SPEECH VALVE FOR PERSONS HAVING UNDERGONE A LARYNGECTOMY OR TRACHEOTOMY
First Claim
1. A speech valve for persons having undergone a laryngectomy or tracheotomy, comprising:
- a housing having a cover part, a delimiting wall, and a bottom part, air passageway openings formed in each of the cover part and wall, a proximal opening formed in the bottom part;
an annular shaped filter supported around the wall and sealed by the cover part; and
a valve element displaceably supported within the wall and which is biased into communication with a central opening of the cover part to permit bi-directional airflow through the housing, the valve element being displaceable in a direction counter to its bias and along a central main axis extending through an interior of the wall to an airflow interrupting position in which the valve element is moved onto a valve seat configured about the proximal opening.
1 Assignment
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Accused Products
Abstract
To solve the problem of making available a speech valve for persons who have undergone a laryngectomy or tracheotomy, which speech valve in particular has a long useful life, a speech valve is proposed having a housing with a proximal opening and at least one filter at least partially received in the housing, and with a piston-like valve element, wherein the filter at least partially surrounds the valve element, wherein the valve element is movable on a valve seat, arranged on the proximal opening, in order to produce a closure position and can be returned with a spring action to an open position of the speech valve, and wherein the valve element has a lower end which faces towards the proximal opening and which is assigned to the valve seat in the open position and, with the valve seat, forms a gap through which an air stream can be guided.
0 Citations
8 Claims
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1. A speech valve for persons having undergone a laryngectomy or tracheotomy, comprising:
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a housing having a cover part, a delimiting wall, and a bottom part, air passageway openings formed in each of the cover part and wall, a proximal opening formed in the bottom part; an annular shaped filter supported around the wall and sealed by the cover part; and a valve element displaceably supported within the wall and which is biased into communication with a central opening of the cover part to permit bi-directional airflow through the housing, the valve element being displaceable in a direction counter to its bias and along a central main axis extending through an interior of the wall to an airflow interrupting position in which the valve element is moved onto a valve seat configured about the proximal opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification