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:
Apr. 25, 1995
Filed:
May. 13, 1994
Joaquin Villalobos, Miami, FL (US);
Cordis Corporation, Miami Lakes, FL (US);
Abstract
An intravascular catheter comprises a proximal housing carried on a tubular catheter body. The housing carries a slit, elastomeric partition valve which comprises a barrier wall positioned to block flow through the lumen of the catheter body, while permitting an elongated member such as a catheter to pass through the valve into the lumen without substantial back leakage of blood. The slit comprises a plurality of intersecting radii which rotate in spiral manner as the slit extends through the barrier wall to define a slit shaped of the intersecting radii of a first diameter on one side of the barrier wall. The slit spirals down to a lesser diameter on the other side of the barrier wall. Thus, advancement of a catheter or the like through the valve is facilitated, and back-leakage through the valve around the catheter is suppressed. Specifically, the intravascular catheter of this invention may be a catheter sheath introducer.