Disposable laryngeal mask

Abstract

The utility model discloses a disposable laryngeal mask which comprises a balloon and an inflation tube fixedly connected to one side of the balloon, a connector is fixedly connected to the end, opposite to the balloon, of the inflation tube, an annular plate is fixedly connected to the interior of the connector, and a connecting tube is slidably connected to the interior of the annular plate. A mounting plate is movably connected to the side, close to the inflation pipe, of the annular plate in the connector, a sealing gasket of an annular structure is fixedly connected to the side, close to the annular plate, of the mounting plate, the end, close to the mounting plate, of the connecting pipe is fixedly connected with the outer side of the mounting plate, and the other end of the connecting pipe is fixedly connected with a pipe body extending to the outer side of the connector. And a plurality of air inlets and air outlets are symmetrically formed in the connecting pipe at equal intervals. By means of the structure, the whole structure is simple, operation is convenient and fast, the balloon can be expanded and tightly attached to the throat of a patient through inflation, inflation and deflation of the balloon are easily controlled, operation is convenient in the first-aid and anesthesia process, and use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a disposable laryngeal mask. Background Technology

[0002] A disposable laryngeal mask airway is an important medical device used for airway management, widely applied in anesthesia, emergency care, and intensive care. Its main function is to ensure a stable airway patency when a patient is anesthetized or experiencing respiratory distress, preventing airway obstruction or aspiration.

[0003] In the prior art, a search revealed a Chinese patent disclosing a disposable laryngeal mask airway (LMA), application number 202321950689.5. This patent mainly includes a LMA cannula, with a stoma cuff fitted to the end of the cannula. The stoma cuff is connected to an air pump via an inflation tube. The LMA cannula has a U-shaped cross-section with a recess on one side, and a bronchoscope insertion channel is provided at the connection between the LMA cannula and the stoma cuff in the recess. While the aforementioned utility model includes an inflation tube for inflation, it only provides the inflation tube and lacks a convenient inflation mechanism. This means that during use, medical personnel must connect the inflation tube to an external air source (such as a syringe) to inflate the air, increasing the complexity and inconvenience of the operation. In emergency situations or during anesthesia, this additional step may delay treatment and pose unnecessary risks to the patient. Therefore, this utility model provides a disposable laryngeal mask airway to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a disposable laryngeal mask with a simple overall structure and convenient operation. Inflation allows the balloon to expand and fit tightly against the patient's larynx, and the inflation and deflation of the balloon can be easily controlled, making it convenient to operate during emergency treatment and anesthesia.

[0005] To achieve the above objectives, a disposable laryngeal mask is provided, comprising a balloon and an inflation tube fixedly connected to one side of the balloon. A connector is fixedly connected to the end of the inflation tube opposite to the balloon. A circular ring plate is fixedly connected inside the connector. A connecting tube is slidably connected inside the circular ring plate. A mounting plate is movably connected inside the connector, on the side of the circular ring plate near the inflation tube. A circular ring-shaped sealing gasket is fixedly connected to the side of the mounting plate near the circular ring plate. One end of the connecting tube near the mounting plate is fixedly connected to the outside of the mounting plate. The other end of the connecting tube is fixedly connected to a tube extending to the outside of the connector. Multiple air inlets and outlets are symmetrically and equidistantly opened inside the connecting tube. Multiple through holes are symmetrically and equidistantly opened inside the connector, on the side of the circular ring plate away from the mounting plate. A piston is slidably connected inside the tube. A handle extending to the outside of the tube is fixedly connected to the side of the piston away from the connecting tube.

[0006] According to the disposable laryngeal mask, a fixing rod is fixedly connected inside the connector and on the side near the mounting plate, and a spring is fixedly connected between the fixing rod and the mounting plate.

[0007] According to the disposable laryngeal mask, a sealing ring is fixedly connected to the inner ring of the annular plate, and the connecting tube is slidably connected to the sealing ring.

[0008] According to the disposable laryngeal mask, the air inlet, air outlet, and through hole are all arranged in a circular array structure.

[0009] According to the disposable laryngeal mask, both the balloon and the inflation tube are made of silicone.

[0010] According to the disposable laryngeal mask, both the sealing gasket and the sealing ring are made of polyurethane.

