Disposable intra-arterial augering and dottering instruments for use in patients in clearing pathways at obstructed or nearly obstructed arterial sites are disclosed. A number of augering tips used on the instruments are disclosed along with a method for releasibly affixing augering tips to the instruments....http://www.google.es/patents/US5643297?utm_source=gb-gplus-sharePatente US5643297 - Intra-artery obstruction clearing apparatus and methods
Intra-artery obstruction clearing apparatus and methods
