Mask assembly for gastroscopy

Abstract

The invention discloses a mask assembly for gastroscopy, and relates to the technical field of masks for gastroscopy. The face mask comprises a face mask body and further comprises two first binding belts fixedly connected to the side face of the face mask body, a mouthpiece is fixedly connected to the back face of the face mask body, the front end of the mouthpiece is communicated with the front side face of the face mask body, the interior of the face mask body is of a center hole design, and the front face of the face mask body is communicated with an oxygen pipe. By means of the mistaken inhalation prevention oxygen supply unit, the two nasal plug tubes can be plugged into the two nostrils of a patient respectively, so that the peripheral faces of the nasal plug tubes abut against the nasal cavities of the patient, and secretions flowing into the mask body from the mouth of the patient can be effectively prevented from being inhaled into the nasal cavities in the breathing process of the patient; therefore, bucking and oxygen deficit caused by the fact that secretions enter the respiratory tract of the patient are avoided, it is guaranteed that gastroscopy can be conducted smoothly and safely, and safety and reliability of the mask assembly are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of face masks for gastroscopy examination, and specifically to a face mask assembly for gastroscopy examination. Background Technique

[0002] Gastroscopy examination is one of the most common examination methods in the department of gastroenterology. Through gastroscopy, the mucosal state of the esophagus, stomach, duodenal bulb and even the descending part can be observed sequentially and clearly, and in vivo pathological and cytological examinations can be carried out. Therefore, the diagnosis of gastroscopy examination is reliable and can timely and accurately detect relevant lesions in the digestive tract.

[0003] During gastroscopy examination, a catheter needs to be inserted through the patient's throat along the esophagus into the stomach so as to send the gastroscope to the target position for examination. During the insertion of the catheter, the patient will experience nausea and vomiting, resulting in the overflow of gastric acid and saliva and other secretions from the mouth. In order to prevent these overflowing secretions from contaminating the patient's clothes and the internal environment of the examination room, a face mask will be worn on the patient to block these secretions.

[0004] However, after wearing the face mask, although the secretions overflowing from the patient's mouth can be blocked and intercepted, these secretions intercepted in the face mask may be inhaled from the nasal cavity when the patient breathes, resulting in the entry of secretions into the respiratory tract, which will seriously affect the normal breathing of the patient, cause the patient to have an oxygen deficiency problem, and seriously affect the life safety of the patient. Therefore, there is an urgent need for a face mask assembly for gastroscopy examination. Summary of the Invention

[0005] The purpose of the present invention is to provide a face mask assembly for gastroscopy examination to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A face mask assembly for gastroscopy examination, including: a face mask body; further including: two first restraint straps are fixedly connected to the side surface of the face mask body, a bite piece is fixedly connected to the back of the face mask body, the front end of the bite piece is communicated with the front side surface of the face mask body, the inside of the face mask body is designed with a middle hole, an oxygen tube is communicated with the front of the face mask body, and an anti-aspiration oxygen supply unit is connected to the back of the face mask body; The anti-aspiration oxygen supply unit includes an oxygen inlet tube communicated with the back of the face mask body, a connecting tube is communicated with the end of the oxygen inlet tube away from the face mask body, two nasal plug tubes are symmetrically communicated with the end of the connecting tube away from the oxygen inlet tube, and the outer diameter of the nasal plug tube is not less than two centimeters.

[0007] Preferably, an expansion airbag is fixedly connected to the rear side of the mask body, and an inflation tube is communicated with the outer side wall of the expansion airbag. The advantage of this setting is that by inflating the expansion airbag through the inflation tube, it can cooperate with the two first restraint straps to make the expansion airbag fit more fully with the patient's face, thereby preventing the secretions overflowing from the patient's mouth from flowing out through the gap between the back of the mask body and the patient's face, avoiding the pollution of the patient's clothes and the examination room environment caused by the secretions, and improving the practicability of the mask assembly.

[0008] Preferably, the anti-aspiration oxygen supply unit further includes a wrapping airbag fixedly connected to the end face of the connecting pipe far away from the oxygen inlet pipe. Two air inlet pipes are symmetrically communicated between the outer side wall of the wrapping airbag and the back of the mask body. The inner side wall of the wrapping airbag is adapted to the shape of the patient's nose tip. The advantage of this setting is that by inflating the wrapping airbag through the air inlet pipe, the wrapping airbag can tightly wrap the patient's nose tip, and then cooperate with the nasal plug tube to block the patient's nostrils. In this way, it can effectively prevent the secretions inside the mask body from being inhaled into the nasal cavity and respiratory tract during the patient's breathing process, avoiding the patient from choking and hypoxia, ensuring the smooth and safe progress of the gastroscopy examination, and improving the safety and reliability of the mask assembly.

[0009] Preferably, a support unit is connected to the bottom of the mask body, and the support unit is used to form a support between the mask body and the patient's body. The advantage of this setting is that it can prevent the patient's neck from bending towards the chest direction during the gastroscopy examination, which affects the normal movement of the gastroscope in the patient's digestive tract, and at the same time avoids the patient's breathing discomfort caused by excessive neck bending, effectively improving the safety and reliability of the mask assembly.

[0010] Preferably, the support unit includes two fixing plates symmetrically distributed on the left and right. Two arc-shaped grooves are symmetrically opened at the bottoms of the two fixing plates. The two fixing plates are sleeved on the tops of the patient's shoulders through the grooves. Two second restraint straps are symmetrically and fixedly connected to the bottoms of the two fixing plates. A support plate is fixedly connected between the fronts of the two fixing plates. A first internal thread cylinder is rotatably connected to the top of the support plate. A first screw rod is threadedly inserted into the first internal thread cylinder. The top end of the first screw rod is fixedly connected with a support rod, and the top end of the support rod is fixedly connected with the bottom of the mask body. The advantage of this setting is that the fixing plates can be conveniently and firmly bound to the tops of the patient's shoulders through the second restraint straps and the grooves, providing a reliable support point for the support plate, thereby ensuring that the support rod can reliably support the mask body, effectively preventing the patient's neck from bending excessively towards the chest direction, ensuring the smooth progress of the gastroscopy examination, and at the same time, by rotating the first internal thread cylinder, the first screw rod can be driven to move up and down, so that the first screw rod drives the support rod to move up and down, and thus the distance between the support plate and the mask body can be adjusted according to the length of the patient's neck, ensuring the stable and reliable progress of the support work.

[0011] Preferably, the support unit includes two connecting blocks symmetrically and slidably connected to the back surfaces of the two fixing plates through a moving mechanism. An arc-shaped elastic rod is fixedly connected between the two connecting blocks. A buffer sleeve is wrapped and connected to the outer peripheral surface of the elastic rod. The advantage of this setting is that through the elastic rod and the buffer sleeve located at the back of the patient's neck, it is possible to prevent the fixing plate from rotating forward and downward when the support plate supports the mask body, further improving the stability of the support for the mask body and enhancing the reliability and practicality of the mask assembly.

[0012] Preferably, the moving mechanism includes two threaded rods symmetrically and rotatably connected to the back surfaces of the two fixing plates through rotating seats. The moving mechanism further includes two guide rods symmetrically and fixedly connected to the back surfaces of the two fixing plates through fixing seats. The two connecting blocks are symmetrically and threadedly sleeved on the external threaded surfaces of the two threaded rods, and the two connecting blocks are symmetrically and movably sleeved on the outer peripheral surfaces of the two guide rods. The advantage of this setting is that the two connecting blocks can be driven to move towards each other by rotating the threaded rods and cooperating with the guide rods, so that the bending degree of the elastic rod can be adjusted, enabling the elastic rod to better adapt to patients with different neck circumferences and enhancing the reliability and practicality of the mask assembly.

[0013] Preferably, an auxiliary breathing unit is connected to the tops of the two fixing plates. The auxiliary breathing unit is used to lift the patient's mandibular joint towards the top of the head. The advantage of this setting is that lifting the patient's mandibular joint towards the top of the head can avoid reducing the degree of posterior displacement of the patient's tongue root after anesthesia, thus preventing the severe posterior displacement of the tongue root from blocking the respiratory tract, ensuring that the patient can breathe smoothly. At the same time, it is not necessary for medical staff to manually pull the patient's mandibular joint, reducing the labor intensity of medical staff and enhancing the safety and practicality of the mask assembly.

[0014] Preferably, the auxiliary breathing unit includes two second internal threaded cylinders symmetrically and rotatably connected to the tops of the two fixing plates. The tops of the two second internal threaded cylinders are symmetrically and threadedly inserted with two second screws. The tops of the two second screws are symmetrically and rotatably connected to two top plates through damping rotating shafts. The advantage of this setting is that it enables medical staff to only pre-rotate the second internal threaded cylinders to drive the second screws to move upward, so that the second screws drive the top plates to move upward until the patient's mandibular joint is reliably lifted, ensuring that the patient can breathe normally during the anesthesia examination process.

[0015] Preferably, the auxiliary breathing unit further includes two arc-shaped convex blocks symmetrically and fixedly connected to the tops of the two top plates. The advantage of this setting is that by fitting the arc-shaped convex blocks into the patient's mandibular part, it is possible to prevent the slippage between the patient's mandibular joint and the top plate, ensuring the reliability of lifting the patient's mandibular joint.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the anti-aspiration oxygen supply unit, the present invention enables two nasal plug tubes to be respectively inserted into the two nostrils of a patient, so that the outer peripheral surface of the nasal plug tube is tightly pressed against the patient's nasal cavity. In this way, it can effectively prevent the secretions flowing into the mask body from the patient's mouth from being inhaled into the nasal cavity during the patient's breathing process, thus avoiding the secretions from entering the patient's respiratory tract and causing choking cough and hypoxia, ensuring that the gastroscopy examination can be carried out smoothly and safely, and effectively improving the safety and reliability of the mask assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the first structural schematic diagram of the present invention; Figure 2 is the second structural schematic diagram of the present invention; Figure 3 is the third structural schematic diagram of the present invention; Figure 4 is the first partial structural schematic diagram of the present invention; Figure 5 is the second partial structural schematic diagram of the present invention; Figure 6 is the third partial structural schematic diagram of the present invention; Figure 7 In the present invention Figure 3 is the enlarged schematic diagram at A in; Figure 8 In the present invention Figure 6 is the enlarged schematic diagram at B in.

[0018] In the figure: 1, mask body; 101, first restraint band; 102, bite piece; 103, oxygen tube; 104, expansion airbag; 105, inflation tube; 2, anti-aspiration oxygen supply unit; 21, oxygen inlet tube; 22, connecting tube; 23, nasal plug tube; 24, wrapping airbag; 25, intake tube; 3, support unit; 31, fixing plate; 32, groove; 33, second restraint band; 34, support plate; 35, first internal thread cylinder; 36, first screw rod; 37, support rod; 38, connecting block; 39, elastic rod; 310, buffer sleeve; 311, moving mechanism; 3111, threaded rod; 3112, guide rod; 4, auxiliary breathing unit; 41, second internal thread cylinder; 42, second screw rod; 43, top plate; 44, arc-shaped convex block. DETAILED DESCRIPTION OF THE INVENTION

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 8 , a mask assembly for gastroscopy examination in the illustrated figure, including: a mask body 1; further including: two first restraint straps 101 fixedly connected to the side surface of the mask body 1, a bite piece 102 fixedly connected to the back surface of the mask body 1, the front end of the bite piece 102 communicating with the front side surface of the mask body 1, the interior of the mask body 1 being designed with a central hole, an oxygen tube 103 communicating with the front surface of the mask body 1, and an anti-aspiration oxygen supply unit 2 connected to the back surface of the mask body 1; The anti-aspiration oxygen supply unit 2 includes an oxygen inlet tube 21 connected to the back surface of the mask body 1, one end of the oxygen inlet tube 21 away from the mask body 1 communicating with a connecting tube 22, two nasal plug tubes 23 symmetrically communicating with one end of the connecting tube 22 away from the oxygen inlet tube 21, and the outer diameter of the nasal plug tube 23 being not less than two centimeters.

