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March 18, 1974

Electrosurgical Hazards In Laparoscopy

Author Affiliations

Wolf Medical Instruments Corp Rosemont, Ill

JAMA. 1974;227(11):1261. doi:10.1001/jama.1974.03230240019012

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To the Editor.—  The picture used in the letter illustrated types of telescope and forceps discontinued almost two years ago. In place of these items, we offer totally insulated forceps, nonconductive eyepieces, and fiberglass on all trocar sleeves. More than a year ago, we notified all known users of Wolf equipment that we would change eyepieces, insulate handles on the forceps, and put fiberglass on the trocar sleeves on all existing equipment.The laparoscope does not become electrically hot unless there is contact with the metal shaft of the instrument by the operating instrument as current is being applied. The insulating material on the forceps is the finest available for this application, and only heat from excessive electrical current put out by the misuse of high-frequency units employing the spark-gap principle will eventually cause an insulation breakdown. The connecting cables that we manufacture for use with our forceps have totally