A laryngeal mask special for bronchoscope anesthesia

Abstract

The utility model discloses a laryngeal mask special for bronchoscope anesthesia cancels laryngeal mask head end anti-aspiration hole, solves the problem of difficult to place caused by laryngeal mask head end too thick, and optimizes laryngeal mask handle to improve the stability and supportability of placement. Its technical scheme points are: a laryngeal mask special for bronchoscope anesthesia, including laryngeal mask head and cover handle part, the laryngeal mask head includes base and ring cover air bag, and the base is integrally connected with ring cover air bag, and the base is equipped with flow guide hole, the flow guide hole extends to the inboard of ring cover air bag and forms cover mouth, the cover handle part is connected the base, and the inside of cover handle part is equipped with flow guide channel and inflation channel, the flow guide channel is communicated flow guide hole, the inflation channel is communicated to ring cover air bag to be used for the inflation expansion and deflation of ring cover air bag, and the cover handle part has the cover handle main part of the non-circular cross section outer contour, can hinder or alleviate the rotation, displacement problem of cover handle in the mouth of patient.

Description

Technical Field

[0001] This utility model relates to a laryngeal mask, specifically a laryngeal mask for bronchoscopic anesthesia. Background Technology

[0002] In modern medical technology, bronchoscopic anesthesia is a key diagnostic and treatment aid widely used in the diagnosis and treatment of respiratory diseases. It involves inserting a bronchoscope through the larynx into the trachea to directly observe the internal airway, while simultaneously using anesthesia to ensure the patient receives examination and treatment painlessly or with minimal pain. A laryngeal mask airway (LMA) forms the channel for inserting the bronchoscope and allows for the administration of anesthetic. Currently available LMA products generally have an anti-aspiration hole at the tip, resulting in a relatively large diameter at the tip, increasing the difficulty of insertion. Especially when passing through the epiglottis, the larger tip can easily compress the epiglottis, potentially causing patient discomfort, hindering successful insertion, or even leading to insertion failure, increasing surgical risks and operation time. Furthermore, the LMA handle is often tubular and lacks sufficient support. During surgery, patient biting, changes in position, or manipulation by medical staff can easily deform or displace the handle, affecting normal anesthesia procedures.

[0003] Therefore, how to solve the problem of difficult insertion caused by an excessively thick laryngeal mask tip during bronchoscopic anesthesia, while improving the support and stability of the mask handle, has become an urgent problem to be solved in this field. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background art mentioned above by providing a laryngeal mask for bronchoscopic anesthesia. This invention eliminates the anti-aspiration hole at the head end of the laryngeal mask, solves the problem of difficult insertion caused by the excessively thick head end of the laryngeal mask, and optimizes the laryngeal mask handle to improve insertion stability and support.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: A laryngeal mask airway (LMA) for bronchoscopic anesthesia includes a LMA head and a handle. The LMA head includes a base and an annular airbag. The base is integrally connected to the annular airbag and has a flow guide hole that extends to the inside of the annular airbag and forms the opening. The handle is connected to the base and has a flow guide channel and an inflation channel inside. The flow guide channel communicates with the flow guide hole, and the inflation channel communicates with the annular airbag (for inflation and deflation of the annular airbag). The handle has a handle body with a non-circular cross-sectional outer contour.

[0006] Preferably, the laryngeal mask head includes a head end and a tail end, the ring-shaped airbag has a wide end corresponding to the tail end and a narrow end corresponding to the head end, and the ring-shaped airbag gradually narrows smoothly from the wide end to the narrow end; the mask handle includes a front end and a rear end, the front end of the mask handle is connected to the tail end of the laryngeal mask head, and the rear end of the mask handle is provided with an anesthesia machine interface.

[0007] Preferably, the inflation channel is configured as an inner sleeve nested inside the cover handle, the inner sleeve extending from the rear end of the cover handle and connected to an inflation port.

[0008] Preferably, the outer hub of the cover handle body has an elliptical cross-section.

[0009] Preferably, the cover handle body is configured as a wide, flat cylindrical structure, and the outer wall of the cover handle body is provided with an arc-shaped wall surface, which is connected to the other surfaces of the outer wall of the cover handle body by an arc transition.

[0010] Preferably, the cover handle body includes a support layer and a contact layer, with the contact layer covering the outside of the support layer and made of a flexible, skin-friendly material.

