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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.:

US 9770259 B1

PDFFull Text
Date of Patent:
Sep. 26, 2017

Filed:

Mar. 10, 2015

Catheter with helical drive shaft and methods of manufacture

Applicant:

Covidien Lp, Mansfield, MA (US);

Inventors:

Jenny Zeroni, Plymouth, MN (US);

Cory David Sills, Plymouth, MN (US);

Victoria Schuman, Minneapolis, MN (US);

Marc D. Knutson, Robers, MN (US);

Bryan Matthew Ladd, St. Louis Park, MN (US);

Benjamin Robert Fruland, Blaine, MN (US);

Lucas Schneider, Champlin, MN (US);

Alexander J. Rice, Hutchinson, MN (US);

Assignee:

Covidien LP, Mansfield, MA (US);

Attorney:
Primary Examiner:

Barbara J Musser

Int. Cl.
CPC ...
A61B 17/3207 (2006.01); B29C 53/14 (2006.01); A61M 25/00 (2006.01); B29C 65/18 (2006.01); B29C 65/00 (2006.01); B29L 31/00 (2006.01); A61B 17/00 (2006.01); B29K 77/00 (2006.01); B29K 705/00 (2006.01);
U.S. Cl.
CPC ...
A61B 17/320783 (2013.01); A61B 17/320758 (2013.01); A61M 25/0009 (2013.01); B29C 53/14 (2013.01); B29C 65/18 (2013.01); B29C 66/532 (2013.01); A61B 2017/00526 (2013.01); B29K 2077/00 (2013.01); B29K 2705/00 (2013.01); B29L 2031/7542 (2013.01); Y10T 156/1043 (2015.01);
Abstract

Drive shafts having helical blades and methods of making are disclosed. In one method a helical auger blade is formed by twisting or sculpting a heated polymer tube which has been placed over a cylindrical drive shaft. In another method a drive shaft is placed within a helical winding and heat is applied to melt polymer which has been coated over one or both of the drive shaft and helical winding.

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