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Abstract

A branch vessel in a human patient is located using in vivo tracked field sensors where in one variation the sensor positions can be located by determining the positions of the sensors relative to a plurality of magnetic field sources of known location. This approach is used, for example, in locating the opening in a renal artery and positioning the proximal end of the AAA stent-graft adjacent to the opening. According to another embodiment, field sensors in combination with signal generators are placed in vivo to locate vasculature aspects. In a further embodiment, an in vivo sensor is positioned in a deployed prosthesis to create a reference for a prosthetic member having a sensor to track to during cannulation of the deployed prosthesis with the prosthetic member.

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First Claim