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56 results about "Gastrocnemius muscle" patented technology

The gastrocnemius muscle (plural gastrocnemii) is a superficial two-headed muscle that is in the back part of the lower leg of humans. It runs from its two heads just above the knee to the heel, a three joint muscle (knee, ankle and subtalar joints). The muscle is named via Latin, from Greek γαστήρ (gaster) "belly or stomach" and κνήμη (knḗmē) "leg"; meaning "stomach of leg" (referring to the bulging shape of the calf).

Human body knee joint force moment testing system and method based on surface electromyogram signals, and application

The invention relates to a human body knee joint force moment testing system and method based on surface electromyogram signals, and an application. The method comprises the following steps of step 1,collecting electromyogram signals of four muscles of vastus lateralis, semitendinosus, biceps femoris long head and gastrocnemius muscle of lower limbs of a user, and performing feature extraction; step 2, synchronously collecting leg kinematics data of the user in the walking process through a three-dimensional movement acquiring system, computing knee joint angles of the user, besides, synchronously collecting the insole pressure of feet of the user in the walking process through a force measuring treadmill, constructing a simplified dynamics model of legs of the user, and performing inverse dynamics solving to obtain the calculated force moment of knee joints of the user; and step 3, constructing a training dataset and a test dataset of a knee joint force moment testing long-term and short-term memory (LSTM) neural network, and completing the training of the knee joint force moment test neural network model through data obtained in the step 1 and the data obtained in the step 2. The method disclosed by the invention has the characteristics of being wide in application range and high in test precision.
Owner:XI AN JIAOTONG UNIV

Biped robot based on pneumatic artificial muscles

InactiveCN105172931AImprove energy efficiencyRealize flexible driveVehiclesTibiaKnee Joint
The invention discloses a biped robot based on pneumatic artificial muscles and relates to biped robots. The biped robot based on the pneumatic artificial muscles aims to solve the problems that an existing active robot is driven through a rigid structure, the system structure is complicated, the flexibility is poor, and the energy efficiency of the existing active robot is low. The biped robot based on the pneumatic artificial muscles comprises a left leg, a right leg and a pelvis. The left leg and the right leg each comprise a thigh, a shank, a foot, a hip joint, a knee joint and an ankle joint. The left leg and the right leg are connected through the pelvis. The pelvis is connected with the thighs in a rotary mode through the hip joints. The thighs are connected with the shanks in a rotary mode through the knee joints. The shanks are connected with the feet in a rotary mode through the ankle joints. The iliac muscles, the gluteus maximus, the vastus lateralis muscles, the biceps femoris muscles, the semitendinous muscles and the rectus femoris muscles are arranged on the thighs. The tibialis anterior muscles, the soleus muscles and the gastrocnemius muscles are arranged on the shanks. The upper ends of the iliac muscles and the upper ends of the gluteus maximus are hinged to the pelvis respectivley. The lower ends of the iliac muscles and the lower ends of the gluteus maximus are hinged to the thighs respectively. The upper ends of the vastus lateralis muscles and the upper ends of the biceps femoris muscles are hinged to the thighs respectively. The biped robot based on the pneumatic artificial muscles belongs to the field of humanoid robots.
Owner:HARBIN INST OF TECH

Differential expression of nucleic acid molecules

InactiveUS20060228775A1Treatment effectPeptide/protein ingredientsTissue cultureMyopathyMesenteric adipose tissue
The present invention relates generally to nucleic acid molecules expressed at least in the hypothalamus, liver, mesenteric adipose tissue, or red gastrocnemius muscle conveniently identified using differential display techniques under differing physiological conditions. The nucleic acid molecules are associated with or act as markers for conditions of inter alia a healthy state, myopathy, obesity, anorexia, weight maintenance, diabetes, disorders associated with mitochondrial dysfunction, genetic disorders and/or metabolic energy levels. More particularly, the present invention is directed to a nucleic acid molecule and/or its expression product for use in therapeutic and diagnostic protocols for conditions such as inter alia a myopathy, obesity, anorexia, weight maintenance, diabetes, disorders associated with mitochondrial dysfunction, genetic disorders and/or metabolic energy levels. The subject nucleic acid molecule and expression product and their derivatives, homologs, analogs and mimetics are proposed to be useful, therefore, as therapeutic and diagnostic agents for inter alia a myopathy, obesity, anorexia, weight maintenance, diabetes, disorders associated with mitochondrial dysfunction, genetic disorders and/or metabolic energy levels or as targets for the design and/or identification of modulators of their activity and/or function.
Owner:CHEMGENEX PHARMA

Control method for active rehabilitation treatment by using sEMG on affected side of patient

The invention relates to a control method for active rehabilitation treatment by using sEMG on an affected side of a patient. The control method comprises a model training stage and an online active rehabilitation treatment stage. The method utilizes the antagonistic relationship between the tibialis anterior muscle and the gastrocnemius muscle during ankle joint movement, enables the action typeof the ankle joint correlated with the contraction of a single muscle group, and achieves the movement intention identification; continuous estimation of a motion angle is completed and a continuous smooth joint motion angle estimation curve is obtained by utilizing a normalized characteristic value; then, the identified motion intention and the estimated joint motion angle serve as inputs to be sent to an ankle joint rehabilitation robot, the robot assists the patient to achieve a target action, and corresponding active rehabilitation treatment is completed. The method can meet the requirements of patients for simple control, safety and reliability of the exoskeleton type ankle rehabilitation device. For patients in different rehabilitation stages, only a small amount of parameters need to be modified, an off-line model can be well adapted, and the off-line model is more convenient, fast and easy to operate.
Owner:GENERAL HOSPITAL OF PLA

