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. 07, 1990
Filed:
Nov. 21, 1988
Wade M Johnson, Minneapolis, MN (US);
Edward A Barlow, Bloomington, MN (US);
Schneider (U.S.A.) Inc., A Pfizer Co., Plymouth, MN (US);
Abstract
The hemostasis valve gasket for use in an introducer which is integrally formed from an elastomeric material so as to exhibit resiliency and which is designed to close about small diameter objects such as a guide wire and about larger diameter objects such as a working catheter or guide catheter to prevent air or blood leakage. The gasket includes a cylindrical base with a central bore therethrough and a hollow convex domed shaped member projecting therefrom. The hollow dome shaped member terminates in a concave section. The concave section of the dome shaped member has at least one arcuate slit formed in the external surface which extends inwardly toward the hollow chamber to form a central, self-sealing passage aligned with the central bore of the cylindrical base member.