A bedside portable visual nasogastric feeding tube placement system with standard path for patients with severe, critical and ICU diseases

Abstract

The present invention relates to the field of medical device technology, specifically to a standard path for the indwelling of a portable visual nasogastric feeding tube at the bedside of a patient with a severe, critical illness, or ICU, and a system for indwelling the tube, including a receiving display and a nasogastric tube, a control handle movably mounted on one side of the receiving display, an endoscope fixedly connected to one end of the control handle, and a wireless transmission device fixedly connected to the other end of the control handle, the wireless transmission device matching the receiving display; the present invention can significantly improve the success rate of indwelling tubes, greatly shorten the indwelling tube time, and significantly improve the work efficiency of doctors through a portable visual nasogastric tube indwelling device. From the patient's perspective, the indwelling tube time is shortened, various auxiliary operations are reduced, the incidence and risk of adverse events are reduced, and in particular, the fatal complications of critically ill patients caused by the indwelling of a feeding tube into the lungs are eliminated, the cost and radiation of filming are reduced, and the damage caused to patients by multiple indwelling tubes is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a bedside portable visualized nasogastric feeding tube indwelling standard path for patients with severe, critical illness and ICU. Background Art

[0002] Severely or critically ill patients and patients in the ICU are often unable to be fed orally due to impaired consciousness or being in a state of sedation, analgesia, or mechanical ventilation. Feeding through nasogastric and nasoenteric tubes are the most commonly used enteral nutrition routes for these patients. Although the gastric tube is the most common nutrition route for ICU patients, it is also very common for patients to have gastric feeding intolerance, gastric discharge obstruction, gastroparesis, or a high risk of aspiration due to various reasons and need nasoenteric tube placement for post-pyloric feeding. Among the various nasoenteric tube placement techniques currently used in clinical practice, the most practical one in the ICU is the bedside manual blind insertion technique. The overall success rate of blind insertion of spiral nasoenteric tubes used in the past is relatively low, and drugs and acupuncture are required to promote intestinal peristalsis. This method only requires manual placement of the tube at the bedside, which is simple and easy to operate and does not require special Special equipment is currently an effective method for early implementation of enteral nutrition by bedside catheterization in critically ill patients. This method has a certain probability of misplacement into the airway, and once it enters the trachea, there will be a fatal risk; this method requires X-ray after placement to determine the position, and there will be a certain delay in feeding time; this method has 15%-20% of patients who cannot be successfully placed in one go and need repeated adjustments. Repeated blind insertion of the tube after an unsuccessful placement is likely to cause damage to the patient's nasal mucosa, esophagus, and stomach. Repeated radiography and positioning will increase costs and have the disadvantages of adverse radiation. For cases where placement is unsuccessful once, the workload of medical staff placing nasoenteric tubes surrounding intestinal tube placement has increased significantly. In addition, a small number of patients who have failed to be placed in the tube multiple times still need to be placed in the tube with the assistance of a gastroscopy.

[0003] The current blind tube insertion technique has a 57% success rate in spiral tube placement in patients with no gastric motility. This method has a long retention time and a low success rate and is not suitable for use in ICU patients. With the rapid advancement of medical equipment today, inserting nasogastric feeding tubes under endoscopic visualization is the best way to solve the above shortcomings. Summary of the invention

[0004] The object of the present invention is to provide a standard path for the indwelling of a portable bedside visualized nasogastric feeding tube for patients with severe, critical and ICU diseases and a indwelling system thereof, including an indwelling system, the indwelling system including a receiving display, a wireless transmission device, an endoscope and a nasogastric feeding tube, one end of the endoscope is provided with a control handle, the control handle is movably connected to the side wall of the receiving display through a bracket, the wireless transmission device is movably connected to one end of the control handle, the wireless transmission device is connected to the control handle, the nasogastric tube is a hollow tube, and an adjustment mechanism is provided inside the endoscope; The adjustment mechanism includes a mounting seat, an electric push rod, a limit plate and a limit member. A mounting cavity is opened inside the endoscope. There are four mounting cavities, which are evenly distributed inside the endoscope. The mounting seat is fixedly connected to the inner wall of the mounting cavity. The electric push rod is movably connected to the mounting seat. The electric push rod is located inside the mounting cavity. The limit plate is fixedly installed inside the mounting cavity. The gap between one side of the limit plate and the inner wall of the mounting cavity forms a limit groove. The limit member is fixedly connected to one end of the electric push rod, and the limit member is located inside the limit groove.

[0005] Optionally, the endoscope has a tube diameter of 2-2.6 mm (currently 2 mm is used), and a length of 150-200 cm.

[0006] Optionally, a lighting lamp is installed around the lens at one end of the endoscope, and the lighting lamp is a cold light lamp.

[0007] Optionally, a side wall at one end of the endoscope is configured as a curved surface.

[0008] Optionally, the nasointestinal tube is made of disposable material, the material of the nasointestinal tube is polyether-type polyurethane, the specification of the nasogastric feeding tube is 12~14Fr, and the endoscope can be inserted into the nasogastric feeding tube.

[0009] Optionally, the opening at one end of the nasogastric feeding tube is configured as a smooth curved surface.

[0010] Optionally, the receiving display includes a wireless receiver, a display and an operation key, the wireless receiver is installed inside the receiving display, the display and the operation key are both installed inside the receiving display, and the operation key is located on one side of the display.

[0011] Optionally, the wireless receiver matches the wireless transmission device, and the receiving display is wirelessly connected to the endoscope via the wireless receiver and the wireless transmission device.

[0012] A second connection end is installed at one end of the control handle, and a small screen is fixedly installed at the second connection end. A first connection end is installed at one side of the receiving display screen, and the first connection end matches the second connection end.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention can significantly improve the success rate of catheterization, shorten the catheterization time, and improve the work efficiency of doctors through the portable visualized nasogastric nutrition tube indwelling device. From the patient's perspective, the catheterization time is shortened, various auxiliary operations are reduced, the incidence and risk of adverse events are reduced, the cost and radiation of filming are reduced, and the damage to patients caused by multiple catheterizations is reduced.

[0015] 2. The present invention improves the problem of insufficient directionality of the endoscope by setting four electric push rods inside the endoscope through an adjustment mechanism, and increases the pointing ability of the endoscope in four directions of up, down, left and right, so as to have better directionality and improve the performance of the device.

[0016] 3. In addition, since the placement of the nasogastric feeding tube can be confirmed under visual conditions, the patient can start eating immediately, ensuring the early intake of enteral nutrition, promoting the patient's gastrointestinal function, ensuring the patient's nutrition, reducing the occurrence of enterogenic infection, and promoting the patient's recovery, which is of great significance and value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the control handle of the present invention;

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

[0020] Figure 4 It is a partial cross-sectional view of the interior of the endoscope of the present invention;

[0021] Figure 5 This is the image of the gastric body under gastroscopy;

[0022] Figure 6 This is the image of the pyloric orifice under gastroscopy;

[0023] Figure 7 This is the image of the duodenum under gastroscopy;

[0024] Figure 8 This is an image of the nasal concha under the endoscope of the present invention;

[0025] Fig. 9 This is an image of the esophagus under the endoscope of the present invention;

[0026] Fig.10 The endoscopic images of the cardia opening and closing are shown in the present invention;

[0027] Fig.11 This is an image of the stomach body under the endoscope of the present invention;

[0028] Fig.12 This is an image of the pyloric canal under the endoscope of the present invention;

[0029] Fig.13 This is an image of the pyloric orifice under the endoscope of the present invention;

[0030] Fig.14 This is an image of the duodenum under the endoscope of the present invention.

[0031] Description of Figure Numbers:

[0032] 1. Receiving display; 2. Control handle; 3. Wireless transmission device; 4. Endoscope; 5. Nasogastric tube; 6. Mounting seat; 7. Electric push rod; 8. Limiting plate; 9. Mounting cavity; 10. Limiting member; 11. Small screen; 12. First connecting end; 13. Second connecting end.

[0033] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figure 1-3The present invention provides a standard path and an indwelling system for a portable bedside visualized nasogastric nutrition tube for patients with severe, critical and ICU diseases. The indwelling system includes a receiving display 1, a wireless transmission device 3, an endoscope 4 and a nasogastric tube 5. One end of the endoscope 4 is provided with a control handle 2, which is movably connected to the side wall of the receiving display 1 through a bracket, and the control handle 2 can be disassembled. The wireless transmission device 3 is movably connected to one end of the control handle 2, and the wireless transmission device 3 is connected to the control handle 2. The nasogastric tube 5 is a hollow tube, and a second connecting end 13 is installed at one end of the control handle 2, and a small screen 11 is fixedly installed on the second connecting end 13. A first connecting end 12 is installed on one side of the receiving display screen 1, and the first connecting end 12 matches the second connecting end 13. When in use, the control handle 2 can be connected to the first connecting end 12 on one side of the receiving display screen 1 through the second connecting end 13 to achieve a delay-free real-time viewing effect. By arranging a detachable small screen 11 at the second connecting end 13 of the control handle 2, the control can be performed by viewing the small screen 11 during use, which is convenient to use.

[0037] In some embodiments, an adjustment mechanism is provided inside the endoscope 4. Figure 4As shown, the adjustment mechanism includes a mounting seat 6, an electric push rod 7, a limit plate 8 and a limit member 10. A mounting cavity 9 is provided inside the endoscope 4. There are four mounting cavities 9. The four mounting cavities 9 are evenly distributed inside the endoscope 4. The four mounting cavities 9 are located in four directions of up, down, left and right at one end of the endoscope 4. The mounting seat 6 is fixedly connected to the inner wall of the mounting cavity 9. The electric push rod 7 is movably connected inside the mounting seat 6. By installing the electric push rod 7 inside the mounting seat 6, the electric push rod 7 can be movable inside the mounting cavity 9. The electric push rod 7 Located inside the installation cavity 9, the limit plate 8 is fixedly installed inside the installation cavity 9, and the gap between one side of the limit plate 8 and the inner wall of the installation cavity 9 forms a limit groove. By setting the limit plate 8, the limit plate 8 can limit the limit member 10. The limit member 10 is fixedly connected to one end of the electric push rod 7. The limit member 10 is located inside the limit groove. The limit member 10 is movable in the limit groove on one side of the limit plate 8, so that the limit member 10 can move in the limit groove when the electric push rod 7 is contracted. By installing the limit member 10 at one end of the electric push rod 7, the electric When the push rod 7 contracts, the limiter 10 will be driven to move to one side. When moving, the limiter 10 will be stuck in the limit groove through the limit plate 8 to pull one end of the endoscope 4 toward the direction of the electric push rod 7, so that one end of the endoscope 4 is bent toward the side of the electric push rod 7, so that the endoscope 4 rotates in this direction. By setting the adjustment mechanism, the endoscope 4 can be rotated in multiple directions so as to have better directivity; the control handle 2 is connected to the four electric push rods 7, and the operation of the four electric push rods 7 can be controlled by the control handle 2. When the endoscope 4 is inserted into the duodenum, the control handle 2 can be used to control the front end of the endoscope 4 to be directional and bend in order to guide the direction. Through the wireless transmission device 3 at the other end of the control handle 2, the picture taken by the endoscope 4 can be displayed in real time on the receiving display 1 to guide the placement of the nasointestinal tube 5. The whole device is light and can be easily picked up by one hand. It can be operated by a doctor alone at the bedside. By setting four electric push rods 7, the pointing ability of the endoscope 4 in the four directions of up, down, left and right is improved so as to have better directivity and improve the performance of the device.

