The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 1987
Filed:
Dec. 23, 1985
Applicant:
Inventor:
Michael D Hooven, Miami, FL (US);
Assignee:
Cordis Corporation, Miami, FL (US);
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604-9 ; 128748 ; 137510 ;
Abstract
An implantable valve for allowing the passage of cerebrospinal fluid (CSF) from a ventricle of the brain of a patient to a suitable drainage location in the body of the patient includes a movable diaphragm having one of its sides in contact with dura mater and its other side in pressure communication with the drainage location. A valve assembly, actuated by movement of the diaphragm in response to increased epidural pressure, controls passage of CSF from the ventricle to the drainage location.