784 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.

The invention belongs to the technical field of medical diagnosis and treatment evaluation, and particularly relates to a dyskinesia treatment effect evaluation system based on HD-sEMG and neuron analysis. According to the method, the pathological tremor symptom of the hand of the dyskinesia patient is induced, front arm HD-sEMG data are collected, and the improvement effect of the pathological tremor symptom of the dyskinesia patient before and after DBS treatment is analyzed and evaluated; the system comprises: a data acquisition platform for recording surface myoelectricity data of forearm flexor muscle and extensor muscle; the data preprocessing module is used for removing noise and baseline drift through filtering and improving the signal quality; the motion unit decomposition and recognition module is used for decomposing and recognizing the motion units of the flexor muscle and the extensor muscle of the forearm; the microcosmic neuron characteristic analysis module is used for analyzing neuron discharge characteristics and reflecting the change condition of neural control; the improvement condition of tremor symptoms is evaluated by comparing neuron characteristic changes before and after brain deep electrical stimulation treatment, and a doctor is assisted in optimizing a treatment scheme, so that the treatment effect is improved, and the life quality of a patient is improved.

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.

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 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.

An apparatus that supports a user in a variety of positions to comfortably perform tasks, such as applying one or more tattoos to skin of a subject is herein disclosed. The apparatus can be reconfigured to optimally position and support the arms and / or chest of the user. The apparatus includes a vertically movable armrest assembly. Armrests can support the user's forearms while supporting the user's chest such that the user can comfortably perform tasks in front of a chest support of the stool. The armrest assembly can be translated vertically to accommodate the user's body to achieve desired positioning.

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 invention belongs to the technical field of medical equipment, and relates to an orthopedic emergency treatment splint fixing device, which comprises four arc-shaped splints, two clamping plates, four groups of clamping strips and two auxiliary plates, each first distance adjusting mechanism is used for adjusting the distance between the two connecting strips which are oppositely arranged so as to adapt to increase and decrease of swelling at different positions of the upper arm and the front arm; and the second distance adjusting mechanism is used for adjusting the distance between the two auxiliary discs so as to adapt to increase and decrease of elbow joint swelling. The distance between the two oppositely-arranged connecting strips can be adjusted respectively, the two oppositely-arranged clamping strips can adapt to increase and decrease of swelling of different positions of the upper arm and the forearm of a patient through rotating connection of the two adjacent connecting strips, meanwhile, the distance between the two auxiliary discs is adjusted, increase and decrease of elbow joint swelling are adapted, and the patient can feel more comfortable. Blood circulation disorder, fracture broken end displacement and the like of the affected limb caused by too tight or too loose clamping of the affected limb are avoided, and the pain of a patient is relieved.

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.

According to the upper limb forearm and wrist rehabilitation mechanism based on the double-layer four-rod tensioning structure, the overall tensioning structure is combined with the mechanism design, and the rigid-flexible mixed characteristic of the overall tensioning structure composed of the four-rod flexible stretching unit and the four-rod rigid compression unit is utilized; the problems that a traditional rehabilitation mechanism is too complex, a driving device is huge, and equipment light weight is insufficient are solved. A wrist support seat in the wrist rehabilitation mechanism is connected with an upper fixing ring in the forearm tensioning integral mechanism through a bolt. Compared with the prior art, the invention has the following technical effects: the rigid-flexible mixed characteristic of the tensegrity structure is utilized to meet the requirements of motion of each degree of freedom, meanwhile, the structure of the exoskeleton is simplified, the lightweight design is realized, and the torsion angle can be increased and the flexibility can be improved through the mutual compensation of the internal length in the motion process. And the overall height of the mechanism can be kept unchanged.

An apparatus that supports a user in a variety of positions to comfortably perform tasks, such as applying one or more tattoos to skin of a subject is herein disclosed. The apparatus can be reconfigured to optimally position and support the arms and / or chest of the user. A method for using a stool can involve rotating armrests of the apparatus from a stowed position to a deployed position. The armrests can support the user's forearms while supporting the user's chest such that the user can comfortably perform tasks in front of a chest support of the stool.

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.

A device (1) for storing objects, intended for attachment to a person's limb, comprises at least two receiving elements (2, 3), one receiving element (2) being intended for attachment to the forearm or lower leg and the other receiving element (3) being intended for attachment to the upper arm or thigh, respective first connecting elements (4) for attaching the receiving elements (2, 3) to the person's limb, at least two containers (5) for storing the objects, respective second connecting elements (4) for connecting the containers (5) to the receiving elements (2, 3), and a connecting device (7) for connecting the two receiving elements (2, 3) to each other. When the device (1) is used as intended, the connecting device (7) is located in the area of ​​the person's elbow or knee. The connecting device (7) is designed such that rotation of the forearm relative to the upper arm or thigh is prevented.of the lower leg relative to the thigh around at least two axes is possible.

The invention provides a 2-RPR / RP parallel pneumatic muscle wrist exoskeleton, which relates to the field of medical instruments and comprises a forearm supporting unit, an RPR branch chain, an RP branch chain and a tail end handle unit, during use, the tail end handle unit is arranged close to the palm of the human body, and the forearm supporting unit is arranged close to the elbow of the forearm; the tail end handle unit is arranged on the RP branch chain and is used for being grabbed by a palm; the forearm supporting unit is used for being fixedly connected with a forearm; the two ends of the RPR branch chain are hinged to the front arm supporting unit and the RP branch chain respectively. The two RPR branch chains are arranged on the two sides of the RP branch chain and the front arm supporting unit in a bilateral symmetry mode and used for driving the tail end handle unit to swing left and right through the RP branch chain. The pneumatic muscle is adopted as a driving element, so that the driving capacity of the device is greatly improved, and the device is compact in structure, small in size, wide in movement range and capable of effectively adapting to various wrist rehabilitation trainings.

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 utility model discloses a mammary gland post-operation upper limb raising frame, including clamping subassembly, adjusting subassembly and support pad, adjusting subassembly is provided clamping subassembly upper end, adjusting subassembly includes connecting rod, base plate, adjusting plate and support pillar, connecting rod lower end with clamping subassembly, connecting rod upper end with base plate, adjusting plate one end with base plate hinge joint, supporting pillar lower end with base plate hinge joint. The adjusting plate is arranged on the base plate and divides the base plate into a front end and a rear end, grooves are formed in the rear end of the base plate at intervals in the length direction of the base plate, the other end of the adjusting plate can be clamped in the grooves in the rear end of the base plate through the supporting columns, and the supporting pad is detachably connected with the front end of the base plate and the adjusting plate; one end of the adjusting plate is hinged to the bottom plate, the other end of the adjusting plate can be clamped in the groove through the supporting column, the supporting angle of the adjusting plate can be changed, then the forearm of a patient is lifted, meanwhile, the bottom plate is divided into the front end and the rear end, the big arm of the patient can be supported through the front end, and the supporting effect is good. And discomfort of a patient caused by suspension of the big arm or direct pressing of the big arm on the bed board during lifting treatment is prevented.

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.

The arm fixing device used after the brachial artery intervention operation comprises a first fixing assembly, a second fixing assembly and a lifting assembly, the first fixing assembly is used for fixing the forearm of a patient, the second fixing assembly is used for fixing the upper arm of the patient, one end of the first fixing assembly is hinged to one end of the second fixing assembly, and the other end of the second fixing assembly is hinged to the lifting assembly. A groove used for fixing the elbow joint of a patient is formed in the connecting portion of the first fixing assembly and the second fixing assembly, the lifting end of the lifting assembly is connected with the first fixing assembly, and in the using process, the included angle between the first fixing assembly and the second fixing assembly is changed through the lifting assembly to assist the patient in lifting the arm, so that venous return is promoted; and secondly, a groove is formed in the connecting part of the first fixing assembly and the second fixing assembly, and the elbow joint protrusion is arranged in the groove, so that the arm of the patient can be supported and prevented from sliding down, the pressure on the elbow joint protrusion can be reduced, and the comfort of the patient during use is improved.

The invention provides a hemodialysis fixing and hemostasis device which comprises a movable seat and a base, the movable seat is located above the base, an arc-shaped groove is formed in the upper surface of the movable seat, a silica gel pad is installed in the arc-shaped groove, two adjusting mechanisms are installed on the side wall of the movable seat, and hemostasis auxiliary mechanisms are installed on the adjusting mechanisms; the bottom, close to the rear side, of the movable seat is fixedly connected with the top of a rotating shaft. The movable seat is rotationally connected with the base through the rotating shaft. A clamping block is connected to the bottom, close to the front end, of the movable seat, an arc-shaped clamping groove is formed in the upper surface, close to the front end, of the base, and the clamping block is clamped in the clamping groove and is in sliding fit with the clamping groove. By means of the base and the rotating shaft, the movable seat can support and position the forearm and bear the forearm of a patient to move left and right at the same time, muscles of the big arm and the shoulder are moved, and arm fatigue of the patient is relieved; the hemostasis auxiliary mechanism is used for conducting auxiliary pressing hemostasis on the two needle openings in the forearm of the patient, and manual pressing hemostasis of medical staff is replaced.

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 provides a mammary gland postoperative rehabilitation exercise device which comprises a mounting frame and an exercise mechanism, the mounting frame comprises a base, a stand column and a mounting seat, and the exercise mechanism comprises a first rotating plate, a driving mechanism, a second rotating plate and a transmission mechanism. During exercise, the upper arms and the forearms of the upper limbs are placed on the first rotating plates and the second rotating plates respectively, then the driving mechanism is started to drive the two first rotating plates to rotate in a reciprocating outward opening and closing mode, the two first rotating plates rotate in a reciprocating outward opening and closing mode to drive the two large arms to conduct chest expanding motion, and the two large arms are driven to conduct chest expanding motion while the two first rotating plates rotate in a reciprocating outward opening and closing mode. Two groups of transmission mechanisms drive two groups of second rotating plates to fold and expand in a reciprocating manner, the two groups of second rotating plates fold and expand in a reciprocating manner to drive two forearms to perform elbow bending movement, a patient does not need to exert force by himself, long-term persistence of the patient is facilitated, and chest expanding and elbow bending movement of the patient are facilitated at the same time; the exercise effect and the application range of the device are improved.

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.