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The Wade-Dahl-Till (WDT) valve is a cerebral shunt developed in 1962 by hydraulic engineer Stanley Wade, author Roald Dahl and neurosurgeon Kenneth Till. In 1960, Dahl's son Theo developed hydrocephalus after being struck by a car. A standard Holter shunt was installed to drain excess fluid from his brain; however the shunt jammed too often, causing pain and blindness, risking brain damage and requiring emergency surgery. Till determined that debris accumulated in the hydrocephalic ventricles could clog the slits in the Holter valves, especially with patients, such as Theo, who had had bleeding in the brain.
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∙ 14y ago
While Roald Dahl was known for his imaginative stories and characters, he did not invent the concept of a "shunt." A shunt is a medical device used to divert flow from one pathway to another within the body, typically to relieve pressure or redirect circulation. Dahl did write about fantastic inventions in his books, but the shunt itself is a real-world medical device unrelated to his work.
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What was Roald Dahls full name?
roald dahl. he didnt have a middle name.
Is Roald Dahl single?
No, Roald Dahl is not single.
What is Dahl's first name?
Roald Dahl.
Did Roald Dahl have a middle name?
Roald Dahl's middle name is Dahl.
When did Roald Dahl's father die and how old was Roald Dahl?
Roald Dahl's father, Harald Dahl, died in 1920 when Roald Dahl was only three years old.
What is Roald Dahl's birth name?
He was born Roald Dahl.
What is Roald Dahl's birth name?
He was born Roald Dahl.
Was Roald Dahl a man?
Yes. Roald Dahl was a man.
How big is Roald Dahl?
roald dahl is 6foot 6
How do you spell Roald Dahl?
people rember him because he wrote books and bought a joy to lives
What is roald dahl's favorite subject?
roald dahl's best subject is reading roald dahl's best subject is reading
Where was Roald Dahl?
Roald Dahl was born in Cardiff, Wales.Roald Dahl came from smethick.
