Precise laser incisions, corrected for patient respiration with an intelligent aiming system
✍ Scribed by Reinisch, Lou; Mendenhall, Marcus H.; Ossoff, Robert H.
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 170 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0196-8092
No coin nor oath required. For personal study only.
✦ Synopsis
Background and Objective: Patient motion due to respiration and blood flow can negatively affect the precision of a laser incision.
Study Design/Materials and Methods:
The video image of the surgical field is monitored by a computer system, and trends in the motion are ''learned'' by the computer. The laser beam is then adjusted to compensate for predicted motion. Occasional erratic motion sometime causes a false prediction. In this event, the prediction is corrected with real-time feedback. Results: Our experience shows that even with occasional false predictions, the motion compensation still gives a better incision. The surgeon always maintains control of the laser. The net effect of the intelligent aiming system is to subtract away nearly all patient motions. Conclusion: Laser surgery can be performed with greater accuracy and reduced unwanted tissue damage with the predictive tracking of motion.