Patent ID: 9392965
Filing Date: 2016-07-19
CPC Classification: A61B

Claim Text:
1. A method of detecting a change in tension of a body surface during a medical procedure, the method comprising: determining a location of at least two fiducials in a first image, the fiducials operatively connected to a tensioning device, the tensioning device having a central opening with the at least two fiducials disposed around the central opening, and the tensioning device operatively connected to a body surface on which a medical procedure is to be performed; determining a first area of the central in the first image; determining a second area of the central opening in a second image; and determining if a difference between the first and the second area is equal to or above a predetermined value, wherein the first and second areas are determined by computing a line tangential to the fiducials on an upper portion of the tensioning device, a line tangential to the fiducials on a lower portion of the tensioning device, a line tangential to the fiducials on a right-hand side of the tensioning device and a line tangential to the fiducials on a left-hand side of the tensioning device.