Biography.guide
Home › People › Physician › Willem Johan Kolff
Portrait of Willem Johan Kolff

Willem Johan Kolff

1911 – 2009

Dutch medical researcher

Don't just read it — keep itBiographies to ownE-book · Audio · Video From $7 →

About Willem Johan Kolff

Lived 1911 – 2009 (aged 97). Willem Johan Kolff was a Dutch and American physician, internist, university teacher, rescue of Jews during the Holocaust, resistance fighter and inventor.

Willem Johan "Pim" Kolff (February 14, 1911 – February 11, 2009) was a pioneer of hemodialysis, artificial heart, as well as in the entire field of artificial organs. Willem was a member of the Kolff family, an old Dutch patrician family. He made his major discoveries in the field of dialysis for kidney failure during the Second World War. He emigrated in 1950 to the United States, where he obtained US citizenship in 1955, and received a number of awards and widespread recognition for his work.

Netherlands Born in Leiden, Netherlands, Kolff was the eldest of a family of 5 boys. Kolff studied medicine in his hometown at Leiden University, and continued as a resident in internal medicine at Groningen University. One of his first patients was a 22-year-old man who was slowly dying of chronic kidney failure. This prompted Kolff to perform research on artificial renal function replacement. Also during his residency, Kolff organized the first blood bank in Europe (in 1940). Kolff's first prototype dialyzer was developed in 1943, built from orange juice cans, used auto parts, and sausage casings. Over a two-year span, Kolff had attempted to treat 15 people with his machine, but all had died. In 1945, Kolff successfully treated his first patient, a 67-year-old woman, from kidney failure using his hemodialysis machine.

During World War II, he was in Kampen, where he was active in the resistance against the German occupation. Simultaneously, Kolff developed the first functioning artificial kidney. He treated his first patient in 1943, and in 1945 he was able to save a patient's life with hemodialysis treatment. In 1946 he obtained a PhD degree summa cum laude at University of Groningen on the subject. It marks the start of a treatment that has saved the lives of millions of acute kidney injury or chronic kidney failure patients ever since.

United States When the war ended, Kolff donated his artificial kidneys to other hospitals to spread familiarity with the technology. In Europe, Kolff sent machines to London, Amsterdam, and Poland. Another machine sent to Dr. Isidore Snapper at Mount Sinai Hospital in New York City was used to perform the first human dialysis in the United States on January 26, 1948 under the supervision of Drs. Alfred P. Fishman and Irving Kroop.

In 1950, Kolff left the Netherlands to seek opportunities in the US. At the Cleveland Clinic, he was involved in the development of heart-lung machines to maintain heart and pulmonary function during cardiac surgery. He also improved on his dialysis machine. At Brigham and Women's Hospital, with funding from New York real estate developer David Rose he developed the first production artificial kidney, the Kolff Brigham Artificial Kidney, manufactured by the Edward A. Olson Co. in Boston Massachusetts, and later the Travenol Twin-Coil Artificial Kidney.

He became head of the University of Utah's Division of Artificial Organs and Institute for Biomedical Engineering in 1967, where he was involved in the development of the artificial heart, the first of which was implanted in 1982 in patient Barney Clark, who survived for four months, with the heart still functioning at the time of Clark's death.

Impact Kolff is considered to be the Father of Artificial Organs, and is regarded as one of the most important physicians of the 20th century. the Harvey Prize in 1972, AMA Scientific Achievement Award in 1982, the Japan Prize in 1986, the Albert Lasker Award for Clinical Medical Research in 2002 the Russ Prize in 2003. In 1990 Life Magazine included him in its list of the 100 Most Important Persons of the 20th Century. He was a co-nominee with William H. Dobelle for the Nobel Prize in Physiology or Medicine in 2003. Robert Jarvik, who worked in Kolff's laboratory at the University of Utah beginning in 1971, credited Kolff with inspiring him to develop the first permanent artificial heart. Theodor Kolobow, the inventor of the silicone spiral coil membrane lung and pioneer of artificial organ development, was inspired by Kolff.

Kolff died three days short of his 98th birthday on February 11, 2009, in a care center in Philadelphia.

In April 2019, a life-sized bronze memorial bust of Kolff, created by Canadian sculptor Ryan Kurylo, was permanently installed at the Kolff Institute for Biomedical Engineering and Materials Science on the campus of the University of Groningen in the Netherlands.

Biography shop

Don’t just read it —
keep it.

Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.

  • E-book
  • Audio
  • Video
Browse the shop — from $7

Instant download · yours to keep · every purchase keeps this site free

Important facts

Birth century
Education
University of Groningen, Leiden University
Employers
University of Utah
Awards
Righteous Among the Nations; Japan Prize; Canada Gairdner International Award; Harvey Prize; Wilhelm Exner Medal; Lasker-DeBakey Clinical Medical Research Award; National Inventors Hall of Fame; Russ Prize; Cameron Prize of the University of Edinburgh; John Scott Award; Amory Prize; Cameron Prize for Therapeutics of the University of Edinburgh
Also known as
Willem Kolff, W. J. Kolff, Willem J. Kolff

People in Willem Johan Kolff's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Willem Johan Kolff's

Frequently asked questions

Who was Willem Johan Kolff?

Dutch medical researcher (1911–2009)

When was Willem Johan Kolff born?

Willem Johan Kolff was born on 14 February 1911 in Leiden.

When did Willem Johan Kolff die?

Willem Johan Kolff died on 11 February 2009 in Delaware County.

What was Willem Johan Kolff's occupation?

Willem Johan Kolff was a physician, internist, university teacher, rescue of Jews during the Holocaust, resistance fighter and inventor.

What nationality was Willem Johan Kolff?

Willem Johan Kolff was Dutch and American.

Sources & further reading

· Wikipedia: Willem Johan Kolff

· Wikidata: Q700136

· DBpedia: Willem Johan Kolff

Cite this page

APA: Biography.guide. (2026). Willem Johan Kolff. https://biography.guide/willem-johan-kolff/

MLA: "Willem Johan Kolff." Biography.guide, https://biography.guide/willem-johan-kolff/.

Chicago: "Willem Johan Kolff." Biography.guide. https://biography.guide/willem-johan-kolff/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

Page generated 2026-09-27 05:32 UTC