Oxygen mask with good sealing

Abstract

The present application relates to an oxygen mask with good sealing performance, comprising an oxygen mask body, an airbag assembly provided at the bottom of the oxygen mask body, the airbag assembly comprising an annular plate and a main airbag, the annular plate being provided with an air nozzle for inflating and deflating the main airbag; a plurality of drawstrings are evenly arranged in the main airbag, one end of each drawstring is connected to the annular plate, and the other end is connected to the inner bottom of the main airbag; after the main airbag is inflated, the distance between the annular plate and the bottom of the main airbag increases, the drawstrings are straightened and pull up the weak part of the main airbag, so that a plurality of suction cups appear on the surface of the outer bottom of the main airbag, thereby adsorbing and fixing the oxygen mask body to the human skin; the oxygen mask of the present invention is easy to use, has good adhesion and sealing, is not likely to cause leakage of anesthetic gas, and can avoid or reduce the use of laryngeal mask.

Description

Technical Field

[0001] The invention belongs to the technical field of medical protective equipment, and particularly relates to an oxygen mask with good sealing performance. Background Art

[0002] Clinically, when children undergo hernia, circumcision and other surgeries, they need to be anesthetized. Currently, sevoflurane is mostly used for gas anesthesia. During gas anesthesia, an oxygen mask is usually placed on the patient's face, and anesthetic gas is delivered to the oxygen mask through the trachea. After the patient is anesthetized, a laryngeal mask is replaced to deliver oxygen, and the surgery can begin. The disadvantages of this method are:

[0003] 1. The need for an oxygen mask and a laryngeal mask increases the cost of the surgery, which can sometimes lead to complaints or doubts from patients' parents.

[0004] 2. The use of a laryngeal tube may cause postoperative discomfort to the patient;

[0005] 3. Children have poor compliance. When the oxygen mask is placed on the child's face, the child's head sometimes shakes involuntarily, which makes anesthesia surgery difficult. If a strap is used for fixation, the strap may cause greater discomfort to the child, resulting in non-cooperation. In the absence of a strap, medical staff need to press the oxygen mask with their hands to keep the oxygen mask in contact with the child's facial skin to ensure stability and sealing.

[0006] 4. Generally speaking, current oxygen masks are difficult to form an adequate seal when used on children. During anesthesia, sevoflurane will inevitably leak to a greater or lesser extent, polluting the air in the operating room. Inhaling a small amount of sevoflurane will not cause obvious harm to medical staff, but long-term inhalation of small amounts over time may still cause irreversible harm to medical staff.

[0007] 5. When using medical tape to fix the oxygen mask, due to the delicate skin of children, it may cause allergies or irritation to the children's skin.

[0008] 6. Fixing oxygen masks and replacing laryngeal masks will increase the workload of medical staff to a certain extent.

[0009] In fact, for minor surgeries that can be completed in a short time, such as circumcision and small tumor removal, muscle relaxation is not required during anesthesia. At this time, a laryngeal mask is not needed to establish a breathing passage, and the patient can breathe independently. The purpose of still using a laryngeal mask in clinical practice for these minor surgeries is that the excellent sealing of the laryngeal mask enables the instrument to effectively and accurately monitor values ​​such as end-tidal carbon dioxide concentration to ensure the safety of the operation. Oxygen masks have poor airtightness, and directly connecting the pipeline to the oxygen mask can easily cause inaccurate values ​​such as end-tidal carbon dioxide concentration.

[0010] If the oxygen mask seals well enough, it can replace the laryngeal mask for some short surgeries and longer sedation periods, if the mask seals well and can be connected to an end-of-expiratory monitoring device.

[0011] In addition, since the tracheal joints of currently used oxygen masks are mostly set vertically, when performing MRI on children with larger head circumferences, the higher tracheal joint will prevent the child's head from entering the MRI cabin.

[0012] Patent No. 2016204130422, entitled "An Oxygen Mask with a Sealing Bag," discloses a utility model relating to the field of medical device technology, specifically an oxygen mask with a sealing bag. The oxygen mask comprises a mask body, a gas delivery tube, a sealing bag, and a securing strap. The oxygen mask of this utility model features a sealing bag at the edge of the body, which contacts the patient's face. By adjusting the gas within the bag, the bag is tightly fitted to the patient's face. In the case of facial abnormalities or indwelling catheters in the mouth or nose, an auxiliary sealing bag fills the gap between the patient's face and the bag, or wraps around the indwelling catheter and is positioned between the patient's face and the bag. This maintains a good airtightness, reduces air leakage, simplifies operation, and prevents hypoxia caused by poor mask sealing. While this device provides a good seal, it still requires a strap, making it difficult to secure, making it less suitable for anesthesia procedures for children.

[0013] In view of this, it is necessary to provide an oxygen mask suitable for children's anesthesia surgery, which has a small overall height, good sealing, is not prone to anesthetic gas leakage, and can avoid or reduce the use of a laryngeal mask. Summary of the Invention

[0014] The purpose of the present invention is to provide an oxygen mask which is easy to use, has good adhesion and sealing properties, is not prone to leakage of anesthetic gas, can avoid or reduce the use of laryngeal masks, and is suitable for children's anesthesia surgery.

[0015] In order to solve the above technical problems, the present invention discloses an oxygen mask with excellent sealing performance, comprising an oxygen mask body, an airbag assembly provided at the bottom of the oxygen mask body, the airbag assembly comprising an annular plate and a main airbag, the upper side of the annular plate being bonded to the bottom of the oxygen mask body, the two sides of the main airbag being sealed and bonded to the lower side of the annular plate, the main airbag and the annular plate forming an annular sealed space arranged around the bottom of the oxygen mask body; the annular plate being provided with an air nozzle for inflating and deflating the main airbag;

[0016] A plurality of pull ropes are evenly arranged in the main airbag, one end of each pull rope is connected to the annular plate, and the other end is connected to the inner bottom of the main airbag. The connection between the pull rope and the main airbag is the weak point of the main airbag, the thickness of the weak point is less than the thickness of other parts of the bottom of the main airbag, and the pull rope is connected to the center of the weak point;

[0017] After the main airbag is inflated, the distance between the annular plate and the bottom of the main airbag increases, the drawstring is stretched straight and pulls up the weak part of the main airbag, so that a plurality of small grooves appear on the surface of the outer bottom of the main airbag. These small grooves form suction cups, thereby adsorbing and fixing the oxygen mask body to the human skin.

[0018] Preferably, the bottom of the main airbag is composed of a bottom membrane on the lower side and an elastic membrane on the upper side. The bottom membrane and the main airbag are integrally formed, that is, the bottom membrane is the bottom end part of the main airbag. Several through holes are processed on the bottom membrane. The elastic membrane is sealed and bonded to the main airbag, and the elastic membrane and the corresponding areas of the through holes form weak points.

[0019] Preferably, the pull ropes are of different lengths, and the bottom shape of the airbag is controlled by the length of the pull ropes; wherein, the length of the pull ropes at the front of the annular plate gradually shortens from the front sides to the front end, so that the front of the main airbag forms a depression that adapts to the human nose bridge after inflation.

[0020] Preferably, a plurality of annular skirt airbags are provided around the bottom of the outer side of the main airbag. The skirt airbags are made of a material with greater elasticity than the main airbag, and a small amount of normal pressure or low pressure gas is sealed in the skirt airbag. The skirt airbag is made of highly elastic material. After the main airbag is inflated, it is fixed to the human facial skin through a suction cup, which generates pressure on the skirt airbag, squeezes the reserved gas in the skirt airbag to the place where there is a gap between the main airbag and the human facial skin, and causes the skirt airbag to expand locally, so that the place with a large gap between the main airbag and the human facial skin is expanded and filled by the skirt airbag to form a seal.

[0021] Preferably, the number of the skirt airbags is one circle, and the skirt airbags are arranged at the outer edge of the bottom of the main airbag.

[0022] Preferably, the number of the skirt airbags is two circles, and the weak point is located between the two circles of skirt airbags.

[0023] Preferably, when in use, first place the oxygen mask on the child's face, then inflate the main airbag through the air nozzle, and press the oxygen mask with your hand during inflation to keep the oxygen mask in close contact with the human skin, which is conducive to the suction cup forming a greater adsorption force on the human skin.

[0024] Preferably, a trachea connector is provided on the upper portion of the oxygen mask body.

[0025] Preferably, the trachea joint is arranged at an angle.

[0026] Preferably, a curling edge or an annular protrusion is provided on the lower side of the edge of the through hole.

[0027] The oxygen mask with good sealing performance of the present invention has at least the following advantages:

[0028] 1. Easy to use. Place the oxygen mask on the child's face and it will form a good seal after inflation. When removing it, you can directly remove the oxygen mask or remove it after deflating, avoiding the trouble of setting restraints or medical tapes, and also reducing surgical costs.

[0029] 2. After the main airbag is inflated, multiple small suction cups are formed at the bottom, which have good adsorption properties and are not prone to indentation. They will not cause people to feel uncomfortable as easily as large suction cups. Moreover, even if some of the small suction cups leak, it will not have a big impact on the overall adsorption force of the suction cup in a short time. It is especially suitable for short-term anesthesia surgery.

[0030] 3. The setting of the skirt airbag further increases the sealing performance. The main airbag and the skirt airbag effectively ensure the sealing performance of the oxygen mask and can better prevent the leakage of sevoflurane.

[0031] 4. The provision of the elastic membrane is conducive to the full formation of suction force of the suction cup, and the provision of the curled edge or annular protrusion can further prevent the suction cup from leaking.

[0032] 5. As the oxygen mask has good sealing performance, for some short and minor surgeries that do not require muscle relaxation and longer sedation, there is no need to use a laryngeal mask. The monitoring instrument pipeline can be directly connected to the oxygen mask for more accurate monitoring. Without the need for a laryngeal mask, the workload is reduced, the cost of surgery is reduced, and the psychological and physical trauma of children is alleviated. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the top view of an oxygen mask with good sealing performance.

[0034] Figure 2 This is a schematic diagram of the cross-sectional structure of an oxygen mask with good sealing performance.

[0035] Figure 3 for Figure 2 A partial enlarged view of area A in the middle.

[0036] Figure 4 A schematic diagram of the structure of another airbag assembly.

[0037] The numbers in the figure are: 1-oxygen mask body, 2-airbag assembly, 3-annular plate, 4-main airbag, 41-bottom membrane, 42-elastic membrane, 43-through hole, 44-annular protrusion, 5-air nozzle, 6-pull rope, 7-skirt airbag, 8-trachea connector. Implementation Method

[0038] The present invention is further described in detail below through examples so that those skilled in the art can implement the invention with reference to the description.

[0039] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof. Example

[0040] like Figure 1-3 As shown, an oxygen mask with good sealing performance includes an oxygen mask body 1, an airbag assembly 2 is provided at the bottom of the oxygen mask body, and the airbag assembly 2 includes an annular plate 3 and a main airbag 4. The upper side of the annular plate 3 is bonded to the bottom of the oxygen mask body 1, and the two sides of the main airbag 4 are sealed and bonded to the lower side of the annular plate 3. The main airbag 4 and the annular plate 3 form an annular sealed space arranged around the bottom of the oxygen mask body 1; the annular plate is provided with a gas nozzle 5 for inflating and deflating the main airbag;

[0041] A plurality of pull ropes 6 are evenly arranged in the main airbag 4, one end of each pull rope 6 is connected to the annular plate 3, and the other end is connected to the inner bottom of the main airbag. The connection between the pull rope 6 and the main airbag 4 is the weak point of the main airbag, and the thickness of the weak point is less than the thickness of other parts of the bottom of the main airbag 4. The pull rope 6 is connected to the center of the weak point; the annular plate 3 is made of rubber or silicone material, the pull rope 6 is made of inelastic or low-elastic fiber material, and the membrane material used in the main airbag has lower elasticity than the elastic membrane.

[0042] like Figure 2 As shown, after the main airbag 4 is inflated, the distance between the annular plate 3 and the bottom of the main airbag 4 increases, the drawstring 6 is stretched straight and pulls up the weak part of the main airbag 4, so that a plurality of small grooves appear on the surface of the bottom outside of the main airbag. These small grooves form suction cups, thereby adsorbing and fixing the oxygen mask body to the human skin.

[0043] like Figure 3As shown (in actual use, when the oxygen mask is fixed to the human face, the bottom of the main airbag is relatively flatter), the bottom of the main airbag 4 is composed of a bottom membrane 41 on the lower side and an elastic membrane 42 on the upper side. The bottom membrane 41 and the main airbag 4 are integrally formed, that is, the bottom membrane 41 is the bottom end part of the main airbag 4. A plurality of through holes 43 are processed on the bottom membrane. The elastic membrane 42 is sealed and bonded to the main airbag 4, and the areas corresponding to the elastic membrane 42 and the through holes 43 form weak points. The bottom of the main airbag 4 is designed to be a bottom membrane 41 and an elastic membrane 42. When producing the airbag assembly, first bond one end of the drawstring 6 to the annular plate, and then bond the other end of the drawstring 6 to the elastic membrane. Punch a circle of through holes 43 along the center line of the bottom membrane 42 of the main airbag. When punching, the holes can be punched at a spacing of 5-10mm (the through holes are arranged along the center line or staggered on both sides of the center line). The diameter of the through holes is preferably 2-5mm. The connection point between the drawstring and the elastic membrane should be adapted to the arrangement and spacing of the through holes. Then bond the elastic membrane to the bottom membrane. When bonding, pay attention to aligning the through holes with the connection points of the drawstring and the elastic membrane. Finally, bond the two side edges of the main airbag to the bottom surface of the annular plate to facilitate the industrial production of the airbag assembly.

[0044] The pull ropes 6 are of different lengths, and the bottom shape of the airbag is controlled by the length of the pull ropes; wherein, the length of the pull ropes 6 at the front of the annular plate 3 gradually shortens from the front sides to the front end, so that the front of the main airbag after inflation forms a depression adapted to the bridge of the human nose.

[0045] The main airbag 4 is surrounded by several annular skirt airbags 7 at the bottom. These are made of a material with greater elasticity than the main airbag 4 and contain a small amount of atmospheric or low-pressure gas. The skirt airbags are made of a highly elastic material. After the main airbag 4 is inflated, suction cups secure it to the skin of the face, creating pressure on the skirt airbags 7. This forces the remaining gas within the skirt airbags into the gaps between the main airbag and the skin, causing the skirt airbags to expand locally. This expands and fills the larger gaps between the main airbag and the skin, creating a seal. Generally, when an oxygen mask is placed on a child's face, the front end of the mask is often located in the triangular area between the eyebrows and near the bridge of the nose. This area is prone to gaps due to the large curves of the face. The deformation of the skirt airbags seals these gaps, improving the mask's sealability. Since the gas sealed within the skirt airbags is at atmospheric or low pressure and is less likely to leak, there is no need to provide a separate inflation port for the skirt airbags; a small amount of gas can be pre-filled during production, reducing product costs.

[0046] The number of the skirt airbags 7 is one circle, and the skirt airbags are arranged at the outer edge of the bottom of the main airbag.

[0047] During use, the oxygen mask is first placed on the child's face, and then the main airbag is inflated through the nozzle. During inflation, the oxygen mask is manually pressed to maintain close contact between the oxygen mask and the child's skin, which helps the suction cup exert greater suction force on the skin. Due to factors such as slow gas leakage and the release of water vapor from the human pores, the suction cup generated by the main airbag can only maintain good adsorption for a maximum of tens of minutes. Therefore, the oxygen mask of the present invention is more suitable for short, minor surgeries such as circumcision and small tumor resection. To extend the oxygen mask's fixed time, a layer of vaseline or other materials can be applied to the bottom of the airbag before placing the oxygen mask to enhance sealing, or the main airbag can be deflated and then inflated at regular intervals. Medical tape or other materials can also be used for auxiliary fixation.

[0048] The upper part of the oxygen mask body is provided with a tracheal connector 8. The tracheal connector 8 can be connected to the anesthesia trachea and oxygen tube through a three-way connector for the delivery of anesthetic gas and oxygen. At the same time, the monitoring pipeline of the instrument can also be connected or sent into the oxygen mask through the tracheal connector.

[0049] The tracheal connector 8 is tilted. The tilted tracheal connector can reduce the overall height of the oxygen mask and avoid affecting the child during nuclear magnetic resonance imaging.

[0050] The lower edge of the through-hole 43 is provided with a curling edge or annular protrusion 44. When punching the base film, the punching die is heated to an appropriate temperature. The heat generated by the punching process creates a small annular protrusion at the lower edge of the through-hole. Alternatively, after punching, a metal rod with a diameter slightly larger than the through-hole is heated and inserted into the through-hole, creating a more pronounced curling edge or annular protrusion. The curling edge or annular protrusion acts as a sealing ring, helping to maintain the suction cup's adhesion. Example

[0051] like Figure 4 As shown, it is similar to Example 1, the difference being that there are two circles of skirt airbags, and the weak point is located between the two circles of skirt airbags; the two circles of skirt airbags can provide better sealing performance.

[0052] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and embodiments shown and described herein.

Claims

1. An oxygen mask with good sealing performance, characterized in that: The oxygen mask comprises an oxygen mask body, an airbag assembly is provided at the bottom of the oxygen mask body, and the airbag assembly includes an annular plate and a main airbag. The upper side of the annular plate is bonded to the bottom of the oxygen mask body, and the two sides of the main airbag are sealed and bonded to the lower side of the annular plate. The main airbag and the annular plate form an annular sealed space arranged around the bottom of the oxygen mask body; the annular plate is provided with an air nozzle for inflating and deflating the main airbag; A plurality of pull ropes are evenly arranged in the main airbag, one end of each pull rope is connected to the annular plate, and the other end is connected to the inner bottom of the main airbag. The connection between the pull rope and the main airbag is the weak point of the main airbag, the thickness of the weak point is less than the thickness of other parts of the bottom of the main airbag, and the pull rope is connected to the center of the weak point; After the main airbag is inflated, the distance between the annular plate and the bottom of the main airbag increases, the drawstring is stretched straight, and the weak part of the main airbag is pulled up, so that a plurality of small grooves appear on the surface of the outer bottom of the main airbag. These small grooves form suction cups, thereby adsorbing and fixing the oxygen mask body to the human skin; The bottom of the main airbag is composed of a bottom membrane on the lower side and an elastic membrane on the upper side. The bottom membrane and the main airbag are integrally formed, that is, the bottom membrane is the bottom end part of the main airbag. A plurality of through holes are processed on the bottom membrane. The elastic membrane is sealed and bonded to the main airbag, and the elastic membrane and the areas corresponding to the through holes form weak points. The drawstrings are of different lengths, and the bottom shape of the airbag is controlled by the length of the drawstrings.

2. The oxygen mask with good sealing performance according to claim 1, characterized in that: in, The length of the drawstring at the front of the annular plate gradually shortens from both sides of the front to the front end, so that the front of the main airbag forms a depression adapted to the bridge of the human nose after inflation.

3. The oxygen mask with good sealing performance according to claim 1, characterized in that: A number of annular skirt airbags are provided around the bottom of the outer side of the main airbag. The skirt airbags are made of a material with greater elasticity than the main airbag, and a small amount of normal pressure or low-pressure gas is sealed in the skirt airbag. The skirt airbag is made of highly elastic material. After the main airbag is inflated, it is fixed to the human facial skin through a suction cup, which generates pressure on the skirt airbag, squeezes the reserved gas in the skirt airbag to the place where there is a gap between the main airbag and the human facial skin, and causes the skirt airbag to partially expand, so that the place with a large gap between the main airbag and the human facial skin is expanded and filled by the skirt airbag to form a seal.

4. The oxygen mask with good sealing performance according to claim 3, characterized in that: The number of the skirt airbags is one circle, and the skirt airbags are arranged at the outer edge of the bottom of the main airbag.

5. The oxygen mask with good sealing performance according to claim 3, characterized in that: The number of the skirt airbags is two circles, and the weak point is located between the two circles of skirt airbags.

6. The oxygen mask with good sealing performance according to claim 1, characterized in that: When in use, first place the oxygen mask on the child's face, then inflate the main airbag through the air nozzle. When inflating, press the oxygen mask with your hand to keep the oxygen mask in close contact with the human skin, so that the suction cup can form a greater adsorption force on the human skin.

7. The oxygen mask with good sealing performance according to claim 1, characterized in that: A trachea joint is provided on the upper portion of the oxygen mask body.

8. The oxygen mask with good sealing performance according to claim 7, characterized in that: The trachea joint is arranged obliquely.

9. The oxygen mask with good sealing performance according to claim 1, characterized in that: A curling edge or an annular protrusion is provided on the lower side of the edge of the through hole.

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