Abstract:
A medical robotic system includes a viewer for displaying an image of a work site, a gaze tracker for tracking a gaze point of a user on the viewer, and a processor. The processor is configured to: draw an area or volume defining shape, overlaid on the image of the work site, in a position determined by the gaze tracker; assign a fixed virtual constraint to the shape and constrain movement of a robotic tool according to the fixed virtual constraint; receive a user selected action command selecting an image of patient anatomy; and superimpose the selected image of the patient anatomy over the image of the work site within the shape. The selected image of the patient anatomy is registered to the image of the work site.
Abstract:
The present disclosure relates to calibration assemblies and methods for use with an imaging system, such as an endoscopic imaging system. A calibration assembly includes: an interface for constraining engagement with an endoscopic imaging system; a target coupled with the interface so as to be within the field of view of the imaging system, the target including multiple of markers having calibration features that include identification features; and a processor configured to identify from first and second images obtained at first and second relative spatial arrangements between the imaging system and the target, respectively, at least some of the markers from the identification features, and using the identified markers and calibration feature positions within the images to generate calibration data.
Abstract:
In one embodiment of the invention, an apparatus is disclosed including an image sensor, a color filter array, and an image processor. The image sensor has an active area with a matrix of camera pixels. The color filter array is in optical alignment over the matrix of the camera pixels. The color filter array assigns alternating single colors to each camera pixel. The image processor receives the camera pixels and includes a correlation detector to detect spatial correlation of color information between pairs of colors in the pixel data captured by the camera pixels. The correlation detector further controls demosaicing of the camera pixels into full color pixels with improved resolution. The apparatus may further include demosaicing logic to demosaic the camera pixels into the full color pixels with improved resolution in response to the spatial correlation of the color information between pairs of colors.
Abstract:
In one embodiment, an endoscopic camera for a robotic surgical system includes a stereo camera module mounted to a robotic arm of a patient side cart. The optical and electro-optic components of the camera module are hermetically sealed within a first housing. Signals from an electro-optic component travel through traces in a ceramic substrate forming one side of the hermetically sealed first housing. A second housing surrounds the first housing and optical fibers are dispersed between the housings to provide lighting in a body cavity. The camera module may be sterilized by an autoclave.
Abstract:
In one embodiment, an endoscopic camera for a robotic surgical system includes a stereo camera module mounted to a robotic arm of a patient side cart. The optical and electro-optic components of the camera module are hermetically sealed within a first housing. Signals from an electro-optic component travel through traces in a ceramic substrate forming one side of the hermetically sealed first housing. A second housing surrounds the first housing and optical fibers are dispersed between the housings to provide lighting in a body cavity. The camera module may be sterilized by an autoclave.
Abstract:
The present disclosure relates to calibration assemblies and methods for use with an imaging system, such as an endoscopic imaging system. A calibration assembly includes: an interface for constraining engagement with an endoscopic imaging system; a target coupled with the interface so as to be within the field of view of the imaging system, the target including multiple of markers having calibration features that include identification features; and a processor configured to identify from first and second images obtained at first and second relative spatial arrangements between the imaging system and the target, respectively, at least some of the markers from the identification features, and using the identified markers and calibration feature positions within the images to generate calibration data.
Abstract:
In one embodiment, a method for a stereo endoscope includes receiving electromagnetic radiation through an inner protective window; focusing the electromagnetic radiation with a left optical component toward a left pixel array of a stereo image sensor along an optical axis of the left optical component parallel with but offset from a center axis of the left pixel array; and focusing the electromagnetic radiation with a right optical component toward a right pixel array of the stereo image sensor along an optical axis of the right optical component parallel with but offset from a center axis of the right pixel array. The left pixel array and the right pixel array are offset from the center optical axis of the stereo endoscope to provide stereo image convergence.
Abstract:
In one embodiment, a method for a stereo endoscope includes receiving electromagnetic radiation through an inner protective window; focusing the electromagnetic radiation with a left optical component toward a left pixel array of a stereo image sensor along an optical axis of the left optical component parallel with but offset from a center axis of the left pixel array; and focusing the electromagnetic radiation with a right optical component toward a right pixel array of the stereo image sensor along an optical axis of the right optical component parallel with but offset from a center axis of the right pixel array. The left pixel array and the right pixel array are offset from the center optical axis of the stereo endoscope to provide stereo image convergence.
Abstract:
In one embodiment, a minimally invasive surgical system includes a patient side manipulator, a hermetically sealed endoscopic camera instrument, a vision cart, and a monitor. The patient side manipulator has a robotic arm. The endoscopic camera instrument has a housing at a proximal end to couple to the robotic arm. The endoscopic camera instrument further has a hermetically sealed camera sensor at a distal end, a shaft coupled to the housing, and a wristed joint coupled between the shaft and the camera sensor. The vision cart has a camera control unit coupled in communication with the hermetically sealed camera sensor to capture the images of the surgical site. The monitor is coupled in communication with the camera control unit to display the captured images of the surgical site.
Abstract:
An endoscopic system can include an endoscope shaft having a proximal end and a distal end, and an electrically active sensor system including at least one sensor mounted proximate the distal end and positioned to sense at least one characteristic of an environment in which the distal end is located. The capacitance of the sensor system relative to earth ground maintains current leakage to a level that meets a cardiac float rating.