Special built-in tube with stomach accurate filling and jejunum nutrition functions for esophageal cancer radiotherapy

Abstract

The utility model discloses a special built-in tube with accurate stomach filling and jejunum nutrition functions for esophageal cancer radiotherapy, which comprises a support tube, an extension tube is fixedly mounted in the support tube, an inflation component and an expansion component are respectively arranged inside and outside the extension tube, and the expansion component is communicated with the inflation component; the inflation assembly comprises an inflation tube, an inflation port and a first sealing plug, the inflation tube is fixedly installed in the supporting tube, and the inflation port is fixedly installed at the top end of the inflation tube. Then an inflation instrument inflates the inflation tube through the inflation port, after gas enters the annular inflation bag through the inflation tube, the annular inflation bag expands in the stomach of the patient, the annular inflation bag is tightly attached to the stomach wall of the patient by means of the size of the annular inflation bag, and therefore infusion is more stable when the first catheter and the second catheter are subsequently used for infusion; and subsequent multi-time adjustment by workers is not needed.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an internal tube specifically designed for esophageal cancer radiotherapy that precisely fills the stomach and provides jejunal nutrition. Background Technology

[0002] Esophageal cancer is one of the most common malignant tumors of the digestive tract, ranking as the 7th most common malignant tumor worldwide. Most patients with perigastric and abdominal lymph node metastases experience food obstruction. To ensure the patient's access to and accuracy of radiotherapy, adequate enteral nutrition is necessary during the approximately two-month radiotherapy process. Precise localization is crucial before radiotherapy for esophageal cancer to guarantee treatment accuracy. During CT and MRI localization of tumors and lymph nodes in the lower esophagus, and in each subsequent treatment session, the stomach must be filled to the same volume to maintain consistency in stomach shape and position between fractionated radiotherapy sessions. This ensures the repeatability of the relative positions of the tumor and lymph nodes, guaranteeing precise treatment.

[0003] Existing feeding tubes for esophageal cancer radiotherapy are inserted into the patient's stomach or jejunum through the nasal cavity for nutritional supplementation. However, due to the lack of restraint on the feeding tube, it can shift or even bend due to gastric peristalsis, leading to obstruction or slowed flow. This necessitates repeated readjustment of the feeding tube by staff, which is time-consuming, labor-intensive, and increases their workload. To address these issues, we propose an internal feeding tube specifically designed for esophageal cancer radiotherapy that precisely fills the stomach and provides jejunal nutrition. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Therefore, the purpose of this utility model is to provide an internal feeding tube specifically designed for esophageal cancer radiotherapy that precisely fills the stomach and provides jejunal nutrition. This solves the problem of existing feeding tubes used in esophageal cancer radiotherapy, which are inserted into the patient's stomach or jejunum through the nasal cavity for nutritional supplementation. However, due to the lack of restraint on the feeding tube, the tube may shift or even bend due to stomach peristalsis, leading to obstruction or slowed flow. This results in the need for staff to readjust the position of the feeding tube multiple times, which is time-consuming, labor-intensive, and increases the burden on staff.

[0006] To solve the above-mentioned technical problems, this utility model provides an internal tube for esophageal cancer radiotherapy that precisely fills the stomach and provides jejunal nutrition. The technical solution is as follows: it includes a support tube, and the support tube is provided with an inflation component and an expansion component inside and outside, respectively. The expansion component is connected to the inflation component.

[0007] The inflation assembly includes an inflation tube, an inflation port, and a first sealing plug. The inflation tube is fixedly installed inside the support tube, and an inflation port is fixedly installed at the top of the inflation tube. The top of the inflation port is fixedly connected to the first sealing plug via a first connecting strap. The first sealing plug is adapted to one end of the inflation port.

[0008] The expansion assembly includes a medical annular inflatable bladder, which is fixedly installed outside the bottom end of the inflation tube, and the inner cavity of the medical annular inflatable bladder is connected to the inside of the inflation tube.

