Position sensing system with integral location pad and position display
First Claim
1. Apparatus for performing a medical procedure on a tissue within a body of a subject, comprising:
- a wireless tag configured to be fixed to the tissue and comprising a first sensor coil;
a medical device having a second sensor coil fixed to the medical device for use in performing the procedure; and
a processing and display unit, comprising;
a plurality of radiator coils, which generate electromagnetic fields in a vicinity of the tissue, thereby causing a first current and a second currents to flow, respectively, in the first sensor coil of the wireless tag and the second sensor coil of the medical device;
processing circuitry for receiving a first signal and a second signal from the wireless tag and from the medical device, respectively, indicative of the first current and the second current, and to process the signals so as to determine position and orientation coordinates of the tag relative to the medical device;
a display, coupled to the processing circuitry so as to present a visual indication to an operator of the medical device of a position and orientation of the medical device relative to the tag; and
a case, containing the plurality of radiator coils, processing circuitry and display as an integral unit.
1 Assignment
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Accused Products
Abstract
Apparatus for performing a medical procedure on a tissue within a body of a subject includes a wireless tag which is fixed to the tissue and includes a first sensor coil. A second sensor coil is fixed to a medical device for use in performing the procedure. An integral processing and display unit includes a plurality of radiator coils, along with processing circuitry and a display. The radiator coils generate electromagnetic fields in a vicinity of the tissue, thereby causing currents to flow in the sensor coils. The processing circuitry processes the currents so as to determine coordinates of the tag relative to the medical device. The display is driven by the processing circuitry so as to present a visual indication to an operator of the medical device of an orientation of the device relative to the tag.
327 Citations
17 Claims
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1. Apparatus for performing a medical procedure on a tissue within a body of a subject, comprising:
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a wireless tag configured to be fixed to the tissue and comprising a first sensor coil; a medical device having a second sensor coil fixed to the medical device for use in performing the procedure; and a processing and display unit, comprising; a plurality of radiator coils, which generate electromagnetic fields in a vicinity of the tissue, thereby causing a first current and a second currents to flow, respectively, in the first sensor coil of the wireless tag and the second sensor coil of the medical device; processing circuitry for receiving a first signal and a second signal from the wireless tag and from the medical device, respectively, indicative of the first current and the second current, and to process the signals so as to determine position and orientation coordinates of the tag relative to the medical device; a display, coupled to the processing circuitry so as to present a visual indication to an operator of the medical device of a position and orientation of the medical device relative to the tag; and a case, containing the plurality of radiator coils, processing circuitry and display as an integral unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for performing a medical procedure on a tissue within a body of a subject, comprising:
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fixing a wireless tag to the tissue, the tag comprising a first sensor coil; coupling a second sensor coil to a medical device for use in performing the procedure; and placing an integral processing and display unit in a location adjacent to the body and in proximity to the tissue, the unit comprising the following elements within a common package; a plurality of radiator coils, which generate electromagnetic fields in a vicinity of the tissue, thereby causing a first current and a second currents to flow, respectively, in the first sensor coil of the wireless tag and the second sensor coil of the medical device; processing circuitry, adapted to receive a first signal and a second signal from the wireless tag and from the medical device, respectively, indicative of the first current and the second current, and to process the signals so as to determine position and orientation coordinates of the tag relative to the medical device; and a display, coupled to the processing circuitry so as to present a visual indication to an operator of the medical device of a position and orientation of the medical device relative to the tag; and a case, containing the radiator coils, processing circuitry and display as an integral unit; and generating electromagnetic fields in a vicinity of the tissue with the plurality of radiator coils; performing the medical procedure on the tissue by using the medical device relative to the wireless tag; receiving the first signal and the second signal from the wireless tag and from the medical device, respectively, with the processing circuitry and processing the first signal and the second signal so as to determine position and orientation coordinates of the wireless tag relative to the medical device; and displaying a visual indication of the position and orientation of the medical device relative to the tag to an operator. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification