System and methods for tracking robotically controlled medical instruments
Systems and methods are described herein for tracking an elongate instrument or other medical instrument in an image.
1. A robotic system configured to manipulate a tool within a patient's anatomy, the system comprising:
the tool comprising a shape sensor that senses a shape of at least a portion of the tool while within the patient's anatomy;
a robotic drive system comprising at least one actuator, the robotic drive system coupled to the tool and configured to articulate the tool within the patient's anatomy and
a controller configured to register a sensor reference frame and a 3-dimensional (3D) model, reference frame based on the shape of the tool and features of a 3D model of the patient's anatomy, the controller also being configured to direct the robotic drive system based on the registration.
2. The robotic system of claim 1 , wherein the controller is further configured to combine a plurality of discrete registrations to produce a combined registration between the sensor reference frame and the 3D model reference frame to produce a plurality of signals to direct the robotic drive system based on the combined registration.
3. The robotic system of claim 1 , wherein the shape sensor comprises at least one optical fiber.
4. The robotic system of claim 3 , wherein the controller is further configured with an algorithm to match a curved shape of the tool determined by the at least one optical fiber with a corresponding shape in the 3D model.
5. The robotic system of claim 3 , wherein the algorithm is one of an automated geometric search and a mathematical optimization technique.
6. The robotic system of claim 3 , wherein the image is one of a pre-operative anatomical image and an intra-operative image.
7. The robotic system of claim 3 , wherein the 3D model reference frame comprises a fluoroscopic model comprising a plurality of fluoroscopic images.
8. The robotic system of claim 3 , wherein the 3D model is derived from an imaging device.
9. The robotic system of claim 3 , wherein the 3D model is derived from Computed Tomography (CT).
10. The robotic system of claim 3 , wherein the controller is configured to register the sensor reference frame and 3D model reference frame at least manually, semi-automatically, or automatically.
11. A system configured to control a medical device within in a patient's anatomy for performing a procedure in the patient's anatomy, the system comprising:
a user input device;
an actuator configured to articulate the medical device with respect to the patient's anatomy, and
a controller configured to receive a signal from a shape sensor positioned on the medical device that can sense a shape of at least a portion of the medical device while in the patient's anatomy, the controller also configured to register a sensor reference frame and a 3-dimensional (3D) model reference frame based on the shape of the medical device and features of a 3D model of the patient's anatomy.
12. The system of claim 11 , wherein the shape sensor comprises at least one optical fiber.
13. The system of claim 12 , wherein the controller is further configured with an algorithm to match a curved shape of the medical device determined by the at least one optical fiber with a corresponding shape in the 3D model.
14. The system of claim 13 , wherein the algorithm is one of an automated geometric search and a mathematical optimization technique.
15. The system of claim 11 , wherein the 3D model is one of a pre-operative anatomical image and an intra-operative image.
16. The system of claim 11 , wherein the 3D model reference frame comprises a fluoroscopic model comprising a plurality of fluoroscopic images.
17. The system of claim 11 , wherein the 3D model is derived from an imaging device.
18. The system of claim 11 , wherein the 3D model is derived from Computed Tomography (CT).
19. The system of claim 11 , wherein the controller is configured to register the sensor reference frame and 3D model reference frame at least manually, semi-automatically, or automatically.