10 results about "Muscle architecture" patented technology

Methods and systems for determining changes in muscle activity patterns based on the optical response of subcutaneous human body structures are presented, along with methods and systems for controlling assistive robotic systems based on the measured muscle activity patterns. Elements of a muscle activity measurement system are mechanically coupled to a wearable structure that fits closely to a portion of the body of a human user. The muscle activity measurement system includes multiple emitters and detectors at different spacing along the skin surface. In some embodiments, the illumination intensity of each measurement channel, the programmable gain of each measurement channel, or both, are calibrated to maximize measurement sensitivity. In some embodiments, optical measurement data is employed to more accurately locate the muscle activity measurement system with respect to the human body. In some embodiments, a muscle activity measurement system tracks changes in muscle structure over time.

A method of estimating muscle fibre architecture for a muscular structure is described. The method comprises receiving a plurality of images that represent the motion of the muscular structure during a motion sequence, receiving an initial model of muscle fibre architecture, receiving a model of mechanical coupling between muscular structure motion and muscle fibres, and generating a joint function using muscular structure motion as represented in the plurality of images, the initial model of muscle fibre architecture, and the model of mechanical coupling. The method further comprises applying an optimisation procedure to optimise the joint function and, from the optimisation procedure, determining a model of muscle fibre architecture consistent with the muscular structure motion indicated in the plurality of images.

A method of estimating muscle fibre architecture for a muscular structure is described. The method comprises receiving a plurality of images that represent the motion of the muscular structure during a motion sequence, receiving an initial model of muscle fibre architecture, receiving a model of mechanical coupling between muscular structure motion and muscle fibres, and generating a joint function using muscular structure motion as represented in the plurality of images, the initial model of muscle fibre architecture, and the model of mechanical coupling. The method further comprises applying an optimisation procedure to optimise the joint function and, from the optimisation procedure, determining a model of muscle fibre architecture consistent with the muscular structure motion indicated in the plurality of images.

The present invention discloses a double-network composite aerogel and its preparation method and application. The preparation method comprises: mixing waterborne polyurethane, graphene nanoribbons and water, ultrasonically dispersing to obtain a dispersion, placing the dispersion in a carbon nanotube dispersion after ice-template treatment and directional freeze-drying, and then ice-template treatment and directional freeze-drying again to obtain a double-network composite aerogel. The graphene nanoribbons are obtained by electrochemical depolymerization and have strong mechanical properties and electrical conductivity. A double-network composite aerogel with a muscle-like structure is prepared, which also has strong mechanical properties and high sensitivity, as well as waterproofness and thermal insulation properties. It can be used as a flexible pressure sensing material to monitor different degrees of movement of different parts of the human body in the air and underwater. The preparation method provided by the present invention is green and simple, and is of great significance to the application of aerogel in pressure sensing materials.

The application provides a portable multi-modal muscle health state detection system and method suitable for patients with bone fracture, and relates to the technical field of medical diagnosis. The system comprises: the flexible sensing patch comprises a flexible substrate and a bioelectrical impedance detection module, a surface electromyography detection module and a near-infrared spectroscopy muscle oxygen detection module collectively integrated on the flexible substrate, and the flexible sensing patch is used for non-invasive collection of multi-modal original monitoring data of a muscle part to be detected. The handheld host is electrically connected with the flexible sensing patch, the handheld host is used for sending control instructions to each detection module and receiving the multi-modal original monitoring data, and a comprehensive evaluation report containing three dimensions of muscle structure, muscle function and muscle metabolism is generated based on each parameter. The application overcomes the technical defects of single evaluation dimension of the existing portable device.

The application belongs to the technical field of bionic robots, and discloses a bionic quadruped robot based on a pneumatic honeycomb muscle structure and a control method. The bionic quadruped robot comprises a robot trunk assembled by a trunk plate, a connecting plate and a shoulder plate, four mechanical legs are respectively installed at two ends of the two shoulder plates, a thigh skeleton is installed on the shoulder plate through a thigh honeycomb muscle structure, the thigh skeleton is installed with the thigh honeycomb muscle structure through two double-degree-of-freedom connecting joints, and a shank honeycomb muscle structure is additionally installed between the thigh skeleton and the shank skeleton. The thigh honeycomb muscle structure and the shank honeycomb muscle structure are respectively supplied with action instructions issued by a gas pressure control system through a gas source supply system to provide power for the movement of the thigh skeleton and the shank skeleton, and precise control is realized on each inflation area, so as to complete complex operations such as walking, transverse movement, turning and obstacle avoidance. The bionic quadruped robot designed by the application has the advantages of low cost and smooth gait, and can realize large load under harsh conditions.

The invention relates to the technical field of rehabilitation medicine and intelligent rehabilitation engineering, and discloses a self-adaptive constant-speed rehabilitation training method based on tissue morphology and electrophysiological signal double feedback. According to the method, muscle group tissue morphology and electrophysiological signals are synchronously collected through high-resolution ultrasound and surface myoelectricity, and muscle structure-function joint representation is constructed through multi-modal time sequence alignment; an adaptive impedance adjusting model is used for dynamically generating individualized constant-speed training resistance, and a joint angular speed closed-loop feedback correction track is combined, so that it is ensured that the resistance is accurately matched with the muscle state under full-range constant-speed movement. Rehabilitation normal form transformation from experience driving to physiological feedback driving is achieved, and training accuracy, safety and individual suitability are improved.

The invention discloses a composition containing rhizoma polygonati for preventing and / or treating sarcopenia. The composition is prepared from rhizoma polygonati, radix angelicae sinensis, radix codonopsis, radix rehmanniae preparata, herba cistanche, fructus lycii, poria cocos and fructus crataegi. Wherein the mass ratio of the rhizoma polygonati to the radix angelicae sinensis to the radix codonopsis to the radix rehmanniae preparata to the herba cistanche to the fructus lycii to the poria cocos to the fructus crataegi is (6-20) to (3-15) to (6-20) to (7-15) to (3-11) to (10-15) to (6-14) to (3-11). The composition can effectively improve the muscle strength, muscle quality, exercise tolerance, holding power and coordination function of model animals, improves the muscle structure and fibrosis state, and has a good sarcopenia resistance effect and a good clinical application prospect.

The invention discloses an adhesion / desorption control structure and method for interface reconstruction. The control structure comprises a two-layer structure, wherein the top layer is a dry adhesion structure layer; the bottom layer is an artificial muscle regulation layer, comprising an artificial muscle structure and a support structure; the dry adhesion structure layer is supported on the top of the artificial muscle structure and the support structure, and the bottom of the artificial muscle structure and the support structure are connected to a substrate; the method comprises the following steps: through the action of an external field, the artificial muscle structure contracts and deforms, resulting in reconstruction of the adhesion interface, so that the adhesion interface changes from a high-intensity adhesion state to a low-intensity adhesion state; in the low-intensity adhesion state, the adhesion / desorption structure with interface reconstruction is pulled to separate the dry adhesion structure layer from the adhesion interface of the adhered object, so as to achieve a controllable desorption effect; when the external field is removed, the artificial muscle structure restores its original morphology under the action of elasticity, and the dry adhesion structure layer is restored; the invention realizes flexible regulation of the contact area, thereby achieving high-intensity adhesion and controllable desorption.

The invention provides an artificial muscle structure capable of sensing feedback, and relates to the technical field of artificial muscles, the artificial muscle structure comprises a muscle structure main body, two simulation supports, a first skeleton, a second skeleton and an electric push rod, the muscle structure main body comprises a plurality of artificial muscle fibers, and two ends of the plurality of artificial muscle fibers are connected with tension sensors; the technical key points are as follows: a plurality of artificial muscle fibers are arranged around a first skeleton and a second skeleton to achieve a comprehensive covering effect, and an electric push rod controls the second skeleton to rotate at one end of the first skeleton, so that the plurality of artificial muscle fibers on the inner sides of the second skeleton and the first skeleton in the bending direction are in a stretched and contracted state; the multiple artificial muscle fibers located on the outer side of the bending direction of the second framework and the first framework are in a stretched and then stretched state, the front-back change state of the artificial muscle fibers is monitored by the two tension sensors at the two ends of the artificial muscle fibers, and the activity state of muscles in all directions can be simulated conveniently.