[0038] In this embodiment, the diameter of the endoscope 4 is less than 2.6mm, the length of the endoscope 4 is between 150cm-200cm, and an illuminating lamp is installed around the lens at one end of the endoscope 4. The illuminating lamp is a cold light lamp, and the side wall at one end of the endoscope 4 is set as a curved surface; the lens of the endoscope 4 can maintain a good field of view through the cold light source, and one end of the endoscope 4 is curved, which is smooth and not easy to damage the gastrointestinal mucosa. The whole endoscope 4 is soft and has a certain elasticity so as to provide suitable support for the intestinal tract and facilitate the guidance of the nasointestinal tube 5. The endoscope 4 part is sealed as a whole and easy to disinfect, which meets the regulations and requirements of hospital infection prevention and control.

[0039] See also Figure 1-3The nasogastric nutrition tube 5 is a disposable material. The material of the nasogastric nutrition tube 5 is polyether-type polyurethane. The specification of the nasogastric nutrition tube 5 is 12~14Fr. The endoscope 4 can be inserted into the nasogastric nutrition tube 5. The receiving display 1 includes a wireless receiver, a display and an operation key. The wireless receiver is installed inside the receiving display 1. The display and the operation key are both installed inside the receiving display 1. The operation key is located on one side of the display. The wireless receiver is matched with the wireless transmission device 3. The receiving display 1 is wirelessly connected to the endoscope 4 through the wireless receiver and the wireless transmission device 3; the material of the nasogastric nutrition tube 5 is disposable and meets the relevant standards of the national medical nutrition tube. The front opening part is a curved, smooth and soft surface that is not easy to damage the gastrointestinal mucosa.

[0040] See also Figure 5-10 In specific applications, in the early stage of preliminary research and exploration, through a large number of practical applications of the endoscope 4 of this system, the landmark images of the indicative positioning points from the nasal concha, esophagus, cardia, greater curvature of the stomach, and the path to the pylorus and duodenum were determined, and according to the indicative significance of these positioning points, the pylorus was quickly found and passed, and the catheterization in the duodenum was completed. The entire catheterization time is controlled within 15 minutes by skilled physicians. Figure 4-6 and Figure 7-9 The comparison between them shows that the system can more clearly distinguish the position of the nasogastric tube 5 in the patient's body.

[0041] The working principle and use process of the utility model are as follows: when in use, the nasogastric nutrition tube 5 is sleeved on the side wall of the endoscope 4, and the endoscope 4 is inserted into the patient's body to bring the nasogastric nutrition tube 5 into the patient's body. Through the wireless transmission device 3 at the other end of the control handle 2, the picture taken by the endoscope 4 can be displayed as a real-time image through the receiving display 1. By setting the control handle 2, the front end of the endoscope 4 can be controlled to bend in a directional manner to guide the direction, so as to adjust the retention position of the nasogastric nutrition tube 5, so that in most cases, these positioning points can be quickly found in the stomach, and according to the indications of these positioning points, the pylorus can be quickly found and passed to complete the placement of the tube in the duodenum.

[0042] Example 2

[0043] The endoscope 4 of the device can change the lighting equipment and a clearer camera to further expand the field of view, which is also a very important step for further quickly locating the position of the pylorus and shortening the catheterization time. If the diameter of the endoscope 4 is 2 mm, a 12Fr nasogastric tube 5 can be used to make the patient more comfortable.

[0044] This system is designed for bedside nasointestinal tubes 5 for patients with severe, critical illnesses and ICUs. The entire process of use is similar to the process of gastroscopy, and the technique of use is similar to that of the fiberoptic bronchoscope used in daily ICU work. In addition, due to the miniaturization of the endoscope 4 of this system, it can be placed in a 12-14Fr nasointestinal tube 5, just like the usual nasointestinal tube 5, which has almost no adverse effects on patients. Severe and critically ill patients are generally under strict life monitoring. Critically ill patients in the ICU are often under good sedation and analgesia and mechanical ventilation and under continuous vital sign monitoring, so the safety of patients is more guaranteed. In the disinfection of equipment and hospital infection prevention and control, before and after using this equipment, it can be disinfected according to the relevant requirements of the endoscope 4, and then placed in a special endoscope 4 disinfection cabinet for standby use. Although this product can be regarded as a miniature version of a gastroscope, its endoscope 4 system has no cavity and is fully enclosed. Disinfection and storage after use are more convenient and easier than gastroscopes and fiberoptic bronchoscopes, which helps prevent and control hospital infections.

