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FROM EMG CONTROLLING TO"REGENERATED finger" CONTROLLING ARTIFICIAL HAND-THE RECENT ACHIEVEMENT IN REHABILITATION ENGINEERING

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Chinese Journal of Biomedical Engineering(English Edition) 1997年第3期6卷 151-151页

作者： Hu Tianpei Xu Zhengsong Chee Ben Gao Zhonghua Wu Tongshen(Institute of Rehabilitation Engineering, Shanghai Jiao Tong University, CHINA)

According to the sampling statistics there are over 7 millions limb disabled persons in China from several times of those in the world. For the benefit to the amputees, thousands varies kinds of commencial Products of artificial hands, by scientific promotion have ben developed in the recent half century. Among those products the EMG controlling artificial upper limb brings the hope to the amputees. The later are now used widely form the earlest one in *** 1978, Shanghai Jiao Tong University began to study and develop the EMG controlling artificial band mounted to amputes over thousand disabled during a couple of recent *** risidual muscles of an amputee are the signal source of the artificial hand controlled by EMG. The evoked EMG which can transmit the brain moving information is one of the bioelectricities from human body. The EMG signal, accumulated at skin surface with surface electrodes, passing through filtering and amplifying circuits controls the movement-this is the main principle of EMG controlling artificial ***, owing to the weakness of EMG (μv) and a group of muscles information plus the strong turbulence of electric field (v), the integrated EMG can’t completely reflect the brain moving act and will influence the accuracy of EMG-hand, especially those of the multi-multi-degree of *** 1978, only 57% of the controlling aaccuracy of artificial hand with 3-degree of freedom could be reached by the Herbert’s research. In 80’s, the controlling accuracy raised up to 72% by Denning’s new method. Up to now, the accuracy is still not ideal, eventhrogh the Hi-tech of using pattern-recognitionand artincial neuro-net work. The electronic artificial hand will be considered successful and practical only with the moving accuracy more than 95%.Some research by using implant electrode for detecting the neuro-information or EEG controllingmethod met also dimculties for raising the accuracy of artificial *** breaking througll the threshold of

关键词： Toe to stump regenerated finger Electronic artificial hand EMG controlling artifical hand

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finger Chart在教材征订系统中的应用和实现

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计算机光盘软件与应用 2011年第11期14卷 257-257页

作者：马巍信阳农业高等专科学校计算机科学系河南信阳464000

finger Chart是一个轻量级的基于Flash技术的图表解决方案，具有节省资源和支持多开发语言的优点。把finger Chart应用于教材征订系统中的数据统计和展现，可提高开发效率、提供优秀的用户体验。

关键词： finger Chart 教材征订系统

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finger虹膜切除术:眼前节肿瘤的小切口活检

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世界核心医学期刊文摘（眼科学分册） 2005年第11期1卷 22-22页

作者： finger P.T. Latkany P. Kurli M. Iacob C. 桑延智 New York Eye Cancer Center 115 East 61st Street New York Ci ty NY 10021 United States Dr.

Aims: To develop a minimally invasive, maximally effective method to biopsy an terior segment tumours. Methods: A 25 gauge aspiration cutter (vitrector) was us ed to biopsy anterior segment tumours. The probe was introduced under sodium hya luronate 1%and through a 1 mm incision. Aspiration (600 mm Hg) cutting (300 cpm ) was performed to obtain specimens for cytology and histopathology. Results: Di agnostic material was obtained in nine of 10 (90%) cases. Diagnoses included ir is naevus, iris stroma, malignant melanoma, melanocytoma, epithelial inclusion c yst, and sarcoid granuloma. All corneal wounds were self sealing. One patient de veloped a transient postoperative increase in intraocular pressure. Within the f ollow up of this study, no patients suffered intraocular haemorrhage, infection, cataract or vision loss. Conclusion: The finger iridectomy technique was a mini mally invasive and very effective biopsy technique. Aspiration cutting yielded r elatively large pieces of tissue (and cells) used for cytopathological and histo pathological evaluation. Small incision surgery allowed for rapid rehabilitation and no significant complications.

