Patent ID: 11949545
Assignee: ST. JUDE MEDICAL INTERNATIONAL HOLDING S.á R.L.
Field: Medical technology (Instruments)
Classification: CPC H  A  G | IPC A  G  H

Claim 10:
11. A system for determining a current position of an invasive medical device within a patient's body, comprising:
a positioning system configured to acquire, from a first localization sensor associated with the medical device, a first series of position readings over a time interval representing a first movement of the first localization sensor over the time interval, the positioning system being further configured to acquire, from a second localization sensor associated with the medical device, a second series of position readings over the time interval representing a second movement of the second localization sensor over the time interval;
a control unit including a first function block configured to determine a respective weighting factor associated with the first and second movements wherein the weighting factors correspond to a respective correlation level of the first and second movements relative to a motion of the medical device, the first function block being further configured to generate a function comprising a weighted summation, using the determined weighting factors, of individual displacement vectors respectively attributed to the first and second movements; and
wherein the control unit further includes a second function block configured to determine the current position of the medical device using a prior determined position of the medical device and the generated function.