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295 results about "Muscle fibre" patented technology

Muscle fiber. n. A muscle cell, especially one of the cylindrical, multinucleate cells that make up skeletal muscles and are composed of numerous myofibrils that contract when stimulated.

Exoskeleton walking mode identification method based on electromyographic signals

The invention relates to an exoskeleton walking mode identification method based on electromyographic signals. The exoskeleton walking mode identification method based on the electromyographic signal comprises the steps of (1) electromyographic signal collection, wherein an electromyographic electrode is attached to the muscle belly along the selected muscle group muscle fibers, an electromyographic signal sensor is connected with the electromyographic electrode through an electrode buckle, and a single-chip microcomputer fixed to the exoskeleton is connected with the electromyographic signal sensor through a wire and used for collecting the electromyographic signals; (2) electromyographic signal conditioning, wherein after the step (1), surface electromyographic signals collected by the electromyographic electrode are input to the electromyographic signal sensor for signal conditioning; (3) exoskeleton walking mode identification through an SVM-KNN classification algorithm based on threshold segmentation, wherein the surface electromyographic signals processed in the step (2) are input to the single-chip microcomputer for A / D conversion, preprocessing for elimination of zero drift, detection feature extraction initial time, feature extraction and classification through the SVM-KNN classification algorithm based on threshold segmentation, and finally the exoskeleton walking mode is identified.
Owner:HEBEI UNIV OF TECH

Active dot-matrix type flexible electrode paste device

The invention discloses an active dot-matrix type flexible electrode paste device which is applied to the technical field of collecting of human body surface electrophysiological signals in the field of medical treatment and health. According to the active dot-matrix type flexible electrode paste device, a flexible dry electrode module, a signal collecting circuit system and an auxiliary assembly are integrated into a paste piece with viscosity. The flexible dry electrode module directly makes contact with the human body surface to collect human body electrophysiological signals, impedance matching is achieved through a voltage following circuit, the signal collecting circuit system conducts amplification filter and A/D conversion processing on the electrophysiological signals after impedance matching, and finally the electrophysiological signals are transmitted into a client through a wireless communication module. The device has the characteristics of convenient wearing and softness, is suitable for long-term use of 24 hours every day, and meets the requirements such as rehabilitation and diseases of human-computer interaction. A dot-matrix type electrode arrangement mode is adopted, the electrophysiological signals with the irregular muscle fiber trend or the electrophysiological signals of small muscle group parts can be collected, and multidimensional difference calculation can be realized to improve the spatial filtering effect.
Owner:SHANGHAI UNIV

Product for treating myocardial infarction based on chitosan aquagel and growth factor

The invention discloses an injectable myocardial tissue engineering product based on temperature-sensitive chitosan aquagel. Concretely, the temperature-sensitive chitosan aquagel is used as a support material and carries one or a plurality of different blood vessel growth promotion factors, such as bFGF, PDGF-BB, VEGF, and the like, and the condition that the temperature-sensitive chitosan aquagel restores a myocardial infarction area is observed after the temperature-sensitive chitosan aquagel is injected and transplanted to the specific area of an animal myocardial infarction model. The temperature-sensitive myocardial tissue engineering product established by applying the support material can promote the growth of myocardial capillary vessels and arteriolae, can increase the growth of sarcogenic fibres, can promote the regeneration of myocardial tissues, can increase the locular wall thickness of the infarction area, can remodel the shape of an original ventricle and can improve the function of the heart. The invention has simple operation technology and mild enforcement condition, provides a new product for the myocardial tissue engineering and has an important meaning for the clinical development of treating heart diseases to tissue engineering cardiac muscles.
Owner:INST OF BASIC MEDICAL SCI ACAD OF MILITARY MEDICAL SCI OF PLA

Method for isolated culture of human fat mesenchyma stem cell and special culture medium thereof

ActiveCN101314766AThe method of isolation and culture is simpleImprove efficiencySkeletal/connective tissue cellsAntigenMuscle injury
The invention discloses a method for separately culturing a human adipose mesenchymal stem cell and a dedicated culture medium thereof. The culture medium used for separately culturing the human adipose mesenchymal stem cell comprises an animal cell basic culture medium, fetal calf serum, an epidermal growth factor and a platelet-derived growth factor. The final concentration of the fetal calf serum is 1-200 mL/L, the final concentration of the epidermal growth factor is 1-100 ng/ml, and the final concentration of the platelet-derived growth factor is 1-100 ng/ml. The adipose mesenchymal stem cell of the invention has CD31-, CD34-, CD45- and HLA-DR-, as well as the phenotype of CD29+, CD44+, CD105+ and Flk-1+. The specificity cell surface marker and the relevant antihelion molecule of a skeletal muscle cell and a vascular endothelia cell can be expressed after inducement is performed in vitro. Muscle fiber, vascular endothelin and functional muscle satellite cells can be differentiated in a muscle injury model mouse body caused by medicine and the expression of dystrophin protein on the ducheme muscular dystrophy (DMD) model mouse (mdx) myolemma can be partially recovered, so as to release the pathological symptom of the model mouse.
Owner:微能生命科技集团有限公司

Micro-nano driving platform for real-time variable-frequency regulation and control of muscle fiber

The invention discloses a micro-nano driving platform for real-time variable-frequency regulation and control of muscle fibers, which comprises a central processing module, three experiment groove modules with a same structure, a motor servo platform module, a microscopic observation module, a data processing module and an environment regulation and control module, wherein the central processing module is connected with the three experiment groove modules, the motor servo platform module, the microscopic observation module, and the data processing module; the data processing module is connected with the microscopic observation module; the environment regulation and control module is respectively connected with the three experiment groove modules; the microscopic observation module is respectively connected with the three experiment groove modules. The platform of the invention is compact in structure, durable, and stable, has the function of stimulation pulse variable-frequency transmission, breaks through the limitation of single freedom degree for routine muscle fiber experiment platforms, can be used for muscle fiber complex motion control experiments in a two dimensional plane, and provides experiment means for the exploration of muscle control principles and the further verification of 4M models.
Owner:SHANGHAI JIAO TONG UNIV
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