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Left-handed use of surgical instruments: improved function through understanding instrument design.
J Am Vet Med Assoc
January 2025
Objective: To explain design features of scissors and surgical instruments that work against left-handed users and demonstrate how the user can adapt their technique for ambidextrous use of standard instruments.
Animals: Any species.
Methods: Standard instruments are designed for maximal efficiency with the use of a right-handed grip.
Reliability and validity of the hand-held dynamometer "NOD": a new instrument for assessment of isometric grip strength.
BMC Musculoskelet Disord
January 2025
Department of Health Sciences, University of Eastern Piedmont, 28100, Novara, Italy.
Introduction: Hand grip strength (HGS) is an important measure in a physiotherapy assessment and for this purpose it is necessary to have valid and reliable instruments to measure it. In this study we aimed at investigating the reliability, validity, and agreement of the new hand-held dynamometer NOD (OT-Bioelettronica, To-Italy) compared to Jamar® hydraulic dynamometer (JD), the gold standard.
Methods: Fifty healthy subjects were selected; 9 trials for the dominant hand and 9 trials for the non-dominant hand were administrated to each of them: 3 trials of HGS with the JD in rung #3, 3 trials with the JD-adapted-grip (like the NOD one), and 3 trials with NOD.
Factors regulating the gripping force and stiffness of 25- and 27-gauge internal limiting membrane forceps.
PLoS One
November 2024
Division of Ophthalmology, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan.
This study aimed to identify the factors affecting the gripping force and stiffness of 25-gauge and 27-gauge (25G and 27G, respectively) internal limiting membrane (ILM) forceps and to compare the effect of these factors on various ILM forceps manufactured by different companies. This study evaluated 25G and 27G ILM forceps with two different types of tip shapes, Eckardt and Maxgrip, manufactured by Alcon (A), DORC (B), VitreQ (C), and Katalyst (D). The gripping force was defined as the force required to move the ILM forceps away from a thin paper by pulling the paper.
View Article and Find Full Text PDFDesign and Modelling of Continuum Robot for Endoscopic Submucosal Dissection Surgery With Lifting Force Estimation.
Int J Med Robot
October 2024
The Engineering Research Center of Intelligent Unmanned System, Ministry of Education, Shandong University, Jinan, China.
Background: Endoscopic submucosal dissection (ESD) is an effective treatment for early-stage gastrointestinal cancers. However, traditional surgical instruments lack accuracy and force-sensing.
Methods: A new type of continuum robot for ESD is designed.
HybGrip: a synergistic hybrid gripper for enhanced robotic surgical instrument grasping.
Int J Comput Assist Radiol Surg
December 2024
Institute of Mechatronic Systems, Leibniz University Hannover, Hannover, Germany.
Purpose: A fundamental task of a robotic scrub nurse is handling surgical instruments. Thus, a gripper capable of consistently grasping a wide variety of tools is essential. We introduce a novel gripper that combines granular jamming and pinching technologies to achieve a synergistic improvement in surgical instrument grasping.
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