Multifunctional anesthesia nasal mask

Abstract

The invention relates to the technical field of anesthesia nasal masks, in particular to a multifunctional anesthesia nasal mask which comprises a nasal mask body. A headband; a lower jaw belt; the supporting assembly is arranged on the lower jaw belt; the lacing assembly comprises a lacing cylinder; the guide cylinder is fixedly mounted in the center of the inner bottom wall of the tightening cylinder; the rotating shaft is rotationally mounted in the guide cylinder; and the torsional spring is fixedly mounted between the rotating shaft and the guide cylinder. Compared with the prior art, by arranging the lacing cylinder and the torsional spring, a medical worker can simply achieve installation of the nose mask without lifting the head of a patient, the head band and the lower jaw band are automatically laced through the lacing cylinder, the wearing process is greatly simplified, the head band and the lower jaw band are fixed to the rotating shaft after being folded, the two sides can be rolled at the same time, and the operation is convenient. The lacing cylinder is relatively fixed to the side face of the patient, the wearing comfort of the patient can be guaranteed while use is convenient, the nose mask is more tightly attached to the face through the arrangement of the sliding rail and the air bag, and the sealing performance during use is guaranteed to the maximum extent.

Description

Technical Field

[0001] The invention relates to the technical field of anesthesia nasal masks, in particular to a multifunctional anesthesia nasal mask. Background Art

[0002] Anesthesia nasal mask is a medical device commonly used in anesthesiology. When used, it is placed on the patient's nasal cavity and upper lip to form a seal for ventilation. By connecting to a ventilator or anesthesia machine, oxygen or anesthetic gas is delivered to the patient's lungs to maintain the patient's normal respiratory function. During anesthesia, the nasal mask can ensure that the patient gets enough oxygen to maintain the patient's normal respiratory function. In addition, the nasal mask is also used in the fields of intensive care and respiratory therapy, such as the treatment of sleep apnea syndrome.

[0003] After searching, the Chinese utility model patent with publication number CN221470645U discloses a multifunctional anesthesia nasal mask, including an air inlet pipe, a ventilation cavity and a nose bridge. The outer surface of the ventilation cavity is set as a nasal veneer and an upper lip veneer, and a vent plug is provided on the nasal veneer; its beneficial effect is that a through liquid collection tube is provided to collect and remove nasal fluid and nasal mucus; a silicone pad and a silicone sleeve pad are provided to make the patient feel comfortable. However, when this solution is actually used, it still has the following shortcomings:

[0004] When in use, the patient is often in a lying position. At this time, when fixing the nasal mask with a headband, the medical staff needs to lift the patient's head to operate, and the patient is likely to press the headband after wearing it, making it difficult to further adjust the position and tightness of the nasal mask. In addition, the existing nasal mask cannot completely fit the patient's face when worn, so the nasal mask needs to be manually pressed when releasing the anesthetic, which will not only cause discomfort to the patient, but also cause the patient to be nervous. In addition, under the stimulation of the smell of the anesthetic, in severe cases, the patient resists wearing the nasal mask and moves his face, causing the anesthetic to diffuse from the nasal mask. If inhaled by the medical staff, it will lead to serious consequences.

[0005] Therefore, the present application provides a multifunctional anesthesia nasal mask to meet the requirements of easy wearing and adjustment of the nasal mask and fit the face. Summary of the invention

[0006] In view of this, the purpose of the present invention is to provide a multifunctional anesthesia nasal mask to solve the problems of the nasal mask being inconvenient to wear and adjust and requiring pressing to keep it completely in fit with the face.

[0007] Based on the above purpose, the present invention provides a multifunctional anesthesia nasal mask, comprising:

[0008] Nasal mask;

[0009] A headband, arranged at the upper end of the side wall of the nasal mask;

[0010] A chin strap, arranged at the lower end of the side wall of the nasal mask;

[0011] Two connecting components, respectively arranged between the headband and the nose mask and between the chinband and the nose mask;

[0012] Two tightening components, respectively arranged on the headband and the chinband;

[0013] A support assembly, disposed on the chin strap;

[0014] The tightening assembly comprises:

[0015] tightening tube;

[0016] Two through holes are symmetrically arranged on the tightening tube;

[0017] A guide cylinder, fixedly mounted at the center of the inner bottom wall of the tightening cylinder;

[0018] A rotating shaft, rotatably mounted in the guide cylinder;

[0019] A torsion spring, fixedly mounted between the rotating shaft and the guide cylinder;

[0020] A fixing ring, fixedly mounted in the tightening cylinder at one end away from the guide cylinder;

[0021] The headband and the chin strap are folded in half and the folded portion is fixedly mounted on the rotating shaft. Both ends of the headband and the chin strap pass through the through hole and extend out of the tightening tube.

[0022] Preferably, a limit assembly is provided on the fixing ring, and the limit assembly comprises:

[0023] A slider, slidably mounted on an end of the tightening cylinder away from the guide cylinder;

[0024] A ratchet wheel fixedly mounted on one end of the rotating shaft extending out of the fixing ring;

[0025] A ratchet pawl is rotatably mounted on the fixing ring and meshes with the ratchet wheel;

[0026] A spring piece, fixedly mounted on the fixing ring and adapted to the pawl;

[0027] A pusher pawl, fixedly mounted on the other end of the pawl away from the ratchet wheel;

[0028] A triangular block is fixedly mounted on one end of the slider close to the ratchet and is adapted to the pusher claw;

[0029] A spring is slidably mounted between the slider and the ratchet.

[0030] Preferably, the connection assembly comprises:

[0031] Two fixing cylinders are symmetrically fixedly mounted on the side walls of the nasal mask;

[0032] Two rotating disks are rotatably mounted in the fixed cylinder;

[0033] Two guide grooves are respectively formed on the inner side walls of the two fixing tubes;

[0034] Two guide rings, respectively fixedly mounted on the two rotating disks and adapted to the guide grooves;

[0035] Wherein, both ends of the headband and the chinband are fixedly connected to the rotating disk.

[0036] Preferably, a slide rail is fixedly installed at the bottom of the nose mask, an air bag is arranged inside the slide rail, a fixed edge is fixedly installed on the outer wall of the air bag, and the fixed edge is fixedly connected to the bottom of the inner wall of the slide rail away from the center of the nose mask.

[0037] Preferably, the slide rail is made of a transparent material, and the airbag is dark green.

[0038] Preferably, a shaping pad sleeved on the airbag is fixedly mounted on the slide rail, and the shaping pad is arranged to semi-surround the airbag.

[0039] Preferably, the shaping pad is made of slow-rebound sponge.

[0040] Preferably, the support assembly comprises:

[0041] A sliding sleeve, which is slidably mounted on the chin strap;

[0042] A connecting block, arranged on the sliding sleeve;

[0043] The supporting part is fixedly mounted on an end of the connecting block away from the sliding sleeve.

[0044] Preferably, the support portion is provided with three sizes of large, medium and small, the sliding sleeve is fixedly mounted with a Velcro on surface A, and the end of the connecting block away from the support portion is fixedly mounted with a Velcro on surface B that matches the Velcro on surface A.

[0045] Preferably, the headband and the chin strap are made of low elasticity material.

[0046] Beneficial effects of the present invention:

[0047] 1. This multifunctional anesthesia nasal mask, by setting a tightening tube and a torsion spring, medical staff can simply install the nasal mask without lifting the patient's head. The headband and chin strap are automatically tightened by the tightening tube, and no additional operation is required to adjust the fixing belt, which greatly simplifies the wearing process. The headband and chin strap are folded in half and fixed on the rotating shaft, and both sides can be rolled up at the same time to ensure that the tightening tube is relatively fixed on the patient's side, which is convenient to use and can ensure the patient's wearing comfort.

[0048] 2. This multifunctional anesthesia nasal mask, by setting a ratchet and pawl, allows the headband and chin strap to be automatically tightened and locked to prevent the fixing strap from loosening due to patient activity, further improving the stability and safety of the nasal mask. The rotation of the rotating disk relative to the fixing tube can adjust the fit of the headband and chin strap to the skin, improve wearing comfort, and enhance the fixing effect of the nasal mask.

[0049] 3. This multifunctional anesthesia nasal mask is equipped with a slide rail and an air bag. According to the different pressures on different parts, the air bag can partially slide in along the slide rail, making the nasal mask fit more closely to the face and effectively preventing the leakage of anesthetics. The transparent slide rail design makes it easy for medical staff to observe the position of the air bag, thereby judging the degree of compression of the nasal mask and adjusting the tightness of the mask. The shaping pad can deform according to the curvature of the patient's face to ensure the closure during use to the greatest extent.

[0050] 4. This multifunctional anesthesia nasal mask, by providing a support part, can adjust the position of the sliding sleeve by sliding, so that the support part is engaged between the patient's lower jaw and neck, assisting the patient to maintain a posture of lifting the lower jaw, helping to ensure the patient's oxygen supply, protecting the patient's health, and improving the overall safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0053] Figure 2 It is a schematic diagram of the structure of the tightening tube of the present invention;

[0054] Figure 3 This is a schematic diagram of the explosion structure at the rotating shaft of the present invention;

[0055] Figure 4 It is a schematic diagram of the explosion structure of the limiting assembly of the present invention;

[0056] Figure 5 It is a structural schematic diagram of the connection assembly of the present invention;

[0057] Figure 6 is a schematic cross-sectional structural diagram of a nasal mask of the present invention;

[0058] Figure 7 This is a schematic diagram of the support assembly structure of the present invention;

[0059] Figure 8 For the present invention Figure 7 The enlarged structural diagram at A in the middle;

[0060] Fig. 9 It is a structural schematic diagram of the headband installation method of the present invention.

[0061] The markings in the figure are:

[0062] 1. Nose mask; 2. Headband; 21. Chin strap; 3. Tightening tube; 31. Through hole; 32. Guide tube; 33. Rotating shaft; 34. Torsion spring; 35. Fixed ring; 36. Slider; 4. Ratchet; 41. Ratchet; 42. Shrapnel; 43. Triangular block; 44. Spring; 45. Pusher; 5. Fixed tube; 51. Rotating disk; 52. Guide groove; 53. Guide ring; 6. Slide rail; 61. Airbag; 62. Fixed edge; 7. Shaping pad; 8. Sliding sleeve; 81. Connecting block; 82. Support part. DETAILED DESCRIPTION

[0063] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0064] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0065] like Figures 1 to 9As shown, the multifunctional anesthesia nasal mask comprises: a nasal mask 1; a headband 2, arranged at the upper end of the side wall of the nasal mask 1; a chin strap 21, arranged at the lower end of the side wall of the nasal mask 1; two connecting components, respectively arranged between the headband 2 and the nasal mask 1 and between the chin strap 21 and the nasal mask 1; two tightening components, respectively arranged on the headband 2 and the chin strap 21; a supporting component, arranged on the chin strap 21; the tightening component comprises: a tightening cylinder 3; two through holes 31, symmetrically opened on the tightening cylinder 3; a guide cylinder 32, The headband 2 and the chin strap 21 are fixedly mounted at the center of the inner bottom wall of the tightening cylinder 3; the rotating shaft 33 is rotatably mounted in the guide cylinder 32; the torsion spring 34 is fixedly mounted between the rotating shaft 33 and the guide cylinder 32; the fixing ring 35 is fixedly mounted in the tightening cylinder 3 at one end away from the guide cylinder 32; wherein the headband 2 and the chin strap 21 are folded in half and the folded part is fixedly mounted on the rotating shaft 33, and both ends of the headband 2 and the chin strap 21 pass through the through hole 31 and extend out of the tightening cylinder 3; the headband 2 and the chin strap 21 are made of low elastic material;

