Digital Surgery Systems, Inc.

George C Polchin

Stephen C Minne

Alan Fridman

David S Immel

Michael Larkin

Systems and methods are disclosed for an automated touchless registration of patient anatomy for surgical navigation systems. An example method includes: acquiring a plurality of images of the patient; determining relevant objects from a plurality of poses; and processing the received images through a photogrammetry module. The photogrammetry module may provide camera calibration and facilitate camera registration. As such, manual movement or robotic movement capabilities of the camera head, and digital visualization capabilities of a digital surgical microscope disclosed herein can be extended to allow near-automated or fully automated touchless registration for traditional surgical navigation.

Automated touchless registration for surgical navigation

A stereoscopic camera with fluorescence strobing based visualization is disclosed herein. In an example, a stereoscopic camera is configured to provide a visible light mode for a first specified number of frames over a cycle by causing visible light reflected from a surgical site to be provided to left and right image sensors by activating a visible light source. The stereoscopic camera is also configured to provide a fluorescence mode for a second specified number of frames over the cycle by causing fluorescence emission light from the surgical site to be provided to the left and right image sensors by activating a near-ultraviolet light source. The stereoscopic camera switches between the visible light mode and the fluorescence mode based on the first and second specified number of frames. A processor superimposes image data corresponding to the fluorescence mode on subsequently received image data corresponding to the visible light mode.

Stereoscopic camera with fluorescence strobing based visualization

New and innovative systems and methods for registration degradation correction for surgical procedures are disclosed. An example system includes a surgical marking pen including a first trackable target and a registration plate including a second trackable target. The system also includes a navigation camera and a processor configured to perform a pen registration that determines a transformation between a tip of the surgical marking pen and the first trackable target when the tip of the surgical marking pen is placed on the registration plate. The pen registration enables the processor to record virtual marks at locations of the pen tip that correspond to physical marks drawn by the pen. Locations of the virtual marks are later compared to images of the physical marks to correct any registration degradation by moving a surgical camera or robotic arm connected to the surgical camera.

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Goleta, CA, United States of America

George C Polchin