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US 12,178,663 B2Granted
Systems, devices, and methods for monitoring a rod reduction process
AssigneeMazor Robotics Ltd.
InventorsIdo Zucker, Yonatan Ushpizin, Eliyahu Zehavi
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Abstract
Methods and systems for monitoring a rod reduction process is provided. The methods and systems include determining, based on at least one parameter, a threshold for forces exerted by a tool on a rod or a pedicle screw and receiving data corresponding to a magnitude of the forces exerted by the tool on the pedicle screw or the rod during reduction of the rod into a head of the pedicle screw. A surgical plan may be updated when the monitored magnitude meets the threshold.
Claims18
A system for monitoring a rod reduction process comprising:
- a tool configured to reduce a rod into a head of a pedicle screw;
- at least one sensor configured to measure forces or torques exerted on the pedicle screw;
- at least one processor;
- and
- at least one memory storing instructions for execution by the at least one processor that, when executed, cause the at least one processor to:
- determine, based on at least one parameter, a threshold for forces or torques exerted by the tool on the pedicle screw;
- receive, from the at least one sensor, data corresponding to a magnitude of the forces or torques exerted by the tool on the pedicle screw during reduction of the rod into the head by the tool;
- determine a screw quality based on the data received from the at least one sensor by calculating a change in one or more mechanical properties of the pedicle screw as a result of the forces or torques received by the pedicle screw;
- and
- decrease the threshold when the one or more mechanical properties meets or exceeds one or more corresponding target mechanical properties.
7 more elements
A device for monitoring a rod reduction process comprising:
- at least one processor;
- and
- at least one memory storing instructions for execution by the at least one processor that, when executed, cause the at least one processor to:
- determine a threshold, based on at least one parameter, for a force or torque exerted by a rod reduction tool during reduction of a rod into a head of each pedicle screw of one or more pedicle screws;
- receive, from at least one sensor, data corresponding to a magnitude of the force or torque exerted by the rod reduction tool on the one or more pedicle screws during reduction of the rod into the head;
- determine a screw quality based on the data received from the at least one sensor, wherein determining the screw quality includes calculating a change in one or more mechanical properties of each pedicle screw of the one or more pedicle screws as a result of the force or torque received by each pedicle screw of the one or more pedicle screws;
- and
- decrease the threshold when the one or more mechanical properties meets or exceeds one or more corresponding target mechanical properties.
5 more elements
Dependencies are inferred from the claim text.