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Diamond knives are used in eye surgery, specifically in refractive surgery.. In particular they are the main tool, together with the microscope, for the radial keratotomy invented by Svyatoslav Fyodorov to correct myopia and for the Mini Asymmetric Radial Keratotomy (M.A.R.K.), invented by Marco Abbondanza to correct astigmatism and cure the first and second stages of keratoconus.
Humberto Fernández-Morán Villalobos (18 February 1924 – 17 March 1999) [1] was a Venezuela research scientist born in Maracaibo, Zulia, Venezuela, known for inventing the diamond knife or scalpel, significantly advancing the development of electromagnetic lenses for electron microscopy based on superconducting technology, and many other scientific contributions.
A diamond knife blade used for cutting ultrathin sections (typically 70 to 350 nm) for transmission electron microscopy The cutting edge of a disposable blade for a microtome under a microscope The selection of microtome knife blade profile depends upon the material and preparation of the samples, as well as the final sample requirements (e.g ...
Diamond stones are typically coarser than other sharpeners, and are used for the initial stages of knife sharpening. For a knife that has been previously sharpened, this initial diamond stone stage can often be skipped and the re-sharpening begun with a ceramic stone. Over time diamond stones will wear out and need to be replaced.
Ultra-thin sections of specimens are cut using a specialized instrument called an "ultramicrotome". The ultramicrotome is fitted with either a diamond knife, for most biological ultra-thin sectioning, or a glass knife, often used for initial cuts. There are numerous other pieces of equipment involved in the ultramicrotomy process.
Normally, tens or hundreds of diamond gang saw blades are used together to saw raw stone blocks. A diamond band saw blade is a flexible closed steel band with diamonds fixed (often by electroplating) on one edge of the band. Diamond blades designed for specific uses include marble, granite, concrete, asphalt, masonry, and gem-cutting blades.
Lozenge; diamond shape, 1 ⁄ 2 by 1 ⁄ 2 by 1 ⁄ 8 inch (10 mm × 10 mm × 3 mm) Fermière; cut lengthwise and then sliced to desired thickness 1 ⁄ 8 – 1 ⁄ 2 inch (3–10 mm) Rondelle; cylindrical vegetables cut to discs of desired thickness 1 ⁄ 8 – 1 ⁄ 2 inch (3–10 mm)
Sabatier is the maker's mark used by several kitchen knife manufacturers—by itself it is not a registered brand name. The name Sabatier is considered to imply a high-quality knife produced by one of a number of manufacturers in the Thiers region of France using a full forging process; the knives of some of these manufacturers are highly regarded.
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