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:
Sep. 28, 1999
Filed:
Sep. 25, 1997
Kent Backman, Holladay, UT (US);
Jerrold Foote, Salt Lake City, UT (US);
Merit Medical Systems, Inc., South Jordan, UT (US);
Abstract
A flexible catheter guidewire that comprises an elongate flexible core wire, a cylindrical, thin-walled hollow tube, and a coil spring. The core wire consists of a main section, a tapered section, and a flattened tip. The main section of the core wire has a predetermined uniform diameter. The tapered section of the core wire has a progressively reduced outer diameter. The flattened tip has a substantially rectangular cross-section. The flattened tip has a first end that is attached to the tapered section of the core wire and a second end. The flattened tip decreases in thickness from the first end of the flattened tip to the second end of the flattened tip. The hollow tube is disposed around the tapered section of core wire. The hollow tube has a substantially uniform inner diameter. A gap is formed between the inner surface of the hollow tube and the outer surface of the tapered section. A coil spring constructed of a radiopaque material is attached to the core wire and is disposed around the flattened tip.