24 results about "Fine motor" patented technology

The invention relates to the technical field of non-human primate experimental animal upper limb movement ability evaluation and analysis, in particular to a non-human primate experimental animal upper limb movement ability comprehensive evaluation, data acquisition and analysis method. The comprehensive evaluation comprises the steps that upper limb comprehensive exercise ability evaluation is carried out by adopting an upper limb comprehensive exercise ability evaluation scale on the basis of upper limb feeding operation; and the upper limb coarse movement and the finger fine movement can be quantitatively evaluated. The data acquisition and analysis method comprises the following steps: S1, acquiring comprehensive movement time of upper limbs; s2, coordinate values of all key points of the upper limbs on a two-dimensional plane are obtained; s3, acquiring a 3D motion space trajectory; s4, analyzing the movement speed of the upper limb marked key points; s5, the joint angle of the elbow joint and the movement range of the palm, the elbow and the shoulder are obtained; and S6, analyzing to obtain finger key point distance change data. According to the invention, comprehensive objective evaluation and analysis of upper limb coarse movement and finger fine movement of non-human primate experimental animals can be realized.

An eating utensil that prevents food from dropping during loss of fine motor control by way of a retractable cover is disclosed. The head of the eating utensil is operatively associated with the retractable cover so that the latter is movable relative to the former between an open configuration and a closed configuration preventing food from spilling from the head of the utensil regardless of the head's orientation. An actuated arm engages both the utensil head and an elastic membrane of the retractable cover to effectuate selective control between the open and closed configurations. The actuated arm is operatively associated with system circuitry and electronics housed in a handle of the eating utensil, whereby the user can control power to the retractable cover.

The invention provides a fine motor imagery method and system based on hand motion parameter variation, the fine motor imagery method based on hand motion parameter variation can be applied to a cerebral apoplexy rehabilitation experiment / training system, the system comprises an electroencephalogram acquisition device, a motion capture device, a first computer, a second computer and a bearing platform, the fine motion imagination method based on the hand motion parameter change comprises the following steps: S1, building a high-precision motion capture and electroencephalogram synchronous acquisition experiment platform; S2, carrying out a speed-single parameter fine motion task; and S3, carrying out a speed-direction double-vector parameter fine motion task. Based on the fine motion tasks of different motion parameters, the degree of freedom of the motion imagination task is increased, the available normal form of the motion imagination task is expanded, and the brain coding and decoding rule of the vector space motion intention rich in direction, speed and other information can be further understood by adopting the speed-direction fine motion intention experimental design scheme.

An information processing method includes, in a processing part of an information processing device that is connected to a user terminal device via a network: presenting a test related to fine motor movement to the user terminal device; generating an operation result according to an operation with respect to the test on the user terminal device having a touch panel; and generating to-be-provided information regarding a neuromuscular disease based on the operation result that has been acquired.

The invention discloses an intelligent control auxiliary finger device for fine finger exercise training, and relates to the technical field of hand exercise training, the intelligent control auxiliary finger device comprises a base and a wrist frame fixedly arranged on the base, and an auxiliary assembly for multi-mode cooperative composite training is arranged in the wrist frame; a supporting frame used for supporting the wrist of a user is arranged at the movable end of the auxiliary assembly, a frame plate is arranged on the supporting frame, a training assembly is arranged in the frame plate, the movable end of the training assembly is provided with four first fingerstalls and a second fingerstall which are used for being arranged on the four fingers and the thumb in a sleeving mode, and a sponge ball used for hot compress of the palm of the patient is arranged on the frame plate. At least one pressing plate which is pushed by a user to trigger the training assembly is arranged in the auxiliary assembly, three training modes are integrated, three-dimensional space composite training of wrist rotation, palm pitching and finger grabbing is combined, the training is directly benchmarked with complex actions in daily life, and the functional value of rehabilitation is improved.

The utility model relates to the field of hand fine exercise rehabilitation devices, in particular to a hand fine exercise rehabilitation device for elderly patients. The device comprises a shell, a plurality of first sliding holes are formed in the top side of the shell, sliding rods are installed in the first sliding holes in a sliding mode, the same partition plate is fixedly installed in the middles of the multiple sliding rods, a sliding supporting plate is arranged at the bottom of the partition plate, and a plurality of second sliding holes are formed in the sliding supporting plate. The two-way threaded lead screw can be driven to rotate by rotating the adjusting knob, meanwhile, the two sliding blocks can drive the two supporting rods to extrude and open, and therefore the sliding supporting plate can be driven to vertically move, when the sliding supporting plate vertically moves upwards, the strength of the rehabilitation device is increased, and the rehabilitation effect is improved. When the sliding supporting plate vertically moves downwards, the strength of the rehabilitation apparatus is reduced, adjustment is conducted according to different degrees of hand trauma, and therefore the effect of rapidly recovering the hands of the old patient can be achieved.

The invention discloses an online brain-computer interface method for enhancing hand fine motion intention recognition performance based on a multi-parameter coupling feature modulation technology. According to the method, a kinematics parameter (slow / fast), a visual auxiliary stimulation parameter (dynamic / static visual auxiliary stimulation) and different action types are introduced to enhance the separability characteristic difference of the hand fine motion intention. An online system extracts sub-band features and constructs feature vectors by using event-related desynchronization features generated by fine motor imagery through a common spatial pattern method of multi-frequency spatial filtering, and then performs fine intention recognition on the extracted features by using a Riemannian mean minimum distance classifier. And an identification result is fed back to the subject in a picture form. According to the method, the problem that the feature separability is not obvious due to the fact that the spatial resolution of the hand fine motor imagery electroencephalogram feature is low is effectively solved, the recognition accuracy of the hand fine motor intention is remarkably improved, and a motor imagery brain-computer interface instruction set is expanded.

A computer-based education system and method for teaching a user with fine motor coordination impairment to recognize characters. Software residing on a user computing device includes first code containing characters displayable on the display and second code containing sounds playable on the speaker, each of the sounds corresponding to at least one of the characters. The software causes the user computing device to: display at least a portion of the characters in a spaced-apart arrangement each at least at a minimum size with at least a minimum space provided between the displayed characters, the minimum size and the minimum space being large enough to enable user selection by the user with fine motor coordination impairment of one of the characters using substantially only gross motor movements; and play on the speaker the sound that corresponds to the character selected by the user.

A system and method for identifying the presence of an occupant in a vehicle. The system includes a first sensor positioned within a seating area of a seat and having a corresponding sensitive zone passing through the seating area vertically, and a second sensor positioned within a back rest area of the seat and having a corresponding sensitive zone passing through a chest area of an occupant horizontally. The first sensor is adapted to sense coarse movements adjacent to and farther from the sensor while the second sensor is adapted to capture both coarse and finer movements, such as breathing and heartbeats.

This invention discloses a fine motor imagery decoding system based on PINN and multimodal fusion. The system employs a fine motor imagery decoding method based on PINN and multimodal fusion, and includes a multimodal physiological signal synchronous acquisition module, a data preprocessing and correlation analysis module, a dual-stream decoding network module, a physical manifold constraint layer module, an adaptive gradient balance optimization module, and a classification decision module. By deeply embedding biophysical mechanisms into a deep learning framework, this invention addresses the ill-posedness of the source localization inverse problem, overcomes overfitting in small-sample scenarios, and significantly improves the decoding accuracy, robustness, and physiological interpretability of fine hand movements.

The invention relates to the technical field of precision motion, in particular to a precision motion compensation device applying a stick-slip friction mechanism and a control method thereof.The precision motion compensation device comprises a base, a top plate and a PID controller, the top plate and the base are connected through two sets of crossed roller guide rails, and the middle of the base is connected with a stick-slip actuator; the parameters of the PID controller are globally optimized through an eddy current search algorithm, the dynamic performance and the steady-state precision of the PID controller can be remarkably improved, the system can keep stable operation under the non-linear and high-frequency disturbance condition, a two-stage motion control strategy is adopted, when an error value is larger than a preset threshold value, rough positioning is carried out through the maximum step length, and the precision of the system is improved. According to the method, the target position is rapidly approached, the control response speed is improved, when the error is smaller than or equal to the preset threshold value, the fine motion mode after PID controller parameter optimization is switched to, high-precision final positioning is achieved, balance between the response speed and the control precision is achieved, and the comprehensive performance of motion control is improved.

The present invention provides a method, device and equipment for issuing continuous peripheral control instructions based on electroencephalogram signals, wherein the method comprises: inputting real-time whole-brain signal data into an external control decoding model to obtain motion categories and motion parameters; converting motion categories and motion parameters into external control instructions, and issuing real-time instructions based on the external control instructions; the external control decoding model comprises a multi-band feature generator, a Riemann feature extraction module, a feature splicing and vectorization module, a dimensionality reduction module and a multi-head Transformer decoder. Thus, the conversion from discrete motion imagination instructions to continuous motion imagination instructions is realized, and accurate and continuous control of external devices can be achieved. By guiding the user to imagine to a corresponding degree according to different external motion parameters, and using external motion as feedback, the accuracy of fine motion imagination classification is improved, and the fluency of electroencephalogram control of external devices and the user's interactive experience are significantly enhanced.

