IMPLANTABLE MEDICAL DEVICE

摘要

A method of manufacturing an implantable medical device having reduced MRI image distortion, includes producing an implantable medical device. The implantable medical device has a configuration that comprises a housing and one or more internal components disposed within the housing. The configuration is based upon a design process that includes creating a first prototype, determining the aggregate relative magnetic permeability of the first prototype, and modifying the design of the first prototype by at least one of (a) selecting and adding a diamagnetic shimming material to the first prototype or (b) repositioning one or more internal components of the first prototype. Modifying the design results in a modified design that is the configuration for the implantable medical device.

主权项

1. A method of manufacturing an implantable medical device having reduced MRI image distortion comprising:
producing an implantable medical device having a configuration that comprises a housing and a plurality internal components disposed within the housing; wherein the configuration is based upon a design process that includes:
for at least two internal components, identifying their magnetic permeabilities; andpositioning the at least two internal components proximate each other if they have opposite magnetic permeabilities, or spreading apart the at least two internal components from each other within the housing if they are both diamagnetic or both paramagnetic.