Tissue fixation assembly having prepositioned fasteners and method
View Patent ↗A tissue fastener assembly delivers a fastener for deployment. The assembly includes a fastener including a first member, a second member, the first and second members having first and second ends, and a flexible connecting member fixed to each of the first and second members intermediate the first and second ends and extending between the first and second members. The first member has a longitudinal axis and a through channel along the axis. The assembly further includes a deployment wire slidingly received within the through channel of the first member that pierces into the tissue and guides the first member through the tissue, a guide structure defining a lumen that receives the fastener and deployment wire and guides the deployment wire and fastener to the tissue, and a fastener configuration structure that orientates the second member in a predetermined position relative to the first member within the lumen for dependable deployment.
1. A method comprising:
providing a fastener including a first member, a second member, the first and second members having first and second ends, and a flexible connecting member fixed to each of the first and second members intermediate the first and second ends and extending between the first and second members, the first member having a longitudinal axis and a through channel along the axis, the first member of the fastener has a lengthwise slit communicating with the through channel;
mounting the fastener onto a deployment wire with the deployment wire slidingly received by the through channel of the first member, the deployment wire being moved into the through channel by introducing the deployment wire through the lengthwise slit, the mounting step includes causing the deployment wire to be received within the through channel through the slit;
translating the fastener to within a lumen dimensioned to receive the fastener and deployment wire and which guides the deployment wire and fastener to tissue; and
orientating the second member in a predetermined position relative to the first member as the fastener is translated to within the lumen, the second member being oriented by passing the second member of the fastener adjacent a funnel-shaped wall which moves the second member to a position which is closer to the first member, the funnel-shaped wall also causing the second member to trail the first member as the fastener is translated through the lumen to the tissue.
2. The method of claim 1 , wherein the orientating step comprises positioning the second member along side the first member.
3. The method of claim 1 , wherein the orientating step comprises orientating the second member along side the first member with the connecting member between the first and second members.
4. The method of claim 1 , wherein the orientating step comprises orientating the second member along side the first member with the connecting member between the first and second members and with the second member trailing the first member.