Intra-artery obstruction clearing apparatus and methods
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United States of America Patent
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May 27, 1997
Issued Date -
N/A
app pub date -
Dec 21, 1995
filing date -
Nov 9, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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. In addition, a dottering tip is disclosed for use in procedures where it is desired to open a pathway without excising material from the obstructed site. A combined augering and dottering tip is disclosed for a procedure in which material displacement followed by excising of material from within an artery is accomplished without removal of the combined augering and dottering tip until the procedure is complete.
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