318 results about "Hand arm" patented technology

The invention discloses a forearm of a manipulator, which is provided with a wrist joint axis and an elbow joint axis, and comprises a shell comprising a supporting part and a main body part which are integrally formed, and the supporting part is provided with a first pressing end; the wrist belt wheel is coaxial with the axis of the wrist joint, the wrist belt wheel and the shell form a mounting space, the wrist belt wheel comprises a shaft part and a belt wheel part which are integrally formed, and a second pressing end is formed at the joint of the shaft part and the belt wheel part; the bearing is arranged in the mounting space, and the bearing is provided with an inner ring and an outer ring; the pressing assembly is coaxial with the axis of the wrist joint and comprises a first pressing piece and a second pressing piece; wherein the first press-fit part and the first press-fit end form axial constraint on the outer ring of the bearing, and the second press-fit part and the second press-fit end form axial constraint on the inner ring of the bearing, so that the wrist belt wheel can rotate relative to the shell through the bearing. By adopting the scheme, the concentricity of the forearm of the manipulator is improved, and the axial mounting space is reduced.

The utility model discloses a tennis elbow sheath in the technical field of tennis elbow guards, which comprises an arm sleeve, the arm sleeve is a flexible sleeve with two open ends, a hand traction belt extends out of the front end of the arm sleeve, the rear end of an arm resistance belt is connected onto the arm sleeve, and the rear end of the arm resistance belt can be connected onto a hinged shaft in a winding tightening or stretching manner. The pressure belt is bound to the arm sleeve in a tightness adjustable mode, the hand traction belt and the adjusting buckle are additionally arranged, the tension of the arm can be positioned and adjusted by positioning the hand traction belt through the palm, the arm bending and stretching tension of the whole arm sleeve is adjusted accordingly, impedance can be adjusted according to rehabilitation training, and rehabilitation training requirements of different degrees of patients can be met; a pressure belt and a pressing gasket are additionally arranged, an artificial secondary pole stop point is formed below a wrist extensor starting point, the stress of the wrist extensor at the humerus stop point is relieved, the pressing force can be adjusted, and therefore the purposes of relieving pain of a patient and strengthening the extensor strength are achieved.

A multi-degree-of-freedom bionic arm of a humanoid robot belongs to the technical field of robots, and seven degrees of freedom of the robot arm are formed by a shoulder swing arm rotating mechanism, a shoulder left-right swing arm rotating mechanism, a big arm axial rotating mechanism, an elbow rotating mechanism, a small arm axial rotating mechanism, a wrist rotating mechanism and a wrist inner drive rotating mechanism. Holes and grooves are formed in the elbow part for laying cables, the cables are not exposed, and the shell size of the elbow joint is reduced. And the cable does not run about when the elbow moves in a large range, so that interference with other parts is avoided. A connecting rod mechanism composed of a first output disc, two connecting rods and a second output disc is arranged on the side face, the load inertia of a forearm joint, a whole arm force arm and the tail end is reduced, and the arm load capacity and motion performance are improved; the wrist drives the front-back and left-right freedom degree axes of the hand to coincide at one point, and the flexibility of the wrist is improved. Due to seven degrees of freedom, the robot is more bionic, the degrees of freedom are also on the same straight line after the arms of a person are straightened laterally, and the movement offset is small.

The present invention discloses a robotic arm of an industrial robot, belonging to the field of mechanical transmission. The arm includes: a four-axis housing, a wrist housing, and a forearm housing composed of a rear-end forearm housing, an intermediate forearm housing, and a front-end forearm housing. A four-axis reduction mechanism is arranged inside the four-axis housing, a five-axis reduction mechanism, a six-axis first-stage reduction mechanism, and a six-axis second-stage reduction mechanism are arranged inside the forearm housing, and a six-axis third-stage reduction mechanism is arranged inside the wrist housing; the four-axis, five-axis, and six-axis reduction mechanisms all adopt a combined transmission mode of hypoid gears and involute gears, having the advantages of stable operation and strong impact resistance. While ensuring a reasonable layout, the entire arm system takes into account the overall lightweight design. In addition, the connection methods of the external interfaces with each joint and the motor interfaces adopt a flexible design, and the interfaces can be flexibly converted, with stronger applicability.

A prosthetic assistive device configured to attach to a distal end of a natural or prosthetic arm or wrist. The device may include a palm portion. A split hook may be coupled to a distal end of the palm portion. The split hook may comprise a first end effector and a second end effector. The prosthetic device may include a third end effector rotatably coupled to the palm portion at a proximal end of the palm portion. The third end effector may rotate about a transverse axis to pinch and unpinch, as well as rotate about a longitudinal axis to adduct and abduct. A rotating member such as a ring may rotate about a plate for adduction / abduction. The prosthetic device may include a drive assembly configured to rotate one or both of the split hook end effectors about two different axes.

The invention provides a multi-source heterogeneous data synchronous mechanical arm bionic control method and device and electronic equipment, and relates to the technical field of robot control, and the method comprises the following steps: decoding hand joint angle data and a synchronization timestamp thereof, wrist pose data and a synchronization timestamp thereof, and arm pose data and a synchronization timestamp thereof, and obtaining a decoding result; the decoded hand joint angle data, the decoded wrist pose data and the decoded arm pose data are transmitted to a mechanical arm controller through a low-delay network; and the mechanical arm controller executes dynamic remapping based on the decoded hand joint angle data, the decoded wrist pose data and the decoded arm pose data, and simulation control of the mechanical arm is achieved. According to the method, the arm pose data participates in dynamic correction of the base coordinate system, space positioning deviation is eliminated, and the mechanical arm reproduces actions; timing sequence block optimization considers fine grabbing and long track actions, and action restoration authenticity is improved.

The invention relates to the technical field of robot grabbing control, and discloses an anti-loosening grabbing control method and system for a mechanical arm of a robot, and differential adjustment is performed on the output force of each clamping finger of a clamping jaw through an independent clamping finger driving mechanism. The differential adjustment is one of the core innovation points of the application, and breaks through the limitation of traditional fixed clamping force or overall clamping force adjustment. For example, when it is detected that a certain part of the workpiece tends to slide, the system can specifically increase the output force of the clamping fingers corresponding to the part and correspondingly adjust the output force of the clamping fingers of other parts so as to restrain sliding, and meanwhile the situation that the overall clamping force is too large is avoided. The refined force control can effectively restrain various linear and rotating direction separation trends generated in the high-speed movement and posture change process of the workpiece, and the grabbing stability is remarkably improved.

The present disclosure relates to the field of artificial limbs for amputees and specifically to a passive compliant wrist unit 210 for upper limb prosthesis. The passive compliant can comprise a plurality of fingers controlled by a compliant four bar mechanism. The arm is capable of extension / flexion, radial / ulnar deviation on application of a force on the snap joint. The limb is also capable of pronation / supination actions. By application of a force on an arm snap joint, the flexible wrist 216 can be adapted to perform extension / flexion, radial / ulnar deviation.

The invention provides a rigid-flexible coupling wrist rehabilitation robot which comprises an arm supporting unit and a wrist supporting unit, the arm supporting unit is matched with the forearm of a patient, the wrist supporting unit is matched with the palm of the patient, and an upper / lower elastic rope support and a left / right elastic rope support are installed on a connecting plate of the forearm supporting unit. An elastic rope connecting anchor point at the front end of the upper elastic rope support and an elastic rope connecting anchor point at the front end of the lower elastic rope support are connected with corresponding anchor points of the wrist supporting unit through three elastic ropes to form an integral tensioning structure, and four driving flexible ropes penetrate through Bowden wire pipes installed in the elastic rope supports to be connected to the corresponding anchor points of the wrist supporting unit. And the flexion / extension and radial deflection / ulnar deflection of the wrist joint are realized by traction and driving of the flexible cable. The open type wearable structure is convenient for a patient to wear, and the problems that a rigid wrist rehabilitation robot is not matched with the instant movement center when the wrist of the patient moves and the joint torque of a flexible wrist rehabilitation robot is insufficient are solved, so that the treatment effect of rehabilitation training on the patient is improved.

A protective pad assembly for removably positioning on an arm or a leg of a user of the protective pad assembly for protecting an elbow or a knee of the user. The protective pad assembly comprises an outer protective unit including a protective cushion pad configured to protect the elbow or the knee of the user from impact, and a self-retaining device mounted to the outer protective unit for retaining the outer protective unit on the arm or leg of the user. The self-retaining device includes a resilient retaining split-ring clamp having two opposite free ends spaced from one another. The free ends of the resilient retaining split-ring clamp are circumferentially expandable or contractable relative to one another for retaining the protective pad on an arm or a leg of the user of the protective pad assembly over one of the elbow and the knee thereof.

The utility model discloses a hybrid-driven five-finger dexterous hand which comprises a palm module, a wrist module and an arm module which are sequentially connected. A finger driving module is arranged on the arm module, and a wrist driving module is arranged below the wrist module; the finger driving module consists of a plurality of groups of tendon rope driving modules; the wrist driving module is driven by a linear module. The tendon rope driving module is adopted to accurately control and adjust multiple degrees of freedom of different joints of multiple fingers on the palm, and the wrist module achieves pitching, swinging and other actions on the wrist through the linear module. Different driving modes are combined, reasonable layout of different driving mechanisms can be achieved in a limited space, and due to the fact that the accuracy requirements of finger and wrist control are different, the mixed driving mode is higher in pertinence.

The arm brace supports an injured arm during rehabilitation. The arm brace has a wrap member, an arm support member, and an arm sleeve member. The wrap member is secured around a hip and a thigh of a user. The arm support member is secured to a side of the wrap member with couplings including V straps. This configuration provides a platform structure that supports the arm sleeve that partially surrounds and protects the forearm. The arm brace does not require a shoulder strap, a neck strap for support and any other upper body supports. The brace provides a stable support structure that immobilizes the arm regardless of the position of the patient. The hand extends out from a front end of the brace so the user can perform activities such as eating, typing, and grasping.

A hand-manipulated puppet of the type simulating an animal (E.g. a cat) having a head, a body portion with four limbs / arms, and a sleeve is presented. The sleeve is attached to the animal's body portion. The puppet includes a wearable band and / or attire covering a portion of animal's body portion. The puppet include selectively includes pocket(s) on the limbs / arms, and / or the sleeve, and / or the wearable band for receiving stimulants. The pocket(s) are adapted for receiving pouches filled with stimulants. An operator's forearm or a portion of the forearm is laid into the sleeve whereas the palm portion, specifically the five fingers of the operator can get into the animal's body portion and used for selectively manipulate the animal's mouth, and four arms.

The utility model relates to an arm strength exerciser which comprises a spring tube and two grab handles. The bourdon tube is a cylindrical spiral bourdon tube with a certain length and comprises a middle main body part with a larger diameter and two end parts which are positioned at two ends of the middle main body part and have smaller diameters; and the two grab handles are respectively and fixedly sleeved on the two end parts. The main body is the cylindrical spiral bourdon tube, the grab handles are arranged at the two ends of the cylindrical spiral bourdon tube respectively, the two hands grasp the grab handles to elastically bend the bourdon tube during exercise, so that the muscle strength of the arms is exercised, and the bourdon tube has the advantages of being simple in structure and convenient to use.

According to the various features, characteristics and embodiments of the present invention which will become apparent as the description thereof proceeds, the present invention provides reusable grip enhancing tubular members for the arm area, in particular sports sleeves for the arm and forearm, and reusable grip enhancing tubular members for the hand, in particular sports finger cots for the hand, and the uses thereof, and methods thereof, intended to increase the performance in arm and / or hand task activities.

The utility model discloses a handheld electric welding machine with a protection mechanism, which comprises an anti-scald module. The anti-scalding module comprises an electric welding machine gun, a glove connected with the electric welding machine gun, an arm sleeve connected and communicated with the glove, a hook-and-loop fastener loop face installed on the outer side of the arm sleeve, a bandage fixedly connected to one side of the arm sleeve and a hook-and-loop fastener hook face connected with the top of the bandage, and the hook-and-loop fastener hook face is movably bonded with the hook-and-loop fastener loop face. According to the utility model, a user inserts the hand and the arm into the glove and the arm sleeve, then the binding band is tightened to tighten the outer end of the arm sleeve, then the hook surface of the magic tape is matched with the loop surface of the magic tape to realize the connection of the arm sleeve and the forearm, and then the palm tightly holds a machine gun of an electric welding machine through the glove, so that the welding operation can be carried out, and the hand and the arm of the user are effectively protected.

The utility model relates to a radial artery puncture assist device, which comprises a front arm, a rear arm, a rear arm, an upper arm and a lower arm, the rear arm is detachably connected with the front arm, the interior of the rear arm is semi-arc-shaped, and second supporting wings are arranged on the two sides of the rear arm; the adjusting assembly is arranged at the rear end of the front arm and is clamped with the rear arm to adjust the inclined included angle between the front arm and the rear arm; the binding assembly is arranged at the bottom of the front arm and the bottom of the rear arm and used for binding the arms of a puncture person. The utility model has the beneficial effects that the front arm and the rear arm are detachably connected, so that the front arm and the rear arm can be conveniently assembled in different included angle states so as to be suitable for different persons to use, the front arm and the rear arm can be clamped and fixed through the positioning bolt after adjustment is completed, and relative rotation of the front arm and the rear arm can be effectively limited due to the clamping teeth and the clamping groove after fixation, so that the working efficiency is improved. After being drawn out, the binding belt can be stuck and buckled through the hook-and-loop fastener loop face and the hook-and-loop fastener thorn face of the binding belt, so that the binding effect is achieved, and the arm and the palm are fixed to the front arm and the rear arm respectively.

The invention discloses an SMA-based upper limb exoskeleton rehabilitation robot which comprises a big arm exoskeleton auxiliary block detachably mounted on a big arm, a front arm exoskeleton block detachably mounted on a front arm and a wrist joint exoskeleton frame detachably mounted on a wrist joint, and the front arm exoskeleton block can be rotationally mounted on the big arm exoskeleton auxiliary block in a driven manner; an upper SMA tractor used for driving the forearm exoskeleton block to rotate is arranged on the big arm exoskeleton auxiliary block, and a lower SMA tractor used for enabling the wrist to move up and down is arranged on the forearm exoskeleton block. When the upper SMA tractor is heated to a certain temperature, the upper SMA tractor begins to contract, the forearm exoskeleton block is dragged in the contraction process, the forearm exoskeleton block rotates on the big arm exoskeleton auxiliary block, the forearm of the human body is driven to swing, meanwhile, the lower SMA tractor is heated, and when the lower SMA tractor is heated to a certain temperature, the lower SMA tractor begins to contract, and the forearm exoskeleton block rotates on the big arm exoskeleton auxiliary block and drives the forearm of the human body to swing. In the contraction process, the hand is dragged, the hand moves up and down, and the auxiliary effect on arm and hand rehabilitation is achieved.

The present invention is directed toward an exercise machine and climbing simulator that enables its users to initiate the climbing or crawling motion whilst being rotated at different angles. This invention includes a rotatable framework and a plurality of foot spines and arm spines that are configured to support the feet and arms of a user. As the framework rotates, the user incurs exercise in maintaining contact with the plurality of foot and hand spines. Each of the foot and hand spines is decoupled from each other, that is, each of the foot and hand spines is configured with independent rotational and lateral movement. By changing the angles of rotation and the positions of the foot and hand spines, gravity is applied in different ways and therefore different muscle groups are targeted. Thus, this invention assists users in acquiring varying degrees of physical fitness and mountain climbing preparation.

[Problem] During a lowering exercise according to the prior art, changes in upper-limb (forearm, elbow joint, and shoulder joint) movement are such that, since the rotation axis of a grip part is fixed in the vertical direction, the hand rotates around the vertical axis together with the grip part as the lowering exercise is executed, and the shoulder joint continues to internally rotate. As a result, the forearm keeps inclining forward, thereby restricting subsequent extension acceleration slightly rearward of the body. [Solution] Provided is a training machine with which training is performed by moving an arm unit against the weight of a back weight, the arm unit being connected to at least one back weight via a cable and vertically movable along a guide column. A grip part of the arm unit is configured to rotate around an axis substantially orthogonal to the guide column axis. A training machine can thus be provided which can accommodate changes in the inclination angle of the hand and does not restrict extension movement when the upper limb is extended while being lowered.

The present invention is a biarticular forearm support brace comprising a hand wrap, an arm wrap, vibrational motors, and EMG sensors. In the preferred embodiment of the present invention, the present invention further comprises medical-grade materials with elastic properties and a plurality of straps. The present invention takes the tension off the extensor muscles in the forearm by pulling the hand towards the elbow, replacing muscle function and allowing the extensor muscles in the forearm to be shortened while not being contracted.

