Other bioengineering milestones involve the first synthetic organs. The synthetic kidney was provided functional kind via the applying of engineering concepts with the Dutch doctor Wilhelm Kolf from the 1940s, and the primary heart pacemaker was implanted in 1958 in Sweden in the collaboration in the surgeon Åke Senning https://youtu.be/3j78-5sDzX0?si=TMh7OQwuVFf6ubXY