615 results about "Forearm" patented technology

The disclosure presents a humanoid robot with an upper region (head, torso, arms with forearm assemblies, end effectors), lower region (legs), and connecting central region. Each end effector features index, middle, ring, little finger, and thumb assemblies attached to a housing of said end effector. The housing includes interior wall extents creating spaces for tendon routing, where the first distance between first and second wall extents is less than 45% of the second distance between third and fourth wall extents. Tendons controlling finger movements pass between these wall extents. The robot incorporates a wrist assembly connecting the housing of the end effector to the forearm, actuators housed in the forearm that control the tendons, and a carpal tunnel-like structure that guides tendons from forearm to base of the housing, enabling precise hand movements without requiring actuators in the hand itself.

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.

An exoskeleton system comprising a leg actuator unit that is configured to be coupled to a leg of a user. The leg actuator unit includes: an upper arm and a lower arm that are rotatably coupled via a rotatable joint, the rotatable joint configured to be positioned at a knee of the user with the upper arm coupled about an upper-leg portion of the user above the knee and with the lower arm coupled about a lower-leg portion of the user below the knee. The upper arm is configured to be coupled to the upper-leg portion above the knee via a first set of couplers that includes a first upper-leg coupler, the lower arm is configured to be coupled to the lower-leg portion below the knee via a second set of couplers that includes one or more lower-leg couplers associated with a lower-leg brace, and an actuator extends between the upper arm and lower arm, the actuator configurable to move the upper arm and lower arm.

The invention discloses a multi-signal fusion upper limb muscular tension increase detection method and device, and relates to the technical field of muscular tension increase detection. The method comprises a data acquisition process, a parameter fitting process, a model training process and a muscular tension increase detection process, passive elbow flexion and elbow extension are carried out at a set speed by driving a forearm with an elbow joint as an axis, mechanical data, kinematics data and myoelectricity data in the movement process are collected, and after the collected various data are preprocessed, the obtained data are subjected to model training and muscular tension increase detection. And training the muscular tension grade prediction model by taking a clinical evaluation result of a doctor on the muscular tension grade as a label, and predicting the muscular tension grade and the contribution degree of each feature to the prediction result through the trained muscular tension grade prediction model. According to the multi-signal fusion upper limb muscular tension increase detection method and device provided by the invention, accurate quantification of muscular tension levels is realized, and meanwhile, the reliability and interpretability of a detection result are enhanced.

The utility model relates to the technical field of drilling rod grabbing mechanical arms, in particular to a mining drilling machine grabbing mechanical arm used for grabbing a drilling rod. Comprising a large arm, a small arm arranged in the large arm in a sleeved mode and a grabbing mechanism arranged at the tail end of the small arm, and a telescopic mechanism is further arranged between the large arm and the small arm. The grabbing mechanism comprises a mechanical claw arranged at the tail end of the small arm and a clamping assembly arranged between the mechanical claw and the small arm, the mechanical claw comprises a first clamping claw body and a second clamping claw body, the first clamping claw body is fixedly connected with the small arm, the second clamping claw body is rotationally connected with the small arm, and the clamping assembly is connected with the second clamping claw body. The telescopic oil cylinder drives the small arm to do lifting motion, drill rods at different height positions can be grabbed, the mechanical claw is driven by the clamping oil cylinder to do the action of grabbing the drill rods, when the mechanical claw gets close to the drill rods, the guide rod moves upwards under the action of pressure, and when the proximity switch detects the guide rod, the clamping oil cylinder acts at the moment to grab the drill rods accurately. Therefore, the device is suitable for positioning and grabbing various drill rods.

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.

The invention discloses an excavator operation pose monitoring method, system and equipment and a medium, and relates to the field of excavators. The method comprises the following steps: processing a video by using a rotating target detection model to obtain four-dimensional coordinates and a rotating angle of a forearm; the first distance between the tail end of the forearm and the cab is obtained according to the four-dimensional coordinates and the rotation angle, the first height of the tail end of the forearm is calculated according to the width and the vertical coordinates of the tail end of the forearm in the image frame of the video in combination with the height from the camera to the ground and the first distance, and the second distance and the second height are obtained through correction of the gradienter; working point coordinates of the tail end of the forearm are obtained according to cab positioning information, azimuth angle information, the second height and the second distance; when the working state of the excavator bucket is changed, working information is recorded, and whether the state of the excavator is normal or not is detected according to the working information. By implementing the technical scheme provided by the invention, the precision and reliability of monitoring the operation pose of the excavator are improved.

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 bone fixator as disclosed herein includes at least one removable portion, and is particularly suitable for external fixation of the bones of the femur and tibia (knee joint), the tibia to the foot (ankle joint), the lower leg, the lower thigh, or the forearm and hand. Embodiments allow multiaxial, multiplanar movement, as well as procurvatum and recurvatum, on the anatomy to achieve optimal placement. Embodiments of the fixator includes four fixator joints, each of which is articulating with multiple degrees of freedom. Some fixator joint(s) include a linkage bar connectable to a multi-pin clamp having a quick connect mechanism. The multi-pin clamp is configured for fixation to a bone. Other fixator joint(s) may be connected to the multi-pin clamp in a semi-permanent or non-detachable manner. A telescoping rod assembly allows adjustment of the length of the fixator by a single individual.

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 invention relates to the technical field of motion perception, in particular to an intelligent physical education real-time feedback system and method based on motion perception. The device comprises a joint capturing unit, a deviation coordination unit and an adjustment feedback unit. An angle judgment module calculates an upper arm vector and a front arm vector of an arm part, the dot product of the upper arm vector and the front arm vector is calculated according to the upper arm vector included component of the arm part and the front arm vector included component of the arm part, and the component of the upper arm vector of the arm part is used for calculating the modulus of the upper arm vector; calculating a model of a forearm vector by using a component of the forearm vector of the arm part, calculating an action angle of a joint by combining an upper arm vector and a forearm vector dot product with the model of the upper arm vector and the model of the forearm vector, judging whether the captured whole-body action of the student is a common activity or a movement, and calculating the whole-body action of the student through vector calculation and angle derivation. The action amplitude and speed of the joints can be accurately quantified, the error of subjective judgment is avoided, and the accuracy of analyzing the actions of students is improved.

Dynamic arm brace assemblies and methods of use are provided herein. An example device includes a torso connection member securable to a torso of a patient, a forearm support member that couples with at least a forearm of an patient, the forearm support member couples with the torso connection member so as to fix an elbow of the patient proximate the torso, the forearm support member being pivotally coupled to the torso connection member to allow for an angle between the forearm support member and a coronal plane of the patient, and a dynamic tensioning assembly that externally rotates the forearm support member and selectively sets the angle so as to stretch a shoulder capsule (capsule and adjacent tissue(s)) affected with adhesive capsulitis, reducing the adhesive capsulitis.

The invention belongs to the technical field of industrial robots, and particularly relates to a wrist joint wire harness structure of a six-axis industrial robot. Comprising a forearm, a wrist joint, a wrist joint supporting sleeve, a six-axis motor and a spiral wire harness, the wrist joint supporting sleeve is fixed to the front end of a forearm side plate of the forearm, the wrist joint is rotationally connected with the wrist joint supporting sleeve, the six-axis motor is arranged on the wrist joint, the spiral wire harness is contained in the wrist joint supporting sleeve, the inner side end of the spiral wire harness is fixed to the wrist joint, and the outer side end of the spiral wire harness is fixed to the forearm side plate. The outer side end of the spiral wire harness is fixed to a forearm side plate and connected with a wrist joint cable led out of an inner cavity of the forearm, and the wrist joint rotates to drive the inner side end of the spiral wire harness to rotate forwards or reversely in the spiral direction. The wire harness layout is simple, the cable reliability and the transmission precision are improved, the sealing performance is better, and the efficiency is higher.

An animal-waste collection apparatus includes an elongate shaft with adjustable length, a forearm-stabilising assembly at a proximal region, and a coupling assembly at a distal region. The coupling assembly provides multi-axis articulation between a first coupling element fixed to the shaft and a second coupling element borne by interchangeable attachment bodies. A first attachment body supplies a support structure defining a seat for a removable receptacle, and a second attachment body comprises opposing jaws movable between open and closed positions to retain a flexible bag. Each attachment body is interchangeably engageable with the coupling assembly through the second coupling element. The apparatus enables selective collection of liquid or solid waste while permitting ergonomic handling across varied user statures and physical abilities.

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 invention relates to the technical field of robots, and particularly discloses a bionic humanoid mechanical arm which comprises a shoulder joint module, a big arm module, an elbow joint module, a small arm module and a wrist joint module which are connected in sequence. The wrist joint module realizes two-degree-of-freedom flexible movement through a regular octahedron tensegrity structure, and the rotation centers of the wrist joint module naturally intersect at one point and are connected with the rolling shaft in series to form three-degree-of-freedom concurrent rotation; the length-adjustable supporting rod in the flexible structure changes the joint rigidity in real time and dynamically adapts to the load change so as to enhance the man-machine interaction safety; an elbow joint adopts a virtual pitch circle rolling mechanism, all joint-crossing driving rope paths are forced to remain unchanged, and multi-joint motion coupling is eliminated from the mechanical intrinsic level; a driving motor and a rope wheel system are arranged on the large arm module in a centralized mode, the rope tensioning state is continuously optimized in cooperation with a ratchet wheel type self-locking tension mechanism, and the tail end inertia is reduced under the condition that an elbow and wrist joint motor is completely removed.

A gameplay paddle with an ergonomic angled handle is disclosed. The angled game paddle handle allows for perfect straight-out extension of the forearm and wrist creating maximum reach and the greatest amount of hitting surface or better control of the ball.

The invention provides a protective garment tailored for ice hockey players to safeguard critical areas susceptible to blade injuries. This garment includes a collar, left and right sleeves with specific upper arm and forearm portions, and a torso portion. Strategically integrated portions of cut-resistant polyethylene material are present in the collar and forearm sections. Some embodiments also incorporate other fabrics, such as aramid variants, while non-cut-resistant sections may be made from blends like polyester and spandex.

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.

A forearm exerciser is provided, including an exerciser body, wherein the exerciser body is of a cylindrical structure and includes a winding portion in the middle and grip portions symmetrically arranged at both ends of the winding portion. A suspension rope is connected to the winding portion, and an inner ring for allowing the rod body to pass through is formed at a central axis of the exerciser body, so as to ensure the training effect of the forearm and ensure the safe training of a trainee.

The invention discloses an upper limb rehabilitation exoskeleton with a shoulder-arm linkage mechanism, which belongs to the field of rehabilitation devices and comprises a supporting platform, the shoulder-arm linkage mechanism, a shoulder joint mechanism, a big arm and elbow joint mechanism and a front arm and hand mechanism. The shoulder-arm linkage mechanism is connected to the supporting platform in a sliding mode, the shoulder joint mechanism is connected to the free end of the shoulder-arm linkage mechanism, the large arm and elbow joint mechanism is connected to the free end of the shoulder joint, and the front arm and hand mechanism is connected to the free end of the large arm and elbow joint mechanism. A joint actuator is linked through parts such as a gear reduction box and a worm and gear reduction box, so that the rotation center of an exoskeleton shoulder joint can rotate around a set point on a frontal plane so as to shift along with the rotation center of the shoulder joint when the shoulder joint of the human body expands and contracts, and therefore, the dislocation of the upper limb of the human body when the upper limb of the human body moves along with the exoskeleton is reduced; and the wearing comfort of the exoskeleton is improved. The exoskeleton shoulder-arm linkage mechanism is simple in structure, reliable in movement and lower in cost compared with an active shoulder following mechanism driven by a motor.

A device immobilizes a shoulder joint and associated upper arm and forearm of a human patient in a selected relative position. The device comprises a platform including a planar base portion and a pair of opposed parallel side walls extending upwardly from the longitudinal edges of the base portion. The platform supportively receives and at least partially encloses the forearm of the patient. A mount defining a terminal slot is integral with at least one side wall. A belt is provided for securing around the waist of the patient. A belt clip attaches between the belt at a side of the body corresponding to the shoulder to be supported and the platform. The belt clip includes a lug projecting outwardly from the clip and corresponding in size and shape to the terminal slot for insertion into the slot, wherein the platform is suspended from the belt.

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.

A firearm forearm assembly is provided. Generally included is a forearm retainer that is a flexible component installed in the forearm, which is then momentarily deflected to admit each action bar. Once the forearm assembly is installed in the firearm, the firearm's magazine tube is introduced and prevents further deflection of the retainer, thus locking the forearm assembly together during use. As a result, the forearm assembly is easily disassembled by the user without the use of tools by deflection of the retainer and removal of the action bars. But at the same time, the integrity of the firearm is preserved during operation.

The utility model relates to the technical field of medical auxiliary devices, in particular to an auxiliary movement device for upper limb nursing after a mammary gland operation. The base is horizontally placed on a table board and surrounds the front side of the body of a patient, the upper arm moving assemblies are movably arranged on the left side and the right side of the base respectively and used for placing upper arms on the two sides respectively, and the forearm moving assemblies are rotationally arranged at the front ends of the two upper arm moving assemblies respectively and used for placing forearms on the two sides respectively. The sliding angle adjusting assemblies are arranged on the left side and the right side of the base correspondingly and used for limiting the moving angle range of the upper arm moving assemblies, and the rotating angle adjusting assemblies are arranged at the joints of the upper arm moving assemblies and the front arm moving assemblies on the same sides correspondingly and used for limiting the rotating angle range of the front arm moving assemblies on the corresponding sides. The device solves the problem that a patient cannot perform rehabilitation training accurately according to the movement amplitude guided by a doctor.

