Development and Evaluation of Alloys for the Electrodes for Functional Electrical Stimulation to Appropriate for the Long Term Implantation

适合长期植入的功能性电刺激电极合金的开发和评估

基本信息

批准号：
10450251
负责人：
IGUCHI Yasutaka
金额：
$ 5.06万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B).
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

项目摘要

Alloys for the electrodes for FES(Functional Electrical Stimulation)were developped and evaluated to appropriate for thelLong term implantation. And following results were obtained.1. Development of New Alloy : A database for alloy designing was created. And ingots of some high-manganese high-nitrogen austenitic stainless steels were producted experimentaly. Relation between reduction and elongation or reduction of area of these alloys were tested. And, it was confirmed that the alloy named NAS106N(6mass%Mn, 10mass%Ni, 22mass%Cr, 2mass%Mo, 0.4mass%N)shows the most superior properties. And thin wire rope for FES electrodes were made by this alloy.2. Evaluation of FES Electrodes made by New Alloy : Magunetization curves of FES wires made by newly developed alloy NAS106N, stainless steell SUS316L and cobalt-chromium based alloy NAS604PH were measured. NAS106N and NAS604PH shows the superior non-magnetic properties than SUS316L, Fatigue life of electrodes made by NAS106N, NAS605PH, SUS316L in air and 0.9%NaCl saline solution were also measured by dual-driven rotating-bending test. NAS106N has higher fatigue life than SUS316L and NAS604PH at all experimental condition in air and high at stress conditions in saline solution. On the other hand, fatigue lives of SUS316L and NAS106 were lower than NAS604PH at low stress condition in saline solution.Accordingly, NAS106N will be promising material for FES electrodes but to prevent the fretting corrosion should be the problem to be solved.

开发并评估了用于 FES（功能性电刺激）电极的合金，以适合长期植入。得到如下结果： 1．新合金的开发：创建了合金设计数据库。并试制了一些高锰高氮奥氏体不锈钢钢锭。测试了这些合金的收缩率和伸长率或面积收缩率之间的关系。并且，经证实，名为 NAS106N（6mass%Mn、10mass%Ni、22mass%Cr、2mass%Mo、0.4mass%N）的合金表现出最优越的性能。并用该合金制作了FES电极用细钢丝绳。 2．新合金FES电极的评价：测量了新开发的合金NAS106N、不锈钢SUS316L和钴铬基合金NAS604PH制成的FES丝的磁化曲线。 NAS106N和NAS604PH表现出优于SUS316L的非磁性性能，并通过双驱动旋转弯曲试验测量了NAS106N、NAS605PH、SUS316L电极在空气和0.9%NaCl盐溶液中的疲劳寿命。 NAS106N在空气中的所有实验条件和盐溶液中的高应力条件下都比SUS316L和NAS604PH具有更高的疲劳寿命。另一方面，在盐溶液中低应力条件下，SUS316L和NAS106的疲劳寿命低于NAS604PH。因此，NAS106N将是FES电极的有前途的材料，但防止微动腐蚀应该是需要解决的问题。

项目成果

期刊论文数量（36）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

M.Watanabe, T.Narushima, T.Kinami, Y.Iguchi, N.Hoshimiya and Y.Handa: "Evaluation of Fatigue Properties of High Nitrogen High Manganese Austenitic Stainless Steel as an FES Electrode"IFESS'99PROCEEDINGS, 4th Annual Conference of the Intrnational Functinal

M.Watanabe、T.Narushima、T.Kinami、Y.Iguchi、N.Hoshimiya 和 Y.Handa：“作为 FES 电极的高氮高锰奥氏体不锈钢的疲劳性能评估”IFESS99PROCEEDINGS，第四届年会

DOI：
发表时间：
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影响因子：
0
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通讯作者：

Y.Iguchi: "Investigation of the used FES electrodes and development of new electrode for totally implanted FES system"Proceedings of the 8th Korea-Japan FES Symposium. 4-4 (1998)

Y.Iguchi：《已用FES电极的研究和全植入FES系统新电极的开发》第八届韩日FES研讨会论文集。

DOI：
发表时间：
期刊：
影响因子：
0
作者：
通讯作者：

Yasutaka Iguchi,Takayuki Narushima,Masatoshi Watanabe,Tsunetoshi Kinami,Yasunobu Handa and Nozomu Hoshimiya: "Investigation of the used FES Electrodes and Development of New Electrode for totally implanted FES System" Proceedings of the 8th Korea-Japan FE

Yasutaka Iguchi、Takayuki Narushima、Masatoshi Watanabe、Ttsunetoshi Kinami、Yasunobu Handa 和 Nozomu Hoshimiya：“使用过的 FES 电极的调查和用于完全植入 FES 系统的新电极的开发”第八届韩日 FE 会议论文集