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:
Dec. 09, 1986
Filed:
Mar. 03, 1986
Edgar M Lieberman, Kansas City, MO (US);
Other;
Abstract
A tracheostomy device for insertion into the trachea for ventilation has inner and outer cannulae. A sealing cuff on the inner cannula forms a seal with a wall of the trachea. A housing connects to the inner and outer cannulae and communicates with an outside air source. The outer cannula is provided with a fenestration between the cuff and the patient's vocal cords. The inner cannula is slidable within the outer cannula, the two being connected by a spring and bellows arrangement. The inner cannula slides down to close the fenestration during inhalation and slides up to open the fenestration upon exhalation of the air from the patient's lungs.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile