A glaucoma drain implanting device having a body portion including a proximal end and a distal end, a separate nozzle portion connected to the distal end of the body and including a drain delivery passageway, a plunger having a plunger tip movably disposed relative to the drain delivery passageway, and...http://www.google.co.uk/patents/US5893837?utm_source=gb-gplus-sharePatent US5893837 - Glaucoma drain implanting device and method
