*7.3.11.1 Introduction*

*7.3.10.2 Device description*

• Built up mask heel

• Integrated bite block

• Blocker Channel

**Figure 21.** *Air-Q blocker.*

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• Airway tube

Parts of the Air-Q® Blocker™ ILA (**Figure 21**):

*Special Considerations in Human Airway Management*

• Inflatable cuff with elevation ramp

• Thethered Colour Coded connector

intubation without ETT dislodgement.

*7.3.10.3 Size selection, practical aspect, adjuncts*

The Air-Q® Blocker™ airway outlet is keyhole-shaped. The anatomical shape facilitates ease of insertion. The soft blocker channel accepts naso-gastric tube to suction stomach contents. Alternatively, a blocker tube may be inserted through the blocker channel and helps to suction the pharynx or suction and block the upper oesophagus. The tethered colour coded connector avoids misplacements. In a known difficult or unexpectedly difficult intubation, it may be used as a conduit for intubation. The elevation ramp directs ETT midline and upward toward the laryngeal inlet. The Air-Q Removal Stylet helps easily remove the Air-Q® Blocker™ after

Size selection is done on a weight basis (**Table 10**). It is available in three sizes. Device placement is easy and offers less resistance. The major advantage of the device design is

The LMA® Gastro™ Airway with Cuff Pilot™ Technology (Teleflex®, USA) is the first SGA designed to enable active management of the airway while facilitating direct endoscopic access via the integrated endoscope channel. It is a soft, disposable, anatomically shaped device made up of silicone.

### *7.3.11.2 Device description*

Parts of the LMA® Gastro™ Airway (**Figure 22**):


Being anatomically shaped, it conforms to the patients's airway creating a better seal. Cuff Pilot™ Technology prevents cuff over inflation and reduces airway morbidity. The gastric channel provides as a conduit for passage of gastroduodenoscope.

#### *7.3.11.3 Size selection, practical aspect*

Size selection is done on a weight basis (**Table 11**). It is available in three sizes. Moderate to deep sedation if often required for endoscopic procedures. This can lead to hypoxemia and warrants the need of rescue airway. LMA® Gastro™ can be successfully employed as a primary airway technique for such procedures [101].


**Table 10.** *Available air-Q blocker LMAs.*

**Abbreviations**

L Litre Min Minute mm millimetre

**Author details**

ESIC Hospital and PGIMSR, Basaidarapur, New Delhi, India

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium,

\*Address all correspondence to: drkritisingh@gmail.com

provided the original work is properly cited.

Kriti Singh

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SGA Supraglottic Airway LMA Laryngeal Mask Airway ETT Endotracheal Tube OT Operation Theatre FOB Fibreoptic Bronchoscopy CPR Cardiopulmonary Resuscitation

*Second Generation Supraglottic Airway (SGA) Devices DOI: http://dx.doi.org/10.5772/intechopen.93947*

ID Internal Diameter mmHg millimetres of mercury

cmH2O centimetre of water

Kg kilogramme ml millilitre

**Figure 22.** *Gastro LMA.*


**Table 11.** *Available gastro LMAs.*
