High-flow oxygen inhalation nasal catheter assembly

Abstract

The invention discloses a high-flow oxygen inhalation nasal catheter assembly, belongs to the technical field of medical supplies, and aims to solve the problems that when the head of a patient rotates, the face of the patient is pressed by a telescopic belt, further, indentations appear on the face of the patient, and an air conveying pipeline is pulled or extruded by external force. The outer wall of the end, away from the nasal oxygen tube, of the breathing head is fixedly connected with a telescopic tube, the end, away from the breathing head, of the telescopic tube is movably connected with a fixing seat, the two side walls of the fixing seat are fixedly connected with binding bands, the fixing seat is movably connected with a limiting rod, and a limiting gear is rotationally installed in the fixing seat. According to the nasal oxygen tube, the air delivery tube can be conveniently stored, disorder and tangling of the tube are avoided, meanwhile, the nasal oxygen tube can be automatically cleaned when the nasal oxygen tube is not used, the outer ring of the nasal oxygen tube cannot be affected and polluted by external dust, the frequency of replacing the nasal oxygen tube is reduced, and the medical cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical supplies, in particular to a high-flow oxygen inhalation nasal catheter assembly. Background Art

[0002] Oxygen nasal cannula is a respiratory support technology that delivers oxygen from an oxygen generator to the patient's nasal cavity through a soft plastic cannula. It can provide additional oxygen to meet the body's needs and has the advantages of easy operation, efficient oxygen supply, and no impact on the patient's coughing and eating. It is widely used clinically in the treatment of hypoxemia, home oxygen therapy, and relief of hypoxia symptoms in high-altitude areas. However, existing oxygen nasal cannula still has certain shortcomings when used.

[0003] For example, a double-lumen ear-hanging nasal oxygen cannula with announcement number CN221731977U can adjust the angle of the face plate through the resistance shaft according to the face size of the current wearer, so that the face plate can better fit under the patient's nasal cavity, and then pull out the fixing pin to adjust the length of the telescopic belt and the earrings, and hang the earrings on the ears. This provides support, traction and fixation for the double-lumen nasal cannula on the oxygen supply cavity to be inserted into the nasal cavity. However, when used for a long time, the patient's skin is compressed, which will cause indentations and damage in the compressed area, increasing the risk of care and reducing the patient's comfort.

[0004] Therefore, a high-flow oxygen inhalation nasal cannula assembly is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-flow oxygen nasal cannula assembly to solve the problem raised in the above-mentioned background technology that when patients in the current market use oxygen nasal cannula, their skin will be indented and swollen due to long-term compression, which affects the effect of the patient's oxygen therapy.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: A high-flow oxygen inhalation nasal cannula assembly, comprising: a breathing head, a nasal oxygen cannula being provided on the outer wall of the breathing head, a telescopic tube being fixedly connected to the outer wall of the breathing head at one end away from the nasal oxygen cannula, a fixed base being movably connected to the end of the telescopic tube being away from the breathing head, straps being fixedly connected to both side walls of the fixed base, a limit rod being movably connected to the fixed base, a limit gear being rotatably installed in the fixed base, a shaft end of the limit gear extending through the fixed base and fixedly connected to the shaft tube, a toggle disk being fixedly nested and connected to the outer wall of the shaft tube, an air supply pipe being wrapped around the outer side of the shaft tube below the toggle disk, a fixed shell being fixedly connected to both side walls of the breathing head, a cleaning assembly being provided in both fixed shells, a connecting belt being movably connected to both cleaning assemblies, a first Velcro being fixedly connected to the outer wall of both connecting belts, a first air bag being fixedly connected to the side walls of the two connecting belts on opposite sides, a headband being provided below the connecting belt, a second Velcro being provided on the headband, and a second air bag being fixedly connected inside the headband.

[0007] Preferably, a compression spring is connected between the limit rod and the fixed seat, and the limit rod and the fixed seat form an elastic telescopic structure through the compression spring. One end of the limit rod extends into the fixed seat, and a slope is provided on the side wall of the extending end of the limit rod, and the slope is in contact with the limit gear, and the shaft tube on the limit gear is connected to the telescopic tube.

[0008] Preferably, a partition is fixedly connected to the breathing head, and the partition divides the breathing head into an air cavity and a liquid cavity, and the nasal oxygen tube and the telescopic tube are both connected to the air cavity.

[0009] Preferably, the cleaning assembly includes a piston cylinder, a piston plate, a piston rod, a connecting plate, a push rod, a sealing plate, a fixed rod, a connecting hole, a protrusion, a moving rod, a spiral groove, a main air bag and a winding roller. The piston cylinder is fixedly arranged in a fixed shell, and the piston cylinder is slidably connected with the piston plate. The side wall of the piston plate is fixedly connected with the piston rod, and the end of the piston rod away from the piston plate extends through the piston cylinder and is fixedly connected to the connecting plate. The push rod is fixedly connected on the connecting plate, and the end of the push rod away from the connecting plate extends through the air cavity in the breathing head and is fixedly connected to the sealing plate. The fixed rod is fixedly arranged on the side wall of the fixed shell, a connecting hole is provided in the fixed rod, a protrusion is fixedly connected to the inner wall of the connecting hole, a moving rod is provided in the connecting hole, a spiral groove is provided on the moving rod, the outer wall of the moving rod is sleeved with the main air bag, and the winding roller is fixedly connected to the moving rod on the side of the main air bag.

[0010] Preferably, the piston cylinder, piston plate and piston rod are arranged in a circular array about the center point of the fixed shell, the piston cylinder is slidably connected to the piston rod, and the water inlet end of the piston cylinder is connected to the water outlet end of the liquid cavity in the breathing head through a one-way flow pipe, the sealing plate is slidably connected to the inner wall of the breathing head, and a first spring is connected between the sealing plate and the breathing head, and the sealing plate and the breathing head form an elastic telescopic structure through the first spring, the first spring is sleeved on the outside of the push rod, and the push rod is slidably connected to the breathing head.

[0011] Preferably, the end of the protrusion away from the inner wall of the connecting hole extends into the spiral groove, and the protrusion is slidably connected to the moving rod, the side wall of the moving rod is movably connected with a support rod, the end of the support rod away from the moving rod penetrates into the fixed shell and is fixedly connected to the connecting plate, and the support rod is slidably connected to the fixed shell.

[0012] Preferably, the cleaning component also includes a moving part, cleaning cotton and a water spray pipe. The moving part is sleeved on the outside of the nasal oxygen tube. The inner wall of the moving part above the nasal oxygen tube is fixedly connected to the cleaning cotton, and the outer wall of the moving part on the side of the cleaning cotton is provided with a water spray pipe.

[0013] Preferably, a plurality of the water spray pipes are arranged in a circular array about the center point of the cleaning cotton, and the inner surface of the cleaning cotton is in contact with the outer wall of the nasal oxygen tube. The water inlet end of the water spray pipe is connected to the water outlet end of the main air bag through a one-way flow pipe, and the water inlet end of the main air bag is connected to the water outlet end of the piston cylinder through a one-way flow pipe.

[0014] Preferably, a second spring is connected between the movable part and the outer wall of the breathing head, and the movable part and the breathing head form an elastic telescopic structure through the second spring. The second spring is sleeved on the outer wall of the nasal oxygen tube, and the outer wall of the second spring is fixedly nested with a shielding cloth. The outer wall of the movable part is fixedly connected to a pull rope, and the end of the pull rope away from the movable part is wound around the outer wall of the winding roller.

[0015] Preferably, two second airbags are symmetrically arranged with respect to the headband, and the air outlet ends of the two second airbags are connected to the first airbags in a one-to-one correspondence through hoses.

[0016] Compared with the prior art, the present invention has the following advantages: the high-flow oxygen nasal cannula assembly can conveniently store the air delivery tube, avoiding confusion and entanglement of the tubes. At the same time, the nasal oxygen cannula can be self-cleaned when not in use, so that the outer ring of the nasal cannula will not be contaminated by external dust, reducing the frequency of nasal cannula replacement and lowering medical costs. The specific contents are as follows:

[0017] 1. Set a limit rod and a limit gear. Pull the limit rod outward to separate it from the limit gear. At this time, turn the dial to take out the gas tube in the stored state. After loosening the limit rod, the limit rod will be locked with the limit gear under the elastic force of the compression spring to prevent the stored gas tube from loosening, making it easier for medical staff to manage and take it.

[0018] 2. A sealing plate and a main airbag are provided. When oxygen is supplied, the oxygen in the breathing head will squeeze the sealing plate, causing the sealing plate to drive the push rod, connecting plate, piston rod and piston plate to move synchronously, and transport the disinfectant stored in the piston cylinder into the main airbag, causing the main airbag to expand and then fit against the patient's skin to support the breathing head, avoiding the risk of facial indentation after long-term use and improving the patient's comfort.

[0019] 3. It is equipped with a bump and a moving rod. When in use, the winding roller will move outward while rotating, thereby reeling in the drawstring, so that the drawstring pulls the moving part to the end of the nasal oxygen tube. When the breathing head is removed, the winding roller will reset and move, thereby squeezing the main airbag, and transporting the disinfectant in the main airbag through the pipe to the water spray pipe, and then spraying it onto the surface of the nasal oxygen tube for cleaning. The moving part will reset and move under the elastic force of the second spring, thereby driving the cleaning cotton to slide against the surface of the nasal oxygen tube, wiping off the disinfectant attached to the surface of the nasal oxygen tube, ensuring the cleanliness of the nasal oxygen tube surface and reducing the infection rate of the patient's nasal cavity during use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 This is a schematic diagram of the axonometric structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the fixing seat of the present invention;

[0023] Figure 4 This is a schematic diagram of the main cross-sectional structure of the breathing head of the present invention;

[0024] Figure 5 This is a schematic diagram of the side cross-section structure of the breathing head of the present invention;

[0025] Figure 6 For the present invention Figure 5 A in the middle is an enlarged structural diagram;

[0026] Figure 7 This is a schematic diagram of the cross-sectional structure of the breathing head of the present invention;

[0027] Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle;

[0028] Figure 9 Schematic diagram of the internal structure of the headband of the present invention.

[0029] In the figure: 1. breathing head; 2. nasal oxygen cannula; 3. telescopic tube; 4. fixing seat; 5. strap; 6. limit rod; 7. limit gear; 8. shaft tube; 9. dial; 10. air supply pipe; 11. partition; 12. fixing shell; 13. cleaning assembly; 1301. piston cylinder; 1302. piston plate; 1303. piston rod; 1304. connecting plate; 1305. push rod; 1306. blocking plate; 1307. fixing rod; 1308. connecting hole; 1309. bump; 1310. Moving rod; 1311. Spiral groove; 1312. Main airbag; 1313. Winding roller; 1314. First spring; 1315. Support rod; 1316. Moving part; 1317. Cleaning cotton; 1318. Water spray pipe; 1319. Second spring; 1320. Shading cloth; 1321. Drawstring; 14. Connecting belt; 15. First Velcro; 16. First airbag; 17. Headband; 18. Second Velcro; 19. Second airbag; 20. Compression spring. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1-9 As shown, the present invention provides a technical solution: a high-flow oxygen inhalation nasal catheter assembly, comprising: a breathing head 1, a nasal oxygen tube 2 is arranged on the outer wall of the breathing head 1, and a telescopic tube 3 is fixedly connected to the outer wall of one end of the breathing head 1 away from the nasal oxygen tube 2.

[0032] This technical solution utilizes the setting of the breathing head 1 and the nasal oxygen tube 2. When in use, the breathing head 1 is first placed on the patient's nostrils, so that the nasal oxygen tube 2 extends into the patient's respiratory tract, and then the telescopic tube 3 is connected to the shaft tube 8 so that the oxygen can smoothly enter the breathing head 1 through the telescopic tube 3, and then the nasal oxygen tube 2 delivers the oxygen to the patient's respiratory tract.

[0033] Example 2: The technical content disclosed in this embodiment is an improvement based on the above-mentioned Example 1. When using the existing oxygen nasal cannula, the face will be compressed by the elastic band, which will further lead to poor blood circulation on the face, indentations and redness and swelling in the compressed area of the skin, and the gas pipeline will be pulled or squeezed by external force during use, causing the pipeline to break or be blocked, resulting in interruption of oxygen supply. This technical solution is as follows: Figure 1-Figure 3As shown, a storage assembly of an oxygen inhalation nasal catheter assembly is disclosed, wherein the telescopic tube 3 provided therein is movably connected to a fixed seat 4 at one end away from the breathing head 1, and straps 5 are fixedly connected to the two side walls of the fixed seat 4, a limit rod 6 is movably connected to the fixed seat 4, and a limit gear 7 is rotatably installed in the fixed seat 4, and the shaft end of the limit gear 7 passes through the fixed seat 4 and is fixedly connected to the shaft tube 8, and a toggle plate 9 is fixedly nested and connected to the outer wall of the shaft tube 8, and an air supply pipe 10 is wrapped around the outer side of the shaft tube 8 below the toggle plate 9, a compression spring 20 is connected between the limit rod 6 and the fixed seat 4, and the limit rod 6 and the fixed seat 4 form an elastic telescopic structure through the compression spring 20, one end of the limit rod 6 extends into the fixed seat 4, and an inclined surface is provided on the side wall of the extending end of the limit rod 6, and the inclined surface is in contact with the limit gear 7, and the shaft tube 8 on the limit gear 7 is connected to the telescopic tube 3.

[0034] In this technical solution, Figure 3 As shown, by utilizing the setting of the limit rod 6 and the limit gear 7, when the limit rod 6 is pulled, the limit rod 6 will separate from the limit gear 7, releasing the limit on the limit gear 7, so that the gas pipe 10 of suitable length can be pulled out according to actual needs, which is convenient for users to use in different scenarios.

[0035] It uses Figure 1-Figure 3 The technical solution shown is that, first, when in use, the fixing seat 4 is placed in the specified position and fixed with the strap 5 to prevent the fixing seat 4 from shaking during use, and then the limit rod 6 is pulled so that the limit rod 6 slides along the inner wall of the fixing seat 4 while squeezing the compression spring 20 to contract, thereby separating from the limit gear 7. The wound air supply pipe 10 can be taken out by rotating the dial 9, and the air supply pipe 10 can be connected to the oxygen supply pipe of the external oxygen supply equipment. At this time, the limit rod 6 is loosened, and the limit rod 6 will be reset under the elastic force of the compression spring 20, locking the limit gear 7 to prevent the limit gear 7 from rotating. When the air supply pipe 10 needs to be stored, it is only necessary to rotate the dial 9 in the opposite direction. The dial 9 will drive the shaft tube 8 to rotate, and the shaft tube 8 will drive the limit gear 7 to reverse, so that the limit gear 7 slides against the inclined surface on the limit rod 6, thereby squeezing the limit rod 6 to reciprocate and store the air supply pipe 10.

[0036] Example 3: The technical content disclosed in this embodiment is a further improvement based on the above-mentioned Example 1 and Example 2. Since the existing nasal oxygen tube may be placed arbitrarily by the patient when temporarily stopping oxygen inhalation, which may cause contamination, in order to further solve this technical problem, this technical solution is as follows: Figure 4-Figure 9As shown, a cleaning component of an oxygen inhalation nasal catheter assembly is disclosed, wherein a fixed shell 12 is fixedly connected to both side walls of a breathing head 1, a cleaning component 13 is provided in each of the two fixed shells 12, a connecting belt 14 is movably connected to each of the two cleaning components 13, a first Velcro 15 is fixedly connected to the outer wall of each of the two connecting belts 14, a first air bag 16 is fixedly connected to the side wall of each of the opposite sides of the two connecting belts 14, a headband 17 is provided below the connecting belt 14, a second Velcro 18 is provided on the headband 17, a second air bag 19 is fixedly connected to the headband 17, a partition 11 is fixedly connected to the breathing head 1, the partition 11 divides the breathing head 1 into an air cavity and a liquid cavity, the nasal oxygen tube 2 and the telescopic tube 3 are both connected to the air cavity, the cleaning component 13 includes a piston cylinder 1301, 1304, a push rod 1305, a blocking plate 1306, a fixed rod 1307, a connecting hole 1308, a bump 1309, a moving rod 1310, a spiral groove 1311, a main air bag 1312 and a winding roller 1313. The piston cylinder 1301 is fixedly arranged in the fixed shell 12. The piston cylinder 1301 is slidably connected with the piston plate 1302. The side wall of the piston plate 1302 is fixedly connected with the piston rod 1303. The end of the piston rod 1303 away from the piston plate 1302 extends through the piston cylinder 1301 and is fixedly connected to the connecting plate 1304. The push rod 1305 is fixedly connected to the connecting plate 1304. The end of the push rod 1305 away from the connecting plate 1304 extends through the air bag in the breathing head 1 The cavity is fixedly connected with the sealing plate 1306, the fixed rod 1307 is fixedly arranged on the side wall of the fixed shell 12, a connecting hole 1308 is provided in the fixed rod 1307, the inner wall of the connecting hole 1308 is fixedly connected with a protrusion 1309, a moving rod 1310 is provided in the connecting hole 1308, a spiral groove 1311 is provided on the moving rod 1310, the outer wall of the moving rod 1310 is sleeved with a main air bag 1312, and a winding roller 1313 is fixedly connected to the moving rod 1310 on the side of the main air bag 1312, the piston cylinder 1301, the piston sheet 1302 and the piston rod 1303 are all arranged in a circular array about the center point of the fixed shell 12, the piston cylinder 1301 is slidably connected to the piston rod 1303, and the water inlet end of the piston cylinder 1301 is connected through a one-way flow. The pipeline is connected to the water outlet end of the liquid cavity in the breathing head 1, the blocking plate 1306 is slidably connected to the inner wall of the breathing head 1, and a first spring 1314 is connected between the blocking plate 1306 and the breathing head 1, and the blocking plate 1306 and the breathing head 1 form an elastic telescopic structure through the first spring 1314, the first spring 1314 is sleeved on the outside of the push rod 1305, and the push rod 1305 is slidably connected to the breathing head 1, the end of the protrusion 1309 away from the inner wall of the communicating hole 1308 extends into the spiral groove 1311, and the protrusion 1309 is slidably connected to the moving rod 1310, and the side wall of the moving rod 1310 is movably connected with a support rod 1315, and the end of the support rod 1315 away from the moving rod 1310 penetrates and extends into the fixed shell 12 and is fixedly connected to the connecting plate 1304.The support rod 1315 is slidably connected to the fixed shell 12, and the cleaning component 13 also includes a moving part 1316, a cleaning cotton 1317 and a water spray pipe 1318. The moving part 1316 is sleeved on the outside of the nasal oxygen tube 2, and the inner wall of the moving part 1316 above the nasal oxygen tube 2 is fixedly connected with the cleaning cotton 1317. The outer wall of the moving part 1316 on the side of the cleaning cotton 1317 is provided with a water spray pipe 1318. There are multiple water spray pipes 1318 in a circular array about the center point of the cleaning cotton 1317, and the inner surface of the cleaning cotton 1317 is in contact with the outer wall of the nasal oxygen tube 2. The water inlet end of the water spray pipe 1318 is connected to the water outlet end of the main air bag 1312 through a one-way flow pipe, and the water inlet end of the main air bag 1312 is connected to the water outlet end of the main air bag 1312 through a one-way flow pipe. The pipe is connected to the water outlet end of the piston cylinder 1301. A second spring 1319 is connected between the movable part 1316 and the outer wall of the breathing head 1. The movable part 1316 and the breathing head 1 form an elastic telescopic structure through the second spring 1319. The second spring 1319 is sleeved on the outer wall of the nasal oxygen tube 2, and the outer wall of the second spring 1319 is fixedly nested with a shielding cloth 1320. The outer wall of the movable part 1316 is fixedly connected to a pull rope 1321, and the end of the pull rope 1321 away from the movable part 1316 is wound around the outer wall of the winding roller 1313. Two second airbags 19 are symmetrically arranged about the headband 17, and the air outlet ends of the two second airbags 19 are connected to the first airbag 16 one-to-one through a hose.

[0037] In this technical solution, Figure 5 As shown, by using the arrangement of the first airbag 16 and the second airbag 19, when the patient's head is in use, the second airbag 19 will be squeezed when it rotates, causing the second airbag 19 to deform, thereby transporting the gas stored therein to the first airbag 16, causing the first airbag 16 to expand, preventing indentations caused by long-term pressure, and improving the comfort and adaptability of the equipment.

[0038] It uses Figure 4 and Figure 6-Figure 9 In the technical solution shown, in the initial state, the blocking plate 1306 blocks the nasal oxygen cannula 2. Disinfectant is stored in the liquid cavity of the breathing head 1 and inside the piston cylinder 1301. When oxygen is supplied, the oxygen entering the breathing head 1 presses the blocking plate 1306, causing the blocking plate 1306 to slide to both sides along the inner wall of the breathing head 1, thereby opening the nasal oxygen cannula 2 and allowing oxygen to enter the patient's nasal cavity through the nasal oxygen cannula 2.

[0039] The blocking plate 1306 will squeeze the first spring 1314 to contract during the movement, and then the blocking plate 1306 will push the push rod 1305 to move, so that the push rod 1305 drives the connecting plate 1304 to move, and the connecting plate 1304 will drive the piston rod 1303 to move, so that the piston rod 1303 pushes the piston plate 1302 to slide in the piston cylinder 1301, and the disinfectant stored in the piston cylinder 1301 is transported to the main airbag 1312 through the one-way flow pipe, so that the main airbag 1312 expands. At the same time, the connecting plate 1304 will drive the support rod 1315 to move, so that the support rod 1315 pushes the moving rod 131 0 slides along the inner wall of the fixed rod 1307. At this time, the protrusion 1309 slides along the spiral groove 1311, thereby driving the movable rod 1310 to rotate. The movable rod 1310 drives the winding roller 1313 to rotate. The winding roller 1313 reels the pull rope 1321, and then the pull rope 1321 pulls the movable member 1316 to move. The movable member 1316 drives the cleaning cotton 1317 and the water spray pipe 1318 to move synchronously. The movable member 1316 squeezes the second spring 1319, and the second spring 1319 drives the shielding cloth 1320 to retract. At this time, the user can insert the nasal oxygen cannula 2 into the nasal cavity for use.

[0040] When the breathing head 1 is removed, the external feeding device is turned off, and the blocking plate 1306 will reset and move under the elastic force of the first spring 1314, thereby blocking the nasal oxygen tube 2 to prevent external dust from entering the breathing head 1 through the channel of the nasal oxygen tube 2. At the same time, the blocking plate 1306 will drive the push rod 1305, the connecting plate 1304, the piston rod 1303 and the piston piece 1302 to move, so that the piston cylinder 1301 is opposite to the nasal oxygen tube 2 through the one-way flow pipe. The disinfectant in the liquid chamber of the breathing head 1 is sucked out, and then the connecting plate 1304 pulls the support rod 1315, which drives the movable rod 1310 to reset and move. The movable rod 1310 drives the winding roller 1313 to move, so that the winding roller 1313 squeezes the main airbag 1312, and the disinfectant in the main airbag 1312 is transported to the water spray pipe 1318 through the one-way flow pipe, and then sprayed onto the outer surface of the nasal oxygen tube 2 by the water spray pipe 1318;

[0041] During the reset movement of the moving rod 1310, the protrusion 1309 slides along the spiral groove 1311, causing the moving rod 1310 to drive the winding roller 1313 to reverse, causing the wound pull rope 1321 to become loose, thereby causing the moving member 1316 to reset and move under the elastic force of the second spring 1319. The moving member 1316 drives the cleaning cotton 1317 to move, so that the cleaning cotton 1317 wipes the disinfectant attached to the surface of the nasal oxygen tube 2, and the shielding cloth 1320 shields the nasal oxygen tube 2 to prevent external dust from adhering to the nasal oxygen tube 2.

