A laryngeal mask with a reinforcing rib structure

Abstract

This utility model provides a laryngeal mask with a reinforced structure, including a cuff, an inflation tube, and a ventilation tube. The ventilation tube is composed of a straight section, a curved section, and a connecting section connected in sequence. One end of the connecting tube has an air inlet, and the edge of the air inlet is surrounded by an annular reinforcing rib connected to the inner ring of the cuff. The outer wall of the inner curved side of the curved section has a strip-shaped reinforcing rib connected to the outer wall of the inner curved side of the connecting section. The annular reinforcing rib structure surrounding the air inlet enhances its rigidity, making the air inlet less prone to bending and folding, reducing the possibility of the air inlet shrinking or becoming blocked. By setting the strip-shaped reinforcing rib structure to connect the curved section and the connecting tube end of the ventilation tube, the rigidity of the curved section and the connecting section is improved, reducing the possibility of the cuff not fitting the larynx due to easy bending of the tubing structure, thus improving the overall ventilation effect of the laryngeal mask.

Description

Technical Field

[0001] This utility model relates to the field of laryngeal mask technology, specifically to a laryngeal mask with a reinforcing rib structure. Background Technology

[0002] A laryngeal mask airway (LMA) is a specialized artificial airway management technology, successfully developed and used clinically in the mid-1980s, and introduced to China in the 1990s. Significant progress has been made in the use of LMAs, and their application is becoming increasingly widespread. A LMA typically consists of an airway tube, a cuff, and an inflation tube, and is usually injection-molded from PVC material. One end of the airway tube connects to the ventilator, and the other end connects to the cuff. The inflation tube connects to the cuff and is used to inflate the cuff. However, in existing LMAs, bending or folding at the connection between the airway tube and the cuff can cause the airway to narrow or become blocked, leading to insufficient ventilation or airway obstruction. Furthermore, bending and folding are also common at the connection point between the airway tube and the cuff, causing the cuff to bend or fold accordingly. This can prevent the cuff from fitting snugly against the larynx, resulting in air leakage from the mouth or nose and affecting effective ventilation. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing a laryngeal mask with a reinforcing rib structure, thereby solving the problems described above.

[0004] This utility model provides a laryngeal mask with a reinforcing rib structure, including a cuff, an inflation tube, and a ventilation tube. The ventilation tube is composed of a straight tube section, a curved tube section, and a connecting tube section connected in sequence. One end of the connecting tube is provided with an air inlet. An annular reinforcing rib is provided around the edge of the air inlet. The annular reinforcing rib is connected to the inner ring of the cuff. A strip-shaped reinforcing rib is provided on the outer wall of the inner curved side of the curved tube section. The strip-shaped reinforcing rib is connected to the outer wall of the inner curved side of the connecting tube section.

[0005] Preferably, the strip reinforcing rib has an arc-shaped structure.

[0006] Preferably, the inner wall of the pipe on the outer bend side of the connecting pipe section is provided with a thickened bending-resistant layer.

[0007] Preferably, the outer wall of the front section of the inflation tube is connected to the strip reinforcing rib.

[0008] Preferably, the inflation tube is provided with a valve and an indicator balloon.

[0009] Preferably, a connecting plate is provided on the straight pipe section, and the connecting plate is provided with an arc-shaped groove for the inflation pipe to be inserted.

[0010] Preferably, the front end of the sheath is provided with a U-shaped thickened pad.

[0011] Preferably, the front end of the sac is provided with an inner tube, and a drainage tube is connected to the inner tube.

[0012] Preferably, the outer wall of the drainage tube is connected to the outer wall of the ventilation duct.

