Medical Innovations by Women

Women have made great strides in many fields that previously – and to some degree still – were considered the domain of men, such as law and medicine.

There are scores of accomplished women who have not been acknowledged for their achievements in a variety of fields. Culture, gender bias and stereotyping play into this lack of recognition. Here’s a look at some of the women who have made outstanding contributions in medicine.

Barbara S. Askins
• Year of birth: 1939
• Birthplace: Belfast, Tennessee
• Occupation: Chemist
• Invention: Used radioactive material to enhance images from space
Barbara Askins is a NASA scientist. She is best known for inventing in the 1970s a method to enhance photographs taken from space. Prior to Askins’ inventions, these photographs were often blurred or lacked definition. By exposing negatives to radiation Askins was able to produce images with greater density and contrast. Her invention had applications outside space exploration. It was used to improve the clarity of X-rays – which meant getting readable X-rays while exposing patients to less radiation – and to restore old photographs.

Patricia Bath
• Year of birth: 1942
• Birthplace: New York City, New York
• Occupation: Ophthalmologist/inventor
• Invention: Laser tool to treat cataracts
Patricia Bath is best known as the inventor of the Laserphaco Probe, a device that uses laser technology to treat cataracts. Bath is a pioneer in other regards as well. She was the first African American to complete a residency in ophthalmology, the first female faculty member in the Department of Ophthalmology at UCLA’s Jules Stein Eye Institute and the first African American female doctor to receive a patent. She is an advocate for the use of telemedicine to bring medical services to remote areas. In 2007, the Daily Telegraph named her one of the top 100 living geniuses.

Ruane Sharon Jeter
• Year of birth: 1959
• Birthplace: Los Angeles, California
• Occupation: Inventor
• Invention: Invented toaster with a digital timer
Ruane Jeter is nothing if not versatile — she has several patents for medical devices, including a disposable scalpel, a drug cartridge and a self-injection device. She also invented a toaster with a digital timer that allows users to choose how well they want their bread toasted. She collaborated with her sister, Sheila, to develop a multi-functional machine that included a stapler, staple remover, pencil sharpener and other features.

Ann A. Kiessling
• Year of birth: 1942
• Birthplace: Baker City, Oregon
• Occupation: Reproductive biologist
• Invention: Groundbreaking work in stem research, in vitro fertilization
Ann Kiessling discovered reverse transcriptase – converting RNA to DNA – in normal human cells in 1979. Prior to this, it was assumed that reverse transcriptase was an enzyme found only in retroviruses such as HIV. Her research into eggs and embryos led to advances in Human In Vitro Fertilization (IVF).

Hayat Sindi
• Year of birth: 1967
• Birthplace: Mecca, Saudi Arabia
• Occupation: Biochemist
• Invention: Penny-size paper detects disease by analyzing bodily fluids
Hayat Sindi was born in Saudi Arabia, a country where women until last year could not even drive and where they have limited choices in education and career. Sindi persuaded her family to let her go to school in the United Kingdom. She studied pharmacology at King’s College London and biotechnology at the University of Cambridge. She holds patents for a simple, low-tech diagnostic tool that could significantly change medical treatment in poor countries. The small, paper-like device detects disease by analyzing bodily fluids such as saliva, urine, or blood.

Esther Sans Takeuchi
• Year of birth: 1953
• Birthplace: Kansas City, Missouri
• Occupation: Chemical engineer
• Invention: Developed Li/SVO batteries
In 1987, materials scientist and chemical engineer Esther Sans Takeuchi developed lithium/silver vanadium oxide (Li/SVO) batteries for implantable cardiac defibrillators (ICDs). These were much smaller than the previously used batteries and lasted up to five times as long, making ICDs easier to implant and reducing the need for replacement surgery. Takeuchi, a distinguished professor in the chemistry department at Stony Brook University and a chief scientist at Brookhaven National Laboratory, holds almost 150 patents.

Ann Tsukamoto
• Year of birth: 1952
• Birthplace: California
• Occupation: Scientist
• Invention: Invented process to isolate human stem cells
Ann Tsukamoto played a key role in the development of a method to isolate human stem cells. Stem cells are unspecialized cells capable of renewing themselves through division. Under certain conditions, they can be induced to become tissue or organ-specific cells with special functions, thus serving as an internal repair system. Tsukamoto’s work has led to great advances in stem cell research and could further advance cancer and other diseases research.

Laura van ‘t Veer
• Year of birth: 1957
• Birthplace: The Netherlands
• Occupation: Molecular biologist
• Invention: Gene-based tissue test for breast cancer
Laura van ‘t Veer invented a gene-based tissue test that enables targeted treatment of breast cancer. By providing a more reliable prognosis, patients and doctors are better able to decide whether chemotherapy is necessary.

Flossie Wong-Staal
• Year of birth: 1947
• Birthplace: China
• Occupation: Molecular biologist
• Invention: Helped genetic mapping of HIV virus
Molecular biologist Flossie Wong-Staal was born in China and came to the United States by way of Hong Kong. After attending the University of California in Los Angeles, she began working at the National Cancer Institute. In 1983, Wong-Staal and her colleagues, simultaneously with French researchers, discovered the human immunodeficiency virus (HIV), which causes AIDS. Wong-Staal was the first person to clone HIV. This led to a genetic map of the virus and ultimately to a blood test for it. She later co-founded itherX Pharmaceuticals Inc. and serves as chief scientific officer and executive vice president of research and development. The Institute for Scientific Information named Wong-Staal the top woman scientist of the 1980s. In 2007, the Daily Telegraph named her one of the top 100 living geniuses.

Rachel Zimmerman
• Year of birth: 1972
• Birthplace: Ontario, Canada
• Occupation: Inventor
• Invention: Blissymbol Printer
When she was only 12, Rachel Zimmerman invented the Blissymbol Printer as part of a project for a school science fair. The device enables disabled people to communicate using a computer. The software program translates Blissymbols – a picture language developed by Charles Bliss to help those with cerebral palsy communicate – into printed language on a computer screen. This allows physically challenged people to communicate with others. Zimmerman now works at NASA’s Jet Propulsion Laboratory in Pasadena, California.