A jury has returned a verdict of infringement against Apple Inc., as part of a series of patent disputes with Masimo Corp., producing a damages award of $634 million which is seen in some quarters as an indicator that Masimo has the momentum against Apple.

Some Apple Watch users will be able to monitor their blood oxygen levels through their iPhone, thanks to a software update the company planned to issue Aug. 14. The Cupertino, Calif.-based company pulled the feature from its watches in the U.S. in 2024, following a patent dispute with Masimo Corp., of Irvine, Calif., that threatened an import ban.

News of the sale of Masimo Corp.’s consumer audio unit may be music to the ears of investors, even at the steep discount from its original purchase price. Samsung Electronics Co. Ltd.’s Harman International Industries Inc. unit snapped up the Sound United business for about $350 million – roughly one-third of the $1.025 billion Masimo paid for the company in 2022.

The U.S. FDA’s latest draft guidance on pulse oximeters drew comment from the International Standards Organization and the International Electrotechnical Commission, which are making the case that in addition to differences in pigmentation, the pulsatility of the tissue in contact with the device is also a factor in device performance.

The question of how skin pigmentation affects the performance of pulse oximeters has drawn the U.S. FDA’s close attention for several years, and the agency issued a draft guidance to address these questions. The draft guidance recommends that new and existing devices be evaluated to establish performance across different pigmentations, a development that would address concerns among clinicians and patients alike.

The U.K. government said it will take action to tackle potential bias in the design and use of medical devices after an independent review found that there is extensive evidence of poorer performance of certain technologies, like pulse oximeters, in patients with darker skin tones.

Masimo Corp. received a pinch of good news with the U.S. FDA’s clearance of its medical-grade fingertip pulse oximeter, Mightysat Medical, for over-the-counter (OTC) sale. The device uses the same technology as Masimo’s Set pulse oximetry used in hospitals and clinics.

The story of how pigmentation affects the accuracy of pulse oximetry is still in play in the U.S. even though the FDA issued guidance on the subject in 2013, but the latest advisory hearing on the subject has added a new confounder to the story.

The holidays are looking brighter for Masimo Corp. with two bits of good cheer this week for the company. Apple Inc. confirmed to BioWorld that it will preemptively pull two smartwatches from its website and retailers in response to a Masimo infringement case that persuaded the International Trade Commission to block their import.

In a wise move from Owlet Inc.’s point of view, the U.S. FDA cleared the company’s Babysat pulse oximetry sock for infants. The wire-free sock design permits safe and comfortable medical-grade monitoring for infants who might otherwise require extended hospitalization.