1019 results about "Finger joint" patented technology

The invention relates to an upper limb rehabilitation training robot which comprises a first joint, a second joint, a third joint, a fourth joint and a fifth joint; the five joints are sequentially connected serially; the movement of all the joints respectively corresponds to the unfolding/folding of shoulder joints, the bending/extension of the shoulder joints, the bending/extension of elbow joints, the internal rotation/external turning of forearms, the bending/extension of wrist joints and the bending/extension of fingers; all the joints of the robot are driven by independent motors; each joint is provided with a mechanical hard limit and an electric limit to protect the training of a patient; and the second joint and the fourth joint are respectively provided with a adjustment device capable of adjusting relative positions between the second joint and the third joint and between the third joint and the fifth joint. The upper limb rehabilitation training robot provides various rehabilitation movement for the turning of the shoulders, elbows and forearms as well as the wrist and finger joints of the upper limbs of the patient in a three-dimensional space, and can complete the upper limb rehabilitation training to the upper limbs of the patient with higher quality.

When air is supplied by an air pressure regulation part to bellows 211 through 213 of finger joint motion facilitation parts 110_j (where j=1, . . . , 5), the bellows 211 through 213 expand approximately in the shape of circular arcs, since annular grooves on the side of the bellows 211 through 213 opposing a joint are elastically restrained by elastic members 241 through 243. Due to this, the bellows 211 through 213 cooperate, and exert force in the rotational direction to flex the first through the third joints of a finger from their extended states. Next, when air is exhausted from the bellows by the air pressure regulation part, the bellows 211 through 213 contract. Due to this, the bellows 211 through 213 cooperate, and exert force in the rotational direction to extend the first through the third joints of a finger from their flexed states. The forces generated in this manner are transmitted to the joints by transmission members 231 through 234. As a result mounting becomes simple, and also it is possible to facilitate sufficient joint movement for each joint.

The invention discloses a pair of data gloves based on a micro-inertial sensor network technique. Each data glove comprises a plurality of micro-inertial sensors mounted in the glove, as well as a data acquisition and control module arranged on a hand back part on the outer side of the glove, wherein each micro-inertial sensor is a small AHRS (attitude and heading reference system), and comprises a triaxial MEMS (micro-electromechanical system) micro-gyroscope, a triaxial micro-acceleration sensor and a triaxial geomagnetic sensor which are packaged in a circuit board; and the micro-inertial sensors are mounted in the glove and correspond to parts between finger joints, and are combined to form a sensor network. The micro-inertial sensors are distributed at independent movement parts of each data glove reasonably, a gesture attitude is worked out based on the attitude and heading resolving principle, and hand gestures are captured in real time with high accuracy. A central embedded type system in each data glove controls and processes data in the sensors, and sends the data to an upper computer in a certain protocol form. The pair of data gloves based on the micro-inertial sensor network technique are convenient to use and not restrained by the light condition.

A protective glove is disclosed having a flexible liner conforming to the shape of a hand and wrist and having a plurality of rigid guards secured thereto over the distal, middle, and proximal phalanx bones, the metacarpals, and wrist bones of the wearer. A distal guard is shaped as a cup placed over the posterior side of the distal phalanx bone. Middle and proximal guards protect the middle and proximal phalanx bones of the hand and may be embodied as rings positioned slightly distal of the finger joints and having extensions extending distally therefrom. A metacarpal guard secures to the posterior of the glove over the metacarpals and extends toward the anterior of the hand, providing a cutout to receive the thumb. A wrist guard encircles the liner over the wrist bones and is spaced apart from the metacarpal guard to permit wrist articulation.

An arthrodesis implant is for a finger joint of a hand of a patient. The arthrodesis implant may include an extramedullary proximal anchor including a first member having a fastener-receiving passageway therethrough to receive a fastener to anchor the first member to an extramedullary portion of a proximal bone of the finger joint of the hand of the patient. The arthrodesis implant may also include an intramedullary distal anchor having a second member for being anchored within an intramedullary portion of a distal bone of the finger joint of the hand of the patient, and a coupling for securing the first and second members together.

