[Usage of the CUSA (cavitron ultrasonic surgical aspirator) in ... | 合法醫療器材資訊網

由YMorishita著作·1987·被引用2次—ThehandpieceoftheCUSAcontainsahollowtitaniumtipwhichvibrateslongitudinallyalongitsaxis,drivenbyamagnetostrictivetransducer.Thevibrationoccurs ...

Not infrequently, great difficulty is encountered in the operation for advanced cervical carcinoma of the uterus in dissecting cancerous tissues and controlling incidental bleeding. The CUSA is a major achievement of modern ultrasonic technology, and has been used by us to overcome such difficulties in 6 cases of total pelvic exenteration, 4 of anterior pelvic exenteration, 1 of posterior pelvic exenteration, 2 of cardinal ligament extirpation and 21 of radical hysterectomy. The handpiece of the CUSA contains a hollow titanium tip which vibrates longitudinally along its axis, driven by a magnetostrictive transducer. The vibration occurs with a frequency of 23 kHz and with an adjustable stroke of 0-300 microns. The tip of the device, placed in contact with the target tissues, destroys and emulsifies the cell membranes, which are irrigated and removed through a built-in suction tube. Since vessels larger than 0.5mm in...