Visual anti-regurgitation gastric tube

Abstract

This invention discloses a visual anti-reflux gastric tube, relating to the field of medical device technology. The invention includes a gastric tube, one end of which is connected to a food storage container, and the other end is fixedly equipped with a camera and a light. Multiple valves are rotatably mounted on the end of the gastric tube near the camera, and torsion springs are arranged between the valves and the gastric tube. The gastric tube is slidably connected to a face mask, and a fixing plate is fixedly installed inside the face mask. One end of a compression spring is fixedly mounted on the fixing plate, and the other end of the compression spring is fixedly mounted on a rubber pad. The rubber pad supports the patient's mouth. A stirring mechanism is installed inside the food storage container to pulverize food. This invention uses elastic straps fixed to the face mask for easy and secure wearing near the patient's ears. The gastric tube is made of a soft material and slidably connected to the face mask. At the end near the patient's mouth, the rubber pad conforms to the patient's mouth under the action of the compression spring, providing comfortable support.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and specifically relates to a visual anti-reflux gastric tube. Background Technology

[0002] The visualized anti-reflux nasogastric tube, a groundbreaking innovation in the medical field, cleverly integrates two core functions: real-time image monitoring and anti-reflux. Utilizing advanced visualization technology, medical staff can precisely locate and clearly observe the tube's position during insertion, ensuring accurate operation. After insertion, the condition within the stomach can be dynamically monitored. Simultaneously, its unique structural and functional design effectively constructs an anti-reflux barrier, preventing the backflow of gastric contents. This innovative design significantly enhances the safety of nasogastric tube procedures, reduces the risk of complications, and provides patients with a more comfortable and reassuring treatment experience.

[0003] In the clinical care of critically ill patients, while existing visual anti-reflux nasogastric tubes have advantages such as preventing the backflow of gastric contents, they face challenges in practical use. Because most critically ill patients are severely ill, have declining bodily functions, and lack oral muscle strength, making it difficult for them to open their mouths independently, this makes nasogastric tube insertion extremely inconvenient for medical staff, increasing the difficulty and time cost of the procedure. This, in turn, affects the patient's timely feeding, hindering nutritional supplementation and recovery. Summary of the Invention

[0004] In response to the problems in related technologies, this invention proposes a visual anti-reflux gastric tube to overcome the aforementioned technical problems existing in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a visual anti-reflux gastric tube. This uniquely designed tube integrates multiple functions to provide patients with a safer and more comfortable feeding experience. It mainly consists of a tube body, one end of which is tightly connected to a food storage container to ensure smooth food delivery. The other end is fixedly equipped with a high-definition camera and a bright light, allowing medical staff to clearly observe the patient's stomach and ensure safe and accurate feeding. Furthermore, multiple valves are cleverly rotatably mounted on the end of the tube near the camera. These valves are connected to the tube by torsion springs, automatically opening during feeding and closing afterward to effectively prevent food reflux. Simultaneously, the tube is slidably connected to a specially designed mask. A fixing plate is fixedly installed inside the mask, and one end of a compression spring is fixedly mounted on the plate. The other end of the compression spring is fixedly mounted on a soft rubber pad, which conforms to the patient's mouth, providing comfortable support and reducing discomfort. The food storage container is also equipped with a high-efficiency stirring mechanism inside, which is used to finely pulverize the food to ensure that the food can be smoothly passed through the gastric tube into the patient's body.

[0006] Furthermore, the mask is secured with elastic straps, which are reasonably designed to fit easily around the patient's ears, ensuring the mask remains secure and doesn't fall off. Meanwhile, the gastric tube is made of soft and safe materials, ensuring patient comfort while preventing potential harm. Additionally, a control valve is installed between the gastric tube and the food storage container, allowing medical staff to precisely control the amount of food delivered.

[0007] Furthermore, the stirring mechanism includes a stirring rod rotatably mounted inside the food storage cylinder. This stirring rod is ingeniously designed to efficiently stir food. The output end of a drive motor is fixedly mounted at one end of the stirring rod, and the drive motor is fixedly mounted at the top of the food storage cylinder, providing stable and powerful power support to the stirring rod and ensuring that the food is thoroughly pulverized.

[0008] Furthermore, to ensure the purity of the food and prevent large food particles from clogging the gastric tube, a filter screen is fixedly installed inside the food storage container. Simultaneously, a cleaning brush is fixedly installed at the bottom of the stirring rod. This brush adheres to the surface of the filter screen and automatically cleans residue from the screen during stirring, keeping the filter screen unobstructed.

[0009] Furthermore, to facilitate thorough cleaning of the food storage container's interior, a cleaning ring is slidably connected inside. This cleaning ring fits snugly against the inner wall of the container, effectively scraping away any residue. Simultaneously, the cleaning ring is threadedly connected to a reciprocating threaded rod, which is rotatably mounted inside the container. Rotating the reciprocating threaded rod drives the cleaning ring to reciprocate within the container, achieving comprehensive cleaning.

[0010] Furthermore, to ensure stable rotation and automatic reset of the reciprocating threaded rod, a return spring is fixedly installed on one end of the reciprocating threaded rod. The other end of the return spring is fixedly installed on the pawl, and limit blocks are provided on both sides of the pawl. These limit blocks are fixedly installed on a rotating disk, which is rotatably mounted on the storage cylinder. This design allows the pawl to stably engage or disengage from the ratchet under the action of the limit blocks, achieving intermittent rotation of the reciprocating threaded rod.

[0011] Furthermore, the pawl engages with a ratchet, which is fixedly mounted on the first gear. The first gear is rotatably mounted on the food storage cylinder and is connected to the second gear via a gear belt drive. This transmission design allows the power of the drive motor to be transmitted through the first and second gears, ultimately driving the reciprocating threaded rod to rotate, thus realizing the reciprocating motion of the cleaning ring.

[0012] Furthermore, the second gear is also rotatably mounted on the food storage cylinder and fixedly connected to the output end of the drive motor to ensure stable power transmission. In addition, the food storage cylinder is also equipped with a feeding port, making it convenient for medical staff to add food into the storage cylinder and facilitating the feeding process.

[0013] Compared with the prior art, the present invention has the following advantages: 1. Multiple valves are installed at the end of the gastric tube closest to the camera. Torsion springs are installed between the valves and the gastric tube. When food is being transported normally, the valves open under pressure. When there is backflow, the torsion springs close the valves, effectively preventing food reflux. At the same time, a camera and a light are fixedly installed at the other end of the gastric tube. The light provides sufficient light so that medical staff can clearly observe the patient's stomach through the camera, providing accurate information for treatment and care.

[0014] 2. The food storage container is equipped with a stirring mechanism. The drive motor rotates the stirring rod to stir and crush the food. The cleaning brush installed at the bottom of the stirring rod can simultaneously clean the residue on the filter screen to prevent large food particles from clogging the gastric tube, ensuring the purity of the food and smooth delivery. Medical staff can precisely control the amount of food delivered through the control valve between the gastric tube and the food storage container. It is easy to operate and meets the needs of different patients.

[0015] 3. The mask is secured with elastic straps, allowing it to be easily worn around the patient's ears for a stable fit. The gastric tube, made of soft material, slides onto the mask. At the end closest to the patient's mouth, a rubber pad, aided by a compression spring, conforms to the patient's oral cavity, providing comfortable support. When cleaning the inside of the food storage container is required, the drive motor, through gear transmission and a ratchet and pawl mechanism, causes the reciprocating threaded rod to rotate intermittently, driving the cleaning ring to reciprocate within the container, thoroughly scraping away residue from the inner wall for comprehensive cleaning and ensuring hygiene and safety.

[0016] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the invention, 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 the invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an enlarged schematic diagram of point A in the present invention; Figure 3 This is a schematic diagram of the face mask of the present invention; Figure 4 This is a schematic diagram of the gastric tube of the present invention; Figure 5 This is a cross-sectional view of the food storage cylinder of the present invention; Figure 6 This is a top view of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: 1. Gastric tube; 2. Food storage container; 3. Camera; 4. Lighting lamp; 5. Valve; 6. Mask; 7. Fixing plate; 8. Compression spring; 9. Rubber pad; 10. Elastic strap; 11. Control valve; 12. Stirring rod; 13. Drive motor; 14. Filter screen; 15. Cleaning brush; 16. Cleaning ring; 17. Reciprocating threaded rod; 18. Return spring; 19. Pawl; 20. Limit block; 21. Rotating disk; 22. Ratchet; 23. First gear; 24. Gear belt; 25. Second gear; 26. Feed inlet. Detailed Implementation

[0020] The technical solutions of the embodiments of the invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the invention.

