Nasal-intestinal multifunctional nutrient canal capable of being positioned on body surface

Abstract

The utility model discloses a nose-intestine multifunctional nutrient canal capable of body surface positioning, which relates to the field of medical instruments and comprises an intubation tube, a light-emitting device and a cable, and the intubation tube is provided with a first pipeline, a second pipeline and a third pipeline. Wherein the third pipeline is used for installing a light-emitting device and a cable, and body surface positioning is facilitated; a lower port of the first pipeline is formed in the lower end of the cannula and is used for conveying liquid food into the duodenum; the lower port of the second pipeline is formed in the middle of the cannula and is used for extracting food in the stomach outwards. The portable medical intubation tube is good in portability, body surface positioning is carried out on the position and the moving track of the lower end of the intubation tube through the light-emitting device carried by the intubation tube, other high-end auxiliary equipment is not needed, and the portable medical intubation tube can be popularized and used in various hospitals, health centers and clinics. In addition, the device is wide in applicable crowd range, does not need anesthesia, does not need specific instruments and equipment, has low requirements on patients, is non-invasive in operation, has no operation contraindication, and can be repeatedly operated.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically a naso-intestinal multifunctional feeding tube that can be positioned on the body surface. Background Technology

[0002] Nutrition plays a crucial role in comprehensive cancer treatment, influencing not only the efficacy of radiotherapy and chemotherapy but also closely related to the prognosis of cancer patients. Gastrointestinal tumors often cause gastric retention due to gastric dysfunction, which in turn affects routine nutrient intake. Nasojejunal nutrition is the most reliable, safe, and effective method of nutrient intake.

[0003] There are two common methods for inserting jejunal feeding tubes: percutaneous endoscopic gastrostomy with jejunal tube insertion and nasojejunal tube insertion. However, neither method is suitable for cancer patients, especially those with moderate to severe malnutrition. The former requires highly skilled patients, necessitates anesthesia, and is expensive; the latter requires interventional radiology evaluation, involves significant radiation exposure during the procedure, requires multidisciplinary collaboration, is cumbersome, has high requirements for the patient's general condition, is expensive, and increases hospital stay. Some critically ill cancer patients and those with contraindications to surgical anesthesia lose the opportunity for nasojejunal tube insertion because they cannot be anesthetized.

[0004] In addition, there is a large clinical demand for simple and effective nasojejunal tube placement. In addition to cancer patients, patients in the gastroenterology department with linitis leather and patients in the neurology department with cerebral palsy also need jejunal nutrition to meet the body's energy needs.

[0005] Therefore, it is necessary to design a new type of feeding tube with body surface positioning function, which can be completed by hand at the bedside, is convenient, and has promotional value. Summary of the Invention

[0006] The purpose of this invention is to provide a naso-intestinal multifunctional feeding tube that can be positioned on the body surface, in order to overcome the problems existing in the prior art.

[0007] To achieve this objective, the present invention provides the following technical solution:

[0008] A naso-intestinal multifunctional feeding tube that can be positioned on the body surface includes a cannula, a light-emitting device, and a cable. The cannula has a first channel, a second channel, and a third channel. The light-emitting device is embedded in the lower end of the cannula. The cable is installed inside the third channel, with its lower end electrically connected to the light-emitting device and its upper end extending out from the upper end of the cable. The lower port of the first channel is located at the lower end of the cannula, and the lower port of the second channel is located in the middle of the cannula. After the lower end of the cannula is inserted into the human body through the esophagus, the lower port of the second channel is located inside the stomach, and the lower port of the first channel and the light-emitting device are located inside the duodenum.

[0009] Furthermore, it also includes a first connecting pipe and a second connecting pipe, one end of the first connecting pipe being inserted into the upper end of the first pipe, and one end of the second connecting pipe being inserted into the upper end of the second pipe.

[0010] Furthermore, after the aforementioned cannula is straightened, the distance from the lower port to the lower port of the first pipe is 40mm to 50mm.

[0011] Furthermore, the length of the aforementioned cannula is 110mm to 130mm.

[0012] Furthermore, the aforementioned cannula is equipped with graduations to measure its length.

[0013] Furthermore, the first, second, and third pipes mentioned above are arranged in a triangular pattern.

[0014] Furthermore, the lower end sidewall of the aforementioned insertion tube is provided with an annular mounting groove, and the aforementioned light-emitting device is embedded in the annular mounting groove.

[0015] Furthermore, the aforementioned cannula includes a cannula body and an outer sheath covering the outer surface of the cannula body.

[0016] Furthermore, the cannula body is made of polyurethane, and the outer layer is made of silicone.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] Firstly, this utility model is highly portable. It uses a light-emitting device carried by the cannula to locate the position and movement trajectory of the lower end of the cannula on the body surface, without the need for other high-end auxiliary equipment. It can be widely used in major hospitals, health centers, and clinics.

[0019] Secondly, this utility model has a wide range of applicable populations, does not require anesthesia or specific instruments and equipment, has low requirements for patients, is a non-invasive operation with no contraindications, and can be repeated. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the present invention. It includes cross-sectional schematic diagrams of the cannula at five points: AA, BB, CC, DD, and EE, as well as a partially enlarged schematic diagram of one point.

[0021] Figure 2 This is a schematic diagram of the usage state of this utility model. Detailed Implementation

[0022] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Many details are described below to provide a comprehensive understanding of this utility model; however, those skilled in the art can implement this utility model without these details.

[0023] like Figure 1 As shown, a nasoenteric multifunctional feeding tube that can be positioned on the body surface includes a first connecting tube 1 and a second connecting tube 2, a cable 3, an insertion tube 4, and a light-emitting device 5. The light-emitting device 5 is used to emit visible light, including but not limited to red light. Furthermore, the cable 3 and the light-emitting device 5 are existing technologies; those skilled in the art can select existing products and implement them as needed, and their specific structures will not be described in detail here.

[0024] like Figure 1 As shown, the material and diameter of the intubation tube 4 can also refer to existing intubation tubes. In one specific embodiment, the intubation tube 4 includes an intubation tube body 41 and an outer sheath 42 wrapped around the outer surface of the intubation tube body 41. Preferably, the intubation tube body 41 is made of polyurethane, which has good elasticity and durability, and the outer sheath 42 is made of silicone, which has good elasticity and less irritation to the nasal cavity and esophageal mucosa, providing greater comfort to the patient during intubation.

[0025] like Figure 1 and 2 As shown, in order to ensure that the intubation tube 4 can reach the duodenum a3 of the human body, the length of the intubation tube 4 is 110mm to 130mm. Preferably, the length of the intubation tube 4 is 110mm.

[0026] like Figure 1 As shown, the surface of the cannula 4 is provided with scale lines to measure its length, mainly to facilitate medical staff to observe the length of the cannula 4 inserted into the human body. Preferably, the starting point of the scale lines is at the lower end of the cannula 4.

[0027] like Figure 1 As shown, the cannula 4 is provided with a first conduit 401, a second conduit 402, and a third conduit 403. Preferably, the first conduit 401, the second conduit 402, and the third conduit 403 are arranged in a triangular pattern.

[0028] like Figure 1 As shown, the light-emitting device 5 is embedded in the lower end of the insertion tube 4. The cable 3 is installed inside the third pipe 403, and the lower end of the cable 3 is electrically connected to the light-emitting device 5. The upper end of the cable 3 extends out from the upper end of the cable 3, which facilitates the connection of the light-emitting device 5 to external devices for power supply, and also facilitates the adjustment of the brightness of the light-emitting device 5 from the outside, so that the visible light of the light-emitting device 5 can form an easily noticeable light spot on the outer side of the body surface.

[0029] like Figure 1 As shown, preferably, the lower end sidewall of the insertion tube 4 is provided with an annular groove 404, and the light-emitting device 5 is an annular lamp, which is fixedly embedded in the annular groove 404. Of course, the lower end of the first pipe 403 should lead to the annular mounting groove 404 so that the lower end of the cable 3 can be electrically connected to the light-emitting device 5.

[0030] like Figure 1 and 2 As shown, the lower port of the first conduit 401 is located at the lower end of the insertion tube 5, and is used to deliver liquid food into the duodenum a3. Preferably, the lower end of the insertion tube 5 is a convex spherical shape, which provides greater comfort to the patient during insertion.

[0031] like Figure 1 and 2 As shown, one end of the first connecting tube 1 is inserted into the upper end of the first pipe 401, and the other end is connected to a food bag or other device (not shown in the figure) that provides liquid food. Preferably, the upper end of the first pipe 401 is provided with a first connector tube 4011 for inserting the first connecting tube 1.

[0032] like Figure 1 and 2 As shown, the lower port 4022 of the second tube 402 is located in the middle of the insertion tube 5 and is used to extract food from the stomach body a2. Preferably, after the insertion tube 4 is straightened, the distance from the lower port 4022 to the lower port of the first tube 401 is 40mm to 50mm, preferably 40mm.

[0033] like Figure 1 and 2 As shown, one end of the second connecting pipe 2 is inserted into the upper end of the second pipe 402, and the other end is connected to a pump or other device (not shown in the figure) capable of generating negative pressure. Preferably, the upper end of the second pipe 402 is provided with a second connector pipe 4021 for inserting the second connecting pipe 2.

