Patent ID: 7198799
Filing Date: 2007-04-03
Classification: A61B,A61L

Abstract:
1. A biologically resorbable nerve guide rail comprising: (a) a microporous guide tube of polymers of hydroxycarboxylic acids in the form of a tubular membrane, having pores sized between 0.1 and 50 microns and an inner tube diameter from 0.5 to 10 mm, the porosity permitting a metabolism through the tube wall, but preventing the passage of cells, (b) monofilaments of polymers of hydroxycarboxylic acids located in the guide tube, wherein the monofilaments are in the form of solid filaments having a diameter from 30 to 200 microns, and wherein at least one surface, selected from the group consisting of an inner surface of the tube and a surface of a monofilament, has an orientation aid in the form of longitudinal profiling, and wherein the resorbability of the guide rail decreases over its length and at a proximal end the guide rail is more rapidly resorbable than at a distal end.