Nasogastric feeding tube fixing device

Abstract

The invention relates to the technical field of nasal feeding tube fixing, and discloses a nasal feeding tube fixing device which comprises a nasal feeding tube and a fixing mechanism, the fixing mechanism comprises edge blocks, a head band, a winding band and a chin strap, the two ends of the winding band are fixedly connected with the edge blocks, the edge blocks are provided with the head band, and the chin strap is arranged on the head band. The chin support is installed on the upper surface of the middle of the winding belt, and an installation mechanism used for being connected with the fixing mechanism is installed on the nasal feeding tube. The mounting mechanism comprises a movable block, a positioning assembly, an assembling assembly, a limiting assembly and a limiting belt, through the arrangement of the fixing mechanism and the mounting mechanism, the wearing and fixing comfort of the nasal feeding tube is improved, the nasal feeding tube is also prevented from moving at will, adjustment is conveniently conducted according to the face shape and size of a patient, the adaptability of the device is improved, and the practicability is high. And the air permeability is ensured by using the breathable material, the positioning assembly is convenient to replace, and when parts such as the fixing band and the protective strip are polluted by oil on the face or other conditions, the parts are directly replaced, so that the cost is lower.

Description

Technical Field

[0001] The invention relates to the technical field of nasogastric feeding tube fixing, in particular to a nasogastric feeding tube fixing device. Background Art

[0002] In special circumstances, a nasogastric tube is artificially inserted into the esophagus through the nasal cavity. The food is first ground into a paste using a grinder, and a large syringe is used to connect the large injection port under the tube connector. After the connection is secure, a manual pressurized push rod piston is used to pump water and food into the patient's stomach, helping patients who cannot swallow independently to provide water and food and maintain their metabolism, weight and nutrition.

[0003] Traditional nasogastric tubes are fixed with a fixing belt around the head, which is uncomfortable to wear and easy to pull the nasogastric tube. The fixing belt will also move up and down, causing the nasogastric tube to move up and down, and the fixation is unstable.

[0004] In addition, the above structure is not convenient to adjust according to the patient's face shape and size, and has poor adaptability, which leads to poor user experience and comfort. Moreover, once the patient's face is prone to oiliness or other conditions contaminate the fixing belt, the fixing belt is not convenient to replace.

[0005] In order to solve the above problems, a nasogastric feeding tube fixing device is proposed in the present application. Summary of the invention

[0006] The purpose of the present invention is to provide a nasogastric feeding tube fixing device to solve the problems in the prior art proposed in the above background technology that the fixing belt is easy to move up and down, the nasogastric feeding tube is not fixed stably, and it is not convenient to adjust according to the patient's face shape and size, and the fixing belt is not convenient to replace.

[0007] To achieve the above object, the present invention provides the following technical solutions: a nasogastric tube fixing device, comprising a nasogastric tube and a fixing mechanism, wherein the fixing mechanism comprises a side block, a headband, a wrap and a chin rest, both ends of the wrap are fixedly connected to the side blocks, the headband is installed on the side block, the chin rest is installed on the middle upper surface of the wrap, and a mounting mechanism for connecting the fixing mechanism is installed on the nasogastric tube;

[0008] The mounting mechanism comprises a movable block, a positioning component, an assembly component, a limit component and a limit belt. Two movable blocks are symmetrically and slidingly mounted on the outer side of the winding belt. The positioning component is mounted on the movable block. Two groups of assembly components are symmetrically mounted on the positioning component. Two groups of limit components are symmetrically mounted on the positioning component. One side of the limit component is connected to the nasogastric tube. The limit belt is mounted on the positioning component.

[0009] Furthermore, the number of the headbands is three, the front end surfaces of two side blocks are fixedly connected to the headband located at the front end, the rear end surfaces of two side blocks are fixedly connected to the headband located at the rear end, and the top end surfaces of two side blocks are fixedly connected to the headband located at the top end.

[0010] Furthermore, the positioning assembly includes a fixing belt, a positioning block and a cushion block. A connecting groove A is opened on the inner side of the movable block, and the fixing belt is slidably installed on the inner side of the connecting groove A. The positioning block is provided between the two fixing belts, and the cushion block is installed on the rear end face of the positioning block. The limiting belt is arranged on the side of the front end face of the fixing belt away from the positioning block.

[0011] Furthermore, the inner side of the movable block is provided with three layers of breathable cloth, and the three layers of breathable cloth of the movable block are respectively A layer, B layer and C layer, the three layers of breathable cloth of the movable block close to the positioning block is layer C, and the three layers of breathable cloth of the movable block away from the positioning block is layer A, the top ends of layers A and B and the bottom ends of layers A and B of the positioning block are fixedly connected, and the front ends of layers B and C and the front ends of layers B and C of the positioning block are fixedly connected.

[0012] Furthermore, the gap between the B layer and the C layer of the positioning block is a connecting groove B, the winding belt is arranged on the inner side of the connecting groove B, and the outer side of the winding belt is slidably connected to the connecting groove B.

[0013] Furthermore, each group of the assembly components includes a socket, a clamping strip, a sub-buckle and a female buckle, the sockets are symmetrically fixedly connected to the left and right sides of the positioning block, the socket is arranged in a "U" shape, the outer side of the socket is slidably connected to the fixing belt, the end of the socket close to the positioning block is fixedly connected to the clamping strip, the length of the clamping strip is 1.2 times the length of the socket, a plurality of slots arranged in sequence are provided on the side of the fixing belt away from the positioning block, the sub-buckle is fixedly connected to the side of the movable block away from the positioning block, the female buckle is fixedly connected to the inner side of the movable block, and the corresponding sub-buckles and female buckles are respectively arranged on the left and right sides of the fixing belt.

[0014] Furthermore, the movement trajectory of the slot of the fixing belt is linear, the movement trajectories of the sub-buckle and the mother buckle are both linear, and the movement trajectory of the slot of the fixing belt intersects with the movement trajectory of the sub-buckle.

[0015] Furthermore, each group of the limiting components includes a guard strip, a connecting strip A, a connecting strip B, a limiting pad and an adjustment groove. The guard strip is fixedly connected below the front end surface of the fixing belt, the connecting strip A is fixedly connected below the front end surface of the guard strip, and the connecting strip B is fixedly connected above the front end surface of the fixing belt. Four adjustment grooves are opened at one time on the side of the guard strip close to the positioning block.

[0016] Furthermore, the connecting strip B and the connecting strip A are double-sided adhesive tapes.

[0017] Furthermore, the connecting strip A is a Velcro sub-strip, and the connecting strip B is a Velcro main strip.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention improves the comfort of wearing and fixing the nasogastric tube by providing a fixing mechanism and an installation mechanism, avoids the nasogastric tube from moving at will, and is convenient for adjustment according to the face shape and size of the patient, thereby improving the adaptability of the device. The use of breathable materials ensures breathability and facilitates replacement of positioning components. When the fixing belt, guard strip and other parts are contaminated by oily facial skin or other conditions, they can be directly replaced. The invention has low cost, simple structure, convenient installation and stable fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the installation structure of the installation mechanism of the present invention;

[0022] Figure 3 It is a schematic diagram of the installation structure of the positioning assembly of the present invention;

[0023] Figure 4 It is a schematic diagram of the installation structure of the cushion block of the present invention;

[0024] Figure 5 A bottom view of the installation structure of the positioning block of the present invention;

[0025] Figure 6 It is a schematic diagram of the installation structure of the assembly components of the present invention;

[0026] Figure 7 It is a schematic diagram of the installation structure of the female buckle of the present invention;

[0027] Figure 8 The present invention is attached Figure 7 Schematic diagram of the installation structure of the movable block;

[0028] Fig. 9 It is a schematic diagram of the installation structure of the limit assembly of the present invention;

[0029] In the figure:

[0030] 1. Fixing mechanism; 11. Side block; 12. Headband; 13. Wrap; 14. Chin rest;

[0031] 2. Installation mechanism; 21. Movable block; 22. Positioning assembly; 221. Fixing belt; 222. Positioning block; 223. Cushion block; 23. Assembly assembly; 231. Clamping seat; 232. Clamping strip; 233. Sub buckle; 234. Female buckle; 24. Limiting assembly; 241. Guard strip; 242. Connecting strip A; 243. Connecting strip B; 244. Limiting pad; 245. Adjusting slot; 25. Limiting belt;

[0032] 3. Nasogastric feeding tube. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] The standard parts used in this application can all be purchased from the market, and special-shaped parts can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the existing technology, and the components used for circuit connection are all conventional models in the existing technology.

[0035] At the same time, in order to clearly express the connection relationship and working principle between the components and highlight the key points, the drawings in the specification are organized and drawn in the form of simple diagrams. One simple diagram can correspond to a variety of materials and actual external structural shapes.

[0036] See also Figure 1-Figure 9 The present invention provides a technical solution: a nasogastric tube fixing device, comprising a nasogastric tube 3 and a fixing mechanism 1, wherein the fixing mechanism 1 comprises a side block 11, a headband 12, a belt wrap 13 and a chin rest 14, both ends of the belt wrap 13 are fixedly connected with the side block 11, the headband 12 is installed on the side block 11, the chin rest 14 is installed on the middle upper surface of the belt wrap 13, and a mounting mechanism 2 for connecting the fixing mechanism 1 is installed on the nasogastric tube 3;

[0037] The mounting mechanism 2 comprises a movable block 21, a positioning component 22, an assembly component 23, a limit component 24 and a limit belt 25. Two movable blocks 21 are symmetrically slidably mounted on the outer side of the winding belt 13. The movable block 21 is mounted with a positioning component 22. Two groups of assembly components 23 are symmetrically mounted on the positioning component 22. Two groups of limit components 24 are symmetrically mounted on the positioning component 22. One side of the limit component 24 is connected to the nasogastric tube 3. The limit belt 25 is mounted on the positioning component 22. When the device is in use, the headband 12 is put on the patient's head. The three headbands 12 are respectively put on the top, front and back of the patient's head. The winding belt 13 is looped around the patient's face to fit the chin support 14 to the patient's chin. Then slide the movable block 21 on the outside of the wrapping band 13 to a position that is consistent with the horizontal direction of the patient's nose, then place the positioning block 222 on the position of the patient's nose bridge close to the nose tip, then fit the pad 223 with the patient's nose dorsum, pass the fixing band 221 through the holder 231, the length of the clip 232 is greater than the length of the holder 231 so the clip 232 cannot pass through, then pass the holder 231 through the connecting groove A, which can also be understood as between the A layer and the B layer of the movable block 21, and then gently tighten it so that the positioning block 222 is stably fitted with the nose bridge, then align the appropriate slot on the fixing band 221 with the sub-buckle 233, and then pass the sub-buckle 233 through the slot of the fixing band 221 and buckle it on the female buckle 234 On the inside, the sub-buckle 233 and the female buckle 234 buckle the fixing belt 221 to limit and fix it. The nasogastric tube 3 can be selected to pass through the left or right side of the fixing belt 221 according to the actual position, and a suitable and comfortable position is selected according to the actual facial situation to pass the nasogastric tube 3 through the limiting belt 25, and then the protective strip 241 is reversed upward to fit with the fixing belt 221, and the connecting strip A242 is bonded to the connecting strip B243. The connecting strip A242 and the connecting strip B243 can be bonded whether they are double-sided stickers or Velcro, which protects and limits the nasogastric tube 3 to prevent the nasogastric tube 3 from moving randomly on the face. The wrapping of the fixing belt 221 and the protective strip 241 also ensures that the part of the nasogastric tube 3 leaking out of the face is close to the face. The two limiting pads 244 are respectively placed above and below the connecting end of the guard strip 241 and the fixing belt 221. The width of the limiting pad 244 is greater than the inner diameter of the adjusting groove 245, so that the limiting pad 244 cannot pass through, avoiding the nasogastric tube 3 from moving at will, improving the comfort of wearing and fixing the nasogastric tube 3, and avoiding the nasogastric tube 3 from moving at will. It is convenient to adjust according to the patient's face shape and size, improving the adaptability of the device, and the use of breathable materials ensures air permeability, and it is also convenient to replace the positioning component 22. When the fixing belt 221, the guard strip 241 and other parts are contaminated by oily face or other situations, they can be directly replaced, with low cost, simple structure, easy installation and stable fixation.

