Visualized laryngeal mask

By integrating a camera and display into the laryngeal mask, visual insertion of the laryngeal mask is achieved, solving the problem of inconvenient insertion and improving the accuracy and safety of the operation.

CN224404125UActive Publication Date: 2026-06-26ESOUND MEDICAL DEVICE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ESOUND MEDICAL DEVICE CO LTD
Filing Date
2025-02-28
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

During the current laryngeal mask airway insertion process, medical staff have difficulty inserting it accurately, which leads to multiple adjustments, increasing operation time and risk of injury, and also results in a high probability of intubation failure.

Method used

A visual laryngeal mask was designed, equipped with a camera and a display. The camera shows the condition of the larynx in real time, and the mask is supplemented by a sealing airbag and a drainage tube to achieve precise insertion and sealing.

Benefits of technology

It improves the accuracy and safety of laryngeal mask airway insertion, reduces operation time and risk of injury, and lowers the probability of intubation failure.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224404125U_ABST
    Figure CN224404125U_ABST
Patent Text Reader

Abstract

A kind of visual laryngeal mask, including laryngeal mask body, laryngeal mask body includes splicing pipe, the lower end of splicing pipe is equipped with inflatable sealing air bag, splicing pipe is equipped with inflation pipe and air guide pipe, the lower end of air guide pipe extends into sealing air bag, the lower end of inflation pipe is connected with sealing air bag, and the upper end of inflation pipe extends out splicing pipe, splicing pipe is equipped with cable, the lower end of cable extends into sealing air bag, and the end of cable is equipped with camera, the upper end of cable extends out splicing pipe, and the upper end of cable is detachably connected with display for displaying the image collected by camera;Splicing pipe is also equipped with drainage tube for guiding flow, the lower end opening of drainage tube extends to the lower end of sealing air bag, and the upper end of drainage tube extends out splicing pipe upwards.The utility model discloses simple structure, convenient to use.
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Description

Technical Field

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

[0002] A laryngeal mask airway (LMA) consists of a ventilation tube and a distal circular inflatable mask. It is inserted into the pharynx, and an appropriate amount of air is injected into the mask to seal the larynx, allowing for ventilation. The LMA helps maintain airway patency, requires no special positioning, and is simple and quick to operate, saving time and potentially saving lives. As a medical device used for surgical anesthesia, critical care, or other assisted breathing procedures to establish artificial airways, it is widely used in clinical anesthesia, difficult airway management, and emergency treatment. However, in current techniques, medical staff often use a blind insertion method to establish a breathing channel by inserting the LMA through the pharynx. If the insertion is not successful the first time, the angle must be readjusted, inevitably leading to repeated operations. This increases the time and difficulty of the procedure, as well as the risk of oropharyngeal injury, bleeding, and intubation failure. Therefore, in current techniques, because the internal condition of the patient's larynx cannot be observed, blind insertion of the LMA not only requires multiple adjustments to the angle of the mask but also causes injury and bleeding to the patient's larynx, potentially leading to intubation failure. Utility Model Content

[0003] To address the technical problem of inconvenient insertion and removal of laryngeal masks, this invention provides a visual laryngeal mask, comprising a mask body and an insertion tube. The lower end of the insertion tube is equipped with an inflatable sealing bladder. An inflation tube and an air guide tube are located within the insertion tube. The lower end of the air guide tube extends into the sealing bladder. The lower end of the inflation tube is connected to the sealing bladder, and the upper end of the inflation tube extends out of the insertion tube. When the sealing bladder is inserted into the patient's larynx, it is inflated through the inflation tube, causing the bladder to expand and seal the patient's larynx. The upper end of the inflation tube is equipped with a one-way valve and an inflation connector, and a pressure indicator bladder is also provided on the inflation tube. The intubation tube contains a cable, the lower end of which extends into the sealing airbag, and a camera is attached to the end of the cable. The upper end of the cable extends out of the intubation tube and is detachably connected to a display for showing the images captured by the camera. In use, the camera is inserted into the patient's throat along with the intubation tube. The camera transmits the captured images of the patient's throat via the cable to the display, allowing medical staff to observe the patient's throat condition and facilitate the insertion of the sealing airbag and intubation tube. The intubation tube also contains a drainage tube for drainage. The lower opening of the drainage tube extends to the lower end of the sealing airbag, and the upper end of the drainage tube extends upwards out of the intubation tube. The drainage tube facilitates the drainage of fluid from the patient's stomach.

[0004] Preferably, the top end of the air duct is provided with an air duct connector.

[0005] Preferably, the top end of the drainage tube is provided with a drainage tube connector.

[0006] Preferably, the insertion tube is made of medical-grade PVC material.

[0007] The above scheme has the following advantages:

[0008] The camera and monitor setup allows the camera to capture images of the patient's throat, which are then transmitted via cable to the monitor for display. This enables medical staff to observe the patient's throat condition, facilitating the insertion of the sealing cuff and intubation tube. The sealing cuff and inflation tube inflate the sealing cuff via the inflation tube, allowing medical staff to seal the patient's throat after intubation. A one-way valve prevents gas from leaking out of the inflation tube, and a pressure indicator cuff allows medical staff to observe and assess the pressure within the sealing cuff. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Reference numerals in the attached diagram: 1. Laryngeal mask body; 2. Inflation tube; 3. Air duct; 4. Drainage tube; 5. Cable; 11. Connecting tube; 12. Sealing airbag; 21. Inflation connector; 22. One-way valve; 23. Pressure indicator airbag; 31. Air duct connector; 41. Drainage tube connector; 51. Camera; 52. Display. Detailed Implementation

[0011] like Figure 1As shown, a visualized laryngeal mask includes a laryngeal mask body 1, which includes an insertion tube 11. The lower end of the insertion tube 11 is provided with an inflatable sealing airbag 12. An inflation tube 2 and an air guide tube 3 are provided inside the insertion tube 11. The lower end of the air guide tube 3 extends into the sealing airbag 12. The lower end of the inflation tube 2 is connected to the sealing airbag 12, and the upper end of the inflation tube 2 extends out of the insertion tube 11. When the sealing airbag 12 is inserted into the patient's larynx, the sealing airbag 12 is inflated through the inflation tube 2. The sealing airbag 12 inflates and seals the patient's larynx. The upper end of the inflation tube 2 is provided with a one-way valve 22 and an inflation connector 21. The inflation tube 2 is also provided with a pressure indicator airbag 23. The intubation tube 11 contains a cable 5, the lower end of which extends into the sealing airbag 12. A camera 51 for acquiring image signals is located at the end of the cable 5. The upper end of the cable 5 extends out of the intubation tube 11, and a display 52 for displaying the images acquired by the camera 51 is detachably connected to the upper end of the cable 5. In use, the camera 51 is inserted into the patient's throat along with the intubation tube 11. The camera 51 transmits the acquired image information of the patient's throat to the display 52 via the cable 5. Medical personnel can observe the patient's throat condition through the display 52, facilitating the insertion of the sealing airbag 12 and the intubation tube 11 into the patient's throat. The intubation tube 11 also contains a drainage tube 4 for drainage. The lower opening of the drainage tube 4 extends to the lower end of the sealing airbag 12, and the upper end of the drainage tube 4 extends upward out of the intubation tube 11. The drainage tube 4 facilitates the drainage of fluid from the patient's stomach.

[0012] Preferably, the top end of the air duct 3 is provided with an air duct connector 31.

[0013] Preferably, the top end of the drainage tube 4 is provided with a drainage tube connector 41.

[0014] Preferably, the insertion tube 11 is made of medical-grade PVC material.

[0015] Usage process:

[0016] In use, medical staff insert one end of the intubation tube 11 with the sealing airbag 12 into the patient's throat. The camera 51 transmits the image information of the patient's throat to the display 52 via the cable 5 and displays it on the display 52. ​​By observing the image on the display 52, the medical staff adjusts the angle and position of the intubation tube 11 and the sealing airbag 12 in the patient's throat until the sealing airbag 12 and the intubation tube 11 are properly inserted. Then, the air pump is connected to the inflation connector 21, and the universal air pump inflates the sealing airbag 12. After inflation, the sealing airbag 12 expands and blocks the patient's throat, and the air in the patient's lungs is connected to the oxygen cylinder through the air delivery tube.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A visual laryngeal mask, comprising a laryngeal mask body, the laryngeal mask body including an insertion tube, an inflatable sealing bladder at the lower end of the insertion tube, an inflation tube and an air guide tube disposed within the insertion tube, the lower end of the air guide tube extending into the sealing bladder, the lower end of the inflation tube being connected to the sealing bladder, and the upper end of the inflation tube extending out of the insertion tube, characterized in that: The connector contains a cable with its lower end extending into the sealed airbag and a camera at the end of the cable. The upper end of the cable extends out of the connector and is detachably connected to a display for showing the image captured by the camera. The connector also contains a drainage tube that serves as a guide. The lower end of the drainage tube extends to the lower end of the sealed airbag, and the upper end of the drainage tube extends upward out of the connector.

2. The visual laryngeal mask according to claim 1, characterized in that: The upper end of the inflation tube is equipped with a one-way valve and an inflation connector.

3. A visual laryngeal mask according to claim 2, characterized in that: The inflation tube is also equipped with a pressure indicator airbag.

4. A visual laryngeal mask according to claim 1, characterized in that: An air delivery tube connector is provided at the top of the air delivery tube.

5. A visual laryngeal mask according to claim 1, characterized in that: The top of the drainage tube is equipped with a drainage tube connector.

6. A visual laryngeal mask according to claim 1, characterized in that: The insertion tube is made of medical-grade PVC material.