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Lachrymal drain implant, is located and held in place by its external screw thread, and completes lachrymal path
Lachrymal drain implant, is located and held in place by its external screw thread, and completes lachrymal path
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机译:泪液植入物,通过其外螺纹定位并固定,并完成泪液路径
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摘要
The drain (9) is tubular, of any required cross section. It has an external thread (10). It is located by screwing into position, and extracted by unscrewing. It connects the surface of the eyeball (1) with the lachrymal sac (6) or the nasal channel (7). Alternatively it connects the lachrymal sac directly to the nasal channel.
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