[0021] Refer to Figures 1 - 6 , an expansion airbag 104 is fixedly connected to the rear side surface of the mask body 1, and an air filling tube 105 is communicated with the outer side wall of the expansion airbag 104.

[0022] Specifically, by inflating the expansion airbag 104 through the air filling tube 105, the expansion airbag 104 can be more fully fitted with the patient's face in cooperation with the two first restraint straps 101, thereby preventing the secretions overflowing from the patient's mouth from flowing out through the gap between the back surface of the mask body 1 and the patient's face, avoiding the pollution of the patient's clothes and the examination room environment by the secretions, and improving the practicability of the mask assembly.

[0023] Refer to Figure 3 , Figure 5 , Figure 6 and Figure 8 , the anti-aspiration oxygen supply unit 2 further includes a wrapping airbag 24 fixedly connected to the end surface of the connecting tube 22 away from the oxygen inlet tube 21, two air inlet tubes 25 symmetrically communicating between the outer side wall of the wrapping airbag 24 and the back surface of the mask body 1, and the inner side wall of the wrapping airbag 24 being adapted to the shape of the nose tip.

[0024] Specifically, inflating the wrapping airbag 24 through the air inlet pipe 25 can enable the wrapping airbag 24 to tightly wrap the tip of the patient's nose. Then, in cooperation with the nasal plug tube 23 to block the patient's nostrils, this can effectively prevent the secretions inside the mask body 1 from being inhaled into the nasal cavity and respiratory tract during the patient's breathing process, avoid the patient from having choking coughs and hypoxia, ensure the smooth and safe progress of the gastroscopy examination, and improve the safety and reliability of this mask assembly. The main function of this nasal plug tube 23 is to prevent the secretions in the patient's mouth from overflowing into the mask body 1 and being accidentally inhaled into the nasal cavity by the patient during the gastroscopy examination, causing choking coughs. Oxygen supply is only an additional function, and oxygen supply or non-oxygen supply can be selected according to specific needs. Moreover, it can be selected not to insert the nasal plug tube 23 into the patient's nostrils, and the patient only needs to bite the mouthpiece.

[0025] Refer to Figures 1 - 3 , a support unit 3 is connected to the bottom of the mask body 1, and the support unit 3 is used to form a support between the mask body 1 and the patient's body.

[0026] Specifically, it can avoid the patient's neck bending towards the chest direction during the gastroscopy examination, which affects the normal movement of the gastroscope in the patient's digestive tract. At the same time, it can avoid the patient's breathing discomfort caused by excessive neck bending, and effectively improve the safety and reliability of this mask assembly.

[0027] Refer to Figures 1 - 3 , the support unit 3 includes two fixing plates 31 symmetrically distributed on the left and right. Two arc-shaped grooves 32 are symmetrically opened at the bottoms of the two fixing plates 31. The two fixing plates 31 are sleeved on the top of the patient's shoulders through the grooves 32. Two second restraint straps 33 are symmetrically and fixedly connected to the bottoms of the two fixing plates 31. A support plate 34 is fixedly connected between the fronts of the two fixing plates 31. A first internal thread cylinder 35 is rotatably connected to the top of the support plate 34. A first screw rod 36 is threadedly inserted into the first internal thread cylinder 35. The top end of the first screw rod 36 is fixedly connected to a support rod 37, and the top end of the support rod 37 is fixedly connected to the bottom of the mask body 1.

[0028] Specifically, through the second restraint straps 33 and the grooves 32, the fixing plates 31 can be conveniently and firmly bound to the top of the patient's shoulders. In this way, a reliable support point is provided for the support plate 34, so as to ensure that the support rod 37 can reliably support the mask body 1, effectively avoiding the patient's neck from excessively bending towards the chest direction, ensuring the smooth progress of the gastroscopy examination. At the same time, by rotating the first internal thread cylinder 35, the first screw rod 36 can be driven to move up and down, so that the first screw rod 36 drives the support rod 37 to move up and down. In this way, the distance between the support plate 34 and the mask body 1 can be adjusted according to the length of the patient's neck, ensuring the stable and reliable progress of the support work.

[0029] Refer to Figure 1 , Figure 2 ,Figure 3 and Figure 7 The support unit 3 includes two connecting blocks 38 symmetrically and slidably connected to the back surfaces of two fixing plates 31 through a moving mechanism 311. An arc-shaped elastic rod 39 is fixedly connected between the two connecting blocks 38, and a buffer sleeve 310 is wrapped and connected to the outer peripheral surface of the elastic rod 39.

[0030] Specifically, through the elastic rod 39 and the buffer sleeve 310 located at the back of the patient's neck, it is possible to prevent the support plate 34 from driving the fixing plate 31 to rotate forward and downward during the process of supporting the mask body 1, further improving the stability of the support for the mask body 1 and enhancing the reliability and practicality of the mask assembly.

[0031] Refer to Figure 7 The moving mechanism 311 includes two threaded rods 3111 symmetrically and rotatably connected to the back surfaces of two fixing plates 31 through rotating seats. The moving mechanism 311 further includes two guide rods 3112 symmetrically and fixedly connected to the back surfaces of two fixing plates 31 through fixing seats. The two connecting blocks 38 are symmetrically and threadedly sleeved on the external thread surfaces of the two threaded rods 3111, and the two connecting blocks 38 are symmetrically and movably sleeved on the outer peripheral surfaces of the two guide rods 3112.

[0032] Specifically, by rotating the threaded rod 3111 and cooperating with the guide rod 3112, the two connecting blocks 38 can be driven to move towards each other, so that the bending degree of the elastic rod 39 can be adjusted, enabling the elastic rod 39 to better adapt to patients with different neck circumferences, enhancing the reliability and practicality of the mask assembly. The mask body 1 and the following support unit 3 are separated, so different-sized mask bodies 1 can be replaced according to the differences in the patient's head size, thus expanding the scope of use of the mask assembly, and the mask body 1 has different sizes and models.

[0033] Refer to Figures 1 - 3 At the tops of the two fixing plates 31, an auxiliary breathing unit 4 is connected. The auxiliary breathing unit 4 is used to lift the patient's mandibular joint towards the top of the head.

[0034] Specifically, lifting the patient's mandibular joint towards the top of the head can prevent and reduce the degree of the patient's tongue root posterior prolapse after anesthesia, thus avoiding serious posterior prolapse of the tongue root from blocking the respiratory tract, ensuring that the patient can breathe smoothly. At the same time, it is not necessary for medical staff to pull the patient's mandibular joint with both hands, reducing the labor intensity of medical staff and enhancing the safety and practicality of the mask assembly.

[0035] Refer to Figures 1 - 3, the auxiliary breathing unit 4 includes two second internal threaded cylinders 41 symmetrically and rotatably connected to the tops of two fixing plates 31. At the tops of the two second internal threaded cylinders 41, two second screw rods 42 are symmetrically inserted in a threaded manner. At the tops of the two second screw rods 42, two top plates 43 are symmetrically and rotatably connected through damping rotating shafts. The second threaded cylinder 41 and the second screw rod 42 can also be replaced with electric push rods. In this way, the height of the top plate 43 and the arc-shaped convex block 44 can be adjusted by controlling the lifting of the electric push rod through a button, making the neck support operation more convenient.

