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Method and apparatus for measuring intracranial fluid pressure

  • US 4,841,986 A
  • Filed: 09/17/1987
  • Issued: 06/27/1989
  • Est. Priority Date: 09/19/1986
  • Status: Expired due to Term
First Claim
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1. A method of serially monitoring the intracranial fluid pressure of a subject which comprises alternately obtaining measurements related to the magnitude and direction of the volume displacement of an ear drum in response to induced stapedial muscle contraction and the acoustic compliance of said eardrum when pressure on opposite sides thereof is equalised by tympanometry, and using said measurements serially to monitor the intracranial fluid pressure of the subject.

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