Study on the Release of Copper Ion and Corrosion for Intrauterine Contraceptive Device with Two Kinds of Cu-containing Stent
10.3969/j.issn.1671-7104.2014.03.018
- VernacularTitle:两种支架含铜宫内节育器铜离子释放及表面腐蚀的研究
- Author:
Fengping ZOU
1
;
Shuze HUANG
;
Rong JI
;
Biao DING
;
Tianping YAO
Author Information
1. 上海市医疗器械检测所
- Keywords:
Cu-IUD with stainless steel stent;
Cu-IUD with titanium nickel shape memory al oy stent;
artificial y formulated fluid;
release of copper
- From:
Chinese Journal of Medical Instrumentation
2014;(3):222-224
- CountryChina
- Language:Chinese
-
Abstract:
Two kinds of Cu-containing intrauterine contraceptive device (Cu-IUD) has been evaluated through the study on the release of copper ion and corrosion of copper surface in artificial y formulated fluid. The result showed that the copper ions were released profusely from the stainless steel stents Cu-IUD in the first week of soak(25~12 mg/d), and then it became slowly and steady. The release of the copper ions from the titanium nickel shape memory al oy stents Cu-IUD were always slowly and steady in two months(0.5~5 mg/d). It obviously shows that the corrosion on copper surface of stainless steel stents Cu-IUD were more serious than titanium nickel shape memory al oy stents Cu-IUD by using 200 times microscope testing before and after soaking in formulated fluid.
