The Leech airway: precursor to the modern supraglottic airway

Avery, Emma

doi:10.1007/s12630-017-1038-2

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…Interestingly, Dr. Brain built the LMA using a number of concepts, including the Leech airway, 6 referenced in his LMA patent application. Without the Leech airway also being commercially available, Sir Archie Brain perhaps would not have had access to it as a precursor to assist in the development of the LMA.…”

Section: The Value Of Macgyveringmentioning

confidence: 99%

The MacGyver bias and attraction of homemade devices in healthcare

Duggan

Marshall

Scott

et al. 2019

Can J Anesth/J Can Anesth

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Section: The Value Of Macgyveringmentioning

confidence: 99%

The MacGyver bias and attraction of homemade devices in healthcare

Duggan

Marshall

Scott

et al. 2019

Can J Anesth/J Can Anesth

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“…Roughly two decades after Brain's revolutionary introduction of the 'vintage' LMA-Classic [4], and more than six decades after the filing patent of its precursor (i.e. Leech's Pharyngeal Bulb Gasway) [5], Brain successfully launched the first prototype 2nd generation SADs, the 'LMA-Pro-Seal' [6], incorporating an airway tube with improved glottic seal and gastric drain tube channel for gastric decompression. Since then, SADs have become popular and highly effective devices in airway management [7].…”

Section: Introductionmentioning

confidence: 99%

The case for a 3rd generation supraglottic airway device facilitating direct vision placement

Zundert

Kumar

Zundert

et al. 2020

J Clin Monit Comput

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Although 1st and 2nd generation supraglottic airway devices (SADs) have many desirable features, they are nevertheless inserted in a similar 'blind' way as their 1st generation predecessors. Clinicians mostly still rely entirely on subjective indirect assessments to estimate correct placement which supposedly ensures a tight seal. Malpositioning and potential airway compromise occurs in more than half of placements. Vision-guided insertion can improve placement. In this article we propose the development of a 3rd generation supraglottic airway device, equipped with cameras and fiberoptic illumination, to visualise insertion of the device, enable immediate manoeuvres to optimise SAD position, verify whether correct 1st and 2nd seals are achieved and check whether size selected is appropriate. We do not provide technical details of such a '3rd generation' device, but rather present a theoretical analysis of its desirable properties, which are essential to overcome the remaining limitations of current 1st and 2nd generation devices. We also recommend that this further milestone improvement, i.e. ability to place the SAD accurately under direct vision, be eligible for the moniker '3rd generation'. Blind insertion of SADs should become the exception and we anticipate, as in other domains such as central venous cannulation and nerve block insertions, vision-guided placement becoming the gold standard.

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History and Milestones of Airway Management

Ubaradka¹,

Gupta

2023

The Airway Manual

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The Leech airway: precursor to the modern supraglottic airway

Cited by 4 publications

References 3 publications

The MacGyver bias and attraction of homemade devices in healthcare

The MacGyver bias and attraction of homemade devices in healthcare

The case for a 3rd generation supraglottic airway device facilitating direct vision placement

History and Milestones of Airway Management

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