An anesthetic breathing mask
By introducing a fixing strap, rotating rod, torsion spring, and airbag structure into the anesthesia breathing mask, the strap and airbag are automatically adjusted to fit the patient's face, solving the problem of existing anesthesia masks requiring manual pressing and improving applicability and comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FIRST AFFILIATED HOSPITAL OF GANNAN MEDICAL UNIV
- Filing Date
- 2025-04-18
- Publication Date
- 2026-06-30
AI Technical Summary
Existing anesthesia breathing masks require doctors to manually press and straighten them during use, which increases workload and easily leads to hand fatigue, reducing applicability.
An anesthesia breathing mask was designed, which adopts a structure of fixing strap, rotating rod, torsion spring and air bag. The automatic adjustment of the strap and air bag achieves a close fit to the patient's face, reducing manual operation.
It achieves a tight fit between the mask and the patient's face without the need for medical staff to manually press it, improving the applicability and comfort of the breathing mask and adapting to patients with different face shapes.
Smart Images

Figure CN224421672U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of respiratory mask technology, specifically an anesthesia respiratory mask. Background Technology
[0002] An anesthesia breathing mask is a medical device used during anesthesia. It is mainly used to help patients maintain breathing during surgery. It delivers oxygen and anesthetic gases through an intake tube connected to the anesthesia machine and removes the patient's exhaled waste gas. The mask is usually made of soft silicone or plastic and is ergonomically designed to ensure comfortable wear and a good seal. It can fit closely to the patient's face to ensure effective gas delivery and exchange.
[0003] Existing anesthesia breathing masks present some operational inconveniences. Doctors need to manually press one end of the mask to ensure it fits snugly against the patient's face, while simultaneously using their other hand to straighten the inhalation tube to ensure smooth gas flow into the mask. This manual operation not only increases the doctor's workload but also easily leads to hand fatigue during prolonged use, thus reducing the mask's applicability. Therefore, an anesthesia breathing mask is needed to meet these needs. Utility Model Content
[0004] The purpose of this invention is to provide an anesthesia breathing mask to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an anesthesia breathing mask, comprising a breathing mask body, symmetrical fixing straps installed on the side of the breathing mask body, a movable cavity opened in the fixing strap, a rotating rod rotatably installed in the movable cavity, a connecting strap installed on the side of the rotating rod, a torsion spring installed in the rotating rod, a binding strap provided at one end of the fixing strap, and the two ends of the binding strap connected to two connecting straps.
[0006] Preferably, a connecting tube is installed at one end of the main body of the breathing mask, an oxygen tube is installed at one end of the connecting tube, and an anesthesia tube is installed at the other end of the connecting tube.
[0007] Preferably, an airbag is installed on the side of the main body of the breathing mask, and two inflation ports are opened at one end of the airbag, with an inflation tube installed at one end of the inflation port.
[0008] Preferably, the breathing mask body has an air inlet, which is connected to a connecting pipe.
[0009] Preferably, one end of the connecting strip is wrapped around the side of the rotating rod, and the torsion spring is connected to the inner wall of the rotating rod.
[0010] Preferably, the main body of the breathing mask is made of PVC.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] (1) This utility model, by setting a fixed strap and a movable cavity, pulls one end of the strap to stretch the two connecting straps, rotates the rotating rod in the movable cavity, and twists the torsion spring. The rebound of the torsion spring causes the connecting strap to wrap around the side of the rotating rod, thereby binding the strap to the back of the patient's head. After the main body of the breathing mask is worn on the patient's face, the strap pulls to make the main body of the breathing mask fit the patient's face. There is no need for medical staff to manually press the main body of the breathing mask to prevent air leakage, thus improving the applicability of the main body of the breathing mask.
[0013] (2) By setting up an airbag and an inflation port, this utility model can inflate the airbag by inflating it through the inflation port and inflation tube when the patient's face shape is different. When wearing it, the inflated surface of the airbag can fit the patient's face, so that the main body of the breathing mask can better cover the patient's face after wearing it. When injecting anesthetic gas into the main body of the breathing mask through the connecting tube and oxygen tube, it can prevent air leakage. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of an anesthesia breathing mask proposed in this utility model;
[0015] Figure 2 This is a structural diagram of the rotating rod and connecting strap of an anesthesia breathing mask proposed in this utility model;
[0016] Figure 3 This is a structural diagram of the connecting tube and air bag of an anesthesia breathing mask proposed in this utility model.
[0017] Figure 4 for Figure 3 Enlarged view of point A.
