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:
Dec. 28, 1976
Filed:
Jun. 18, 1975
Eugene B Spitz, Media, PA (US);
Richard E Brenz, Media, PA (US);
Charles C Hansford, Chester, PA (US);
Bio-Medical Research, Ltd., Lima, PA (US);
Abstract
An improved cerebrospinal fluid anti-syphoning device for insertion into the human body to provide control and regulation of fluid being transported from the lateral ventricles to another portion of the body. The improved fluid anti-syphoning device includes a fluid housing member which is adapted to contain a pair of check valves which control fluid flow through the housing member and prevents back flow from a downstream area to an upstream area. A central chamber within the fluid housing member encloses a combination fluid egress conduit and flexible diaphragm which in cooperative relation provide for a substantial termination of fluid flow when the down stream pressure becomes too low with respect to the upstream pressure. Specific construction of the fluid egress conduit and the flexible diaphragm provides for negation of possible terminal closure of the flow path through the anti-syphoning device under a wide range of conditions. The improved device includes a mechanism for manually actuating the flow through the outlet area of the housing member after the anti-syphoning device has been implanted within the human body.