The invention discloses a free-scene egocentric-vision finger key point detection method based on a depth convolution nerve network. The method comprises following steps of S1: obtaining training data, obtaining a region including a hand via proper positioning technology and manually marking coordinates where finger key points locates, wherein the finger key points include finger tips and finger joint pints; S2: designing the depth convolution nerve network and by using the depth convolution nerve network, solving a point coordinate regression problem; S3: training weighing parameters of the depth convolution nerve network via a large number of marking samplings, and after the weighing parameters become stable via certain iteration, obtaining multiple layer of convolution kernel parameters; and S4: using any one foreground picture as input and precisely obtaining finger key point coordinates after calculation of network parameters. The detection method is quite high in precision and good in robustness.

A hand interface glove using a miniaturized absolute position sensor and a hand interface system using the same for allowing a user to naturally interact with a virtual environment are provided. The hand interface glove includes a glove unit formed in a shape of a hand to be worn by a hand; a sensor unit for sensing analog signals representing absolute positions of finger joints, which change according to motions made by the finger joints, by disposing a plurality of miniaturized absolute sensors tracking the absolute positions of finger joints at predetermined positions of the glove unit corresponding to finger joints; and a data collecting unit for receiving the sensed analog signals from the sensing unit, transforming the analog signals to digital signals through amplifying and filtering the received analog signals, and outputting the digital signals.

The invention discloses data gloves for function rehabilitation training and assessment of hands. Each data glove further comprises bent sensor groups which are arranged on the hand back side inside the each data glove in a packaged mode and flexible pressure sensor groups which are arranged on the palm side inside each data glove. The bent sensor groups are placed on finger joints, the pressure sensor groups are placed on the a plurality of key nodes where a hand is in contact with an object when the object is grabbed, and lead-out lines of the bent sensor groups and lead-out lines of the pressure sensor groups are packaged inside each data glove, collected to the outer side of a forearm via the hand back side, and connected with a subsequent hardware processing circuit. The data gloves for the function rehabilitation training and the assessment of the hands are strong in wearability and capable of collecting finger bending angle information and palm pressure information of the hands of a patient, the finger bending angle information and the palm pressure information are used in the hand function rehabilitation training under a virtual environment, and quantitative assessment results of a muscle force range from no joint movement to movement capable of resisting normal resistance can be given.

The invention relates to a carbonized figure jointed glulam lumber and a manufacturing method. The carbonized figure jointed glulam lumber is a one-layer integrated board, or one or several layers of lateral battens laying in the sandwich layer and the integrated board with more than two layers is glued in parallel in the direction of thickness. Each layer of the integrated board is made of standard battens formed by gluing many short battens through finger-jointing and tenoning, and then the standard width is formed by gelatinizing on the side of the batten and gluing and joining in parallel. The process of the method includes: log truncation, sawing, carbonization, chopping, finger-jointing, repairing, sanding and repairing; second glue jointing: gelatinizing; testing, warehousing. The advantages are that part of the chemical and physical properties of wood are changed permanently; hydrophilic property of the lumber is reduced and the inner stress is eliminated completely; the color of the wood is darkened and the wood texture is clear; the contained resin inside the wood is removed so that the wood can be glued and finished; the drying operation is substituted by the high temperature carbonization technique; the carbonized figure jointed glulam lumber is of stable size and shape, of no craze and resin and of clear texture and good durability.

An instrument holder, which may be separate from or integral with the instrument for persons with or without physical disabilities. A central bore enables insertion of instruments of varying shapes. Gripping surfaces include a compound bevel downward and with a decided right or left hand slope. Elements from a top palm rest to the lower planar surface are volute, forming a right or left hand spiral. At the rear, the palm rest curves aft and under terminating in the bevelled vertical detente. The hand specific side forms a concave surface sufficient to accommodate fingers, joints, knuckles, or hand webbing between finger joints, flaring outward joining the lower planar surface. From the upper rear bevel detente, the back forms a slightly convex surface connecting with the bottom. The body and instrument path is reversible exposing the larger circumference area of the palm rest along with other control surfaces. One version having an hour glass-shaped body with a truncated periphery forming a gripping surface with a curved concave surface portion enable the user to grip the device in any one of a variety of different ways.

Precast planar construction wall blocks are provided with various configurations of fingers. Structures are rapidly assembled by aligning the fingers and inserting a pin through vertical sleeves provided in the fingers. Finger joints are typically shimmed and grouted for additional strength. Openings for doors and windows are provided in some wall blocks. Floor blocks are supported on ledges at the top of wall blocks or by portions of the top edges of wall blocks. A concrete or other topping may be added to floor blocks, and conduit may be run in the topping.

The present invention discloses improved heatsink designs and methods for cooling a heat source. One embodiment is a heatsink assembly for removing heat from an electronic component, the heatsink assembly comprising a copper-based core section having a first surface generally adapted to conform to an exposed mating surface of an electronic device and a second surface having a generally convex curvature having a greater surface area than the first surface. An aluminum-based outer section has a first surface comprising a concave curvature that is generally adapted to conform to the convex curvature of the core and a second surface. A plurality of fin elements protrude outwardly from the second surface of the outer section. At least one cooling fan can be positioned to direct airflow onto the fin elements. The core section can comprise a semi-spherical shape and can be joined by a finger-joint type connection to the outer section. A key design element of the present invention is the speed in which the heat is transferred away from the heat source. Due to a concentration of material having greater thermal conductivity located near the heat source, heat is allowed to transmit further and faster away from the source than with previous heatsink designs and is distributed more evenly throughout the main heatsink structure.

The invention relates to a finger motor function rehabilitation robot comprising an executing part and a driving part which are connected by steel wire rope outer sleeves (5a, 5b, 5c and 5d), wherein the executing part is divided into a palm bone joint module (2), a near-end joint module (3) and a far-end joint module (4); and the driving part is divided into four independent driving modules (1a, 1b, 1c and 1d) to drive the executing part. Because the whole system realizes far distance and variable distance transmission though steel wire ropes, the hands of people can arbitrarily move in a certain range in a rehabilitation process. The invention has the advantages that each joint of fingers is singly driven in a bidirectional mode; the robot has mechanical position-limiting function and can regulate the maximal rotating range of each finger joint to satisfy the requirement of different motion ranges of a patient in different rehabilitation periods; and the robot is suitable for hands with different sizes to wear in a certain range, and the hands can arbitrarily move in a certain range.

The invention relates to a medical rehabilitation training instrument, in particular to an interchangeable upper limb rehabilitation robot.The interchangeable upper limb rehabilitation robot comprises a movable bottom plate, a control cabinet, a stand column lifting column, an interchangeable upper limb rehabilitation mechanism and a height-adjustable seat.The control cabinet and the stand column lifting column are fixedly arranged on the upper portion of the rear end of the movable bottom plate, the lower portion of the stand column lifting column is fixedly arranged in the control cabinet, and the interchangeable upper limb rehabilitation mechanism is movably fixed to the top end of the stand column lifting column and comprises a shoulder joint adduction and abduction mechanism, a shoulder joint flexion and extension mechanism, a shoulder joint internal rotation and outer overturn mechanism, an elbow joint flexion and extension mechanism, a forearm internal rotation and outer overturn mechanism and a wrist and finger joint extension mechanism in the connection sequence.The interchangeable upper limb rehabilitation robot is comprehensive in function, adjustable in length of assemblies and high in adaptability, and left hand and right hand interchange training can be achieved; besides, active assistance is provided, and investment of medical personnel is reduced.

A gripping type hand including a plurality of finger mechanisms provided respectively with finger joints, actuators for driving the finger joints, and links supported by the finger joints and operating under driving force of the actuators. The gripping type hand includes an operation controlling section capable of respectively controlling the actuators of the plurality of finger mechanisms independently from each other; a position detecting section for respectively detecting operating positions of the finger joints of the plurality of finger mechanisms; and strain detecting sections provided respectively for the plurality of finger mechanisms and detecting strains generating in the links due to force applied to the finger mechanisms. The operation controlling section coordinately controls the actuators of the plurality of finger mechanisms to adjust gripping force generated by the plurality of finger mechanisms, based on the operating positions of the finger joints detected by the position detecting section and the strains of the links detected by the strain detecting sections.

The invention provides an exoskeleton hand rehabilitation training device for hand rehabilitation training of a stroke patient. The exoskeleton hand rehabilitation training device mainly comprises a finger driving device, a hand supporting assembly, a wrist supporting assembly and a motor driving device. The finger driving device is installed on the hand supporting assembly. The hand supporting assembly and the motor driving device are installed on the wrist supporting assembly. Power of a motor is transmitted to the finger driving device through a steel wire flexible shaft assembly, finger joints can move through gear transmission, the four fingers can be driven independently, the structure is simple and easy to obtain, and due to the rear motor driving device and the steel wire flexible shaft driving mode, the weight of the finger exoskeleton structure is lowered. Due to the fact that an arc track structure is arranged on the finger driving device, the rotation center of the exoskeleton device and the rotation center of the finger joints are kept consistent, and the finger driving device can adjust the length of the exoskeleton finger and replace a finger fixing ring according to the lengths and radiuses of fingers of the patient.

