Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Patent
1988-06-10
1990-02-06
Thaler, Michael H.
Surgery
Means for introducing or removing material from body for...
With means for cutting, scarifying, or vibrating tissue
606159, A61B 1732
Patent
active
048985759
ABSTRACT:
An atherectomy catheter is advanced over a guide wire in the anterograde direction to the site of an arterial stenosis. The distal end of the catheter is centered around the guide wire which has been previously advanced through the stenotic lumen. The catheter is then advanced over the guide wire with its sharpened distal end cutting through the stenosis. The atherectomy catheter can also employ rotation or vibration or an electrocautery current to enhance the catheter's cutting action. Suction applied at the catheter's proximal end is used to enhance the collection of plaque cut from the stenosis at the catheter's distal end so that the cut plaque enters a single passageway that lies between the outer surface of the guide wire and the inner surface of the cylindrical catheter.
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Fischell Robert E.
Fischell Tim A.
MedInnovations, Inc.
Thaler Michael H.
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