Inspire Medical Systems Inc has completed a Series E financing of $40 million. The financing round was strategically timed to coincide with the commercial launch of the Inspire Upper Airway Stimulation (UAS) therapy in the United States.

Last month, the FDA approved Inspire therapy, a fully implanted device for use in a subset of patients with moderate to severe obstructive sleep apnea (OSA) who are unable to use CPAP devices. Inspire therapy uses mild stimulation of the hypoglossal nerve to maintain an open airway during sleep.

The financing was led by OrbiMed in New York. Other new investors in this round are the Johnson & Johnson Development Corporation and Aperture Venture Partners. Existing investors of Inspire Medical Systems also participated in the round, including Kleiner Perkins Caufield & Byers, US Venture Partners, Synergy Life Science Partners, Medtronic, GDN Holdings, and TGap Ventures. OrbiMed Private Equity Partner, Chau Q. Khuong, will join the Inspire Medical Systems’ board of directors.

“We are pleased to have the support and confidence of this esteemed group of investors,” says Tim Herbert, Inspire Medical Systems president and CEO, in a release. “This round of funding will enable Inspire Medical Systems to invest in the people and programs necessary to make this much-needed treatment available to patients and physicians.”

“Inspire therapy fills an important and significant gap in the OSA treatment continuum,” says Khuong. “We believe that both physicians and patients will have great interest in this innovative new therapy.”

As part of the growth strategy of the company, Inspire also today announced that Richard Buchholz has been appointed as the chief financial officer (CFO). Buchholz is a veteran medical device CFO most recently serving as CFO of superDimension, which was acquired in May 2012. He brings a broad experience base in both privately held and public companies. Prior to joining superDimension, Buchholz served as CFO of Vascular Solutions. He started his career at Ernst & Young.

Inspire therapy is commercially available to patients at several centers in the United States, and additional US clinical centers will have the therapy available in the second half of 2014.