Gastric tube device for measuring the pH value of gastric juice

Abstract

This gastric tube device for measuring the pH value of gastric fluid integrates the intubation procedure with the pH measurement function, eliminating the need for additional gastric fluid aspiration, simplifying the procedure, reducing the risk of gastric fluid exposure and contamination, improving clinical work efficiency, and further enhancing the accuracy and reliability of pH value measurement by ensuring that the test strip is not contaminated with saliva or mucus as it passes through the esophagus using a protective plate, thereby ensuring that the test strip comes into contact only with gastric fluid. [Solution] The device has a conduit 1, a guide head attached to the front end of the conduit, a funnel-shaped tube 3 fixedly connected to the rear end of the conduit, a guide wire 4 inserted inside the conduit, the front end of the guide wire extending into the inside of the guide head, the rear end of the guide wire extending to the outside of the funnel-shaped tube, a test paper attachment component attached to the front end of the guide wire, and a test paper for measuring the pH value of the patient's gastric juice placed inside the test paper attachment component.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and particularly to a gastric tube device for measuring the pH value of gastric juice.

Background Art

[0002] For the operation method for measuring the pH value of gastric juice, there are usually various differences depending on the measurement environment and object (confirmation of the position of the gastric tube / evaluation of gastric juice secretion function). The core is to collect a gastric juice sample using a precise pH test paper or a dedicated measuring device to measure the acidity and alkalinity.

[0003] For the measurement method using a precise pH test paper, a precise pH test paper with a measurement range of 0.5 - 5.0 and an accuracy of ±0.5 (ordinary wide-range test papers cannot be used due to excessive errors and are not applicable) is selected, and a 20 mL sterile syringe is used for sample collection. During sample collection, the patient is kept in a semi-recumbent position, the catheter is inserted, then gloves are worn, the syringe is connected to the end of the catheter, and 1 - 2 mL of gastric juice (enough to wet the test paper) is slowly aspirated, avoiding damage to the gastric mucosa caused by violent suction.

[0004] However, in this method, even after an appropriate amount of gastric juice is aspirated with a syringe, a considerable amount of gastric juice still remains in the catheter. Therefore, when the gastric tube is removed, gastric juice leaks from the catheter, soiling sheets, the floor, etc. Moreover, the gastric juice in the syringe becomes inconvenient for post-treatment as medical waste. In addition, some neonatal patients have little gastric juice, so gastric juice cannot be aspirated to confirm the color of the test paper. In response to this, we propose a gastric tube device for measuring the pH value of gastric juice to solve the above problems.

Summary of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide a gastric tube device for measuring the pH value of gastric juice in order to solve the problems raised in the above background art.

Means for Solving the Problems

[0006] To achieve the above objective, this invention provides the following technical means.

[0007] A gastric tube device for measuring the pH value of gastric juice is It has a conduit, a guide head attached to the front end of the conduit, a funnel-shaped tube fixedly connected to the rear end of the conduit, a guide wire inserted inside the conduit, the front end of the guide wire extending into the inside of the guide head, the rear end of the guide wire extending outside the funnel-shaped tube, a test strip attachment component attached to the front end of the guide wire, and a test strip for measuring the pH value of the patient's gastric juice provided inside the test strip attachment component;

[0008] The test paper mounting component has a mounting frame fixed to one end of the guide wire, a test paper groove for attaching the test paper is provided on the inner wall of the mounting frame, a color detection line is provided inside the guide wire, the color detection line is connected to the test paper, the outer surface of the guide wire is slidably fitted into a support seat, two protective plates are fixedly connected to the front end of the support seat, and a protective groove is formed between the support seat and the protective plates for inserting the mounting frame to completely enclose the test paper.

[0009] Preferably, a male thread is provided on the outer surface of the front end of the conduit, and a female thread is provided on the inner wall of the connecting pipe of the guide head, and the guide head is attached to the conduit by the thread.

[0010] Preferably, a plurality of side openings are provided around the guide head, and a bottom communication opening is provided on the bottom surface of the guide head, the diameter of which is greater than the width of the mounting frame.

[0011] Preferably, elastic protrusions are fixedly connected to both sides of the mounting frame, and hooking grooves are provided on the opposing surfaces of the two protective plates, and the elastic protrusions fit into the hooking grooves, and the elastic protrusions are elastic hemispherical hooking blocks.

[0012] Preferably, a support rod is fixedly attached to the outer surface of the support seat, and the support rod is fixedly connected to the inner wall of the conduit.

[0013] Preferably, an air bag is fixedly attached to the outer surface of the conduit approaching the funnel-shaped tube, an air injection tube is attached on the air bag, an air valve is fixedly attached to one end of the air injection tube, and a sealing lid is fixedly attached to the side surface of the funnel-shaped tube. [Effects of the Invention]

[0014] The gastric tube device for measuring the pH value of gastric juice according to this invention has the following beneficial effects compared to existing technology.

