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EP0146511A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

A method of localisation

Assignee: CESSIONE;TURON AB
•
Filing: 1984-11-08
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Granted: —
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Expires: 2004-11-08
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Abstract

Abstract The disclosure relates to a method for localising the three-dimensional position of a spot in an object in conjunction with X-ray exposure of the object, in which the object is fixed in a pre-determined position and is exposed by means of an exposure apparatus in two directions each on either side of a centre line at a right angle to the plane of the image or obtaining a first print and a second print, the two-dimensional position of the target spot on the two prints being established in relation to an index on the prints, and the coordinates of the spot in relation to the indices being processed to obtain control signals for adjustment of a guidance instrument with means for placing in the target spot in the object.

Inventors

  • 👤 Björn Eric Ericson

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 04:48
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/12; A61B17/00; A61B17/34; A61B17/3403; A61B6/08; A61B6/50; A61B6/502; A61B90/00; A61B90/10; A61B90/14; A61B90/17; A61B10/00; A61B10/02; A61B10/0233; A61B90/36; A61B90/37; A61B2090/376; A61B90/11

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 123 words
A method, in conjunction with the X-ray exposure of an object, of localising the three-dimensional position of a spot in the object, which, after fixation in a pre-determined position, is exposed by means of an exposure apparatus in two directions, each on either side of a centre line at right angles to the image plane, for obtaining a first print and a second print, wherein the two-dimensional position of the target spot on the two image prints is established in relation to an index on the prints; and wherein the coordinates of the spot in relation to the indices are processed for obtaining control signals for adjustment of a guidance instrument with a device for placing in the target spot in the object.
Claim 2
Independent Claim 123 words
A method, in conjunction with the X-ray exposure of an object, of localising the three-dimensional position of a spot in the object, which, after fixation in a pre-determined position, is exposed by means of an exposure apparatus in two directions, each on either side of a centre line at right angles to the image plane, for obtaining a first print and a second print, wherein the two-dimensional position of the target spot on the two image prints is established in relation to an index on the prints; and wherein the coordinates of the spot in relation to the indices are processed for obtaining control signals for adjustment of a guidance instrument with a device for placing in the target spot in the object.
Claim 3
Dependent Claim 28 words
The method as recited in claim 1, wherein the exposure apparatus and guidance instrument are placed in the same centre reference, from which the right-angle centre line departs.
Claim 4
Dependent Claim 24 words
The method as recited in claim 1, wherein the index is exposed on images simultaneously with the object for obtaining an exact measurement reference.

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