The invention relates to a variable impedance control method for a wrist joint rehabilitation training robot, and the method comprises the steps: constructing a self-adaptive reference stiffness correction model, inputting the rehabilitation score of a patient and the real-time muscular tension of each motion dimension of a wrist joint, and outputting the self-adaptive reference stiffness of each motion dimension; constructing a composite cost function which comprises a contact force safety threshold penalty term model and an impedance parameter change rate penalty term model; and constructing an uncertainty weighted correction model, inputting the composite cost value, the state prediction result and the patient rehabilitation score, and outputting the weighted instantaneous cost. Through the composite cost function and the dynamic impedance adjustment strategy, the impedance adjustment characteristic of the human arm is simulated, high-rigidity rapid approaching in the non-contact stage, low-rigidity high-damping buffering in the contact stage and low-rigidity low-damping compliant control in the stable stage are achieved, and the training comfort and safety are improved. According to limb impedance characteristics, rehabilitation stages and training tasks of patients, personalized requirements and dynamic rehabilitation scenes of different patients can be adapted.

A device for supporting at least one arm of a user, wherein: the device has at least one arm-supporting element comprising an arm shell for placing on the arm, at least one passive actuator which is configured to apply a force to the at least one arm-supporting element, and at least one counter bearing for the force to be applied, with at least one force transmission element and a counter bearing element; the arm-supporting element is connected to the force transmission element via an articulation so as to be pivotable about at least one pivot axis; the device additionally has at least one restraining element which limits a movement of the arm shell along the arm towards the hand when the device is worn, but does not affect a movement of the arm shell in the opposite direction; and the at least one restraining element is designed to be flexible but inelastic, and / or has at least one portion which extends in an axillary manner.

1. Name of the design product: wrist of master hand of surgical robot. 2. Use of the design product: used for remote control operation of surgical instruments in cooperation with master hand arm. 3. Design points of the design product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

1. Name of the product in this design: Integrated Hand Support (STM). 2. Purpose of this product design: To be placed under the wrist and forearm to protect the wrist and forearm and improve comfort. 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.

A device for relieving the right shoulder muscles of a right-handed player when playing a stringed instrument, while simultaneously utilizing the resulting free fall force of the right arm to stabilize the instrument. The device consists of a body support that connects the upper bout of the instrument to the player's torso and an armrest that attaches to the rib of the upward-facing lower bout of the instrument, allowing the right upper arm to rest comfortably. When playing a stringed instrument, the right arm must be constantly held in a forward-raised and laterally abducted position due to the instrument's size, using muscle strength to prevent its weight from altering the instrument's playing position. The armrest allows the upper arm to rest comfortably, thus completely relieving the right shoulder muscles. The body support prevents the upper bow of the instrument from being levered forward and upward when the right arm, with its falling force, acts backward and downward on the lower bow. The device causes the force of fall released by the relaxation of the right shoulder muscles to clamp and fix the instrument between the arm, the leg on which it stands, the body support and the contact point between the base of the instrument and the upper body of the player.

The application discloses a three-dimensional target selection method based on finger motion as a ray mapping basis, and belongs to the technical field of human-computer interaction. The method comprises the following steps: (1) capturing hand state information, switching the mapping subject of ray tracking according to the stretching and bending degree of fingers and the motion speed of fingers, and determining the mapping subject; the mapping subject comprises the whole hand and each finger; (2) determining the information type number of mapping, the mapping scale, the projection mode of mapping according to the current mapping subject, and selecting the target in the three-dimensional space by using the mapped ray. The application switches the current mapping subject, improves the selection efficiency of the target in the three-dimensional scene, and reduces the fatigue of hands and arms; different mapping information type numbers, projection modes and projection scales are flexibly used, so that the limitations of different finger types are compensated, and the mapped ray can have a larger selection range in the virtual three-dimensional scene.

This application discloses a three-dimensional posture corrector with wrist support function, belonging to the field of posture correction technology. In the embodiments of this application, by setting a transition surface or support part, it can be used to rest the wrist and / or elbow, providing sufficient support for the user's arm to improve the situation where the wrist and / or elbow are suspended or pressed against the side of the writing board, guiding the user's wrist to exert force correctly, thereby improving the comfort of using the writing board and improving the user's posture correction effect.

An orthosis having a strap arrangement which is designed to engage on an arm section at the elbow or adjacent to the elbow of the arm extending from the first shoulder joint, which is to be immobilized, in order to fix the elbow frontally on the body of the patient. The strap arrangement has a first strap section which is provided for at least partially looping around the arm section. The strap arrangement has a second strap section which is provided for at least partially looping around the arm section, and is incorporated into the strap arrangement such that, in the fitted state of the orthosis, the second strap section exerts on the arm section a second force which has at least a second component running parallel to the sagittal plane of the patient and horizontally.