[0042] When fixing the breathing head 1, first put the headband 17 on the patient's head so that the second airbag 19 is located at the bottom, then pull open the second Velcro 18, and at the same time pass the connecting belt 14 between the second Velcro 18 and the headband 17, then adjust the tightness of the connecting belt 14, and press the second Velcro 18 so that the second Velcro 18 adheres to the headband 17 and the first Velcro 15. When the patient turns his head to the left, the skin on the left side will fit with the connecting belt 14 on the left, and the patient's head will squeeze the second airbag 19 on the left, causing the second airbag 19 to deform, thereby transporting the gas stored inside it to the first airbag 16 on the left, causing the first airbag 16 to expand and then fit with the patient's skin to prevent indentations. The same applies when the patient turns his head to the left.

[0043] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-flow oxygen inhalation nasal cannula assembly, characterized in that: include: A breathing head (1) is provided with a nasal oxygen tube (2) on the outer wall of the breathing head (1), a telescopic tube (3) is fixedly connected to the outer wall of one end of the breathing head (1) away from the nasal oxygen tube (2), and a fixed seat (4) is movably connected to the end of the telescopic tube (3) away from the breathing head (1), and a strap (5) is fixedly connected to both side walls of the fixed seat (4), and a limit rod (6) is movably connected to the fixed seat (4), and a limit gear (7) is rotatably installed in the fixed seat (4), and the shaft end of the limit gear (7) extends through the fixed seat (4) and is fixedly connected to the shaft tube (8), and a toggle plate (9) is fixedly nested and connected to the outer wall of the shaft tube (8), and the shaft below the toggle plate (9) is fixedly connected to the outer wall of the shaft tube (8). An air delivery pipe (10) is wound around the outside of the tube (8), a fixed shell (12) is fixedly connected to both side walls of the breathing head (1), a cleaning assembly (13) is provided in each of the two fixed shells (12), a connecting belt (14) is movably connected to each of the two cleaning assemblies (13), a first Velcro (15) is fixedly connected to the outer walls of the two connecting belts (14), a first air bag (16) is fixedly connected to the side walls of the opposite sides of the two connecting belts (14), a headband (17) is provided below the connecting belt (14), a second Velcro (18) is provided on the headband (17), and a second air bag (19) is fixedly connected inside the headband (17).

2. The high-flow oxygen inhalation nasal cannula assembly according to claim 1, characterized in that: A compression spring (20) is connected between the limiting rod (6) and the fixing seat (4), and the limiting rod (6) and the fixing seat (4) form an elastic telescopic structure through the compression spring (20). One end of the limiting rod (6) extends into the fixing seat (4), and a slope is provided on the side wall of the extending end of the limiting rod (6), and the slope is in contact with the limiting gear (7). The shaft tube (8) on the limiting gear (7) is connected to the telescopic tube (3).

3. The high-flow oxygen inhalation nasal cannula assembly according to claim 1, characterized in that: A partition (11) is fixedly connected to the breathing head (1), and the partition (11) divides the breathing head (1) into an air cavity and a liquid cavity. The nasal oxygen tube (2) and the telescopic tube (3) are both connected to the air cavity.

4. The high-flow oxygen inhalation nasal cannula assembly according to claim 1, characterized in that: The cleaning assembly (13) comprises a piston cylinder (1301), a piston plate (1302), a piston rod (1303), a connecting plate (1304), a push rod (1305), a blocking plate (1306), a fixed rod (1307), a communicating hole (1308), a protrusion (1309), a moving rod (1310), a spiral groove (1311), a main air bag (1312) and a winding roller (1313). The piston cylinder (1301) is fixedly arranged in the fixed shell (12). The piston cylinder (1301) is slidably connected with the piston plate (1302). The side wall of the piston plate (1302) is fixedly connected with the piston rod (1303). The end of the piston rod (1303) away from the piston plate (1302) extends through the piston cylinder (1301) and is fixedly connected to the connecting plate (1304). A push rod (1305) is fixedly connected to the connecting plate (1304), and one end of the push rod (1305) away from the connecting plate (1304) extends through the air cavity in the breathing head (1) and is fixedly connected to the blocking plate (1306). The fixed rod (1307) is fixedly arranged on the side wall of the fixed shell (12), and a connecting hole (1308) is provided in the fixed rod (1307). A protrusion (1309) is fixedly connected to the inner wall of the connecting hole (1308). A moving rod (1310) is provided in the connecting hole (1308), and a spiral groove (1311) is provided on the moving rod (1310). The outer wall of the moving rod (1310) is provided with a main air bag (1312), and a winding roller (1313) is fixedly connected to the moving rod (1310) on the side of the main air bag (1312).

5. The high-flow oxygen inhalation nasal cannula assembly according to claim 4, characterized in that: The piston cylinder (1301), the piston plate (1302) and the piston rod (1303) are all arranged in a circular array around the center point of the fixed shell (12). The piston cylinder (1301) is slidably connected to the piston rod (1303), and the water inlet end of the piston cylinder (1301) is connected to the water outlet end of the liquid cavity in the breathing head (1) through a one-way flow pipe. The blocking plate (1306) is slidably connected to the inner wall of the breathing head (1), and a first spring (1314) is connected between the blocking plate (1306) and the breathing head (1), and the blocking plate (1306) and the breathing head (1) form an elastic telescopic structure through the first spring (1314). The first spring (1314) is sleeved on the outside of the push rod (1305), and the push rod (1305) is slidably connected to the breathing head (1).

6. The high-flow oxygen inhalation nasal cannula assembly according to claim 4, characterized in that: One end of the protrusion (1309) away from the inner wall of the connecting hole (1308) extends into the spiral groove (1311), and the protrusion (1309) is slidably connected to the moving rod (1310). The side wall of the moving rod (1310) is movably connected with a support rod (1315). One end of the support rod (1315) away from the moving rod (1310) penetrates and extends into the fixed shell (12) and is fixedly connected to the connecting plate (1304), and the support rod (1315) is slidably connected to the fixed shell (12).

7. The high-flow oxygen inhalation nasal cannula assembly according to claim 1, characterized in that: The cleaning component (13) further comprises a moving part (1316), cleaning cotton (1317) and a water spray pipe (1318); the moving part (1316) is sleeved on the outside of the nasal oxygen tube (2); the cleaning cotton (1317) is fixedly connected to the inner wall of the moving part (1316) above the nasal oxygen tube (2); and the water spray pipe (1318) is provided on the outer wall of the moving part (1316) on the side of the cleaning cotton (1317).

8. The high-flow oxygen inhalation nasal cannula assembly according to claim 7, characterized in that: The water spray pipes (1318) are arranged in a circular array around the center point of the cleaning cotton (1317), and the inner surface of the cleaning cotton (1317) is in contact with the outer wall of the nasal oxygen tube (2). The water inlet end of the water spray pipe (1318) is connected to the water outlet end of the main air bag (1312) through a one-way flow pipe, and the water inlet end of the main air bag (1312) is connected to the water outlet end of the piston cylinder (1301) through a one-way flow pipe.

9. The high-flow oxygen inhalation nasal cannula assembly according to claim 8, characterized in that: A second spring (1319) is connected between the movable part (1316) and the outer wall of the breathing head (1), and the movable part (1316) and the breathing head (1) form an elastic telescopic structure through the second spring (1319), the second spring (1319) is sleeved on the outer wall of the nasal oxygen tube (2), and the outer wall of the second spring (1319) is fixedly nested and connected with a shielding cloth (1320), the outer wall of the movable part (1316) is fixedly connected with a pull rope (1321), and the end of the pull rope (1321) away from the movable part (1316) is wound around the outer wall of the winding roller (1313).

10. The high-flow oxygen inhalation nasal cannula assembly according to claim 1, characterized in that: Two second air bags (19) are symmetrically arranged with respect to the headband (17), and the air outlet ends of the two second air bags (19) are connected to the first air bags (16) in a one-to-one correspondence through hoses.

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