[0011] This utility model has the following beneficial effects:

[0012] 1. Compared with existing technologies, this disposable laryngeal mask has a simple overall structure and is easy to operate. It avoids the troublesome problem of needing to connect the inflation tube to an external inflation source for inflation. By inflating the balloon and closely fitting it to the patient's larynx, the inflation and deflation of the balloon can be easily controlled, making it convenient to operate during emergency treatment and anesthesia, and more convenient to use.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the front sectional view of the disposable laryngeal mask of this utility model;

[0016] Figure 2 This utility model is a disposable laryngeal mask. Figure 1 Enlarged structural diagram at point A in the middle;

[0017] Figure 3 This utility model is a disposable laryngeal mask. Figure 2 Enlarged structural diagram at point B;

[0018] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the inflation tube of the disposable laryngeal mask of this invention in the inflated state.

[0019] Figure 5 This utility model is a disposable laryngeal mask. Figure 4 Enlarged structural diagram at point C.

[0020] Legend:

[0021] 1. Balloon; 2. Inflation tube; 3. Connector; 4. Fixing rod; 5. Spring; 6. Mounting plate; 7. Through hole; 8. Tube body; 9. Handle; 10. Piston; 11. Inlet; 12. Outlet; 13. Sealing gasket; 14. Circular plate; 15. Sealing ring; 16. Connecting tube. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-5 This utility model embodiment of a disposable laryngeal mask includes a balloon 1 and an inflation tube 2 fixedly connected to one side of the balloon 1. A connector 3 is fixedly connected to the end of the inflation tube 2 opposite to the balloon 1. A circular ring plate 14 is fixedly connected inside the connector 3. A connecting tube 16 is slidably connected inside the circular ring plate 14. An installation plate 6 is movably connected inside the connector 3 and on the side of the circular ring plate 14 near the inflation tube 2. A fixing rod 4 is fixedly connected inside the connector 3 and on the side of the installation plate 6. A spring 5 is fixedly connected between the fixing rod 4 and the installation plate 6. The elastic force of the spring 5 provides a restoring force for the installation plate 6. A circular sealing gasket 13 is fixedly connected to the side of the installation plate 6 near the circular ring plate 14. The sealing gasket 13 seals the connection between the installation plate 6 and the circular ring plate 14, thereby ensuring the sealing effect of the inflation tube 2. One end of the connecting pipe 16 near the mounting plate 6 is fixedly connected to the outside of the mounting plate 6, and the other end of the connecting pipe 16 is fixedly connected to a pipe body 8 extending to the outside of the connector 3. Multiple air inlets 11 and air outlets 12 are symmetrically and evenly spaced inside the connecting pipe 16. Multiple through holes 7 are symmetrically and evenly spaced inside the connector 3, located on the side of the annular plate 14 away from the mounting plate 6. The through holes 7 are adjacent to the air inlets 11 to ensure communication between the air inlets 11 and the outside air. The air inlets 11, air outlets 12, and through holes 7 are all arranged in a circular array to increase the number of air inlets 11, air outlets 12, and through holes 7, ensuring smooth gas flow. A piston 10 is slidably connected inside the pipe body 8, and a handle 9 extending to the outside of the pipe body 8 is fixedly connected to the side of the piston 10 away from the connecting pipe 16.

[0024] When inflating the balloon 1, the air inlet 11 is positioned opposite the through hole 7 and located on one side of the annular plate 14. At this time, the air outlet 12 is located inside the annular plate 14 and is sealed. Operating the handle 9 moves the piston 10 to the right, allowing for the evacuation of air from the tube 8. After evacuation, the tube 8 is pushed to the left, simultaneously pushing the mounting plate 6 to the left and separating it from the annular plate 14 under the action of the connecting pipe 16. At this time, the air outlet 12 is located between the mounting plate 6 and the annular plate 14, and the air inlet 11 is located inside the annular plate 14 and is sealed. Operating the handle 9 pushes the piston 10 to the left, allowing for the venting of air from the tube 8. Gas can then be delivered to the balloon 1 through the air outlet 12 and the inflation tube 2, thus completing the inflation of the balloon 1. After inflation, releasing the tube 8 allows the mounting plate 6 to reset under the action of the spring 5. The sealing gasket 13 seals the connection between the mounting plate 6 and the annular plate 14, thus achieving a closed state for the balloon 1. The overall structure is simple and easy to operate. Inflation allows the balloon 1 to expand and fit tightly against the patient's throat, making inflation and deflation of the balloon 1 easy to control. This facilitates operation during emergency treatment and anesthesia, making it more convenient to use.

