Laryngeal mask anti-bending pressure structure of ultrathin high-elasticity medical silica gel composite material
Patent Information
- Application Number
- CN202520884092.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-05-07
AI Technical Summary
[0005]针对现有技术不足,本实用新型提供了一种超薄高弹性医用硅胶复合材料的喉罩抗折压结构,解决了:现有的喉罩多采用柔性材料(如医用硅胶或PVC)制成,导管及罩体部分在受到外部压力(如患者体位改变、颈部屈曲、外部器械挤压)时易发生形变甚至塌陷,导致气道阻塞或密封失效的问题
[0014] This invention provides a laryngeal mask structure made of ultra-thin, highly elastic medical silicone composite material to resist bending and compression. It has the following beneficial effects:
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Figure CN224655772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a laryngeal mask anti-bending and pressure-resistant structure made of ultra-thin, highly elastic medical silicone composite material. Background Technology
[0002] The laryngeal mask airway (LMA) is an important tool for supraglottic airway management and is widely used in general anesthesia, emergency resuscitation, and other fields. It creates a closed channel by being inserted into the pharynx and larynx to ensure the patient's ventilation function, and has advantages such as ease of operation and minimal invasiveness.
[0003] Existing laryngeal masks are mostly made of flexible materials (such as medical silicone or PVC). When subjected to external pressure (such as changes in patient position, neck flexion, or external instrument compression), the tube and mask are prone to deformation or even collapse, leading to airway obstruction or seal failure. To address this, a laryngeal mask anti-bending and pressure-resistant structure made of ultra-thin, highly elastic medical silicone composite material is proposed. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides an anti-bending and pressure-resistant laryngeal mask structure made of ultra-thin, highly elastic medical silicone composite material. This solves the problem that existing laryngeal masks are mostly made of flexible materials (such as medical silicone or PVC), and the catheter and mask body are prone to deformation or even collapse when subjected to external pressure (such as changes in patient position, neck flexion, or external instrument compression), leading to airway obstruction or seal failure.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a laryngeal mask anti-bending and pressure-resistant structure of ultra-thin, high-elasticity medical silicone composite material, including a laryngeal mask ventilation tube, the laryngeal mask ventilation tube having an L-shaped structure and a laryngeal mask air bag connected to its end, an endotracheal tube connected to the upper end of the laryngeal mask ventilation tube, a through hole provided inside the laryngeal mask ventilation tube and a support spring installed on the inner wall of the through hole, and several mounting holes also provided inside the laryngeal mask ventilation tube, each of which is fitted with an anti-bending tube, and a suction plate fixedly installed on the surface of the laryngeal mask ventilation tube.
[0008] As a further preferred embodiment of this utility model, a plurality of anti-bending tubes are provided and are distributed in a ring at equal intervals with the through hole as the center. The anti-bending tube is composed of a plurality of air bladder columns and connecting tubes connected alternately.
[0009] As a further preferred embodiment of this utility model, the connecting tube is a rigid rubber tube, and the airbag columns and connecting columns of the adjacent anti-bending tubes are alternately distributed.
[0010] As a further preferred embodiment of this utility model, an air guide ring is installed at the top of the laryngeal mask airway tube, the air guide ring is connected to the anti-bending tube, and an inflation tube is connected to the top of the air guide ring.
[0011] As a further preferred embodiment of the present invention, the top surface of the liquid extraction plate is recessed downward to form a water collection trough, and an annular water collection hole is provided on the surface of the water collection trough. The water collection hole communicates with the interior of the liquid extraction plate, and a liquid extraction pipe is also connected to the top surface of the liquid extraction plate. The end of the liquid extraction pipe extends to the inner bottom of the liquid extraction plate.
[0012] As a further preferred embodiment of this utility model, an inflation tube is installed on the laryngeal mask airbag.
[0013] (III) Beneficial Effects
[0014] This invention provides a laryngeal mask structure made of ultra-thin, highly elastic medical silicone composite material to resist bending and compression. It has the following beneficial effects:
[0015] This invention incorporates a support spring inside the laryngeal mask airway to enhance its support performance. The laryngeal mask airway also contains several anti-bend tubes, each composed of multiple connecting tubes and an airbag column. Inflation is performed through the inflation tubes to adjust the support strength of the laryngeal mask airway, preventing deformation or even collapse under external pressure, which could lead to airway obstruction or seal failure. Attached Figure Description
[0016] Figure 1 This is a structural diagram of the laryngeal mask anti-bending and compression structure of the ultra-thin, highly elastic medical silicone composite material described in this utility model;
[0017] Figure 2 This is a cross-sectional view of the laryngeal mask anti-bending and compression structure of the ultra-thin, highly elastic medical silicone composite material described in this utility model;
[0018] Figure 3 This is a structural diagram of the anti-bending tube described in this utility model.
[0019] In the diagram: 1. Laryngeal mask airway tube; 2. Aspiration tray; 3. Aspiration tube; 4. Endotracheal tube; 5. Inflation tube one; 6. Inflation tube two; 7. Laryngeal mask airbag; 8. Water collection tank; 9. Water collection hole; 10. Air guide ring; 11. Mounting hole; 12. Anti-bending tube; 13. Support spring; 14. Airbag column; 15. Connecting tube. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-3 This utility model provides a technical solution: a laryngeal mask anti-bending and pressure-resistant structure made of ultra-thin, high-elasticity medical silicone composite material, including a laryngeal mask ventilation tube 1. The laryngeal mask ventilation tube 1 is made of ultra-thin, high-elasticity medical silicone composite material. The laryngeal mask ventilation tube 1 has an L-shaped structure and is connected to a laryngeal mask airbag 7 at the end. The upper end of the laryngeal mask ventilation tube 1 is connected to an endotracheal tube 4. The interior of the laryngeal mask ventilation tube 1 is provided with a through hole and a support spring 13 is installed on the inner wall of the through hole. The support spring 13 improves the support performance of the laryngeal mask ventilation tube 1. The interior of the laryngeal mask ventilation tube 1 is also provided with several mounting holes 11. Each mounting hole 11 is installed with an anti-bending tube 12. A suction plate 2 is fixedly installed on the surface of the laryngeal mask ventilation tube 1. The suction plate 2 can extract saliva.
[0022] Further improvements include the following: several anti-bend tubes 12 are arranged in a ring at equal intervals around the through hole. Each anti-bend tube 12 is composed of several air bladder columns 14 and connecting tubes 15 connected alternately. The connecting tubes 15 are rigid rubber tubes, and the air bladder columns 14 and connecting columns of adjacent anti-bend tubes 12 are alternately distributed. An air guide ring 10 is installed at the top of the laryngeal mask airway 1, and the air guide ring 10 is connected to the anti-bend tube 12. An inflation tube 5 is connected to the top of the air guide ring 10, which inflates and deflates the air guide ring 10. During the inflation and deflation process, the air guide ring 10 delivers gas into the anti-bend tube 12. After the anti-bend tube 12 is inflated or deflated, the supporting strength of the laryngeal mask airway 1 can be adjusted to prevent bending.
[0023] In a further improvement, the top surface of the suction plate 2 is recessed downward to form a water collection trough 8. The surface of the water collection trough 8 is provided with an annular water collection hole 9, which is connected to the interior of the suction plate 2. The top surface of the suction plate 2 is also connected to a suction tube 3, the end of which extends to the bottom of the suction plate 2. The saliva secreted by the patient can be extracted through the suction plate 2, which can prevent the saliva from accumulating in the laryngeal mask tube or the mask body and forming a liquid accumulation.
[0024] Further improvements include the installation of an inflation tube 6 on the laryngeal mask airbag 7, which inflates the laryngeal mask airbag 7.
[0025] Working principle: First, the air in the laryngeal mask airway 7 is expelled. The end of the laryngeal mask airway 7 is then placed against the hard palate of the oral cavity. The laryngeal mask airway is then inserted along the hard and soft palates, fitting snugly against the patient's laryngopharynx. Inflation is then performed on the laryngeal mask airway 7. The air enters the interior of the laryngeal mask airway 7 through the inflation tube 2 6, causing the 7 to inflate. The laryngeal mask airway 7 seals the epiglottis and glottis, forming a low-pressure sealed cavity around the larynx. Air is then inflated and deflated through the inflation tube 1 5 to the air guide ring 10, which guides the air into the anti-bending tube 12, adjusting the support strength of the laryngeal mask airway tube 1.
[0026] This utility model comprises: 1. a laryngeal mask ventilation tube; 2. a suction tray; 3. a suction tube; 4. an endotracheal tube; 5. an inflation tube (first); 6. an inflation tube (second); 7. a laryngeal mask airbag; 8. a water collection tank; 9. a water collection hole; 10. an air guide ring; 11. a mounting hole; 12. an anti-bending tube; 13. a support spring; 14. an airbag column; and 15. a connecting tube. All components are standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this utility model is that existing laryngeal masks are mostly made of flexible materials (such as medical silicone or PVC), and the tubing and mask body are susceptible to damage from external forces. Laryngeal mask airways (LMAs) are prone to deformation or even collapse under pressure (such as changes in patient position, neck flexion, or external instrument compression), leading to airway obstruction or seal failure. This invention addresses this by incorporating a support spring 13 inside the LMA tube 1 to enhance its support performance. The LMA tube 1 also contains several anti-bend tubes 12, each composed of multiple connecting tubes 15 and a cuff column 14. Inflating the anti-bend tubes 12 via the inflation tube 5 adjusts the support strength of the LMA tube 1, preventing deformation or collapse under external pressure and thus avoiding airway obstruction or seal failure. The above description illustrates the basic principles, main features, and advantages of this invention. It is apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A laryngeal mask anti-bending and compression structure of ultra-thin, highly elastic medical silicone composite material, comprising a laryngeal mask ventilation tube (1), characterized in that: The laryngeal mask airway (1) has an L-shaped structure and is connected to the laryngeal mask airbag (7) at the end. The upper end of the laryngeal mask airway (1) is connected to the endotracheal tube (4). The laryngeal mask airway (1) has a through hole inside and a support spring (13) is installed on the inner wall of the through hole. The laryngeal mask airway (1) also has several mounting holes (11) inside. Each mounting hole (11) is equipped with an anti-bending tube (12). A suction plate (2) is fixedly installed on the surface of the laryngeal mask airway (1).
2. The laryngeal mask anti-bending and compression structure of ultra-thin, highly elastic medical silicone composite material according to claim 1, characterized in that: The anti-bending tubes (12) are arranged in a ring with equal spacing around the through hole. The anti-bending tubes (12) are composed of several airbag columns (14) and connecting tubes (15) connected alternately.
3. The laryngeal mask anti-bending and compression structure of ultra-thin, highly elastic medical silicone composite material according to claim 2, characterized in that: The connecting tube (15) is a rigid rubber tube, and the airbag column (14) and connecting column of the adjacent anti-bending tube (12) are alternately distributed.
4. The laryngeal mask anti-bending and compression structure of ultra-thin, highly elastic medical silicone composite material according to claim 2, characterized in that: The top of the laryngeal mask airway (1) is equipped with an air guide ring (10), which is connected to the anti-bending tube (12) and the top of the air guide ring (10) is connected to an inflation tube (5).
5. The laryngeal mask anti-bending and compression structure of an ultra-thin, highly elastic medical silicone composite material according to claim 1, characterized in that: The top surface of the liquid extraction plate (2) is recessed downward to form a water collection trough (8). The surface of the water collection trough (8) is provided with an annular water collection hole (9). The water collection hole (9) is connected to the interior of the liquid extraction plate (2). The top surface of the liquid extraction plate (2) is also connected to a liquid extraction pipe (3). The end of the liquid extraction pipe (3) extends to the inner bottom of the liquid extraction plate (2).
6. The laryngeal mask anti-bending and compression structure of an ultra-thin, highly elastic medical silicone composite material according to claim 1, characterized in that: An inflation tube (6) is installed on the laryngeal mask airbag (7).