Application of Pneumatic Artificial Muscle in Rehabilitation Equipment (review) / 中国康复理论与实践

This paper introduced the application of pneumatic artificial muscles in rehabilitation medical equipment at home and abroad, and emphatically analyzed the application of pneumatic artificial muscle in upper limb rehabilitation instruments and lower limb rehabilitation instruments in recent years, among which upper limb rehabilitation instruments included hand, wrist and arm, and lower limb rehabilitation instruments included leg, knee and ankle. The working characteristics and application scope of the application examples were introduced, and a comparative analysis of the same functional rehabilitation equipment was made.

Design of Spatial Trajectory Crawl Training Device / 中国康复理论与实践

Objective To design a space crawl training device.This device could achieve oval movement by rotating the wheel to drive the handle of the upper limb.At the same time,the leg support is driven to rotate about 30 degrees to 0 de-grees,which can assist the user to complete the entire crawling. Methods The structure of the device was modeled using SolidWorks.Then the whole device was simulated by using SolidWorks Motion,and the dynamic analysis was completed by calculation.Finally,the main force components from SolidWorks were imported into ANSYS Workbench for static analysis. Results and Conclusion The designed space trajectory crawling training device can assist the user to complete the scheduled crawling movement,and the strength checking of the key components meets the strength requirements.

Structure design and calculation analysis for double gasbags based on body weight support treadmill training / 医用生物力学

Objective To develop a double-gasbag weight loss equipment based on body weight support treadmill training (BWSTT)，and analyze the reasonability of the structure design. Methods The mathematical model of double gasbags in the process of air inflation was established, and the 3D model of double gasbags was established and meshed using Gambit; the analog computation for gas flow of the gasbag was conducted using Fluent; normal subjects with body weight below 80 kg were selected for clinical experiments based on designing and roughing of the prototype. Results The inflation time of double gasbags was 16.9 s and the maximum weight loss percentage was 90%; the pressure inside double gasbags was 2 kPa, and the relationship between the weight loss percentage and inside pressure of the gasbag was obtained by clinical experiments, which verified the reasonability of the gasbag structure. Conclusions The double-gasbag structure can meet the requirements of weigh loss training, which provides an effective weight loss support method and a feasible structural design for patients with lower limb dysfunction during rehabilitation training.

Development of external therapeutical ultrasound systems (ETUS) for acute myocardial infarction / 中国医疗器械杂志

This paper introduces the principle and structure of the ETUS system for acute myocardial infarction. This system is an assistant treatment tool with ultrasound waves acting from the external on the heart, speeding thrombolytic drug's permeation into the thrombi for a good curative effect.