The pacemaker was developed almost simultaneously by two different groups but most authorities give the nod to the first pacemaker implant to Sweden. The device was developed in the kitchen of an engineer named Sven Elmqvist who worked for a company called Elema. Elmqvist was approached by a persistent woman who was convinced her ailing husband's Heart disease could be managed if he could just get electrical stimulation consistently to his heart. Elmqvist built the device and it was implanted in Arne Larsson in 1952. Arne Larsson has since passed away but he lived another 50 years with pacemakers and became a huge pacemaker advocate.
Meanwhile, Earl Bakken worked on a similar device in Minneapolis, Minnesota. He built his pacemaker based on plans he got out of Popular Mechanics for a metronome (to get the precise timing).
First pacemaker, Sweden, second one, US.
The first pacemaker was invented and built in Canada in 1949 by John Hopps, an electrical engineer from the National Research Council of Canada.
John hopps invented the first external pacemaker. Later Earl Bakken improved this pacemaker by making it battery powered. And then Wilson Greatbatch invented the first implantable pacemaker!
the answer is in the question. if the pacemaker is replaced the leads are used for it.
Pacemaker
the electronic pacemaker was invented by Edgar H Booth, in 1926, but it was used in 1928.
John Hopps, a Canadian, invented the first heart pacemaker. At the age of 21, He was able to build the first pacemaker in 1950.
The first pacemaker with plutonium 238 was implanted in Paris (France) in 1970, as a collaboration between Medtronic (USA) and Alcatel (France).
John hopps invented the first external pacemaker. Later Earl Bakken improved this pacemaker by making it battery powered. And then Wilson Greatbatch invented the first implantable pacemaker!
pacemaker
In America
otis boykin
pacemaker is a pacemaker
My grandmother received one today - she was 99 Oct 25th 2007.