Performance analysis of a new hypersonic vitrector system.

ABSTRACT:

Purpose

To evaluate porcine vitreous flow and water flow rates in a new prototype hypersonic vitrectomy system compared to currently available pneumatic guillotine vitrectors (GVs) systems.

Methods

Two vitrectors were tested, a prototype, ultrasound-powered, hypersonic vitrector (HV) and a GV. Porcine vitreous was obtained within 12 to 24 h of sacrifice and kept at 4°C. A vial of vitreous or water was placed on a precision balance and its weight measured before and after the use of each vitrector. Test parameters included changes in aspiration levels, vitrector gauge, cut rates for GVs, % ultrasound (US) power for HVs, and port size for HVs. Data was analysed using linear regression and t-tests.

Results

There was no difference in the total average mean water flow betw

SUBMITTER: Stanga PE 

PROVIDER: S-EPMC5460816 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature