Read the bio below and try to give details on john holter 's: - known for - death date - children - birth date - name Bio: john w. holter -lrb- april 1 , 1916 -- december 22 , 2003 -rrb- was a toolmaker working for the yale and town lock company stamford connecticut . his son charles case '' casey '' holter was born on november 7 , 1955 with a severe form of spina bifida . shortly after birth he contracted meningitis , which caused his head to expand rapidly . his parents were told that he had developed '' water on the brain '' or hydrocephalus . as luck would have it holter 's son was being looked after in philadelphia , where the surgeons nulsen and spitz had already demonstrated that a ventricle-to-atrium diversion system could work . what they needed was an inexpensive and practical valve that could control the direction of the flow and maintain normal cranial pressure . a chance discovery showed holter , after a failed attempt in which a young boy died , that he could use a silicone one-way valve -lrb- pressure sealing -rrb- . after a medically suitable grade of silastic -lrb- silicone and rubber -rrb- was found , the device was patented , and john holter set up a company , holter-hausner international , to manufacture the cerebral shunts . although he was unable to save his son casey , his design , the spitz-holter valve -lrb- also called the spitz-holter shunt -rrb- continues to help millions around the world since the late 1950s .
Answer:
- known for is silicone one-way valve- death date is december 22 , 2003 december 22 , 2003- children is charles case '' casey '' holter- birth date is april 1 , 1916 april 1 , 1916- name is john w. holter , dsc , cbe