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✨ Gemini Lagna

Kolff Willem

• Remembering (Feb 11, 2009)

★ February 14, 1911 · Leiden, South Holland
3views
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Moon Sign
Leo
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Sun Sign
Aquarius
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Ascendant
Gemini
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Nakshatra
Purva Phalguni
Birth Star
Founder/ originatorVocational awardMedicalScience Field-BiologyMentor/TutorResearcherEngineerSkills- Specialist
Biography

Who is Kolff Willem?

Dutch-American physician and inventor, a pioneer of hemodialysis and the development of artificial organs. "Pim" Kolff was the eldest son in a family of five boys. His father Jacob Kolff (19 March 1883, Middelharnis, 4 Oct. 1948, Beekbergen) was a general practitioner in Leiden. Later he became director of the tuberculosis Sanatorium in Beekbergen. His mother was Adriana Pieternella de Jonge (12 Sept 1886. Muiderberg - 12 Feb. 1981, Apeldoorn). Kolff studied medicine in Leiden (-1938). In May 1940 he established the first bloodbank on mainland Europe in five days time in the Zuidwal Hospital in The Hague, during the nazi-attack on Holland. In Groningen, when studying internal medicine under prof. Leo Polak Daniëls, he witnessed the painful death of a young man from acute kidney failure. This stimulated his interest in artificial-organ development. In the night of 14/15 May 1940 his Jewish mentor prof. Leo Polak Daniëls (31 March 1872, Den Haag) and his spouse Catharina took their lives in Den Haag. That day Rotterdam was bombarded. Kolff was shocked. In 1941 Kolf decided to leave the University of Groningen, that became more and more under control of NSB and Nazi Party members. He went to the small city hospital in Kampen (1 July 1941), where he started his pioneering work to fabricate an artificial kidney under difficult (War Time) circumstances. The water pump needed to make the machine, was derived from a T-Ford, the bio-membranes came from a local butcher. In 1942 he developed the first artificial kidney. The original device, became the prototype for the contemporary hemodialysis machine. It was first used on 17 March 1943, but without success. On 11 September 1945, after 16 failures, he first managed to save a patients life by hemodialysis in Kampen. Her name was Maria Sofia Schafstadt, a Nazi sympathizer, but Kolff was glad to save her life. Her first words after awakening from caused by kidney failure coma were: "I am going to divorce my husband" (video). During World War II, Kolff actively resisted the occupation. He hid more than 800 persons in his hospital to save them from the forced labour and the camps of Nazis. When ships with prisoners passed Ijssel city Kampen, he went onboard te admit in his hospital persons who were to ill to be transported. He also adopted the six year old Jewish child Erik Meijler in his family. On 6 January 1946 he earned a cum laude doctorate in internal medicine from the University of Groningen. Many would follow. In the early years of his career in The Netherlands (1937-1950), Kolff stood alone in his conviction that engineering could assist doctors in the medical treatment of patients. He had to deal with huge resistance and resentment. For this Kolff went to America in 1950. Here he became a pioneering developer of the artificial kidney, heart, ear and eye. Kolff, called the Father of Artificial Organs, became one of the most laureated physicians of the 20th century. He obtained 13 honorary doctorates and 127 international awards. He was four times nominated for the Noble prize. In 1990 Life Magazine included him in its list of the 100 Most Important Persons of the 20th Century. In 2003 it was estimated that his inventions had saved or improved the life of more than 20 million people. Personal Kolff married on 4 September 1937 in Apeldoorn Janke Cormelia Huidekoper (5 November 1913, Semarang - 25 February 2006, Port Townsend (USA)). Both got the Yad Vashem award for their contribution
Latest Info

Latest Updates

Update at: Apr 1, 2026

Kolff Willem

Willem Johan Kolff (1911–2009) was a Dutch-born physician and inventor who pioneered the development of dialysis technology. He is widely regarded as a father of hemodialysis for creating the first practical artificial kidney and advancing life-sustaining renal replacement therapy.

Biographical notes

  • Born in Leiden, Netherlands in 1911.
  • Best known for inventing the first functional dialysis machine and demonstrating sustained dialysis for patients with kidney failure.
  • His work laid the groundwork for modern dialysis programs and renal replacement therapy used around the world.
  • Passed away in 2009, leaving a lasting legacy in nephrology and medical device innovation.

Key achievements

  • Invented the first practical artificial kidney (hemodialysis machine).
  • Developed early dialysis devices using innovative design concepts, including the rotating drum approach and unconventional membrane materials.
  • Helped establish dialysis as a viable, long-term treatment option for end-stage renal disease, transforming patient care and survival prospects.

News

Public coverage of Kolff focuses on his historical impact and the evolution of dialysis technology. After his passing, obituaries and tributes appeared in medical journals and major media, highlighting his pioneering contributions. Ongoing retrospectives, anniversary features, and educational material continue to place his work in the context of modern organ-support therapies and biomedical engineering.

Public profile and social media

Kolff did not maintain personal social media profiles. There are no widely verified public accounts bearing his name. Information about his life and work is preserved through medical histories, institutional archives, and educational resources that recount the development of dialysis and Kolff’s role in it.

Recent projects and legacy

Current efforts in renal replacement research and the history of dialysis build on Kolff’s foundations. Educational exhibits, scholarly articles, and historical analyses continue to explore his innovations, the early challenges of dialysis development, and the ongoing evolution of patient care technologies. His legacy lives on in the continued use and refinement of dialysis devices and in the ongoing quest to improve life quality for people with kidney disease.

Additional notes

Kolff’s work earned him international recognition as a pioneer in biomedical engineering and nephrology. His contributions helped transform a once fatal condition into a manageable chronic disease for millions of patients worldwide.

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Which planetary combinations are in Kolff Willem's birth chart?

1 FOUND

Kolff Willem's chart shows 1 challenging combination.

Planetary Combinations
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What do Kolff Willem's numerology numbers say?

Kolff Willem's core numbers are Destiny 2, Soul Urge 6, Personality 5, Karmic Debt 14.

◎Destiny
2

Chaldean Destiny 2 indicates success through cooperation and harmony. It supports mediation, supportive leadership, and partnership-based growth.

❖Soul Urge
6

Chaldean Soul 6 desires love, belonging, and responsibility. It seeks harmony at home and fulfillment through care and service.

◇Personality
5

Chaldean Personality 5 appears energetic, adaptable, and adventurous. Others often see curiosity, movement, and flexibility.

⚖Karmic Debt
14

Chaldean Karmic Debt 14 indicates lessons around freedom and moderation. It asks you to control excess, improve boundaries, and practice responsible choices.

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Life Events & Planetary Transits

Key events mapped against the active Dasha and planetary transits at the time.

1937
Relationship
Marriage 4 September 1937 in Apeldoorn (Janke Cormelia Huidekoper)
1940
Death
Death of Significant person 15 May 1940 in Den Haag (Suicide of Leo Polak Daniëls and his wife)
1941
Career
New Job 1 July 1941 in Kampen (Kampen city hospital)
1943
Death
Death of Child 19 July 1943 in Kampen (Gualtherus Constantinus Marius Kolff)
1945
Career
Great Achievement 11 September 1945 in Kampen (saved Maria Schafstadt with hemodialysis)
1946
Career
Published/ Exhibited/ Released 6 January 1946 in Groningen (dissertation)
1948
Death
Death of Father 4 October 1948 in Beekbergen
1956
Career
Great Achievement 1956 (First heart-lung machine)
1967
Career
New Job 1967 in Salt Lake City (professor)
1981
Death
Death of Mother 12 February 1981 in Apeldoorn
2009
Death
Death, Cause unspecified 11 February 2009 in Newtown Township Delaware chart Placidus Equal_H. Work : Prize 7 October 2013 at 3:30 PM in Kampen (Israëlische Yad Vashem-onderscheiding voor Willem Kolff)
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