[0045] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the protection scope determined by the claims submitted for the present invention.

Claims

1. A bedside portable visual nasogastric feeding tube indwelling system with a standard path for patients with severe, critical and ICU diseases, characterized by: The indwelling system comprises a receiving display (1), a wireless transmission device (3), an endoscope (4) and a nasogastric tube (5); one end of the endoscope (4) is provided with a control handle (2); the control handle (2) is movably connected to the side wall of the receiving display (1) via a bracket; the wireless transmission device (3) is movably connected to one end of the control handle (2); the wireless transmission device (3) is connected to the control handle (2); the nasogastric tube (5) is a hollow tube; and an adjustment mechanism is provided inside the endoscope (4); The adjustment mechanism comprises a mounting seat (6), an electric push rod (7), a limit plate (8) and a limit member (10); a mounting cavity (9) is provided inside the endoscope (4); four mounting cavities (9) are provided, and the four mounting cavities (9) are evenly distributed inside the endoscope (4); the mounting seat (6) is fixedly connected to the inner wall of the mounting cavity (9); the electric push rod (7) is movably connected inside the mounting seat (6); the electric push rod (7) is located inside the mounting cavity (9); the limit plate (8) is fixedly installed inside the mounting cavity (9); a gap between one side of the limit plate (8) and the inner wall of the mounting cavity (9) forms a limit groove; the limit member (10) is fixedly connected to one end of the electric push rod (7); the limit member (10) is located inside the limit groove; The receiving display (1) comprises a wireless receiver, a display and an operation key, wherein the wireless receiver is installed inside the receiving display (1), the display and the operation key are both installed inside the receiving display (1), and the operation key is located on one side of the display; The wireless receiver matches the wireless transmission device (3), and the receiving display (1) is wirelessly connected to the endoscope (4) via the wireless receiver and the wireless transmission device (3); A second connection end (13) is installed at one end of the control handle (2), a small screen (11) is fixedly installed at the second connection end (13), and a first connection end (12) is installed at one side of the receiving display (1), the first connection end (12) matches the second connection end (13).

2. The bedside portable visualized nasogastric feeding tube indwelling standard path indwelling system for severe, critical and ICU patients according to claim 1, characterized in that: The diameter of the endoscope (4) is 2-2.6 mm according to clinical needs and manufacturing process. 2 mm is suitable for nasogastric feeding tubes of 12 Fr and above, and 2.6 mm is suitable for nasogastric feeding tubes of 14 Fr and above. The length of the endoscope (4) is between 150 cm and 200 cm.

3. The bedside portable visualized nasogastric feeding tube indwelling standard path indwelling system for severe, critical and ICU patients according to claim 1, characterized in that: An illuminating lamp is installed around the lens at one end of the endoscope (4), and the illuminating lamp is a cold light lamp.

4. The bedside portable visualized nasogastric feeding tube indwelling standard path indwelling system for severe, critical and ICU patients according to claim 1, characterized in that: A side wall at one end of the endoscope (4) is arranged as a curved surface.

5. The bedside portable visualized nasogastric feeding tube indwelling standard path indwelling system for severe, critical and ICU patients according to claim 1, characterized in that: The nasointestinal tube (5) is made of disposable material. The material of the nasointestinal tube (5) is polyether-type polyurethane. The specification of the nasointestinal tube (5) is 12-14Fr. The endoscope (4) can be placed inside the nasointestinal tube (5).

6. The bedside portable visualized nasogastric feeding tube indwelling standard path indwelling system for severe, critical and ICU patients according to claim 1, characterized in that: The opening at one end of the nasointestinal tube (5) is configured as a smooth arc-shaped surface.

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