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"A" in the accompanying figure is an adjustable arm and blade, which I have had made for the Balfour-Gosset, Mayo-Simpson and other retractors.
"D" is a rubber laparotomy sheet with a sleeve, and is similar to all other rubber laparotomy sheets. This sheet with its sleeve extending into the abdominal cavity is placed over the incision. The blades of the instrument are then passed through the sleeve and the instrument opened, exposing the cavity "E."
Advantages: This combination of retractor and rubber sheet equalizes the pressure on the incision and aids in controlling hemorrhage. It prevents contamination of the operator's gloves by the patient's skin. It protects the edges of the wound, traumatizes the tissues less than the ordinary hand retractor, lessens the danger of infection, facilitates primary union, gives better view and control of the field of operation and supplants one assistant.
31 North State Street.
Pennington JR. AN ATTACHMENT FOR THE BALFOUR-GOSSET, MAYO-SIMPSON AND OTHER ABDOMINAL RETRACTORS. JAMA. 1916;LXVI(2):114. doi:10.1001/jama.1916.25810280002019c
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