World Haptics Conference. World Haptics Conference最新文献_第2页

MR-compatible biopsy needle with enhanced tip force sensing. 具有增强尖端力传感的磁共振兼容活检针。

World Haptics Conference. World Haptics Conference Pub Date : 2013-04-01 DOI: 10.1109/WHC.2013.6548393

Santhi Elayaperumal, Jung Hwa Bae, David Christensen, Mark R Cutkosky, Bruce L Daniel, Joannes M Costa, Richard J Black, Fereydoun Faridian, Behzad Moslehi

引用次数: 31

Natural Variation in Skin Thickness Argues for Mechanical Stimulus Control by Force Instead of Displacement. 皮肤厚度的自然变化主张用力而不是位移来控制机械刺激。

World Haptics Conference. World Haptics Conference Pub Date : 2013-01-01 DOI: 10.1109/WHC.2013.6548484

Yuxiang Wang, Kara L Marshall, Yoshichika Baba, Ellen A Lumpkin, Gregory J Gerling

{"title":"Natural Variation in Skin Thickness Argues for Mechanical Stimulus Control by Force Instead of Displacement.","authors":"Yuxiang Wang, Kara L Marshall, Yoshichika Baba, Ellen A Lumpkin, Gregory J Gerling","doi":"10.1109/WHC.2013.6548484","DOIUrl":"https://doi.org/10.1109/WHC.2013.6548484","url":null,"abstract":"The neural response to touch stimuli is influenced by skin properties as well as the delivery of stimuli. Here, we compare stimuli controlled by displacement and force, and analyze the impact on firing rates of slowly adapting type I afferents as skin thickness and elasticity change. Uniaxial compression tests were used to measure the mechanical properties of mouse hind limb skin (n=5), resulting in a range of skin thickness measurements (211.6-530.6 μm) and hyper- and visco-elastic properties (average coefficient of variation=0.27).Values were integrated to an axisymmetric finite element model using an Ogden strain energy function. This calculated the propagation of surface loads to tactile end-organ locations, where maximum compressive stress and its rate were sampled and linearly regressed to firing rate. For the observed range of skin thickness, firing response was predicted under both force and displacement control of a ramp-and-hold stimulus. Over the ramp phase of stimulation, the variance in predicted firing rate was higher under displacement than under force control (22.2versus 4.9 Hz) with a similar trend in the sustained phase of stimulation (4.6versus1.3Hz). Given that skin thickness varies significantly between specimens, for human skin perhaps seven more so than for mice, the use of force control is predicted to decrease experimental variance in neurophysiological and psychophysical responses.","PeriodicalId":75335,"journal":{"name":"World Haptics Conference. World Haptics Conference","volume":"2013 ","pages":"645-650"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/WHC.2013.6548484","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32092928","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}

引用次数: 6

Discriminating Tissue Stiffness with a Haptic Catheter: Feeling the Inside of the Beating Heart. 用触觉导管辨别组织硬度:感受跳动的心脏内部。

World Haptics Conference. World Haptics Conference Pub Date : 2011-01-01 DOI: 10.1109/WHC.2011.5945454

Samuel B Kesner, Robert D Howe

{"title":"Discriminating Tissue Stiffness with a Haptic Catheter: Feeling the Inside of the Beating Heart.","authors":"Samuel B Kesner, Robert D Howe","doi":"10.1109/WHC.2011.5945454","DOIUrl":"https://doi.org/10.1109/WHC.2011.5945454","url":null,"abstract":"Catheter devices allow physicians to access the inside of the human body easily and painlessly through natural orifices and vessels. Although catheters allow for the delivery of fluids and drugs, the deployment of devices, and the acquisition of the measurements, they do not allow clinicians to assess the physical properties of tissue inside the body due to the tissue motion and transmission limitations of the catheter devices, including compliance, friction, and backlash. The goal of this research is to increase the tactile information available to physicians during catheter procedures by providing haptic feedback during palpation procedures. To accomplish this goal, we have developed the first motion compensated actuated catheter system that enables haptic perception of fast moving tissue structures. The actuated catheter is instrumented with a distal tip force sensor and a force feedback interface that allows users to adjust the position of the catheter while experiencing the forces on the catheter tip. The efficacy of this device and interface is evaluated through a psychophyisical study comparing how accurately users can differentiate various materials attached to a cardiac motion simulator using the haptic device and a conventional manual catheter. The results demonstrate that haptics improves a user's ability to differentiate material properties and decreases the total number of errors by 50% over the manual catheter system.","PeriodicalId":75335,"journal":{"name":"World Haptics Conference. World Haptics Conference","volume":"2011 ","pages":"13-18"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/WHC.2011.5945454","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32721222","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}

引用次数: 27

An Experimentally Verified Model of the Perceived 'Coldness' of Objects 一个实验验证的感知物体“冷”的模型

World Haptics Conference. World Haptics Conference Pub Date : 2007-03-22 DOI: 10.1109/WHC.2007.21

W. B. Tiest

引用次数: 12