The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 1994
Filed:
Jun. 07, 1990
Mark K Ferguson, Hinsdale, IL (US);
David Schucart, Highland Park, IL (US);
Lev Melinyshyn, Mt. Prospect, IL (US);
Arch Development Corporation, Chicago, IL (US);
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.