[0021] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the invention.

[0022] Please see Figures 1-6 As shown, this invention is a visual anti-reflux gastric tube. This gastric tube is ingeniously designed and fully functional, mainly comprising a gastric tube 1. One end of the gastric tube 1 is tightly connected to a food storage container 2 to ensure smooth food delivery; the other end is fixedly equipped with a camera 3 and a light 4, facilitating medical personnel to observe the patient's stomach condition. Multiple valves 5 are rotatably installed at the end of the gastric tube 1 near the camera 3, with torsion springs between the valves 5 and the gastric tube 1 to effectively prevent food reflux. Furthermore, the gastric tube 1 is slidably connected to a mask 6, inside which a fixing plate 7 is fixedly installed. One end of a compression spring 8 is fixedly installed on the fixing plate 7, and the other end of the compression spring 8 is fixedly installed on a rubber pad 9. The rubber pad 9 is used to conform to the patient's mouth, providing comfortable support. The food storage container 2 also has a stirring mechanism inside for finely pulverizing food.

[0023] The working principle of the visual anti-reflux gastric tube proposed in this invention is as follows: when using the visual anti-reflux gastric tube, food is first placed in the food storage cylinder 2, and the stirring mechanism inside the food storage cylinder 2 is activated to finely crush the food to make it suitable for delivery.

[0024] The mask 6 is placed on the patient's face, and the rubber pad 9 fits the patient's mouth. Under the action of the compression spring 8, the rubber pad 9 can provide comfortable support according to the patient's oral condition. At the same time, the gastric tube 1 is slidably connected to the mask 6 and can be adjusted to a suitable position.

[0025] Open the channel between the gastric tube 1 and the food storage container 2, and the pulverized food is delivered from the food storage container 2 through the gastric tube 1 into the patient's stomach.

[0026] During food delivery, the camera 3 and the light 4 fixedly installed at the other end of the gastric tube 1 are turned on. The light 4 provides sufficient light for the camera 3, so that medical staff can clearly observe the condition inside the patient's stomach and ensure that the food delivery process is normal.

[0027] When food is delivered to the end of the gastric tube 1 near the camera 3, multiple valves 5 are rotatably installed at this end, and torsion springs are installed between the valves 5 and the gastric tube 1. When food is being delivered forward normally, the valves 5 open under the pressure of the food, allowing the food to pass through. When backflow occurs, the elasticity of the torsion spring causes the valves 5 to close, preventing the food from flowing back into the gastric tube 1 and the food storage container 2, ensuring safety and hygiene.

[0028] In one embodiment, to ensure the mask 6 is securely worn on the patient's head, an elastic band 10 is fixedly installed on the mask 6. The elastic band 10 is reasonably designed and can be easily worn around the patient's ears. Meanwhile, the gastric tube 1 is made of soft and safe material, ensuring patient comfort while preventing injury. Furthermore, a control valve 11 is installed between the gastric tube 1 and the food storage container 2, allowing medical staff to precisely control the amount of food delivered.

[0029] In one embodiment, the stirring mechanism includes a stirring rod 12 rotatably mounted inside the food storage cylinder 2. The stirring rod 12 is ingeniously designed to efficiently stir food. One end of the stirring rod 12 is fixedly mounted with the output end of a drive motor 13, which is fixedly mounted on the top of the food storage cylinder 2, providing stable and powerful power support to the stirring rod 12 and ensuring that the food is thoroughly pulverized.

[0030] In one embodiment, a filter screen 14 is fixedly installed inside the food storage container 2, and a cleaning brush 15 is fixedly installed at the bottom of the stirring rod 12. The cleaning brush 15 and the surface of the filter screen 14 are in close contact. To ensure the purity of the food and prevent large food particles from clogging the gastric tube 1, the filter screen 14 is fixedly installed inside the food storage container 2. At the same time, a cleaning brush 15 is also fixedly installed at the bottom of the stirring rod 12. The cleaning brush 15 is in close contact with the surface of the filter screen 14, which can automatically clean the residue on the filter screen 14 during the stirring process, keeping the filter screen 14 unobstructed.

[0031] In one embodiment, for the aforementioned food storage container 2, a cleaning ring 16 is slidably connected inside the food storage container 2 to facilitate thorough cleaning. The cleaning ring 16 fits tightly against the inner wall of the food storage container 2, effectively scraping away residues on the inner wall. Simultaneously, the cleaning ring 16 is threadedly connected to a reciprocating threaded rod 17, which is rotatably installed inside the food storage container 2. Rotating the reciprocating threaded rod 17 drives the cleaning ring 16 to reciprocate within the food storage container 2, achieving comprehensive cleaning.

[0032] In one embodiment, for the reciprocating threaded rod 17, to ensure stable rotation and automatic reset of the reciprocating threaded rod 17, one end of a return spring 18 is fixedly installed on the reciprocating threaded rod 17. The other end of the return spring 18 is fixedly installed on a pawl 19. Limiting blocks 20 are provided on both sides of the pawl 19, and the limiting blocks 20 are fixedly installed on a rotating disk 21, which is rotatably installed on a food storage cylinder 2. This design allows the pawl 19 to stably engage or disengage from the ratchet 22 under the action of the limiting blocks 20, realizing intermittent rotation of the reciprocating threaded rod 17.

[0033] In one embodiment, the pawl 19 engages with a ratchet 22, which is fixedly mounted on a first gear 23. The first gear 23 is rotatably mounted on the food storage cylinder 2 and is connected to a second gear 25 via a gear belt 24. This transmission design allows the power of the drive motor 13 to be transmitted through the first gear 23 and the second gear 25, ultimately driving the reciprocating threaded rod 17 to rotate, thus realizing the reciprocating motion of the cleaning ring 16.

[0034] In one embodiment, the second gear 25 is also rotatably mounted on the food storage cylinder 2 and fixedly connected to the output end of the drive motor 13 to ensure stable power transmission. Furthermore, to facilitate medical personnel adding food to the food storage cylinder 2, the food storage cylinder 2 is also provided with a feeding inlet 26, greatly facilitating the feeding process.

[0035] The working principle of the visual anti-reflux nasogastric tube proposed in this invention is as follows: When using this visual anti-reflux nasogastric tube, food is first added into the food storage container 2 through the feed inlet 26. The drive motor 13, fixedly installed at the top of the food storage container 2, is then turned on. The drive motor 13 drives the stirring rod 12, which is fixedly connected to its output end, to rotate. The stirring rod 12 stirs and pulverizes the food in the food storage container 2. During the stirring process, the cleaning brush 15, fixedly installed at the bottom of the stirring rod 12, simultaneously cleans the residue on the filter screen 14, preventing large food particles from clogging the nasogastric tube 1 and ensuring the purity and smooth delivery of the food.

[0036] Medical staff place the mask 6 on the patient's head. The elastic straps 10 fixedly installed on the mask 6 can be easily worn around the patient's ears, ensuring that the mask 6 is securely worn. The gastric tube 1 is made of soft and safe material and is slidably connected to the mask 6. At the end closest to the patient's mouth, the rubber pad 9 fixedly installed on the fixing plate 7, under the action of the compression spring 8, can conform to the patient's mouth and provide comfortable support.

[0037] Medical staff operate the control valve 11, which is located between the gastric tube 1 and the food storage container 2, to precisely control the amount of food delivered. Food is delivered from the food storage container 2 to the patient's stomach through the gastric tube 1. The camera 3 and the light 4, which are fixedly installed at the other end of the gastric tube 1, are turned on. The light 4 provides sufficient light so that medical staff can observe the condition inside the patient's stomach through the camera 3.

[0038] When food is delivered to the end of the gastric tube 1 near the camera 3, the multiple valves 5 installed there rotate. When the food is being delivered forward normally, they open under the pressure of the food. If backflow occurs, the torsion spring between the valve 5 and the gastric tube 1 will close the valve 5 to prevent food backflow.

