Development of a Laser Surgical Device with Vibration Compensation: Mechanical Design and Validation of Its Compliant Mechanism
Source abstract
Abstract
Mitigating hand tremors in surgical applications has a critical role in laser-based medical procedures. We report the development of a proof-of-concept 3 degrees of freedom (DOF) hand vibration compensation device that features a compliant mechanical structure with three stack-type piezoelectric actuators. Inspired by the Stewart-type mobile platform, the system has the capability to manipulate a laser beam in two directions. In the present work, the mechanical part of the device is designed, and its mathematical model is developed. Also, the manufacturing of the proposed platform is presented, and the precision of its parts is assessed. An in-house developed mechanical stand is designed and utilized in order to perform a static analysis of the linkage amplification mechanism. Both a finite element analysis (FEA) and experimental validations of this mechanism are performed. A good match is obtained between the results obtained with the two methods. An analysis of the errors is made in order to assess the mechanical aspects of the platform. The study lays the foundation for the further development of the mechatronic and optical parts of the system, as well as for its miniaturization.
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Research context
OpenAlex topics: Soft Robotics and Applications · Pain Management and Treatment · Prosthetics and Rehabilitation Robotics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Center of Research and Development for Mechatronics, National University of Science and Technology POLITEHNICA Bucharest, 060042 Bucharest, Romania
3OM Optomechatronics Group, Department of Measurements and Optical Electronics, Faculty of Electronics, Telecommunications, and Information Technology, Polytechnic University of Timisoara, 300006 Timisoara, Romania
Funding
Romanian IPCEI (Important Project of Common European Interest) on microelectronics · Continental Automotive Romania · National University of Science and Technology Politehnica Bucharest and University Politehnica Timisoara · PhoBioS
References (49)
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