Laryngeal mask with gastric-drainage feature

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5632271
SERIAL NO

08622734

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A laryngeal-mark airway device has additional provision for extraction of gastric discharges while the mask seals the airway to the laryngeal inlet. A single elongate flexible small-bore drainage tube is so bonded to the posterior curvature of an elongate flexible airway as to enhance torsional stiffness in the combined airway tube and drainage tube. The airway tube has a customary fit to the air inlet of the domed backing plate of the mask, and a generally elliptical inflatable ring around the backing plate and lumen of the mask is configured to establish a continuous peripherally sealed engagement to the laryngeal inlet. The elongate flexible drainage tube has sealed entry into the distal end of the inflatable ring, distally traversing the same with sealed distal exit from the distal end of the inflatable ring. The distal end of the inflatable ring is so configured that, despite drainage-tube passage within and through the distal end of the inflatable ring, the inflatable capacity of the distal end of the inflatable ring remains substantially the same as for the full peripheral course of the inflatable ring.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
THE LARYNGEAL MASK COMPANY LIMITEDVICTORIA MAHE11

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brain, Archibald I J Sandford House, Fan Court Gardens, Longcross Road, Chertsey, Surrey, GB 48 1992

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