![jon sacker](https://dam.upmc.com/-/media/upmc/testimonials/regenerative-medicine/sacker.png?rev=990827d7b6ff46da9c6dda43e71f30d4&la=en&h=277&w=370&hash=8C6DDE3366261A17B7C9C2053144847C)
Suffering from cystic fibrosis and rejecting the transplanted lungs he had gotten just 2 years ago, Jon Sacker came to UPMC from his hometown in Moore, Oklahoma, as a last resort. He became the first person in the U.S. to be implanted with the Hemolung Respiratory Assist System (RAS); a month later, he underwent a double lung transplant and today is on the road to recovery.