The effect of hydron on latex urinary catheters.

Hydron, a polymeric gel which permits the passage of small molecules through its interstices, was used to coat latex urethral catheters. These catheters, as well as other catheters of varied composition, were exposed to a liquid environment from which struvite crystals could be precipitated. The deposition of struvite on a hydron coated latex catheter was significantly less than upon the other catheters.