[0036] Specifically, the medical staff only needs to pre-rotate the second internal threaded cylinder 41 to drive the second screw rod 42 to move upward, so that the second screw rod 42 drives the top plate 43 to move upward until the patient's mandibular joint is reliably lifted, ensuring that the patient can breathe normally during the anesthesia examination.

[0037] Refer to Figure 1 and Figure 3 , the auxiliary breathing unit 4 further includes two arc-shaped convex blocks 44 symmetrically and fixedly connected to the tops of the two top plates 43.

[0038] Specifically, by engaging the arc-shaped convex block 44 into the patient's mandibular part, the slippage between the patient's mandibular joint and the top plate 43 can be avoided, ensuring the reliability of lifting the patient's mandibular joint.

[0039] Working principle: When in use, first align the two nasal plug tubes 23 and insert them into the two nostrils of the patient. Then push the nasal plug tubes 23 deep into the patient's nostrils until the wrapping airbag 24 is sleeved on the patient's nose tip. At the same time, insert the mouthpiece 102 into the patient's mouth. Then put the mask body 1 on the patient's face and fix the mask body 1 on the patient's face through the two first restraint straps 101.

[0040] Then inflate the inflatable airbag 104 through the inflating tube 105, which can cooperate with the two first restraint straps 101 to make the inflatable airbag 104 fit more fully with the patient's face, thereby preventing the secretions overflowing from the patient's mouth from flowing out through the gap between the back of the mask body 1 and the patient's face. And the gas filled into the inflatable airbag 104 will enter the wrapping airbag 24 through the air inlet tube 25. In this way, the wrapping airbag 24 is inflated until the patient's nose tip is tightly wrapped, and then cooperate with the nasal plug tubes 23 to block the patient's nostrils. In this way, the secretions inside the mask body 1 can be effectively prevented from being inhaled into the nasal cavity and respiratory tract during the patient's breathing process, avoiding the patient from choking and lacking oxygen, and ensuring the smooth and safe progress of the gastroscopy examination.

[0041] Subsequently, oxygen is filled into the hollow part inside the mask body 1 through the oxygen tube 103, and then the oxygen is sent into the patient's nasal cavity through the oxygen inlet tube 21, the connecting tube 22 and the nasal plug tubes 23, so as to supply oxygen to the patient during the gastroscopy examination.

[0042] Before wearing the mask body 1, let the patient's neck extend between the elastic rod 39 and the support plate 34, and then rotate the threaded rod 3111 and cooperate with the guide rod 3112 to drive the two connecting blocks 38 to move towards each other, so that the bending degree of the elastic rod 39 can be adjusted, so that the buffer sleeve 310 can better tightly abut against the back side of the patient's neck.

[0043] Then rotate the first internal thread cylinder 35 to drive the first screw rod 36 to move up and down, so that the first screw rod 36 drives the support rod 37 to move up and down, so that the distance between the support plate 34 and the mask body 1 can be adjusted according to the length of the patient's neck, ensuring that the support work is carried out stably and reliably.

[0044] Subsequently, rotate the second internal thread cylinder 41 to drive the second screw rod 42 to move upward, so that the second screw rod 42 drives the top plate 43 and the arc-shaped convex block 44 to move upward until the patient's mandibular joint is reliably lifted, so as to ensure that the patient can breathe normally during the anesthesia examination.

[0045] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A face mask assembly for gastroscopy, comprising: Face mask body (1); characterized in that it further comprises: two first restraint straps (101) fixedly connected to the side surface of the face mask body (1), a bite piece (102) fixedly connected to the back surface of the face mask body (1), the front end of the bite piece (102) being in communication with the front side surface of the face mask body (1), the interior of the face mask body (1) being designed with a central hole, an oxygen tube (103) being connected to the front surface of the face mask body (1), and an anti-aspiration oxygen supply unit (2) being connected to the back surface of the face mask body (1); The anti-aspiration oxygen supply unit (2) includes an oxygen inlet tube (21) connected to the back surface of the face mask body (1), one end of the oxygen inlet tube (21) away from the face mask body (1) being connected to a connecting tube (22), two nasal plug tubes (23) being symmetrically connected to the end of the connecting tube (22) away from the oxygen inlet tube (21), and the outer diameter of the nasal plug tube (23) being not less than two centimeters.

