Journal
CIRP ANNALS-MANUFACTURING TECHNOLOGY
Volume 65, Issue 1, Pages 345-348Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cirp.2016.04.012
Keywords
Biomedical; Grinding; Mechanism
Funding
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1232683] Funding Source: National Science Foundation
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This study investigates the grinding wheel motion, force, material removal, and temperature in rotational atherectomy (RA). RA utilizes a metal-bond diamond wheel to remove plaque from arteries to treat cardiovascular diseases. As a plaque surrogate, a bone workpiece was placed in a vessel simulator and subjected to RA with a wheel rotational speed of 160,000 rpm. This grinding process was monitored by a high-speed camera, a dynamometer, and embedded thermocouples. The results show this process has a 108 Hz wheel orbital frequency, an oscillating grinding force of 0.23 N, 90% debris smaller than 31 mu m, and a 4.1 degrees C temperature rise. (C) 2016 CIRP.
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