Virtual measurement tool for minimally invasive surgery
First Claim
1. A surgical system for measuring tissue, the system comprising:
- a first robotic tool having a tool tip;
a stereoscopic image capture device orientable toward a surgical site for capturing left and right stereoscopic images of the tissue at the surgical site and capturing left and right stereoscopic images of the first robotic tool, the image capture device in use generating stereoscopic image data corresponding to the left and right stereoscopic images of the tissue at the surgical site and the first robotic tool;
a stereoscopic display coupled to the image capture device so as to show the captured left and right stereoscopic images of the tissue at the surgical site and the captured left and right stereoscopic images of the first robotic tool to a system user;
an input for designating tissue locations indicated by the first robotic tool, wherein the input is coupled to a master controller coupled with the first robotic tool for receiving movement commands from the system user to guide the first robotic tool to designate a first tissue location, with the first robotic tool tip disposed over the first tissue location as seen from a dominant eye of the system user, without touching the first tissue location, the first tissue location having one or more first points of interest within both of the left and right stereoscopic images of the tissue at the surgical site shown on the stereoscopic display; and
a processor configured to track Cartesian position of the first robotic tool tip and to match an image of the one or more points of interest within one of the left and right stereoscopic images of the tissue at the surgical site to an image of the one or more points of interest within the other of the left and right stereoscopic images of the tissue at the surgical site, based upon local characteristics of the one or more points of interest, so as to determine a three-dimensional location of the tissue that corresponds to the matched one or more points of interest, wherein the three-dimensional location corresponds to the first designated tissue location indicated by the first robotic tool, and to superimpose a first graphical indicator on the stereoscopic images of the tissue at the determined three-dimensional location of the tissue that corresponds to the matched points of interest, without touching the first designated tissue location, the processor being further configured for generating a measurement between at least the first graphical indicator and a second designated tissue location;
wherein the first graphical indicator is superimposed on the stereoscopic images of the tissue at the determined three-dimensional location that corresponds to the matched one or more points of interest, after the first robotic tool is moved to designate the first designated tissue location.
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Accused Products
Abstract
Robotic and/or measurement devices, systems, and methods for telesurgical and other applications employ input devices operatively coupled to tools so as to allow a system user to manipulate tissues and other structures being measured. The system may make use of three dimensional position information from stereoscopic images. Two or more discrete points can be designated in three dimensions so as to provide a cumulative length along a straight or curving structure, an area measurement, a volume measurement, or the like. The discrete points may be identified by a single surgical tool or by distances separating two or more surgical tools, with the user optionally measuring a structure longer than a field of view of the stereoscopic image capture device by walking a pair of tools “hand-over-hand” along the structure. By allowing the system user to interact with the tissues while designating the tissue locations, and by employing imaging data to determine the measurements, the measurement accuracy and ease of measurement may be enhanced.
182 Citations
17 Claims
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1. A surgical system for measuring tissue, the system comprising:
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a first robotic tool having a tool tip; a stereoscopic image capture device orientable toward a surgical site for capturing left and right stereoscopic images of the tissue at the surgical site and capturing left and right stereoscopic images of the first robotic tool, the image capture device in use generating stereoscopic image data corresponding to the left and right stereoscopic images of the tissue at the surgical site and the first robotic tool; a stereoscopic display coupled to the image capture device so as to show the captured left and right stereoscopic images of the tissue at the surgical site and the captured left and right stereoscopic images of the first robotic tool to a system user; an input for designating tissue locations indicated by the first robotic tool, wherein the input is coupled to a master controller coupled with the first robotic tool for receiving movement commands from the system user to guide the first robotic tool to designate a first tissue location, with the first robotic tool tip disposed over the first tissue location as seen from a dominant eye of the system user, without touching the first tissue location, the first tissue location having one or more first points of interest within both of the left and right stereoscopic images of the tissue at the surgical site shown on the stereoscopic display; and a processor configured to track Cartesian position of the first robotic tool tip and to match an image of the one or more points of interest within one of the left and right stereoscopic images of the tissue at the surgical site to an image of the one or more points of interest within the other of the left and right stereoscopic images of the tissue at the surgical site, based upon local characteristics of the one or more points of interest, so as to determine a three-dimensional location of the tissue that corresponds to the matched one or more points of interest, wherein the three-dimensional location corresponds to the first designated tissue location indicated by the first robotic tool, and to superimpose a first graphical indicator on the stereoscopic images of the tissue at the determined three-dimensional location of the tissue that corresponds to the matched points of interest, without touching the first designated tissue location, the processor being further configured for generating a measurement between at least the first graphical indicator and a second designated tissue location; wherein the first graphical indicator is superimposed on the stereoscopic images of the tissue at the determined three-dimensional location that corresponds to the matched one or more points of interest, after the first robotic tool is moved to designate the first designated tissue location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A robotic system for measuring tissue, the system comprising:
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a first robotic tool having a tool tip; a stereoscopic image capture device orientable toward a surgical site for capturing left and right stereoscopic images of the tissue at the surgical site and capturing left and right stereoscopic images of the first robotic tool, the image capture device in use generating stereographic image data corresponding to the left and right stereoscopic images of the tissue at the surgical site and the first robotic tool; a stereoscopic display coupled to the image capture device so as to show the captured left and right stereoscopic images of the tissue and the captured left and right stereoscopic images of the first robotic tool to a system user; an input for designating tissue locations indicated by the first robotic tool, wherein the input is coupled to a master controller coupled with the first robotic tool for receiving movement commands from the system user to guide the first robotic tool to designate a first tissue location, with the first robotic tool disposed over the first tissue location as seen from a dominant eye of the system user, without touching the tissue location, the first tissue location having one or more points of interest within both of the left and right stereoscopic images of the tissue at the surgical site shown on the stereoscopic display; and a processor configured to track Cartesian position of the first robotic tool tip, and to match an image of the one or more points of interest within one of the left and right stereoscopic images of the tissue at the surgical site to an image of the one or more points of interest within the other of the left and right stereoscopic images of the tissue at the surgical site, based upon local characteristics of the image of the one or more points of interest, so as to determine a three-dimensional location of tissue that corresponds to the matched one or more points of interest, wherein the three-dimensional location corresponds to the first designated tissue location indicated by the first robotic tool and to superimpose a first graphical indicator on the stereoscopic images of the tissue at the determined three-dimensional location that corresponds to the matched one or more points of interest, without touching the first designated tissue location, the processor further configured for generating a measurement between at least the first graphical indicator and a second tissue location, wherein the first graphical indicator is superimposed on the stereoscopic images of the tissue at the determined three-dimensional location after the first robotic tool is moved to designate the first designated tissue location; and wherein the processor couples the input to the stereoscopic display so as to receive additional input designation commands indicating additional tissue locations, so as to determine a plurality of three dimensional offset distances between sequential pairs of tissue locations, and so as to sum the three dimensional offset distances as a cumulative measurement value and superimpose the cumulative measurement value on the stereoscopic images of the tissue at the surgical site. - View Dependent Claims (17)
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Specification