IRhythm Technologies, a US-based medical device maker, has raised $15m in its series C round from a consortium including St Jude Medical, a US-based healthcare technology provider.
Venture capital firm New Leaf Venture Partners led the C round as a new investor, and was joined by peers Mohr Davidow Ventures and Synergy Life Science Partners as well as St Jude.
In May last year, St Jude led a $10m investment round in iRhythm Technologies to market its heart monitor to customers.
Mohr Davidow Ventures and Synergy Life Science Partners, alongside Stanford University and UNC Kenan-Flagler Private Equity Fund, backed the 2009-vintage $6.5m series A extension that was added to the initial $12.5m raised in 2007, according to news provider VentureWire.
Bill Willis, executive president of iRhythm, said: "This funding will enable iRhythm to rapidly expand our commercial efforts given the high demand for the Zio Patch [pictured]."