[0009] Optionally, an extension tube is fixedly installed inside the support tube, and a first conduit and a second conduit are symmetrically fixedly installed on the left and right sides of the extension tube, respectively, and length marking lines are provided on the outside of the extension tube and the second conduit in the direction of the extension tube.

[0010] Optionally, each of the first conduits is equipped with a check valve.

[0011] Optionally, a manual adjustment valve is provided inside the second conduit.

[0012] Optionally, both ends of the first and second catheters are open.

[0013] Optionally, a second sealing plug is fixedly connected to the outer tip of both the first and second catheters via a second connecting strap, and the second sealing plug is adapted to the opening at the tip of the first and second catheters.

[0014] In summary, this utility model has at least one of the following beneficial effects: 1. By setting up an inflation component and an expansion component, after the staff inserts the extension tube into the patient's stomach, the staff then inflates the inflation device into the inflation tube through the inflation port. After the gas enters the annular inflation balloon through the inflation tube, the annular inflation balloon expands in the patient's stomach. The volume of the annular inflation balloon is used to fit tightly against the patient's stomach wall, thereby making the subsequent infusion of the first and second catheters more stable and eliminating the need for staff to make multiple adjustments later.

[0015] 2. By setting up an extension tube, staff can accurately insert the extension tube into the patient's stomach by aligning it with the scale line on the outside of the extension tube. By setting up a first catheter and a second catheter, gastric emptying and nutritional supplementation can be carried out on the patient's stomach and jejunum respectively, improving work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic internal cross-sectional view of the overall structure of this utility model;

[0019] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 For the present utility model Figure 2 Enlarged diagram of point B in the middle.

[0021] Explanation of reference numerals in the attached drawings: 1. Support tube; 2. Extension tube; 3. Inflation tube; 4. Inflation port; 5. First sealing plug; 6. Medical ring-shaped inflatable bag; 7. First catheter; 8. Second catheter; 9. Length marking line; 10. Check valve; 11. Manual adjustment valve; 12. First connecting band; 13. Second connecting band; 14. Second sealing plug. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0023] Example 1, refer to Figure 1-4 In this embodiment, to address the problem of existing feeding tubes used in esophageal cancer radiotherapy, which are inserted into the patient's stomach or jejunum through the nasal cavity for nutritional supplementation, the lack of precise positioning of the feeding tube means that it can shift or even bend due to gastric peristalsis, leading to obstruction or reduced flow rate. This necessitates repeated readjustment of the feeding tube by staff, which is time-consuming, labor-intensive, and increases the burden on staff. Therefore, this invention discloses an internal feeding tube specifically designed for esophageal cancer radiotherapy that precisely fills the stomach and provides jejunal nutrition.

[0024] It includes a support tube 1, an extension tube 2 is fixedly installed inside the support tube 1, and an inflation component and an expansion component are respectively provided inside and outside the extension tube 2, with the expansion component connected to the inflation component.

[0025] The inflation assembly includes an inflation tube 3, an inflation port 4, and a first sealing plug 5. The inflation tube 3 is fixedly installed inside the support tube 1, and the inflation port 4 is fixedly installed at the top of the inflation tube 3. The first sealing plug 5 is fixedly connected to the top of the inflation port 4 through a first connecting strap 12. The first sealing plug 5 is adapted to one end of the inflation port 4.

[0026] The expansion assembly includes a medical annular airbag 6, which is fixedly installed outside the bottom end of the extension tube 2, and the inner cavity of the medical annular airbag 6 is connected to the inside of the inflation tube 3.

[0027] The specific working principle is as follows: First, after the staff inserts the extension tube 2 into the patient's stomach, the staff then inflates the inflation device into the inflation tube 3 through the inflation port 4. After the gas enters the annular inflation balloon through the inflation tube 3, the annular inflation balloon expands in the patient's stomach. The volume of the annular inflation balloon is used to fit tightly against the patient's stomach wall, which makes the subsequent infusion of the first catheter 7 and the second catheter 8 more stable and eliminates the need for staff to make multiple adjustments, making the operation more convenient.

[0028] Example 2, refer to Figure 1-4 Based on the same concept as in Embodiment 1 above, this built-in tube for esophageal cancer radiotherapy, which precisely fills the stomach and provides jejunal nutrition, also includes:

[0029] The extension tube 2 has a first conduit 7 fixedly installed symmetrically on the left and right sides and a second conduit 8 slidably installed on the side, and length marking lines 9 are provided on the outside of the extension tube 2 and the second conduit 8 in the direction of the extension tube.

[0030] The length marking line 9 makes it easier for staff to insert the extension tube 2 into the patient's stomach according to its length.

[0031] Each of the first conduits 7 is equipped with a check valve 10;

[0032] The check valve 10 is used to prevent the patient's gastric juice from flowing back through the first catheter 7, the end of which is located in the patient's stomach and is used to empty the gastric juice.

[0033] The second conduit 8 is equipped with a manual adjustment valve 11;

[0034] The second catheter 8 is located at the end of the patient's jejunum and is used to provide nutritional support (infusion of nutrient solution). The jejunum requires a deeper feeding tube, and the second catheter 8 can slide independently to the jejunum.

[0035] Both ends of the first catheter 7 and the second catheter 8 are open.

[0036] The top ends of the first conduit 7 and the second conduit 8 are both fixedly connected to a second sealing plug 14 by a second connecting band 13. The second sealing plug 14 is adapted to the opening at the top end of the first conduit 7 and the second conduit 8.

[0037] The second sealing plug 14 is used to seal the openings of the first conduit 7 and the second conduit 8.

[0038] The specific working principle is as follows: First, the staff aligns the extension tube 2 with the scale line on the outside of the extension tube 2 and inserts the extension tube 2 into the patient's stomach precisely. By setting the first catheter 7 and the second catheter 8, the patient can be given gastric nutrition and gastric emptying can be performed using the first catheter 7 and the second catheter 8 respectively.

[0039] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An internal tube for esophageal cancer radiotherapy, specifically designed for precise gastric filling and jejunal nutrition, comprising a support tube (1), characterized in that: An extension tube (2) is fixedly installed inside the support tube (1). An inflation component and an expansion component are respectively provided inside and outside the extension tube (2). The expansion component is connected to the inflation component. The inflation assembly includes an inflation tube (3), an inflation port (4), and a first sealing plug (5). The inflation tube (3) is fixedly installed inside the support tube (1), and the inflation port (4) is fixedly installed at the top of the inflation tube (3). The first sealing plug (5) is fixedly connected to the top of the inflation port (4) through a first connecting strap (12). The first sealing plug (5) is adapted to one end of the inflation port (4). The expansion assembly includes a medical annular airbag (6), which is fixedly disposed outside the bottom end of the extension tube (2), and the inner cavity of the medical annular airbag (6) is connected to the inside of the inflation tube (3). The extension tube (2) is symmetrically fixedly installed with a first conduit (7) and a second conduit (8) is slidably installed inside it, and a length marking line (9) is provided on the outside of the extension tube (2) and the second conduit (8) in the direction of the extension tube.

2. The internal tube for precise gastric filling and jejunal nutrition in esophageal cancer radiotherapy as described in claim 1, characterized in that: Each of the first conduits (7) is equipped with a check valve (10).

3. The internal tube for precise gastric filling and jejunal nutrition in esophageal cancer radiotherapy as described in claim 2, characterized in that: The second conduit (8) is equipped with a manual adjustment valve (11).

4. The internal tube for precise gastric filling and jejunal nutrition in esophageal cancer radiotherapy as described in claim 3, characterized in that: Both ends of the first catheter (7) and the second catheter (8) are open.

5. The internal tube for precise gastric filling and jejunal nutrition in esophageal cancer radiotherapy as described in claim 4, characterized in that: The first conduit (7) and the second conduit (8) are both fixedly connected to a second sealing plug (14) by a second connecting band (13). The second sealing plug (14) is adapted to the opening at the top of the first conduit (7) and the second conduit (8).

Images