[0066] When in use, the medical staff directly buckles the nasal mask 1 on the patient's face, supports the nasal mask 1 with one hand, and pulls the tightening tube 3 outward with the other hand, so that the headband 2 is pulled out of the tightening tube 3 and drives the rotating shaft 33 and the torsion spring 34 to rotate. After the headband 2 passes through the top of the patient's head, the tightening tube 3 is gradually loosened. Under the action of the torsion spring 34, the rotating shaft 33 automatically drives the headband 2 folded in half and fixed thereon to be rolled up into the tightening tube 3, and finally tightened on the patient's head. Then, the same action is taken for the chin strap 21 to tighten the patient's lower jaw, thereby fixing and pressing the nasal mask 1. The chin strap 21 fixes the nasal mask 1, so that the nasal mask 1 can be easily installed without lifting the patient's head, and the operation is convenient. The tightening tube 3 can automatically tighten the headband 2 and the chin strap 21, so that the medical staff does not need to perform additional operations to adjust the fixing belts, simplifying the wearing process. The headband 2 and the chin strap 21 are folded in half and fixed on the rotating shaft 33, so that when rolling up and tightening, both sides can be rolled up at the same time, thereby ensuring that the position of the tightening tube 3 is relatively fixed. It is set on the side of the patient, which is convenient to use and will not move to the bottom of the patient's head due to rolling up, causing the patient to feel a foreign body.

[0067] like Figure 4 As shown, a limit assembly is provided on the fixing ring 35, and the limit assembly includes: a slider 36, which is slidably mounted on the end of the tightening cylinder 3 away from the guide cylinder 32; a ratchet 4, which is fixedly mounted on the end of the rotating shaft 33 extending out of the fixing ring 35; a pawl 41, which is rotatably mounted on the fixing ring 35 and meshes with the ratchet 4; a spring 42, which is fixedly mounted on the fixing ring 35 and matches the pawl 41; a pusher pawl 45, which is fixedly mounted on the other end of the pawl 41 away from the ratchet 4; a triangular block 43, which is fixedly mounted on the end of the slider 36 close to the ratchet 4 and matches the pusher pawl 45; a spring 44, which is slidably mounted between the slider 36 and the ratchet 4;

[0068] After setting the limit assembly, when using it, first press the slider 36. When the slider 36 slides downward, the triangular block 43 squeezes the pawl 45, causing the pawl 41 to rotate and compress the spring piece 42, while releasing the ratchet 4. At this time, the tightening tube 3 can be pulled to stretch the headband 2 and the chin strap 21 to a sufficient length, and then put on the patient's head and release the slider 36. Under the action of the spring 44, the slider 36 is reset, driving the triangular block 43 to slide out. At this time, the spring piece 42 presses the pawl 41 onto the ratchet 4. At this time, it is tightened under the action of the torsion spring 34 and the ratchet 4 is not restricted by the pawl 41 when it rotates in the opposite direction. After tightening, due to the action of the ratchet 4 and the pawl 41, it will not be loosened due to the patient's activities, thereby ensuring effective fixation and compression of the nasal mask 1.

[0069] like Figure 5 As shown, the connection assembly includes: two fixed cylinders 5, symmetrically fixedly mounted on the side walls of the nose mask 1; two rotating disks 51, rotatably mounted in the fixed cylinders 5; two guide grooves 52, respectively opened on the inner side walls of the two fixed cylinders 5; two guide rings 53, respectively fixedly mounted on the two rotating disks 51 and adapted to the guide grooves 52; wherein both ends of the headband 2 and the chinband 21 are fixedly connected to the rotating disks 51;

[0070] As for the inclined angle between the headband 2 and the chin strap 21 and the nasal mask 1 when fixed, the fitting degree of the headband 2 and the chin strap 21 to the skin can be improved by rotating the rotating disk 51 relative to the fixing tube 5, making it more comfortable to wear and effectively improving the fixing effect of the nasal mask 1.

[0071] like Figure 6 As shown, a slide rail 6 is fixedly installed at the bottom of the nose mask 1, an air bag 61 is arranged inside the slide rail 6, a fixed edge 62 is fixedly installed on the outer wall of the air bag 61, and the fixed edge 62 is fixedly connected to the bottom of the inner wall of the slide rail 6 away from the center of the nose mask 1; the slide rail 6 is made of transparent material, and the air bag 61 is set to be dark green; a shaping pad 7 sleeved on the air bag 61 is fixedly installed on the slide rail 6, and the shaping pad 7 is set to semi-enclose the air bag 61; the shaping pad 7 is made of slow rebound sponge;

[0072] When the nasal mask 1 is buckled on the patient's face, the airbag 61 can partially slide into the slide rail 6 along the slide rail 6 according to the different pressures on different parts of the face, and the outer edge of the airbag 6 is fixed to the slide rail 6, so that the nasal mask 1 fits more closely to the face, and the sealing of the nasal mask 1 is better, which can effectively prevent the leakage of anesthetic. In addition, by observing the position of the airbag 61 through the transparent slide rail 6, the degree of compression of the nasal mask 1 can be judged, which is convenient for medical staff to adjust the tightness of the wearer by reference to the wearing tightness. The shaping pad 7 semi-surrounds the airbag 61, which can meet the need of fitting with the face without affecting the sliding deformation of the airbag 61. The slow rebound sponge can be deformed according to the curvature of the patient's face, fit the face to the greatest extent, and ensure the sealing during use.

[0073] like Figure 7 and Figure 8 As shown, the support assembly includes: a sliding sleeve 8, which is slidably mounted on the chin strap 21; a connecting block 81, which is arranged on the sliding sleeve 8; a supporting portion 82, which is fixedly mounted on an end of the connecting block 81 away from the sliding sleeve 8; the supporting portion 82 is provided with three sizes: large, medium and small, and a Velcro A is fixedly mounted on the sliding sleeve 8, and a Velcro B that matches the Velcro A is fixedly mounted on an end of the connecting block 81 away from the supporting portion 82;

[0074] During surgery, it is often necessary to supply oxygen to the patient through the nasal mask 1. At this time, the patient's lower jaw needs to be lifted to make breathing smoother. After the sliding sleeve 8 is slid to adjust the position, the support part 82 can be engaged between the patient's lower jaw and neck to assist the patient in maintaining the posture of lifting the lower jaw, which helps to ensure the patient's oxygen supply and protect the patient's health. The detachable and replaceable support part 82 can adapt to patients of different ages and body shapes, thereby improving the practicality and applicability of the product.

[0075] The technical solution provided by the present invention is that when in use, the medical staff directly buckles the nasal mask 1 on the patient's face, supports the nasal mask 1 with one hand, and pulls the tightening tube 3 outward with the other hand, so that the headband 2 is pulled out from the tightening tube 3 and drives the rotating shaft 33 and the torsion spring 34 to rotate, and then the headband 2 is passed through the top of the patient's head and the tightening tube 3 is gradually loosened. Under the action of the torsion spring 34, the rotating shaft 33 automatically drives the headband 2 folded in half and fixed thereon to be rolled up into the tightening tube 3, and finally tightened on the patient's head, and then the same action is taken for the chin strap 21 to tighten the patient's lower jaw, thereby fixing and pressing the nasal mask 1. The nasal mask 1 is fixed by the head strap 2 and the chin strap 21, so that the nasal mask 1 can be easily installed without lifting the patient's head, and the operation is convenient. The tightening tube 3 can automatically tighten the head strap 2 and the chin strap 21, so that the medical staff does not need to perform additional operations to adjust the fixing straps, simplifying the wearing process. The head strap 2 and the chin strap 21 are folded in half and fixed on the rotating shaft 33, so that when rolling up and tightening, both sides can be rolled up at the same time, thereby ensuring that the position of the tightening tube 3 is relatively fixed. It is set on the side of the patient, which is convenient to use and will not move to the bottom of the patient's head due to rolling up, causing the patient to feel a foreign body.

[0076] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0077] Therefore, any omission, modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Multifunctional anesthesia nasal mask, characterized in that: include: Nasal mask (1); A headband (2) is arranged on the upper end of the side wall of the nose mask (1); A chin strap (21) is arranged at the lower end of the side wall of the nose mask (1); Two connecting components, respectively arranged between the headband (2) and the nose mask (1) and between the chinband (21) and the nose mask (1); Two tightening components, respectively arranged on the headband (2) and the chinband (21); A support assembly, arranged on the chin strap (21); The tightening assembly comprises: A tightening tube (3); Two through holes (31) are symmetrically arranged on the tightening tube (3); A guide cylinder (32) is fixedly mounted at the center of the inner bottom wall of the tightening cylinder (3); A rotating shaft (33) rotatably mounted in the guide cylinder (32); A torsion spring (34) is fixedly mounted between the rotating shaft (33) and the guide cylinder (32); A fixing ring (35) fixedly mounted in the tightening cylinder (3) at one end away from the guide cylinder (32); The headband (2) and the chin strap (21) are folded in half and the folded portion is fixedly mounted on the rotating shaft (33); both ends of the headband (2) and the chin strap (21) pass through the through hole (31) and extend out of the tightening tube (3).

2. The multifunctional anesthesia nasal mask according to claim 1, characterized in that: The fixing ring (35) is provided with a limit assembly, and the limit assembly comprises: A slider (36) is slidably mounted on an end of the tightening cylinder (3) away from the guide cylinder (32); A ratchet (4) fixedly mounted on one end of the rotating shaft (33) extending out of the fixing ring (35); A ratchet pawl (41) is rotatably mounted on the fixing ring (35) and meshes with the ratchet wheel (4); A spring piece (42) fixedly mounted on the fixing ring (35) and adapted to the ratchet pawl (41); A pusher claw (45) is fixedly mounted on the other end of the pawl (41) away from the ratchet wheel (4); A triangular block (43) is fixedly mounted on one end of the slider (36) close to the ratchet (4) and is adapted to the pusher claw (45); A spring (44) is slidably mounted between the slider (36) and the ratchet (4).

3. The multifunctional anesthesia nasal mask according to claim 1, characterized in that: The connection component comprises: Two fixing cylinders (5) are symmetrically fixedly mounted on the side walls of the nose mask (1); Two rotating disks (51) rotatably mounted in the fixed cylinder (5); Two guide grooves (52) are respectively formed on the inner side walls of the two fixing cylinders (5); Two guide rings (53) are respectively fixedly mounted on the two rotating disks (51) and are adapted to the guide grooves (52); Wherein, both ends of the headband (2) and the chinband (21) are fixedly connected to the rotating disk (51).

4. The multifunctional anesthesia nasal mask according to claim 1, characterized in that: A slide rail (6) is fixedly mounted on the bottom of the nose mask (1), an air bag (61) is arranged inside the slide rail (6), a fixed edge (62) is fixedly mounted on the outer wall of the air bag (61), and the fixed edge (62) is fixedly connected to the bottom of the inner wall of the slide rail (6) away from the center of the nose mask (1).

5. The multifunctional anesthesia nasal mask according to claim 4, characterized in that: The slide rail (6) is made of a transparent material, and the air bag (61) is dark green.

6. The multifunctional anesthesia nasal mask according to claim 4, characterized in that: A shaping pad (7) sleeved on the airbag (61) is fixedly mounted on the slide rail (6), and the shaping pad (7) is arranged to semi-surround the airbag (61).

7. The multifunctional anesthesia nasal mask according to claim 6, characterized in that: The shaping pad (7) is made of slow-rebound sponge.

8. The multifunctional anesthesia nasal mask according to claim 7, characterized in that: The support assembly comprises: A sliding sleeve (8) slidably mounted on the chin strap (21); A connecting block (81) is arranged on the sliding sleeve (8); The support portion (82) is fixedly mounted on an end of the connection block (81) away from the sliding sleeve (8).

9. The multifunctional anesthesia nasal mask according to claim 8, characterized in that: The support portion (82) is provided with three sizes: large, medium and small. The sliding sleeve (8) is fixedly mounted with a Velcro on the A side. The end of the connecting block (81) away from the support portion (82) is fixedly mounted with a Velcro on the B side that matches the Velcro on the A side.

10. The multifunctional anesthesia nasal mask according to claim 1, characterized in that: The headband (2) and the chinband (21) are made of low-elasticity material.

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