[0025] To ensure the sealing effect of the air inlet 11 and the air outlet 12, a sealing ring 15 is fixedly connected to the inner ring of the annular plate 14, and the connecting pipe 16 is slidably connected to the sealing ring 15. When the air inlet 11 or the air outlet 12 is located inside the annular plate 14, it is sealed by the sealing ring 15, so that the sealing effect of the air inlet 11 and the air outlet 12 is better.

[0026] Both the balloon 1 and the inflation tube 2 are made of silicone, while the laryngeal mask is made of latex-free medical-grade silicone rubber, which is soft, comfortable, reduces mucosal damage, and enhances sealing. The sealing gasket 13 and the sealing ring 15 are both made of polyurethane, providing a good seal while being relatively economical and suitable for single use.

[0027] Working principle: When inflating the balloon 1, the air inlet 11 is positioned opposite the through hole 7 and located on one side of the annular plate 14. At this time, the air outlet 12 is located inside the annular plate 14 and is sealed. The operating handle 9 drives the piston 10 to move to the right, which can realize the air extraction operation inside the tube 8. After the air extraction is completed inside the tube 8, push the tube 8 to move to the left. Under the action of the connecting pipe 16, push the mounting plate 6 to move to the left and separate it from the annular plate 14. At this time, the air outlet 12 is located between the mounting plate 6 and the annular plate 14, and the air inlet 11 is located inside the annular plate 14 and is sealed. The operating handle 9 pushes the piston 10 to move to the left, which can realize the air exhaust operation of the tube 8. Thus, gas can be delivered to the inside of the balloon 1 through the air outlet 12 and the inflation pipe 2, thereby completing the inflation of the balloon 1. After inflation, releasing the tube 8 allows the mounting plate 6 to reset under the action of the spring 5. The sealing gasket 13 seals the connection between the mounting plate 6 and the annular plate 14, thus achieving a closed state for the balloon 1. The overall structure is simple and easy to operate. Inflation allows the balloon 1 to expand and fit tightly against the patient's throat, making inflation and deflation of the balloon 1 easy to control. This facilitates operation during emergency treatment and anesthesia, making it more convenient to use.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A disposable laryngeal mask, characterised in that, The utility model provides a balloon (1) and fixed connection in one side of balloon (1) inflation pipe (2), inflation pipe (2) is fixedly connected with the joint (3) opposite one end of balloon (1), the inside fixed connection of joint (3) has circular ring plate (14), the inside sliding connection of circular ring plate (14) has connecting pipe (16), the inside of joint (3) and be located circular ring plate (14) near inflation pipe (2) one side swing -jointed mounting plate (6), the one side fixed connection of mounting plate (6) near circular ring plate (14) has the sealing gasket (13) of circular ring structure, the one end of connecting pipe (16) near mounting plate (6) is fixedly connected with mounting plate (6) outside, the other end of connecting pipe (16) is fixedly connected with the pipe body (8) of extending to the outside of joint (3), the inside equidistance symmetry of connecting pipe (16) is opened a plurality of air inlet (11) and air outlet (12), the inside of joint (3) and be located circular ring plate (14) away from mounting plate (6) one side equidistance symmetry is opened a plurality of through -hole (7), the inside sliding connection of pipe body (8) has piston (10), the one side fixed connection of piston (10) away from connecting pipe (16) has handle (9) of extending to the outside of pipe body (8).

2. The disposable laryngeal mask of claim 1, wherein, The inside fixed connection of joint (3) and be located mounting plate (6) one side has fixed link (4), and the fixed connection between fixed link (4) and mounting plate (6) has spring (5).

3. The disposable laryngeal mask of claim 2, wherein, The inner ring fixed connection of circular ring plate (14) has sealing ring (15), and connecting pipe (16) is slidingly connected with sealing ring (15).

4. The disposable laryngeal mask of claim 3, wherein, The air inlet (11), air outlet (12) and through -hole (7) are all circular array structure.

5. The disposable laryngeal mask of claim 4, wherein, The balloon (1) and inflation pipe (2) are all silica gel material.

6. The disposable laryngeal mask of claim 1, wherein, The sealing gasket (13) and sealing ring (15) are all polyurethane material.

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