151 results about "Active motion" patented technology

The invention relates to a motion control method of a lower limb rehabilitative robot. In the method, aiming at different rehabilitation stages of a patient, two working modes of passive training and active training are carried out: under the mode of passive training, the patient is driven by controlling the robot to finish specific motions or motion according to a right physiological gait track; abnormal motions of the patient are completely restrained; and the patient passively follows the robot to do walking rehabilitation training; under the mode of active training, limited abnormal motions of the patient are restrained by the robot; through a real-time detection on joint driving forces generated when the patient acts on the robot in the motion process, human-computer interaction moment is extracted by utilizing an inverse dynamic model to judge the active motion intention of lower limbs of the patient; and the interaction moment is converted into correction value of gait track by utilizing an impedance controller to directly correct or generate the gait training track the patient expects through an adaptive controller, therefore, the purpose that the robot can provide auxiliary force and resistant force for the rehabilitation training can be indirectly realized. By means of the motion control method of the lower limb rehabilitative robot, rehabilitation training motions suitable for different rehabilitation stages can be provided for a dysbasia patient, thereby enhancing active participation degree of the rehabilitation training of the patient, building confidence of the rehabilitation and positivity of the motion, and then enhancing effect of the rehabilitation training.

Enables coupling or retrofitting a golf club with active motion capture electronics that are battery powered, passive or active shot count components, for example a passive RFID, and/or a visual marker on the cap for use with visual motion capture cameras. Does not require modifying the golf club. Electronics package and battery can be easily removed and replaced, for example without any tools. May utilize a weight that is removed when inserting the electronic package in the mount, wherein the weight element may have the same weight as an electronics package, for no net change or minimal change in club weight. May be implemented with a shaft enclosure and expander that may be coupled with a screw aligned along an axis parallel to the axis of the golf club shaft. May utilize non-permanently and/or friction coupling between the mount and golf club shaft. Cap may include a visual marker and/or logo.

The invention discloses an upper limb hemiplegia rehabilitation robot, which belongs to the technical field of medical appliances, and comprises a shoulder joint motion module, an elbow joint motion module, a forearm and wrist joint motion module, a gravity compensating module, a bracket and a data acquisition module, wherein the two ends of the gravity compensating module are connected with the shoulder joint motion module; the shoulder joint motion module, the elbow joint motion module and the forearm and wrist joint motion module are connected in turn; the shoulder joint motion module is fixedly connected with the top of the bracket; and the data acquisition module is fixedly arranged on the elbow joint motion module. The upper limb hemiplegia rehabilitation robot can help a patient do7-degree-ofmotion-freedom active motion training, including bending, stretching, inward/outward turning and outward/inward swinging motions at the shoulders of the upper limbs of the patent, bending/stretching motions at the elbow joints of the patient, inward/outward turning motion of the forearms of the patient, and bending, stretching and outward/inward swinging motion at the wrist joints of the patient. The robot provides a new rehabilitation training means and can improve the efficiency of rehabilitation training.

Handle integrated motion capture element mount that enables coupling or retrofitting a golf club with active motion capture electronics that are battery powered, passive or active shot count components, for example a passive RFID, and/or a visual marker on the cap for use with visual motion capture cameras. Does not require modifying the golf club. Electronics package and battery can be easily removed and replaced, for example without any tools. May utilize a weight that is removed when inserting the electronic package in the mount, wherein the weight element may have the same weight as an electronics package, for no net change or minimal change in club weight. May be implemented with a handle without electronics for future upgrading. May utilize non-permanently and/or friction coupling between the mount and equipment.

The invention provides an electronic image stabilization method based on inertial navigation information. The method comprises the following steps that: firstly, feature points of each image of a video are extracted, subsequently the overall motion estimation is carried out on two adjacent frames by using a feature point matching algorithm; if the overall motion estimation has larger errors, the overall motion is estimated by using motion information obtained by an inertial navigation system so as to compensate the errors caused by the fact that the overall motion is estimated by merely using an image; the overall motion estimation adopts an affine transformation model; then motion filtering is carried out on the model in combination with the image and the inertial navigation information so as to distinguish the active motion and a trembling component of a camera; and moreover, a rotational component introduced because of the trembling is determined; and furthermore an original video image is compensated by using the obtained trembling and rotational components so as to obtain a stable video; and the image restoration treatment is carried out on each frame of image of the video in combination with the image information and the inertial navigation prediction motion information. The method needs no complex hardware and is good in electronic image stabilization; and the calculation precision is improved.

The present invention is a continuous passive and active motion machine for the ankle. The invention includes a base configured to be placed on a flat, stable surface. The base is connected to a foot plate portion, which is connected to a drive shaft mechanism that moves along glide tracks using a motor. The foot plate is caused to move in a direction substantially perpendicular to movement of the drive shaft mechanism. Pressure sensors are added to provide feedback data to a controller. The controller potentially alters the behavior of the machine based on the provided feedback data.

The invention discloses a tail-suspended rat fixing device, which comprises a rat fixing box, a tail suspension device and an angle adjusting device. The invention also provides a tail-suspended rat vibration/motion training device, which comprises a motion track limit device, a vibration training device, an active motion training device, a passive motion training device, a rat hind limb fixing device and a height adjusting device. The invention also provides a vibration/motion control device, which comprises a display screen, a key, a direct-current motor speed adjusting knob, a power supply adapter, a switch, a USB interface and an internal circuit, wherein the direct-current motor speed adjusting knob is used for adjusting the rotating speed of a direct-current motor during passive motion training; the power supply adapter and the switch are used for supplying power for the whole device; the USB interface is used for carrying out function expansion later; and the internal circuit is used for controlling and quantifying rat vibration/motion training and supplying power. The device can keep the same tail-suspended height, can carry out equal-length and equal-tension motion by combining vibration and motion training, and simultaneously achieves training quantification and control.

The present invention relates generally to a surgical device for the correction of deformities of the spinal column and finds particular, although not exclusive, utility in devices which are surgically implantable. Presently known implantable surgical devices are unable to provide for the progressive correction of spinal deformities assisted by active movements of the human body without fusion of the involved part of the spinal column. The present surgical device comprises a spinal column straightening means for permitting the relative rotation of two substantially adjacent vertebrae about a common axis substantially only in opposite rotational directions.

The invention relates to an active intention control-based portable ankle joint rehabilitation robot comprising a leg protection fixing mechanism, a walking-assisting mechanism connected to the leg protection fixing mechanism, a foot plate mechanism arranged on the leg protection fixing mechanism to be connected with the walking-assisting mechanism, and a gait correction mechanism connected to thefoot plate mechanism. A pressure sensor and a microprocessor are integrated on the foot plate mechanism. With a plantar pressure sensing system, a plantar pressure signal of a testee can be processedduring the test and active motion intention of the testee can be captured; the active motion intention is converted into a control instruction and the walking-assisting mechanism can be controlled and ankle dorsal flexure and plantar flexion rehabilitation and normal gait walk can be assisted for the testee; and the gait correction mechanism can be controlled and ankle inward turn and outward turn rehabilitation training can be completed. Reliable foundation is laid for the rehabilitation evaluation system and the training system; and the active intention control-based portable ankle joint rehabilitation robot has high overall control precision and great real-time control capability.

The invention discloses an active exercise control method and device for a rehabilitation robot based on surface electromyogram signals, which are used in various upper limb or lower limb rehabilitation robots with surface electromyogram signal acquisition functions. The active exercise control method comprises the following steps: in the rehabilitation exercise process, firstly, acquiring surface electromyogram signals from two pieces of corresponding muscle, extracting patient active motion mode information such as the frequency and the phase from the surface electromyogram signals in real time by using a frequency tracking algorithm, generating a reference exercise track of the robot according to the phase information, and controlling the output torque of the robot according to practical motion errors, thereby assisting the patient to complete rehabilitation exercise tasks. By adopting the active exercise control method and device, active exercise of multiple joints can be achieved by using the rehabilitation robot on the basis of double-channel surface electromyogram signals, the surface electromyogram signals are convenient to acquire and process, real-time monitoring of active motion intention of a testee and active rehabilitation exercise through the rehabilitation robot can be achieved, and the rehabilitation exercise efficiency can be improved.

