The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2006
Filed:
Jun. 16, 2003
George W. Murray, Germantown, TN (US);
Michael J. Watermeier, Memphis, TN (US);
George W. Murray, Germantown, TN (US);
Michael J. Watermeier, Memphis, TN (US);
AlphaMed Inc., El Paso, TX (US);
Abstract
A punctum plug includes a distal tip, a proximal cap and a body connecting the tip to the cap. The cap has a proximal surface which remains exposed in the eye upon implantation of the punctum plug. A passage for an insertion tool extends distally in the punctum plug from an opening along the proximal surface. One or more recesses in the proximal surface collect tear fluid by surface tension, and each recess is laterally offset in its entirety from the opening and does not overlap or align with the opening. The number of recesses is indicative of the size of the punctum plug. A method of punctal occlusion involves collecting tear fluid in the one or more recesses and adhering the tear fluid in the one or more recesses by surface tension.