METHOD FOR INSPECTING PATTERN WIDTH OF STENT SURFACE

摘要

PROBLEM TO BE SOLVED: To efficiently inspect the finishing state of the pattern width on a stent surface. SOLUTION: This method for inspecting the pattern width on the surface of the cylindrical stent 1 manufactured by laser beam processing consists in rotatably supporting the stent 1 in a horizontal state, disposing a CCD camera 2 connected to a computer 5 via an image processor 4 orthogonally with the axis of the stent 1, capturing the state of the stent surface as a line-shaped image by rotating the stent 1 at a prescribed angle and deciding the normal/ defective condition of the pattern width by comparing the captured image with the previously inputted reference data of the surface pattern.