Filter for use in an acoustic imaging device

Surgery – Diagnostic testing – Respiratory

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Details

600533, A61B 508

Patent

active

061395048

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.

REFERENCES:
patent: 5195528 (1993-03-01), Hok
patent: 5666960 (1997-09-01), Fredberg et al.
patent: 5823965 (1998-10-01), Rasmussen
patent: 5902237 (1999-05-01), Glass

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