Motion--Monitoring method and system for medical devices
First Claim
1. A movable medical imaging device having sensors for measuring the position and orientation of the movable device, the device comprising:
- a first sensor disposed on the movable device for measuring a first position and orientation (P/O) parameter; and
a second sensor of a different type than said first sensor, the second sensor disposed on the movable device wherein the second sensor measures a second P/O parameter that is different from the first P/O parameter.
3 Assignments
0 Petitions
Accused Products
Abstract
A system and method for tracking the position and orientation of a movable medical imaging device using a first and second sensor disposed on the device. The second sensor is of a different type than the first sensor and measures a P/O parameter different from that of the first sensor. The system and method also include techniques for recalibrating sensors using measurements from other sensors and improving the measurements made by some sensors using measurements from other sensors. The system and method also include measuring the position of a medical implement relative to a movable medical imaging device by providing a first and second subsystem on the medical implement and a third and fourth subsystem on the movable medical imaging device. The first subsystem has a sensor of a first type and the second subsystem has a sensor of a second type different from the sensor of the first type. The third subsystem has a sensor of a third type and the fourth subsystem has a sensor of a fourth type different from the third type.
616 Citations
66 Claims
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1. A movable medical imaging device having sensors for measuring the position and orientation of the movable device, the device comprising:
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a first sensor disposed on the movable device for measuring a first position and orientation (P/O) parameter; and a second sensor of a different type than said first sensor, the second sensor disposed on the movable device wherein the second sensor measures a second P/O parameter that is different from the first P/O parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for tracking the position and orientation a movable medical imaging device, the system comprising:
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a first sensor disposed on the movable device wherein the first sensor measures a first position and orientation (P/O) parameter; a second sensor of a different type than said first sensor, the second sensor disposed on the movable device wherein the second sensor measures a second P/O parameter; a transmit array located remotely from the movable device; and a computer coupled to the transmit array, the first sensor and the second sensor wherein the computer instructs the transmit array to transmit signals that are received by the first sensor and the computer receives signals from the first sensor indicative of the first P/O parameter and from the second sensor indicative of the second P/O parameter. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A position and orientation system for tracking spatial parameters of a medical implement, the system comprising:
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a first subsystem disposed on the medical implement having a sensor of a first type for measuring at least one degree of freedom of the medical implement; and a second subsystem disposed on the medical implement having a sensor of a second type that is different from the sensor of the first type for measuring at least one degree of freedom of the medical implement. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A position and orientation system for tracking the relative positions of a medical implement with respect to a medical imaging device, the system comprising:
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a first subsystem disposed on the medical implement for measuring at least one degree of freedom of the medical implement and a second subsystem different from the first subsystem disposed on the medical implement for measuring at least one degree of freedom of the medical implement; a third subsystem disposed on the medical imaging device for measuring at least one degree of freedom of the medical imaging device and a fourth subsystem different from the third subsystem disposed on the medical imaging device for measuring at least one degree of freedom of the medical imaging device; and a computer coupled to the first, second, third and fourth subsystem which receives measured signals from the first, second, third and fourth subsystems and computes the relative position of the medical implement with respect to the medical imaging device. - View Dependent Claims (51, 52, 53)
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54. A method of tracking the position and orientation of a movable medical imaging device, the method comprising the steps of:
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providing a first sensor disposed on the movable medical imaging device; providing a second sensor of a different type than the first sensor, the second sensor disposed on the movable device; measuring a first Position and Orientation (P/O) parameter with the first sensor; and measuring a second P/O parameter with the second sensor. - View Dependent Claims (55, 56)
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57. A method of tracking the position and orientation of a movable medical imaging device, the method comprising the steps of:
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measuring the position and orientation of the medical imaging device; transmitting the position and orientation measurements to an imaging system; measuring subframe data; transmitting subframe data to the imaging system; tagging the transmitted subframe data with a time stamp; transmitting the time stamped transmitted subframe data; storing the subframe data, time stamp and position and orientation measurements; calculating the origin position of the subframe data, the orientation of the subframe data and transmit time for the subframe data. - View Dependent Claims (58, 59, 60, 61, 62, 63, 64)
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65. A method of tracking the position and orientation of a movable medical imaging device, the method comprising any sequence of the steps of:
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providing a first sensor disposed on the movable medical imaging device; providing a second sensor of a different type than the first sensor, the second sensor disposed on the movable medical imaging device; measuring the position and orientation of the medical imaging device using said first and second sensors; measuring subframe data; and associating the measured position and orientation with the subframe data. - View Dependent Claims (66)
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Specification