Robotic Assisted Cannulation of Occluded Retinal Veins.

ABSTRACT:

Purpose

To develop a methodology for cannulating porcine retinal venules using a robotic assistive arm after inducing a retinal vein occlusion using the photosensitizer rose bengal.

Methodology

Retinal vein occlusions proximal to the first vascular branch point were induced following intravenous injection of rose bengal by exposure to 532nm laser light delivered by slit-lamp or endolaser probe. Retinal veins were cannulated by positioning a glass catheter tip using a robotically controlled micromanipulator above venules with an outer diameter of 80μm or more and performing a preset piercing maneuver, controlled robotically. The ability of a balanced salt (BSS) solution to remove an occlusion by repeat distention of the retinal vein was also assessed.

Results

Cannulati

SUBMITTER: de Smet MD 

PROVIDER: S-EPMC5046264 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature