Stomach tube capable of preventing misplug

Abstract

The utility model belongs to the field of medical instruments, and particularly relates to a stomach tube capable of preventing misplug. The stomach tube comprises a stomach tube body, the top of the stomach tube body is connected with a tube cap, a partition plate is fixed in the stomach tube body, two sealing blocks are buckled in the upper end of the tube cap, through holes are formed in the two sealing blocks, and a first guide wire and a second guide wire are arranged in a left tube cavity and a right tube cavity respectively. One end of the first guide wire is positioned at a tube opening at the lower end of the left tube cavity and is fixedly provided with a camera component; one end of the second guide wire is located at a pipe opening in the lower end of the right pipe cavity and is fixedly provided with a PH monitoring probe, the other end of the second guide wire penetrates out of the pipe cap and is fixedly provided with a PH monitor, and a sleeve rod is installed on the sealing block on the right side in a penetrating mode and is arranged on the second guide wire in a sleeving mode. The position of the end portion of the stomach tube can be observed in real time through the camera, the stomach tube is prevented from being inserted into the lung of a patient by mistake in time, and medical staff are prompted in time through the PH monitoring probe and the PH monitor when the stomach tube slips.

Description

Technical Field

[0001] The utility model belongs to the field of medical instruments, and in particular relates to a gastric tube which can prevent mis-insertion. Background Art

[0002] A gastric tube is used in special circumstances to help patients who cannot swallow deliver necessary water and food. It is generally made of polyurethane or silicone and comes in different sizes and thicknesses. The gastric tube is inserted through the nose or mouth, passes through the pharynx, and through the esophagus to the stomach. When inserting the tube into the pharynx, the patient's head needs to be lifted up so that the lower jaw is close to the chest wall to increase the curvature of the throat, making it easier for the gastric tube to slide along the back wall and pass smoothly through the throat into the esophagus. At the same time, the patient is asked to swallow, and then the gastric tube is checked to see if it is in the stomach to avoid the end of the gastric tube being in the lungs.

[0003] Currently, there are generally three methods to detect whether a gastric tube is in the stomach. These methods require detection after insertion. At this time, the gastric tube may have been inserted into the patient's lungs. Although the existing technology has accelerated the detection speed, repeated insertion into the patient's lungs may still occur. In addition, the gastric tube can easily slip, causing the end of the gastric tube to not be in the stomach. Therefore, it is necessary to be able to detect the position of the end of the gastric tube in real time. Utility Model Content

[0004] The purpose of the utility model is to provide a gastric tube that can prevent mis-insertion, which can prevent the gastric tube from being inserted into the lungs and detect the position of the end of the gastric tube.

[0005] The anti-misinsertion gastric tube comprises a gastric tube, a tube cap is connected to the top of the gastric tube, a partition is fixed in the gastric tube for dividing the gastric tube into two independent left and right tube cavities, two sealing blocks are buckled in the upper end of the tube cap and are distributed on the left and right and are used to jointly seal the tube cap, and both sealing blocks are provided with through holes communicating with each other up and down, and a first guide wire and a second guide wire are respectively provided in the left tube cavity and the right tube cavity, one end of the first guide wire is located at the tube orifice at the lower end of the left tube cavity and is fixed with a camera assembly for shooting the picture during the insertion of the gastric tube, and the other end passes through the tube cap through the through hole on the left; one end of the second guide wire is located at the tube orifice at the lower end of the right tube cavity and is fixed with a pH monitoring probe for detecting the pH of gastric fluid, and the other end passes through the tube cap through the through hole on the right and is fixed with a pH monitor electrically connected to the pH monitoring probe, and a sleeve rod is installed on the sealing block on the right and is matched with it in a sliding seal, and the sleeve rod is sleeved on the second guide wire.

[0006] Furthermore, the diameter of the lower end of the tube cap is smaller than the diameter of the upper end, the top of the gastric tube is fixed to the bottom of the tube cap and the diameter of the lower end of the tube cap is equal to the inner diameter of the gastric tube.

[0007] Furthermore, the partition extends upward into the tube cap and divides the interior of the tube cap into two independent left and right areas.

