Ambroise Paré (1517-1590), a barber-surgeon who often operated on the battlefield, employed trepanning instruments that had braces or drill stocks to which saws were attached with binding screws. In his treatises on surgery, Paré also described “trepanes or round saws for cutting out a circular piece of bone with a sharp-pointed nail in the centre projecting beyond the teeth,” and another trepan with a transverse handle. The mechanical cogwheel trepan was invented by Matthia Narvatio in Antwerp in 1575. The cogwheel was connected to a second wheel which rotated a circular saw that cut through the bone. This instrument was used much in the same way as a modern hand drill – held in one hand and cranked with the other. But it was extremely heavy and cumbersome, and therefore did not become popular among the surgeons of the time.
A further and highly significant advance in trepanning instruments came with the invention of a central screw. In the mid-sixteenth century, a trepan consisting of a head brace and drill stock to which a circular saw or sharp perforator was widely available. In 1632, Joannis Scultetus, who was one of the most accomplished seventeenth century surgeons, described an instrument called a trioploides, which he used for raising depressed skull fractures. This was a three-legged instrument with a long centrally-placed screw, similar to the “crown” trepan in the image Fig. 42. In his book Armamentarium chirurgicum, which was published in 1655, Scultetus provided beautiful illustrations of various types of cranial surgery, including trepanation, as well as the instruments used to perform them (below). He also described what he called “male” and “female” instruments, the former with, and the latter without, central screws, and explained how together they were used for trepanning:
Kicked Out of Heaven Vol. II
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The Untold History of The White Races cir. 700 – 1700 a.d.
666 pages 197 pages
- ISBN-10: 1943820058
- ISBN-13: 978-1943820054
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Kicked Out Of Heaven Vol. II: The Untold History of The White Races cir. 700-1700 a.d. is a 3 volume series that will be released one by one. This book details everything about European society and mentality. In this edition you will find these facts: Alcoholism & The Blue Devils, Insanity & Lead Poisoning, Ergot (LSD) Hallucinations, The Sweating Sickness & Leprosy, The Tobacco Enema & Leeches, The Defloration Mania, The Dancing Mania, The Black Death, The Gravediggers & Body Snatchers, Jews Poisoning the Wells, Millions of Deaths, Folklore & Superstition, Magic Mirrors & Crystal Balls, Witches Dancing in Baby Blood, Pants Made of Human Skin, Necromancy & Ghost Armies, Attacks from The Undead, Lycanthropy & Were-Wolves, Multiple Cases of Vampires, Who is Satan, Lucifer & The Devil!
The Independent: Meth addict has holes drilled in head for brain implants to stop him taking drugs.