Spine tool for measuring vertebral load and position of load

摘要

A spine measurement system includes at least one spinal instrument and a remote system. The spinal instrument comprises a handle, a shaft, an accelerometer, a sensored head, and an electronic assembly. The sensored head includes one or more sensors that are operatively coupled to the electronic assembly. The sensored head can be inserted between vertebra and report vertebral conditions such as force, pressure, orientation and edge loading. A GUI of remote system can report position via the accelerometer to show spinal instrument relative to vertebral bodies as the instrument is placed in the inter-vertebral space. The system can report optimal prosthetic size and placement in view of the sensed load and location parameters including optional orientation, rotation and insertion angle along a determined insert trajectory.

主权项

1. An insertion measurement system for the muscular-skeletal system comprising:
a measurement instrument including:
a shaft;a handle coupled to a proximal end of the shaft;a sensored head coupled to a distal end of the shaft configured for insertion into the muscular-skeletal system where the sensored head includes a plurality of load sensors configured to measure load and position of load applied by the muscular-skeletal system onto the sensored head;electronic circuitry operatively coupled to the sensored head located in proximity to the handle, anda position sensor and alignment circuitry configured to measure at least one of the position, orientation, or trajectory of the sensored head and the measurement instrument during load sensing.