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:
Mar. 13, 1984
Filed:
Apr. 30, 1982
Eric D Blom, Indianapolis, IN (US);
Mark I Singer, Indianapolis, IN (US);
Hansa Medical Products, Inc., Indianapolis, IN (US);
Abstract
A low pressure prosthesis device includes a cylindrical housing having a proximal end with strap elements extending outwardly from the proximal end, a distal end and a port operatively cooperating with a tracheostoma in the neck of a patient. The cylindrical housing further includes a one-way valve structure comprised of an annular sealing rim positioned perpendicularly in the housing adjacent the distal end and a valve membrane hingedly mounted within the housing to cooperate with the annular sealing rim to provide the one-way valve structure. An annular collar flange extends outwardly from the housing and is positioned to abut against the esophagus tissue when the device has been positioned within a fistula connecting the esophagus to the tracheostoma. The valve membrane is movable from the closed to the opened position when air passes through the port from the tracheostoma to the esophagus to produce alaryngeal speech and sounds in the patient.