Drainage device for lacrimal sac operation
A lacrimal sac and drainage tube technology, applied in the field of lacrimal sac surgical drainage devices, can solve problems such as prolonged operation time, reduced drainage effect, lacrimal canalicular obstruction, etc., and achieves the effects of shortened instrument operation time, reasonable device design, and fast and smooth drainage.
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[0009] The drainage device for lacrimal sac surgery according to the present invention has a drainage tube 11, the drainage tube 11 is connected with the insertion tube 8, a metal rod 9 is installed at one end of the insertion tube 8, a ball 10 is arranged at the end of the metal rod 9, and the drainage tube 11 A base 1 is provided, and a pipe body 3 is arranged in the middle of the base 1. The pipe body 3 has an inclination angle relative to the base 1, so that the pipe body 3 is arc-shaped. The arc radius R of the pipe body 3 is 20-22 mm, and the center of the pipe body 3 A drainage cavity 4 is set up at the site, and the top end surface of the tube body 3 is an inclined plane 6, and the angle α between the inclined plane 6 and the center line of the drainage cavity 4 is 30°-40°, and the top end of the drainage cavity 4 is elliptical. The outer wall is columnar with a high outer wall and a low outer wall, and the dimensions within the range of 360° determined by the major axi...
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