[0015] This gastric tube device integrates the intubation procedure with the pH measurement function, eliminating the need for additional gastric fluid aspiration, simplifying the operating procedure, reducing the risk of gastric fluid exposure and contamination, and improving clinical work efficiency. Furthermore, the protective plate prevents the test strip from being contaminated with saliva or mucus as it passes through the esophagus, ensuring that the test strip comes into contact only with gastric fluid, significantly improving the accuracy and reliability of pH measurement. In addition, since the device does not require gastric fluid aspiration, it easily meets the needs of patients with low gastric fluid levels. [Brief explanation of the drawing]

[0016] [Figure 1] Figure 1 is a schematic diagram showing the structure of the present invention. [Figure 2] Figure 2 is an enlarged view of section A in Figure 1. [Figure 3] Figure 3 is a cross-sectional view of the guide head of the present invention. [Figure 4] Figure 4 is a cross-sectional view of the inspection seat of the present invention. Forms for implementing a utility model

[0017] As shown in Figure 1-4, the gastric tube device for measuring the pH value of gastric juice has a conduit 1. The conduit 1 is a hose with an inner diameter of approximately 5 mm and moderate strength that makes it difficult to bend in the throat. A guide head 2 is attached to the front end of the conduit 1, and a funnel-shaped tube 3 is fixedly connected to the rear end of the conduit 1. A guide wire 4 is inserted inside the conduit 1, with the front end of the guide wire 4 extending into the inside of the guide head 2 and the rear end of the guide wire 4 extending to the outside of the funnel-shaped tube 3. A test strip attachment part is attached to the front end of the guide wire 4, and a test strip 14 for measuring the pH value of the patient's gastric juice is placed inside the test strip attachment part. The test strip 14 is a gastric juice pH test paper.

[0018] As shown in Figure 3, a male thread is provided on the outer surface of the front end of the conduit 1, and a female thread is provided on the inner wall of the connecting tube of the guide head 2, so that the guide head 2 is attached to the conduit 1 by the thread. By rotation, the guide head 2 can be easily attached to or removed from the conduit 1, making it convenient to switch and clean the guide head 2. Multiple side openings 9 are provided around the guide head 2, and a bottom communication opening 10 is provided on the bottom surface of the guide head 2, so that gastric juice can pass through the multiple openings and enter the guide head sufficiently and come into full contact with the test paper.

[0019] The test strip mounting component has a mounting frame 13 fixed to one end of the guide wire 4. The inner wall of the mounting frame 13 is provided with a test strip groove for attaching the test strip 14, and a color-detecting line is provided inside the guide wire 4, connecting the color-detecting line to the test strip 14. When the test strip 14 comes into contact with gastric juice, the color is transmitted to the color-detecting line all the way to the opposite end of the guide wire 4, making it easier for the worker to confirm the result. The outer surface of the guide wire 4 is slidably fitted into a support seat 11, and two protective plates 12 are fixedly connected to the front end of the support seat 11. A protective groove is formed between the support seat 11 and the protective plates 12, where the mounting frame 13 is placed to completely enclose the test strip 14. This protective groove prevents the test strip 14 from being contaminated by saliva or mucus in the esophagus and prevents the color reaction from occurring too quickly. The diameter of the bottom communication opening 10 is larger than the width of the mounting frame 13, so that the mounting frame 13 is exposed from the bottom communication opening 10 and comes into contact with the gastric juice, and the gastric juice is examined using the test paper 14.

[0020] As shown in Fig. 4, elastic convex portions 15 are fixedly connected to both side surfaces of the mounting frame body 13. Hanging grooves are provided on the opposing surfaces of the two protection plates 12, and the elastic convex portions 15 are adapted to the hanging grooves. The test paper 14 is attached to the test paper groove of the mounting frame body 13, and the support seat 11 is moved so as to slide on the guide wire 4, whereby the protection plate 12 wraps around the mounting frame body 13 and the elastic convex portion 15 is hooked into the hanging groove for temporary fixation. The combination of the elastic convex portion 15 and the hanging groove ensures that the protection plate is not accidentally opened during insertion, facilitating the protection of the test paper 14. The elastic convex portion 15 is an elastic hemispherical hanging block for facilitating subsequent separation of the elastic convex portion 15 from the hanging groove.

[0021] As shown in Fig. 3, a support rod 16 is fixedly attached to the outer surface of the support seat 11, and the support rod 16 is fixedly connected to the inner wall of the conduit 1. The support rod 16 is used to fixedly support the support seat 11. After the front end of the conduit 1 reaches a predetermined position in the stomach, the doctor or nurse slowly pushes the guide wire 4 forward, the mounting frame body 13 advances along the guide wire 4, the elastic convex portion 15 disengages from the hanging groove, the protection plate 12 separates from the mounting frame body 13, the mounting frame body 13 is exposed from the bottom communication port 10, and the test paper 14 comes into contact with gastric juice, thereby facilitating gastric juice inspection.

[0022] In addition, a balloon 8 is fixedly attached to the outer surface of the conduit 1 approaching the funnel-shaped tube 3, an air injection tube 6 is attached to the balloon 8, and an air valve 7 is fixedly attached to one end of the air injection tube 6. When it is necessary to keep the gastric tube in place for a long time, an appropriate amount of air is blown into the balloon 8 through the air injection tube 6 to inflate the balloon, thereby playing a role in internal fixation and preventing the gastric tube from moving. A sealing cover body 5 is fixedly attached to the side surface of the funnel-shaped tube 3, whereby the funnel-shaped tube 33 is closed when the gastric tube is not in use.

[0023] The operating principle of the present invention is as follows.

[0024] Attach the test paper 14 to the test paper groove of the mounting frame 13, move the support seat 11 so that it slides on the guide wire 4, whereby the protection plate 12 wraps around the mounting frame 13 and the elastic protrusion 15 is hooked into the hooking groove for temporary fixation. The combination of the elastic protrusion 15 and the hooking groove ensures that the protection plate is not accidentally opened during insertion, preventing the test paper 14 from being soiled by saliva or mucus in the esophagus and preventing the color reaction from occurring prematurely. Insert the front end of the assembled guide wire 4 into the conduit 1 until the mounting frame 13 is located inside the guiding head 2.

[0025] The doctor or nurse holds the rear end of the conduit 1 and slowly inserts the guiding head 2 into the esophagus through the nose or mouth. The conduit 1 is a hose with an inner diameter of about 5 mm and moderate strength that is difficult to bend in the pharyngeal region. After the doctor or nurse determines that the front end of the conduit 1 has reached a predetermined position in the stomach, slowly push the guide wire 4 forward. The mounting frame 13 advances along the guide wire 4, the elastic protrusion 15 disengages from the hooking groove, the protection plate 12 separates from the mounting frame 13, the mounting frame 13 is exposed from the bottom communication port 10, and the test paper 14 changes color when it touches the gastric juice. The doctor or nurse determines the pH value by colorimetry.

[0026] When it is necessary to keep the gastric tube in place for a long time, inject an appropriate amount of air into the balloon 8 through the air injection tube 6 to inflate the balloon, thereby playing a role in internal fixation and preventing the gastric tube from moving. When the gastric tube is not in use, the funnel-shaped tube 33 is closed by the sealing cover 5.

Explanation of Reference Numerals

[0027] 1 - Conduit; 2 - Guiding head; 3 - Funnel-shaped tube; 4 - Guide wire; 5 - Sealing cover; 6 - Air injection tube; 7 - Air valve; 8 - Balloon; 9 - Side opening; 10 - Bottom communication port; 11 - Support seat; 12 - Protection plate; 13 - Mounting frame; 14 - Test paper; 15 - Elastic protrusion; 16 - Support rod.

Claims

1. A gastric tube device having a conduit for measuring the pH value of gastric juice, A guide head (2) is attached to the front end of the conduit (1), a funnel-shaped tube (3) is fixedly connected to the rear end of the conduit (1), a guide wire (4) is inserted inside the conduit (1), the front end of the guide wire (4) extends into the inside of the guide head (2), the rear end of the guide wire (4) extends to the outside of the funnel-shaped tube (3), a test paper attachment component is attached to the front end of the guide wire (4), and a test paper (14) is placed inside the test paper attachment component; The test paper mounting component has a mounting frame (13) fixed to one end of the guide wire (4), a test paper groove for attaching the test paper (14) is provided on the inner wall of the mounting frame (13), a color detection line is provided inside the guide wire (4), the color detection line is connected to the test paper (14), the outer surface of the guide wire (4) is slidably fitted into a support seat (11), two protective plates (12) are fixedly connected to the front end of the support seat (11), and a protective groove is formed between the support seat (11) and the protective plates (12) to insert the mounting frame (13) and completely enclose the test paper (14). A gastric tube device for measuring the pH value of gastric juice, characterized by the above features.

2. The outer surface of the front end of the conduit (1) is provided with male threads, and the inner wall of the connecting pipe of the guide head (2) is provided with female threads, so that the guide head (2) is attached to the conduit (1) by the threads. A gastric tube device for measuring the pH value of gastric juice, as described in feature 1.

3. Multiple side openings (9) are provided around the guide head (2), a bottom communication opening (10) is provided on the bottom surface of the guide head (2), and the diameter of the bottom communication opening (10) is greater than the width of the mounting frame (13). A gastric tube device for measuring the pH value of gastric juice, as described in feature 1.

4. Elastic protrusions (15) are fixedly connected to both sides of the mounting frame (13), and hooking grooves are provided on the opposing surfaces of the two protective plates (12), the elastic protrusions (15) fit into the hooking grooves, and the elastic protrusions (15) are elastic hemispherical hooking blocks. A gastric tube device for measuring the pH value of gastric juice, as described in feature 1.

5. A support rod (16) is fixedly attached to the outer surface of the support seat (11), and the support rod (16) is fixedly connected to the inner wall of the conduit (1). A gastric tube device for measuring the pH value of gastric juice, as described in feature 1.

6. An air bag (8) is fixedly attached to the outer surface of the conduit (1) approaching the funnel-shaped tube (3), an air injection tube (6) is attached on the air bag (8), an air valve (7) is fixedly attached to one end of the air injection tube (6), and a sealing lid (5) is fixedly attached to the side surface of the funnel-shaped tube (3). A gastric tube device for measuring the pH value of gastric juice, as described in feature 1.

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