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Gemini Lagna

Kolff Willem

Remembering (Feb 11, 2009)

February 14, 1911 · Leiden, South Holland
1views
Moon Sign
Leo
Sun Sign
Aquarius
Ascendant
Gemini
Nakshatra
Purva Phalguni
Birth Star
Founder/ originatorVocational awardMedicalScience Field-BiologyResearcherEngineerSkills- SpecialistMentor/Tutor
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: Sep 14, 2026

Willem Johan Kolff (born February 14, 1911, Leiden, Netherlands – 2009)

Willem Johan Kolff was a Dutch-born physician and inventor widely regarded as the father of dialysis. He pioneered renal replacement therapy by developing the first practical artificial kidney and advancing the science and practice of hemodialysis.

Quick facts

  • Birth: February 14, 1911, Leiden, Netherlands
  • Death: 2009
  • Field: Medicine, biomedical engineering
  • Signature achievement: Development of the artificial kidney dialysis machine
  • Legacy: Foundational influence on modern dialysis and renal replacement therapies

Biography and key achievements

Kolff built the first practical extracorporeal artificial kidney in the 1940s, conducting early dialysis work in wartime hospitals in the Netherlands. His innovations laid the groundwork for how kidney failure is treated today. After World War II, he continued his research and later moved to the United States, where his work further influenced the global adoption of dialysis as a standard life-sustaining therapy. His relentless experimentation and collaboration with clinicians helped transform a speculative concept into routine medical care that saves countless lives.

Impact and legacy

Kolff's work established dialysis as a viable, ongoing treatment for kidney failure, deeply shaping nephrology and biomedical engineering. The dialysis machine he helped conceive became the template for subsequent devices and manufacturing approaches, accelerating improvements in efficacy, safety, and accessibility. His contributions are taught in medical and engineering curricula worldwide and are commemorated by institutions that preserve the history of renal replacement therapy.

News, social media, and public presence

As a historical medical figure who passed away in 2009, Kolff does not maintain personal social media profiles. Public information about him appears in academic journals, medical histories, museum exhibits, and institutional retrospectives. Tributes and retrospective articles are common around anniversaries of his birth or milestones in dialysis technology.

Recent projects and resources

Current public projects emphasize preserving Kolff's legacy and educating new generations about dialysis history and renal replacement therapy. Museums, universities, and medical foundations maintain archives, oral histories, and educational materials that highlight his innovations. Contemporary dialysis research continues to build on the principles he helped establish, with ongoing work toward more portable, efficient, and patient-friendly devices.

For verified information, consult reputable medical history sources, university archives, and museum collections that profile Kolff’s life and the development of dialysis technology.

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

1 FOUND

Kolff Willem's chart shows 1 challenging combination.

Planetary Combinations

Which dasha periods did Kolff Willem live through?

VIMSHOTTARI

Vimshottari dasha periods recorded for Kolff Willem, in order.

PREVIOUSMar 10, 2026 - Apr 1, 2026
Ketu / Mercury / Mars

What do Kolff Willem's numerology numbers say?

Kolff Willem's core numbers are Life Path 1, Destiny 5, Soul Urge 4, Personality 1, Kabbalah Number 7, Birth 5.

Life Path
1

Chaldean Life Path 1 is the path of the Sun—independence, initiative, and leadership. It indicates self-made growth and lessons in confident direction.

Destiny
5

Chaldean Destiny 5 indicates dynamic progress through change and versatility. It supports travel, sales, communication roles, and fast adaptation.

Soul Urge
4

Chaldean Soul 4 desires stability and certainty. It seeks routine, reliability, and a grounded structure to feel secure.

Personality
1

Chaldean Personality 1 appears confident, direct, and independent. Others often see leadership energy and strong personal will.

Kabbalah Number
7

Kabbalah Number 7 reflects an inner spiritual code of wisdom and truth-seeking. It supports research, contemplation, and spiritual refinement.

Birth
5

Explore Birth Number 5 in Vedic astrology: personality traits, career paths, and lucky indicators for adaptable, freedom-loving individuals seeking destiny clues.

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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