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:
Jan. 19, 1999
Filed:
Nov. 27, 1996
Jay A Lenker, Los Altos Hills, CA (US);
Rodney A White, San Pedro, CA (US);
Richard Murphy, Mountain View, CA (US);
Steve Kim, Sunnyvale, CA (US);
Cardiovascular Concepts, Inc., Portola Valley, CA (US);
Abstract
The invention provides apparatus for determining physiological characteristics of body lumens, such as the length of a blood vessel. A catheter allows measurements of the distance between a first target location and a second target location within a lumen by aligning a first marker on a first elongate member disposed within a lumen with the first target location. A second marker on a second elongate member disposed within the lumen is aligned with the second target location. The distance between the first and second markers is then directly measured from spaced-apart calibration marks along the second member, and the measured distance corresponds to the distance between the first and second target locations.