KTP laser-resistant properties of the reinforced laryngeal mask airway.

We have assessed, in vitro, the effect of KTP laser strike on the reinforced laryngeal mask airway (RLMA) under a variety of conditions. At power densities normally encountered in clinical practice, using a divergent KTP laser beam, the RLMA could not be penetrated and did not ignite with laser stri...

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Autors principals: Pandit, J, Chambers, P, O'Malley, S
Format: Journal article
Idioma:English
Publicat: 1997
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author Pandit, J
Chambers, P
O'Malley, S
author_facet Pandit, J
Chambers, P
O'Malley, S
author_sort Pandit, J
collection OXFORD
description We have assessed, in vitro, the effect of KTP laser strike on the reinforced laryngeal mask airway (RLMA) under a variety of conditions. At power densities normally encountered in clinical practice, using a divergent KTP laser beam, the RLMA could not be penetrated and did not ignite with laser strike. The RLMA was penetrated at a high power density of 6.94 W mm-2 after 45-60 s. A flame appeared over the RLMA shaft at this power density after 12-35 s. The black marker line on the RLMA shaft was somewhat more vulnerable to the effects of laser strike. The flow of oxygen and nitrous oxide within the shaft did not appreciably alter the laser-resistant properties of the RLMA. The RLMA cuff was more vulnerable to laser strike than was the shaft and was penetrated at very low power densities. Filling the cuff with saline had a protective effect and penetration did not occur at power densities which caused penetration of air-filled cuffs (0.37 W mm-2).
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spelling oxford-uuid:bf26cfb1-055f-4c87-8e1c-b2830ef00ab42022-03-27T05:45:17ZKTP laser-resistant properties of the reinforced laryngeal mask airway.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:bf26cfb1-055f-4c87-8e1c-b2830ef00ab4EnglishSymplectic Elements at Oxford1997Pandit, JChambers, PO'Malley, SWe have assessed, in vitro, the effect of KTP laser strike on the reinforced laryngeal mask airway (RLMA) under a variety of conditions. At power densities normally encountered in clinical practice, using a divergent KTP laser beam, the RLMA could not be penetrated and did not ignite with laser strike. The RLMA was penetrated at a high power density of 6.94 W mm-2 after 45-60 s. A flame appeared over the RLMA shaft at this power density after 12-35 s. The black marker line on the RLMA shaft was somewhat more vulnerable to the effects of laser strike. The flow of oxygen and nitrous oxide within the shaft did not appreciably alter the laser-resistant properties of the RLMA. The RLMA cuff was more vulnerable to laser strike than was the shaft and was penetrated at very low power densities. Filling the cuff with saline had a protective effect and penetration did not occur at power densities which caused penetration of air-filled cuffs (0.37 W mm-2).
spellingShingle Pandit, J
Chambers, P
O'Malley, S
KTP laser-resistant properties of the reinforced laryngeal mask airway.
title KTP laser-resistant properties of the reinforced laryngeal mask airway.
title_full KTP laser-resistant properties of the reinforced laryngeal mask airway.
title_fullStr KTP laser-resistant properties of the reinforced laryngeal mask airway.
title_full_unstemmed KTP laser-resistant properties of the reinforced laryngeal mask airway.
title_short KTP laser-resistant properties of the reinforced laryngeal mask airway.
title_sort ktp laser resistant properties of the reinforced laryngeal mask airway
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AT chambersp ktplaserresistantpropertiesofthereinforcedlaryngealmaskairway
AT omalleys ktplaserresistantpropertiesofthereinforcedlaryngealmaskairway