Anatomical tracking using optical and non-optical sensors
AssigneeStryker Corporation
InventorChunwu Wu
Life of this patent
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Abstract
Surgical systems and methods involve an anatomy tracker to be coupled to a patient anatomy. The anatomy tracker includes optical markers and a non-optical sensor. A navigation system includes a camera unit that can track a pose of the anatomy tracker based on optical detection of the optical markers. The navigation system detects a condition wherein at least one of the optical markers is blocked from optical detection by the camera unit. In response to detection of the condition, the navigation system utilizes readings from the non-optical sensor to track the pose of the anatomy tracker.
Claims20
A surgical system, comprising:
- an anatomy tracker configured to be coupled to a patient anatomy, the anatomy tracker comprising optical markers and a non-optical sensor;
- and
- a navigation system comprising a camera unit, wherein the navigation system is configured to:
- track a pose of the anatomy tracker based on optical detection of the optical markers by the camera unit;
- detect a condition wherein at least one of the optical markers is blocked from optical detection by the camera unit;
- and
- in response to detection of the condition, utilize readings from the non-optical sensor to track the pose of the anatomy tracker.
A method of operating a surgical system, the surgical system including an anatomy tracker configured to be coupled to a patient anatomy, the anatomy tracker comprising optical markers and a non-optical sensor and a navigation system comprising a camera unit, the method comprising:
- tracking, with the navigation system, a pose of the anatomy tracker by optically detecting the optical markers by the camera unit;
- detecting, with the navigation system, a condition wherein at least one of the optical markers is blocked from optical detection by the camera unit;
- and
- in response to detecting the condition, utilizing, with the navigation system, readings from the non-optical sensor for tracking the pose of the anatomy tracker.
Dependencies are inferred from the claim text.