scholarly journals Design Process of a New Lighting Robotic Arm for Operating Room

Author(s):  
Juan Sandoval ◽  
Laurence Nouaille ◽  
Gérard Poisson ◽  
Yves Parmantier ◽  
Benoit Magnain
Author(s):  
J. Sandoval ◽  
L. Nouaille ◽  
G. Poisson ◽  
Y. Parmantier

Author(s):  
Martha Kafuko ◽  
Ishwar Singh ◽  
Tom Wanyama

Automation systems are generally made upof three main subsystems, namely mechanical, electricaland software. The interactions among these componentsaffect the integrated system in terms of reliability, quality,scalability, and cost. Therefore, it is imperative that thethree components of automation systems are designedconcurrently through an integrated design paradigm.This leads to the need to teach integrated design conceptsto students in programs such as process automation,electrical and computer engineering, and mechanicalengineering. However, due to the time constraint, it isalmost impossible to run full integrated design classprojects. Therefore, instructors have to decide on theparts of the design process that their class projects haveto focus on, and the parts that have to be reviewed for thecompleteness of the integrated design process. In thispaper we present the design and implementation of amicrocontroller based, 3D printable, low cost robotic armsuitable for teaching integrated design. Moreover, thepaper presents how the robotic arm design is used in anintegrated design project of an Industrial Networks andControllers course. Since the focus of this course is theelectrical and software subsystems of the robotic arm,and we do not have enough time to do a full design,students review the design of the robotic arm presented inthis paper and use it to either 3D print the robotic arm orpurchase the mechanical subsystem of the robotic armthat meets the specification.


Author(s):  
Thomas D. James ◽  
Craig R. Carignan

The design process is examined for retrofitting a robotic arm exoskeleton with a three-axis wrist for enhanced teleoperation. Exoskeleton wrist design is particularly challenging due to the need to incorporate three actuated joints into a compact volume, while maintaining a large range of motion. The design process was greatly facilitated by the development of a new visualization method which enabled the designer to examine the interactions between the exoskeleton and its operator in the same virtual workspace. This allowed the designer to evaluate the exoskeleton’s range of motion and ergonomic properties, while also adding task visualization functionality. Future applications of the exoskeleton in telepresence will also be discussed.


2016 ◽  
Vol 138 (08) ◽  
pp. 44-49
Author(s):  
Hai-Jun Su ◽  
Carlos E. Castro

This article is a study of various aspects of design of DNA nanorobots. When designed properly, DNA folds into tiny devices that move like macroscopic machines. Researchers have built a large and growing variety of complex DNA origami structures, including nanotubes; nanopores; and templates for proteins, nanoparticles, small molecules, and carbon nanotubes. In order to design the motion of a robotic arm or other macroscopic mechanism, engineers use the principles of kinematics; the same principles have been used to design DNA origami mechanisms. The design process for DNA origami mechanisms is still too cumbersome and error-prone, often requiring costly design iterations. New software that combines the capabilities of Computer Aided Engineering for DNA Origami (CANDO) and CANDO would streamline the process, creating a CAD-like program that would allow mechanical engineers untrained in biology to design DNA origami parts and mechanisms. Researchers envision a nanoscale equivalent of a walking robot that can travel from one position to another, a robotic manipulator or Stewart-Gough six-axis platform to precisely position molecules for specific tasks, and a mechanism like the crank-slider for injecting drugs into individual cells.


Author(s):  
J. D. Shelburne ◽  
Peter Ingram ◽  
Victor L. Roggli ◽  
Ann LeFurgey

At present most medical microprobe analysis is conducted on insoluble particulates such as asbestos fibers in lung tissue. Cryotechniques are not necessary for this type of specimen. Insoluble particulates can be processed conventionally. Nevertheless, it is important to emphasize that conventional processing is unacceptable for specimens in which electrolyte distributions in tissues are sought. It is necessary to flash-freeze in order to preserve the integrity of electrolyte distributions at the subcellular and cellular level. Ideally, biopsies should be flash-frozen in the operating room rather than being frozen several minutes later in a histology laboratory. Electrolytes will move during such a long delay. While flammable cryogens such as propane obviously cannot be used in an operating room, liquid nitrogen-cooled slam-freezing devices or guns may be permitted, and are the best way to achieve an artifact-free, accurate tissue sample which truly reflects the in vivo state. Unfortunately, the importance of cryofixation is often not understood. Investigators bring tissue samples fixed in glutaraldehyde to a microprobe laboratory with a request for microprobe analysis for electrolytes.


2009 ◽  
Author(s):  
Sadie F. Dingfelder
Keyword(s):  

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