Device for helping to bend surgical rods
AssigneesUniversite De Poitiers, Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier Universitaire De Poitiers
InventorsArnaud GERMANEAU, Tanguy VENDEUVRE
Life of this patent
Estimating the term…
Abstract
A method for helping to bend a rod that can be implanted in a patient, the method including the following steps: acquiring one or more measurements of distance and/or angle between elements of a vertebral column of the patient; determining a type of vertebral column of the patient, on the basis of the measurements, according to a classification; identifying one or more invariant parameters corresponding to the determined type of vertebral column; calculating one or more radii of curvature for bending a rod on the basis of the previously identified invariant parameters and the determined type of vertebral column; obtaining a representation of the rod bent according to the one or more radii of curvature; and displaying the representation.
Claims15
A method for helping with bending a rod that can be implanted in a patient, the method comprising, on the basis of a prior acquisition of one or more measurements of distance and/or of angle between elements of a spinal column of the patient, these measurements being taken from an image of the back of the patient, the following steps:
- a) determining a type of spinal column of the patient according to a classification;
- b) identifying one or more invariable geometrical parameters corresponding to the type of spinal column determined;
- c) calculating one or more radii of curvature for the bending of a rod as a function of said measurements, of the type of spinal column determined and of said invariable parameters previously identified;
- d) obtaining a representation of the rod bent to said one or more radii of curvature;
- and
- e) displaying the representation at a scale of 1:1.
A device for helping with bending a rod that can be implanted in a spinal column of a patient, comprising:
- f) acquisition means configured to acquire, from an image of the back of the patient, one or more measurements of distance and/or of angle between elements of the spinal column of the patient;
- g) storage means configured to store a classification of types of spinal column and invariable parameters;
- h) processing means configured to:
- i) determine a type of spinal column of the patient according to a determined classification;
- ii) identify one or more invariable parameters corresponding to the type of spinal column determined;
- iii) calculate one or more radii of curvature for the bending of a rod as a function of said measurements, of the invariable parameters previously identified, of the type of spinal column determined and of calculation parameters;
- iv) obtain a representation of the rod bent according to said one or more radii of curvature;
- i) display means configured to display the representation.
Dependencies are inferred from the claim text.