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Journal ArticleDOI

A parallel robot to assist vitreoretinal surgery.

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TLDR
This microsurgical system that is developed has superior operability as compared to traditional manual procedure and has sufficient potential to be used clinically for vitreoretinal surgery.
Abstract
This paper describes the development and evaluation of a parallel prototype robot for vitreoretinal surgery where physiological hand tremor limits performance. The manipulator was specifically designed to meet requirements such as size, precision, and sterilization; this has six-degree-of-freedom parallel architecture and provides positioning accuracy with micrometer resolution within the eye. The manipulator is controlled by an operator with a “master manipulator” consisting of multiple joints. Results of the in vitro experiments revealed that when compared to the manual procedure, a higher stability and accuracy of tool positioning could be achieved using the prototype robot. This microsurgical system that we have developed has superior operability as compared to traditional manual procedure and has sufficient potential to be used clinically for vitreoretinal surgery.

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Citations
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Proceedings ArticleDOI

New steady-hand Eye Robot with micro-force sensing for vitreoretinal surgery

TL;DR: A new generation, cooperatively controlled microsurgery robot with a remote center-of-motion (RCM) mechanism and an integrated custom micro-force sensing surgical hook is presented and a micro- force guided cooperative control algorithm is implemented to actively guide the operator.
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From Passive Tool Holders to Microsurgeons: Safer, Smaller, Smarter Surgical Robots

TL;DR: An overview of the significant achievements in surgical robotics is provided and the current trends and future research directions of the field in making surgical robots safer, smaller, and smarter are identified.
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First-in-human study of the safety and viability of intraocular robotic surgery

TL;DR: A first-in-man study of robotic-assisted intraocular surgery shows the feasibility and safety of the robotic device for the peeling of retinal membranes and for the injection of a therapeutic under the retina.
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Topology and Constraint Analysis of Phase Change in the Metamorphic Chain and Its Evolved Mechanism

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Book ChapterDOI

Micro-force sensing in robot assisted membrane peeling for vitreoretinal surgery

TL;DR: Findings show that auditory sensory substitution decreased peeling forces in all tests, and that robotic force scaling with audio feedback is the most promising aid in reducingPeeling forces and task completion time.
References
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Journal ArticleDOI

Toward active tremor canceling in handheld microsurgical instruments

TL;DR: This work has taken the novel approach of developing a handheld instrument that senses its own movement, distinguishes between desired and undesired motion, and deflects its tip to perform active compensation of the undesired component.
Proceedings ArticleDOI

Development and Application of a New Steady-Hand Manipulator for Retinal Surgery

TL;DR: The development and initial testing of a new and optimized version of a steady-hand manipulator for retinal microsurgery that makes use of a compact wrist design that places the bulk of the robot away from the operating field, and a protocol for reliably cannulating ~80 mum OD veins using the system.
Journal ArticleDOI

Direct kinematics and assembly modes of parallel manipulators

TL;DR: This article addresses the problem of the direct kinematics of parallel manipulators and the corollary problem of their assembly modes (i.e., the different ways of assembling these mechanisms when their geometry are fixed), and introduces a more general approach.
Proceedings ArticleDOI

Physiological tremor amplitude during retinal microsurgery

TL;DR: Using an instrumented surgical tool, high-precision recordings of hand tremor were taken during vitreoretinal microsurgery to provide an important baseline for design specification and performance evaluation of engineered microsurgical devices.
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