[0008] Furthermore, a limiting plate is fixed on the top of the sealing block. The limiting plate is semicircular and has a circular hole concentric with the corresponding through hole. The maximum outer diameter of the pipe cap is smaller than the diameter of the limiting plate.

[0009] Furthermore, the camera assembly includes a guide wire head, a mounting groove is provided at the bottom of the guide wire head, and a camera is fixed in the mounting groove.

[0010] Furthermore, the pH monitor consists of a housing, a microprocessor, a display screen, buttons, a speaker and a battery.

[0011] Furthermore, the first guide wire and the second guide wire are both hollow structures, and are each provided with a signal transmission line therein.

[0012] Furthermore, a connecting belt with one end fixed thereto is provided on the left side of the pipe cap, and a sealing plug for sealing the through hole on the sealing block on the left side is fixed to the other end of the connecting belt.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention connects a camera to the first guide wire so that medical personnel can observe the position of the end of the gastric tube in real time during the process of inserting the gastric tube, thereby being able to judge the insertion direction of the gastric tube at the first time, preventing the gastric tube from continuing to enter the patient's lungs after being mistakenly inserted into the trachea, and only removing it after detection, thereby avoiding the situation where the gastric tube is repeatedly inserted into the patient's lungs; the present invention also monitors the pH value of the patient's gastric fluid through the pH monitoring probe and the pH monitor, and when the gastric tube slips and causes one end of the gastric tube provided with the pH monitoring probe to be separated from the gastric fluid or when the patient's gastric condition changes and causes the pH of the gastric fluid to change significantly, the medical personnel can be promptly prompted, and at the same time, the position of the pH monitoring probe is adjusted by a sleeve rod that can be moved up and down so that the pH monitoring probe can fully contact the gastric fluid, avoiding the situation where the pH monitoring probe does not contact the gastric fluid when the gastric tube does not slip and the patient has less gastric fluid, thereby triggering the alarm of the pH monitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 for Figure 1 Enlarged cross-sectional view at AA in the middle;

[0017] Figure 3 for Figure 1 Top view of the middle tube cap;

[0018] Figure 4 This is a diagram of the use state of the utility model;

[0019] The names of the components in the figure are: 1. Gastric tube; 2. First guide wire; 3. Partition; 4. Guide wire head; 5. Camera; 6. pH monitoring probe; 7. Second guide wire; 8. Sleeve rod; 9. Sealing block; 10. Limiting plate; 11. pH monitor; 12. Sealing plug; 13. Connecting belt; 14. Tube cap. DETAILED DESCRIPTION

[0020] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings, but this does not limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0021] Example 1

[0022] The present embodiment of the present invention provides a gastric tube for preventing misinsertion, comprising a gastric tube 1, the top of which is connected to a tube cap 14. Figure 1 、 Figure 3 and Figure 4 As shown, the diameter of the lower end of the tube cap 14 is smaller than that of the upper end, the top of the gastric tube 1 is fixed to the bottom of the tube cap 14, and the diameter of the lower end of the tube cap 14 is equal to the inner diameter of the gastric tube 1, wherein the gastric tube 1 and the tube cap 14 are integrally formed; in actual application, the upper end of the gastric tube 1 can also be fixedly installed in the lower end of the tube cap 14;

[0023] The stomach tube 1 is fixed with a partition 3 for dividing the stomach tube 1 into two independent left and right lumens. In this embodiment, the stomach tube 1 is transformed into a double-lumen structure by the partition 3, and the cross section is a symmetrical double D-shaped structure. Figure 2 As shown, the partition 3 and the gastric tube 1 are integrally formed;

[0024] like Figure 1 and Figure 3 As shown, the partition 3 extends upward into the tube cap 14 and divides the interior of the tube cap 14 into two independent areas on the left and right;

