| 摘要 |
<p>The present invention relates to a respiratory aid appliance for tracheostomised and coniostomised patients, which aid appliance consists of a cylinder shaped valve housing (1) and to its mid part connected nipple (2) whose center line (3) forms a right angle to the center line (4) of the valve housing and which is devised to be mounted on and in the patients trachea inserted cannula. Valve housing and cannula are connected to each other in such a way that a plane through the center line (4) of the valve housing and a thereto parallel plane through the connecting nipple's (2) cnter line (3) reside in separate planes. To enable the patient using his organs of speech, the respiratory aid appliance can according to the invention be equipped with an, onto each valve housing aperture (5 and 6 respectively), attachable clack valve device. The clack valve device is shaped like a bowl formed casing (9, 10) and the clack valve consists of an elastic prestressed plate (11, 12) which at one of its edges (25) is chucked at the bottom of the casing and extends onto a respiratory aperture (18 and 19 respectively) in the bottom of the casing.</p> |
