System for determining the position and orientation of a catheter
First Claim
1. Electromagnetic field detector located within a catheter, for determining the position and orientation of the catheter according to an electromagnetic field generated in the vicinity of the catheter, the catheter including a distal tip and the distal tip including a proximal side and a distal side, the electromagnetic field detector comprising:
- a ferromagnetic core having a perforation, said perforation providing communication between a first side of said ferromagnetic core and a second side of said ferromagnetic core, said first side facing said proximal side and said second side facing said distal side; and
at least one winding wound around said ferromagnetic core, said at least one winding being coupled with a position and orientation determining system, said at least one winding producing a current according to said electromagnetic field, said position and orientation determining system determining said position and orientation according to said current,wherein said ferromagnetic core increases the sensitivity of said electromagnetic field detector to said electromagnetic field, by increasing a proportionality factor between said current and said electromagnetic field.
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Accused Products
Abstract
Electromagnetic field detector located within a catheter, for determining the position and orientation of the catheter according to an electromagnetic field generated in the vicinity of the catheter, the electromagnetic field detector including a ferromagnetic core having a perforation and at least one winding wound around the ferrous core, the perforation providing communication between a first side of the ferrous core and a second side of the ferrous core, the first side facing a proximal side of the catheter and the second side facing a distal side of the catheter, the winding producing a current according to the electromagnetic field, wherein the ferrous core increases the sensitivity of the electromagnetic field detector to the electromagnetic field, by increasing a proportionality factor between the current and the electromagnetic field.
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Citations
20 Claims
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1. Electromagnetic field detector located within a catheter, for determining the position and orientation of the catheter according to an electromagnetic field generated in the vicinity of the catheter, the catheter including a distal tip and the distal tip including a proximal side and a distal side, the electromagnetic field detector comprising:
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a ferromagnetic core having a perforation, said perforation providing communication between a first side of said ferromagnetic core and a second side of said ferromagnetic core, said first side facing said proximal side and said second side facing said distal side; and at least one winding wound around said ferromagnetic core, said at least one winding being coupled with a position and orientation determining system, said at least one winding producing a current according to said electromagnetic field, said position and orientation determining system determining said position and orientation according to said current, wherein said ferromagnetic core increases the sensitivity of said electromagnetic field detector to said electromagnetic field, by increasing a proportionality factor between said current and said electromagnetic field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. Electromagnetic field detector located within a catheter, for determining the position and orientation of the catheter according to an electromagnetic field generated in the vicinity of the catheter, the catheter being incorporated with a medical operational device for performing a diagnostic or therapeutic medical operation, the electromagnetic field detector comprising:
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a ferromagnetic core having at least one adaptive feature for connecting said ferromagnetic core to said medical operational device; a mating feature to be connected to said adaptive feature, said mating feature being incorporated with said medical operational device; and at least one winding wound around said ferromagnetic core, said at least one winding being coupled with a position and orientation determining system, said at least one winding producing a current according to said electromagnetic field, said position and orientation determining system determining said position and orientation according to said current, wherein said ferromagnetic core increases the sensitivity of said electromagnetic field detector to said electromagnetic field, by increasing a proportionality factor between said current and said electromagnetic field. - View Dependent Claims (16, 17, 18, 19)
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20. Position and orientation determining system, for determining the position and orientation of a catheter, the catheter including a distal tip and the distal tip including a proximal side and a distal side, the position and orientation determining system comprising:
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an electromagnetic field generator for generating an electromagnetic field in the vicinity of said catheter; and an electromagnetic field detector located within said catheter, said electromagnetic field detector comprising; a ferromagnetic core having a perforation, said perforation providing a communication between a first side of said ferromagnetic core and a second side of said ferromagnetic core, said first side facing said proximal side and said second side facing said distal side; and at least one winding wound around said ferromagnetic core, said at least one winding producing a current according to said electromagnetic field, said position and orientation determining system determining said position and orientation according to said current, wherein said ferromagnetic core increases the sensitivity of said electromagnetic field detector to said electromagnetic field, by increasing a proportionality factor between said current and said electromagnetic field.
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Specification