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Speech valve with a cover element, comprising a piston-shaped closure element
专利权人:
发明人:
Andreas Fahl
申请号:
US15238237
公开号:
US10052446B2
申请日:
2016.08.16
申请国别(地区):
US
年份:
2018
代理人:
摘要:
The invention relates to a speech valve for laryngectomy or tracheotomy patients, comprising a cover element, a housing part and a filter, the cover element comprising a piston-shaped closure element and said closure element being connected to the cover element to form one piece therewith. The cover element comprises an elastic material and by deforming at least part of the cover element the closure element closes the speech valve distally of the filter.
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中国工程科技知识中心
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