A new surgical instrument for diathermic conization of the uterine cervix.

A surgical instrument for uterocervical diathermic conization has been constructed for adequate treatment of patients with mild to severe dysplasia (CIN I-III) of the uterine cervix. The purpose of the instrument is to provide a simple means of performing a differentiated conization tailored to the anatomy of the patient and the extent of the disease. With this instrument conization of the uterine cervix may be performed on an out-patient basis. It includes a mount holder member for a diathermic wire that fits into a pistol grip. The wire is held in tension by the mount so that the wire forms an angle alpha to the longitudinal axis of the mount. The wire then cuts out a cone when the mount is turned through a complete revolution. Angle alpha of the wire may be adjusted on the mount thus enabling variation in the size and shape of the cone that is excised.