[0038] There are three headbands 12. The front end surfaces of the two side blocks 11 are fixedly connected to the headband 12 at the front end, the rear end surfaces of the two side blocks 11 are fixedly connected to the headband 12 at the rear end, and the top ends of the two side blocks 11 are fixedly connected to the headband 12 at the top end. The headband 12 is put on the patient's head, and the three headbands 12 are respectively put on the top, front and back of the patient's head. The belt 13 is looped around the patient's face, and the chin support 14 is fit and stuck on the patient's chin. Then the movable block 21 is slid on the outside of the belt 13 to a position consistent with the horizontal direction of the patient's nose.

[0039] The positioning assembly 22 includes a fixing belt 221, a positioning block 222 and a cushion block 223. A connecting groove A is provided on the inner side of the movable block 21, and a fixing belt 221 is slidably installed on the inner side of the connecting groove A. A positioning block 222 is provided between the two fixing belts 221, and a cushion block 223 is installed on the rear end face of the positioning block 222. The limiting belt 25 is arranged on the side of the front end face of the fixing belt 221 away from the positioning block 222. The positioning block 222 is placed at a position close to the nose tip of the patient's nose bridge, and then the cushion block 223 is fitted with the patient's nose dorsum. The fixing belt 221 is passed through the holder 231, and the holder 231 is passed through the connecting groove A, which can also be understood as between the A layer and the B layer of the movable block 21, and then gently tightened so that the positioning block 222 is stably fitted with the nose bridge. The nasogastric tube 3 can be installed on the left fixing belt 221 or the right fixing belt 221 according to the actual position, and the nasogastric tube 3 is passed through the limiting belt 25 at a suitable and comfortable position according to the actual facial situation.

[0040] The inner side of the movable block 21 is provided with three layers of breathable cloth, and the three layers of breathable cloth of the movable block 21 are respectively A layer, B layer and C layer, the three layers of breathable cloth of the movable block 21 close to the positioning block 222 are C layer, and the three layers of breathable cloth of the movable block 21 away from the positioning block 222 are A layer, the top ends of the A layer and the B layer of the positioning block 222 and the bottom ends of the A layer and the B layer are fixedly connected, the front ends of the B layer and the C layer of the positioning block 222 and the front ends of the B layer and the C layer are fixedly connected, the positioning block 222 is placed at a position close to the nose tip of the patient's nose bridge, and then the cushion block 223 is fitted with the patient's nose dorsum, the fixing belt 221 is passed through the holder 231, the length of the card strip 232 is greater than the length of the holder 231, so the card strip 232 cannot pass through, and then the holder 231 is passed through the connecting groove A, which can also be understood as between the A layer and the B layer of the movable block 21, and then gently tightened to make the positioning block 222 stably fit the nose bridge.

[0041] The gap between the B layer and the C layer of the positioning block 222 is a connecting groove B. The winding belt 13 is arranged on the inner side of the connecting groove B. The outer side of the winding belt 13 is slidably connected to the connecting groove B, so that the movable block 21 can slide on the winding belt 13.

[0042] Each assembly component 23 includes a base 231, a card strip 232, a sub-buckle 233 and a female buckle 234. The left and right sides of the positioning block 222 are symmetrically fixedly connected with the base 231. The base 231 is set in a "U" shape. The outer side of the base 231 is slidably connected with the fixed belt 221. The end of the base 231 close to the positioning block 222 is fixedly connected with the card strip 232. The length of the card strip 232 is 1.2 times the length of the base 231. A plurality of slots arranged in sequence are provided on the side of the fixed belt 221 away from the positioning block 222. The side of the movable block 21 away from the positioning block 222 is fixedly connected with the sub-buckle 233, and the inner side of the movable block 21 is fixedly connected with the female buckle 234. The corresponding sub-buckle 233 and the female buckle 234 are fixedly connected. The buckles 234 are respectively arranged on the left and right sides of the fixing belt 221. The movement trajectory of the slot of the fixing belt 221 is straight. The movement trajectories of the sub-buckle 233 and the mother buckle 234 are both straight. The movement trajectory of the slot of the fixing belt 221 intersects with the movement trajectory of the sub-buckle 233. The fixing belt 221 is passed through the base 231. The length of the card strip 232 is greater than the length of the base 231, so the card strip 232 cannot pass through. Then the base 231 is passed through the connecting groove A. The appropriate slot on the fixing belt 221 is aligned with the sub-buckle 233. Then the sub-buckle 233 is passed through the slot of the fixing belt 221 and buckled on the inner side of the mother buckle 234. The sub-buckle 233 and the mother buckle 234 buckle the fixing belt 221 to limit the position.

[0043] Each group of limiting components 24 includes a guard strip 241, a connecting strip A242, a connecting strip B243, a limiting pad 244 and an adjustment slot 245. The guard strip 241 is fixedly connected to the lower front end surface of the fixing belt 221, the connecting strip A242 is fixedly connected to the lower front end surface of the guard strip 241, and the connecting strip B243 is fixedly connected to the upper front end surface of the fixing belt 221. The side of the guard strip 241 close to the positioning block 222 is provided with four adjustment slots 245 at a time. According to the actual facial conditions, a suitable and comfortable position is selected to pass the nasogastric feeding tube 3 through the limiting strip 25, and then the guard strip 241 is reversed upward to fit the fixing belt 221, and the connecting strip A242 and the connecting strip B243 are adhered. Connecting strip A242 and connecting strip B243 can be bonded together whether they are double-sided stickers or Velcro, to protect and limit the nasogastric tube 3, to prevent the nasogastric tube 3 from moving randomly on the face, and to ensure the comfort of the part of the nasogastric tube 3 leaking out of the face and fitting the face by wrapping the fixing belt 221 and the protective strip 241. Two limiting pads 244 are respectively placed above and below the connecting end of the protective strip 241 and the fixing belt 221, and the width of the limiting pad 244 is greater than the inner diameter of the adjusting groove 245, so that the limiting pad 244 cannot pass through, to prevent the nasogastric tube 3 from moving randomly, to improve the comfort of wearing and fixing the nasogastric tube 3, and to prevent the nasogastric tube 3 from moving randomly.

[0044] The connecting strip B243 and the connecting strip A242 are double-sided adhesive tapes. Tear off the double-sided adhesive tapes, turn over the protective strip 241, and adhere the connecting strip A242 and the connecting strip B243 together.

[0045] The connecting strip A242 is a Velcro sub-strip, and the connecting strip B243 is a Velcro main strip. The protective strip 241 is turned over, and the connecting strip A242 and the connecting strip B243 are pressed together to complete the bonding.

[0046] Working principle:

[0047] When the device is in use, the headband 12 is put on the patient's head, and the three headbands 12 are put on the top, front and back of the patient's head respectively, the belt 13 is looped around the patient's face to fit the chin support 14 to the patient's chin, and then the movable block 21 is slid on the outside of the belt 13 to a position consistent with the horizontal direction of the patient's nose, and then the positioning block 222 is placed on the position of the patient's nose bridge close to the nose tip, and then the cushion block 223 is fit with the patient's nose dorsum, and the fixing belt 221 is passed through the holder 231. The length of the card strip 232 is greater than the length of the holder 231, so the card strip 232 cannot pass through, and then the holder 231 is passed through the connecting groove A, which can also be understood as between the A layer and the B layer of the movable block 21, and then gently tightened to make the positioning block 222 stably fit with the nose bridge, and then align the appropriate card slot on the fixing belt 221 with the sub-buckle 233, and then Then, the sub-buckle 233 is passed through the slot of the fixing belt 221 and buckled on the inner side of the female buckle 234. The sub-buckle 233 and the female buckle 234 buckle the fixing belt 221 to limit and fix it. The nasogastric tube 3 can be installed on the left fixing belt 221 or the right fixing belt 221 according to the actual position, and a suitable and comfortable position is selected according to the actual facial situation to pass the nasogastric tube 3 through the limiting belt 25, and then the protective strip 241 is reversed upward to fit it with the fixing belt 221, and the connecting strip A242 is bonded to the connecting strip B243. The connecting strip A242 and the connecting strip B243 can be bonded whether they are double-sided stickers or Velcro, so as to protect and limit the nasogastric tube 3 and prevent the nasogastric tube 3 from moving randomly on the face. The wrapping of the fixing belt 221 and the protective strip 241 also ensures that the part of the nasogastric tube 3 leaking out of the face fits comfortably with the face.

[0048] Two limiting pads 244 are respectively placed above and below the connecting end of the guard strip 241 and the fixing belt 221. The width of the limiting pad 244 is greater than the inner diameter of the adjusting groove 245, so that the limiting pad 244 cannot pass through, avoiding the nasogastric tube 3 from moving at will, improving the comfort of wearing and fixing the nasogastric tube 3, and avoiding the nasogastric tube 3 from moving at will, and conveniently adjusting according to the patient's face shape and size, improving the adaptability of the device. The use of breathable materials ensures breathability and facilitates the replacement of the positioning component 22. When the fixing belt 221, the guard strip 241 and other parts are contaminated by oil on the face or other conditions, they can be directly replaced, with low cost, simple structure, convenient installation, and stable fixation.

Claims

1. A nasogastric feeding tube fixing device, characterized in that: The invention comprises a nasogastric feeding tube (3) and a fixing mechanism (1), wherein the fixing mechanism (1) comprises a side block (11), a headband (12), a belt wrap (13) and a chin rest (14), both ends of the belt wrap (13) are fixedly connected to the side block (11), the headband (12) is installed on the side block (11), the chin rest (14) is installed on the middle upper surface of the belt wrap (13), and a mounting mechanism (2) for connecting the fixing mechanism (1) is installed on the nasogastric feeding tube (3); The mounting mechanism (2) comprises a movable block (21), a positioning component (22), an assembly component (23), a limiting component (24) and a limiting belt (25); two movable blocks (21) are symmetrically slidably mounted on the outer side of the winding belt (13); the positioning component (22) is mounted on the movable block (21); two groups of the assembly components (23) are symmetrically mounted on the positioning component (22); two groups of the limiting components (24) are symmetrically mounted on the positioning component (22); one side of the limiting component (24) is connected to the nasogastric tube (3); and the limiting belt (25) is mounted on the positioning component (22).

2. A nasogastric feeding tube fixing device according to claim 1, characterized in that: The number of the headbands (12) is three, the front end surfaces of the two side blocks (11) are fixedly connected to the headband (12) located at the front end, the rear end surfaces of the two side blocks (11) are fixedly connected to the headband (12) located at the rear end, and the top end surfaces of the two side blocks (11) are fixedly connected to the headband (12) located at the top end.

3. A nasogastric feeding tube fixing device according to claim 2, characterized in that: The positioning assembly (22) comprises a fixing belt (221), a positioning block (222) and a cushion block (223); a connecting groove A is provided on the inner side of the movable block (21); the fixing belt (221) is slidably mounted on the inner side of the connecting groove A; the positioning block (222) is provided between the two fixing belts (221); the cushion block (223) is mounted on the rear end surface of the positioning block (222); and the limiting belt (25) is provided on the side of the front end surface of the fixing belt (221) away from the positioning block (222).

4. A nasogastric feeding tube fixing device according to claim 3, characterized in that: The inner side of the movable block (21) is provided with three layers of breathable cloth, and the three layers of breathable cloth of the movable block (21) are respectively layer A, layer B and layer C. The three layers of breathable cloth of the movable block (21) close to the positioning block (222) are layer C, and the three layers of breathable cloth of the movable block (21) away from the positioning block (222) are layer A. The top ends of the layers A and B of the positioning block (222) and the bottom ends of the layers A and B are fixedly connected, and the front ends of the layers B and C of the positioning block (222) and the front ends of the layers B and C are fixedly connected.

5. A nasogastric feeding tube fixing device according to claim 4, characterized in that: The gap between the B layer and the C layer of the positioning block (222) is a connection groove B, the winding belt (13) is arranged on the inner side of the connection groove B, and the outer side of the winding belt (13) is slidably connected to the connection groove B.

6. A nasogastric feeding tube fixing device according to claim 5, characterized in that: Each group of the assembly components (23) comprises a holder (231), a clamping strip (232), a sub-buckle (233) and a female buckle (234); the holder (231) is symmetrically fixedly connected to the left and right sides of the positioning block (222); the holder (231) is arranged in a "U" shape; the outer side of the holder (231) is slidably connected to the fixing belt (221); one end of the holder (231) close to the positioning block (222) is fixedly connected to the clamping strip (232); the clamping strip (233) is fixedly connected to the fixing belt (221); The length of the clamping seat (231) is 1.2 times the length of the clamping seat (231), a plurality of sequentially arranged clamping slots are provided on a side of the fixing belt (221) away from the positioning block (222), a sub-buckle (233) is fixedly connected to a side of the movable block (21) away from the positioning block (222), a female buckle (234) is fixedly connected to the inner side of the movable block (21), and the corresponding sub-buckle (233) and female buckle (234) are respectively arranged on the left and right sides of the fixing belt (221).

7. A nasogastric feeding tube fixing device according to claim 6, characterized in that: The movement trajectory of the slot of the fixing belt (221) is linear, the movement trajectories of the sub-buckle (233) and the female buckle (234) are both linear, and the movement trajectory of the slot of the fixing belt (221) intersects with the movement trajectory of the sub-buckle (233).

8. A nasogastric feeding tube fixing device according to claim 7, characterized in that: Each group of the limiting components (24) comprises a protective strip (241), a connecting strip A (242), a connecting strip B (243), a limiting pad (244) and an adjustment slot (245); the protective strip (241) is fixedly connected below the front end surface of the fixing belt (221); the connecting strip A (242) is fixedly connected below the front end surface of the protective strip (241); the connecting strip B (243) is fixedly connected above the front end surface of the fixing belt (221); and four adjustment slots (245) are provided on one side of the protective strip (241) close to the positioning block (222).

9. A nasogastric feeding tube fixing device according to claim 8, characterized in that: The connecting strip B (243) and the connecting strip A (242) are double-sided adhesive tapes.

10. A nasogastric feeding tube fixing device according to claim 8, characterized in that: The connecting strip A (242) is a Velcro sub-strip, and the connecting strip B (243) is a Velcro main strip.

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