Stomach tube capable of monitoring intragastric pressure and PH value of gastric juice in real time

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a stomach tube capable of monitoring intragastric pressure and the PH value of gastric juice in real time, an air bag is arranged on the outer side wall of a catheter body, a pressure sensor is arranged on the inner side wall of the catheter body, and the air bag and the pressure sensor are oppositely arranged at one end of the catheter body. The pressure sensor is electrically connected with an external measuring instrument through a circuit; a single-mode optical fiber is arranged in the side wall of the catheter body, one end of the single-mode optical fiber is connected with a PH sensitive film, the other end of the single-mode optical fiber is connected with a PH value monitor, and after the catheter body extends into the stomach of a patient, related lines are connected into a detector. A medical worker can obtain the intragastric pressure and gastric juice PH value information of the stomach of a patient from the detector in real time and obtain the gastric peristalsis condition of the patient and gastric acid secretion and gastric acid reflux information in time, and a doctor can more accurately evaluate the digestive tract function and the stomach health condition of the patient. And important guidance is provided for diagnosis and treatment of stomach diseases.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a gastric tube capable of monitoring intragastric pressure and gastric fluid pH value in real time. Background Art

[0002] Gastric tubes are a common medical device with a wide range of applications. They are inserted into the patient's stomach cavity for purposes such as feeding, drainage, and venting. They can provide effective treatment and support for nutritional support, treatment of digestive system diseases, and gastric drainage. However, most current gastric tubes are unable to monitor the patient's intragastric pressure and gastric pH in real time, preventing medical staff from obtaining timely information on the patient's gastric motility, gastric acid secretion, and acid reflux. This information plays a crucial guiding role in the accurate diagnosis and treatment of gastric diseases. Therefore, developing more advanced gastric tube technology that can monitor intragastric pressure and gastric pH in real time will provide clinical medicine with more accurate and comprehensive patient monitoring and management tools, helping to improve the diagnosis and treatment of gastric diseases and enhance patient comfort and treatment quality. To this end, we provide a gastric tube that can monitor intragastric pressure and gastric pH in real time.

[0003] In summary, there is an urgent need for a gastric tube that can monitor the intragastric pressure and gastric fluid pH value in real time, which will provide more accurate and comprehensive patient monitoring and management for clinical medicine. Utility Model Content

[0004] The purpose of the invention of the utility model is to provide a gastric tube that can monitor the intragastric pressure and gastric juice pH value in real time to address the problem that most gastric tubes cannot monitor the patient's intragastric pressure and gastric juice pH value in real time, which makes it impossible for medical staff to obtain the patient's gastric motility and gastric acid secretion and gastric acid reflux information in a timely manner.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A gastric tube capable of real-time monitoring of intragastric pressure and gastric fluid pH comprises a catheter body, characterized in that: an airbag is provided on the outer wall of the catheter body, a pressure sensor is provided on the inner wall, the airbag and the pressure sensor are arranged oppositely at one end of the catheter body, and the pressure sensor is electrically connected to an external measuring instrument via a circuit; a single-mode optical fiber is provided in the side wall of the catheter body, one end of the single-mode optical fiber is connected to a pH sensitive membrane, and the other end of the single-mode optical fiber is connected to a pH monitor.

[0007] Furthermore, the sensing head of the pressure sensor is in contact with the inner wall of the catheter body.

[0008] Furthermore, a pipeline outlet is provided at the other end of the catheter body, and the pressure sensor and the single-mode optical fiber are both led out through the pipeline outlet.

[0009] Furthermore, the pH sensitive membrane is a pH sensitive polymer material structure.

[0010] Furthermore, the single-mode optical fiber is bonded to the pH sensitive film.

[0011] Furthermore, an optical fiber tube is provided in the side wall of the catheter body, and the single-mode optical fiber penetrates into the side wall of the catheter body through the optical fiber tube.

[0012] Furthermore, the optical fiber pipes are symmetrically arranged in the side walls of the catheter body, all the optical fiber pipes are provided with single-mode optical fibers, and one end of each single-mode optical fiber is connected to a pH sensitive membrane.

[0013] Furthermore, a line pipe is provided outside the line.

[0014] Furthermore, the outer shape of the catheter body is an L-shaped structure.

[0015] Compared with the existing technology, the advantages of the present invention are: after the catheter body is inserted into the patient's stomach, the relevant lines are connected to the detector, and medical personnel can obtain real-time information on the patient's intragastric pressure and gastric fluid pH value from the detector, and timely obtain information on the patient's gastric motility, gastric acid secretion and gastric acid reflux. Doctors can more accurately evaluate the patient's digestive tract function and gastric health status, providing important guidance for the diagnosis and treatment of gastric diseases.

[0016] Other beneficial effects of this application are:

[0017] 1. The sensing head of the pressure sensor is fitted with the inner wall of the catheter body. The intragastric pressure acts on the airbag, causing the gas in the micro-airbag to directly act on the pressure sensor through the catheter body to produce pressure changes, thereby realizing real-time monitoring of the intragastric pressure.

[0018] 2. A line pipe is installed on the outside of the line to prevent stomach acid from corroding the line.

[0019] 3. The line pipes are symmetrically arranged in the side wall of the catheter body. Single-mode optical fibers are provided in all the line pipes. One end of each single-mode optical fiber is connected to a pH sensitive membrane. By setting up multiple pH sensitive membranes to detect pH values, the accuracy of gastric acid detection can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a gastric tube that can monitor the intragastric pressure and gastric fluid pH value in real time.

[0021] Figure 2 The utility model provides a schematic structural diagram of one end of a gastric tube capable of real-time monitoring of intragastric pressure and gastric fluid pH value.

[0022] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0023] Marking in the figure

[0024] 1-catheter body; 2-airbag; 3-pipeline outlet; 4-line pipeline; 5-optical fiber pipeline; 6-pressure sensor. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] Example 1

[0027] like Figures 1 to 3 The present embodiment shown is a gastric tube capable of real-time monitoring of intragastric pressure and gastric fluid pH, including a catheter body. An airbag 2 is provided on the outer wall of the catheter body 1, and a pressure sensor 6 is provided on the inner wall. The airbag 2 and the pressure sensor 6 are arranged oppositely at one end of the catheter body 1, and the pressure sensor 6 is electrically connected to an external measuring instrument via a circuit. A single-mode optical fiber is provided in the side wall of the catheter body 1, one end of the single-mode optical fiber is connected to a pH sensitive membrane, and the other end of the single-mode optical fiber is connected to a pH monitor.

[0028] Furthermore, a pipeline outlet 3 is provided at the other end of the catheter body 1 , and the pressure sensor 6 and the single-mode optical fiber are both led out through the pipeline outlet 3 .

[0029] Furthermore, the pH sensitive membrane is a pH sensitive polymer material structure.

[0030] Furthermore, the single-mode optical fiber is bonded to the pH sensitive film.

[0031] Furthermore, an optical fiber tube 5 is provided in the side wall of the catheter body 1 , and the single-mode optical fiber penetrates into the side wall of the catheter body 1 through the optical fiber tube 5 .

[0032] Furthermore, the outer shape of the catheter body 1 is an L-shaped structure.

[0033] An optical fiber conduit is provided on the inner wall of the catheter body 1 for placing a single-mode optical fiber. The single-mode optical fiber passes through the optical fiber conduit 5 at the tail end of the catheter body 1 and passes through the pipeline outlet 3 at the head of the catheter body 1. After the single-mode optical fiber is passed through, a polymer material that is harmless to the human body and has pH sensitivity is bonded to the end face of the single-mode optical fiber. After the single-mode optical fiber passes through the pipeline outlet 3, a circulator is used to connect the spectrometer and the laser light source to achieve real-time monitoring of the pH value of gastric fluid. The line of the pressure sensor passes through the pipeline outlet 3 through the pressure sensor line conduit 4 and is connected to a measuring instrument. The intragastric pressure acts on the micro-airbag 2, causing the pressure of the gas in the micro-airbag 2 to change on the pressure sensor, thereby achieving real-time monitoring of the intragastric pressure.

[0034] Example 2

[0035] like Figure 3 In the embodiment shown, the sensing head of the pressure sensor is in contact with the inner wall of the catheter body 1. The intragastric pressure acts on the airbag 2, causing the gas in the micro-airbag 2 to directly act on the pressure sensor through the catheter body 1 to produce a pressure change, thereby realizing real-time monitoring of the intragastric pressure.

[0036] Example 3

[0037] like Figures 1 to 3 As shown, the optical fiber pipes 5 are symmetrically arranged in the side wall of the catheter body 1. All the optical fiber pipes 5 are provided with single-mode optical fibers. One end of each single-mode optical fiber is connected to a pH sensitive membrane. By setting multiple pH sensitive membranes to detect pH values, the accuracy of gastric acid detection can be improved.

[0038] Example 4

[0039] like Figures 1 to 3 As shown, a line pipe 4 is provided on the outside of the line to prevent stomach acid from corroding the line.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gastric tube capable of real-time monitoring of intragastric pressure and gastric fluid pH, comprising a catheter body, characterized in that: An airbag is provided on the outer wall of the catheter body, and a pressure sensor is provided on the inner wall. The airbag and the pressure sensor are arranged opposite to each other at one end of the catheter body, and the pressure sensor is electrically connected to an external measuring instrument through a circuit; a single-mode optical fiber is provided inside the side wall of the catheter body, one end of the single-mode optical fiber is connected to a pH sensitive membrane, and the other end of the single-mode optical fiber is connected to a pH monitor.

2. A gastric tube capable of real-time monitoring of intragastric pressure and gastric fluid pH according to claim 1, characterized in that: The sensing head of the pressure sensor is in contact with the inner wall of the catheter body.

3. A gastric tube capable of real-time monitoring of intragastric pressure and gastric fluid pH according to claim 1, characterized in that: The other end of the catheter body is provided with a pipeline outlet, and the pressure sensor and the single-mode optical fiber are both led out through the pipeline outlet.

4. A gastric tube capable of real-time monitoring of intragastric pressure and gastric fluid pH according to claim 1, characterized in that: The pH sensitive membrane is a pH sensitive polymer material structure.

5. A gastric tube capable of real-time monitoring of intragastric pressure and gastric fluid pH according to claim 4, characterized in that: The single-mode optical fiber is bonded to the pH sensitive film.

6. The gastric tube capable of real-time monitoring of intragastric pressure and gastric fluid pH according to claim 1, characterized in that: An optical fiber pipe is provided in the side wall of the catheter body, and the single-mode optical fiber penetrates into the side wall of the catheter body through the optical fiber pipe.

7. A gastric tube capable of real-time monitoring of intragastric pressure and gastric fluid pH according to claim 6, characterized in that: The optical fiber pipes are symmetrically arranged in the side walls of the catheter body. Single-mode optical fibers are arranged in all the optical fiber pipes. One end of each single-mode optical fiber is connected to a pH sensitive membrane.

8. A gastric tube capable of real-time monitoring of intragastric pressure and gastric fluid pH according to any one of claims 1 to 7, characterized in that: A line pipeline is provided on the outside of the line.

9. A gastric tube capable of real-time monitoring of intragastric pressure and gastric fluid pH according to any one of claims 1 to 7, characterized in that: The outer shape of the catheter body is an L-shaped structure.

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