Laryngeal mask

Types of Laryngeal Masks

The laryngeal mask airway comes in several models:

Classic laryngeal mask
This mask is made of a clear silicone tube with an oval cuff. The cuff in the classic laryngeal mask has two parts. The lateral or lower cuff sits around the piriform fossa or larynx and is secured. The upper cuff lifts the base of the tongue and prevents any material from entering the larynx. One feature of the classic mask is that it is reusable. According to estimates, it has been used more than 200 million times since it was introduced.

ProSeal laryngeal mask
The ProSeal laryngeal mask was introduced in 2000 and is an improved version of the classic mask. Besides using a silicone rim to seal around the larynx, its distal tip has an esophageal drainage port designed to connect with the digestive tract. The port in this mask allows suctioning, which potentially reduces the risk of aspiration.

Placing the ProSeal laryngeal mask takes longer than the classic mask, but it creates a stronger seal. Alongside its advantages, it also has problems such as malposition and airway obstruction. If the mask is not placed correctly or leaks, air can be seen coming out of the esophageal port.

Fastrach laryngeal mask
The Fastrach mask, another improved version of the classic mask, is designed for placing an endotracheal tube. In this mask, the upper part of the tube has been removed. The remaining tube has a metal core with a handle used to position the tube. Once an airway is established with this mask, the trachea can be accessed through the metal channel.

The most important feature of the Fastrach mask is its ease of use. In a study using manikins, experienced and inexperienced operators were able to place the mask successfully on their first attempt after watching a 60-second demonstration.

C-Trach laryngeal mask
This mask is a modified version of the Fastrach mask that includes a viewer to display the glottis. The C-Trach laryngeal mask is mainly used for obese people whose airway is difficult to access.

Disposable laryngeal mask
Disposable laryngeal masks come in three types: LMA-Unique, Portex Soft-Seal and the Ambu laryngeal mask (known today as AuraOnce).

The Unique mask is very similar to classic disposable masks. Portex masks have no silicone rim. The Ambu laryngeal mask has a rigid curve in the main tube designed to better fit the oropharynx. According to studies, disposable masks are easy to use and take less time to place.

PVC masks
Masks made of PVC consist of an inflatable cuff with a flexible tube, used to protect the airways of patients breathing spontaneously or on positive-pressure ventilation. The mask is also used for patients under anesthesia, in intensive care and in medical emergencies. PVC masks are latex-free and do not cause allergies. They are also sterile and supplied as single-use.

Laryngeal Mask Sizes
Laryngeal masks come in different sizes, which vary with the patient’s age and weight. Mask sizes range from 1 to 5. The table below is a good guide to choosing an airway mask size based on your weight and age.

Size: 1 – 1.5 – 2 – 2.5

Patient weight (kg): less than 5 – 5 to 10 – 10 to 20 – 20 to 30

Age group (years): 6 months and under – under one year – 1 to 5 – 5 to 10

Mask length (cm): 10 – 10 – 11.5 – 12.5

Cuff volume (ml): 4 – 5 to 7 – 7 to 10 – 14

3

30 to 60

10 to 15

19

15 to 20

—–

4

60 to 80

Over 15

19

25 to 30

—-

5

Over 80

Over 15

19

30 to 40

Laryngeal Mask Price and Purchase
Bonyan Tajar, as the main supplier of laryngeal mask airways, is ready to work with medical centers and other organizations to supply masks to them directly, without intermediaries. Before buying this product, note that laryngeal mask prices can vary with factors such as the brand, type of mask and size. To request a price quote, simply contact our experts.