Abstract
Functional neuromuscular stimulation (FNS) is often limited by electrode malfunctions such as corrosion and breakage, particularly for intramuscular and epimysial type electrodes. As a result, the electrochemical charge injection characteristics and corrosion responses of single strand 316LVM stainless steel and MP35N nickel-cobalt alloy electrodes were evaluatedin vitro. For charge balance, capacitor coupled monophasic protocols with varying charge injections were employed. Electrodes were evaluated with either positive-first or negative-first pulses, 60 Hz, 100 μsec pulse duration, and stimulation periods from 100 to 240 hours. Charge injection densities ranged from 20 to 80 μC/cm2. For both anodic-first and cathodic-first pulsing, the potential transients for the MP35N electrodes were more extreme than for the 316LVM electrodes over the test period, and increased corrosion was apparent on the MP35N electrodes from both optical and scanning electron microscopy. Therefore, 316LVM, but not MP35N, may be suitable for FNS applications with charge injection densities less than 40 μC/cm2.
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Brindley, G.S.; Polkey, C.E.; Rushton, D.N. Sacral anterior root stimulators for bladder control in paraplegia. Paraplegia 20:365–381; 1982.
Brummer, S.B.; McHardy, J. Functional electrical stimulation: applications in neuroprosthetics. In: Hambrecht, F.T.; Reswick, J.B., eds. New York: Marcel Dekker, Inc., 1977.
Brummer, S.B.; McHardy, J.; Turner, M.J. Electrical stimulation with Pt electrodes: Trace analysis for dissolved platinum and other dissolved electrochemical products. Brain Behav. Evol. 14:10–22; 1977.
Castle, J.E.; Qui, J.H. The application of ICP-MS and XPS to studies of ion selectivity during passivation of stainless steels. J. Electrochem. Soc. 137:201–206; 1990.
Devine, T.M.; Wulff, J. The comparative crevice corrosion resistance of Co−Cr base surgical implant alloys. J. Electrochem. Soc. 123:1433–1437; 1976.
Donaldson, N.N.; Donaldson, P.E.K. When are actively balanced biphasic ‘Lilly’ stimulating pulses necessary in a neurological prothesis? I historical background; Pt resting potential; Q studies. Med. & Biol. Eng. Comput. 24:41–49; 1986.
Gamble, J.L. Chemical anatomy physiology and pathology of extracellular fluid. Massachusetts: Harvard University Press; 1954.
Glenn, W.W.L.; Phelps, M.L. Diaphragm pacing by electrical stimulation of the phrenic nerve. Neurosurg. 17:974–984; 1985.
Guyton, A.C. Transport of oxygen and carbon dioxide in the blood and body fluids. In: Textbook of medical physiology. 8th Edition, Philadelphia: W.B. Saunders Co., 1991: pp. 433–443.
Handa, Y.; Hoshimiya, A.; Iguchi, I.; Oda, T. Development of percutaneous intramuscular electrode for multichannel FES system. IEEE Trans. Biomed. Eng. 36:705–710; 1989.
Kiwerski, J.; Weiss, M.; Pasniczek, R. Electro-stimulation of the median nerve in tetraplegics by means of implanted stimulators. Paraplegia 21:322–326; 1983.
Lan, N.L.; Daroux, M.; Mortimer, J.T. Pitting corrosion of high strength alloy stimulation electrodes under dynamic conditions. J. Electrochem. Soc. 136:947–954; 1989.
Lobe, G.E. Neural prosthetic interfaces with the nervous system. Trans. Neurosci. 12:195–201; 1989.
Man, H.C.; Gabe, D.R. A study of pitting potentials for some austentic stainless steels using a potentiodynamic technique. Corrosion Science 21:713–721; 1981.
McFadden, J.T. Metallurgical principles in neurosurgery. 31:373–385; 1969.
McHardy, J.; Geller, D.; Brummer, S.B. An approach to corrosion control during electrical stimulation. Ann. Biomed. Engin. 5:144–149; 1977.
McHardy, J.; Robblee, L.S.; Marston, J.M.; Brummer, S.B. Electrical stimulation with Pt electrodes. IV. Factors influencing Pt dissolution in inorganic saline. Biomat. 1: 129–134; 1980.
Mortimer, J.T.; Motor Prostheses. In Brookhart, J.M.: Mountcastle, V.B. eds. Handbook of physiology, Section 1: The nervous system, Vol 2. Maryland: American Physiological Society; 1981: pp 155–187.
Mortimer, J.T.; Kicher, T.P.; Daroux, M. Electrodes for functional neuromuscular stimulation. Fourth Progress Report, NIH Neural Prosthesis Program Contract Number N01-NS-7-2396 Applied Neural Control Laboratory, Biomedical Engineering Department, Case Western Reserve University, Cleveland, Ohio, pp. 1–30.
Peckner, D.; Bernstein, I.M. In Crawford, H.B.; Gatewood, B. eds. Handbook of Stainless Steel. New York: McGraw-Hill Book Co., 1977.
Pessall, N.; Lui, C. Determination of critical pitting potentials of stainless steel in aqueous chloride environments. Electrochimica Acta 16:x-2003; 1987.
Riedy, L; Walter, J.; Cogan, S.; Nguyen, N.; Zaszczurynski, P. Reduced corrosion of pulsed 316LVM stainless steel electrodes by short time constant discharge. Proc. 14th Ann. Conf. IEEE Engin. Med. Biol. Soc. 14:2374–2376; 1992.
Robblee, L.S.; McHardy, J.; Marstin, J.M.; Brummer, S.M. Electrical stimulation with Pt electrodes. V. The effect of protein on Pt dissolution. Biomaterials. 1:135–139; 1980.
Robblee, L.S.; Rose, T.L. In Neural prostheses: fundamental studies’ electrochemical guidelines for selection of protocols and electrode materials for neural stimulation., eds. Agnew, W.F.; McCreery D.B. Prentice Hall, New Jersey pp. 25–66; 1990.
Rose, T.L.; Robblee, L.S. Electrical stimulation with Pt electrodes. VIII. Electrochemically safe charge injection limits with 0.2 ms Pulses. IEEE Trans. Biomed. Eng. 37: 1118–1120; 1990.
Sawan, M.; Duval, F.; Li, J.S.; Hassouna, M.; Elhilali, M.M. A new bladder stimulator-hand held controller and miniaturized implant: preliminary results in dogs. Biomed. Instr. Tech. 143–149; 1993.
Smith, B.T.; Mulcahey, M.J.; Triolo, R.J.; Betz, R.R. The application of a modified neuroprosthetic hand system in a child with a C7 spinal cord injury. A case report. Paraplegia 30:598–606; 1992.
Smith, B.T.; Peckham, P.H.; Keith, M.W.; Roscoe, D.D. An externally powered, multichannel, implantable stimulator for versatile control of paralyzed muscle. IEEE Trans. Biomed. Eng. 34:499–508; 1987.
Sury, P. The comparative crevice corrosion resistance of Co−Cr base surgical implant alloys. J. Electrochem. Soc. 124:869–878; 1977.
Walter, J.; Cogan, S.; Nguyen, N.; Robinson, C.; Dunn, B.; Zaszczurynski, P.; Wheeler, J. Evaluation of a 316LVM “woven eye” electrode for direct bladder stimulation. Proc. Ann. Conf. IEEE Eng. Med. Biol. Soc. 13:1853–1854; 1991.
Walter, J.S.; Wheeler, J.S.; Cogan, S.; Plishka, M.; Riedy, L.W.; Wurster, R.D. Evaluation of direct bladder stimulation with stainless steel “woven eye” electrodes. J. Urol. 1993 (In press).
Williams, R.L.; Brown, S.A.; Merritt, K. Electrochemical studies on the influence of proteins on the corrosion of implant alloys. Biomat. 9:181–186; 1988.
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Riedy, L.W., Walter, J.S. Comparison of electrical transients and corrosion responses of pulsed MP35N and 316LVM electrodes. Ann Biomed Eng 22, 202–211 (1994). https://doi.org/10.1007/BF02390378
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DOI: https://doi.org/10.1007/BF02390378