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February 14, 2013
16:16 EDTMASIMasimo announces repurchase program up to 6M shares
Masimo announced that its board has authorized the repurchase of up to 6M shares of the company's common stock. The repurchase program will become effective on February 20, 2013 and is expected to continue for a period of up to 36 months unless it is terminated earlier by the board.
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March 30, 2015
08:19 EDTMASIMasimo reports new study presented shows benefit of ORI
Masimo announced that a new clinical study presented at the International Anesthesia Research Society's 2015 Annual Meeting showed that Masimo's latest noninvasive patient monitoring parameter, Oxygen Reserve Index or ORI, could help clinicians in the early detection of an impending desaturation in patients receiving supplemental oxygen. Pulse oximetry, or SpO2, provides noninvasive and continuous visibility to arterial blood oxygenation in hypoxia and normoxia. Clinicians often use arterial oxygen partial pressure, or PaO2, which can be intermittent and delayed, to monitor levels of hyperoxia. Between invasive sampling, changes in PaO2 can be difficult to assess, and therefore hypoxia or hyperoxia can occur unexpectedly. ORI, Masimo's 11th rainbow parameter, is a relative index of the partial pressure of oxygen in arterial blood in the range of 100 to 200 mmHg. ORI is intended to supplement, not replace, SpO2 monitoring and PaO2 measurements. Researchers included for analysis 1,540 ORI samples using a Masimo Radical-7 Pulse CO-Oximeter. Regression analysis was used to compare PaO2 from clinically indicated arterial blood gas samples to ORI and calculated changes in ORI to calculated changes in PaO2. During a total of 2,377 monitored hours, researchers found that ORI could be calculated about 91.5% of that time, and indicated that ORI was a noninvasive method for measuring moderate hyperoxia.

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