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US 11,589,997 B2Granted
Systems and methods for surgical implant guidance and positioning with optical surface imaging
AssigneeSunnybrook Research Institute
InventorsDavid M. Burns, Cari M. Whyne, Normand Robert
Life of this patent
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Abstract
Described here are systems and methods for positioning a surgical implant, such as a glenoid component, or other medical device intra-operatively. In general, the systems and methods described in the present disclosure implement a computer vision system, which may be a structured light computer vision system, together with a suitable optical tracker as an accurate intra-operative tool for predicting post-operative implant position in surgical procedures.
Claims8
A method for guiding a placement of a surgical implant or surgical tool, the steps of the method comprising:
- (a) providing to a computer system, one or more pre-operative images that depict a patient and an anatomical region-of-interest (ROI) in the patient;
- (b) generating with the computer system, a model of the anatomical ROI from the one or more pre-operative images;
- (c) acquiring an image of the patient using an imaging system when an optical tracker having a channel formed therein is arranged proximate the anatomical ROI, wherein the image of the patient depicts at least one of a position or an orientation of the optical tracker relative to the anatomical ROI, wherein the channel formed in the optical tracker defines a start point and a trajectory for guidance and positioning of at least one of a surgical implant or an implantable medical device based on the at least one of the position or the orientation of the optical tracker;
- (d) generating registered data with the computer system by registering the image of the patient with at least one of the one or more pre-operative images or the model of the anatomical ROI, wherein the registered data define a spatial relationship between the anatomical ROI and the optical tracker, thereby defining the start point and the trajectory relative to the anatomical ROI;
- (e) calculating a spatial relationship of the surgical implant or surgical tool with respect to the anatomical ROI using the registered data and based on a mechanical relationship between the surgical implant or surgical tool and the optical tracker;
- and
- (f) displaying at least one of the registered data or the spatial relationship of the surgical implant or surgical tool with respect to the anatomical ROI on a display, wherein the registered data comprises a visual depiction of at least the start point and the trajectory relative to the anatomical ROI in order to provide visual guidance to a user of a placement of the surgical implant or surgical tool relative to the anatomical ROI.
4 more elements
Dependencies are inferred from the claim text.