Laser barrier

Surgery – Respiratory method or device – Respiratory gas supply means enters mouth or tracheotomy...

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2505191, 604 96, A61M 1600

Patent

active

046588124

ABSTRACT:
A laser shield consists essentially of a series of spherical glass bubbles densely packed within a range of 1.95.times.10.sup.3 bubbles per cubic centimeter to 1.25.times.10.sup.8 bubbles per cubic centimeter encapsulated in a matrix of silicone to provide a flexible and light-weight foam-like material to terminate CO.sub.2 laser radiation without producing a substantial carbon plume. The glass bubbles may be filled with a gas. In another embodiment, a laser shield consists essentially of water encapsulated in a matrix of silicone to provide a flexible and lightweight material to terminate CO.sub.2 laser radiation without producing a substantial carbon plume. In another embodiment, water bubbles and glass bubbles are both encapsulated within a matrix of silicone to provide a laser shield. A surgical drape, a surgical sponge and an endotracheal tube are formed of a flexible and lightweight material of a series of densely packed bubbles encapsulated in a matrix of silicone to terminate laser radiation.

REFERENCES:
patent: 3720836 (1973-03-01), Donges et al.
patent: 3933712 (1976-01-01), Vanaglash, Jr.
patent: 4000108 (1976-12-01), Yokokawa et al.
patent: 4079162 (1978-03-01), Metzger
patent: 4489722 (1984-12-01), Ferraro et al.

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