[0034] like Figure 1 and 2 As shown, the method of using this utility model is as follows:

[0035] (1) After the present invention is connected, the lower end of the intubation tube 4 is inserted into the patient's body through the esophagus a1 via nasojejunal tube insertion, and the light-emitting device 5 is lit. At the same time, the medical staff observe the position and movement trajectory of the light spot of the light-emitting device 5 on the patient's body surface, and locate the lower end of the intubation tube 4 on the body surface to ensure that the lower port of the first tube 401 enters the interior of the duodenum a3.

[0036] The principle is as follows: because the stomach body a2 is curved and has a relatively large space, the light spot of the light-emitting device 5 (i.e., the lower end of the intubation tube 4) moves mainly in a rightward, curved-forward motion within the stomach body a2, and may be accompanied by circling during this forward motion. Since the duodenum a3 is located at the end of the stomach body a2, extends downward, and has a narrower space, the light spot of the light-emitting device 5 (i.e., the lower end of the intubation tube 4) moves downward and forward within the duodenum a3. It is evident that due to the different physiological structures of the stomach body a2 and the duodenum a3, the characteristics of the movement trajectory of the light spot of the light-emitting device 5 (i.e., the lower end of the intubation tube 4) differ significantly between the two. Therefore, medical personnel observe the position and movement trajectory characteristics of the light spot of the light-emitting device 5 on the patient's body surface to locate the lower end of the intubation tube 4 on the body surface, ensuring that the lower port of the first conduit 401 enters the interior of the duodenum a3.

[0037] (2) When the lower port of the first tube 401 is located inside the duodenum a3, since the distance between the lower port 4022 of the second tube 402 and the lower port of the first tube 401 is 40mm to 50mm, the lower port of the first tube 401 is located inside the stomach body a2.

[0038] (3) If medical staff need treatment, they can deliver liquid food into the patient's duodenum a3 through the first tube 401, or extract food from the patient's stomach a2 through the second tube 402.

[0039] This is merely a specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model using this concept shall be considered as an infringement of the protection scope of the present utility model.

Claims

1. A naso-intestinal multifunctional feeding tube that can be positioned on the body surface, comprising a cannula (4), characterized in that: It also includes a cable (3) and a light-emitting device (5) for emitting visible light. The cannula (4) is provided with a first pipe (401), a second pipe (402) and a third pipe (403). The light-emitting device (5) is embedded in the lower end of the cannula (4). The cable (3) is installed inside the third pipe (403). The lower end of the cable (3) is electrically connected to the light-emitting device (5). The upper end of the cable (3) extends from the upper end of the cable (3). The lower port of the first pipe (401) is opened at the lower end of the cannula (4). The lower port (4022) of the second pipe (402) is opened in the middle of the cannula (4). After the lower end of the cannula (4) is inserted into the human body through the esophagus (a1), the lower port (4022) of the second pipe (402) is located inside the stomach (a2). The lower port of the first pipe (401) and the light-emitting device (5) are located inside the duodenum (a3).

2. The naso-intestinal multifunctional feeding tube that can be positioned on the body surface according to claim 1, characterized in that: It also includes a first connecting pipe (1) and a second connecting pipe (2), one end of the first connecting pipe (1) is inserted into the upper end of the first pipe (401), and one end of the second connecting pipe (2) is inserted into the upper end of the second pipe (402).

3. The naso-intestinal multifunctional feeding tube that can be positioned on the body surface according to claim 1, characterized in that: After the cannula (4) is straightened, the distance from the lower port (4022) to the lower port of the first pipe (401) is 40mm to 50mm.

4. A nasogastric multifunctional feeding tube that can be positioned on the body surface according to claim 1 or 3, characterized in that: The length of the cannula (4) is 110 mm to 130 mm.

5. A naso-intestinal multifunctional feeding tube that can be positioned on the body surface according to claim 4, characterized in that: The cannula (4) is provided with scale lines for measuring its length.

6. A naso-intestinal multifunctional feeding tube that can be positioned on the body surface according to claim 1, characterized in that: The first pipe (401), the second pipe (402), and the third pipe (403) are arranged in a triangular pattern.

7. A naso-intestinal multifunctional feeding tube that can be positioned on the body surface according to claim 1, characterized in that: The lower end sidewall of the insertion tube (4) is provided with an annular mounting groove (404), and the light-emitting device (5) is embedded in the annular mounting groove (404).

8. A naso-intestinal multifunctional feeding tube that can be positioned on the body surface according to claim 1, characterized in that: The cannula (4) includes a cannula body (41) and an outer sheath (42) wrapped around the outer surface of the cannula body (41).

9. A nasogastric multifunctional feeding tube that can be positioned on the body surface according to claim 8, characterized in that: The cannula body (41) is made of polyurethane, and the outer layer (42) is made of silicone.

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