scholarly journals Objective evaluation of surgical competency for minimally invasive surgery with a collection of simple tests

2016 ◽  
pp. 45-50
Author(s):  
Eliana Maria González Neira ◽  
Claudia Patricia Jiménez Mendoza ◽  
Daniel R Suarez ◽  
Saúl Rúgeles Quintero

Objective: This study aims at determining if a collection of 16 motor tests on a physical simulator can objectively discriminate and evaluate practitioners' competency level, i.e. novice, resident, and expert. Methods: An experimental design with three study groups (novice, resident, and expert) was developed to test the evaluation power of each of the 16 simple tests. An ANOVA and a Student Newman-Keuls (SNK) test were used to analyze results of each test to determine which of them can discriminate participants' competency level. Results: Four of the 16 tests used discriminated all of the three competency levels and 15 discriminated at least two of the three groups (α= 0.05). Moreover, other two tests differentiate beginners' level from intermediate, and other seven tests differentiate intermediate level from expert. Conclusion: The competency level of a practitioner of minimally invasive surgery can be evaluated by a specific collection of basic tests in a physical surgical simulator. Reduction of the number of tests needed to discriminate the competency level of surgeons can be the aim of future research.

Author(s):  
Sajid Nisar ◽  
Osman Hasan

Minimally Invasive Surgery (MIS) has revolutionized the world of surgery. On one hand it offered many revolutionary advantages, on the other hand it proved to be a tedious and sophisticated technique for surgeons. Telesurgical robotics came forward to assist surgeons and made surgeries even further innovative, safer and efficacious. Kinematics - a fundamental and foremost design step - acts as the lynchpin of performance of a surgical robot. It plays a decisive role and defines the capabilities and viability of a robot vis-à-vis its application. This chapter tries to understand the kinematic design approaches in practice so far and discusses their features and potential shortcomings. Some of the notable kinematic structures are explained in detail and an all-inclusive consideration to the kinematic aspects of the existing designs has been given. Based on the key challenges identified, possible solutions are suggested which is followed by future research directions and conclusion.


Author(s):  
Sajid Nisar ◽  
Osman Hasan

Minimally invasive surgery (MIS) has revolutionized the world of surgery. On one hand, it offered many revolutionary advantages; on the other hand, it proved to be a tedious and sophisticated technique for surgeons. Telesurgical robotics came forward to assist surgeons and made surgeries even further innovative, safer, and efficacious. Kinematic—a fundamental and foremost design step—acts as the lynchpin of performance of a surgical robot. It plays a decisive role and defines the capabilities and viability of a robot vis-à-vis its application. This chapter tries to understand the kinematic design approaches in practice so far and discusses their features and potential shortcomings. Some of the notable kinematic structures are explained in detail, and an all-inclusive consideration to the kinematic aspects of the existing designs has been given. Based on the key challenges identified, possible solutions are suggested, which is followed by future research directions and conclusion.


Author(s):  
Xiaoli Zhang ◽  
Carl A. Nelson ◽  
Songpo Li ◽  
Rodney Ridley ◽  
Daniel B. Rukstalis

In this paper, a novel simple robotic system is developed for surgical training in minimally invasive surgery (MIS). The robot automatically measures motion data of instruments in real time using internal encoders, without additional sensing mechanisms. Kinematics equations are integrated in the control software to map motor motion to the instrument tip motion. These recorded motion data then can be analyzed in the computer system for objective evaluation using well established criteria. A neural network algorithm is employed in real time as the observer of weight and inertia effects which are compensated through motor control. Experiment results show that this compact robot provides good stability and smooth motion while guiding instruments using surgeon input. The tracking resolution is sufficient for objective evaluation purposes. The robot combines the realistic feel of MIS instruments with the capability of the computer to tabulate objective measures of performance and skill. Its flexibility as a training instrument can be of great benefit in both providing surgeons with much-needed practice and assessing the outcomes of that practice.


2004 ◽  
Vol 171 (4S) ◽  
pp. 448-448
Author(s):  
Farjaad M. Siddiq ◽  
Patrick Villicana ◽  
Raymond J. Leveillee

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