Title:
PUNCTUM PLUG SYSTEM INCLUDING A PUNCTUM PLUG AND PASSIVE INSERTION TOOL THEREFOR
Document Type and Number:
WIPO Patent Application WO2004112639
Kind Code:
A3
Abstract:
A punctum plug system includes a punctum plug and an insertion tool therefor. In various embodiments of the invention, the plug includes an axial bore shaped in accord with a stepped cylinder, a cylinder having a tapered end, or a combination thereof. In each embodiment, a relatively proximal portion of the tip of the insertion tool extends within a relatively larger diameter proximal portion of the plug bore but does not frictionally engage such portion, and a relatively distal portion of the insertion tool tip frictionally engages the distal portion of the plug bore. The frictional engagement between the tool tip and the plug is preferably optimized such that once the plug is inserted into a punctum for which the plug is appropriately sized, the insertion tool may be removed simply by withdrawal of the tool, without wiggling the tool or stabilizing the plug with a second instrument.
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Inventors:
PRESCOTT ANTHONY D
MENDIUS RICHARD W
MENDIUS RICHARD W
Application Number:
PCT/US2004/015759
Publication Date:
May 12, 2005
Filing Date:
May 20, 2004
Export Citation:
Assignee:
EAGLE VISION INC (US)
International Classes:
A61F9/007; A61B17/12; (IPC1-7): A61B17/00
Foreign References:
| US4915684A | 1990-04-10 | |||
| USD295445S | 1988-04-26 | |||
| US6016806A | 2000-01-25 | |||
| US6041785A | 2000-03-28 | |||
| US4959048A | 1990-09-25 |
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