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32 results about "Muscle architecture" patented technology

Muscle architecture is the physical arrangement of muscle fibers at the macroscopic level that determines a muscle’s mechanical function. There are several different muscle architecture types including: parallel, pennate and hydrostats. Force production and gearing vary depending on the different geometries of the muscle. Some parameters used in architectural analysis are muscle length (Lm), fiber length (Lf), pennation angle (θ), and physiological cross-sectional area (PCSA).

Surgical correction of human eye refractive errors by active composite artificial muscle implants

Surgical correction of human eye refractive errors such as presbyopia, hyperopia, myopia, and stigmatism by using transcutaneously inductively energized artificial muscle implants to either actively change the axial length and the anterior curvatures of the eye globe. This brings the retina / macula region to coincide with the focal point. The implants use transcutaneously inductively energized scleral constrictor bands equipped with composite artificial muscle structures. The implants can induce enough accommodation of a few diopters, to correct presbyopia, hyperopia, and myopia on demand. In the preferred embodiment, the implant comprises an active sphinctering smart band to encircle the sclera, preferably implanted under the conjunctiva and under the extraocular muscles to uniformly constrict the eye globe, similar to a scleral buckle band for surgical correction of retinal detachment, to induce active temporary myopia (hyperopia) by increasing (decreasing) the active length of the globe. In another embodiment, multiple and specially designed constrictor bands can be used to enable surgeons to correct stigmatism. The composite artificial muscles are either resilient composite shaped memory alloy-silicone rubber implants in the form of endless active scleral bands, electroactive ionic polymeric artificial muscle structures, electrochemically contractile endless bands of ionic polymers such as polyacrylonitrile (PAN), thermally contractile liquid crystal elastomer artificial muscle structures, magnetically deployable structures or solenoids or other deployable structures equipped with smart materials such as preferably piezocerams, piezopolymers, electroactive and eletrostrictive polymers, magnetostrictive materials, and electro or magnetorheological materials.
Owner:ENVIRONMENTAL ROBOTS

Structure decoupling driven variable-stiffness soft hand

The invention relates to the technical field of intelligent robots, in particular to a structure decoupling driven variable-stiffness soft hand, which comprises a palm base. A long finger and two short fingers are arranged on three electrical interfaces in the front end of the palm base; each finger comprises a fingertip, a plurality of finger knuckles and a finger root arranged sequentially at intervals; a framework structure is connected among the fingertip, the plurality of finger knuckles and the finger root; muscle-like structures and muscular tissues are arranged on the fingers; and theframework structures, the muscle-like structures and the muscular tissues are made of SMA (shape memory alloy) materials. The structure decoupling driven variable-stiffness soft hand provided by the invention is reasonable in structure; and the SMA drives various parts of the fingers to act, and meanwhile, an electric current changes a temperature of the shape memory alloy so as to control a Youngmodulus, so that the stiffness of the fingers is variable, a more accurate grabbing action can be obtained; and the structure decoupling driven variable-stiffness soft hand has a simpler structure and solves the problems of mechanical fatigue and wear, and risks caused during an interaction process of a manipulator and people can be further reduced, so that a practicable structure model for softhand development is provided.
Owner:WUHAN UNIV OF TECH

Compound water retaining agent capable of improving bullfrog quality and application method of compound water retaining agent

The invention provides a compound water retaining agent capable of improving bullfrog quality and an application method of the compound water retaining agent. Raw materials of the compound water retaining agent comprise polyphosphate and sodium bicarbonate, polyphosphate is basic, can increase pH of bullfrog and can also binds with polyvalent metal ions binding with structural protein of muscle, so that carboxyl groups get free from protein, the protein is enabled to be negatively charged, and electrostatic repulsion between the carboxyl groups is increased. Polyphosphate can provide higher ionic strength, can improve solubility of myofibrillar proteins and the like, is beneficial to transformation of muscle protein into a loose state and can also dissociate actomyosin, water retention ofmeat is improved, and tenderness of the meat is improved. Sodium bicarbonate can also provide a basic environment and improve meat bulkiness, so that the protein structure of the treated bullfrog getslooser, the water retention is improved substantially, the tenderness is improved, eating quality of the bullfrog is improved, and the market of the bullfrog is further expanded.
Owner:新派(上海)餐饮管理有限公司

Stretching type pneumatic artificial muscle

The invention discloses the stretching type pneumatic artificial muscle. The pneumatic artificial muscle comprises an upper fixing disc, an inner layer rubber tube, an I-shaped connector, an upper sliding shaft, fixed rods, a mesh grid, an outer layer rubber tube, an upper moving disc, a lower moving disc, a lower sliding shaft and a lower fixing disc, wherein the outer surface of the fixed rods are smooth, the two ends of the fixed rods are provided with threads, one ends of the fixed rods are connected with the upper fixing disc, and the other ends of the fixed rods are connected with the lower fixing disc, and the four fixed rods, the upper fixing disc and the lower fixing plate form a fixing structure; the pneumatic muscle is composed of the inner layer rubber tube, an oblique crossingmesh grid and the outer layer rubber tube, the pneumatic muscles at the upper end are fixedly connected with the upper fixing disc and the upper moving disc, and the pneumatic muscle at the lower endis fixedly connected with the lower moving disc and the lower fixing disc; and the pneumatic muscles are inflated and then expands and then drives the moving discs to move in the axial direction. Thestretching type pneumatic artificial muscle is connected between the moving discs and the sliding shafts through the I-shaped connector, so that the complexity of the artificial muscle structure is greatly reduced, the overall structure is more compact, and the stability is high.
Owner:BEIJING UNIV OF CHEM TECH

Magnetic simulation muscle structure

InactiveCN109676599AScalability can be controlledHigh accelerationProgramme-controlled manipulatorTime extensionLow noise
The invention discloses a magnetic simulation muscle structure which is provided with a first module, and a second module arranged in the first module; and the first module and the second module can be moved relatively through electromagnetic repulsion force. The simulation muscle structure is a simulation muscle device using the electromagnetic repulsion force, and a traditional driving mode using a servo motor as a robot is changed completely. Compared with another driving mode using electromagnetic attraction, the magnetic simulation muscle structure has the effects that the controllable expansion degree is achieved on the expansion stroke of simulation muscle is achieved, while the electromagnetic attraction can only attract and release once, namely that only one-time extension and contraction can be achieved, and the expansion degree of the electromagnetic attraction can not be controlled. Thus, the magnetic simulation muscle structure is achieved by using the repulsion force of amagnetic field, namely that not only can any expansion degree of the simulation muscle be achieved, but also control over the size of the required force can be achieved. Therefore, the magnetic simulation muscle structure has the advantages of high acceleration, low mechanical wear, small size, light weight, low noise, energy saving, high response speed, controllable expansion degree and other excellent driving characteristics.
Owner:广东协禾医业有限公司
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