Pump

Researchers have developed an implantable pump that can deliver chemotherapy drugs directly into the brain to fight hard-to-treat cancer. In a phase 1b trial, patients were able to undergo the therapy while going about their day-to-day activities.

How exactly kidney cells transport blood through the organ's tubes has remained a mystery. Now researchers at Johns Hopkins University have investigated the mechanical forces at work and found a previously unobserved pumping action by kidney cells.

Although you can't just stop using your heart altogether when it's damaged, you can make its job easier. That's what Sunshine Heart's C-Pulse system was designed to do, and a current study suggests that it does indeed help victims of heart failure recover more quickly.

The swimming actions of jellyfish have inspired research into flexible implantable pumps.