[0011] Preferably, the support layer is provided with a bending adjustment part, which is configured as a metal corrugated pipe body that can be bent and shaped under external force.

[0012] Preferably, the cover handle portion is further provided with a transition neck, the transition neck being made of a flexible material, the rear end of the transition neck being connected to the cover handle body, and the front end of the transition neck being connected to the base.

[0013] Compared with existing technologies, the laryngeal mask airway for bronchoscopic anesthesia using the above-mentioned technical solution has the following beneficial effects: For bronchoscopic anesthesia, since the bronchoscope can directly visualize the trachea, even if aspiration occurs, it can be directly suctioned. This is more effective and direct than leaving an anti-aspiration hole. Therefore, the anti-aspiration hole at the front end of this laryngeal mask airway for bronchoscopic anesthesia can be eliminated. Removing the anti-aspiration hole at the head end of the laryngeal mask airway allows the cuff at the head end to be smaller and easier to insert, and can effectively avoid pressing on the epiglottis, making it easier to insert the bronchoscope. The handle part adopts a non-cylindrical handle body, which can prevent or reduce rotation in the patient's mouth, so as to avoid rotation and displacement problems.

[0014] The laryngeal mask handle features a double-layer design with a support layer and a contact layer. The support layer prevents the handle from deforming due to the patient biting down or during adjustments, ensuring stability of the laryngeal mask in the mouth. The soft, skin-friendly contact layer enhances patient comfort. The bending adjustment section allows for flexible adjustment of the handle's angle, making it more versatile. The flexible transition neck allows for a degree of cushioned movement of the mask head relative to the handle, better protecting the patient's throat. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the laryngeal mask for bronchoscopic anesthesia of this utility model.

[0016] Figure 2 This is a schematic diagram of the piping structure of the laryngeal mask head and handle in Example 1.

[0017] Figure 3 This is a schematic cross-sectional view of the main body of the cover handle in Example 1.

[0018] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the laryngeal mask for bronchoscopic anesthesia of this utility model.

[0019] Reference numerals: 1. Laryngeal mask head; 10. Base; 100. Flow port; 11. Ring mask airbag; 110. Mask opening; 2. Mask handle; 20. Mask handle body; 201. Flow channel; 202. Inner cannula; 203. Support layer; 2030. Bending adjustment part; 204. Contact layer; 21. Anesthesia machine interface; 22. Inflation interface; 23. Transition neck. Detailed Implementation

[0020] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0021] Example 1: like Figures 1 to 3 The laryngeal mask airway (LMA) for bronchoscopic anesthesia shown includes a LMA head 1 and a handle 2. The LMA head 1 includes a base 10 and an annular airbag 11. The base 10 and the annular airbag 11 are integrally connected. The base 10 has a drainage hole 100 that extends to the inside of the annular airbag 11 and forms an opening 110. The LMA head 1 includes a head end and a tail end. The annular airbag 11 has a wide end corresponding to the tail end and a narrow end corresponding to the head end. The annular airbag 11 gradually narrows smoothly from the wide end to the narrow end. The annular airbag 11 uses the same silicone material as the existing first-generation LMA, which minimizes damage to the pharyngeal skin and mucous membranes and provides excellent alignment.

[0022] The handle 2 includes a front end and a rear end. The front end of the handle 2 is fixedly connected to the base 10 at the tail end of the laryngeal mask head 1. The handle 2 has a flow channel 201 and an inflation channel inside. The flow channel 201 is connected to the flow hole 100. The rear end of the handle 2 is provided with an anesthesia machine interface 21. The flow channel 201 is connected to the anesthesia machine interface 21. The anesthetic is delivered to the pharynx through the anesthesia machine interface 21, the flow channel 201 and the flow hole 100.

[0023] The inflation channel is set as an inner sleeve 202 nested inside the cover handle 2. The inner sleeve 202 extends from the rear end of the cover handle 2 and is connected to an inflation port 22. The inner sleeve 202 is connected to the ring airbag 11 for inflation and deflation of the ring airbag 11.

