A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 25/095 (2006.01) A61B 8/08 (2006.01) G01S 5/22 (2006.01) A61B 19/00 (2006.01) G01S 7/52 (2006.01)
Patent
CA 2249030
A catheter tracking system as depicted in Figure 1 for locating and tracking a catheter head 16 with reference to a part of the human or animal body 1. The catheter tracking system comprising a catheter 10 having a catheter head 16 which is arranged to be conveyed through the human or animal body to a desired location, a plurality of spaced apart transducers at least one of which is disposed on the catheter 18, and at least two further transducers are disposed at predetermined reference positions 19 in and/or around the human or animal body, and a signal processing unit 22 which operates to energise the plurality of transducers 18,19, and in accordance with a time of flight of signals between the reference transducers 19 and the transducer disposed on the catheter 18 to determine the location of the catheter head 16 with respect to the reference transducers. Said energised signals are such that they consist of predetermined waveforms which when analysed by said signal processing unit serves to increase an accuracy with which said catheter head location is determined.
Borden Ladner Gervais Llp
Roke Manor Research Limited
LandOfFree
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