Constructive modelling of articles
First Claim
1. A method for constructive modelling of articles, said method comprising the steps of:
- inputting into a data storage means scanning data relating to internal and/or external surfaces of an article;
computing the stored scanning data according to a predetermined algorithm to reconstruct a plurality of parallel two dimensional cross-sectional images of the article;
computing said plurality of two dimensional cross-sectional images according to a predetermined algorithm to generate a three dimensional co-ordinate data set for the article; and
generating a three dimensional representation of said article by a constructive modelling process using selected sequential two dimensional image data sets computed from said three dimensional co-ordinate data set, said two dimensional image data sets being computed in parallel planes which are not parallel to the planes in which said two dimensional cross-sectional images are obtained by scanning.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for constructive modelling of articles including prostheses and anatomical pathology wherein CT scan data is computed to construct a plurality of two dimensional cross sectional images along one axis and the two dimensional image data is computed to create three dimensional coordinate data sets for the articles to be modelled. The three dimensional data sets are then computed to obtained spaced parallel two dimensional image data sets in a second plane of the article and the reconstructed two dimensional image data sets are employed in a constructive modelling process to produce a three dimensional model of the article or part thereof.
259 Citations
22 Claims
-
1. A method for constructive modelling of articles, said method comprising the steps of:
-
inputting into a data storage means scanning data relating to internal and/or external surfaces of an article; computing the stored scanning data according to a predetermined algorithm to reconstruct a plurality of parallel two dimensional cross-sectional images of the article; computing said plurality of two dimensional cross-sectional images according to a predetermined algorithm to generate a three dimensional co-ordinate data set for the article; and generating a three dimensional representation of said article by a constructive modelling process using selected sequential two dimensional image data sets computed from said three dimensional co-ordinate data set, said two dimensional image data sets being computed in parallel planes which are not parallel to the planes in which said two dimensional cross-sectional images are obtained by scanning. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method for the surgical implantation of a prosthesis comprising the steps of:
-
topographically scanning a region of anatomical pathology; inputting scanning data so obtained into a data storage means; computing the stored scanning data according to a predetermined algorithm to reconstruct a plurality of parallel two dimensional cross-sectional images of the anatomical pathology; computing said plurality of two dimensional cross-sectional images according to a predetermined algorithm to generate a three dimensional co-ordinate data set for the anatomical pathology; generating a three dimensional representation of said anatomical pathology or a mould surface therefor by a constructive modelling process using selected sequential two dimensional image data sets computed from said three dimensional co-ordinate data set, said two dimensional image data sets being computed in parallel planes which are not parallel to the planes in which said two dimensional cross-sectional images are obtained by scanning; and surgically implanting in a patient a prosthesis obtained directly or indirectly therefrom, said prosthesis being characterised in having a close fit with connective tissue and contours appropriate for an implant site. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
-
Specification