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  • Devices intended for obstructing or tightly closing an external body passage. These devices may consist of a dense mass of material provided with a guiding channel and elements for urging the plug into the passage. The plugs are usually made of plastic (e.g., polyurethane, silicone) because of its biocompatibility, resiliency, elasticity, and durability to resist wear and tear. Occlusion plugs may have different shapes and sizes. Ear and lacrimal punctum occlusion plugs are also available.
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