Abstract: Systems and methods are described to determine joint center of rotation during a procedure. Joint center measurements may be useful to determine other clinically relevant measurements and/or to assist with replacement surgery.

Abstract: Systems and methods are described to determine joint center of rotation during a procedure. Joint center measurements may be useful to determine other clinically relevant measurements and/or to assist with replacement surgery.

Abstract: There is provided a tracing platform configured to rigidly attach to an anatomy of a patient that has at least one surface configured to provide a defined path (represented by path definition data) for tracing by a surgical instrument. An intra-operative computing unit receives pose data for the instrument when tracing the path and calculates a location of the defined path using the pose data and the path definition data. A change in location may be determined from pose data of different traces. Tracing the defined path generates a plurality of pose data which may increase accuracy of the location calculations. Redundant trace data may be received to eliminate bias. A geometric feature (e.g. V-groove), shape and/or magnetic properties of the platform may assist with tracing. The platform may rigidly attach to a bone using at least one of spikes, a bone screw, a cerclage wire, and a bone clamp.

Abstract: There is provided a surgical instrument for navigated surgeries and systems and methods using such a surgical instrument. The surgical tool comprises a tip; a tool interface, separate from the tip; and an optically trackable target. The tip is configured to probe positions in a space and identify the positions using optical information from the optically trackable target. The tool interface is configured to mate with a surgical tool such that the optical trackable target then provides optical information with which to determine positional information for the surgical tool in the space. In one example, the system provides navigational information during surgery using the surgical instrument, namely, a single integrated tracker instrument with two or more mechanical interfaces for coupling the tracker instrument with anatomical features and/or surgical tools.

Abstract: A system and method perform a registration such as for a surgical navigation system by fitting a plurality of anatomical points as received to a digital model and developing a map having a corresponding confidence level indicating a degree of certainty. As additional anatomical points are received, they are continually matched to the digital model and the confidence level continually updated. The confidence level is output in any form, such as a score, a color code, or other metric. The output may include a graphical representation e.g. overlaid on an image from the digital model. The output may be a heat map overlaid on the image. The heat map may indicate an overall confidence level, and/or may indicate a plurality of confidence levels at various locations on the digital model. The overlay may provide an indication as to one or more suggested probe points to increase the level.

Abstract: There is provided a surgical instrument for navigated surgeries and systems and methods using such a surgical instrument. The surgical tool comprises a tip; a tool interface, separate from the tip; and an optically trackable target. The tip is configured to probe positions in a space and identify the positions using optical information from the optically trackable target. The tool interface is configured to mate with a surgical tool such that the optical trackable target then provides optical information with which to determine positional information for the surgical tool in the space. In one example, the system provides navigational information during surgery using the surgical instrument, namely, a single integrated tracker instrument with two or more mechanical interfaces for coupling the tracker instrument with anatomical features and/or surgical tools.

Abstract: There is provided a surgical instrument for navigated surgeries and systems and methods using such a surgical instrument. The surgical tool comprises a tip; a tool interface, separate from the tip; and an optically trackable target. The tip is configured to probe positions in a space and identify the positions using optical information from the optically trackable target. The tool interface is configured to mate with a surgical tool such that the optical trackable target then provides optical information with which to determine positional information for the surgical tool in the space. In one example, the system provides navigational information during surgery using the surgical instrument, namely, a single integrated tracker instrument with two or more mechanical interfaces for coupling the tracker instrument with anatomical features and/or surgical tools.

Abstract: Systems and methods are described to determine joint center of rotation during a procedure. Joint center measurements may be useful to determine other clinically relevant measurements and/or to assist with replacement surgery.

Abstract: Systems and methods are described herein to calculate implant orientation measurements of an acetabular cup implant in hip replacement surgery, such surgery performed with minimally invasive incisions. Surgeons may obtain real-time updated implant orientation measurements that compensate for pelvic tilt of a patient, such tilt measured pre-operatively. Implant orientation measurements may be measured from the patient's anterior pelvic plane, supine coronal plane, standing coronal plane or any other reference plane that the surgeon may find useful. Also disclosed are systems, methods and devices to measure hip center of rotation and provide leg length and offset measurements in hip replacement surgery.

Abstract: A system and method perform a registration such as for a surgical navigation system by fitting a plurality of anatomical points as received to a digital model and developing a map having a corresponding confidence level indicating a degree of certainty. As additional anatomical points are received, they are continually matched to the digital model and the confidence level continually updated. The confidence level is output in any form, such as a score, a color code, or other metric. The output may include a graphical representation e.g. overlaid on an image from the digital model. The output may be a heat map overlaid on the image. The heat map may indicate an overall confidence level, and/or may indicate a plurality of confidence levels at various locations on the digital model. The overlay may provide an indication as to one or more suggested probe points to increase the level.

Abstract: There is provided a surgical instrument for navigated surgeries and systems and methods using such a surgical instrument. The surgical tool comprises a tip; a tool interface, separate from the tip; and an optically trackable target. The tip is configured to probe positions in a space and identify the positions using optical information from the optically trackable target. The tool interface is configured to mate with a surgical tool such that the optical trackable target then provides optical information with which to determine positional information for the surgical tool in the space. In one example, the system provides navigational information during surgery using the surgical instrument, namely, a single integrated tracker instrument with two or more mechanical interfaces for coupling the tracker instrument with anatomical features and/or surgical tools.

Abstract: There is provided a tracing platform configured to rigidly attach to an anatomy of a patient that has at least one surface configured to provide a defined path (represented by path definition data) for tracing by a surgical instrument. An intra-operative computing unit receives pose data for the instrument when tracing the path and calculates a location of the defined path using the pose data and the path definition data. A change in location may be determined from pose data of different traces. Tracing the defined path generates a plurality of pose data which may increase accuracy of the location calculations. Redundant trace data may be received to eliminate bias. A geometric feature (e.g. V-groove), shape and/or magnetic properties of the platform may assist with tracing. The platform may rigidly attach to a bone using at least one of spikes, a bone screw, a cerclage wire, and a bone clamp.

Abstract: Systems and methods are described herein to calculate implant orientation measurements of an acetabular cup implant in hip replacement surgery, such surgery performed with minimally invasive incisions. Surgeons may obtain real-time updated implant orientation measurements that compensate for pelvic tilt of a patient, such tilt measured pre-operatively. Implant orientation measurements may be measured from the patient's anterior pelvic plane, supine coronal plane, standing coronal plane or any other reference plane that the surgeon may find useful. Also disclosed are systems, methods and devices to measure hip center of rotation and provide leg length and offset measurements in hip replacement surgery.