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:
Feb. 21, 1995
Filed:
Dec. 17, 1991
Roy F Knight, Norman, OK (US);
Other;
Abstract
The present invention relates to a tracheoesophageal voice prosthesis device and an insertion tool for the same. The device includes a generally cylindrical tapered housing having a bore therethrough and readily removable valve means operably connected to the housing. The housing has a larger diameter end and a smaller diameter end. The larger diameter end portion includes an inner threaded surface portion which terminates in an inner grooved surface. The valve means includes a check valve and bearings operably disposed adjacent the inner grooved surface and a retainer having a surface portion threaded in a complimentary manner to the inner threaded surface of the housing for retaining the check valve and bearings within the housing when threaded thereto. The insertion tool comprises a generally cylindrical member having one end of a small enough diameter size and of a sufficient length to enable passing the end through the bore of the device and wherein the end is further characterized to have a rounded aspect, and another end of a larger diameter than the bore of the device to prevent passage therein.