34 results about "Hand tremor" patented technology

This invention discloses an adaptive impedance control method and device for a teleoperated robot system. The method is based on a fuzzy logic-based intelligent control mechanism. It dynamically generates a correction update rate for online compensation adaptive terms through fuzzy inference, based on real-time acquired master-slave state information and preset control parameters. This correction update rate, real-time state information, and preset parameters are integrated, and the core dynamic equations of the preset impedance control model are solved to calculate the robot's target position within the current control cycle. This method, based on the robot following the operator's hand movements, superimposes a position compensation amount optimized by the adaptive impedance control model. When problems such as operator hand tremor or network transmission delay cause a sudden increase in contact force, making it impossible to effectively track the desired contact force, the adaptive impedance control device adjusts the contact force, achieving refined teleoperation control.

The invention discloses a self-adaptive hand tremor evaluation method and device and a storage medium, and belongs to the technical field of tremor evaluation. Comprising the steps of obtaining a current hand video of a hand of a tested person, and determining current tremor intensity of the hand of the tested person and a current shooting influence factor of current shooting of the tested person based on the current hand video; an initial hand video of the hand of the tested person at a preset time before the current time is obtained, an initial shooting influence factor for initial shooting of the tested person is determined based on the initial hand video, and the initial shooting influence factor represents an initial conversion coefficient between a hand pixel point in the initial hand video and the actual distance; based on the current tremor intensity, the current shooting influence factor and the initial shooting influence factor, the real tremor amplitude of the hand of the tested person is determined, and the real tremor amplitude is evaluated.

The invention provides a hand tremor frequency detection method and system based on video analysis and machine learning and electronic equipment, and the method comprises the steps: obtaining a hand video, extracting a key point track, and generating a fusion track signal through principal component analysis; extracting a motion feature vector of the fusion signal, and predicting an optimal signal processing parameter for the current tremor mode by using a pre-trained machine learning model; and performing smooth filtering and frequency domain conversion on the original trajectory by using the parameter, thereby calculating the tremor frequency. According to the invention, the technical problems of insufficient slight tremor detection precision and weak anti-noise capability caused by the adoption of fixed signal processing parameters in the existing video analysis method can be solved.

1. Name of the product in this design: Watch. 2. Purpose of this design: A watch to suppress essential tremor or hand tremor. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention is suitable for the technical field of medical instruments, and provides a trephine tool bit type servo electric hair transplanting pen which comprises an electric hair transplanting pen body, an auxiliary hair transplanting mechanism is arranged on the outer side of the electric hair transplanting pen body, and a power supply mechanism is arranged at the top of the electric hair transplanting pen body; according to the electric hair transplanting pen, the auxiliary hair transplanting mechanism is arranged on the outer side of the electric hair transplanting pen body, so that the hair transplanting process depends on hand control of an operator, and the hair transplanting operation can be stably guided by means of an auxiliary supporting structure formed by the fixing rod, the connecting rod and the telescopic arm; the auxiliary hair transplanting mechanism is reliably locked in different position states, so that the influence of hand shaking on the operation precision is effectively reduced in the hair transplanting process, the stability of the hair transplanting posture can be kept especially in long-time continuous hair transplanting or high-density hair transplanting operation, the hair transplanting consistency and survival rate can be improved, and the overall hair transplanting effect is improved.

This utility model discloses a rail coating thickness measuring instrument, relating to the field of rail inspection technology. The instrument includes a mounting plate, a testing mechanism, and a positioning mechanism, with a rail body positioned below the mounting plate. The instrument moves along the rail body via casters on the mounting plate, eliminating the need for manual operation. This significantly reduces the physical strain and difficulty of prolonged hand-held operation and avoids positional shifts and data fluctuations caused by hand tremors, ensuring the stability and accuracy of coating thickness measurement data. It is particularly suitable for continuous testing of long-distance rails, minimizing interruptions. Simultaneously, guide wheels embedded in grooves on both sides of the rail body provide precise positioning for the thickness measuring instrument as it moves the mounting plate, preventing lateral shift during testing.

The invention discloses a GNN-based hand tremor amplitude identification method. The method comprises the following steps of obtaining videos of a hand of a detected object in two states; the acquired video data are preprocessed; generating a node graph by taking hand joints in the video as nodes; constructing a hand tremor amplitude grade evaluation model; and evaluating a to-be-tested video by using the trained model to generate an evaluation result. As a classification method, the hand joint tremor amplitude recognition method provided by the invention can quickly recognize the hand tremor level with high precision.

The invention belongs to the technical field of medical auxiliary instruments, and particularly relates to an eyedrop instillation assist device which comprises a negative pressure adsorption base, a pupil calibrator and a liquid medicine squeezer. A negative pressure adsorption base, a pupil calibrator and a liquid medicine squeezer are arranged, the negative pressure adsorption base comprises an adsorption long arm, an upper suction cup, a lower suction cup and a squeezing air bag, the pupil calibrator comprises a sliding assembly and a calibration assembly, and the liquid medicine squeezer is provided with a squeezing support, a magnetic suction clamping nozzle, a manual squeezing arm and a linked eyelid supporting structure. By matching with components such as clamping teeth and a damping spring, a series of problems that the hand is easy to shake, the instillation position is inaccurate, liquid medicine is wasted, a bottle opening of a medicine bottle is easy to touch eyes to cause secondary injury, eyelids shield conjunctival sacs, the adaptability and universality of the device are poor, the extrusion force is non-uniform, the supporting is uncomfortable, the arm is soreness and swollen after long-term operation, the device is easy to shift and the like when the patient holds the device for instillation are solved; the effects that instillation is stable and accurate, operation is convenient, fast and safe, and different patients and medicine bottle specifications are adapted are achieved.

This invention provides a rivet disassembly fixture and method, belonging to the field of riveting and fastening technology. It includes a fixture body, a first connecting body, and a driving component. The fixture body has a positioning rod, the lower end of which abuts against the top of the rivet head. The first connecting body is rotatably sleeved on the positioning rod, and a planer gun is mounted on the first connecting body. The driving component is located on the fixture body, and its driving end is connected to the first connecting body, driving the first connecting body to rotate, thereby causing the planer gun to rotate around the positioning rod and cut the rivet head. This rivet disassembly fixture provides a way to prevent direct contact between the operator and the planer gun during operation, thus avoiding the problem of fatigue and hand tremors that can easily lead to damage and ruin of critical components when manually cutting rivets with a planer gun.

This application discloses a data transmission system and method for operation guidance in remote interventional surgery, relating to the field of intelligent sensor technology. The method includes: acquiring a control dataset; calculating the video end-to-end latency, visual matching ambiguity, and operator hand tremor components based on the control dataset; processing the optimal pairing set corresponding to the control dataset and the visual matching ambiguity using a preset filter to obtain motion state estimates; performing temporal cross-correlation analysis on the video end-to-end latency and operator hand tremor components to calculate the delay-tremor coupling strength; constructing a future position prediction distribution model based on the motion state estimates and the delay-tremor coupling strength; superimposing the future position prediction distribution model with a preset anatomical structure model, and displaying the superimposed result on the current surgical video screen to guide the surgeon in remotely controlling the surgical operation from the control terminal. This application improves the safety of remote precision operations.

The invention discloses a spine minimally invasive surgery puncture instrument guiding device in the technical field of medical instruments, and the spine minimally invasive surgery puncture instrument guiding device comprises a fixing seat, the top of the fixing seat is fixedly connected with a first arc-shaped supporting rod, and the first arc-shaped supporting rod is in sliding fit with a second arc-shaped supporting rod; the second arc-shaped supporting rod is in sliding fit with an adjusting seat; a rotating rod is rotationally connected to one side of the adjusting seat, a telescopic rod is in sliding fit with the interior of the rotating rod, the telescopic rod extends out of the rotating rod and is fixedly connected with a guide cylinder, and an anchoring assembly used for fixing a puncture instrument is in sliding fit with the top end of the guide cylinder. The space position and angle of the guide cylinder can be flexibly adjusted, a preset puncture path can be rapidly aligned, a puncture instrument can be fixed, stable supporting is provided when puncture is suspended in the midway, a physician is replaced to hold the device by hand, and drifting of the device due to hand tremor or fatigue is avoided.

The invention discloses an edge deployment method and system for a multi-modal aerospace operation model on lightweight XR glasses, relates to the technical field of augmented reality and edge computing, and particularly relates to an edge deployment method and system for the multi-modal aerospace operation model on the lightweight XR glasses. According to the method, a pre-training model is compressed to a deployable version through submerged space knowledge distillation, intention recognition, emotional value calculation and hand tremor suppression are realized on a local chip of glasses, and the delay is less than 18ms. The original multi-mode signal is destroyed immediately after being coded, and only the subsurface space characteristics are reserved. A small amount of encryption gradients are uploaded to a central server every day for model updating, and hardware fusing is triggered when data risks are detected. The system supports long-term off-line operation, integrates low power consumption and a security mechanism, and is suitable for aerospace operation scenes.

This application discloses a packaging film tear strength testing machine, belonging to the field of packaging film strength testing technology. It mainly includes a machine body, a drive assembly mounted on the machine body, the drive assembly including an electric push rod mounted on the upper end of the machine body, the output end of the electric push rod penetrating the machine body and having a connecting plate installed thereon, a tension / compression sensor fixedly mounted on the lower end of the connecting plate, and a clamping assembly mounted on the machine body, the clamping assembly including two first clamping plates, and a placement platform mounted on the front end of the machine body. This packaging film tear strength testing machine, by setting up the clamping assembly, only requires the film to be laid flat on the placement platform, and fixation is completed through simple snap-fit ​​and tightening actions. The step-by-step operation reduces the difficulty of hand coordination, reduces film deformation caused by hand tremors or uncoordinated operation, improves clamping efficiency and consistency, and enhances the accuracy of subsequent strength testing.

The invention discloses an intelligent anti-shake pen based on vector force guidance and a writing method, and the intelligent anti-shake pen comprises a pen body housing, an internal core support, a slidable writing refill assembly, a tremor suppression module, a vector force stroke auxiliary driving module, a bidirectional interaction module and a main controller. The tremor suppression module monitors the tremor transmitted to the pen body due to the tremor of the hand of a user in real time through a built-in inertial measurement unit and drives the reverse micro-vibration assembly to generate dynamically matched compensation torque, and meanwhile, the vector force stroke auxiliary driving module outputs the compensation torque to the pen body according to a stroke instruction issued by an external intelligent terminal. Physical guiding force which is controllable in direction in the two-dimensional writing plane is applied to the writing refill assembly. And the main controller cooperatively regulates and controls anti-shake and guide, and performs closed-loop communication with an external terminal through the bidirectional interaction module. According to the invention, active anti-shake and active stroke guide functions are combined, so that a hand tremor patient can be effectively helped to write stably, a writing learner is assisted to master a correct stroke order, and the writing stability and accuracy are remarkably improved.

This invention provides a conductive film pressing device, including a pressing machine. The pressing machine includes an operating table, and two sets of positioning mechanisms are symmetrically arranged above the operating table. Each positioning mechanism includes positioning plates symmetrically arranged above the operating table. The positioning plates have an L-shaped structure, and mounting grooves are formed on the inner sidewalls of the positioning plates. The mounting grooves are used to fix the ends of the conductive film. Adjacent positioning mechanisms are connected to the two positioning plates in each positioning mechanism through adjusting components. This invention uses two sets of symmetrical L-shaped positioning plates to engage the ends of the conductive film through the inner mounting grooves, forming a right-angle positioning structure that precisely limits horizontal displacement. This avoids misalignment caused by hand tremors during manual alignment, reduces faults such as poor contact at the pressing interface and circuit breaks, and significantly improves the alignment accuracy and reliability of conductive film end pressing.

This invention provides a touchscreen mobile phone assistive device, method, and apparatus. The device includes an input module, a transmission module, and an accessibility service software module. The input module receives user input operations and transmits the user input information to the accessibility service software module via the transmission module. The accessibility service software module listens to user input information, displays indicator lines on the touchscreen mobile phone application interface showing the correspondence between the input module buttons and icons / text controls in the application, and issues corresponding application operation commands to the application based on user input information. This invention provides a solution to the common gesture operation difficulties faced by elderly people with severely impaired motor perception or pathological hand tremors when using touchscreen mobile phones, thereby improving the user experience, by replacing the touchscreen with an assistive device.

The utility model discloses a filter core integrity detection device relates to filter core detection technical field, specifically includes: detection test bench, liquid tank, left clamping rotary device, right clamping rotary device, filter core, air inlet pipe, the below of filter core is provided with the support mechanism to support the lower surface of filter core, both sides of filter core are provided with trigger mechanism to control the operation of support mechanism. The utility model discloses through support mechanism and left, right clamping rotary device cooperation, realize the automatic support and detection to filter core. After filter core and left clamping rotary device butt joint, the support plate rises the support filter core through the trigger of pressure sensor, liberates the right hand of staff, can solve the problem of arm soreness or hand tremor influence alignment caused by single hand holding up filter core. Before filter core rotates, electric telescopic handle controls the support plate and moves down and separates from filter core end cover, avoids the abrasion of filter core and support plate when rotating, causes the problem of the abrasion particle with liquid flow and enter filter core aperture.

1. Name of the product in this design: Hand-held assistive device (T0006). 2. Purpose of this design: It is used as an auxiliary tool during the model making process for surface painting, handling of fine parts, scribing, etc. The hand-held auxiliary tool provides support and effectively reduces hand tremors, thereby improving production efficiency. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view.

This utility model discloses a user-friendly handheld laser welding machine, including a cross frame with moving units on both sides. A lifting frame is located inside the cross frame, and the lifting frame is hollow, moving up and down along the cross frame. A through groove is provided inside the lifting frame, and a rotating shaft passes through the center of the lifting frame, with a welding torch mounted on the rotating shaft. A limiting unit is provided on the lifting frame to restrict the welding torch from moving to the lifting frame. This user-friendly handheld laser welding machine uses moving units, allowing welders to easily push the entire welding torch with just a handle, reducing labor intensity and preventing hand tremors during prolonged operation. Simultaneously, the limiting unit and fixing bolts allow for quick and effective adjustment and limitation of the welding torch angle and the distance between the nozzle and the weld seam, facilitating adaptation to different welding conditions and improving welding accuracy and efficiency.

The present disclosure relates to a smart glass (101) to stabilize the glass's end-point vibration in the presence of hand tremor and make life easier for patients by reducing vibration effects and allowing the patient to drink without spilling.

The utility model relates to the technical field of auxiliary supports, in particular to an auxiliary support for laparoscopic surgery. According to the technical scheme, the device comprises a bottom plate used for supporting, and a height adjusting assembly used for adjusting the height of the laparoscope is fixedly arranged on the upper surface of the bottom plate; the supporting rod is arranged on one side of the upper end of the height adjusting assembly, and an angle adjusting assembly used for adjusting the angle of the laparoscope is fixedly arranged at one end of the supporting rod; the horizontal adjusting assembly is slidably arranged on the supporting rod and used for adjusting the horizontal position of the laparoscope. According to the laparoscope, the influence of hand shaking and fatigue factors of a doctor or an assistant on the position and angle of the laparoscope can be reduced, the stability and accuracy of an operation are improved, meanwhile, the operation visual angle can be optimized, shielding is avoided, the operation effect is improved, and the operation risk is reduced.

The invention provides an exercise symptom characteristic parameter extraction method based on a hand exercise symptom detection system. The exercise symptom characteristic parameter extraction method comprises the steps of preprocessing, tremor frequency parameter extraction, tremor amplitude estimation and frequency attenuation rate extraction. According to the hand tremor detection method based on multi-sensor fusion and steady-state analysis, the frequency, displacement amplitude and other parameters of tremor can be stably extracted under the complex use conditions of posture change, individual difference, noise interference and the like, and high-precision quantitative detection of hand motility symptom characteristic parameters is achieved.

The invention discloses an evaluation method and evaluation device based on face-hand tremor joint recognition and a storage medium, and belongs to the technical field of tremor evaluation. The face and hand tremor-based joint recognition and evaluation method comprises the following steps: acquiring face video data and hand video data of a tested person; and performing tremor evaluation based on the face video data and the hand video data.

The invention discloses a three-dimensional posture real-time analysis system and method for hand tremor of Parkinson's disease, and relates to the technical field of three-dimensional postures, and the system comprises a unit vector generation module which is used for generating a unit vector of a channel shaft based on the vertical height difference and the horizontal displacement vector between the center of a feeding cup opening and the center of a jack row in a Pu pin plate testing device; and the duration calculation module is used for respectively calculating the instantaneous kinetic energy of the hand of the patient in the normal direction of the plate surface and the instantaneous potential energy of the hand of the patient in the vertical supply and taking fall channel, and comparing the instantaneous kinetic energy with the instantaneous potential energy to obtain the duration of the sinking period in the vertical supply and taking fall channel. According to the method, the pseudo acceleration component generated by the inevitable sinking action of the hand can be effectively identified and eliminated, so that the collected sensor data can more accurately reflect the real motion state of the tremor of the patient.

The invention provides an anti-noise 3D hand motion estimation method applied to idiopathic tremor assessment, the core of the method is a motion perception hierarchical grouping Mama (Motion-aware Hierarchical Grouping Mama, MHG-Mama) network, and a set of complete hand tremor automatic assessment system is integrally formed. According to the method, firstly, high-degree-of-freedom finger joint movement and stable palm joint movement are separated through feature extraction, and accurate finger posture estimation is achieved; the method comprises the following steps of: firstly, acquiring a skeleton sequence, then combining with a layered space-time scanning mechanism in a selective state space model (SSM) of Mama, capturing global motion features and retaining anatomical constraints, and obtaining a skeleton sequence which is smooth and reasonable in time; and finally, objective indexes are introduced based on the predicted skeleton sequence to quantify motion features, and a classifier is applied to perform accurate objective severity rating. Experiments show that the 3D hand posture estimation precision is remarkably improved, the motion sequence noise is reduced, the evaluation variability of clinicians can be reduced, and the method has very high clinical value.

This utility model discloses a tempered glass lamination device, including a mounting frame. An L-shaped plate and a connecting frame are fixedly mounted on the top of the mounting frame. An upper hydraulic push rod is fixedly mounted on the top of the L-shaped plate. A mounting frame is fixedly mounted on the output end of the upper hydraulic push rod. A forward and reverse motor is fixedly mounted inside the mounting frame. An adjustment component is provided at the output end of the forward and reverse motor, and a cutting blade is mounted on the output end of the forward and reverse motor via the adjustment component. The cutting blade moves by the adjustment component, causing it to cut the laminated sheet. The forward and reverse motor rotates the cutting blade 90 degrees via the adjustment component, thus cutting the other two sides of the laminated sheet. This allows for rapid cutting of the laminated sheet, avoiding the need for manual trimming of excess laminated sheet around the edges, which would otherwise take too long, and preventing cutting deviations caused by hand tremors during the cutting process.

The application relates to the field of gas injection devices for medical surgical instruments, in particular to an eye surgery gas injection device. In order to solve the problems that the gas injection amount and speed are difficult to control in the hand injection mode, and the hand tremor directly brings the syringe, so that the needle shakes in the deep layer of the corneal stroma. The following scheme is adopted: a gas injection device outer box; a needle tube fixed on the gas injection device outer box; a piston arranged in the needle tube; a lead screw fixed on the piston, which converts the rotary motion into linear motion; a driving mechanism installed on the gas injection device outer box; a nut in screw transmission with the lead screw, and the rotary motion of the driving mechanism is transmitted to the lead screw, and the piston in the needle tube is uniformly translated. The design effectively solves the problems of limited small bubbles caused by insufficient gas injection amount, and backflow overflow caused by improper gas injection speed in manual gas injection, and can stably maintain the corneal internal pressure.

This invention belongs to the field of wall crack repair technology and discloses a wall crack repair device and method. The repair device includes two rollers located on opposite sides of the nozzle and rotatably connected to a feed pipe. The rotation axes of the two rollers are perpendicular to the axis of the feed pipe, and the net distance between the two rollers is not less than the width of the crack. This ensures that when the two rollers are attached to the wall surface on both sides of the crack and move along the crack's extension direction, the nozzle remains aligned with the crack. By using two rollers, the device moves along the wall surface on both sides of the crack during use. The rollers' contact with the wall surface reduces the risk of instability caused by hand tremors, allowing the user to stably control the nozzle to consistently spray repair material into the crack along its extension direction. This reduces the probability of nozzle deviation from the crack, improving repair quality and efficiency.

1. Name of the product in this design: Detector (Pen-shaped Hand Tremor Detector). 2. Purpose of this design: To detect hand tremors in Parkinson's patients. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.