1.Application of three-dimensional technology in assessment of burn area and treatment strategy of burns.
Wen-bo SHENG ; Guosheng DONG ; Yan WAN ; Li YAO ; Hongtai TANG ; Zhaofan XIA
Chinese Journal of Burns 2014;30(4):353-355
Accurate area assessment of a burn injury and its treatment according to its depth of injury are the foundation of burn treatment due to its complexity, and various techniques and methods have been employed to solve these problems for many years. As the demand of modern medicine calls for individualized and precise therapeutic measures, it is clear that the traditional diagnostic and treatment measures are insufficient. The flourishing development of three-dimensional (3D) technology seems to provide new research approaches and technical opporturities for burn surgery. A series of techniques such as 3D model, 3D scanning, and 3D printing may be promising in advancing burn surgery through basic research to achieve rational clinical applications in the future. In this paper, the applications and achievements of 3D technology in burn surgery in recent years are summarized.
Body Surface Area
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Burns
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diagnosis
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pathology
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therapy
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Humans
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Image Processing, Computer-Assisted
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methods
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Therapy, Computer-Assisted
2.Research of tool-path generation algorithm for NC machining dental crown restoration.
Quanping SUN ; Tongyue WANG ; Qianliang CHEN ; Ning DAI ; Wenhe LIAO ; Ning HE
Journal of Biomedical Engineering 2008;25(3):547-566
Seeing that the manual method to restore tooth has the disadvantages such as long "lead-time", assurance of quality highly depending on operator's technology, and real-time cure difficulty met by lots of dental patients coming up for tooth restoration, we put forward an algorithm of tool-path generation based on STL data model for roughing dental restoration. The algorithm can reconfigure the STL data of dental crown restoration quickly, can generates the multi-level offset wire-loop by the use of horizontal plane cutting triangle facets; and then on the basis of offset wire-loop, it can plan Zigzag and follow the contour machining tool path. The algorithm has been applied to Dental CAM software, through simulation machining, the result shows that it can not only generate interference-free tool path, but also save a lot of "lead-time" for dental restoration. Accordingly, the algorithm is of great value for reference in clinical application.
Algorithms
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Crowns
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Dental Restoration, Permanent
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methods
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Humans
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Software
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Therapy, Computer-Assisted
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methods
3.The advances of automatic drug infusion.
Haiyan TU ; Xiaodong XIE ; Chaohua WANG ; Hongliang ZHANG ; Zhirun YUAN
Journal of Biomedical Engineering 2010;27(3):684-687
The development of automatic drug delivery is reviewed in this paper. The control-relevance of models, the relevant algorithm, the system running and the simulation effect are introduced. The value for clinical application of each case is assessed. The new advances and high-lights of researches are discussed.
Algorithms
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Drug Delivery Systems
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instrumentation
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Drug Therapy, Computer-Assisted
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instrumentation
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Humans
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Infusion Pumps
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Monitoring, Physiologic
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methods
5.An intelligent stimulator based on electromyography feature extraction.
Xudong GUO ; Xiulin XU ; Dongheng ZHANG
Journal of Biomedical Engineering 2011;28(2):260-263
In order to improve the conventional stimulator with non-standard parameters and poor efficacy using the passive mode of the treatment, we developed an intelligent stimulator to combine biofeedback with functional electrical stimulation. Through the non-invasive measurement and feature extraction of electromyography signals, a value of root mean square can be obtained based on delta-sigma computational technique. In the newly designed stimulator, electromyography feature extraction and feedback control were used to intelligently control the rehabilitation treatment. Both bidirectional detection technologies for stimulated current and programmable interactive way using touchscreen were employed so that the treatment parameters can be accurately quantified and set up. The experiment showed that the design requirements were achieved.
Algorithms
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Artificial Intelligence
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Electric Stimulation Therapy
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instrumentation
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Electromyography
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methods
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Humans
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Signal Processing, Computer-Assisted
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Stroke Rehabilitation
6.Design and implementation of aphasia rehabilitation software based on speech recognition.
Yingjie MA ; Ji CHEN ; Jie SHUAI
Journal of Biomedical Engineering 2006;23(6):1343-1346
A new software therapy instrument is proposed for the rehabilitation of aphasia caused by cerebral disorder, which is different from general drug therapy or physical therapy and is, based on modern speech and biofeedback principles. Aphasia rehabilitation software package on the therapy instrument were designed and implement. The features of the software and its future application were discussed.
Aphasia
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rehabilitation
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Communication Aids for Disabled
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Humans
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Software Design
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Speech Recognition Software
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Speech Therapy
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instrumentation
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methods
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Therapy, Computer-Assisted
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methods
7.A HIFU surgery using 8-DOF robotic surgery platform.
Jianbo XU ; Linqing XIANG ; Zhikui CAO ; Peisun MA ; Wenchao WANG
Journal of Biomedical Engineering 2005;22(4):824-828
Robots are being more and more used in surgery. High Intensity Focused Ultrasound is newly used in tumor treatment and it is non invasive. In this paper, we introduced a Robot integrated HIFU surgery system and its general flow. Also introduced is an 8 DOF surgical platform, its design, its mechanism and its kinematic analysis. In the end, we give out two spatial working areas individually. Each is the combination of 5 dimensional motions. Compared with other platforms available, this surgery platform is more flexible and accurate and its treatment area is larger. All these advantages make the treatment design easier.
Equipment Design
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Humans
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Minimally Invasive Surgical Procedures
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instrumentation
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methods
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Neoplasms
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surgery
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Robotics
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instrumentation
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Surgery, Computer-Assisted
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methods
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Ultrasonic Therapy
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methods
8.The development of 3D US system for treating target localization in focused ultrasound surgery.
Shuang GAO ; Ya-zhu CHEN ; Yang-hua NI
Chinese Journal of Medical Instrumentation 2002;26(3):167-169
Focused Ultrasound Surgery (FUS) is a promising minimally invasive technique in tissue ablation. Because of the high intensity at the ultrasound focus, a precise 3D-localization system is required to determine the site of the treating target in order to increase the efficiency and security of FUS. This paper represents a three dimensional ultrasound (3D US) localization system developed and its workflow. The system is mainly composed of imaging and image processing system, movement device and its controlling circuits, and position feedback device. The system has a maximum scan range of +/- 30 degrees with a resolution of 8 levels from 0.54' to 0.36 degrees. For a spherical shape like target, in theory, the maximum diameter is 160 mm the system can treat. The system can be used to localize precisely the treatment targets with general sizes in the suitable parts of the body in FUS.
Algorithms
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Automatic Data Processing
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Computer Simulation
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Equipment Design
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Humans
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Image Processing, Computer-Assisted
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instrumentation
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methods
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Imaging, Three-Dimensional
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instrumentation
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Microcomputers
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Surgery, Computer-Assisted
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instrumentation
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methods
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Ultrasonic Therapy
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instrumentation
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methods
9.Genetic algorithm application to multi-focus patterns of 256-element phased array for focused ultrasound surgery.
Feng XU ; Mingxi WAN ; Mingzhu LU
Journal of Biomedical Engineering 2008;25(5):1093-1097
The genetic optimal algorithm and sound field calculation approach for the spherical-section phased array are presented in this paper. The in-house manufactured 256-element phased array focused ultrasound surgery system is briefly described. The on-axis single focus and off-axis single focus are simulated along with the axis-symmetric six-focus patter and the axis-asymmetric four-focus pattern using a 256-element phased array and the genetic optimal algorithm and sound field calculation approach. The experimental results of the described 256-element phased array focused ultrasound surgery system acting on organic glass and phantom are also analyzed. The results of the simulations and experiments confirm the applicability of the genetic algorithm and field calculation approaches in accurately steering three dimensional foci and focus.
Algorithms
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Computer Simulation
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Equipment Design
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Humans
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Minimally Invasive Surgical Procedures
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instrumentation
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methods
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Models, Biological
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Surgery, Computer-Assisted
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instrumentation
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methods
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Transducers
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Ultrasonic Therapy
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instrumentation
;
methods
10.Remarks on application of acupuncture instruments in acupuncture quantification and normalization studies.
Jian LIU ; Xiao-Nong FAN ; Shu WANG ; Xue-Min SHI
Chinese Acupuncture & Moxibustion 2009;29(1):35-39
Acupuncture manipulation quantification is an important link of acupuncture normalization study. Because traditional acupuncture manipulation are complicated with difficulty of quantification, acupuncture instruments provide a new way for acupuncture manipulation quantification and acupuncture normalization. It is necessary to increase the understanding of the importance of developing acupuncture instruments, strengthen the study of related theory and development of acupuncture measurement instruments and acupuncture imitation instruments, enlarge serviceable range, verify efficacy, develop the theory of acupuncture manipulation, richen the study methods of acupuncture normalization, so as to promote internationalization of acupuncture.
Acupuncture
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education
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Acupuncture Therapy
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instrumentation
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methods
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standards
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Animals
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Computer-Assisted Instruction
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Humans
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Medicine, Chinese Traditional
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instrumentation
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methods
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standards