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US 2022/0022971 A1Published application
System and method to access lung tissue
AssigneeCovidien LP
InventorWilliam S. Krimsky
Life of this patent
Estimating the term…
Abstract
A system and method for navigating to a target site in a patient is provided. The system includes an extended working channel and a tool usable with an electromagnetic navigation system. In particular, the extended working channel and the tool contain an electromagnetic sensor configured to provide location information within a patient of the extended working channel and the tool to the electromagnetic navigation system. The distance from the tool and the target site can then be determined and displayed to a clinician on a display device.
Claims21
1-20. (canceled)
A navigation system, comprising:
- a catheter configured to be advanced through a patient's luminal network, the catheter having a first sensor and defining a lumen;
- a tool configured to be advanced through the lumen of the catheter, the tool having a second sensor;
- a controller;
- and
- a memory storing instructions, which when executed by the controller, cause the controller to:
- track a location of the first sensor;
- track a location of the second sensor when the second sensor is in a first position within a patient coordinate frame of reference and when the second sensor is in a second position within the patient coordinate frame of reference;
- determine a distance between a target and the location of the first sensor;
- determine a distance between the location of the first sensor and the location of the second sensor in the first position;
- determine a distance between the location of the second sensor in the first position within the patient coordinate frame of reference and the location of the second sensor in the second position within the patient coordinate frame of reference;
- and
- determine a distance between the location of the first sensor and the location of the second sensor in the second position by adding the distance between the location of the first sensor and the location of the second sensor in the first position and the distance between the location of the second sensor in the first position and the location of the second sensor in the second position.
9 more elements
A surgical navigation system comprising:
- a controller and a memory storing instructions, which when executed by the controller, cause the controller to:
- track a location of a first sensor;
- track a location of a second sensor when the second sensor is in a first position within a patient coordinate frame of reference and when the second sensor is in a second position within the patient coordinate frame of reference;
- determine a distance between a target and the location of the first sensor;
- determine a distance between the location of the first sensor and the location of the second sensor in the first position;
- determine a distance between the location of the second sensor in the first position within the patient coordinate frame of reference and the location of the second sensor in the second position within the patient coordinate frame of reference;
- and
- determine a distance between the location of the first sensor and the location of the second sensor in the second position by adding the distance between the location of the first sensor and the location of the second sensor in the first position and the distance between the location of the second sensor in the first position and the location of the second sensor in the second position.
5 more elements
A surgical navigation system comprising:
- a controller and a memory storing instructions, which when executed by the controller, cause the controller to:
- determine a distance between a target and a location of a first sensor;
- determine a distance between the location of the first sensor and a location of a second sensor in a first position;
- determine a distance between the location of the second sensor in the first position and a location of the second sensor in a second position;
- and
- determine a distance between the location of the first sensor and the location of the second sensor in the second position by adding the distance between the location of the first sensor and the location of the second sensor in the first position and the distance between the location of the second sensor in the first position and the location of the second sensor in the second position.
3 more elements
Dependencies are inferred from the claim text.