[0039] When cleaning of the inside of the food storage container 2 is required, the power of the drive motor 13 is transmitted to the first gear 23 through the second gear 25 and the gear belt 24. The first gear 23 drives the ratchet 22, which is fixedly mounted on it, to rotate. The ratchet 22 engages with the pawl 19, which is fixedly mounted on the reciprocating threaded rod 17 and has a return spring 18 at one end. Under the action of the limit blocks 20 on both sides (the limit blocks 20 are fixedly mounted on the rotating disk 21, which is rotatably mounted on the food storage container 2), the pawl 19 achieves intermittent rotation of the reciprocating threaded rod 17. The reciprocating threaded rod 17 is rotatably mounted inside the food storage container 2 and is threadedly connected to the cleaning ring 16, which is slidably connected inside the food storage container 2 and fits tightly against the inner wall of the food storage container 2. The rotation of the reciprocating threaded rod 17 drives the cleaning ring 16 to reciprocate inside the food storage container 2, tightly scraping away the residue on the inner wall of the food storage container 2, thus achieving thorough cleaning.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The preferred embodiments of the invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. The embodiments selected and specifically described in this specification are intended to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A visual anti-reflux nasogastric tube, comprising a nasogastric tube (1), characterized in that: One end of the gastric tube (1) is connected to the food storage container (2), and the other end is fixedly installed with a camera (3) and a light (4). A valve (5) is rotatably installed on the end of the gastric tube (1) near the camera (3). Multiple valves (5) are provided, and a torsion spring is provided between the multiple valves (5) and the gastric tube (1). The gastric tube (1) is slidably connected to the mask (6). A fixing plate (7) is fixedly installed inside the mask (6). One end of a compression spring (8) is fixedly installed on the fixing plate (7), and the other end of the compression spring (8) is fixedly installed on a rubber pad (9). The rubber pad (9) is used to support the patient's mouth. A stirring mechanism is provided inside the food storage container (2). The stirring mechanism is used to crush the food.

2. The visual anti-reflux nasogastric tube according to claim 1, characterized in that, The mask (6) is fixedly installed with elastic straps (10), which are used to be worn on the patient's ears. The gastric tube (1) is made of soft material, and a control valve (11) is provided between the gastric tube (1) and the food storage container (2).

3. The visual anti-reflux nasogastric tube according to claim 2, characterized in that, The stirring mechanism includes a stirring rod (12) that is rotatably installed inside the food storage cylinder (2). One end of the stirring rod (12) is fixedly installed with the output end of a drive motor (13), and the drive motor (13) is fixedly installed on the top of the food storage cylinder (2).

4. A visual anti-reflux nasogastric tube according to claim 3, characterized in that, A filter screen (14) is fixedly installed inside the food storage cylinder (2), and a cleaning brush (15) is fixedly installed at the bottom of the stirring rod (12). The cleaning brush (15) and the surface of the filter screen (14) are in contact with each other.

5. A visual anti-reflux nasogastric tube according to claim 4, characterized in that, The food storage cylinder (2) is slidably connected to a cleaning ring (16), which is in contact with the inner wall of the food storage cylinder (2). The cleaning ring (16) is threadedly connected to a reciprocating threaded rod (17), which is rotatably installed inside the food storage cylinder (2).

6. A visual anti-reflux nasogastric tube according to claim 5, characterized in that, The reciprocating threaded rod (17) is fixedly installed with one end of a return spring (18), and the other end of the return spring (18) is fixedly installed on a pawl (19). Limiting blocks (20) are provided on both sides of the pawl (19), and the limiting blocks (20) are fixedly installed on a rotating disk (21). The rotating disk (21) is rotatably installed on the food storage cylinder (2).

7. A visual anti-reflux nasogastric tube according to claim 6, characterized in that, The pawl (19) engages with a ratchet (22), the ratchet (22) is fixedly mounted on a first gear (23), the first gear (23) is rotatably mounted on a food storage cylinder (2), and the first gear (23) is connected to a second gear (25) via a gear belt (24).

8. A visual anti-reflux nasogastric tube according to claim 7, characterized in that, The second gear (25) is rotatably mounted on the food storage cylinder (2). The second gear (25) is fixedly connected to the output end of the drive motor (13). The food storage cylinder (2) has a feed inlet (26).

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