Device and a method for measuring the resistance of the respiratory tract
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United States of America Patent
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-
Feb 9, 1999
Grant Date -
N/A
app pub date -
Sep 2, 1997
filing date -
Sep 13, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for measuring the resistance of the respiratory tract with the interrupter method consists essentially of a housing (2) which comprises an air passage (3), and of a closing arrangement (5) for temporarily closing the air passage (3). The closing arrangement (5) may be operated via drive means (8). The drive means (8) are arranged and/or designed such that they can be accelerated in a load-free manner from a rest position (R) into an effectual condition (W). In the effectual condition (W) the drive means (8) engages with the closing arrangement and move the latter from a home position (A) into a closing position (V). With this, it is essential that at the point in time of the coming into engagement of the drive means (8) and the closing arrangement (5), the drive means has a certain energy content.
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