Lacrimal duct tube
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United States of America Patent
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Mar 13, 2018
Issued Date -
N/A
app pub date -
Jul 31, 2013
filing date -
Aug 31, 2012
priority date (Note) -
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Abstract
The present invention provides a lacrimal duct tube that can be preferably used for the treatment of lacrimal duct obstruction, in particular, sheath guided endoscopic probing having been frequently performed in recent years, the lacrimal duct tube being excellent in passage through a lesion in the lacrimal duct, operability in the lacrimal duct, and manipulation of the endoscope inserted into the lumen of the tube, and providing a sufficient viewing field of the endoscope. The present invention relates to a lacrimal duct tube, including: a pair of tubular members that each has an opening at one end and a hole in a side wall communicating with a lumen; and a connection member that connects other ends of the tubular members, wherein the tubular members each include a plurality of resin portions different in Shore hardness, at least one of the resin portions is positioned between the opening and the hole and forms a lumen wall of the tubular member, and the lumen wall has a Shore hardness of 57D or more.
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