43 results about "Postural control" patented technology

The invention relates to the technical field of medical informatics, in particular to a construction method of an osteoporotic fracture risk prediction model. The method comprises the following steps: acquiring an included angle between a foot and the ground, a step speed and a CT image of a target person in a monitoring process; dividing pixel points in the CT image into a plurality of bone tissue areas; according to the shape distribution characteristics of the edge lines in the bone tissue area, bone characteristic values of the bone structure are obtained; obtaining a posture control factor of each gait according to the included angles between the left and right feet of the target person in each gait and the ground; determining an abnormal posture index of each gait in combination with the posture control factor and the corresponding step speed; obtaining a control disorder coefficient of each time period according to the numerical distribution characteristics and the change characteristics of all the posture control factors in each time period; and determining an osteoporosis evaluation value by integrating the bone characteristic value and the disorder control coefficient of the skeleton structure. The accuracy of the bone comprehensive evaluation result of the target person is improved.

Described are surgical systems comprising a robotic device comprising a cutting tool, an actuation unit having at least two motorized rotational degrees of freedom about respective rotational axes that are substantially orthogonal to each other, and configured for adjusting a position and orientation of the cutting tool relative to each target plane, a planar mechanism connecting the last segment of the actuation unit to the cutting tool, a passive articulated lockable holding arm supporting the actuation unit, a tracking unit configured to determine in real time the pose of the cutting plane with respect to the coordinate system of the anatomical structure, a control unit configured to determine the pose of the cutting plane with respect to the target plane and to control the actuation unit to bring the cutting plane into alignment with the target plane.

Aspects of the present invention relate to a control system (200) for a vehicle (100). The vehicle (100) comprises a cabin (102) with one or more movable seat elements (116) for adjusting the configuration of a vehicle seat (104) and thereby adjusting a pose of a user of the vehicle (100). The control system (200) comprises one or more processors (220) collectively configured to: receive one or more signals indicative of one or more anatomical measurements of the user; in dependence on the one or more signals, determine a musculoskeletal model (300) taking the form of an anatomy-based joint model comprising a set of body features (310), the set of body feature (310) comprising one or more anatomical joints (314) and a plurality of rigid elements (312) connected by the one or more anatomical joints (314); determine a pose of the musculoskeletal model (300) when seated in the vehicle seat (104) with one or more of the body features (310) in respective allocated positions, each allocated position being arranged within a respective space envelope (500) associated with said body feature (310); wherein each respective pose comprises: one or more posture angles defined by the musculoskeletal model (300); and a relative position of one or more of the body features (310); and in dependence on the determined pose, output one or more control signals to at least one of said one or more moveable seat elements (116) to adjust the configuration of the vehicle seat (104) for supporting the user in the determined pose.

To provide a posture control electric wheelchair that provides less adverse effect due to posture control of a chair part.SOLUTION: A posture control electric wheelchair 1 is arranged with left and right swing shafts 6a, 6b and a front and rear swing shaft 7. The left and right swing shafts 6a, 6b are arranged between a chair part 2 and a chassis part 3 of the posture control electric wheelchair 1 at a position at a center of a right and left direction of the chair part 2 and along a right and left center line CLr extending in a front and rear direction. The front and rear swing shaft 7 operates integrally with the left and right swing shafts 6a, 6b and is arranged in the vicinity of a position S in conformity with a vertical line suspended from a sacral position of a user M seating on the chair part 2.SELECTED DRAWING: Figure 1

Systems and methods for gesture control are described. In some embodiments, a system for assessing a physiological state of a user. The system may include the wearable device comprising one or more electrodes configured to be disposed adjacent to an external surface of the skin portion. A first timestamp may be determined. The first timestamp may indicate a first time at which a stimulus is presented to the user. A second timestamp indicating a second time at which the biopotential signals indicate an intention by the user to perform a responsive action may be determined. Based at least on the first timestamp and the second timestamp, determine a subject response time for the user. The subject response time may be compared to a baseline response time for the user to generate an assessment of a physiological state of the user.

According to a surgical instrument and a method and device for controlling the posture thereof, a manipulation value according to user input to change a posture of an end tool included in the surgical instrument may be obtained, first posture information about a current posture of the end tool at the time of obtaining the user input may be obtained, and a motion of the end tool based on the manipulation value and the first posture information may be controlled so that a target posture according to the user input is implemented.

A method includes rendering a first field of view of a scene in accordance with a determination that the posture of the user corresponds to good posture, and rendering a second field of view of a scene in accordance with a determination that the posture of the user corresponds to bad posture.

To evaluate how an evaluation target, such as a person, controls posture on the basis of acceleration measured in a trunk of the evaluation target.SOLUTION: Acceleration information is acquired for each unit time from a plurality of acceleration sensors mounted on a trunk of an evaluation target, evaluation acceleration information and evaluation instantaneous phase information are generated by removing a high frequency noise from the acceleration information collected along time series, at least one of a similarity of acceleration information between acceleration sensors and a degree of synchronous of instantaneous phases of acceleration sensors is calculated on the basis of the evaluation acceleration information and the evaluation instantaneous phase information, and evaluation information indicating how the evaluation target controls posture is generated and output.SELECTED DRAWING: Figure 1

Disclosed are a posture control apparatus and method for a rehabilitation exercise robot. The posture control apparatus for a rehabilitation exercise robot according to the present invention includes: a sensing unit which senses the posture of a user; an output unit for outputting feedback information for correcting the posture of the user; and a processor which collects the joint positions of the user on the basis of sensing information sensed by the sensing unit, determines whether the posture of the user is a compensatory movement on the basis of the joint positions, generates feedback information according to the determination result, and outputs the feedback information through the output unit.

Systems and methods for gesture control are described. In some embodiments, a system for assessing a physiological state of a user. The system may include the wearable device comprising one or more sensors configured to be disposed adjacent to an external surface of the skin portion. A first timestamp may be determined. The first timestamp may indicate a first time at which a stimulus is presented to the user. A second timestamp, which indicates a second time at which physiological data indicates a responsive action of the user, may be determined. Based at least on the first timestamp and the second timestamp, determine a subject response time for the user. The subject response time may be compared to a baseline response time for the user to generate an assessment of a physiological state of the user.

A method includes rendering a first field of view of a scene in accordance with a determination that the posture of the user corresponds to good posture and rendering a second field of view of a scene in accordance with a determination that the posture of the user corresponds to bad posture.

The invention belongs to the technical field of human body posture monitoring, and particularly relates to a rehabilitation real-time posture control system and method with temperature feedback, and the method comprises the steps: fixing an inertial measurement unit on the waist, collecting motion data in real time, and transmitting the motion data to an upper computer; the upper computer analyzes data through an LSTM neural network model, and recognizes posture deviation and imbalance trends in combination with a sliding window technology; when abnormity occurs, a feedback mechanism is triggered, the temperature of the Peltier element is adjusted through a PID control algorithm and a PWM signal, and a user is reminded to adjust the posture through cold / thermal stimulation; after adjustment, data are transmitted to an upper computer in real time, and LSTM model parameters are dynamically updated to form closed-loop control. The technical problems that an existing balance training device is insufficient in prediction precision, delayed in feedback response and lack of dynamic feedback are solved, the prediction precision of the balance training device is improved, the feedback response delay is reduced, the balance training device has the advantages of being high in precision, low in delay and easy to operate, and real-time posture monitoring and personalized training feedback are facilitated.

According to a surgical instrument and a method and device for controlling the posture thereof, a manipulation value according to user input to change a posture of an end tool included in the surgical instrument may be obtained, first posture information about a current posture of the end tool at the time of obtaining the user input may be obtained, and a motion of the end tool based on the manipulation value and the first posture information may be controlled so that a target posture according to the user input is implemented.

Surgical systems and methods involve a robotic manipulator with a force sensor and a surgical tool that holds a screw. The screw has a known thread geometry. A navigation system tracks a pose of a target anatomy. Controller(s) store the known thread geometry and control the robotic manipulator to maintain the rotational axis on a planned trajectory with respect to the target anatomy based on the tracked pose of the target anatomy. The controller(s) detect, with the force sensor, a force applied by a user. The controller(s) control a rotational rate of the surgical tool to rotate the screw about a rotational axis and an advancement rate of the surgical tool to linearly advance the screw along the planned trajectory. The rotational rate and the advancement rate are based on the force applied by the user and are proportional to the known thread geometry.

