Abstract
Background: Current laparoscopic surgical robots are teleoperated, which requires high fidelity differential motions but does not require absolute accuracy. Emerging applications, including image guidance and automation, require absolute accuracy. The absolute accuracy of the da Vinci Xi robot has not yet been characterized or compared to the Si system, which is now being phased out. This study compares the accuracy of the two. Methods: We measure robot tip positions and encoder values assessing accuracy with and without robot calibration. Results: The Si is accurate if the setup joints are not moved but loses accuracy otherwise. The Xi is always accurate. Conclusion: The Xi can achieve submillimetric average error. Calibration improves accuracy, but excellent baseline accuracy of the Xi means that calibration may not be needed for some applications. Importantly, the external tracking systems needed to account for setup joint error in the Si are no longer required with the Xi.
| Original language | English |
|---|---|
| Pages (from-to) | 1-10 |
| Number of pages | 10 |
| Journal | International Journal of Medical Robotics and Computer Assisted Surgery |
| Volume | 16 |
| Issue number | 6 |
| DOIs | |
| State | Published - Dec 2020 |
| Externally published | Yes |
Funding
This research was supported by National Institutes of Health under grant R01‐EB023717. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. The authors would like to thank Robert Galloway and J. Michael Fitzpatrick for technical guidance and Omid Mohareri, Simon Dimaio, and Intuitive Surgical for providing the da Vinci Application Programming Interface necessary to interface with the clinical da Vinci systems.
Keywords
- image-guided surgery
- surgical automation
- surgical robot calibration
- surgical robotics