Passing a wire through a diseased heart valve is a bit like threading a wet noodle into a garden hose while the tap water is flowing.
Passing a wire across a heavily calcified heart valve is the first step in many modern procedures to repair or replace it. But threading it through the jet of blood streaming out of the patient's narrowed valve can be a major technical challenge, especially since knocking bits of built-up calcium can trigger serious health problems.
Doctors at Mayo Clinic recently had an idea: What if they could aim the wire at the valve using a special catheter with a small funnel on the end to capture the blood flow and center the gadget right above the jet? That idea will be put to use in a human clinical trial later this year as part of a collaboration between Mayo and Boston Scientific Corp. — a long-running collaboration being publicly unveiled Wednesday morning.
"In the past, we've had companies come down and try to sell us something. They'd want to collaborate, and then try to sell us something. This has been about, how do we make a better product?" said Jim Rogers, a patent lawyer and chairman of Mayo's tech arm, Mayo Clinic Ventures. Boston Scientific was "willing to trust us, and we were willing to trust them, and I think good things have come of that."
The collaboration agreement between one of the state's most storied health care providers and one of Minnesota's largest medical-device companies — Massachusetts-based Boston Scientific has 5,000 employees in the state — was quietly brokered three years ago and allowed to work without any public announcement.
Both sides describe the collaboration as a leap of faith.
"This really starts at the beginning. It's going in with a blank sheet of paper, not us coming in with specific products and ideas," said Kevin Ballinger, a medical-device engineer and senior vice president with Boston Scientific. "It's engineers and physicians in their environment, jointly understanding what are some of the unmet clinical needs, before talking about product solutions."
More than 50 ideas have been run through the collaborative system already, and the centering catheter is one that has made it to the verge of testing in humans. Another one expected to enter clinical trials later this year is a new use for Boston Scientific's existing Precision Spectra Spinal Cord Stimulator.