For hand signal enhancement, a reversible, flexible illuminated framework, for wearing upon the human hand or over gloves. Emanating from a wrist cuff, the framework comprises four or more rope light type LED illumination elements, that provide constant on, flashing, or sequential illumination, a battery pack upon the wrist cuff, an index finger mounted switch unit; the rope light is capable of various color illumination through use of waterproofed colored or clear translucent sheaths, the light elements are connected together with a web strap midway along the length of the light elements; fabric fingertip caps terminate the light elements and hold the light elements inline with the fingers of the hand; a Velcro band upon the light elements at the first finger joint of the index and the ring fingers keeps the lighting elements from rotating upon the fingers during use.

A pre-cut, pre-painted shutter door includes a pair of vertical members available in a range of discrete or quantum heights, and having a two level slot along their length for engaging an upper and a lower panel to form the outer portions of a shutter door. Vertical members are preferably pre-tapped with bores to facilitate threaded member access to engagement for attachment to the upper and lower panels. The upper and lower panels have a curved surface to either facilitate direct manual pivoting of the louvers or to provide clearance for an optional common actuator bar. A louver pivot support fits within the two level slot of the vertical members and carries a series of pre-drilled holes for pivotally supporting the louvers. Both the vertical members, panels and louver member supports are of constant cross section to facilitate the use of finger joints and to promote continuous extrusion-type processing. A series of louvers have shafts which extend through pre-drilled holes in the louver pivot supports. Louver shafts may carry gears engaging a gears fittable within a clearance between the louver pivot supports and the more inner level of the two level slot to accommodate a gear rack engaging the gears of the louver shafts to provide simultaneous movement of the louvers with linear translation of the gear rack.

A three-finger mechanical gripper with a variable structure relates to a three-finger mechanical gripper and solves problems of large size, high maintenance cost and gripping structural limitation of the whole gripper in the present three-finger mechanical gripper. Three rotating shafts are evenly distributed on a rotating pedestal; an output shaft of a motor on the bottom end of each finger is fixedly connected with a corresponding worm rod; each worm rod is engaged with a corresponding worm gear; each small straight gear is engaged with a large straight gear; an output shaft of each finger joint motor is fixedly covered with a coupling connection rod; one end of the coupling connection rod is connected with the tail end of a short side of a second joint via a first driving rod; the other end of the coupling connection rod is connected with one end of a second connection rod and one end of a first connection rod via a second driving rod; the other end of the first connection rod is connected with the second joint; and the tail end of the long side of the second joint and the other end of the second connection rod are both connected with a first joint. The three-finger mechanical gripper with the variable structure can be applied to the technical field of robots.

The invention discloses a two-finger four-pin automatic picking and placing device for plug seedling transplanting. The device comprises a mechanical cantilever sleeve 1, a mechanical finger frame 2, rubber fingers 4, a support rod 5 and a mechanical finger spacing block 9 which are fixedly connected in sequence along the direction of the same center line, wherein each mechanical finger comprises a mechanical finger joint 3, a micro-cylinder 6, a mechanical finger sleeve 7, a clamping pin spacing block 11 with a longitudinal spacing groove and a clamping pin 14 which can slide in the longitudinal spacing groove and is fixedly connected with a piston rod of the micro-cylinder 6; the upper ends of the mechanical finger joints 3 are symmetrically hinged on two sides of the mechanical finger frame 2; the mechanical finger sleeve 7 passes through the chute of the mechanical finger spacing block 9, and can move in the chute along the chute direction; the two mechanical fingers and the support rod are pre-tightened together through a tightening spring 8; and the tightening spring 8 is positioned on one side of the mechanical finger spacing block 9, far from the tail end of the mechanical finger, and is close to the mechanical finger sleeve 7. The device is low in cost and hardly damages seedlings, and can be used for automatic transplanting of plug seedlings with different specifications.