laryngeal mask

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, disclose a laryngeal mask, it includes the air pipe, the sleeve bag, installs in the air pipe one end, and the direction of sleeve bag insertion into the oral cavity is as the insertion direction, and the air pipe has the ventilation chamber that matches with the air pipe in the air pipe, and the ventilation chamber opens to the sleeve bag, the flexible conduit is reversely installed in the other end of air pipe along the insertion direction, the flexible conduit is reversely connected with the external joint along the insertion direction, and the external joint is reversely connected with the breathing circuit along the insertion direction. The utility model utilizes the bendability of the flexible conduit, makes the bendability of the connection between the external joint and the sleeve bag, when the breathing circuit is pressed and is deviated or the laryngeal mask and the breathing circuit are pulled apart due to the body position adjustment of the patient in the operation, the flexible conduit provides the buffer interval between the laryngeal mask and the breathing circuit, reduces or avoids the displacement, guarantees the relatively stable state of the laryngeal mask in the oral cavity, guarantees the safety of operation.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to laryngeal masks. Background Technology

[0002] With the advent of the concept of comfortable medical care, anesthesiologists are paying more and more attention to patient comfort when choosing airway management tools for general anesthesia. For example, the laryngeal mask airway, as a supraglottic ventilation device, is widely used because it can provide effective ventilation without invading the trachea.

[0003] Among the currently used types of laryngeal masks, the visual laryngeal mask is considered to be a relatively safe type due to its visibility. However, its rigid material makes it inflexible, which means that when subjected to external forces (such as the breathing circuit), the breathing circuit may be compressed and shifted during surgery, or the laryngeal mask may be pulled between the laryngeal mask and the breathing circuit due to changes in the patient's body position, thus causing displacement. This makes it impossible to ensure that the laryngeal mask remains in a relatively stable state in the patient's mouth, ultimately affecting the safety of the surgery. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a laryngeal mask airway (LMA). The purpose is to utilize the flexibility of the flexible catheter to allow for bending between the external connector and the cuff during connection. Therefore, in cases where the breathing circuit is compressed and shifted during surgery, or when the patient's position is adjusted causing tension between the LMA and the breathing circuit, the flexible catheter can provide a buffer zone between the LMA and the breathing circuit, reducing or preventing displacement and ensuring that the LMA remains relatively stable in the patient's mouth to the greatest extent possible, thus guaranteeing the safety of the surgery.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A laryngeal mask, comprising, Ventilation tube, A cuff is installed at one end of the airway tube, with the direction in which the cuff is inserted into the oral cavity as the insertion direction. The airway tube has an airway chamber that matches the airway tube and the airway chamber opens toward the cuff. A flexible catheter is installed in the opposite direction of insertion at the other end of the ventilation tube. The flexible catheter is connected to an external connector in the opposite direction of insertion. The flexible catheter has a catheter chamber that matches the flexible catheter. One end of the ventilation chamber is open in the catheter chamber, and the other end of the catheter chamber is open in the external connector.

[0006] Preferably, the flexible conduit is a corrugated pipe.

[0007] Preferably, the cuff has a cuff base, the edge of the cuff base has a cuff base interface, and the cuff base interface is connected to an inflation tube.

[0008] Preferably, the other end of the ventilator is provided with a ventilator connector, which is connected to the flexible conduit. The ventilator connector also has two connection holes, serving as a first connection port and a second connection port.

[0009] Preferably, the first connection port is connected to a flushing pipe.

[0010] Preferably, the first connection port is connected to a gastric tube.

[0011] Preferably, the cuff has a cuff chamber, which is open along the insertion direction. The venting chamber facing the cuff serves as the cuff's air outlet and through hole. The through hole corresponds to the second connection port. A camera is installed in the through hole, and the camera's shooting unit faces the cuff chamber.

[0012] Furthermore, the camera passes sequentially through the second connection port, the ventilation chamber, and the through hole along the insertion direction, and is installed at the through hole. The wires on the camera enter the ventilation chamber through the second connection port.

[0013] Furthermore, the camera is attached to the through hole.

[0014] Preferably, the cuff has a cuff chamber, which is open along the insertion direction. The ventilation chamber faces the opening of the cuff and serves as the cuff's air outlet. A camera is installed at the second connection port, and the camera's shooting unit faces the ventilation chamber.

[0015] Furthermore, the camera is affixed to the second connector.

[0016] Preferably, the laryngeal mask is made of a transparent material.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, the ventilation tube and cuff are installed at one end of the ventilation tube, with the direction of insertion of the cuff into the oral cavity as the insertion direction. The ventilation tube has a ventilation chamber that matches the ventilation tube and opens towards the cuff. A flexible catheter is installed at the other end of the ventilation tube in the opposite direction of insertion. The flexible catheter is connected to an external connector in the opposite direction of insertion, and the external connector is connected to a breathing circuit in the opposite direction of insertion. The flexible catheter has a catheter chamber that matches the flexible catheter. One end of the ventilation chamber is open in the catheter chamber, and the other end of the catheter chamber is open in the external connector. The purpose is to utilize the flexibility of the flexible catheter to allow for bending between the external connector and the cuff during connection. Therefore, in the event of compression and displacement of the breathing circuit during surgery or pulling between the laryngeal mask and the breathing circuit due to patient position adjustment, the flexible catheter can provide a buffer zone between the laryngeal mask and the breathing circuit, reducing or preventing displacement and ensuring that the laryngeal mask remains relatively stable in the patient's oral cavity to the greatest extent possible, thus ensuring the safety of the surgery.

[0018] 2. Because the flexible conduit in this utility model is a corrugated pipe, the purpose is to utilize the corrugations on the corrugated pipe to enable the flexible conduit to achieve bending performance.

[0019] 3. Because the cuff in this utility model has a cuff base, and the edge of the cuff base has a cuff base interface, and the cuff base interface is connected to an inflation tube, the purpose of which is that the inflation tube can inflate the cuff base cavity on the cuff base, so that the cuff base is filled and expanded to support the oral cavity, thereby establishing an air supply channel. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the flexible conduit in this utility model after bending. Figure 2 This is a schematic diagram of the flexible conduit of this utility model in its unbent state. Figure 3 This is a partial exploded view of the present invention; Figure 4 for Figure 3 A schematic diagram of the structure of part A; In the diagram: 1. Flexible conduit; 2. External connector; 3. Ventilation tube; 31. Ventilation tube connector; 31. Second connection port; 4. Inflation tube; 5. Cuff; 51. Cuff base; 53. Cuff chamber; 52. Cuff outlet; 54. Through hole; 6. Flushing tube; 61. Flushing tube connector. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following embodiments are described in detail with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.

[0022] like Figure 1 As shown, a laryngeal mask, made of a transparent material, includes, Ventilation tube 3, The cuff 5 is installed at one end of the ventilation tube 3, and the direction in which the cuff 5 is inserted into the oral cavity is taken as the insertion direction D. The ventilation tube 3 has a ventilation chamber that matches the ventilation tube 3, and the ventilation chamber opens toward the cuff 5. Flexible conduit 1, specifically a corrugated pipe (such as...) Figure 1-3 As shown, the purpose is to utilize the corrugations on the corrugated tube to enable the flexible conduit 1 to achieve bending performance. It is installed in the opposite direction of insertion D at the other end of the ventilation tube 3. The flexible conduit 1 is connected to the external connector 2 in the opposite direction of insertion D. The flexible conduit 1 has a conduit chamber that matches the flexible conduit 1. One end of the ventilation chamber 3 is open in the conduit chamber, and the other end of the conduit chamber is open in the external connector 2. It should be noted that the external connector 2 is connected to the breathing circuit, which adopts existing technology, such as a ventilator.

[0023] For example, when the breathing circuit is compressed and shifted during surgery or when the laryngeal mask and breathing circuit are pulled due to the patient's body position adjustment, the flexible catheter 1 can provide a buffer zone between the laryngeal mask and breathing circuit, reduce or avoid displacement, and ensure that the laryngeal mask remains relatively stable in the patient's mouth to the greatest extent possible, thus ensuring the safety of the surgery. The cuff 5 has a cuff base 51, and the edge of the cuff base 51 has a cuff base interface. The cuff base interface is connected to an inflation tube 4. It should be noted that the inflation tube 4 is pluggable and connected to the cuff base interface. It should also be noted that the cuff base 51 has a cuff base chamber, and the cuff base interface is connected to the cuff base chamber. Thus, after the cuff is inserted into the oral cavity, the inflation tube 4 can inflate the cuff base chamber, causing the cuff base 51 to inflate (similar to inflating a balloon) to support the oral cavity and establish an air supply channel. The other end of the ventilation tube 3 is provided with a ventilation tube connector 31, which is connected to the flexible conduit 1. The ventilation tube connector 31 also has two connection holes, serving as the first connection port and the second connection port 311. Specifically, the flexible conduit 1 is connected to the ventilation tube connector 31 by a plug-in type. The first connection port is connected to the flushing pipe 6. Specifically, the flushing pipe 6 is plugged in and connected to the first connection port. One end of the flushing pipe 6 is provided with a flushing pipe connector 61. The end of the flushing pipe connector 61 is also provided with a cap. By opening or closing the cap, the flushing pipe connector 61 can be connected to or isolated from the outside.

[0024] In another embodiment, the first connection port is connected to a gastric tube; specifically, the gastric tube is plugged into the first connection port (not shown in the figure); for example, Figure 1-4 As shown, the cuff 5 has a cuff chamber 53, which is open along the insertion direction D. The venting chamber facing the cuff 5 serves as the cuff outlet 52 and the through hole 54. The through hole 54 corresponds to the second connection port 311. The camera is installed in the through hole 54 by pasting (the camera adopts a shape that matches the through hole, so it is not shown in the figure). The camera's shooting unit faces the insertion direction D.

[0025] The camera passes through the second connection port 311, the ventilation chamber and the through hole 54 in sequence along the insertion direction D, and is installed at the through hole 54. The wires on the camera enter the ventilation chamber through the second connection port 311.

[0026] In use, the base of the cuff is inserted into the oral cavity along the insertion direction to establish an air intake channel. Then, the gastric tube installed on the air tube connector is used to enter the stomach through the air chamber, the cuff chamber and the oral cavity. The camera unit installed at the through hole 54 is used to take pictures of the oral cavity.

[0027] In another embodiment, the first connection port is connected to a gastric tube. Specifically, the gastric tube is connected to the first connection port in a plug-in manner (not shown in the figure). The cuff 5 has a cuff chamber 53, which is open along the insertion direction D. The ventilation chamber faces the opening of the cuff 5 as the cuff outlet 52. A camera is installed in the second connection port 311 (specifically, it is fixed by adhesive, and the camera adopts a shape that matches the second connection port 311, so it is not shown in the figure). The camera's shooting unit faces into the ventilation chamber.

[0028] When using this method, the base of the cuff is inserted into the oral cavity along the insertion direction to establish an air intake channel. Then, the gastric tube installed on the air tube connector enters the stomach through the air chamber, the cuff chamber and the oral cavity, and the camera unit installed at the second connector 311 takes pictures of the oral cavity.

[0029] The above embodiments are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Various modifications or variations that can be made by those skilled in the art without creative effort within the scope of the appended claims are still within the scope of protection of this patent.

Claims

1. A laryngeal mask airway, comprising an airway tube and a cuff, mounted at one end of the airway tube, with the direction of insertion of the cuff into the oral cavity as the insertion direction, and the airway tube having an airway chamber matching the airway tube, the airway chamber opening toward the cuff, characterized in that, Also includes: A flexible catheter is installed in the opposite direction of insertion at the other end of the ventilation tube. The flexible catheter is connected to an external connector in the opposite direction of insertion. The flexible catheter has a catheter chamber that matches the flexible catheter. One end of the ventilation chamber is open in the catheter chamber, and the other end of the catheter chamber is open in the external connector.

2. The laryngeal mask according to claim 1, characterized in that: The cuff has a cuff base, and the edge of the cuff base has a cuff base interface, which is connected to an inflation tube.

3. The laryngeal mask according to claim 1, characterized in that: The other end of the ventilator is provided with a ventilator connector, which is connected to the flexible conduit. The ventilator connector also has two connection holes, serving as a first connection port and a second connection port.

4. The laryngeal mask according to claim 3, characterized in that: The first connection port is connected to a flushing pipe.

5. The laryngeal mask according to claim 3, characterized in that: The first connection port is connected to a gastric tube.

6. The laryngeal mask according to claim 3, characterized in that: The cuff has a cuff chamber, which is open along the insertion direction D. The venting chamber faces the cuff and serves as the cuff outlet and through hole. The through hole corresponds to the second connection port. A camera is installed in the through hole, and the camera's shooting unit faces the cuff chamber.

7. The laryngeal mask according to claim 6, characterized in that: The cuff has a cuff chamber, which is open along the insertion direction D. The ventilation chamber faces the opening of the cuff and serves as the cuff's air outlet. A camera is installed at the second connection port, and the camera's shooting unit faces the ventilation chamber.

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