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These changes reflect changes in techniques used by the surgeons and makers of surgical knives during the period. Amputation blades from the 18th century to the 1840s are generally known for their distinctive "down" curving blades. By 1870, amputation blades had become straighter, and more closely resembled the "Liston" European style.
The blade is usually flat and straight, allowing it to be run easily against a straightedge to produce straight cuts. There are many kinds of graphic arts blades; the most common around the graphic design studio is the #11 blade which is very similar to a #11 surgical blade (q.v.).
There are many different surgical specialties, some of which require specific kinds of surgical instruments to perform.. General surgery is a specialty focused on the abdomen; the thyroid gland; diseases involving skin, breasts, and various soft tissues; trauma; peripheral vascular disease; hernias; and endoscopic procedures.
-centesis : surgical puncture-tripsy : crushing or breaking up-desis : fusion of two parts into one, stabilization-ectomy : surgical removal (see List of -ectomies). The term 'resection' is also used, especially when referring to a tumor.-opsy : looking at-oscopy : viewing of, normally with a scope
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[6] In 1904, King Gillette developed a double-edged safety razor blade with a disposable blade. [6] After 10 years, Morgan Parker, an engineer, developed and patented another type of disposable scalpel, consisting of an overlapping blade locked into a metal handle that allows for easily replacing dull and used blades with fresh sterile blades. [6]
•Surgical scalpel with small blades: general purpose instrument •von Graefe's cataract knife: cutting out of the anterior chamber from the inside through the limbus •Tookes' knife (Sclero-corneal splitter) making sclerocorneal tunnels in "small incision cataract surgery (SICS)" and keratoplasty •Crescent knife (Sclero-corneal splitter)
Detail from The Extraction of the Stone of Madness, a painting by Hieronymus Bosch depicting trepanation (c. 1488–1516). Trepanning, also known as trepanation, trephination, trephining or making a burr hole (the verb trepan derives from Old French from Medieval Latin trepanum from Greek trúpanon, literally "borer, auger"), [1] [2] is a surgical intervention in which a hole is drilled or ...