[0013] Compared with the prior art, the present invention has the following advantages: The rigidity of the airway is enhanced by the ring-shaped reinforcing ribs surrounding the airway edge, making it less prone to bending and folding, thus reducing the possibility of the airway shrinking or becoming blocked. Furthermore, the rigidity of the curved sections and connecting pipe ends on the airway tube is improved by the strip-shaped reinforcing ribs, which reduces the possibility of the cuff not fitting properly against the larynx due to the easy bending of the tubing structure, thereby improving the overall ventilation effect of the laryngeal mask airway. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the laryngeal mask structure according to a certain embodiment of the present invention; Figure 2 for Figure 1 A cross-sectional view of the laryngeal mask shown; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the internal structure of the sheath in one embodiment of the present invention; Figure 5 This is a schematic diagram of a laryngeal mask structure with an inner tube and a drainage tube in one embodiment of the present invention; Figure 6 for Figure 5 A cross-sectional view of the laryngeal mask shown; Figure 7 for Figure 6 Enlarged view of point B in the middle; Figure 8 This is a schematic diagram of the internal structure of the sheath with an inner tube structure in a certain embodiment of the present invention; Figure 9 This is a schematic diagram of the bottom structure of a laryngeal mask with an inner tube and a drainage tube in one embodiment of the present invention.

[0016] In the diagram, 1-Cuff; 11-Thickened pad; 2-Inflation tube; 21-Valve; 22-Indicator balloon; 3-Ventilation conduit; 31-Straight tube section; 32-Bend tube section; 33-Connecting tube section; 331-Ventilation port; 4-Annular reinforcing rib; 5-Strip reinforcing rib; 6-Thickened bending layer; 7-Connecting plate; 71-Arc-shaped groove; 8-Inner tube; 9-Drainage tube. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present invention. Preferred embodiments of the present invention 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 invention, but they should not be construed as limiting the scope of protection of the present invention.

[0018] Example 1: Reference Figures 1 to 9 This utility model provides a laryngeal mask with a reinforced rib structure, including a cuff 1, an inflation tube 2, and an air duct 3. The air duct 3 is composed of a straight tube section 31, a curved tube section 32, and a connecting tube section 33 connected in sequence. One end of the connecting tube is provided with an air vent 331. The edge of the air vent 331 is surrounded by an annular reinforcing rib 4, which is connected to the inner ring of the cuff 1. A strip reinforcing rib 5 is provided on the outer wall of the inner curved side of the curved tube section 32, which is connected to the outer wall of the inner curved side of the connecting tube section 33.

[0019] The rigidity of the airway 331 is enhanced by the thick annular reinforcing rib 4 surrounding the edge, making it less prone to bending and folding, thus reducing the possibility of the airway 331 shrinking or becoming blocked. Furthermore, the rigidity of the bent section 32 and the connecting pipe end on the airway duct 3 is improved by setting a strip reinforcing rib 5, which connects the bent section 32 and the connecting pipe end. This reduces the possibility of the cuff 1 not fitting properly against the larynx due to the easy bending of the pipeline structure, thereby improving the overall ventilation effect of the laryngeal mask.

[0020] Specifically, the strip reinforcing rib 5 has an arc-shaped structure.

[0021] Example 2: Reference Figures 1 to 9 In conjunction with the technical solution of Embodiment 1, in this embodiment, a thickened anti-bending layer 6 is provided on the inner wall of the pipe on the outer bend side of the connecting pipe section 33.

[0022] Based on the structure of the strip reinforcing rib 5, the rigidity of the connecting pipe section 33 is further improved by setting a thickened anti-bending layer 6 on the inner wall of the pipe on the outward bending side of the connecting pipe section 33. This reduces the occurrence of the cuff 1 not fitting the larynx due to the easy bending of the connecting pipe section 33, and improves the ventilation effect of the entire laryngeal mask.

[0023] Example 3: Reference Figures 1 to 9 In this embodiment, in combination with the technical solutions of Embodiment 1 and Embodiment 2, the outer wall of the front section of the inflation pipe 2 is connected to the strip reinforcing rib 5.

[0024] By connecting the outer wall of the front section of the inflation tube 2 to the strip reinforcing rib 5, the inflation tube 2 is effectively stabilized, making it less likely to detach from the sleeve 1 due to pulling.

[0025] Specifically, the inflation tube 2 is equipped with a valve 21 and an indicator balloon 22. The valve 21 can be a one-way valve.

[0026] During inflation, the inflation tube 2 is inflated using a syringe or other inflation device. The inflation status of the cuff 1 can be determined at any time by observing the inflation status of the indicator balloon 22. After inflation stops, the valve 21 is closed. The structure of the laryngeal mask airway inflation tube 2, combined with the valve 21 and the indicator balloon 22, is a known technical means and will not be described in detail in this application.

[0027] Specifically, a connecting plate 7 is provided on the straight pipe section 31, and an arc-shaped slot 7 is provided on the connecting plate 7 for the air inlet pipe 2 to be inserted.

[0028] The inflation tube 2 can be inserted into the arc-shaped slot 7 to achieve the positioning and cable management effect of the inflation tube 2.

[0029] Specifically, the front end of the sheath 1 is provided with a U-shaped thickened pad 11.

[0030] By setting a U-shaped thickening pad 11, the rigidity of the front end of the laryngeal mask 1 can be effectively improved, reducing the occurrence of the laryngeal mask 1 not fitting the larynx due to the easy bending of the front end of the laryngeal mask 1, which is conducive to improving the ventilation effect of the laryngeal mask.

[0031] Example 4: Reference Figures 5 to 9 In conjunction with the technical solutions of embodiments 1-3, in this embodiment, the front end of the sheath 1 is provided with an inner tube 8, and a drainage tube 9 is connected to the inner tube 8.

[0032] Specifically, the outer wall of the drainage tube 9 is connected to the outer wall of the ventilation tube 3.

[0033] The inner tube 8 and drainage tube 9, together with the ventilation tube 3, form a "double-tube laryngeal mask" structure. The ventilation tube 3 is mainly used for positive pressure ventilation, while the drainage tube 9 is mainly used for negative pressure removal of foreign objects. The "double-tube laryngeal mask" structure is a known technical means and will not be described in detail in this application.

[0034] By setting annular reinforcing ribs 4 and strip reinforcing ribs 5 on the "double-tube laryngeal mask", the air vent 331 is not easy to bend or fold, reducing the possibility of the air vent 331 shrinking or becoming blocked. It can also reduce the possibility of the cuff 1 not fitting the larynx due to the easy bending of the pipeline structure, thus improving the ventilation effect of the entire "double-tube laryngeal mask".

[0035] That is, the annular reinforcing rib 4 and the strip reinforcing rib 5 of this application can be applied to ordinary laryngeal masks and double-tube laryngeal masks to improve their ventilation effect.

[0036] The laryngeal mask in this application can be integrally injection molded using medical silicone rubber or PVC.

[0037] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.

Claims

1. A laryngeal mask with a reinforcing structure, characterized in that, It includes a cuff, an inflation tube, and a ventilation conduit. The ventilation conduit is composed of a straight tube section, a curved tube section, and a connecting tube section connected in sequence. One end of the connecting tube is provided with a ventilation port. The edge of the ventilation port is surrounded by an annular reinforcing rib, which is connected to the inner ring of the cuff. The outer wall of the inner curved side of the curved tube section is provided with a strip reinforcing rib, which is connected to the outer wall of the inner curved side of the connecting tube section.

2. A laryngeal mask with a reinforcing rib structure according to claim 1, characterized in that: The strip-shaped reinforcing rib has an arc-shaped structure.

3. A laryngeal mask with a reinforcing rib structure according to claim 1, characterized in that: The inner wall of the pipe on the outer bend side of the connecting pipe section is provided with a thickened bending-resistant layer.

4. A laryngeal mask with a reinforcing rib structure according to claim 1, characterized in that: The outer wall of the front section of the inflation pipe is connected to the strip reinforcing rib.

5. A laryngeal mask with a reinforcing rib structure according to claim 1, characterized in that: The inflation tube is equipped with a valve and an indicator balloon.

6. A laryngeal mask with a reinforcing rib structure according to claim 1, characterized in that: A connecting plate is provided on the straight pipe section, and an arc-shaped slot is provided on the connecting plate for the inflation pipe to be inserted.

7. A laryngeal mask with a reinforcing rib structure according to claim 1, characterized in that: The front end of the sheath is provided with a U-shaped thickened pad.

8. A laryngeal mask with a reinforcing rib structure according to any one of claims 1-7, characterized in that: The front end of the sac is provided with an inner tube, and a drainage tube is connected to the inner tube.

9. A laryngeal mask with a reinforcing rib structure according to claim 8, characterized in that: The outer wall of the drainage tube is connected to the outer wall of the ventilation duct.

Images