Channel selection method for surface electromyography signal based on LDA algorithm

The invention discloses a channel selection method for surface electromyography signal based on an LDA algorithm. The method comprises the steps of selecting different combinations from six alternative electromyographic signal channels including tibialis anterior muscle, peroneus longus and soleus, outer gastrocnemius muscle, inner gastrocnemius muscle of medial leg and inner gastrocnemius muscleof posterior leg, for quantitative electromyographic signal channel combinations; calculating the average recognition rate of five action patterns of ankle including relaxation, dorsal flexion, plantar flexion, eversion and enstrophe, for each channel combination by using an accuracy calculation algorithm based on the LDA algorithm; and obtaining an optimal channel combination through comparing the average recognition rates of all the channel combination. The optimal electromyographic signal channel combination is determined through recognition rate calculation based on the LDA algorithm. Compared to a method of determining a channel combination by experience, the channel selection method disclosed by the invention is more scientific and accurate, and can recognize the five action patternsof ankle with a high recognition rate by using less electromyographic signal channels.
Owner:SOUTH CHINA UNIV OF TECH

Novel lithotomy position surgery leg bracket

The invention relates to a novel lithotomy position surgery leg bracket. The technical scheme of the novel lithotomy position surgery leg bracket is that, according to the position characteristic of lithotomy position surgery, a traditional scheme that popliteal space of a leg is supported is changed, popliteal space supporting is replaced by shank supporting, and all untoward effects caused by the traditional popliteal space supporting are solved. A boot-shaped design completely according with the three-dimensional physiological curve of a shank can reduce the press on the popliteal space anda gastrocnemius muscle, and avoid the damage on popliteal space plexus and fibular nerves. Cantilever type leg supporting is adopted for adjusting positions needed in surgery at will, the surgery position is controlled by an adjusting handle, and the leg bracket can stay in a desired position at will. When the position is adjusted, no medical care personnel is needed for lifting and moving the leg of a patient, and even during the surgery, the medical care personnel can still easily adjust multiple angles in a germ free condition of the leg. The work intensity of the medical care personnel isreduced, the efficiency and safety of the surgery are improved, and the surgical results are improved.
Owner:奥克兰高分子医用材料(天津)有限公司

CD29<+> human umbilical cord source mesenchymal stem cell and use thereof in preparation of drug for treating skeletal muscle atrophy in high-sugar and high-fat environments

ActiveCN107557332AImprove hyperlipidemiaImprove symptoms of skeletal muscle atrophyMetabolism disorderMuscular disorderAcute hyperglycaemiaAntigen
The invention discloses a CD29<+> human umbilical cord source mesenchymal stem cell and use thereof in the preparation of a drug for treating skeletal muscle atrophy in high-sugar and high-fat environments. The CD29<+> human umbilical cord source mesenchymal stem cell represents the following mesenchymal stem cell cytomembrane molecules: a human leukocyte differentiation antigen CD73, a human leukocyte differentiation antigen CD90, a human leukocyte differentiation antigen CD105 and a human leukocyte differentiation antigen CD29. According to the CD29<+> human umbilical cord source mesenchymalstem cell, the hyperlipidemia and hyperglycemia of a db<- / -> mouse can be obviously improved, muscle fiber cross sections of soleus and gastrocnemius muscle of the db<- / -> mouse can be increased, andthe contents and cell number of each myotube are increased, so that the symptoms of the skeletal muscle atrophy of the db<- / -> mouse are improved. According to the CD29<+> human umbilical cord sourcemesenchymal stem cell, the theoretical foundation and experiment basis are laid for the subsequent research and development of the drug for treating skeletal muscle atrophy in the high-sugar and high-fat environments, and the CD29<+> human umbilical cord source mesenchymal stem cell has wide application prospects.
Owner:JILIN TUO HUA BIOTECH

Sport shoes and trousers system simulating and reinforcing function of lower limbs gastrocnemius

The invention belongs to the field of sports instruments, and provides a sports shoe and trousers system for simulating and strengthening the functions of gastrocnemius in lower limb. The system comprises a pair of trousers and a pair of shoes, which are connected with each other, and further includes an elastic structure for simulating and strengthening gastrocnemius, which is fixedly arranged in an anatomical position corresponding to gastrocnemius of a human body through a fixing strap; a first fixing strap is arranged in the waist position of the trousers, and is arranged by being wound around waist once; a second fixing strap is arranged in the position above the knee joint of the trousers, and is arranged by being wound around legs; and the system is further equipped with a third fixing strap, with the nearest end connected with the first fixing strap and the farthest end connected with the second fixing strap. On the one hand, the invention can serve the purpose of protecting gastrocnemius from damages during intense exercises; and on the other hand, the invention can strengthen the action which is the result of gastrocnemius striding across a joint and opposite to the moment thereof in direction, thereby improving the muscular functions of gastrocnemius, and achieving the purpose of enabling athletes to perform better.
Owner:SHANGHAI UNIV OF SPORT
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