When Marko Ollikainen began his career at the University Hospital of Helsinki’s biolab, working on a brain research project, he probably didn’t expect medical electronics to become his life’s work. Now, three decades later, he’s witnessed the evolution of the field from rulers and measuring tapes to cutting-edge design software and still enjoys his work just as much as day one.

‍

Components and collaboration

‍

“I design electronics for medical devices,” Marko explains. The work starts with selecting the right components: what’s needed to make the device function as intended? Then come the circuit diagrams and the layer-by-layer design of the circuit board. Collaboration with mechanical designers is crucial. The placement of critical components, mounting holes, and space management all require precise teamwork. Software developers also come in since most devices tend to be controlled by a microprocessor these days.”

‍

But designing electronics for medical devices isn’t just about wires and circuit boards. It’s also about interpreting standards and safety requirements. “You have to consider how they apply to the specific device and what safety aspects need to be addressed,” Marko says. This variety is exactly what makes the work engaging for him even after all this time.

‍

Tools of the trade then and now

‍

How has the work of an electronic engineer changed over the years? One of the biggest changes during Marko’s long career has been the development of new design software. “Nowadays, you can export 3D step files directly from the software and just hand them over to the mechanical designers. It’s all very fast and convenient. It was a whole different story 20 years ago when everything was done by hand.”

‍

Meaningfulness of expertise

‍

At Innokas, Marko especially appreciates the variety of the work. “You get to see so many different projects and ideas from many different customers. Even after all these years, there’s always something new to learn. If you ask me, that’s what keeps the job meaningful.” Of course, the fast pace and ever-changing regulations bring their own challenges, but that’s just part of the charm.

‍

And what’s the best part of the job? “It’s when you spot a flaw in a customer’s plan and get to guide them in the right direction. That’s when the expert role really comes to life. When the device finally passes all the tests and approvals, it gives me profound sense of purpose”

‍

Marko’s motto sums up his attitude perfectly: “Every day is a good day to learn something new.”