[0025] refer to Figure 1 , the upper end of the tube cap 14 is buckled with two sealing blocks 9 distributed on the left and right and used to jointly close the tube cap 14. Both sealing blocks 9 are provided with through holes communicating with each other from top to bottom. In this embodiment, the upper end of the tube cap 14 is sealed by two sealing blocks 9, and the buckling installation method also facilitates the disassembly and assembly of the sealing blocks 9. The two sealing blocks 9 are both in the shape of an inverted semi-conical cone and are made of rubber. The through hole on the left sealing block 9 is used to connect a syringe or a negative pressure bottle to facilitate medical personnel to inject food or liquid medicine or extract part of the gastric juice, etc.; Figure 1As shown, a connecting band 13 with one end fixed thereto is provided on the left side of the tube cap 14. A sealing plug 12 for sealing the through hole on the left side of the sealing block 9 is fixed to the other end of the connecting band 13. The through hole on the left side of the sealing block 9 is sealed by the sealing plug 12, which can prevent foreign matter from entering the patient's stomach through the gastric tube 1 and effectively prevent gastric fluid from flowing out of the left lumen of the gastric tube 1 under the operation of non-medical personnel. The connecting band 13 is made of soft plastic.

[0026] A first guide wire 2 and a second guide wire 7 are respectively provided in the left and right lumen. One end of the first guide wire 2 is located at the tube mouth at the lower end of the left lumen and is fixed with a guide wire head 4. A mounting groove is provided at the bottom of the guide wire head 4, and a camera 5 is fixed in the mounting groove. The other end of the first guide wire 2 passes through the tube cap 14 through the through hole on the left (the guide wire head 4 and the camera 5 in this paragraph constitute the camera assembly for shooting the picture during the insertion of the gastric tube 1). In this embodiment, the camera 5 enables medical personnel to realize the insertion of the gastric tube 1 during the insertion of the gastric tube 1. The position of the end of the gastric tube 1 can be observed at the same time, so that the insertion direction of the gastric tube 1 can be judged in the first time, which not only prevents the gastric tube from continuing to enter the patient's lungs after being mistakenly inserted into the trachea, but also prevents it from being removed only after detection, and also avoids the situation where the gastric tube 1 is repeatedly inserted into the patient's lungs; the camera 5 in this embodiment is a prior art, such as the lens of an endoscope. In actual application, this embodiment can also directly use an endoscope, and insert the lens part of the endoscope from the through hole of the left sealing block 9 to the tube opening at the lower end of the left tube cavity of the gastric tube 1;

[0027] One end of the second guide wire 7 is located at the tube opening at the lower end of the right tube cavity and is fixed with a pH monitoring probe 6 for detecting the pH value of gastric fluid. The other end passes through the tube cap 14 through the through hole on the right and is fixed with a pH monitor 11 electrically connected to the pH monitoring probe 6. In this embodiment, the pH value of the patient's gastric fluid is monitored by the pH monitoring probe 6 and the pH monitor 11. When the gastric tube 1 slips and causes the end of the gastric tube 1 with the pH monitoring probe 6 to be separated from the gastric fluid, or when the patient's gastric condition changes and causes the pH of the gastric fluid to change significantly, medical personnel can be promptly notified.

[0028] The sealing block 9 on the right side is provided with a sleeve rod 8 which is in sliding sealing cooperation with the sealing block 9. The sleeve rod 8 is sleeved on the second guide wire 7. Figure 1 、 Figure 3 and Figure 4 As shown, in this embodiment, the position of the pH monitoring probe 6 is adjusted by moving the sleeve rod 8 up and down, so that the pH monitoring probe 6 can fully contact the gastric fluid, thereby preventing the pH monitoring probe 6 from not contacting the gastric fluid when the gastric tube 1 does not slip and the patient has little gastric fluid, thereby triggering the alarm of the pH monitor 11; the sliding seal described in this embodiment is similar to the cooperation between the piston and the empty barrel in a syringe;

[0029] In this embodiment, the pH monitor 11 is composed of a shell, a microprocessor, a display screen, buttons, a speaker and a battery. The first guide wire 2 and the second guide wire 7 are both hollow structures, and are provided with signal transmission lines inside. The camera 5 is communicated with the external imager through the signal transmission line inside the first guide wire 2, and the pH monitoring probe 6 is communicated with the microprocessor through the signal transmission line inside the second guide wire 7. The microprocessor is provided with a maximum value and a minimum value. When the pH value of the substance detected by the pH monitoring probe 6 is out of the range or no result is detected, the microprocessor will start the speaker to sound an alarm.

[0030] When using this embodiment, first remove the sealing block 9 at the left end of the tube cap 14, then insert the first guide wire 2 with the camera 5 and the second guide wire 7 with the pH monitoring probe 6 from the left and right ends of the tube cap 14 respectively until the tube opening at the lower end of the gastric tube 1, then while checking the image taken by the camera 5, insert the lower end of the gastric tube 1 into the patient's tail. During this process, if the image shows that the gastric tube 1 is inserted into the trachea, retreat and reinsert it, then move the sleeve rod 8 to make the pH monitoring probe 6 penetrate into the gastric fluid, then withdraw the first guide wire 2 and buckle the sealing block 9 at the left end of the tube cap 14, finally connect the negative pressure bottle or buckle the sealing plug 12.

[0031] Example 2

[0032] This embodiment further illustrates the technology. A limiting plate 10 is fixed on the top of the sealing block 9. The limiting plate 10 is semicircular and has a circular hole concentric with the corresponding through hole. The maximum outer diameter of the pipe cap 14 is smaller than the diameter of the limiting plate 10. Figure 1 、 Figure 3 and Figure 4 As shown, in this embodiment, the limiting plate 10 makes it easy for medical personnel to snap the sealing block 9 into the tube cap 14 or remove the sealing block 9 from the tube cap 14, while preventing the sealing block 9 from being inserted too deeply into the tube cap 14 and being difficult to remove.

Claims

1. A gastric tube for preventing mis-insertion, comprising a gastric tube (1), the top of which is connected with a tube cap (14), characterized in that: A partition (3) is fixed inside the gastric tube (1) for separating the gastric tube (1) into two independent left and right tube cavities. Two sealing blocks (9) are fastened inside the upper end of the tube cap (14) and are distributed on the left and right sides and are used to seal the tube cap (14) together. Both sealing blocks (9) are provided with through holes that communicate with each other from top to bottom. A first guide wire (2) and a second guide wire (7) are respectively arranged in the left tube cavity and the right tube cavity. One end of the first guide wire (2) is located at the tube opening at the lower end of the left tube cavity and is fixed with a guide wire for photographing the insertion of the gastric tube (1). The camera assembly of the screen during the process, the other end of which passes through the tube cap (14) through the through hole on the left; one end of the second guide wire (7) is located at the tube mouth at the lower end of the right tube cavity and is fixed with a pH monitoring probe (6) for detecting the acidity and alkalinity of gastric juice, the other end of which passes through the tube cap (14) through the through hole on the right and is fixed with a pH monitor (11) electrically connected to the pH monitoring probe (6), and the right sealing block (9) is equipped with a sleeve rod (8) that is in sliding sealing cooperation with it, and the sleeve rod (8) is sleeved on the second guide wire (7).

2. The anti-misinsertion gastric tube according to claim 1, characterized in that: The diameter of the lower end of the tube cap (14) is smaller than that of the upper end, the top of the gastric tube (1) is fixed to the bottom of the tube cap (14), and the diameter of the lower end of the tube cap (14) is equal to the inner diameter of the gastric tube (1).

3. The anti-misinsertion gastric tube according to claim 2, characterized in that: The partition (3) extends upward into the tube cap (14) and divides the interior of the tube cap (14) into two independent left and right areas.

4. The gastric tube according to claim 3, characterized in that: A limiting plate (10) is fixed on the top of the sealing block (9); the limiting plate (10) is semicircular and has a circular hole concentric with the corresponding through hole; the maximum outer diameter of the pipe cap (14) is smaller than the diameter of the limiting plate (10).

5. The gastric tube for preventing misinsertion according to claim 1 or 2, characterized in that: The camera assembly comprises a wire guide head (4), a mounting groove is provided at the bottom of the wire guide head (4), and a camera (5) is fixed in the mounting groove.

6. The gastric tube according to claim 5, characterized in that: The pH monitor (11) consists of a housing, a microprocessor, a display screen, buttons, a speaker and a battery.

7. The gastric tube according to claim 6, characterized in that: The first guide wire (2) and the second guide wire (7) are both hollow structures, and are each provided with a signal transmission line.

8. The anti-misinsertion gastric tube according to claim 2, characterized in that: A connecting belt (13) with one end fixed thereto is provided on the left side of the pipe cap (14), and a sealing plug (12) for sealing the through hole on the sealing block (9) on the left side is fixed to the other end of the connecting belt (13).

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