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This instrument was designed to facilitate the work usually done by a grooved director and scalpel, especially that of enlarging wounds and making incisions where important structures lying beneath the field are not visible. It is particularly useful in enlarging peritoneal incisions, and in hernia work, where the slitting of fascia and aponeurosis necessitates separation from important structures beneath. The tapering steel dissector on the scissor-blade may be pushed beneath tense membranes, and if upward pressure is maintained and the point of the dissector slightly elevated, it will push away the soft tissues beneath, and the structure to be cut will slide on the lower blade of the scissors.
After a small incision in the peritoneum this instrucment can be used to enlarge the cut, without endangering the intestines which may be distended and lying in contact with the peritoneum.
JENNESS BF. DISSECTING SCISSORS. JAMA. 1910;LIV(25):2042. doi:10.1001/jama.1910.02550510032009
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