Non-invasive detection of the occurrence of apneae or...

Details Non-invasive detection of the occurrence of apneae or... Non-invasive detection of the occurrence of apneae or...

2006-07-05

2009-11-03

Bockelman, Mark W (Department: 3766)

Surgery

Diagnostic testing

Cardiovascular

C600S513000, C600S529000

Reexamination Certificate

active

07613507

ABSTRACT:
A device for the non-invasive detection of apneae or hypopneae in a patient. This apparatus collects the patient's endocardial acceleration using an external acceleration sensor (12) able to be maintained in contact with the patient's thoracic wall (10). An analysis is made to determine at least one parameter that is function of collected endocardial acceleration and to conditionally deliver an apnea or hypopnea alert signal as a function of the value taken by this parameter. This parameter can notably be a function of one and/or the other of the two endocardial acceleration peaks over one given heart cycle, the first peak (PEA I) corresponding to the ventricular isovolumetric contraction phase and the second peak (PEA II) to the ventricular isovolumetric relaxation phase.

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Floyd B. Willis, MD, Amber L. Isley, MD, Yonas E. Geda, MD, MSc, Luther Quarles, IV, and Paul A. Frederickson, MD. “Resolution of Syncope With Treatment of Sleep Apnea.” The Journal of the American Board of Family Medicine, vol. 21, No. 5 (Sep.-Oct. 2008): 466-468.

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