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. 01, 2014
Filed:
Jul. 14, 2004
Rebecca Lynn Engel, Kalamazoo, MI (US);
Donald R. Sandmore, Newaygo, MI (US);
David Bruce Dewindt, Grand Rapids, MI (US);
Frederick Alan Shorey, Jr., East Grand Rapids, MI (US);
David Edward Weston, Rockford, MI (US);
Rebecca Lynn Engel, Kalamazoo, MI (US);
Donald R. Sandmore, Newaygo, MI (US);
David Bruce DeWindt, Grand Rapids, MI (US);
Frederick Alan Shorey, Jr., East Grand Rapids, MI (US);
David Edward Weston, Rockford, MI (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
A cannula has a body with a proximal end and a distal end and a tip on the distal end. The tip has an outer wall defining a lumen opening at the end of the tip and extending to the proximal end of the cannula. The tip further comprises one or more ribs extending into the lumen to support the outer wall from kinking when the cannula is flexed. The outer wall has a inner surface defining the lumen and a plurality of non-circular apertures formed in the tip extending into the lumen. The apertures having a major axis and a minor axis. The major axis aligned in relation to a circumference of the outer wall to prevent puckering or buckling when the tip is bent. This alignment is also designed to support the outer wall from kinking when the tip is bent.