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January 24, 1903

New Instrument.

JAMA. 1903;XL(4):246-247. doi:10.1001/jama.1903.02490040042004

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A NEW INSTRUMENT TO PROTECT THE BRAIN WHILE DOING CRANIOTOMY.  F. C. SCHAEFER, M.D.Professor of Surgery in the Post-Graduate School and Hospital; Gynecologist to St. Elizabeth's Hospital; Surgeon-in-Chief to St. Hedwig's Hospital, Etc.CHICAGO.Every surgeon who has used the Gigli saw in opening the skull is cognizant of the fact that there is great danger of sawing through the dura mater, arachnoid and pia mater into the brain tissue. The longer the cut the greater the danger, on account of the convexity of the brain surface. The saw forms the string of a bow, the latter being represented by the arched skull bone. It is practically impossible to make an incision much over three centimeters long without damag ing the brain or its coverings. Having known this accident to occur in the hands of experienced operators, I concluded to make an effort to overcome this difficulty and devised

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