The invention provides a tail-suspended rat fixing device which comprises a tail suspension device, a rat fixing box for storing the head and body of a rat, a body fixing device for fixing the body of a rat, an angle control device for controlling the included angle between the rat fixing box and a pedestal of the tail-suspended rat fixing device. The invention also provides a tail-suspended rat active/passive motion training device which comprises a rat hind limb motion device for training active/passive motion of the hind limb of a rat and further comprises a motion orbit control device for limiting the motion range of the hind limb of a rat, an active motion training device for training the active motion of the hind limb of a rat, and a passive motion training device for training the passive motion of the hind limb of a rat. The invention realizes the motion training and simultaneously keeps the tail suspension angle unchanged, that is, keeps the rat in a simulated weightlessness state.

The invention relates to the technical field of mechanical arm elements, and discloses a novel mechanical arm used for an upper limb rehabilitation robot. The novel mechanical arm used for the upper limb rehabilitation robot comprises a first motor, a second motor, a third motor, a first position sensor, a second position sensor, a third position sensor, a first acceleration sensor, a second acceleration sensor, a third acceleration sensor and a controller. According to the novel mechanical arm used for the upper limb rehabilitation robot, multiple sensors are combined in joint components, force measurement is enabled to be easier, the softness, the safety and the flexibility of the robot are ensured, the force of upper limb rehabilitation training sensitivity operation is improved, a design structure of the mechanical arm is constituted by making multiple rotary joint components in series connection, each joint component is provided with a driving mechanism of a motor reducer, the driving mechanisms can drive the arm to actively move, and therefore rehabilitation training is effectively achieved.

The invention provides a tail-suspended rat positioning device, which comprises a tail suspending device, a rat fixing box, a trunk positioning device and an angle control device, wherein the rat fixing box is used for accommodating the head and the trunk part of a rat; the trunk positioning device is used for fixing the trunk of the rat; and the angle control device is used for controlling an angle between the rat fixing box and a base of the tail-suspended rat positioning device. The invention also provides an active/passive exercise training device for the tail-suspended rat, which comprises a rat hind limb exercise device, a track control device, an active exercise training device and a passive exercise training device, wherein the rat hind limb exercise device is used for performing active or passive exercise training on the hind limbs of the rat; the track control device is used for limiting the motion range of the hind limbs of the rat; the active exercise training device is used for performing active exercise training on the hind limbs of the rat; and the passive exercise training device is used for performing passive exercise training on the hind limbs of the rat. The devices can keep the tail suspending angle of the rat unchangeable, namely keep a simulated weightless state during exercise training, and can control the active/passive training for the rat to perform quantitative training.

The invention discloses a contact fatigue life prediction testing machine, comprising a testing machine cabinet, an active motion shaft, a main shaft servo motor, a level retainer, a test-accompanying motion shaft, a testing force loading device and a test-accompanying driving servo motor, wherein the upper side of the testing machine cabinet is provided with a worktable; the active motion shaft is supported on the worktable by a bearing and one end of the active motion shaft is used for setting a main test sample; the output end of the main shaft servo motor is connected with the other end of the active motion shaft; a transmission shaft is arranged on the level retainer and is supported on the worktable by a bearing; the test-accompanying motion shaft is rotatably arranged at one end of the level retainer, and a test-accompanying sample corresponding to the main test sample is arranged on the test-accompanying motion shaft; the testing force loading device is used for pushing the other end of the level retainer to enable the test-accompanying sample to be contacted with the main test sample; the test-accompanying driving servo motor is connected with the transmission shaft by a conveyor belt, and the conveyor belt is connected with the test-accompanying motion shaft by a conveyor belt. In the invention, the slip ratio of the main test sample and the test-accompanying sample can be flexibly adjusted in a wide range, thereby reducing the error of the test result.