Jejunum nutrient solution supply device
By using carbon dioxide gas in the jejunal nutrient tube to promote the nutrient solution and using the cross-section expansion technology of the main pipeline, the problems of slow entry of nutrient solution and blocked pipelines are solved, and the effect of reducing water intake and increasing flow rate is achieved.
Patent Information
- Application Number
- CN202510152630.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-05-02
AI Technical Summary
Because the jejunal nutrient tube has a long pipeline length, the nutrient solution enters slowly, and it is easy to cause pipeline blockage. The existing methods solve the blockage problem by flushing water, but it will increase the patient's water intake and affect the control of inlet and exit.
Carbon dioxide gas is used to push the nutrient solution remaining in the main line into the patient's jejunum or duodenum, reducing the use of water, and increasing the flow rate of the nutrient solution through the cross-section expansion of the main line.
It effectively reduces the amount of water injected into the patient's body, increases the flow rate of nutrient solution in the pipeline, and improves the control of inlet and out.
Smart Images
Figure CN119908963A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to a medical device, and more particularly to a jejunal nutrient solution supply device. Background Art
[0002] The jejunal feeding tube is inserted into the patient's body through the nose and directly enters the patient's duodenum or jejunum, so that food is directly supplied to the duodenum or jejunum without passing through the stomach.
[0003] Jejunal nutrition tubes are relatively thin because they are inserted through the nose. Due to the long length of the tube, the nutrient solution enters slowly, and when the syringe filled with nutrient solution reaches the end of its stroke, the nutrient solution retained in the tube can easily cause the tube to be blocked. In order to solve the problem of tube blockage, water is usually used to flush the tube after the nutrient solution is supplied. However, flushing the tube purely with water will cause too much water to enter the patient's body, which will increase the intake burden for patients who strictly limit the intake and output. Summary of the invention
[0004] In view of the above problems, the present application aims to provide a jejunal nutrient solution supply device, which can reduce the water used for flushing the tube. The present application also aims to provide a jejunal nutrient solution supply device, which can increase the speed of the nutrient solution in the pipeline.
[0005] The jejunal nutrient solution supply device of the present application includes a main circuit, a first end of the main circuit is used to be inserted through the nostrils of the subject to reach the jejunum or duodenum of the subject, the main circuit forms a side port for the outflow of nutrient solution on the side of the first end of the main circuit, and the second end of the main circuit includes a first joint and a second joint; the first joint can be detachably installed with a first syringe; the first syringe is used to contain nutrient solution, the first syringe is used to be installed on a first injection pump, and the first syringe is driven by the first injection pump so that the nutrient solution in the first syringe is injected into the main circuit; the second syringe is used to contain carbon dioxide gas, the second syringe is used to be installed on a second injection pump, and the second syringe is driven by the second injection pump so that the carbon dioxide in the second syringe is injected into the main circuit; the second injection pump drives the second syringe to work after the first injection pump drives the first syringe to complete the injection of nutrient solution, so as to push the nutrient solution remaining in the main circuit into the patient's jejunum or duodenum.
[0006] Preferably, the cross section of the first section of the main pipeline is a ring formed by undulating curves, and the first section of the main pipeline can expand outward in diameter when the injection force applied to the nutrient solution increases, thereby increasing the cross-sectional area of the first section of the main pipeline.
[0007] Preferably, it further comprises an auxiliary pipeline; The first end of the auxiliary pipeline is closed, and the second end is formed with a third joint, and the third joint is used to connect to a negative pressure source to form a negative pressure in the auxiliary pipeline; The auxiliary pipeline and the main pipeline are integrally connected together at least at the first end of the main pipeline; a through hole is formed at the connecting portion of the auxiliary pipeline and the main pipeline, and the through hole is covered by a waterproof breathable membrane; when the carbon dioxide in the second syringe is injected into the main pipeline and travels to the waterproof breathable membrane, it is sucked into the auxiliary pipeline by the negative pressure in the auxiliary pipeline.
[0008] Preferably, the waterproof breathable membrane is located upstream of the side opening of the main pipeline and is adjacent to the outlet of the main pipeline in the length direction of the main pipeline.
[0009] Preferably, the waterproof breathable membrane and the side opening of the main pipeline are located on opposite sides of the main pipeline.
[0010] Preferably, the second section of the main pipe is a round tube with a smooth outer circumference.
[0011] Preferably, the auxiliary pipeline is formed integrally with the main pipeline over its entire length.
[0012] Preferably, the main pipe is formed with a hemispherical plug at one end thereof.
[0013] Preferably, the first end of the auxiliary pipeline is formed with an inclined guide surface.
[0014] The jejunal nutrient solution supply device of the present application uses carbon dioxide to push the nutrient solution remaining in the main pipeline into the jejunum or duodenum of the subject, greatly reducing the water injected into the subject's body and making it easier to control the subject's intake and output; the jejunal nutrient solution supply device of the present application can increase the cross-sectional area of a section of the main pipeline, thereby increasing the flow rate of the nutrient solution in the main pipeline. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the jejunal nutrient solution supply device of the present application.
