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:
Oct. 08, 1996
Filed:
May. 18, 1995
Luis A Davila, Cooper City, FL (US);
Carlo R De La Mata, North Miami Beach, FL (US);
Stephen J Querns, Boca Raton, FL (US);
Cordis Corporation, Miami Lakes, FL (US);
Abstract
An elastomeric valve partition is conventionally mounted on a catheter comprising a tubular catheter body. The valve partition defines a central aperture extending inwardly from one of the faces, only partway through the valve partition. The partition also carries a plurality of radial slits extending from the other of the faces only partway through the valve partition and intersecting the central aperture. The central aperture is of a diameter to closely fit a guidewire extending through the valve partition, while the radial slits have a length that is at least double the radius of the central aperture. The slits preferably rotate circumferentially about 5 to 60 degrees as they extend through the valve partition from one face toward the other. A lubricity enhancing additive is present, selected from the group consisting of bismuth oxychloride, polytetrafluoroethylene, titanium dioxide, graphite, polyethylene wax, polyvinylpyrrolidone, and combinations thereof.