초록 ▼

This invention is a pre-formed intrastromal corneal insert. It is made of a physiologically compatible polymer and may be used to adjust corneal curvature and thereby correct vision abnormalities. The insert or segment may also be used to deliver therapeutic or diagnostic agents to the interior of t

This invention is a pre-formed intrastromal corneal insert. It is made of a physiologically compatible polymer and may be used to adjust corneal curvature and thereby correct vision abnormalities. The insert or segment may also be used to deliver therapeutic or diagnostic agents to the interior of the cornea or of the eye. The insert subtends only a portion of a ring, or "arc", encircling the anterior cornea outside of the cornea's field of view. The invention also includes a procedure for inserting the device into the cornea.

대표청구항 ▼

This invention is a pre-formed intrastromal corneal insert. It is made of a physiologically compatible polymer and may be used to adjust corneal curvature and thereby correct vision abnormalities. The insert or segment may also be used to deliver therapeutic or diagnostic agents to the interior of t

This invention is a pre-formed intrastromal corneal insert. It is made of a physiologically compatible polymer and may be used to adjust corneal curvature and thereby correct vision abnormalities. The insert or segment may also be used to deliver therapeutic or diagnostic agents to the interior of the cornea or of the eye. The insert subtends only a portion of a ring, or "arc", encircling the anterior cornea outside of the cornea's field of view. The invention also includes a procedure for inserting the device into the cornea. edical device comprising: a frame being of a generally polygonal shape with a closed circumference and an aperture therethrough, said closed circumference having a plurality of sides and a series of interconnecting bends, and a covering attached to said frame and extending across the aperture thereof; wherein said frame is resiliently foldable across a diagonal axis of said aperture of said frame into a self-expanding stent configuration in which the covering forms a curved configuration adapted to trap fluid flowing in a single direction within a vessel. 19. The device of claim 18 wherein said covering is adapted to restrict fluid flow within the aperture of the frame. 20. The device of claim 18 wherein said covering includes an opening therethrough. 21. The device of claim 18 wherein said covering comprises small intestinal submucosa.