A punctum dilating and plug inserting instrument includes a cylindrical body with a first end being a plug inserting tip, and a second end being a punctum dilating tip. An elongated button is arranged longitudinally along the body. The button includes a fixed end and a slidable end; the fixed end...http://www.google.fr/patents/US5741292?utm_source=gb-gplus-shareBrevet US5741292 - Punctum dilating and plug inserting instrument with push-button plug release
Punctum dilating and plug inserting instrument with push-button plug release ...