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:
Sep. 21, 1993
Filed:
May. 17, 1991
Alain H Shikani, Baltimore, MD (US);
Micromedics, Inc., Eagan, MN (US);
Abstract
An implantable ventilation tube for insertion in bodily tissues is disclosed. A suggested use for such a tube is as a middle meatal antrostomy ventilation tube for use following endoscopic surgery. It consists of a pair of flanges and a central tubular vent section extending therebetween, having the flanges positioned perpendicular to the lumen of the central tubular vent section. The tube is preferably made of elastomeric material and may include grooves etched in the distal surface of the distal flange to assist in insertion by permitting materials of a higher durometer rating than silastic.RTM. to be folded then grasped during insertion. It is suggested that the proximal flange be generally rectangular shaped, while the distal flange be generally triangular shaped, to ease insertion yet enhance anchoring capabilities. Once properly positioned through an opening prepared in a body cavity or duct, the ventilation tube permits the unhindered flow of fluids, such as air, through the lumen.