CUSA
Pronunciation: KOO-sah
Also written as: CUSA — Cavitron Ultrasonic Surgical Aspirator
Cavitron Ultrasonic Surgical Aspirator, an ultrasonic device that fragments and removes tissue while preserving vital structures.
Full Definition
CUSA (Cavitron Ultrasonic Surgical Aspirator) is a specialized surgical instrument that uses ultrasonic energy to selectively fragment soft tissue while simultaneously providing irrigation and aspiration. In minimally invasive surgery, CUSA technology allows surgeons to perform precise tissue dissection while preserving important structures like blood vessels and nerves. The device is particularly useful in hepatic surgery, where it can selectively remove liver parenchyma while preserving the hepatic vasculature and bile ducts.
Usage
Usage note: Often confused with other energy devices; specify the ultrasonic fragmentation mechanism when relevant.
In Context
- "The CUSA was utilized for parenchymal transection during the laparoscopic liver resection." — Operative report
- "Hemostasis was achieved following CUSA dissection using bipolar electrocautery." — Surgical description