Patent · US Active

Method for planning positioning of a ball joint prosthesis

US9713539B2 · kind B2 · utility

14Cited by

2References

19Claims

0Family size

Assignee

Brainlab AG · DE

Inventors

Martin Haimerl · Gilching, DE
Lars Dohmen · Munich, DE
Melanie Wegner · Kirchseeon, DE
Sabine Gneiting · Taufkirchen, DE

Key dates

Filing date	Jan 20, 2011
Grant date	Jul 25, 2017
Priority date	—
Expiry date	Oct 10, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2034/107
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The present invention relates to a method for planning the positioning of a ball joint prosthesis, in particular a hip joint prosthesis, wherein the prosthesis includes a stem and a cup and the method comprises the following steps: —determining the geometric shape of the joint socket, in particular the acetabulum, and the geometric shape of the cup which is to be placed; —defining target areas where the cup has to abut the bony structure of the joint socket, in particular the acetabulum, in order for the cup to be sufficiently fixed; —determining actual areas of the cup which will abut the bony structure of the joint socket, in particular the acetabulum, when the cup is placed; —defining a requirement for the position and/or orientation of the cup on the basis of the position and/or size of the target areas and/or actual areas. The present invention also relates to a method for optimizing the positioning of a ball joint prosthesis, in particular a hip joint prosthesis, wherein the prosthesis includes a stem and a cup and the method comprises the following steps: —defining at least one requirement for the position and/or orientation of the cup; —calculating an optimum position and/o…

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