About this Abstract |
Meeting |
2nd International Conference on Technological Innovations in Metals Engineering (TIME)
|
Symposium
|
Technological Innovations in Metals Engineering (TIME)
|
Presentation Title |
Characterization of Corrosion in Stainless Steel Percutaneous Leads Used in Neuromodulation Applications |
Author(s) |
Janet L. Gbur, John Lewandowski |
On-Site Speaker (Planned) |
Janet L. Gbur |
Abstract Scope |
Stainless steel strands are used as conductors in percutaneous leads common in neuromodulation treatment modalities. Chemical and/or mechanical degradation of the strands which are housed within polymer sheaths are infrequent, particularly exterior to the skin. Critical analysis of any functional irregularity is important to the overall treatment as well as for patient safety. This work investigates the abnormal appearance of an exterior portion of a percutaneous lead having intermittent electrical function. The sectioned lead was evaluated with various microscopy and spectroscopy techniques including destructive and nondestructive approaches. The abnormal lead appearance was attributed to pitting corrosion which weakened the strand and led to impeded function. A year-long series of environmental tests were performed on similar, non-implanted leads to establish potential sources of causation including solutions common to normal hygiene routines and clinical protocols. Pitting corrosion was observed with some soaps and characterized with optical, scanning electron, and x-ray microscopy techniques. |
Proceedings Inclusion? |
Undecided |