An intelligent mannequin based system with real-time view of regional ophthalmic blocks

摘要

In this paper, an ophthalmic anesthetic training system with two cameras integrated in it to provide a real-time visual feedback to the trainee is presented. The mannequin developed uses anatomically accurate ocular structures and the trainee is able to see the needle and ocular structures in real-time on a monitor, during the training. Other than the mannequin with integrated camera system, a virtual instrument has been developed to acquire the images, to process and to automatically capture the required information from the images from the cameras. The system is developed in such a way that when a trainee practices using the proposed system, it detects and tracks the needle tip position automatically using an appropriate algorithm. Then, it shows the erroneous and correct positions within the orbital cavity to the trainee and helps him/her to improve. Since the entire training session as observed by the two wisely positioned cameras in the mannequin can be recorded, the same can be reviewed by an expert at any point of time and give the feedback to the trainee. The system developed will be very useful for training the Anesthetists on safely performing the ophthalmic anesthesia blocks.