Method and system for assisting an operator in endoscopic navigation
First Claim
Patent Images
1. A computer-implemented method for assisting an operator in endoscopic navigation, the method comprising:
- referencing a patient to a fixed reference frame wherein the patient is movable relative to the fixed reference frame;
retrieving from a computer memory a three-dimensional patient computer model generated from a tomography scan and stored prior to the endoscopic navigation without reference to the fixed reference frame;
subsequent to retrieving the stored three-dimensional patient computer model, referencing the three-dimensional patient computer model to the fixed reference frame;
determining a current position and shape of an endoscopic device relative to the fixed reference frame, wherein the endoscopic device has a distal tip with an image capturing device positioned to capture images from a perspective of the distal tip;
generating a three-dimensional computer model of the endoscopic device according to the determined current position and shape;
displaying the three-dimensional computer model of the endoscopic device registered to the three-dimensional patient computer model on a display screen so as to provide the endoscopic navigation assistance to the operator;
simultaneously displaying a first captured image from a set of captured images from the endoscopic device adjacent to a distal tip of the model of the endoscopic device, the first captured image being displayed in a position based on the registration of the three-dimensional model of the endoscopic device to the three-dimensional patient computer model;
computing a panoramic image from the set of captured images stored in a memory device by mosaicking a plurality of the captured images together;
displaying the panoramic image on the display screen; and
displaying the three-dimensional computer model of the endoscopic device and the three-dimensional patient computer model as a picture-in-picture over the panoramic image on the display screen.
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Abstract
Navigation guidance is provided to an operator of an endoscope by determining a current position and shape of the endoscope relative to a reference frame, generating an endoscope computer model according to the determined position and shape, and displaying the endoscope computer model along with a patient computer model referenced to the reference frame so as to be viewable by the operator while steering the endoscope within the patient.
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Citations
24 Claims
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1. A computer-implemented method for assisting an operator in endoscopic navigation, the method comprising:
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referencing a patient to a fixed reference frame wherein the patient is movable relative to the fixed reference frame; retrieving from a computer memory a three-dimensional patient computer model generated from a tomography scan and stored prior to the endoscopic navigation without reference to the fixed reference frame; subsequent to retrieving the stored three-dimensional patient computer model, referencing the three-dimensional patient computer model to the fixed reference frame; determining a current position and shape of an endoscopic device relative to the fixed reference frame, wherein the endoscopic device has a distal tip with an image capturing device positioned to capture images from a perspective of the distal tip; generating a three-dimensional computer model of the endoscopic device according to the determined current position and shape; displaying the three-dimensional computer model of the endoscopic device registered to the three-dimensional patient computer model on a display screen so as to provide the endoscopic navigation assistance to the operator; simultaneously displaying a first captured image from a set of captured images from the endoscopic device adjacent to a distal tip of the model of the endoscopic device, the first captured image being displayed in a position based on the registration of the three-dimensional model of the endoscopic device to the three-dimensional patient computer model; computing a panoramic image from the set of captured images stored in a memory device by mosaicking a plurality of the captured images together; displaying the panoramic image on the display screen; and displaying the three-dimensional computer model of the endoscopic device and the three-dimensional patient computer model as a picture-in-picture over the panoramic image on the display screen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system comprising:
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a display screen; an endoscopic device including an image capturing device positioned at a distal tip of the endoscopic device to capture images from a perspective of the distal tip; and a processor adapted to; reference a patient to a fixed reference frame wherein the patient is movable relative to the fixed reference frame; retrieve from a computer memory a three-dimensional patient computer model generated from a tomography scan and stored prior to the endoscopic navigation without reference to the fixed reference frame; subsequent to the retrieval of the stored three-dimensional patient computer model, reference the three-dimensional patient computer model to the fixed reference frame; determine a current position and shape of the endoscopic device relative to the fixed reference frame; generate a three-dimensional computer model of the endoscopic device according to the determined current position and shape; display the three-dimensional computer model of the endoscopic device registered to the three-dimensional patient computer model on the display screen so as to provide endoscopic navigation assistance to an operator of the system; simultaneously display a first captured image, from a set of images captured by the endoscopic device, adjacent to a distal tip of the model of the endoscopic device on the display screen, the first captured image being displayed in a position based on the registration of the three-dimensional model of the endoscopic device to the three-dimensional patient computer model; compute a panoramic image from the set of captured images stored in a memory device by mosaicking a plurality of the captured images together; display the panoramic image on the display screen; display the three-dimensional computer model of the endoscopic device and the three-dimensional patient computer model as a picture-in-picture over the panoramic image on the display screen; display an indication of a landmark along a path of the endoscopic device; and display a first pattern on a portion of the endoscopic device proximal to the landmark and display a second pattern on a portion of the endoscopic device distal to the landmark. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification