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, 2007
Filed:
Feb. 02, 2004
Mark H. Wyzgala, Bellevue, WA (US);
Eric B. Hamilton, Bothell, WA (US);
Tom J. Hiblar, Everett, WA (US);
Lixiao Wang, Long Lake, MN (US);
John J. Chen, Plymouth, MN (US);
Irina Nazarova, Woodbury, MN (US);
Nancy L. Haig, East Bethel, MN (US);
Sheng-ping Zhong, Northborough, MA (US);
Mark H. Wyzgala, Bellevue, WA (US);
Eric B. Hamilton, Bothell, WA (US);
Tom J. Hiblar, Everett, WA (US);
Lixiao Wang, Long Lake, MN (US);
John J. Chen, Plymouth, MN (US);
Irina Nazarova, Woodbury, MN (US);
Nancy L. Haig, East Bethel, MN (US);
Sheng-Ping Zhong, Northborough, MA (US);
Boston Scientific Scimed, Inc., Maple Grove, MN (US);
Abstract
An atherectomy burr has an operating diameter that is larger than the diameter of a catheter in which the burr is routed. The burr may include an expandable polymeric balloon having a partially abrasive exterior surface. The maximum expansion of the burr is controlled by an expansion mechanism. Various mechanisms are disclosed for controlling the maximum diameter of the burr thus preventing the burr from over expanding. In addition, the present invention includes systems that are pulled proximally to remove portions of a lesion located in a patient's vasculature. The system includes an ablation burr that has abrasive disposed on the proximal end. The burr may create a seal when expanded to block the ablated particulate so that an aspiration system can remove the particulate from the vasculature. Alternatively, the burr system may include a self expanding seal that is deployed out of the aspiration sheath.