[0016] Figure 2 The top view structure of the jejunal nutrient solution supply device of the present application is shown as follows.
[0017] Figure 3 for Figure 1 Cross-sectional view of a jejunal nutrient solution supply apparatus.
[0018] Figure 4 for Figure 1 Schematic diagram of the internal structure of the first end of the jejunal nutrient solution supply device. DETAILED DESCRIPTION
[0019] Below, the jejunal nutrient solution supply device of the present application is described in detail with reference to the accompanying drawings.
[0020] The jejunal nutrient solution supply device of the present application comprises a main pipe 10, the first end of the main pipe 10 is used to be inserted through the nostril of the subject to reach the jejunum or duodenum of the subject, the main pipe 10 forms a side port 18 for the nutrient solution to flow out on the side of the first end, and the second end of the main pipe 10 comprises a first joint 11 and a second joint 12. The first joint 11 is detachably mounted with a first syringe 30; the first syringe 30 is used to contain the nutrient solution, and the first syringe 30 is used to be installed on a first injection pump (not shown in the figure), and the injection pump is a prior art and can be controlled by input parameters. The first syringe 30 is driven by the first injection pump, so that the nutrient solution in the first syringe 30 is injected into the main pipe 10. The second syringe 20 is used to contain carbon dioxide gas, and the second syringe 20 is used to be installed on a second injection pump (not shown in the figure), and the second syringe 20 is driven by the second injection pump, so that the carbon dioxide in the second syringe 20 is injected into the main pipe 10. The second injection pump drives the second syringe to work after the first injection pump drives the first syringe 30 to complete the injection of the nutrient solution, so as to push the nutrient solution remaining in the main line 10 into the jejunum or duodenum of the patient.
[0021] In one embodiment, the cross section of the first section 13 of the main pipeline 10 is a ring formed by undulating curves, such as Figure 3 As shown, the first section 13 of the main passage 10 can expand outward in diameter when the push force applied to the nutrient solution increases, thereby increasing the cross-sectional area of the first section 13 of the main passage. That is, when the first section 13 is inserted into the nostril of the subject, the cross-sectional area is small, which is convenient for insertion, and when the nutrient solution is injected, the cross-sectional area can be enlarged, so that the nutrient solution can be injected more quickly and smoothly.
[0022] In one embodiment, an auxiliary pipeline 14 is further included. Without the auxiliary pipeline 14, relatively more carbon dioxide gas will be pushed into the patient's body. Although carbon dioxide gas can be absorbed by the intestines, more carbon dioxide gas entering the patient's body will still cause abdominal distension in the patient. Therefore, in the present application, an auxiliary pipeline is further provided, and the carbon dioxide gas that travels to the vicinity of the side port 18 is sucked out as much as possible by using negative pressure to prevent it from entering the patient's intestines.
[0023] Specifically, the first end of the auxiliary pipeline 14 is closed, and the second end is formed with a third joint 15 , which is used to be connected to a negative pressure source to form negative pressure in the auxiliary pipeline 14 .
[0024] The auxiliary pipeline 14 is integrally connected with the main pipeline 10 at the first end of the main pipeline 10; a through hole 19a is formed at the connection portion 19 between the auxiliary pipeline 14 and the main pipeline 10, and the through hole 19a is covered by a waterproof breathable membrane, so that only carbon dioxide gas can enter the auxiliary pipeline 14, and the nutrient solution cannot pass through the membrane and cannot enter the auxiliary pipeline. Specifically, when the carbon dioxide in the second syringe 20 is injected into the main pipeline 10 and travels to the waterproof breathable membrane, it is sucked by the negative pressure in the auxiliary pipeline 14 and enters the auxiliary pipeline 14.
[0025] The waterproof breathable membrane is located upstream of the side opening 18 of the main line and is adjacent to the outlet of the main line in the length direction of the main line. This arrangement ensures that carbon dioxide gas enters the patient's jejunum or duodenum through the side opening 18 before being extracted.
[0026] The waterproof breathable membrane and the side opening 18 of the main pipe are located at opposite sides of the main pipe.
[0027] The second section of the main conduit 10 is a round tube with a smooth outer circumference. The second section is the part accommodated in the patient's nasal cavity, and the smooth surface reduces irritation to the nasal cavity.
[0028] In one embodiment, the auxiliary line 14 is formed integrally with the main line 10 along its entire length, and such a design facilitates the insertion of the main line and the auxiliary line into the subject's body together.
[0029] The main channel 10 is formed with a hemispherical plug 16 at one end. The plug 16 facilitates the insertion of a guide wire into the main channel, making it easier to insert the main channel into the patient's body. On the other hand, the hemispherical plug can make the insertion of the main channel smoother.
[0030] The first end of the auxiliary tube 14 is formed with an inclined guide surface 17, and the guide surface 17 is also for smoother insertion into the patient's body.
[0031] When in use, the main pipeline and auxiliary pipeline of the jejunal nutrient solution supply device of the present application are inserted into the subject's body together, reaching the position of the jejunum or duodenum; the first injection pump works first, drives the first syringe, pushes the nutrient solution in the first syringe into the main pipeline, and enters the first section along the main pipeline from the second section; at this time, the cross section or expansion of the first section becomes larger, so that the resistance to the entry of the viscous nutrient solution is smaller, and it is easier to enter the subject's body. After the first syringe completes the injection of the nutrient solution, there is still a lot of nutrient solution left in the main pipeline; at this time, the second injection pump is started, and the carbon dioxide gas is pushed into the main pipeline from the second syringe; when the carbon dioxide gas is pushed in the main pipeline, the residual nutrient solution in the main pipeline is continuously pushed out from the side port of the main pipeline; when the carbon dioxide gas pushed into the main pipeline reaches a predetermined amount, the nutrient solution remaining in the main pipeline is almost all pushed into the subject's body. In the process of pushing the carbon dioxide gas, the negative pressure source is started at the same time, and the carbon dioxide gas in the main pipeline is sucked at the through hole, so that when the carbon dioxide gas moves to the side port, it is sucked into the auxiliary pipeline through the waterproof breathable membrane to prevent too much carbon dioxide gas from entering the patient's body. A small amount of carbon dioxide gas that enters the patient's body can be absorbed by the patient's intestines and will not cause abdominal distension. In addition, an appropriate amount of clean water can be loaded into the first syringe, and after a small amount of clean water is injected into the main line, the second syringe can be restarted to use carbon dioxide gas to clean the main line with a small amount of clean water. In this way, the residual nutrient solution in the main line can be flushed more thoroughly without affecting the input and output.
[0032] The jejunal nutrient solution supply device of the present application utilizes carbon dioxide gas to flush residual nutrient solution in the main pipeline. Compared with the conventional method of completely utilizing water for pipeline flushing, it effectively reduces the additional amount of water injected into the patient and is more conducive to controlling the intake and output of the subject.
Claims
1. A jejunal nutrient solution supply device, which includes a main circuit, a first end of the main circuit is used to be inserted through the nostrils of the subject and reach the jejunum of the subject, the main circuit forms a side port for the outflow of nutrient solution on the side of the first end of the main circuit, and the second end of the main circuit includes a first joint and a second joint; the first joint can be detachably mounted with a first syringe; the first syringe is used to contain nutrient solution, the first syringe is used to be installed on a first injection pump, and the first syringe is driven by the first injection pump so that the nutrient solution in the first syringe is injected into the main circuit; the second syringe is used to contain carbon dioxide gas, the second syringe is used to be installed on a second injection pump, and the second syringe is driven by the second injection pump so that the carbon dioxide in the second syringe is injected into the main circuit; the second injection pump drives the second syringe to work after the first injection pump drives the first syringe to complete the injection of nutrient solution, so as to push the nutrient solution remaining in the main circuit into the patient's jejunum.
2. The jejunal nutrient solution supply device according to claim 1, characterized in that: The cross section of the first section of the main pipeline is a ring formed by undulating curves. The first section of the main pipeline can expand outward in diameter when the injection force applied to the nutrient solution increases, thereby increasing the cross-sectional area of the first section of the main pipeline.
3. The jejunal nutrient solution supply device according to claim 1, characterized in that further comprising an auxiliary pipeline; The first end of the auxiliary pipeline is closed, and the second end is formed with a third joint, and the third joint is used to connect to a negative pressure source to form a negative pressure in the auxiliary pipeline; The auxiliary pipeline and the main pipeline are integrally connected together at least at the first end of the main pipeline; a through hole is formed at the connecting portion of the auxiliary pipeline and the main pipeline, and the through hole is covered by a waterproof breathable membrane; when the carbon dioxide in the second syringe is injected into the main pipeline and travels to the waterproof breathable membrane, it is sucked into the auxiliary pipeline by the negative pressure in the auxiliary pipeline.
4. The jejunal nutrient solution supply device according to claim 3, characterized in that: The waterproof breathable membrane is located upstream of the side opening of the main pipeline and is closely adjacent to the outlet of the main pipeline in the length direction of the main pipeline.
5. The jejunal nutrient solution supply device according to claim 4, characterized in that: The waterproof breathable membrane and the side opening of the main pipeline are respectively located at the opposite sides of the main pipeline.
6. The jejunal nutrient solution supply device according to claim 2, characterized in that: The second section of the main pipeline is a round pipe with a smooth outer circumference.
7. The jejunal nutrient solution supply device according to claim 3, characterized in that: The auxiliary pipeline is formed integrally with the main pipeline throughout its entire length.
8. The jejunal nutrient solution supply device according to claim 1, characterized in that: The main pipe is formed with a hemispherical plug at one end.
9. The jejunal nutrient solution supply device according to claim 3, characterized in that: The first end of the auxiliary pipe is formed with an inclined guide surface.