Study on the release of copper ion and corrosion for intrauterine contraceptive device with two kinds of Cu-containing stent / 中国医疗器械杂志
Chinese Journal of Medical Instrumentation
;
(6): 222-224, 2014.
Article
in Chinese
| WPRIM
| ID: wpr-259888
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 artificially 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 microg/d), and then it became slowly and steady. The release of the copper ions from the titanium nickel shape memory alloy stents Cu-IUD were always slowly and steady in two months (0.5-5 microg/d). It obviously shows that the corrosion on copper surface of stainless steel stents Cu-IUD were more serious than titanium nickel shape memory alloy stents Cu-IUD by using 200 times microscope testing before and after soaking in formulated fluid.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Stents
/
Chemistry
/
Copper
/
Corrosion
/
Intrauterine Devices
/
Ions
Language:
Chinese
Journal:
Chinese Journal of Medical Instrumentation
Year:
2014
Type:
Article
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