[0018] In the diagram: 1. Main body of the breathing mask; 2. Fixing strap; 3. Movable chamber; 4. Rotating rod; 5. Connecting strap; 6. Torsion spring; 7. Strap; 8. Connecting tube; 9. Oxygen tube; 10. Anesthesia tube; 11. Air bag; 12. Air inlet; 13. Inflation port; 14. Inflation tube. Detailed Implementation
[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example 1: Please refer to Figure 1-4This utility model provides a technical solution: an anesthesia breathing mask, including a breathing mask body 1, symmetrical fixing straps 2 installed on the side of the breathing mask body 1, a movable cavity 3 opened in the fixing strap 2, a rotating rod 4 rotatably installed in the movable cavity 3, a connecting strap 5 installed on the side of the rotating rod 4, a torsion spring 6 installed in the rotating rod 4, a binding strap 7 at one end of the fixing strap 2, the two ends of the binding strap 7 connected to the two connecting straps 5, a connecting tube 8 installed at one end of the breathing mask body 1, an oxygen tube 9 installed at one end of the connecting tube 8, an anesthesia tube 10 installed at the other end of the connecting tube 8, an air inlet 12 opened in the breathing mask body 1, the air inlet 12 communicating with the connecting tube 8, one end of the connecting strap 5 wrapped around the side of the rotating rod 4, and the torsion spring 6 connected to the inner wall of the rotating rod 4. The main body 1 of the breathing mask is made of PVC. Pulling the strap 7 at one end of the fixing strap 2 causes the two connecting straps 5 to be pulled out from the movable cavity 3. At this time, the rotating rod 4 rotates in the movable cavity 3, and the two ends of the torsion spring 6 are twisted, forming a certain rebound force. After the strap 7 is placed on the back of the patient's head, it is released. The torsion spring 6 returns to its original position and drives the rotating rod 4 to rotate, which in turn causes the connecting straps 5 to wrap around the side of the rotating rod 4. The elasticity of the torsion spring 6 binds the strap 7 to the patient's head. The patient's face is covered and fixed by the main body 1 of the breathing mask and the air bag 11. At this time, anesthetic gas can be delivered to the patient's mouth and nose through the air inlet 12 through the connecting tube 8 and the oxygen tube 9 for anesthesia. There is no need for medical staff to manually press and fix the main body 1 of the breathing mask, which improves the applicability of the main body 1 of the breathing mask.
[0023] Example 2: Figure 2 and 4 As shown, an airbag 11 is installed on the side of the main body 1 of the breathing mask. Two inflation ports 13 are opened at one end of the airbag 11, and an inflation tube 14 is installed at one end of the inflation port 13. When the main body 1 of the breathing mask needs to be worn on the patient's face, the inflation device is inserted into the inflation tube 14 through the inflation port 13 at the bottom of the airbag 11 to inflate the airbag 11, so that the airbag 11 expands to a certain volume. Then the main body 1 of the breathing mask is placed on the patient's face, and the face is covered by the airbag 11. It can adapt to patients with different face shapes. The other features are the same as in embodiment 1.
[0024] The working principle is as follows: When the main body of the breathing mask 1 needs to be worn on the patient's face, the inflation device is connected to the inflation tube 14 through the inflation port 13 at the bottom of the air bag 11 to inflate the air bag 11 to a certain volume. Then, the main body of the breathing mask 1 is placed on the patient's face, and the face is covered by the air bag 11. It can adapt to patients with different face shapes. Pulling the strap 7 at one end of the fixing strap 2 will pull the two connecting straps 5 out of the movable cavity 3. At this time, the rotating rod 4 rotates in the movable cavity 3, and the two ends of the torsion spring 6 are twisted to form a... With a certain rebound force, the strap 7 is placed on the back of the patient's head and then released. The torsion spring 6 returns to its original position, causing the rotating rod 4 to rotate, which in turn causes the connecting strap 5 to wrap around the side of the rotating rod 4. The elasticity of the torsion spring 6 binds the strap 7 to the patient's head. The patient's face is covered and fixed by the breathing mask body 1 and the air bag 11. At this time, anesthetic gas can be delivered to the patient's mouth and nose through the air inlet 12 through the anesthesia tube 10 and the oxygen tube 9 for anesthesia. There is no need for medical staff to manually press and fix the breathing mask body 1, which improves the applicability of the breathing mask body 1.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An anesthesia breathing mask, comprising a breathing mask body (1), characterized in that: The main body (1) of the breathing mask is equipped with symmetrical fixing straps (2) on its side. The fixing straps (2) have a movable cavity (3) inside. A rotating rod (4) is rotatably installed in the movable cavity (3). A connecting strap (5) is installed on the side of the rotating rod (4). A torsion spring (6) is installed in the rotating rod (4). One end of the fixing strap (2) is provided with a binding strap (7). The two ends of the binding strap (7) are connected to the two connecting straps (5).
2. The anesthesia breathing mask according to claim 1, characterized in that: One end of the breathing mask body (1) is equipped with a connecting tube (8), one end of the connecting tube (8) is equipped with an oxygen tube (9), and the other end of the connecting tube (8) is equipped with an anesthesia tube (10).
3. The anesthesia breathing mask according to claim 1, characterized in that: An airbag (11) is installed on the side of the main body (1) of the breathing mask. Two inflation ports (13) are opened at one end of the airbag (11), and an inflation tube (14) is installed at one end of the inflation port (13).
4. The anesthesia breathing mask according to claim 1, characterized in that: The main body (1) of the breathing mask has an air inlet (12) which is connected to the connecting pipe (8).
5. An anesthesia breathing mask according to claim 1, characterized in that: One end of the connecting band (5) is wrapped around the side of the rotating rod (4), and the torsion spring (6) is connected to the inner wall of the rotating rod (4).
6. An anesthesia breathing mask according to claim 1, characterized in that: The main body (1) of the breathing mask is made of PVC.