G - Physics – 01 – B
Patent
G - Physics
01
B
340/123.2
G01B 11/10 (2006.01) B65H 63/06 (2006.01) G01B 11/02 (2006.01)
Patent
CA 1248605
SUTURE INSPECTION AND GAUGING METHOD AND SYSTEM ABSTRACT The process of detecting faults in filamentary suture materials, such as braided polyglycolic acid and other synthetic polymer suture materials, is automated to allow an operator to continuously select upper and lower limits of acceptable suture diameters as well as frayed material with the assistance, if desired, of both an audible alarm and appropriate electronic pulses responsive to deviations from specified limits. A projected silhou- ette (34), obtained by coherent illumination (22) of con- tinuously fed suture material (12), is measured as it falls upon a self-scanned array of photosensitive detector elements (32) from which an output is received sequentially from adjacent detectors and where each output level is proportional to illumination of the corresponding detector in the array. A single output signal can be used to in- dicate the presence of a fault. In addition, three individual outputs, one each for each type of suture fault, for example, oversize, undersize and frayed material, may be utilized. The system may also include signals which provide continuous suture size information and the infor- mation may be updated rapidly, such as 1000 times per second, enabling high suture feed rates.
431641
Sherwood Services Ag
Smart & Biggar
LandOfFree
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