Method of fastening soft tissue to bone with a stacked plate suture anchor

摘要

A surgical anchor comprises a plurality of plates configured into a stack with successive plates within the stack being vertically arrayed with respect to the stack. The stack has an undeployed configuration, and a deployed configuration. In the deployed configuration one or more of the plates is positioned outwardly more laterally with respect to the stack than in the undeployed configuration so as to retain the anchor in a bone hole. A biasing member between the plates in the stack biases the one or more plates toward the deployed configuration. The biasing member can provide a torsional force to induce the plates to rotate and fan outwardly.

主权项

1. A method of fastening soft tissue to a bone, the method comprising steps of:
preparing a bone hole in the bone for receiving a suture anchor having a length of suture connected thereto, the suture anchor comprising a plurality of plates configured into a stack, the stack having an undeployed configuration, and a deployed configuration in which one or more of the plates is positioned outwardly more laterally with respect to the stack than in the undeployed configuration, and a biasing member between the plates in the stack biasing the one or more plates toward the deployed configuration; holding the suture anchor in the undeployed configuration via a retention member passed through the plates; positioning the suture anchor in the bone hole while the suture anchor is in the undeployed configuration; connecting the suture to the soft tissue; tensioning the suture to draw the soft tissue toward the bone; and deploying the anchor so that the biasing member moves the plates into the deployed configuration to retain the anchor in the bone hole.