Non-invasive device and method for the diagnosis of...

Details Non-invasive device and method for the diagnosis of... Non-invasive device and method for the diagnosis of...

2005-04-19

2005-04-19

Nasser, Robert L. (Department: 3736)

Surgery

Diagnostic testing

Respiratory

C073S023300, C422S084000

Reexamination Certificate

active

06881193

ABSTRACT:
The invention involves a device and method for ascertaining the functioning of the respiratory system and determining whether a pulmonary embolism is present. The device comprises an apparatus containing sensors which measure the amount of a particular gas expired from a patient's lungs, including a non-ambient gas which is previously provided to the patent. From this data, a processor computes the concentration of expired gas as a function of expired volume and displays the results on a screen. By comparing the results to predetermined values from afflicted and healthy patient populations, an accurate determination can be made regarding the presence of a pulmonary embolism.

REFERENCES:
patent: 4363327 (1982-12-01), Clark
patent: 4459994 (1984-07-01), Slemeyer
patent: 6254546 (2001-07-01), Vierto-Oja
patent: 6599253 (2003-07-01), Baum et al.

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