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The copper intrauterine device for emergency contraception: an opportunity to provide the optimal emergency contraception method and transition to highly effective contraception.

Expert review of medical devices (2013-07-31)
Amna I Dermish, David K Turok
ABSTRACT

Worldwide, 40% of all pregnancies are unintended. Widespread, over-the-counter availability of oral emergency contraception (EC) has not reduced unintended pregnancy rates. The EC visit presents an opportunity to initiate a highly effective method of contraception in a population at high risk of unintended pregnancy who are actively seeking to avoid pregnancy. The copper intrauterine device (IUD), the most effective method of EC, continues to provide contraception as effective as sterilization for up to 12 years, and it should be offered as the first-line method of EC wherever possible. Increased demand for and supply of the copper IUD for EC may have an important role in reducing rates of unintended pregnancy. The EC visit should include access to the copper IUD as optimal care but should ideally include access to all highly effective methods of contraception.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
铜, powder, <425 μm, 99.5% trace metals basis
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铜, powder, 99.999% trace metals basis
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铜, nanopowder, 60-80 nm particle size (SAXS), ≥99.5% trace metals basis
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铜, nanopowder, 40-60 nm particle size (SAXS), ≥99.5% trace metals basis
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铜, foil, thickness 0.025 mm, 99.98% trace metals basis
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铜, powder, <75 μm, 99%
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铜, powder (spheroidal), 10-25 μm, 98%
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铜, turnings, purum p.a., ≥99.0%
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铜, foil, thickness 1.0 mm, 99.999% trace metals basis
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铜, powder (dendritic), <45 μm, 99.7% trace metals basis
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铜, wire, diam. 0.25 mm, 99.999% trace metals basis
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铜, foil, thickness 0.5 mm, 99.98% trace metals basis
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铜, spherical shot, −20-+30 mesh, ≥99.5% trace metals basis
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铜, bars (random sizes), ≥99.999% trace metals basis
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铜, beads, 2-8 mm, ≥99.99% trace metals basis
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铜, beads, 2-8 mm, 99.9995% trace metals basis
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铜, shot, −3-+14 mesh, 99%
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铜, mesh, 130x130mm, nominal aperture 0.2mm, thickness 0.004mm, wire diameter 0.0125mm, 118 wires/inch, open area 88%, electro-formed mesh
铜, foil, 100x100mm, thickness 0.125mm, hard, 99.95+%