[0024] The handle portion 2 has a handle body 20 with a non-circular cross-sectional outer contour. Specifically, the handle body 20 is configured as a wide, flat cylindrical structure, and the outer walls of the left and right opposite sides of the handle body 20 are configured as arc-shaped walls. The arc-shaped walls are connected to the other surfaces of the outer walls of the handle body 20 by arc transition. The cross-section of the handle body 20 is a rectangle with a rounded edge and a length greater than its width.

[0025] The cover handle body 20 includes a support layer 203 and a contact layer 204. The support layer 203 is made of metal, hard plastic, or hard resin. The contact layer 204 covers the outside of the support layer 203 and is made of a flexible, skin-friendly material, such as silicone. The support layer 203 has a bending adjustment part 2030, which is a metal bellows body that can be bent and shaped by external force. Manually bending the cover handle body 20 can cause the metal bellows body to bend. After being released, the metal bellows body is fixed in the bent shape and has a certain degree of support, so that the cover handle body 20 maintains the shape after angle adjustment.

[0026] Example 2: like Figure 4 As shown, this embodiment is based on the technical solution of embodiment 1. The technical differences between this embodiment and embodiment 1 are as follows: The handle portion 2 also includes a transition neck 23, which is made of a flexible material, such as elastic plastic, medical-grade silicone, or rubber. The rear end of the transition neck 23 is connected to the handle body 20, and the front end is connected to the base 10. The flexible transition neck 23 can bend and return to its original position under stress, allowing the laryngeal mask head 1 to swing relative to the handle body 20 to a certain extent, thus better protecting the patient's throat.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A laryngeal mask airway specifically for bronchoscopic anesthesia, characterized in that: The device includes a laryngeal mask head (1) and a handle (2). The laryngeal mask head (1) includes a base (10) and an annular airbag (11). The base (10) is integrally connected with the annular airbag (11). The base (10) is provided with a guide hole (100). The guide hole (100) extends to the inside of the annular airbag (11) and forms a mask opening (110). The handle (2) is connected to the base (10). The handle (2) is provided with a guide channel (201) and an inflation channel inside. The guide channel (201) is connected to the guide hole (100). The inflation channel is connected to the annular airbag (11). The handle (2) has a handle body (20) with a non-circular cross-sectional outer contour.

2. The laryngeal mask airway for bronchoscopic anesthesia according to claim 1, characterized in that: The laryngeal mask head (1) includes a head end and a tail end. The ring-shaped air bag (11) has a wide end corresponding to the tail end position and a narrow end corresponding to the head end position. The ring-shaped air bag (11) gradually narrows smoothly from the wide end to the narrow end. The mask handle (2) includes a front end and a rear end. The front end of the mask handle (2) is connected to the tail end of the laryngeal mask head (1), and the rear end of the mask handle (2) is provided with an anesthesia machine interface (21).

3. The laryngeal mask airway for bronchoscopic anesthesia according to claim 2, characterized in that: The inflation channel is configured as an inner sleeve (202) nested inside the cover handle (2), and the inner sleeve (202) extends out from the rear end of the cover handle (2) and is connected to an inflation port (22).

4. The laryngeal mask airway for bronchoscopic anesthesia according to claim 1, characterized in that: The outer hub of the cover handle body (20) has an elliptical cross-section.

5. The laryngeal mask airway for bronchoscopic anesthesia according to claim 1, characterized in that: The cover handle body (20) is configured as a wide and flat column structure. The outer wall of the cover handle body (20) is provided with an arc-shaped wall surface. The arc-shaped wall surface is connected to the other surfaces of the outer wall of the cover handle body (20) by an arc transition.

6. The laryngeal mask airway for bronchoscopic anesthesia according to claim 1, 4, or 5, characterized in that: The main body (20) of the cover handle includes a support layer (203) and a contact layer (204). The contact layer (204) is disposed on the outside of the support layer (203) and is made of a flexible and skin-friendly material.

7. The laryngeal mask airway for bronchoscopic anesthesia according to claim 6, characterized in that: The support layer (203) is provided with a bending adjustment part (2030), which is configured as a metal corrugated pipe body that can be bent and shaped by external force.

8. The laryngeal mask airway for bronchoscopic anesthesia according to claim 6, characterized in that: The cover handle (2) is also provided with a transition neck (23), which is made of a flexible material. The rear end of the transition neck (23) is connected to the cover handle body (20), and the front end of the transition neck (23) is connected to the base (10).

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