Medical device
First Claim
1. A medical device, comprising:
- an image pickup section that is able to pick up an image of a tube cavity in a subject, the image pickup section disposed at a distal end portion of an endoscope;
a medical instrument for examination or treatment in the tube cavity based on a reference point, the medical instrument configured to protrude from the distal end portion;
a virtual endoscopic image generation section configured to generate a virtual endoscopic image in the tube cavity from a plurality of different line-of-sight positions using three-dimensional image data of the subject that is obtained in advance;
an image retrieval section configured to retrieve the virtual endoscopic image highly similar to the endoscopic image of the tube cavity picked up by the image pickup section;
a reference-point setting section configured to set a predetermined position near the image pickup section at the distal end portion as the reference point based on the line-of-sight position of the highly similar virtual endoscopic image; and
a relative-position calculation section for calculating a relative position of the medical instrument protruded from the distal end portion to the reference point.
3 Assignments
0 Petitions
Accused Products
Abstract
A medical device for examination or treatment based on a reference point, includes: a virtual endoscopic image generation section configured to generate a virtual endoscopic image of a bronchus from a plurality of different line-of-sight positions using three-dimensional image data of the bronchus of a subject that is obtained in advance; an image retrieval section configured to retrieve a virtual endoscopic image highly similar to an endoscopic image of the bronchus picked up by an image pickup section arranged at a distal end portion of an insertion section; a reference-point setting section configured to set a reference point based on a line-of-sight position of the highly similar virtual endoscopic image; and a relative-position calculation section configured to calculate a relative position of a treatment instrument to the reference point.
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Citations
6 Claims
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1. A medical device, comprising:
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an image pickup section that is able to pick up an image of a tube cavity in a subject, the image pickup section disposed at a distal end portion of an endoscope; a medical instrument for examination or treatment in the tube cavity based on a reference point, the medical instrument configured to protrude from the distal end portion; a virtual endoscopic image generation section configured to generate a virtual endoscopic image in the tube cavity from a plurality of different line-of-sight positions using three-dimensional image data of the subject that is obtained in advance; an image retrieval section configured to retrieve the virtual endoscopic image highly similar to the endoscopic image of the tube cavity picked up by the image pickup section; a reference-point setting section configured to set a predetermined position near the image pickup section at the distal end portion as the reference point based on the line-of-sight position of the highly similar virtual endoscopic image; and a relative-position calculation section for calculating a relative position of the medical instrument protruded from the distal end portion to the reference point. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification