Laryngeal Mask Airway
The laryngeal mask airway, also known as the laryngeal mask, is an artificial airway device invented by Dr. Archie Brain, a British anesthesiologist, in 1981 based on the human laryngeal structure. It serves as a crucial tool in maintaining airway patency and ensuring respiratory safety during medical emergencies, resuscitation, and general anesthesia procedures.
Applications:
The Laryngeal Mask Airway is widely used in anesthesiology, emergency departments, and ICUs, primarily for establishing short-term artificial airways during patient resuscitation or when patients cannot breathe autonomously or require respiratory anesthesia. The Trifanz® Disposable Medical Laryngeal Mask, for instance, offers swift intubation without the need for a laryngoscope, facilitating prompt establishment of an artificial airway.
Product Composition:
The Laryngeal Mask Airway primarily comprises a cuff, connecting piece, airway tube, machine-end connector, inflation tube, valve, and pilot balloon.
Sizes and Specifications:
Available in various sizes ranging from 1.0# to 5.0#, catering to different patient needs.
Indications:
1.Surgeries with no risk of vomiting or regurgitation, particularly in cases of difficult intubation.
2.As an emergency and effective airway device when standard mask ventilation fails to maintain adequate ventilation in difficult intubation scenarios.
3.As a guide for tracheal intubation when direct laryngoscopy is challenging.
4.For laser ablation of small tumors in the vocal cords, trachea, or bronchi using fiberoptic bronchoscopy.
5.In patients with unstable cervical spines where minimizing head movement is crucial.
6.Preferred for ophthalmic surgeries due to reduced intraocular pressure fluctuations and postoperative coughing and vomiting.
7.During laparoscopic procedures to facilitate ventilation due to raised diaphragms caused by pneumoperitoneum.
8.In emergency resuscitation, where its ease of insertion and effectiveness can save crucial time.
Product Features:
Simple Operation: Can be inserted without a laryngoscope or muscle relaxants.
Rapid Intubation: Takes only 10 seconds to establish an artificial airway, easy to learn and operate.
Anatomical Fit: Conforms to the anatomical curves of the throat, ensuring a good fit.
Medical-Grade Silicone: Selected for excellent biocompatibility.
Smooth Insertion: Minimizes respiratory tract irritation during insertion.
Unique Designs:
Standard Type: Features an inflatable cuff for effective sealing.
Reinforced Type: Incorporates a spiral spring within the tube for enhanced flexibility and resistance to compression or kinking.
Dual-Lumen Type: Offers an independent esophageal drainage lumen for gastric tube insertion, double cuffs for improved sealing, reinforced tube body, and an anti-bite design for better airway patency.
Contraindications:
Patients with full stomachs, high intra-abdominal pressure, or a high risk of vomiting and aspiration.
Patients with a history of habitual vomiting or regurgitation.
Hernia surgeries.
Patients with infections or other pathological changes in the throat.
Surgeries requiring positive pressure ventilation.
Patients with respiratory tract bleeding.
Patients with chronic respiratory diseases requiring ventilation pressures exceeding 25 cmH2O.
Patients with small mouths, large tongues, or abnormally enlarged tonsils.
Single lumen laryngeal mask airway.pdf
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