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For the purposes of blunt dissection, no surgical instrument is so universally used as the grooved "director" devised by Professor Kocher of Berne, and yet it does not fully meet all the requirements of the general surgeon.
The writer does not claim perfection for this modified instrument, but believes that the alterations from the original have added very largely to its usefulness.
These changes consist in having the entire instrument made from one piece of metal (the handle portion being concave on two sides to decrease weight) for it is obvious that a solid instrument will not make as many visits to the repair shop as the one with a soldered hollow handle.
The blade has been made longer, more curved and much thinner than the ordinary director to facilitate working around glandular structures, in vascular regions, particularly in operations for the enucleation of tubercular and carcinomatous glands, and in
LARNED ER. A MODIFIED DIRECTOR. JAMA. 1896;XXVII(21):1119. doi:10.1001/jama.1896.02430990027024
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