2. The face mask assembly for gastroscopy according to claim 1, wherein: An expansion airbag (104) is fixedly connected to the back side surface of the face mask body (1), and an air filling tube (105) is connected to the outer side wall of the expansion airbag (104).

3. The face mask assembly for gastroscopy according to claim 2, characterized in that: The anti-aspiration oxygen supply unit (2) further includes a wrapping airbag (24) fixedly connected to the end surface of the connecting tube (22) away from the oxygen inlet tube (21), two air inlet tubes (25) being symmetrically connected between the outer side wall of the wrapping airbag (24) and the back surface of the face mask body (1), and the inner side wall of the wrapping airbag (24) being adapted to the shape of the nasal tip.

4. The face mask assembly for gastroscopy examination according to claim 3, characterized in that: A support unit (3) is connected to the bottom of the face mask body (1), and the support unit (3) is used to form a support between the face mask body (1) and the patient's body.

5. The face mask assembly for gastroscopy according to claim 4, characterized in that: The support unit (3) includes two fixing plates (31) symmetrically distributed on the left and right, two arc-shaped grooves (32) being symmetrically formed at the bottoms of the two fixing plates (31), the two fixing plates (31) being sleeved on the tops of the patient's shoulders through the grooves (32), two second restraint straps (33) being symmetrically fixedly connected to the bottoms of the two fixing plates (31), a support plate (34) being fixedly connected between the front surfaces of the two fixing plates (31), a first internal thread cylinder (35) being rotatably connected to the top of the support plate (34), a first screw rod (36) being threadedly inserted into the first internal thread cylinder (35), a support rod (37) being fixedly connected to the top end of the first screw rod (36), and the top end of the support rod (37) being fixedly connected to the bottom of the face mask body (1).

6. The face mask assembly for gastroscopy according to claim 5, characterized in that: The support unit (3) includes two connecting blocks (38) symmetrically and slidably connected to the back surfaces of the two fixing plates (31) through a moving mechanism (311), a circular arc-shaped elastic rod (39) being fixedly connected between the two connecting blocks (38), and a buffer sleeve (310) being wrapped around the outer peripheral surface of the elastic rod (39).

7. A face mask assembly for gastroscopy according to claim 6, characterized in that: The moving mechanism (311) includes two threaded rods (3111) symmetrically and rotatably connected to the back surfaces of two fixing plates (31) through a rotating base. The moving mechanism (311) further includes two guide rods (3112) symmetrically and fixedly connected to the back surfaces of two fixing plates (31) through a fixing base. Two of the connecting blocks (38) are symmetrically and threadedly sleeved on the external thread surfaces of the two threaded rods (3111), and two of the connecting blocks (38) are symmetrically and movably sleeved on the outer peripheral surfaces of the two guide rods (3112).

8. The face mask assembly for gastroscopy according to claim 7, characterized in that: Two of the fixing plates (31) are connected to an auxiliary breathing unit (4) at the top. The auxiliary breathing unit (4) is used to lift the patient's mandibular joint towards the top of the head.

9. The face mask assembly for gastroscopy according to claim 8, characterized in that: The auxiliary breathing unit (4) includes two second internal threaded cylinders (41) symmetrically and rotatably connected to the tops of two fixing plates (31). The tops of two of the second internal threaded cylinders (41) are symmetrically and threadedly inserted with two second screw rods (42). The tops of two of the second screw rods (42) are symmetrically and rotatably connected to two top plates (43) through a damping rotating shaft.

10. A face mask assembly for gastroscopy according to claim 9, characterized in that: The auxiliary breathing unit (4) further includes two arc-shaped convex blocks (44) symmetrically and fixedly connected to the tops of two top plates (43).

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