Patent · US Active

Sagittal rotation determination

US11801094B2 · kind B2 · utility

1Cited by

4References

20Claims

0Family size

Assignees

SMITH & NEPHEW, INC. · US
SMITH & NEPHEW ORTHOPAEDICS AG · CH
SMITH & NEPHEW ASIA PACIFIC PTE. LIMITED · SG

Inventors

Steffen Beck · Munich, DE
Mario Schubert · Poing, DE
Christian Brack · Diedorf, DE
Luise Poitzsch · Wolnzach, DE

Key dates

Filing date	Dec 10, 2020
Grant date	Oct 31, 2023
Priority date	—
Expiry date	Aug 4, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG06T2219/2016
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The invention relates to a method of determining the sagittal rotation of a patient's pelvis based on a standard anterior posterior X-ray-image with known image parameters and a calibration of the image, for example by using at least one King-Mark calibration object. The angle of the pelvic rotation is determined between a pelvic plane which is orthogonal to the midsagittal plane of the pelvis, and the image plane of the X-ray-image. Assuming the patient's position shown on the X-ray-image represents a standard neutral position, the X-ray-image plane can be used as a functional reference plane for further calculations, for example during hip-replacement surgery. The present invention further relates to a corresponding computer program and system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.