17 results about "Passive motion" patented technology

Embodiments of the present application provide a bending machine and a control method, device, medium and equipment thereof. The bending machine comprises a first motor, a second motor, a vertical shaft, an up-down moving shaft, a swing shaft, a bending piece and a sliding block. The vertical shaft is a shaft structure vertically installed and fixed in position. The up-down moving shaft is axially connected with the vertical shaft and is used to move up and down along the vertical shaft under the control of the first motor. The swing shaft is movably connected with the up-down moving shaft. The sliding block is used to slide up and down under the drive of the second motor and keeps contact with the back inclined surface of the bending piece during the sliding process. The bending piece is movably connected with the swing shaft and has a cutting edge. The bending piece is used to passively move under the action of the sliding block and the swing shaft so that the cutting edge bends the fixed plate. The flexibility of the embodiments of the present application is relatively high and the production efficiency is not affected.

The invention provides a lower limb rehabilitation evaluation method, system and device based on a brain-computer interface and a medium, and relates to the technical field of rehabilitation medicine and medical electronics. According to a lower limb rehabilitation evaluation technology based on a brain-computer interface, a two-way evaluation system of peripheral muscle form-central nervous activity is constructed through synchronous acquisition of wearable A-type ultrasound and electroencephalogram signals; a-type ultrasound monitors the change of the thickness of the rectus femoris in real time, and electroencephalogram signals analyze the coherence of Alpha / Beta frequency bands, so that functional difference evaluation of a stroke patient in a resting state, a passive motion state and an active motion state with different resistances is realized, the limitation of single subjective scoring of a traditional scale is avoided, and a multi-dimensional quantitative index is provided for rehabilitation evaluation.

A rope-driven test system for variable stiffness manipulator and variable stiffness gripper includes a two-degree-of-freedom passive motion part, a three-degree-of-freedom active motion part, a pure rigid manipulator, a flexible joint, a variable stiffness manipulator and a variable stiffness gripper, and a frame. The two-degree-of-freedom passive motion part allows manual adjustment of the posture, and the three-degree-of-freedom active motion part realizes accurate operation through motor driving. The pure rigid manipulator provides high stiffness operation, and the flexible joint and the variable stiffness manipulator allow dynamic adjustment of the stiffness to adapt to different tasks. The variable stiffness gripper serves as an end effector and directly contacts objects. The entire system is installed on the frame, realizing structural stability and modular design, and can comprehensively evaluate the performance of the manipulator and the gripper. The invention provides a rope-driven test system that is comprehensive in function, flexible in operation and convenient to maintain, and can effectively test and verify the performance of the variable stiffness manipulator and the gripper, providing important technical support for practical applications.

A micro constant passive motion machine for applying short arc constant passive motion to a knee joint of a user includes a base member and a sliding member secured to the base member so as to permit sliding, translational movement of the sliding member relative to the base member. The machine further includes a leg receiving member secured to the sliding member, and one or more motors. The machine further includes a primary rotative component whose rotation is configured to effect, via a connection strut secured to the primary rotative component and the base member, short arc sliding, translational movement of the sliding member relative to the base member. The machine still further includes a second rotative component whose rotation is configured to effect, via a pivot member, continually alternating rotation of the leg receiving member.

A passive motion isolation system for motion-sensitive equipment is disclosed. The passive motion isolation system has a three-axis free motion platform mounted on a base subject to ambient motions. A vibration isolation subsystem is coupled between the motion-sensitive equipment and the three-axis free motion platform.

A micro constant passive motion machine for applying short arc constant passive motion to a knee joint of a user includes a base member and a sliding member secured to the base member so as to permit sliding, translational movement of the sliding member relative to the base member. The machine further includes a leg receiving member secured to the sliding member, and one or more motors. The machine further includes a primary rotative component whose rotation is configured to effect, via a connection strut secured to the primary rotative component and the base member, short arc sliding, translational movement of the sliding member relative to the base member. The machine still further includes a second rotative component whose rotation is configured to effect, via a pivot member, continually alternating rotation of the leg receiving member.

This utility model belongs to the field of motion platform technology, specifically an anti-hinged mechanism for a motion platform. It includes a support frame, with a cable hinge body on the left side of the support frame. The cable hinge body is composed of multiple cable placement mechanisms hinged together by hinge shafts. Each cable placement mechanism includes a base plate, a left support plate integrally mounted on the left side of the base plate, and a right support plate integrally mounted on the right side of the base plate. A cover plate is rotatably mounted on the left support plate. The cable hinge body is formed by the interconnection of several cable placement mechanisms. The cable placement mechanism includes a base plate, a left support plate, a right support plate, and a cover plate. These four components form a cable placement cavity, where the cable is placed. The cover plate is rotatably connected to the left support plate, facilitating the placement of the cable into the cable placement cavity. This design effectively prevents damage to the cable during passive movement.

The utility model discloses an assembly type telescopic device which comprises a connecting workpiece used for fixing a supporting oil cylinder and connecting a passive moving body, the connecting workpiece comprises an assembly frame and a connecting part fixedly connected to one side of the assembly frame, and the supporting oil cylinder used for providing stretching is arranged in the assembly frame in a penetrating mode. According to the assembling mechanism, the pin holes in the mounting plate and the assembling plate are aligned, then the pins sequentially penetrate through the pin holes in the mounting plate and the assembling plate to be fixed, assembling and mounting of the supporting oil cylinder and the assembling frame can be completed, the assembling mechanism is simple in structure, rapid and convenient to operate and high in assembling stability, a carriage can be kept stable in the supporting process, and the assembling efficiency is improved. The telescopic ends of the transverse telescopic mechanisms are connected, before telescopic supporting is conducted, the transverse horizontal pushing power device is started firstly to enable the telescopic cylinders to stretch out outwards, and in the telescopic process of the output ends of the telescopic cylinders of the supporting oil cylinders, the protection frame can be carried to ascend and descend together, so that the protection frame keeps the protection state of the output ends of the telescopic cylinders of the supporting oil cylinders.

The invention provides a man-machine compatible elbow joint rehabilitation robot, and relates to the technical field of medical instruments. The human-machine compatible elbow joint rehabilitation robot comprises an elbow joint flexion / extension active movement unit, an elbow joint inward rotation / outward rotation active movement unit, an elbow joint passive movement unit and a hand passive movement unit. Some passive motion pairs are additionally arranged at the man-machine connecting position, and the man-machine compatibility requirement can be met without strict alignment of machine joints and human body joints through motion of the passive free pairs. The series elastic driver is added between the driving motor and the load, the elastic characteristic of the tendon is simulated through the series elastic driver to improve the energy efficiency, in addition, part of energy is stored and then released slowly when the motor is started and stopped and is accidentally impacted, the time of the whole process that force generated by the motor acts on a patient is prolonged, and the energy efficiency is improved. The effect of reducing impact on the body of the patient is achieved, secondary injury to the patient when the machine is started and stopped is effectively avoided, and discomfort of the patient is reduced.

The invention discloses a Roo effect sports bed, belongs to a technology for combining passive sports equipment and a furniture bed, and is used for manufacturing a furniture bed with a passive sports function. In the figure, the large ring 2 is a push-pull device used for driving the Roo effect bed surface 1, and the push-pull device 2 is composed of a motor 5, an amplitude modulation and frequency modulation device 6, a buffer 7 and the like. An existing earth person only has two kinds of motion, and the passive motion is invented, so that the earth person has three kinds of motion.

The embodiment of the invention relates to the technical field of robots, and provides a master-slave operation precision measurement method and device, measurement equipment and a storage medium, and the method comprises the steps: obtaining a master hand track feature point, and planning a master hand track based on the master hand track feature point; calculating a motion track of a cooperative arm based on the planned master manipulator track; the cooperative arm is controlled to move autonomously according to the movement track, and passive movement data of the master hand and passive movement data of the slave hand are obtained through sensing equipment; and obtaining a precision measurement result of the master-slave operation according to the passive motion data of the slave hand and the passive motion data of the master hand. According to the scheme, manual operation of a master hand and manual data acquisition and calculation precision are not needed, and the accuracy and efficiency of measurement are improved on the whole.

The invention relates to the technical field of wearable exercise assistance and rehabilitation assistive devices, in particular to a passive exercise assistance system and a method for providing passive assistance for the human body of the passive exercise assistance system, and the system mainly comprises a flexible assistance protection tool worn on the body of a user next to the skin and provided with a plurality of anchor point interfaces; the adjustable anchor point is arranged at the anchor point connector so as to adjust the mounting position and angle of the elastic band assembly mounted at the anchor point connector according to the body type and action requirements of different users; the elastic belt assembly is connected with the anchor point connector, when the elastic belt assembly is bridged between the two parts of the human body, the elastic belt assembly is stretched to store mechanical energy in the first stage of movement of the human body, and rebounds to release the mechanical energy in the opposite movement stage so as to apply assisting force to the human body along a preset force line; a bridging path and tension setting may be determined based on a preset motion digital twinning and depth motion data analysis system. Therefore, the problems that an existing passive power assisting device is insufficient in comfort, poor in universality, lack of individualized power assisting and the like are solved.

1. Name of the product in this design: Rhythm Motion Machine (Double Rhythm). 2. Purpose of this design: A rhythmic motion machine is a machine that performs regular passive motion at a fixed frequency. 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.

The application belongs to the field of mechanical legs, and particularly relates to a main-passive switching structure, a switching method, a knee joint system and a mechanical leg. The main-passive switching structure comprises a driving wheel, a transmission wheel II, a driven wheel, a support and a clutch mechanism. The driving wheel and the driven wheel are rotationally arranged on the support, the driving wheel is connected with a rotary driving mechanism, and the driven wheel is used for being connected with a driving part of a knee joint structure. The clutch mechanism comprises an operation part and a locking part. The operation part comprises a rotating piece rotationally arranged on an axis of the driving wheel, and a clutch rod fixedly arranged on the rotating piece. The transmission wheel II is rotationally arranged on the clutch rod. The transmission wheel II is rotationally matched with the driven wheel or separated from the driven wheel by rotating the clutch rod. The main-passive switching structure is used for realizing quick switching of active and passive movements of the knee joint structure. After the rotary driving mechanism of the mechanical leg loses power, the knee joint structure can be switched to a passive movement state, so that the knee joint structure can still be used as a passive mechanical leg.

The invention discloses an endoscopic surgery system, which relates to the field of surgical equipment and comprises a multi-axis surgical robot and a surgical instrument, the multi-axis surgical robot comprises a base and a joint assembly, the base is installed in the area where the operating table is located, the head end of the joint assembly is connected with the base, and the tail end is connected with a surgical instrument; the surgical instrument comprises a main shell, a first fingerstall, a second fingerstall, a transmission wheel mechanism and a clamping jaw. The first fingerstall and the second fingerstall are rotationally connected to one end of the main shell and are in transmission connection with the input end of the transmission wheel mechanism through a traction assembly. The clamping jaw is connected to the other end of the main shell in an opening and closing mode and is in transmission connection with the output end of the transmission wheel mechanism. The joint assembly is driven by the main shell to passively move; when the first fingerstall and the second fingerstall get away from each other or get close to each other, the traction assembly drives the transmission wheel mechanism to rotate according to different rotation modes, so that the clamping jaw is opened or closed. According to the scheme, the problem that an existing operation system is difficult to achieve rapid and intuitive instrument adjustment and accurate clamping can be solved.

A system includes a platform supporting a vehicle on a first side of the platform and a passive motion device arranged on a second side of the platform opposite the first side to move upon actuation. A mechanical actuator actuates the passive motion device based on motion of one or more wheels of the vehicle to change a position of the vehicle. The position of the vehicle relative to the platform is unchanged and the passive motion device is actuated solely by motion of the one or more wheels of the vehicle to change the position of the vehicle.

The invention belongs to the technical field of interactive rehabilitation robots, and discloses a three-channel electroencephalogram signal driving-based hand rehabilitation system, which comprises an upper computer, a lower computer, an execution mechanism and an electroencephalogram signal sensor, wiFi communication is adopted between the lower computer and the upper computer; the invention further discloses a hand rehabilitation method based on three-channel electroencephalogram signal driving, and the method comprises the following steps: S1, a subject wears the device according to requirements, sets the upper computer as a training mode, opens normal form presentation, and collects 50 groups of resting state training data and 50 groups of task state training data; s2, training a classification model by using the collected training data, and deploying the model on an upper computer; s3, the upper computer is set to be in an online mode, electroencephalogram signals are collected and recognized according to a time window, and a classification result is output to serve as a lower computer control instruction; s4, the upper computer is set to be in a training mode, and 50 groups of training data of gripping actions and passive exercises of the opposite side hands of the subject are collected respectively; s5, training a classification model by using the collected opposite side hand grasping action motion execution and passive motion training data, and deploying the model on an upper computer; s6, the distribution condition of passive movement and movement execution classification results in the movement period is checked, and rehabilitation effect evaluation indexes are output; according to the interactive brain-computer interface rehabilitation robot system based on portability, easy deployment, recognition effectiveness and interactivity, the practical application significance of a hand rehabilitation system driven by electroencephalogram signals is improved.