Copper bearing IUDs have proven the test of time and most popular form of IUD. In fact, there is a museum which exhibits over 300 IUD designed over two centuries collected from different countries.
Many IUDs which were used in the twentieth century are no longer used. These are safe coils, Lippes loop, Dalcon Shield, Cu-7. The modern copper IUDs however are safe, effective and inexpensive method of achieving reversible contraception in properly selected women.
Most copper medicated IUDs have an abbreviation depending on the design of the frame and exposed surface area of copper wire. For instance the most commonly used copper containing device is abbreviated as T-Cu-380A which means the shape of the device is ‘T’, and the exposed copper wire winded around the device is 380 sq.mm. In fact this copper wire is winded both in vertical limb as well as on the collar i.e. transverse bar of the plastic device.
there are about dozens
of other copper bearing IUDs still popular in different parts of the globe.
These are Cu-7, T-Cu 200, T-Cu 220C, T-Cu 220B, Cu Nova T, T-Cu 200C. These are
not popular in India and neither they are readily available in all the
provinces of India.
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