The utility model discloses an integrated control type electric-hydraulic pusher, relates to the technical field of electric-hydraulic pushers, and aims to solve the problems that the motion control precision is low, only simple reciprocating control can be realized, and the requirement on fine motion is difficult to meet; the utility model relates to an integrated control type electro-hydraulic push rod which solves the problems that in the prior art, an existing electro-hydraulic push rod is in an integrated control mode, a multi-push-rod control mode lags behind, a centralized control mode is adopted, independent control and real-time fine adjustment capacity on a single push rod are lacked, and system flexibility and adaptability to environmental factors are limited, and the integrated control type electro-hydraulic push rod comprises a power unit, an oil cylinder and an integrated valve group, and the oil cylinder is located between the power unit and the integrated valve group; the integrated valve group is connected with the oil cylinder through an oil pipe; the integrated valve set further comprises an integrated valve block, a semicircular groove matched with the oil cylinder in shape is formed in one side of the integrated valve block, and a first port P and a first port T which are used for being connected with a power unit are formed in the other side of the integrated valve block, so that the electric-hydraulic push rod can conveniently and rapidly control input and output. And detected real-time data such as pressure, temperature, displacement and the like are output to the display screen.

The utility model provides a hand-brain coordination training device, and relates to the technical field of hand-brain coordination training, the device comprises a device body, the front side of the device body is provided with a touch screen; a first training module used for training finger strength and bending degree and a second training module used for training fingers to do fine movement are installed on the back face of the device body. A main board is installed in the device body, and the touch screen, the first training module and the second training module are connected with the main board. According to the technical scheme, the touch screen on the front face of the device body is matched with the first training module and the second training module on the back face of the device body, so that hand-brain coordination flexible training is achieved, and the purpose of improving hand-brain coordination cognition is achieved.

The invention discloses a fine exercise assessment and rehabilitation system and method based on a mixed reality technology. The system comprises a mixed reality glasses module used for data acquisition and data analysis and providing interaction and feedback functions at the same time; the arm motion capture module is used for collecting motion data of the arm; a depth camera is arranged in the mixed reality glasses module, and a real scene data acquisition module, a virtual-real registration module, a hand data acquisition module, a hand posture recognition module, a real-time tracking module, a key node detection module, an evaluation and analysis module, a display and interaction module, a teaching module and a multi-mode feedback module are further arranged in the mixed reality glasses module. By means of the mixed reality technology, in combination with precise posture tracking, visual multi-mode guiding and optimized interactive design for the cognitive impairment patient, automatic and gamified evaluation and auxiliary rehabilitation of the fine movement ability of the upper limbs and the hands are achieved.

A playful and therapeutic device for the rehabilitation of fine manual motor skills; specifically for the rehabilitation of patients with rheumatic, traumatic and neurological pathologies who have fine motor sequelae in the wrist, palm and fingers of both hands; characterized by having a cultural theme related to the Guelaguetza of Oaxaca and by comprising a container with a lid and handle that will serve to store and transport other components such as a puzzle, cylindrical pieces with and without slots, cards and tweezers.The device facilitates playful and therapeutic activities for mental, sensory, and physical stimulation; such as placing and removing the lid of the container to perform pronation and supination movements and palmar grasp; assembling a puzzle to perform pronation and supination movements, palmar grasp, four-finger pinch, and visuo-manual coordination; fitting cylinders into holes to perform two-finger pinch, three-finger pinch, and visuo-manual coordination movements; inserting cards into slots to perform pronation and supination movements, two-finger pinch, and visuo-manual coordination; and hooking tweezers onto a surface to perform pronation and supination movements, two-finger pinch, and visuo-manual coordination.

Provided is a rotating device 100 capable of positioning a rotating member 102 at a target angle position with high accuracy. The rotating device 100 comprises a fine movement mechanism 109 that is provided with a base member 110 and a coarse movement mechanism 101 that is provided with a housing 104 and a rotating member 102 at least part of which is housed in the housing 104 and that is disposed on the base member 110. The rotating member 102 is capable of rotating about a rotating member axis 103 with respect to the housing 104, and the entire coarse movement mechanism 101 is capable of rotating about the rotating member axis 103 with respect to the base member 110.

Data regarding typing by a user may be collected and analyzed in order to assess one or more health conditions or functional states of the user. Each health condition that is assessed may be a disease or a symptom of a disease. For instance, based on the typing data, a computer may assess the presence, severity or probability of, or a change in, one or more symptoms such as: mild cognitive impairment; dementia; impairment of fine motor control; impairment of sensory-motor feedback; or behavioral impairment. A computer may calculate keystroke tensors that encode information about the typing. A computer may select or derive features from the keystroke tensors. These features may be fed into one or more machine learning algorithms, which in turn may output an assessment of a health condition or functional state of the user.

The bouncing toy comprises a base, a plurality of small balls, an elastic piece and a cover shell, the elastic piece is connected with the base and has a first state and a second state, the concave degrees of the middle, facing the base relative to the periphery, of the elastic piece are different, and the elastic piece is constructed to be capable of being switched to the second state under driving of external force and reset to the first state when the external force is eliminated; the cover shell is movably connected with the base, a bouncing space for containing the small ball is formed between the cover shell and the elastic piece, and the cover shell can drive the elastic piece to be switched to the second state. According to the bouncing toy provided by the embodiment of the utility model, the small ball between the housing and the elastic sheet can be driven to bounce by pressing and loosening the housing, and the bouncing toy is simple to operate and suitable for young infants to play. An infant can develop finger flexibility and fine motion control ability through pressing and loosening actions with a hand; by observing the bounce process of the small ball, vision and hearing can be stimulated, sensory development is promoted, and the perception ability is enhanced.

The utility model relates to the technical field of parallel sealing welding machines, and discloses a pressing device for a parallel sealing welding machine, which comprises a base, two first connecting plates are symmetrically and fixedly connected to one side of the upper end face of the base, first supporting arms are arranged on the inner sides of the two first connecting plates, and first rotating assemblies are arranged on the opposite outer walls of the two first connecting plates. The end, away from the first connecting plate, of the first supporting arm is fixedly connected with a second rotating assembly, the other end of the second rotating assembly is fixedly connected with a second supporting arm, the end, away from the second rotating assembly, of the second supporting arm is fixedly connected with a third rotating assembly, and the other end of the third rotating assembly is fixedly connected with a third supporting arm. According to the pressing device, accurate control is achieved through the multiple driving motors and the multiple rotating shafts, fine movement of the supporting arms and the pressing assembly is ensured, therefore, a workpiece is accurately and stably pressed, and machining errors are avoided.

In order to shorten the standby time of a fine-motion mechanism and effectively reduce vibration of the fine-motion mechanism, the present invention proposes a technique for controlling a fine-motion mechanism, comprising: setting the operating speed of the fine-motion mechanism during a first transition, which is a transition of the fine-motion mechanism from a first operating state to a second operating state different from the first operating state, and during a second transition, which is a transition from the second operating state to the first operating state, to a speed lower than the operating speed of the fine-motion mechanism in the first operating state and the second operating state by a period of time equivalent to (N - 1 / 2) cycles (N is a natural number) of the principal natural vibration of the fine-motion mechanism that occurs during the first transition or during the second transition; and causing the fine-motion mechanism to operate at the operating speed in the first operating state or the second operating state after the period of time equivalent to (N - 1 / 2) cycles has passed, and thus reducing vibration of the fine-motion mechanism that occurs during the first transition and during the second transition (see Fig. 2B).

A wheelchair having at least one force element that is elastically deformable, wherein deformation of the at least one force element becomes more and more intense with the application of increasing force, resulting in natural damping of the coupled-in force, which may be detected by a sensor such that the wheelchair according to the invention may be controlled in a targeted manner for fine movements as well as for faster, coarser movements.

An apparatus including a game for maintaining user's interest to extend the use of the game while developing fine motion control of the user. The game includes a removable maze placed upright adjacent the tailgate such that a gap is created between the maze and the tailgate. A transparent cover is placed on the upright maze, creating a second gap between the upright maze and the cover. A control member is located within the second gap and is used to guide the ball along a labyrinth path of the game. If a user fails, the ball drops from the upright maze and from a first gap between the maze and the tailgate. The first and second ball return devices may optionally be present at the top and bottom of the apparatus. The upright maze can be removed from the device and replaced with a different upright maze having a different maze path.

The utility model relates to the technical field of unmanned aerial vehicles, and provides a telescopic underwater unmanned aerial vehicle vector propulsion device. The propelling device is arranged on a vehicle body of the underwater unmanned aerial vehicle and comprises a telescopic mechanism, two underwater propellers, two hatch covers and two tilting mechanisms. Each hatch cover is fixed to one underwater thruster, and each underwater thruster is coupled to the output end of one tilting mechanism, so that each underwater thruster can rotate along with the output end of the coupled tilting mechanism. The tilting mechanism can enable the underwater propeller to rotate around the output axis of the tilting mechanism, so that the thrust direction of the underwater propeller can be adjusted as required. The propelling device can automatically stretch out of or retract into the unmanned aerial vehicle body according to the working requirements of the underwater unmanned aerial vehicle. When the underwater unmanned aerial vehicle needs to carry out fine movement, the propelling device automatically stretches out of the vehicle body, and support is provided for underwater movement of the underwater unmanned aerial vehicle.