Application of the orthoses used for burn / 医用生物力学

Objective To investigate effects of orthoses and relative techniques applied in burn patients.Methods 20 customized orthoses used for 17 burn cases since the year 2008 were studied, and the effects and main technical points of the treatment were summarized based on the principle of such orthoses. The burn areas in these patients were at the neck, hand, ankle, foot and body trunk. The intervention time of using orthoses was at early stage of burn, recovery stage and late stage of rehabilitation, respectively. Results The review study showed that fitting the orthoses after burn could prevent the contracture of the joint, restrain scar casting, assist training to improve the range of motion of the joint. Conclusions According to the state of the burn patients, the use of well fitted orthoses could have obvious good clinic effect, which promotes the functionality recovery.

Study of the mouse device based on surface EMG signals of the temporalis / 医用生物力学

Objective To design a mouse device based on surface EMG signals of the temporalis for people who suffered with paraplegia, upper limb disability or impaired hand function to be able to operate the mouse. Methods A control method for mouse operation based on surface EMG was presented. Through analysis and test, facial surface EMG signals of the temporalis were selected as the control signal and with the bite as a trigger action. EMG signals with different characteristics could be generated from the temporalis muscle according to different bite actions, and thus a mouse device controlled by the facial surface EMG signals from the temporalis was designed. Results The test proved that by using the device, subjects could control the mouse by a simple bite action. Conclusions The control method for mouse operation based on surface EMG is feasible，and the mouse device designed according to this method is valuable in practical application.

Biomechanics in rehabilitation engineering / 医用生物力学

Rehabilitation engineering can not only improve life quality of the elder and people with disability, but also reduce burdens of the society and family for care at the same time. With the development of economy and improvement of life quality, rehabilitation engineering will be raised to a new level. Biomechanics provides fundamental basis for the design and assembly of rehabilitation products. As the main reason for rehabilitation is to maximally restore the lost function of body support and exercise, it is important to understand the force transmission and interaction between the body and supporting device. Through biomechanical research, optimized assistive technology for rehabilitation and training program can be designed. This paper will review the major focus on biomechanics research in rehabilitation engineering, including body support interfacial biomechanics, musculoskeletal kinematics and kinetics, finding appropriate control signals, and developing advanced materials, so as to provide theoretical basis for the development of rehabilitation products.