Irvine-based medical device maker Masimo Corp. today posted second-quarter results that missed Wall Street expectations.

It makes patient monitoring devices that measure things such as oxygen and hemoglobin.

The company posted a profit of $13.8 million, 19% lower than 2013’s second quarter and below the $16.5 million analyst estimate.

Masimo’s revenue rose 3% to $140.9 million. Wall Street expected it to have $145.8 million in revenue.

Masimo also issued 2014 guidance that was in-line with consensus projections.

The company said it could see a profit of $70.5 million to $73.9 million versus the $71 million consensus.

Masimo projected full-year revenue of $588 million to $593 million compared to analysts’ estimate of $590.1 million.

Shares of Masimo closed down 1% to a market value of $1.4 billion. The company issued its financial results after market close.