| http://www.w3.org/ns/prov#value | - The abrasive element's protective cover 6 is ideally shaped to provide optimal protection of vulnerable tissues, at the same time maintaining both a very small profile, for easy threading of the stenotic neural foramen 110; and atraumatic edges (e.g. rounded), in order to prevent cutting of or trauma to neural, vascular or other tissue during placement, use or removal of the device.
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