Ingemar Lundquist

Ingemar Henry Lundquist (October 19, 1921 – February 25, 2007) was a Swedish inventor and mechanical engineer. He became an American citizen in 1950.

Early life and education
Lundquist graduated from the Stockholm Institute of Technology in 1945 with a mechanical engineering degree. He migrated to the United States in 1948 and became an American citizen in 1950.

Career
He worked for various medical technology companies in the San Francisco Bay Area, including Advanced Cardiovascular Systems and E.P.Technologies.

Patents
Lundquist had hundreds of inventions, typically working in his garage or basement. He held more than a hundred patents. His inventions included over-the-wire balloon angioplasty, T.U.N.A., and somnoplasty. He also worked on cardiac stem-cell therapy.