05409454 is referenced by 186 patents and cites 9 patents.

A catheter is disclosed which is capable of cutting obstructive tissue from a vessel of a living body while shielding a portion of the wall of the vessel from being exposed to the cutting blade at the catheter's distal end. An essentially continuous outer surface at the catheter's distal end allows it to be readily advanced through an introducer sheath and through a tight stenosis in an artery. The shield at the catheter's distal end could subtend an arc from as little as 45 degrees to as large as 270 degrees depending on the extent of the vessel wall that is to be protected from being cut. A vacuum source at the catheter's proximal end can cause a suction to exist at a cutout at the catheter's distal end in order to pull obstructive tissue into the cutout as the cutting cylinder is pulled back in a retrograde direction, this suction being capable of enhancing the removal of the obstructive tissue.

Title
Apparatus for atherectomy
Application Number
656600
Publication Number
5409454
Application Date
May 2, 1994
Publication Date
April 25, 1995
Inventor
Tim A Fischell
Los Altos
CA, US
Richard L Harding
Reinholds
PA, US
David R Fischell
Fair Haven
NJ, US
James J Thompson
Reading
PA, US
Robert E Fischell
Dayton
MD, US
Agent
David I Klein
Morton J Rosenberg
Assignee
Arrow International Investment
DE, US
IPC
A61B 17/22
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