Disclosed is a device for total wrist fusion that includes (a) a first section, which is preferably a plate, that is positioned under the skin on top of the forearm, wrist and potentially part of the hand and connected to one or more of the radius or carpal bones, (b) a second section, which is preferably in the shape of an awl and is received in the cannula of the third metacarpal bone. Optionally, an anti-rotational third section may be included, which can connect to the top of the third metacarpal bone.

The invention provides an upper limb multi-joint trauma rehabilitation condition diagnosis device, and belongs to the technical field of medical instruments, the upper limb multi-joint trauma rehabilitation condition diagnosis device comprises a supporting part, two sides of the supporting part are rotatably connected with turntables, one side of the supporting part is fixedly provided with a pointer A, and the pointer A points to a scale line located outside the turntable on one side; a driving switching assembly is arranged on the outer side of the rotary disc on the other side, and connecting frames are fixed to the front ends of the rotary discs. Through cooperation of the big arm groove, the rotating disc, the pointer A, the connecting frame and the driving switching assembly, the rehabilitation degree of the elbow joint can be judged through autonomous or electric flexion and extension, training is assisted, the wrist is fixed through the clamping assembly, the forward and backward rotation rehabilitation condition of the forearm can be diagnosed in combination with the torsion diagnosis mechanism and the locking clamping belt, multi-angle rehabilitation diagnosis of the elbow is achieved, and the rehabilitation effect is good. The inflatable assembly is matched with display cloth, an elastic rope and the like, wrist flexion and extension and finger movement conditions can be trained and diagnosed, upper limb multi-joint collaborative or independent diagnosis is achieved, and the rehabilitation training function is achieved when the device is matched with multi-joint trauma rehabilitation diagnosis.

The present invention discloses an upper limb muscle rehabilitation training device based on electrical stimulation induction, comprising: a first main body, the first main body comprising a forearm section, a wrist section, and a palm section, the forearm section and the palm section both being provided with stimulation electrodes, the forearm section being connected to the wrist section, and the wrist section being connected to the palm section; and a second main body, the second main body corresponding to the forearm section and provided with stimulation electrodes; the first main body and the second main body being hinged, and a locking mechanism being provided between the first and second main bodies, the locking mechanism being used to lock the open and closed state between the first and second main bodies. The upper limb muscle rehabilitation training device disclosed in the present invention can induce coordinated active contraction during training, enabling the hand to complete coordinated grasping and stretching movements, thereby promoting the completion of training movements, maintaining neuromuscular excitability, and preventing or delaying muscle atrophy.

The utility model discloses an upper limb flexion and extension straight training device, which comprises a base, an overturning seat, a first supporting plate, a second supporting plate and a driving unit, the rear part of the overturning seat is rotatably connected with a lug boss above the base through a first rotating shaft, the first supporting plate is adjustably arranged on the overturning seat, the front end of the second supporting plate is movably connected with the base, and the driving unit is arranged on the overturning seat. The driving unit is arranged on the inner side of the base, the rear end is rotationally connected with the base, and the front end is rotationally connected with the overturning base. When the upper limb rehabilitation training device is used, a patient only needs to place the forearm on the first supporting plate and place the upper arm on the second supporting plate, then the driving unit drives the overturning base and the first supporting plate to overturn up and down, and therefore the bending and stretching straight movement of the upper limb is achieved, operation is easy and convenient, and the patient can independently complete training without assistance of other people; and therefore, the use convenience of the device is improved.

The invention provides protective garments tailored for ice hockey players to safeguard critical areas susceptible to blade injuries. The garments include an upper body garment with a collar, left and right sleeves with specific upper arm and forearm portions, and a torso portion, as well as a pair of pants with strategically placed protective elements. Strategically integrated portions of cut-resistant ultra-high-molecular-weight polyethylene (UHMWPE) material are present in the collar, forearm sections, inner thighs, and above the knees on the front of the thighs. Some embodiments also incorporate other fabrics, such as aramid variants, while non-cut-resistant sections may be made from blends like polyester and spandex. The collar may take various forms to provide the wearer with configurable protection, and the pants offer additional features such as Velcro straps for hockey socks and pockets for optional groin cups.