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Aim: Ultrasonic surgical aspirators are surgical instruments operated with high frequency sound waves. The brain and/or spinal cord tumors can be removed safely with minimal damaging to neurovascular structures by using tissue-selective ultrasonic aspirators. Besides its benefits to the patient, by shortening the duration of operation, it may also provide cost savings in terms of hospital management. The aim of this study is to evaluate the utility and feasibility of ultrasonic aspirator in central nervous system tumors. Material and Methods: Forty patients who apply to the Department of Neurosurgery at Duzce University Medical Faculty between March 2013 and September 2017 due to brain or spinal cord tumor and operated for a brain or spinal cord tumor were included. Ultrasonic aspirator was used during the operations, and duration of operations were recorded. Results: The total operation time was compared between the groups that their operations performed by using ultrasonic aspirator and by not using it. The mean operation time was significantly higher in the group performed operations by using ultrasonic aspirator (253.8±87.5, 195.4±48.7, p=0.014). Whereas ultrasonic aspirator usage did not change the duration of operation in patients with glioblastoma (237.8±56.3, 235.5±31.9, p=0.689). Conclusion: Technological instruments, that become a part of surgical treatment, are devices that ensure maximum efficiency with minimum damage. However, these devices require prior training on how to use them. Training of healthcare staff in the use of ultrasonic aspirator is very important. Further studies are needed following the training of the assistant healthcare staff in this subject. [ABSTRACT FROM AUTHOR]