System utilizing radio frequency signals for tracking and improving navigation of slender instruments during insertion in the body
First Claim
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1. A navigation system for invasive medical procedures, comprising:
- an RF steerable medical instrument that is mounted on an end of arm tool, the medical instrument being adapted to be inserted into a human body along an axis of insertion;
at least one radio frequency (RF) transmitter affixed to a distal end and on a side of the medical instrument, said RF transmitter capable of emitting energy sufficient to ablate abutting tissue;
a plurality of RF receivers that are adapted to receive RF signals emitted from the RF transmitter;
a computational device that is operatively coupled to the plurality of RF receivers, the computational device being adapted to cause a visual image of a desired portion of a human body to be shown on a display and to overlay on the visual image an indication of the location of the medical instrument within the human body based on analysis of the information received from the RF receivers; and
a robotic controller that is operatively coupled to the computational device and the end of arm tool, the controller configured to steer the medical instrument to desired locations within a human body by selectively activating the RF transmitter to emit energy in an amount sufficient to control the degree of deflection of the medical instrument lateral to the axis of insertion.
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Abstract
The present invention concerns a system for utilizing radio frequency signals to dynamically determine the location of a medical device throughout a procedure and to improve navigation of the medical device. For these purposes, a plurality of RF receivers are mounted at operative locations in the operating room and operate on the same clock signal. The system also utilizes a diagnostic medical image such as an MRI, and overlays the position feedback signal on the image. This allows, for example, a surgeon to pick a desired spot on the diagnostic image, and then cause a robotic arm driven device to be moved to that particular spot inside the human body.
90 Citations
15 Claims
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1. A navigation system for invasive medical procedures, comprising:
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an RF steerable medical instrument that is mounted on an end of arm tool, the medical instrument being adapted to be inserted into a human body along an axis of insertion; at least one radio frequency (RF) transmitter affixed to a distal end and on a side of the medical instrument, said RF transmitter capable of emitting energy sufficient to ablate abutting tissue; a plurality of RF receivers that are adapted to receive RF signals emitted from the RF transmitter; a computational device that is operatively coupled to the plurality of RF receivers, the computational device being adapted to cause a visual image of a desired portion of a human body to be shown on a display and to overlay on the visual image an indication of the location of the medical instrument within the human body based on analysis of the information received from the RF receivers; and a robotic controller that is operatively coupled to the computational device and the end of arm tool, the controller configured to steer the medical instrument to desired locations within a human body by selectively activating the RF transmitter to emit energy in an amount sufficient to control the degree of deflection of the medical instrument lateral to the axis of insertion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification