Trephine
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A trephine is a surgical instrument with a cylindrical blade. It can be of one of several dimensions and designs depending on what it is meant to be used for. A trephine may be specially designed for
A trephine with a center pin can be seen on the left.
Dr. John Clarke trepanning a skull, ca. 1664, in one of the earliest American portraits. Clarke has a trephine in his right hand. The painting is in Harvard Medical School.
Jose Barraquer
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José Ignacio Barraquer Moner was a Spanish ophthalmologist and inventor born in Barcelona who did most of his life's work in Bogotá, Colombia.
Clínica Barraquer in Bogotá, Colombia
IBA Graf 2