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. 03, 2015
Filed:
Mar. 31, 2010
Eduard Berend Van Der Houwen, Groningen, NL;
Gijsbertus Jacobus Verkerke, Glimmen, NL;
Bernandus Franciscus Augustinus Maria Van Der Laan, Haren, NL;
Eduard Berend van der Houwen, Groningen, NL;
Gijsbertus Jacobus Verkerke, Glimmen, NL;
Bernandus Franciscus Augustinus Maria van der Laan, Haren, NL;
Academisch Ziekenhuis Groningen, Groningen, NL;
Rijksuniversiteit Groningen, Groningen, NL;
Abstract
A tracheostoma valve () comprises a main air passage structure provided with a main valve arrangement. The tracheostoma valve is switchable in response to a spurt of inhalation air from a breathing condition into a speaking condition, while the tracheostoma valve is switchable in response to a spurt of exhalation air from said speaking condition into said breathing condition. The main valve arrangement comprises an at least partly flexible bistable wall portion which has a circumferential bordering edge. At least part of the bordering edge forms a hinging means around which the bistable wall portion is hingeable between a first stable position in which an orifice of the main air passage structure is being blocked, and a second stable position in which said orifice is released.