Quantitative assessment of manual and robotic microcannulation for eye surgery using new eye model.
BACKGROUND
Microcannulation, a surgical procedure for the eye that requires drug injection into a 60-90 µm retinal vein, is difficult to perform manually. Robotic assistance has been proposed; however, its effectiveness in comparison to manual operation has not been quantified.


METHODS
An eye model has been developed to quantify the performance of manual and robotic microcannulation. The eye model, which is implemented with a force sensor and microchannels, also simulates the mechanical constraints of the instrument's movement. Ten subjects performed microcannulation using the model, with and without robotic assistance.


RESULTS
The results showed that the robotic assistance was useful for motion stability when the drug was injected, whereas its positioning accuracy offered no advantage.


CONCLUSIONS
An eye model was used to quantitatively assess the robotic microcannulation performance in comparison to manual operation. This approach could be valid for a better evaluation of surgical robotic assistance.
['Tanaka|Shinichi|S|', 'Harada|Kanako|K|', 'Ida|Yoshiki|Y|', 'Tomita|Kyohei|K|', 'Kato|Ippei|I|', 'Arai|Fumihito|F|', 'Ueta|Takashi|T|', 'Noda|Yasuo|Y|', 'Sugita|Naohiko|N|', 'Mitsuishi|Mamoru|M|']
D000818:Animals D002404:Catheterization D005123:Eye D005343:Fibrinolytic Agents D006801:Humans D008953:Models, Anatomic D023421:Models, Animal D013508:Ophthalmologic Surgical Procedures D012169:Retinal Vein D012170:Retinal Vein Occlusion D065287:Robotic Surgical Procedures D013552:Swine D015912:Thrombolytic Therapy
eye surgery microelectromechanical systems regulatory science robotic surgery