Method for verifying hard tissue location using implant imaging
US12295762B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2023 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Dec 21, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/034
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A low radiation, intra-operative method using two-dimensional imaging to register the positions of surgical implants relative to their pre-operative planned positions. Intraoperatively, a pair of two-dimensional fluoroscope images in different planes or a single three-dimensional image is acquired and compared to a set of three-dimensional preoperative images, to allow registration of the implant region anatomy. A second set of intraoperative fluoroscope images is acquired of the surgical area with implants in place. The second set of images is compared with the first set of intraoperative images to ascertain alignment of the implants. Registration between first and second intraoperative image sets is accomplished using the implants themselves as fiducial markers, and the process repeated until an acceptable configuration of the implants is obtained. The method is particularly advantageous for spinal surgery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.