NuVasive employee Chris Wing, left, and Jenna Colburn demonstrate technology that trains surgeons in lateral spine surgery at NuVasive’s headquarters. Surgeons come to its campus from around the world to learn the technique. Photo by Jamie Scott Lytle.

NuVasive employee Chris Wing, left, and Jenna Colburn demonstrate technology that trains surgeons in lateral spine surgery at NuVasive’s headquarters. Surgeons come to its campus from around the world to learn the technique. Photo by Jamie Scott Lytle.

A year ago, Chris Barry became the CEO of NuVasive, one of San Diego’s largest medical device companies...