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:
Aug. 30, 1988
Filed:
Oct. 27, 1987
Applicant:
Inventors:
Sandra L Miller, North Miami, FL (US);
Leonard Pinchuk, Miami, FL (US);
Assignee:
Cordis Corporation, Miami, FL (US);
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604-8 ; 604264 ; 604280 ; 1563042 ;
Abstract
A ventricular catheter and a method for making same are provided wherein the catheter comprises a tubing assembly including a porous portion and a non-porous portion. The porous portion has a high surface density of very fine pores which are substantially resistant to blockage under in vivo conditions yet allow cerebrospinal fluid to pass therethrough when the assembly is attached to a cerebrospinal fluid pressure relief system for the treatment of hydrocephalus. The porous portion is generally formed by extruding a fiber forming polymer which is wound directly onto a mandrel.