Filter for use in an acoustic imaging device
AssigneeHood Laboratories
InventorCharles Lane
Life of this patent
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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 so as to avoid cross-contamination between patients whose breath enters the pipe while protecting the speaker from humidity.
Claims6
In a device for performing acoustical imaging of portions of the internal morphology of the respiratory tract, which includes an extended hollow acoustic pipe having a speaker at one end and being open at its opposite end and at least one first microphone located on the pipe's wall, the improvement comprising:
- a thin walled tube being hollow and open on one end, which includes a filter therein for protecting the speaker from humidity said tube being so dimensioned so as to fit snugly in the acoustic pipe;
- and
- said tube being substantially coextensive with the acoustic pipe whilst not affecting the acoustic testing done by the device.
Dependencies are inferred from the claim text.