The invention discloses a stroke posture control training method and system based on a virtual reality technology, and belongs to the technical field of stroke rehabilitation training. The problems that in traditional posture control training, the training effect is poor, the enthusiasm of a patient is not high, and personalized training is lacked are solved. The method comprises the following steps: S1, constructing a stroke posture training database; s2, generating a VR virtual evaluation scene based on a stroke posture training database according to the rehabilitation target of the patient and the severity of the illness state; s3, performing posture control training according to the generated VR virtual evaluation scene, and capturing and recording posture information of the patient in the training process; and S4, analyzing and processing the acquired posture information, and generating a posture control training plan according to an analysis result. The VR technology and the CPPC technology are combined, wide application of the CPPC technology can be promoted, the requirement of most patients for pursuing high-quality rehabilitation training is met, and the situation of medical resource shortage is relieved.

Surgical systems and methods involve a robotic manipulator with a force sensor and a surgical tool that holds a screw. The screw has a known thread geometry. A navigation system tracks a pose of a target anatomy. Controller(s) store the known thread geometry and control the robotic manipulator to maintain the rotational axis on a planned trajectory with respect to the target anatomy based on the tracked pose of the target anatomy. The controller(s) detect, with the force sensor, a force applied by a user. The controller(s) control a rotational rate of the surgical tool to rotate the screw about a rotational axis and an advancement rate of the surgical tool to linearly advance the screw along the planned trajectory. The rotational rate and the advancement rate are based on the force applied by the user and are proportional to the known thread geometry.

Device for controlling the posture (10) of a driver, with which a vehicle is equipped, the device comprising: a memory (11) that stores position information of a seat according to the gender, stature, seat size and body type of a driver; an information collector (15) which detects the gender, stature, seat size and weight of the driver; a seat size section determiner (13) configured to determine the seat size section (A1, A2, A3) of the driver based on the detected stature and seat size of the driver; a body mass index (BMI) determiner (14) configured to determine the driver's body type segment based on the detected driver's gender, stature, and weight; and a controller (16) configured to determine the seat position according to the gender, stature, seat size section (A1, A2, A3) and body type section of the driver based on the position information of the seat stored in the memory (11).

This application provides a method and system for gait and cognitive training adjustment for patients with cerebral small vessel disease. The method superimposes a preset cognitive task during the patient's normal walking process, simultaneously collecting gait and cognitive data under dual-task conditions to obtain dual-task data. Based on gait baseline data, cognitive baseline data, and dual-task data, a dual-task interference index is calculated. Postural control training is then performed on the patient using a balance training device. The perturbation parameters and visual feedback parameters of the balance training device are adaptively adjusted according to the dual-task interference index grading results. Within the training cycle, the dual-task walking phase is repeatedly executed at a preset retest frequency, updating the dual-task interference index and its corresponding grading results. Based on the updated grading results, the balance device training parameters for the next training cycle are dynamically adjusted. This method can suppress the influence of learning effects on training results during the dual-task training phase, improving the accuracy of the training control process for patients with cerebral small vessel disease.

The invention provides a posture control method of a conveyed object and a conveying system using the posture control method, which can improve the reliability of posture control of the conveyed object compared with the prior art. The present invention relates to a method for controlling the posture of a conveyed object, which is a method for controlling the conveyance posture of the conveyed object by blowing an air flow toward the conveyed object on a conveyance path while conveying the conveyed object in a conveyance direction along the conveyance path, in which the conveyed object is floated by a first air flow on the conveyance path and the conveyed object is floated by a second air flow on the conveyance path. The floating conveying object is rotated by a second air flow on the conveying path, thereby changing the posture of the conveying object.

The invention discloses a vestibular dysfunction posture control evaluation method and evaluation system, and belongs to the technical field of medical treatment, and the method comprises the following steps: S1, a three-dimensional measurement camera collects an omnibearing human body image of an evaluator in a fixed state; s2, constructing a first human body three-dimensional model; s3, the three-dimensional measurement camera collects a reset all-around human body image after the assessor moves; s4, constructing a second human body three-dimensional model; s5, calculating the body deviation degree of the evaluator based on the first human body three-dimensional model and the second human body three-dimensional model; s6, evaluating the posture control advantage and disadvantage degree of the evaluator based on the calculated body deviation degree of the evaluator, namely the vestibular dysfunction posture control advantage and disadvantage degree; according to the method, any instrument does not need to be bound on the body of the evaluator, the evaluator cannot be influenced in the aspect of body posture control, meanwhile, the influence of swinging of the evaluator in the body posture control process is avoided, and the evaluation precision of the vestibular dysfunction posture control quality degree can be improved.

The utility model relates to the technical field of training devices, in particular to a head and neck posture control training device which comprises a mounting seat, a counterweight plate is inserted into the inner surface of the mounting seat, a top plate is arranged on the inner surface of the mounting seat, a base is arranged on the lower surface of the mounting seat, and an arc-shaped groove is formed in the lower surface of the base. By arranging the mounting seat, the top plate, the counterweight plate and the like, a user can insert the top plate into the mounting seat to fix the counterweight plate, and the mounting seat is connected with the base through the spring, so that the spring and the mounting seat can give a feedback to the user when the head of the user abuts against the base, and the user can feel more comfortable when the head of the user abuts against the base. The spring can increase the instability of the mounting base, once the head or the cervical vertebra deviates, the mounting base inclines and swings, a user can quickly recognize whether the head and the neck are in a neutral position or not through the top plate in front of the mirror, and the user is helped to adjust the posture to maintain the neutral position of the head and the cervical vertebra.

The invention discloses a CPR VR training system with real-time posture control and adaptive tactile feedback, and relates to the technical field of three-dimensional vision. Compared with the conventional CPR (cardiopulmonary resuscitation) training system, the system disclosed by the invention has the advantages that the problems of high cost, equipment dependence and insufficient whole body posture perception are solved; based on human body motion capture of a monocular camera, accurate hand tracking is achieved by integrating a VR controller, whole body posture data of a user can be obtained in real time, reliable posture feedback is provided, and the user is helped to conduct self-correction in the training process. A flexible tactile feedback module is designed, when the pressing depth reaches the standard, tactile feedback is provided through a flexible actuator, and the sense of reality of training is enhanced. An artificial respiration detection module is further designed, the air blowing amount of a user is monitored through a microphone and compared with airflow data in a baseline database, the accuracy and standardization of artificial respiration are ensured, and the completeness of CPR training is achieved.

The invention discloses a wearable posture control system with high precision and real-time tactile feedback, and relates to the technical field of posture monitoring, the system comprises a detection unit, a control unit and a feedback unit, the detection unit and the feedback unit are installed on the same waistband, and the control unit is connected with the detection unit. An inertial measurement unit of the detection unit outputs a three-axis attitude angle after Kalman filtering, and a control unit adopts a double-axis inclination judgment algorithm to distinguish forward inclination, backward inclination and side inclination directions and intensities in real time, and generates a feedback instruction to drive a linear resonance actuator corresponding to the feedback unit; the adjacent actuators cooperatively vibrate to generate funnel illusion virtual touch points, a user is reminded, the body posture is corrected in time, and the system is light in structure, rapid in response and capable of correcting the posture in real time and reducing the falling risk in exercise and rehabilitation training and has good application prospects.

To provide a vehicle seat capable of performing massage and posture control for a seated person while reducing uncomfortable feel of a bladder.SOLUTION: A seat cushion includes: an upper pad 10; a bladder 30 arranged on a seat rear side of the upper pad 10 and pressing against the upper pad 10 from the seat rear side by expansion; and a lower pad 20 for supporting the bladder 30 from the seat rear side. Due to this configuration, the upper pad 10 is arranged on a seat front side of the bladder 30. Accordingly, uncomfortable feel caused by the bladder 30 is less likely to occur. Pressure generated by expansion of the bladder 30 is easily transmitted to the upper pad 10 due to the support by the lower pad 20. This enables massage and posture control for a seated person to be performed while reducing uncomfortable feel of the bladder 30.SELECTED DRAWING: Figure 4

A system for surgical planning and assessment of spinal deformity correction is provided that has a spinal imaging system and a control unit. The spinal imaging system is configured to collect at least one digitized position of one or more vertebral bodies of a subject. The control unit is configured to receive the at least one digitized position, and calculate, based on the at least one digitized position, an optimized posture for the subject. The control unit is configured to receive one or more simulated spinal correction inputs, and based on the inputs and optimized posture, predict an optimal simulated postoperative surgical correction.

