摘要:
A system and method for is provided for operation of an orthopedic system. The system includes a load sensor for converting an applied pressure associated with a force load on an anatomical joint, and an ultrasonic device for creating a low-power short-range ultrasonic sensing field within proximity of the load sensing unit for assessing alignment. The system can adjust a strength and range of the ultrasonic sensing field according to position. It can report audible and visual information associated with the force load and alignment. Other embodiments are disclosed.
摘要:
A portable measurement system is provided comprising a probe, two trackers, a receiver and a pod. A user interface control captures a location and position of the probe in a three-dimensional sensing space with respect to a coordinate system of the receiver from time of flight waveform analysis. The system suppresses a ringing portion of the received ultrasonic and minimizes distortion associated with ultrasonic transducer ring-down during high-resolution position tracking of the probe and the two trackers. Media is presented according to a customized use of the probe and two trackers during an operation workflow.
摘要:
A system and method for is provided for operation of an orthopedic system. The system includes a load sensor for converting an applied pressure associated with a force load on an anatomical joint, and an ultrasonic device for creating a low-power short-range ultrasonic sensing field within proximity of the load sensing unit for assessing alignment. The system can adjust a strength and range of the ultrasonic sensing field according to position. It can report audible and visual information associated with the force load and alignment. Other embodiments are disclosed.
摘要:
A portable measurement system is provided including a probe, a user interface control and a receiver. The probe includes a plurality of ultrasonic transducers that emit ultrasonic waveforms for creating a three-dimensional sensing space. The user interface control captures a location and position of the probe in the three-dimensional sensing space. The receiver includes a plurality of microphones to capture the ultrasonic waveforms transmitted from the probe to produce captured ultrasonic waveforms and a digital signal processor that digitally samples the captured ultrasonic waveforms and tracks a relative location and movement of the probe with respect to the receiver in the three-dimensional ultrasonic sensing space from time of flight waveform analysis. Embodiments are demonstrated with respect to hip replacement surgery, but other embodiments are contemplated.
摘要:
A portable measurement system is provided comprising a probe, two trackers, a receiver and a pod. A user interface control captures a location and position of the probe in a three-dimensional sensing space with respect to a coordinate system of the receiver from time of flight waveform analysis. The system suppresses a ringing portion of the received ultrasonic and minimizes distortion associated with ultrasonic transducer ring-down during high-resolution position tracking of the probe and the two trackers. Media is presented according to a customized use of the probe and two trackers during an operation workflow.
摘要:
A system and method for is provided for operation of an orthopedic system. The system includes a load sensor for converting an applied pressure associated with a force load on an anatomical joint, and an inertial sensing device configured to measure alignment. The inertial sensing device provides alignment measurement data to measure alignment. An ultrasonic transducer, MEMs microphone, electromagnets, optical elements, metallic objects or other transducers can be configured to convert or convey a physical movement to an electrical signal and support measurement of muscular-skeletal alignment. The load sensor can be used to measure load magnitude and position of load of an applied load by the muscular-skeletal system.
摘要:
A method for determining orthopedic alignment is provided. The method includes monitoring a first and second sequence of signals transmitted from the first device to a second device, estimating a location of the first device from sensory measurements of the signals at respective sensors on the second device, calculating a set of phase differences, weighting a difference of an expected location and estimated location of the first device with the set of phase differences to produce a relative displacement, and reporting a position of an orthopedic instrument coupled to the first device based on the relative displacement.
摘要:
A configurable check and balance system is provided to assess and report orthopedic measurements, including bone cut angles, trial inserts, extension gaps and prosthetic fit. The system can be configured for cut-check, trial-check, alignment and balance, dynamic distraction, and prosthetic trial fit. The measurements can be provided with respect to an anatomical coordinate system defined according to a positioning of a sensorized mechanical plate with respect to one or more referenced anatomical landmarks. In one example, the cut-check provides measurement of varus/valgus angle and anterior/posterior slope for distal femur cuts and proximal tibia cuts. The cut-check permits a surgeon to check bone cuts made by mechanical jigs, guides or patient specific implants (PSI). It also provides distance measurements. Other embodiments are also disclosed.
摘要:
A method for determining orthopedic alignment is provided. The method includes monitoring a first and second sequence of signals transmitted from the first device to a second device, estimating a location of the first device from sensory measurements of the signals at respective sensors on the second device, calculating a set of phase differences, weighting a difference of an expected location and estimated location of the first device with the set of phase differences to produce a relative displacement, and reporting a position of an orthopedic instrument coupled to the first device based on the relative displacement.
摘要:
A system and method of touchless interaction is provided for resolving a pivot point of an object where direct placement of a sensor at the pivot point is not practical. It applies to situations where the pivot point of a rigid object is inaccessible but remains stationary, while the other end is free to move and is accessible. The system maps the object's pivot point by way of an external sensor that detects constrained motion of the rigid object within a hemispherical banded boundary. It can also detect a geometric pattern and acceleration during the constrained motion to compensate for higher order rotations about the pivot point. Other embodiments are disclosed.