the remote device. The device also has a data storage function to record the patient's historical test data for subsequent diagnosis and analysis.

[0077] Continuous power supply: The battery module provides continuous power to the entire system through rechargeable batteries, ensuring the stability of the device during long-term use.

[0078] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0079] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. Gastric tube with temperature and abdominal pressure detection, characterized in that: include: The stomach tube body (100) comprises a main pipe (110), and a micro camera (111) and a light-emitting LED (112) located at the other end of the main pipe (110); one end of the main pipe (110) is fixedly connected to a control box (400), and an output end of the control box (400) is electrically connected to an external display device (410); The color developing detection tube (200) comprises a light sensing detection module (210) fixed inside a control box (400), a flexible optical fiber (220), and a pH sensitive hydrogel capsule (230) fixed to one end of the flexible optical fiber (220), one end of the flexible optical fiber (220) is fixedly connected to a light guiding dark box (221), and the pH sensitive hydrogel capsule (230) is fixed to the surface of the light guiding dark box (221). When the pH sensitive hydrogel capsule (230) contacts gastric acid, the volume expands or the color changes. The pH-sensitive hydrogel capsule (230) is a polyacrylate hydrogel having the characteristics of volume expansion and color development when the pH value is lower than 3, and changes the transmittance of light in the optical fiber through volume change when the temperature changes, thereby realizing temperature detection, so as to affect the light color and intensity of light conduction in the flexible optical fiber (220) under the gastric acid environment; An abdominal pressure sensor (300) is embedded and installed at the bottom end of the light-guiding dark box (221) and is used to measure intra-abdominal pressure.

2. The gastric tube with temperature and abdominal pressure detection according to claim 1, characterized in that: The micro camera (111) is connected to an external display device and is used to monitor the insertion process of the gastric tube in real time to ensure that the gastric tube is correctly placed in the target position.

3. The gastric tube with temperature and abdominal pressure detection according to claim 1, characterized in that: The light-emitting LED (112) is used as a light source to transmit light into the flexible optical fiber (220); the pH-sensitive hydrogel capsule (230) comprises a lens portion (231) and a color mirror portion (232) which are sequentially included on the surface of the flexible optical fiber (220); when the lens portion (231) and the color mirror portion (232) develop color, the color of light in the flexible optical fiber (220) is changed; when the volume of the lens portion (231) is expanded, the intensity of light in the optical fiber is changed through the lens effect of light, and the light sensing detection module (210) generates a temperature detection result according to the change of the light signal.

4. The gastric tube with temperature and abdominal pressure detection according to claim 3, characterized in that: The hydrogel capsule (230) is made of a pH-sensitive polyacrylate material. When it comes into contact with the gastric acid environment, it expands in volume and changes in color, thereby changing the light transmittance or light reflectance in the flexible optical fiber (220), so as to output a judgment signal of the catheter placement position through the light sensing detection module (210). The two sides of the lens portion (231) are arc-convex structures that expand into a convex lens shape under a high temperature environment. The periphery of the color mirror portion (232) is provided with a fin surface for contacting gastric acid, and one side of the color mirror portion (232) is surrounded and sleeved on the end of the flexible optical fiber (220).

5. The gastric tube with temperature and abdominal pressure detection according to claim 1, characterized in that: The flexible optical fiber (220) is made of a biocompatible material to ensure the stability of optical signal transmission during the insertion and bending of the gastric tube without causing damage to the patient's tissue; the outer surface of the pH-sensitive hydrogel capsule (230) is provided with a water-permeable protective film to reduce the interference of mucus in the esophagus on the color development or volume change of the hydrogel, ensuring that changes only occur in a gastric acid environment.

6. The gastric tube with temperature and abdominal pressure detection according to claim 1, characterized in that: The output end of the light sensing detection module (210) is electrically connected to a signal processing module for amplifying and analyzing light signal changes, and transmitting the detection results to an external display device to confirm the correct placement of the gastric tube; the signal processing module also includes an alarm module, which automatically triggers an alarm prompt when a significant change in light intensity or light signal is detected, so as to ensure that the gastric tube is correctly placed and promptly remind medical staff.

7. The gastric tube with temperature and abdominal pressure detection according to claim 1, characterized in that: The control box (400) is provided with a wireless communication module for transmitting the relevant data of the light sensing detection module (210), the abdominal pressure sensor (300) and the temperature detection to an external device or a monitoring system via wireless signals, so that medical staff can monitor the working status of the gastric tube and the physiological parameters of the patient in real time on the remote terminal device.

8. The gastric tube with temperature and abdominal pressure detection according to claim 1, characterized in that: The control box (400) is provided with a rechargeable battery module to provide continuous power supply for the micro camera (111), the light-emitting LED (112), the light sensing detection module (210) and the abdominal pressure sensor (300); the battery module is charged through a charging interface outside the control box to ensure the stability and reliability of the device during long-term use.

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