Extradural infusion suction system and method to drain fluid collection in the extradural space of spinal cord

摘要

A minimally invasive method of and apparatus for aspirating purulent material from an epidural abscess, or the like, in a patient includes a dual concentric catheter system having an inner infusion catheter and an outer suction catheter, the infusion catheter able to be advanced relative to and beyond the suction catheter. The catheter system is introduced into the extradural space through percutaneous entry and advanced to an epidural abscess of interest. Infusion is used to dislodge purulent material ahead of the infusion catheter toward side openings in the suction catheter where it is aspirated.