A new laryngeal mask supraglottic airway device with integrated balloon line: a descriptive and comparative bench study

Laryngeal masks are invasive devices for airway management placed in the supraglottic position. The Shiley™ laryngeal mask (Shiley™ LM) features an integrated inflation tube and airway shaft to facilitate product insertion and reduce the chance of tube occlusion when patients bite down. This study c...

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Bibliographic Details
Published in:Medical devices (Auckland, N.Z.) N.Z.), 2016-01, Vol.9, p.383-388
Main Authors: Zhou, YingHai, Jew, Korinne
Format: Article
Language:English
Subjects:
Airway management
Comparative analysis
Design
Flexibility
Intensive care
laryngeal mask
Medical research
Medicine, Experimental
Original Research
Patients
Performance evaluation
supraglottic airway
supralaryngeal device
Tensile strength
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Description
Summary:Laryngeal masks are invasive devices for airway management placed in the supraglottic position. The Shiley™ laryngeal mask (Shiley™ LM) features an integrated inflation tube and airway shaft to facilitate product insertion and reduce the chance of tube occlusion when patients bite down. This study compared the Shiley LM to two other disposable laryngeal mask devices, the Ambu AuraStraight™ and the LMA Unique™. Overall device design, tensile strength, flexibility of various structures, and sealing performance were measured. The Shiley LM is structurally stronger and its shaft is more resistant to compression than the other devices. The Shiley LM is generally less flexible than the other devices, but this relationship varies with device size. Sealing performance of the devices was similar in a bench assay. The results of this bench study demonstrate that the new Shiley LM resembles other commercially available laryngeal mask devices, though it exhibits greater tensile strength and lower flexibility.
ISSN:1179-1470
1179-1470
DOI:10.2147/MDER.S112185