Method for generating patient-specific implants
First Claim
1. Method for manufacturing a patient-specific implant, comprising:
- obtaining medical two-dimensional image data of a defect area in a patient requiring an implant and an environment thereof for a patient by a method selected from the group consisting of computer tomography (CT) and nuclear magnetic resonance (NMR) tomography;
using a mathematical image processing algorithm to form a surface using the two-dimensional image data;
performing a segmentation to detect bones and hard tissue ranges;
generating a virtual three-dimensional model from the image data of at least the defect area in the patient requiring an implant and the environment thereof;
comparing the virtual three-dimensional model to real medical reference data;
selecting from the real medical reference data a set of said reference data best suited for the patient and forming a three-dimensional reference model object therefrom, the step of selecting the set of said reference data best suited for the patient and forming a reference model object therefrom comprising;
first selecting a plurality of sets of the reference data and forming a corresponding plurality of three-dimensional reference model objects therefrom most resembling the patient considering mathematical, functional, medical and aesthetic parameters; and
then selecting one of said plurality of three-dimensional reference model objects best suited for the patient;
generating a virtual implant model from said selected one of said plurality of three-dimensional reference model objects by superimposing said selected one of said plurality of three-dimensional reference model objects with the virtual three-dimensional model; and
manufacturing the implant by computer numeric control based on data from the virtual implant model.
2 Assignments
0 Petitions
Accused Products
Abstract
An implant is generated which is functionally and aesthetically adapted to the patient with a greater degree of precision, irrespective of the size, form and complexity of the defect, whereby the implant can be produced and operatively inserted into the patient over a short time period and in a simple manner. A virtual three-dimensional model of the patient which is formed from existing recorded (two-dimensional) image data of the patient is compared with real medical reference data. The comparison which is, for example, carried out using a data bank with test person data enables a reference model object which is most suited to the patient or closest to the patient model to be selected or formed and a virtual implant model is generated accordingly. Computer numeric control data is directly generated from the implant model which is generated virtually in the computer for program-assisted production of the implant.
-
Citations
10 Claims
-
1. Method for manufacturing a patient-specific implant, comprising:
-
obtaining medical two-dimensional image data of a defect area in a patient requiring an implant and an environment thereof for a patient by a method selected from the group consisting of computer tomography (CT) and nuclear magnetic resonance (NMR) tomography; using a mathematical image processing algorithm to form a surface using the two-dimensional image data; performing a segmentation to detect bones and hard tissue ranges; generating a virtual three-dimensional model from the image data of at least the defect area in the patient requiring an implant and the environment thereof; comparing the virtual three-dimensional model to real medical reference data; selecting from the real medical reference data a set of said reference data best suited for the patient and forming a three-dimensional reference model object therefrom, the step of selecting the set of said reference data best suited for the patient and forming a reference model object therefrom comprising; first selecting a plurality of sets of the reference data and forming a corresponding plurality of three-dimensional reference model objects therefrom most resembling the patient considering mathematical, functional, medical and aesthetic parameters; and then selecting one of said plurality of three-dimensional reference model objects best suited for the patient; generating a virtual implant model from said selected one of said plurality of three-dimensional reference model objects by superimposing said selected one of said plurality of three-dimensional reference model objects with the virtual three-dimensional model; and manufacturing the implant by computer numeric control based on data from the virtual implant model. - View Dependent Claims (2, 3, 4, 5)
-
-
6. Method for manufacturing a patient-specific implant, comprising:
-
obtaining medical two-dimensional image data of a defect area in a patient requiring an implant and an environment thereof for a patient by a method selected from the group consisting of computer tomography (CT) and nuclear magnetic resonance (NMR) tomography; using a mathematical image processing algorithm to form a surface using the two-dimensional image data; performing a segmentation to detect bones and hard tissue ranges; generating a virtual three-dimensional model from the image data of at least the defect area in the patient requiring an implant and the environment thereof; comparing the virtual three-dimensional model to real medical reference data; selecting from the real medical reference data a set of said reference data best suited for the patient and forming a three-dimensional reference model object therefrom, the step of selecting the set of said reference data best suited for the patient and forming a reference model object therefrom comprising; first selecting a plurality of three-dimensional reference model objects similar to the virtual three-dimensional model considering mathematical, functional, medical and aesthetic parameters; and then selecting one of said plurality of three-dimensional reference model objects best suited for the patient; generating a virtual implant model from said selected one of said plurality of three-dimensional reference model objects by superimposing said selected one of said plurality of three-dimensional reference model objects with the virtual three-dimensional model; and manufacturing the implant by computer numeric control based on data from the virtual implant model. - View Dependent Claims (7, 8, 9, 10)
-
Specification