Surgical planning system for the reconstruction of missing or damaged bone parts

Patent metadata

Field	Value
Publication number	US-11457979-B2
Application number	US-201816771582-A
Country	US
Kind code	B2
Filing date	Dec 11, 2018
Priority date	Dec 11, 2017
Publication date	Oct 4, 2022
Grant date	Oct 4, 2022

Abstract

A surgical planning system for the reconstruction of missing or damaged bone parts comprises processing circuitry for receiving 3D image data regarding at least one osseous donor area, processing the 3D image data into structured 3D image data where osseous portions are distinguished from soft tissues and/or vascular systems, reading in of 3D target data regarding a missing or damaged bone part, obtaining one or more 3D target curves in relation to the 3D target data and the 3D image data of the at least one osseous donor area, and segmenting the structured 3D image data with the osseous portions of the osseous donor area into segments, where the segments within the structured 3D image data are determined based on the 3D target data and an adaptation of sections of the one or more 3D target curves.

First claim

What is claimed is:

1. A surgical planning system for the reconstruction of missing or damaged bone parts, comprising:
processing circuitry for:
receiving 3D image data regarding at least one osseous donor area;
processing the 3D image data into structured 3D image data where osseous portions are distinguished from soft tissues and/or vascular systems;
reading in of 3D target data regarding a missing or damaged bone part;
obtaining one or more 3D target curves in relation to the 3D target data and the 3D image data of the at least one osseous donor area;

segmenting the structured 3D image data with the osseous portions of the at least one osseous donor area into segments, wherein the segments within the structured 3D image data are determined based on the 3D target data and an adaptation of sections of the one or more 3D target curves; and
merging the segments into a reconstruction, wherein the segmentation adapts the one or more 3D target curves to 3D surfaces of the 3D target data.

2. The surgical planning system according to claim 1 , wherein the segmentation comprises adjusting sizes for the segments.

3. The surgical planning system according to claim 1 , wherein the segmentation comprises adjusting maximum sizes for the segments.

4. The surgical planning system according to claim 1 , wherein the processing circuitry creates structural data for a surgical template for use in a subsequent surgery.

5. The surgical planning system according to claim 4 , wherein the structural data for a surgical template is structural data for a 3D printer.

6. The surgical planning system according to claim 1 , wherein the segmentation takes soft tissues and/or vascular systems into consideration.

7. The surgical planning system according to claim 1 , wherein a number of proposals are created for a segmentation using easily variable boundary conditions, and one, several, or all of the proposals are visualized for a selection.

8. The surgical planning system according to claim 1 , wherein the processing circuitry provides for the simultaneous visualization of the 3D target data and the reconstruction of the segments.

9. The surgical planning system according to claim 1 , wherein the 3D image data is data from computer tomography and/or MRT, MRT-angio and/or PET/CT, SPECT/CT, CT-angio, digital volume tomography, or 3D sonography.

10. The surgical planning system according to claim 1 , wherein the 3D target data comprises copying and/or mirroring and/or relative repositioning of corresponding missing or damaged bone parts of the same patient or is generated from an anthropometric geometry database.

11. The surgical planning system according to claim 1 , wherein data is provided for a robot-assisted surgery and/or real-time navigated surgery.

12. The use of a system according to claim 1 , wherein the missing or damaged bone parts are parts of either a mandibula, a maxilla, a zygoma, a cranium, a hand bone, a foot bone, a tibia, a humerus, a femur, a radius or an ulna.

13. The use of a system according to claim 1 , wherein the at least one osseous donor area is an iliac crest and/or a scapula and/or a fibula and/or a radius and/or a femur and/or a rib and/or a cranium and/or a tabula externa.

14. The use of a system according to claim 1 , wherein the missing or damaged bone parts are parts of either a mandibula, a maxilla, a zygoma, a cranium, a hand bone, a foot bone, a tibia, a humerus, a femur, a radius or an ulna, and wherein the at least one osseous donor area is an iliac crest and/or a scapula and/or a fibula and/or a radius and/or a femur and/or a rib and/or a cranium and/or a tabula externa.

15. A surgical planning system for the reconstruction of missing or damaged bone parts, comprising:
processing circuitry for:
receiving 3D image data regarding at least one osseous donor area;
processing the 3D image data into structured 3D image data where osseous portions are distinguished from soft tissues and/or vascular systems;
reading in of 3D target data regarding a missing or damaged bone part;
obtaining one or more 3D target curves in relation to the 3D target data and the 3D image data of the at least one osseous donor area;
segmenting the structured 3D image data with the osseous portions of the at least one osseous donor area into segments, wherein the segments within the structured 3D image data are determined based on the 3D target data and an adaptation of sections of the one or more 3D target curves;
merging the segments into a reconstruction, wherein the segmentation adapts the one or more 3D target curves to 3D surfaces of the 3D target data;
creating structural data for a surgical template for use in a subsequent surgery; and
causing simultaneous visualization of the 3D target data and the reconstruction of the segments, wherein the segmentation comprises adjusting minimum sizes for the segments, wherein the segmentation comprises adjusting maximum sizes for the segments, wherein the structural data for the surgical template is structural data for a 3D printer, wherein the segmentation takes soft tissues and/or vascular systems into consideration, wherein a number of proposals are created for a segmentation using easily variable boundary conditions, and one, several, or all of the proposals are visualized for a selection, wherein the 3D image data is data from computer tomography and/or MRT, MRT-angio and/or PET/CT, SPECT/CT, CT-angio, digital volume tomography, and 3D sonography, wherein the 3D target data comprises copying and/or mirroring and/or relative repositioning of corresponding missing or damaged bone parts of the same patient or is generated from an anthropometric geometry database, wherein data is provided for a robot-assisted surgery and/or real-time navigated surgery, wherein the missing or damaged bone parts are parts of either a mandibula, a maxilla, a zygoma, a cranium, a hand bone, a foot bone, a tibia, a humerus, a femur, a radius or an ulna, and wherein the at least one osseous donor area is an iliac crest and/or a scapula and/or a fibula and/or a radius and/or a femur and/or a rib and/or a cranium and/or a tabula externa.

Assignees

• Rwth Aachen

Inventors

• Modabber Ali
• Raith Stefan

Classifications

• A61B2034/107

  Visualisation of planned trajectories or target regions · CPC title

• G06T7/0012

  Biomedical image inspection · CPC title

• A61B34/10 Primary

  Computer-aided planning, simulation or modelling of surgical operations · CPC title

• A61B2034/105

  Modelling of the patient, e.g. for ligaments or bones · CPC title

• G06T7/11

  Region-based segmentation · CPC title