Stomach tube capable of judging in-place insertion

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to a stomach tube capable of judging in-place insertion, which comprises a tube body, at least two leads arranged along the tube body in an embedded manner and a gastric soluble coating layer covering one end of the tube body, one end of each lead extends out of the end part of the tube body and is connected with external resistance detection equipment, and the other end of each lead is connected with the gastric soluble coating layer. The other end of each wire is exposed out of the end, entering the body, of the tube body, the tube body cannot be exposed through the esophagus wire through the gastric-soluble coating layer, when the gastric-soluble coating layer enters the stomach and makes contact with gastric juice, the gastric-soluble coating layer disintegrates rapidly, the ends of the two wires make contact with the gastric juice, and resistance detection equipment connected with the outer ends of the wires can immediately display that resistance becomes small rapidly; therefore, medical staff can easily judge whether the stomach tube is inserted in place or not, operation is easy, judgment is accurate, and adverse effects on the human body are not likely to be generated.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a gastric tube capable of judging insertion in place. Background Art

[0002] Insertion of a gastric tube is one of the common clinical operations, which is mostly used for gastrointestinal decompression to drain gastrointestinal contents, or to extract gastric juice for gastric juice examination, or to help patients who cannot swallow to deliver necessary water and food. Sometimes, it can also deliver medicinal liquids to ensure enteral nutrition and treatment effects for critically ill patients and help patients recover early. Gastric tubes are divided into oral gastric tubes and nasogastric tubes.

[0003] During the catheterization operation, accurately inserting the end of the gastric tube into the stomach requires medical staff to have relatively rich practical experience. Sometimes, the situation of failed catheterization due to improper insertion occurs, increasing the discomfort of patients and wasting medical consumables.

[0004] There are some existing gastric tubes that can judge insertion in place. They use a guide wire inserted in the middle of the gastric tube, with positive and negative electrodes set at the end of the guide wire. Using gastric juice as an electrolyte solution, an electrochemical reaction occurs to generate an electric current, which is detected, indicating that it has been inserted into the stomach. However, there are problems such as consumption of the positive electrode, partial dissolution in the stomach, and discharge, which may have adverse effects on the human body. In addition, the guide wire needs to be inserted into the gastric tube and then withdrawn, which is likely to bring out gastric juice, causing contamination, and the operation is relatively complex. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a gastric tube capable of judging insertion in place, which has simple operation, accurate judgment, and is not likely to have adverse effects on the human body.

[0006] The content of the utility model includes:

[0007] A tube body;

[0008] At least two wires are embedded along the tube body, one end of the wire extends out of the end of the tube body and is connected to an external resistance detection device, and the other end of the wire is exposed at the end of the tube body entering the body; and

[0009] A gastric-soluble coating layer covering the end of the tube body entering the body.

[0010] Optionally, the shape of the gastric-soluble coating layer is a bullet-shaped shell structure.

[0011] Optionally, the gastric-soluble coating layer is sleeved on the end of the tube body and has an interference fit.

[0012] Optionally, one end of the wire extending out of the tube body is connected with a plug.

[0013] Optionally, a socket is sleeved at one end of the tube body away from the gastric-soluble coating layer. Two counterbores are formed in the socket, and the plug connector is arranged in the counterbores.

[0014] Optionally, an enameled wire is connected to the end of the plug connector, and one end of the enameled wire is connected to a conducting wire.

[0015] Optionally, a conductor is embedded at the end of the tube body, and the conducting wire is connected to the conductor.

[0016] Optionally, the cross-sectional shape of the conductor is fan-shaped.

[0017] Optionally, a side branch pipe is arranged at a position of the tube body close to the end, and a sealing plug is arranged on the side branch pipe.

[0018] Optionally, a flexible band is connected to the sealing plug, and the other end of the flexible band is connected to the side branch pipe.

[0019] The beneficial effects of the utility model are as follows: through the gastric-soluble coating layer, the conducting wires will not be exposed when the tube body passes through the esophagus. When the gastric-soluble coating layer enters the stomach and contacts gastric juice, it will quickly disintegrate, so that the ends of the two conducting wires contact the gastric juice, and the resistance detection device connected to the outer end of the conducting wire will immediately show that the resistance rapidly decreases. At this time, it indicates that the gastric tube is inserted in place. In this way, medical staff can easily judge whether the gastric tube is inserted in place, and the operation is simple, the judgment is accurate, and it is not easy to cause adverse effects on the human body. In addition, the setting of the gastric-soluble coating layer makes the end size of the gastric tube compact and the surface smooth, which can reduce the discomfort of patients. At the same time, it can be inserted not only from the mouth but also from the nose. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the gastric tube provided by the utility model;

[0021] Figure 2 is a sectional view of the gastric tube provided by the utility model;

[0022] Figure 3 is Figure 2 the enlarged view of area A in

[0023] Figure 4 is Figure 2 the enlarged view of area B in

[0024] Figure 5 is a schematic structural diagram of the end of the tube body provided by the utility model.

[0025] In the figure: 10, tube body; 11, side branch pipe; 12, sealing plug; 13, flexible band; 20, conducting wire; 21, conductor; 30, gastric-soluble coating layer; 40, plug connector; 41, enameled wire; 50, socket; 51, counterbore. Detailed implementation mode

[0026] As shown Figures 1-5 in the figure, the utility model provides a gastric tube capable of judging the insertion in place, which includes: a tube body 10, at least two wires 20 embedded along the tube body 10, and a gastric-soluble coating layer 30 covering one end of the tube body 10 entering the body. One end of the wire 20 extends out of the end of the tube body 10 and is connected to an external resistance detection device, and the other end of the wire 20 is exposed at one end of the tube body 10 entering the body.

[0027] Compared with the prior art, for the gastric tube capable of judging the insertion in place provided by the utility model, the wire 20 will not be exposed when the tube body 10 passes through the esophagus through the gastric-soluble coating layer 30. When the gastric-soluble coating layer 30 enters the stomach and contacts the gastric juice, it will quickly disintegrate, so that the ends of the two wires 20 contact the gastric juice, and the resistance detection device connected to the outer ends of the wires 20 will immediately show that the resistance rapidly decreases. At this time, it indicates that the gastric tube is inserted in place. In this way, medical staff can easily judge whether the gastric tube is inserted in place, and the operation is simple, the judgment is accurate, and it is not easy to cause adverse effects on the human body. In addition, the setting of the gastric-soluble coating layer makes the end size of the gastric tube compact and the surface smooth, which can reduce the discomfort of the patient. At the same time, it can be inserted not only from the mouth but also from the nose.

[0028] It should be noted that the resistance detection device in this embodiment is a multimeter or a resistivity detector, which can be reused by connecting to the end of the wire 20 during use; the wire 20 is a stainless steel wire or a copper wire with a stainless steel wire connected to the end.

[0029] In this embodiment, the shape of the gastric-soluble coating layer 30 is a bullet-shaped shell structure.

[0030] Specifically, the gastric-soluble coating layer 30 is made of polyacrylic resin IV, and is made into the shape of half a capsule shell. During use, it is sleeved on the end of the tube body 10 to cover the ends of the wires 20 together.

[0031] In another embodiment, polyacrylic resin IV is dissolved in an organic solvent and sprayed on the end of the tube body 10 to form the gastric-soluble coating layer 30.

[0032] In this embodiment, the gastric-soluble coating layer 30 has shrinkability and is tightly fixed on the end of the tube body 10 by interference fit.

[0033] In this embodiment, please refer to Figure 4, one end of the wire 20 extending out of the tube body 10 is connected with a plug connector 40. Specifically, the contact head of the resistance detection device is generally of a plug-in type. The plug connector 40 is of a metal tubular structure. One end of the plug connector 40 is fixed to the wire 20 by soldering. The contact head of the resistance detection device is inserted into the plug connector 40, which facilitates the docking and separation of the resistance detection device and the wire 20 and improves the operation convenience.

[0034] In one embodiment, please refer to Figure 2 and Figure 4 , a socket 50 is sleeved on one end of the tube body 10 away from the gastric-soluble coating layer 30. The socket 50 is provided with two counterbores 51, and the plug connector 40 is arranged in the counterbores 51.

[0035] Specifically, the socket 50 is made of an insulating material and has a round hole inside for sleeving on one end of the tube body 10 away from the gastric-soluble coating layer 30. During production, first, the two plug connectors are respectively embedded and fixed in the two counterbores 51 on the socket, then the plug connectors are connected to the wire 20 by soldering, and then the socket 50 is sleeved on one end of the tube body 10, and it can be adhesively fixed to improve the connection firmness. In this way, when unplugging and plugging the contact head of the resistance detection device, the disconnection of the wire 20 and the plug connector can be avoided.

[0036] Furthermore, an enameled wire 41 is connected to the end of the plug connector 40, and one end of the enameled wire 41 is connected to the wire 20. Specifically, the length of the wire 20 extending out of the tube body 10 can be reduced, and the use of the enameled wire 41 can also avoid the short circuit between the two contacts.

[0037] In this embodiment, please refer to Figure 5 , a conductor 21 is embedded at the end of the tube body 10, and the wire 20 is connected to the conductor 21. Specifically, the conductor 21 is made of stainless steel or graphite, which can expand the contact surface with gastric juice, make the detected resistance smaller, and make the method for judging reaching the stomach more reliable.

[0038] In this embodiment, the cross-sectional shape of the conductor 21 is fan-shaped. Correspondingly, a fan-shaped groove is provided at the end of the tube body 10.

[0039] In this embodiment, a side branch pipe 11 is provided at a position of the tube body 10 close to the end. A closing plug 12 is provided on the side branch pipe 11. By opening the closing plug 12, water, food or medicine liquid can be fed in or gastric juice can be extracted from the side branch pipe 11.

[0040] Furthermore, a flexible band 13 is connected to the closing plug 12, and the other end of the flexible band 13 is connected to the side branch pipe 11, which can prevent the closing plug 12 from falling off. The flexible band 13 is made of PVC or polyurethane.

[0041] Those of ordinary skill in the art should understand that any discussion of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; under the concept of this application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of one or more embodiments of this application as described above, and they are not provided in detail for the sake of brevity.

[0042] One or more embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this application shall be included within the scope of protection of this application.

Claims

1. A gastric tube capable of judging insertion in place, characterized in that, Comprising: A tube body (10); At least two wires (20) are embedded along the tube body (10). One end of the wire (20) extends out of the end of the tube body (10) and is connected to an external resistance detection device, and the other end of the wire (20) is exposed at the end of the tube body (10) that enters the body; and A gastric-soluble coating layer (30) covering the end of the tube body (10) that enters the body.

2. The gastric tube capable of judging the insertion in place according to claim 1, characterized in that The gastric-soluble coating layer (30) is in the shape of a bullet-shaped shell structure.

3. The gastric tube capable of judging the insertion in place according to claim 2, characterized in that, The gastric-soluble coating layer (30) is sleeved on the end of the tube body (10) and has an interference fit.

4. The gastric tube capable of judging the insertion in place according to claim 1, characterized in that, One end of the wire (20) extending out of the tube body (10) is connected with a plug connector (40).

5. The gastric tube capable of judging the insertion in place according to claim 4, characterized in that, A socket (50) is sleeved on the end of the tube body (10) away from the gastric-soluble coating layer (30). The socket (50) is provided with two counterbores (51), and the plug connector (40) is arranged in the counterbores (51).

6. The gastric tube capable of judging insertion in place according to claim 4, characterized in that, The end of the plug connector (40) is connected with an enameled wire (41), and one end of the enameled wire (41) is connected with the wire (20).

7. The gastric tube capable of judging insertion in place according to claim 1, characterized in that, A conductor (21) is embedded at the end of the tube body (10), and the wire (20) is connected with the conductor (21).

8. The gastric tube capable of judging insertion in place according to claim 7, characterized in that, The cross-sectional shape of the conductor (21) is fan-shaped.

9. The gastric tube capable of judging insertion in place according to any one of claims 1-8, characterized in that, A side branch pipe (11) is arranged at a position of the tube body (10) close to the end, and a closing plug (12) is arranged on the side branch pipe (11).

10. The gastric tube capable of judging insertion in place according to claim 9, characterized in that, A flexible band (13) is connected to the closing plug (12), and the other end of the flexible band (13) is connected with the side branch pipe (11).

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