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Punctal occluder

  • US 5,830,171 A
  • Filed: 08/12/1997
  • Issued: 11/03/1998
  • Est. Priority Date: 08/12/1997
  • Status: Expired due to Term
First Claim
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1. A punctal occluder for blocking the flow of lacrimal fluid from the surface of an eye through a lacrimal punctum;

  • said punctal occluder comprising;

    (a) a shank having a distal end for insertion into the lacrimal punctum and having a proximal end;

    (b) a proximal flange attached to said proximal end of said shank, said proximal flange being formed of a dimension to prevent complete migration of said punctal occluder into the lacrimal punctum and to prevent said punctal occluder from passing through the lacrimal punctum; and

    (c) a distal flange attached to said distal end of said shank for insertion into the lacrimal punctum;

    said distal flange including a wing portion having a collapsed position for allowing easy insertion of said distal flange into the lacrimal punctum, having an opened position for hindering unintentional removal of said distal flange from the lacrimal punctum, and having a reversed position for allowing easy removal of said distal flange from the lacrimal punctum;

    said wing portion having a first end and a second end;

    said first end of said wing portion being attached to said shank;

    said second end of said wing portion being located closer to said proximal flange than said first end of said wing portion when said wing portion is in said collapsed or opened positions;

    said second end of said wing portion being located farther from said proximal flange than said first end of said wing portion when said wing portion is in said reversed position.

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