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A METHOD FOR ELECTROMAGNETIC IMAGE GUIDED COCHLEAR IMPLANTATION

IP.com Disclosure Number: IPCOM000124017D
Publication Date: 2005-Apr-06
Document File: 3 page(s) / 610K

Publishing Venue

The IP.com Prior Art Database

Abstract

In an embodiment of a method for electromagnetic cochlear implantation, an electromagnetic sensor is attached to a drill burr and calibrated. The navigated drill burr is tracked against the saved CT images of the bony mastoid, middle ear and labyrinth for localization of optimal entry points, depth, and vector. The creation of the accurate burr hole allows the precise placement of the implant electrode into the cochlea. The method according to this invention may significantly decrease complication rates of electrode misplacement and also may demand less surgical time with greater success of implant positioning that may lead to improved patient outcomes.

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A METHOD FOR ELECTROMAGNETIC IMAGE GUIDED COCHLEAR IMPLANTATION

FIELD OF THE INVENTION

[0001]               This invention relates generally, to an image guided surgery, and more particularly to, a method for electromagnetic image guided cochlear implantation in  Surgical  imaging.

BACKGROUND OF THE INVENTION

[0002]   Cochlear implantation requires significant visualization for accurate and optimal localization for bony entry points into the middle and inner ear.  Conventionally, surgeons base their plan on historic CT - X-ray data and guide their instruments with optical  loupesor microscopes to the surface anatomy. 

[0003]    However, there exists a need for adapting surgical navigation to a surgical burr which will enable the surgeon to see “into” the mastoid, middle ear and labyrinth with real-time instrument tracking.  This method will greatly increase the surgical precision of a 2mm x 5mm surgical zone and expedite the adoption of this technically challenging and relatively new procedure for the electrical restoration of deafness. 

BRIEF DESCRIPTION OF THE DRAWINGS

[0004]    FIG. 1 to FIG. 3 schematically show an electromagnetic image guided cochlear implantation procedure according to one embodiment of this invention.

DETAILED DESCRIPTION OF THE INVENTION

[0005]    Various embodiments of this invention provide a method for electromagnetic image guided cochlear implantation in surgical imaging.  However, the embodiments are not limited and may be implemented in connection with other systems such as, for example, industrial imaging.  

[0006]    FIG. 1 to FIG. 3 show an embodiment of a method for electromagnetic cochlear implantation according to this invention.   

[0007]   In one embodiment, an electromagnetic sensor is attached to a drill burr and calibrated.  The navigated drill burr is tracked against the saved CT images of the bon...