关键词：虹膜切除术眼前节 finger 小切口玻璃体切割头一过性眼压升高包涵囊肿恶性黑素瘤虹膜痣透明质酸钠

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finger版本更新给新手更多乐器选择

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计算机与网络 2016年第14期42卷 34-34页

作者：田峰

finger是一款线上乐器教学的音乐教育软件。针对不同需求的用户免费提供多种乐器(民谣吉他、电吉他、尤克里里、架子鼓、声乐、钢琴、卡宏)的线上视频教学。同时,针对不同层次的用户提供难易程度不等的训练课程选择,并由用户自由选择时... 详细信息

finger是一款线上乐器教学的音乐教育软件。针对不同需求的用户免费提供多种乐器(民谣吉他、电吉他、尤克里里、架子鼓、声乐、钢琴、卡宏)的线上视频教学。同时,针对不同层次的用户提供难易程度不等的训练课程选择,并由用户自由选择时间进行训练。每完成一次课程学习,用户即可在训练记录里查看训练进度。finger 4.7版正式上线,增加乐器选择,优化界面,速度提升,操作更加简单快捷,用户可以根据兴趣选择课程,并通过

关键词：乐器视频用户新手 finger 乐器教学

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音乐教育平台finger获1亿元B轮融资

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留学 2018年第20期 17-17页

10月10日,音乐教育平台finger正式宣布已完成1亿元B轮融资,本轮融资由绿城服务集团领投,硅谷银行跟投,老股东元璟资本也持续跟进。finger将携手绿城从线上App向线下实体店进行沉淀,第一步将在杭州铺设新店。finger App于2015年12月上线... 详细信息

10月10日,音乐教育平台finger正式宣布已完成1亿元B轮融资,本轮融资由绿城服务集团领投,硅谷银行跟投,老股东元璟资本也持续跟进。finger将携手绿城从线上App向线下实体店进行沉淀,第一步将在杭州铺设新店。finger App于2015年12月上线,旗下子品牌包括finger钢琴、finger吉他,为成人用户、少儿用户

关键词： finger 教育平台

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Kinetostatics Analysis of a Novel 6-DOF Parallel Manipulator with Three Planar Limbs and Equipped with Three fingers

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Chinese Journal of Mechanical Engineering 2014年第5期27卷 919-927页

作者： LU Yi LI Xuepeng College of Mechanical Engineering Yanshan University Key Laboratory of Parallel Robot and Mechatronic System of Hebei Province Key Laboratory of Advanced Forging & Stamping Technology and Science of Ministry of National Education

It is significant to develop a robot hand with high rigidity by a 6-DOF parallel manipulator（PM）.However,the existing6-DOF PMs include spherical joint which has less capability of pulling force bearing,less rotation range and lower precision under alternately heavy loads.A novel 6-DOF PM with three planar limbs and equipped with three fingers is proposed and its kinematics and statics are analyzed systematically.A 3-dimension simulation mechanism of the proposed manipulator is constructed and its structure characteristics is *** kinematics formulae for solving the displacement,velocity,acceleration of the platform,the active legs and the fingers are *** statics formulae are derived for solving the active forces of PM and the finger *** analytic example is given for solving the kinematics and statics of proposed manipulator and the analytic solved results are verified by the simulation *** is proved from the error analysis of analytic solutions and simulation solutions that the derived analytic formulae are correct and provide the theoretical and technical foundations for its manufacturing,control and application.

关键词： parallel manipulator planar limbs finger kinematics statics

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Correlation between primary motor cortex neural activity and fingertip force following transcranial magnetic stimulation

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Neural Regeneration Research 2010年第24期5卷 1905-1909页

作者： Xiaoying Wu Wensheng Hou Xiaolin Zheng Yingtao Jiang Jun Zheng Yan He Key Laboratory of Biorheological Science and Technology Ministry of Education Bioengineering College Chongqing University Chongqing 400044 China Department of Electrical and Computer Engineering University of Nevada Las Vegas NV 89154 USA Department of Computer Science New Mexico Institute of Mining and Technology Socorro NM 87801 USA

A better understanding of the neural mechanisms of finger-force regulation can help to explain the relationship between the central nervous system and nerve-muscle force, as well as assist in motor functional rehabilitation and the development robot hand designs. In the present study, 11 healthy volunteers performed a different target force-tracking task, which involved the index finger alone, index and middle finger together, and the combination of four fingers （i.e., index, middle, ring, and little）. The target force trace corresponded to 3 levels of 20% maximal voluntary changes （MVC）, 30% MVC, and 40% MVC in 20 seconds. In the test, an unexpected single 120% motor threshold transcranial magnetic stimulation was applied to the primary motor cortex （M1） during force tracking. Results revealed that peak force changes increased with increasing background force and the number of involved task fingers. These results demonstrate that M1 neural activities correlate with finger-force production, and M1 plays a role in finger-force control. Moreover, different neuronal networks were required for different finger patterns; a complicated task required multi-finger combinations and a complicated neuronal network comprised a large number of neurons.

关键词： transcranial magnetic stimulation finger motor control neural activities primary motor cortex background force

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Bilateral gangrene of fingers in a patient on empagliflozin: First case report

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World Journal of Diabetes 2019年第2期10卷 133-136页

作者： Rajasree Pai Ramachandra Pai Raghesh Varot Kangath Endocrinology and Metabolism and Internal Medicine San Francisco VA Medical Center Santa Rosa CA 95492 United States Infectious Diseases and Internal Medicine San Francisco VA Medical Center Santa Rosa CA 95492 United States

BACKGROUND Sodium glucose cotransporter 2(SGLT2)inhibitors use has been associated with toe amputations and non-healing ulcers and gangrene mostly of lower *** are no case reports about association of Empagliflozin with finger ulcers or *** is the first case report of Empagliflozin(Jardiance)an SGLT2 inhibitor causing gangrene of fingers and second case in literature about any SGLT2 inhibitor causing gangrene of upper *** SUMMARY A 76-year-old man with type 2 diabetes mellitus sustained minimal trauma to both middle fingers,which started *** was started on empagliflozin a week later for management of type 2 diabetes mellitus and started developing gangrene to both middle finger tips along with neuropathic pain which worsened over the course of next four *** were negative for vascular insufficiency,infection and vasculitis and imaging of hand was *** of empagliflozin slowed progression of gangrene and caused symptomatic improvement with reduction in neuropathic *** This case report suggests possible association of empagliflozin and finger gangrene and recommends that more research and awareness among clinicians is needed in this area.

关键词： Empagliflozin finger gangrene Non-healing ulcer Type 2 diabetes mellitus Sodium glucose cotransporter 2 inhibitor Jardiance Case report

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Management of intra-articular fracture of the fingers via mini external fixator combined with limited internal fixation

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Chinese Medical Journal 2009年第21期122卷 2616-2619页

作者： LI Wen-jun TIAN Wen TIAN Guang-lei CHEN Shan-lin ZHANG Chang-qing XUE Yun-hao LI Zhong-zhe ZHU Yin Department of Hand Surgery Beijing Jishuitan Hospital Beijing 100035 China

Background Intra-articular fractures of the fingers are common problems to emergency physicians and hand surgeons Inappropriate management of these injuries may result in chronic pain, stiffness, deformity, or post traumatic arthritis. Ideal treatment necessitates the restoration of a stable and congruent joint that will allow early mobilization. The purpose of this study was to investigate the results of intra-articular fracture of the fingers by mini external fixator combined with limited internal fixation. Methods From May 2005 to May 2007, a total of 26 patients with intra-articular fracture of the fingers were treated by mini external fixator combined with limited internal fixation. Of the 26 cases, 11 involved in metacarpophalangeal joint, and 15 interphalangeal joint in proximal interphalangeal. Kirschner wire, mini wire and absorbable suture were used for limited internal fixation. All patients were followed up and patients were accomplished with total active motion （TAM） of fingers. Results All patients were reviewed by an independent observer. The mean follow up was 13 months （range 9 to 24 months）. Subjective, objective and radiographic results were evaluated. X-ray films revealed fracture union and the average radiographic union time was 7 weeks with a range of 5-12 weeks and the phalange shortening or rotation in 2 cases, joint incongruity （less than 1 mm） and joint space narrowing in 3 cases respectively. Phalangeal shortening or rotation was observed in 2 cases and joint incongruity or joint space narrowing was observed in 3 cases. An artificial implant was performed on one case for traumatic arthritis 1.5 years after surgery. Based on TAM the overall good-excellent rate of joint motion function was 80.8%. Conclusion Mini external fixator combined with limited internal fixation is a reliable and effective method for treatment of intra-articular fracture of the fingers.

关键词： external fixator intra-articular fracture internal fixation finger

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Design of Workspace of Human fingers and Computer Keyboard Operation

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International English Education Research 2013年第12期 212-218页

There are more and more complex tools and machinery that need be operated by human fingers in our modem industrial environment. Such as computer keyboards, screwdriver, handle wrench, button and switch. All of those should be designed to work effectively and safely with the operators for whom they were designed. At first, ergonomic consideration in design is reachable; this means the operator＇ s fingertip must be able to reach the operating component. This is generally no question because human ann has much more degrees of freedom required to position his arms, hands and fingers in the three-dimension space. However, some times we need the finger operate with a fixed wrist. For exm＇nple in the case in the typing, the reachable workspace of the finger must take into account in such situation. finger contacting is the most familiar operation mode of the man-machine system, and the index fmger takes on the primary operation tasks. From viewpoint of ergonomic engineering, the operation component should be placed within the workspace of the fingertip to reduced or eliminate the movement of palm and ann should to the greatest extent during finger manipulation. Therefore the research of the workspace of ginger is significant to the ergonomic design of the operation device. In this paper, the reachable workspace and workspace under direction restrain of contacting for the index finger are determined using serial mechanism model and the Penalty Function Method based on geometric measurement of human body. The optimal operating position and orientation of human finger is analyzed.

关键词： Ergonomic Engineering finger Workspace Computer keyboard

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