Ali Ebrahimi, Changyan He, Niravkumar Patel, Marin Kobilarov, Peter Gehlbach, Iulian Iordachita
{"title":"Sclera Force Control in Robot-assisted Eye Surgery: Adaptive Force Control vs. Auditory Feedback.","authors":"Ali Ebrahimi, Changyan He, Niravkumar Patel, Marin Kobilarov, Peter Gehlbach, Iulian Iordachita","doi":"10.1109/ISMR.2019.8710205","DOIUrl":"https://doi.org/10.1109/ISMR.2019.8710205","url":null,"abstract":"<p><p>Surgeon hand tremor limits human capability during microsurgical procedures such as those that treat the eye. In contrast, elimination of hand tremor through the introduction of microsurgical robots diminishes the surgeons tactile perception of useful and familiar tool-to-sclera forces. While the large mass and inertia of eye surgical robot prevents surgeon microtremor, loss of perception of small scleral forces may put the sclera at risk of injury. In this paper, we have applied and compared two different methods to assure the safety of sclera tissue during robot-assisted eye surgery. In the active control method, an adaptive force control strategy is implemented on the Steady-Hand Eye Robot in order to control the magnitude of scleral forces when they exceed safe boundaries. This autonomous force compensation is then compared to a passive force control method in which the surgeon performs manual adjustments in response to the provided audio feedback proportional to the magnitude of sclera force. A pilot study with three users indicate that the active control method is potentially more efficient.</p>","PeriodicalId":72029,"journal":{"name":"... International Symposium on Medical Robotics. International Symposium on Medical Robotics","volume":"2019 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/ISMR.2019.8710205","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37902343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Di Wu, Gang Li, Niravkumar Patel, Jiawen Yan, Reza Monfaredi, Kevin Cleary, Iulian Iordachita
{"title":"Remotely Actuated Needle Driving Device for MRI-Guided Percutaneous Interventions.","authors":"Di Wu, Gang Li, Niravkumar Patel, Jiawen Yan, Reza Monfaredi, Kevin Cleary, Iulian Iordachita","doi":"10.1109/ismr.2019.8710176","DOIUrl":"https://doi.org/10.1109/ismr.2019.8710176","url":null,"abstract":"<p><p>In this paper we introduce a remotely actuated MRI-compatible needle driving device for pain injections in the lower back. This device is able to manipulate the needle inside the closed-bore MRI scanner under the control of the interventional radiologist inside both the scanner room and the console room. The device consists of a 2 degrees of freedom (DOF) needle driver and an actuation box. The 2-DOF needle driver is placed inside the scanner bore and driven by the actuation box settled at the end of the table through a beaded chain transmission. This novel remote actuation design could reduce the weight and profile of the needle driver that is mounted on the patient, as well as minimize the potential imaging noise introduced by the actuation electronics. The actuation box is designed to perform needle intervention in both manual and motorized fashion by utilizing a mode switch mechanism. A mechanical hard stop is also incorporated to improve the device's safety. The bench-top accuracy evaluation of the device demonstrated a small mean needle placement error (<i><</i> 1 mm) in a phantom study.</p>","PeriodicalId":72029,"journal":{"name":"... International Symposium on Medical Robotics. International Symposium on Medical Robotics","volume":"2019 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/ismr.2019.8710176","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38326367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Study on Structure Design and Simulation of Upper-Limb Assist Robot","authors":"Xiaolei Cao, Hui Li, Zhihong Jiang, Jianning Hua, Peng Sun, Rufen Wang","doi":"10.1109/IISR.2018.8535651","DOIUrl":"https://doi.org/10.1109/IISR.2018.8535651","url":null,"abstract":"","PeriodicalId":72029,"journal":{"name":"... International Symposium on Medical Robotics. International Symposium on Medical Robotics","volume":"332 1","pages":"303-308"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74077843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Trajectory Planning Based on Dual Torque Feedforward Control for Robot Astronaut Safe Movement on Space Station","authors":"Zhihong Jiang, Jiafeng Xu, Hui Li, Qiang Huang","doi":"10.1109/IISR.2018.8535762","DOIUrl":"https://doi.org/10.1109/IISR.2018.8535762","url":null,"abstract":"","PeriodicalId":72029,"journal":{"name":"... International Symposium on Medical Robotics. International Symposium on Medical Robotics","volume":"10 1","pages":"13-18"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78868497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Feature extraction and optimisation for sleep apnea","authors":"W. Y. Leong","doi":"10.1109/ROMA.2014.7295888","DOIUrl":"https://doi.org/10.1109/ROMA.2014.7295888","url":null,"abstract":"In this paper, the feature extraction and optimization for sleep apnea is investigated. The electrical activity of the brain along the scalp suffered from sleep apnea using Electroencephalogram (EEG) is addressed. The correlation between the EEG signals was compared to detect the features of sleep apnea. The Empirical Mode Decomposition (EMD) and Bivaiiate were adopted in this project to evaluate the extracted EEG signals. The performance of EMD has greatly improved when the number of samples was decreasing. The segmentation error analyzed in the Event Related Potential (ERP) reflected the occurrence of apnea. The delta power associated to the body autonomous system and homeostasis regulation is due to the drop of oxygen when sleep apnea happened. Using Hilbert Huang Transform, there is energy waveform in low frequencies when an apnea has happened. These can be linked to the delta power which relates to the body autonomous system and homeostasis regulation. The EMD, EEMD and Bivariate methods were compared to show key features linked with apnea for analysis purposes.","PeriodicalId":72029,"journal":{"name":"... International Symposium on Medical Robotics. International Symposium on Medical Robotics","volume":"18 4 1","pages":"200-205"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84614315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Jumahat, Constantinos Soutis, J. Mahmud, N. Ahmad
{"title":"Compressive properties of nanoclay/epoxy nanocomposites","authors":"A. Jumahat, Constantinos Soutis, J. Mahmud, N. Ahmad","doi":"10.1016/J.PROENG.2012.07.357","DOIUrl":"https://doi.org/10.1016/J.PROENG.2012.07.357","url":null,"abstract":"","PeriodicalId":72029,"journal":{"name":"... International Symposium on Medical Robotics. International Symposium on Medical Robotics","volume":"1 1","pages":"1607-1613"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91397533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}