US Patent 10441403 Biomedical patch and delivery system

A multi-laminar repair matrix for repairing a tissue defect may comprise a top patch and a bottom compliant patch. The bottom compliant patch may be compressed and sized to fit through a tissue defect, and expand to a substantially planar state after being implanted to the tissue defect. The top and/or bottom patch may include adhesives. A tool for implanting a patch to a tissue defect may include a shaft, a plurality of arms pivotally connected to the shaft, and a control. The control may be configured to radially expand the plurality of arms upon actuation of the control.