SURGERY ASSISTANCE DEVICE AND SURGERY ASSISTANCE PROGRAM

摘要

A personal computer (1) of a surgery assistance system (100) performs navigation during surgery while combining and displaying an image of the distal end (surgical instrument image (33a)) of a surgical instrument (33) and a distance from the surgical instrument distal end to the resection site, in a three-dimensional image produced by a volume rendering computer (13).

主权项

1. A surgery assistance device configured to perform navigation while displaying a three-dimensional simulation image produced from tomographic image information during surgery in which a resection-use surgical instrument is used while the user views an endoscopic image, the device comprising:
a tomographic image information acquisition section configured to acquire tomographic image information about a patient; a memory that is connected to the tomographic image information acquisition section and configured to store voxel information for the tomographic image information; a volume rendering computer that is connected to the memory and configured to sample voxel information in a direction perpendicular to the sight line on the basis of the voxel information; an endoscope/surgical instrument position sensor configured to sequentially sense the three-dimensional positions of the endoscope and the surgical instrument; a registration computer configure to integrate the coordinates of a three-dimensional image produced by the volume rendering computer and the coordinates of the endoscope and the surgical instrument sensed by the endoscope/surgical instrument position sensor; a simulator configured to store the resection portion scheduled for surgery and virtually resected on the three-dimensional image produced by the volume rendering computer, in the memory after associating it with the voxel information; a distance calculator configured to calculate a distance between the working end of the surgical instrument on the three-dimensional image and the voxel information indicating the resection portion and stored in the memory; and a navigator configured to display the working end of the surgical instrument on the three-dimensional image by using the coordinates of the surgical instrument during surgery, and display the distance between the working end and the voxel information indicating the resection portion stored in the memory, along with the endoscopic image displayed during surgery.