Abstract: A tool is configured to cut a tissue body. The tool includes a first section configured to be coupled to a transducer assembly, and a second section coupled to the first section. The first section at least partially includes a first material. The second section at least partially includes a second material that is different from the first material and denser than the first material. The second includes a cutting member that is configured to vibrate at a predetermined frequency so as to cut a tissue body an operative portion.

Abstract: A surgical fixation device is provided, including a preformed cranial mesh configured to generally conform to a predetermined averaged geometry. The cranial mesh includes a preformed flexible mesh body having opposed inner and outer surfaces, and a plurality of apertures that extend through the mesh body from the outer surface to the inner surface, each of the plurality of apertures extending along a respective central axis from the outer surface to the inner surface. The mesh body is configured as-manufactured to contact the predetermined averaged geometry at least at three spaced apart locations, such that 1) no portion of the mesh body crosses the predetermined averaged geometry in a first direction from the outer surface toward the inner surface, and 2) no location on the inner surface of the mesh body is spaced from the predetermined averaged geometry a distance greater than a select distance along the first direction.

Abstract: A tool is configured to cut a tissue body. The tool includes a first section configured to be coupled to a transducer assembly, and a second section coupled to the first section. The first section at least partially includes a first material. The second section at least partially includes a second material that is different from the first material and denser than the first material. The second includes a cutting member that is configured to vibrate at a predetermined frequency so as to cut a tissue body an operative portion.