Tissue anchor
AssigneeUniv. College Dublin, National Univ. of Ireland
InventorsNicky Bertollo, Seamus Morris, Eoin O'Cearbhaill
Life of this patent
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Abstract
The present invention provides a tissue anchor and a system and method employing same, the anchors including a body having a first section and a second section reversibly engagable with one another, each section including a plurality of barbs in the form of microneedles projecting from the underside therefore, the barbs on one section being inclined towards barbs on the other section, such that tissue may be captured and deformed between the barbs through displacement of the first section relative to the second section in order to achieve robust retention of the tissue anchor at a deployment site.
Claims20
A tissue anchor comprising a body having a first section and a second section displaceable in a first “X” direction relative to one another to translate the tissue anchor between an undeployed state and a deployed state;
- at least one first protrusion projecting from the first section and at least one second protrusion projecting from the second section, one of the at least one first protrusion and the at least one second protrusion being inclined towards the other of the at least one first protrusion and the at least one second protrusion;
- and wherein the at least one first protrusion on the first section and the at least one second protrusion of the second section overlap in the first “X” direction and a second “Z” direction substantially A perpendicular to the first “X” direction when the anchor is in the undeployed and deployed state.
A method of securing a tissue anchor to tissue, the method comprising the steps of inserting at least one first protrusion projecting from a first section of a body of the anchor and at least one second protrusion projecting from a second section of the body into the tissue;
- displacing in a first “X” direction the first section relative to the second section to translate the tissue anchor from an undeployed state to a deployed state, wherein the at least one first protrusion on the first section and the at least one second protrusion on the second section overlap in the first “X” direction and a second “Z” direction substantially perpendicular to the first “X” direction when the body is in the undeployed and deployed state;
- such as to effect localised deformation of the tissue surrounding the at least one first protrusion and the at least one second protrusions when the body is in the deployed state.
Dependencies are inferred from the claim text.