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. 15, 1988
Filed:
Sep. 17, 1987
Jamshid B Ghajar, New York, NY (US);
Robert J Hariri, New York, NY (US);
Fathali G Ghadjar, New York, NY (US);
Neurodynamics, Inc., New York, NY (US);
Abstract
A catheter for placement into the ventricular system of the brain of a subject comprising a flexible elongated body having a wall thickness sufficient to contain and transport fluid therein and having a forward end and tip for insertion into the ventricular system of the brain of a subject; and a plurality of spaced apertures located in the forward end of the body spaced from the tip, each of the apertures extending through the wall thickness at an angle such that a portion of the wall thickness is visible when viewing the aperture perpendicular to the longitudinal axis of the body, thereby to minimize abrasion of brain tissue upon insertion of the catheter and to prevent choroid plexus and ependymal tissue from growing into the catheter apertures, thereby providing improved flow of fluid into or from said ventricular system. Also, methods of using and apparatus for making such catheters are disclosed herein.