Devices and methods for preventing distal embolization from the internal carotid artery using flow reversal by partial occlusion of the external carotid artery

Granted: Nov 14, 2000 Filed: Apr 7, 1999

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.