2 results about "Force lines" patented technology

The present application discloses a method, device, equipment and medium for determining the guiding coordinates of a replacement body, and the present application belongs to the field of surgical navigation technology. The method includes: constructing a three-dimensional image coordinate system of the target to be replaced based on a two-dimensional image; obtaining the three-dimensional force line of the target to be replaced in the three-dimensional image coordinate system; determining the three-dimensional image of the target to be replaced in the three-dimensional image coordinate system based on the three-dimensional force line; obtaining a three-dimensional image of the replacement body, matching the three-dimensional image of the replacement body and the three-dimensional image of the target to be replaced in the three-dimensional image coordinate system according to a preset rule to obtain a three-dimensional image of the replaced target; obtaining the three-dimensional image coordinates of the replacement body in the three-dimensional image of the replaced target, and guiding the replacement of the replacement body based on the three-dimensional image coordinates. Through this technical solution, the accuracy of navigation can be improved, and the navigation cost is low, and there is no need for planning during the replacement process, which improves the replacement efficiency.

The application provides a force line measurement correction method, a readable storage medium and a measurement system. The force line measurement correction method comprises the following steps: step one: driving a measurement device installed on a predetermined object to move in a first direction, then driving the measurement device to move in a second direction to obtain a first movement track; and making the first movement track contain at least two opposite parts; step two: driving the measurement device installed on the predetermined object to move in a third direction, then driving the measurement device to move in a fourth direction to obtain a second movement track; and making the second movement track contain at least two opposite parts; wherein the first movement track and the second movement track contain perpendicular track parts; and step three: obtaining a characteristic angle of the predetermined object based on the first movement track and the second movement track. Thus, the errors of the two movement tracks can be offset. The error can be calibrated without using a rotary table.