Protective tube laser endoscopy

Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue

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604 96, 604101, 606 16, A61M 500

Patent

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053083172

ABSTRACT:
A protective tube for a laser endoscope that prevents the passage of laser smoke towards the oral cavity of a patient, removes debris from the endoscope and which is adapted to be inserted through the oral cavity and into an esophagus of a patient receiving medical treatment, the protective tube comprising a curved resilient member having a proximal end and a distal end, the proximal end including a mouthpiece and the distal end including a first sealing means and a second sealing means, the first sealing means forming a first seal between an outer surface of the tube and an inner surface of the esophagus and the second sealing means forming a second seal between an inner surface of the tube and an outer surface of the laser endoscope.

REFERENCES:
patent: 4418688 (1983-12-01), Loeb
patent: 4419095 (1983-12-01), Nebergall et al.
patent: 4445892 (1984-05-01), Hussein et al.
patent: 4475548 (1984-10-01), Muto

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