发明名称 |
Flow restrictor for measuring respiratory parameters |
摘要 |
A flow restrictor is applied to a respiration-channeling device such as a tracheostomy tube, a mouthpiece, or a face mask. The flow restrictor creates a pressure differential which varies with volume flow rate. A pressure reading is taken on either side of the flow restrictor in the respiration-channeling device and from this, a volume flow rate is determined. A data acquisition device is used to derive further pulmonary function parameters from the volume flow rate.
|
申请公布号 |
US6224560(B1) |
申请公布日期 |
2001.05.01 |
申请号 |
US19980151914 |
申请日期 |
1998.09.11 |
申请人 |
HARVARD: THE PRESIDENT AND FELLOWS OF HARVARD COLLEGE |
发明人 |
GAZULA GOPALA KRISHNA MURTHY;GODLESKI JOHN J. |
分类号 |
A61B5/087;(IPC1-7):A61B5/08 |
主分类号 |
A61B5/087 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|