The present disclosure discloses a system and method for controlling a robot to perform a task. The robot is a legged robot that includes a torso and a plurality of legs for supporting the torso above a ground surface. The system is configured to collect a reference trajectory that defines a sequence of states of the robot performing the task, and to execute a stance controller configured to compute and apply reaction forces of the plurality of legs of the robot in contact with the ground surface to push the torso based on the reference trajectory. The system is also configured to execute a swing controller of a plurality of swing controllers to swing a leg in response to detecting an imbalance in relative positions between the torso of the robot and the feet of the legs of the robot that is indicative of an imbalance in support of the torso of the robot above the ground surface.

The invention provides a posture control evaluation system for nervous system diseases, and relates to the technical field of posture control evaluation. The method comprises the steps that a joint angle module obtains a joint angle through a joint goniometer; the joint activity scoring module is used for determining a joint activity score; the joint coordinate module is used for acquiring a plurality of joint coordinates; the gravity center scoring module is used for determining a gravity center score according to the joint coordinates; the plantar pressure data module is used for acquiring plantar pressure data of a plurality of sampling points at a plurality of motion simulation moments through the pressure insole; the pressure scoring module is used for determining a pressure score according to the plantar pressure data; and the posture control scoring module is used for carrying out weighted average on the joint motion range score, the gravity center score and the pressure score to determine a posture control score. According to the invention, the posture control function under the conversion of different motion states and different motion modes can be accurately evaluated according to the joint motion range score, the gravity center score and the pressure score.

An electronic device is provided. The electronic device includes a display, a communication circuit, and at least one processor configured to recognize a user's initial posture based on at least one of motion sensor signals of a first external electronic device and a second external electronic device received through the communication circuit, control the first external electronic device to receive a first motion sensor signal, obtain the user's workout data based on the first motion sensor signal when the initial posture satisfies a designated condition, control the second external electronic device to receive a second motion sensor signal when the user's movement is not recognized based on the first motion sensor signal and obtain the user's workout data based on the second motion sensor signal, and provide the workout data through at least one of the display or the first external electronic device.

The application provides a posture control evaluation system for nervous system diseases, and relates to the technical field of posture control evaluation. The method comprises the following steps: a joint angle module, which acquires joint angles through a joint goniometer; a joint range of motion scoring module, which determines a joint range of motion score; a joint coordinate module, which acquires a plurality of joint coordinates; a center of gravity scoring module, which determines a center of gravity score according to the joint coordinates; a plantar pressure data module, which acquires plantar pressure data of a plurality of sampling points at a plurality of motion simulation time points through a pressure insole; a pressure scoring module, which determines a pressure score according to the plantar pressure data; and a posture control scoring module, which performs weighted average on the joint range of motion score, the center of gravity score and the pressure score to determine a posture control score. According to the application, the posture control function under different motion states and different motion mode conversions can be accurately evaluated according to the joint range of motion score, the center of gravity score and the pressure score.

The invention relates to the technical field of rehabilitation training monitoring, and discloses a rehabilitation training monitoring method based on depth vision, and the method comprises the steps: obtaining environment data in a current training process after a training field is laid, carrying out the evaluation of the environment data, and obtaining an environment evaluation coefficient; and constructing a stability deviation coefficient in a user training process based on the user skeleton data, and intercepting and outputting a video corresponding to the corresponding action. According to the method, the overall stability of the body of the user in the training process is quantified, the larger the value is, the more obvious shaking or deviation is, the method is very suitable for evaluating the balance ability or posture control ability, rehabilitation patients often have balance disorder or posture control difficulty, and the coefficient can objectively record the stability change of the body in the training process; quantitative indexes are provided for the rehabilitation progress, the stability change of the body in the training process can be objectively recorded, and the quantitative indexes are provided for the rehabilitation progress.