Filter for use in an acoustic imaging device
US6139504A · kind A · utility
1Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1998 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Sep 9, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/085
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a device for acoustic imaging of internal morphology of the respiratory tract which utilizes a hollow acoustic pipe having a speaker on one end and microphones on its side wall the improvement comprising a disposable tube or sleeve which is intended to be coextensive with the pipe, having a filter at its far end and filters to fit over the microphones along with a lip or ring at its outer end so as to avoid cross-contamination between patients whose breath enters the pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.