44 results about "Metacarpus" patented technology

A glove-like apparatus mounted on a user's hand to control the cursor movement and to click for providing functions of a computer mouse. The apparatus has a glove-like body with multiple finger tubes. A tilt sensor is mounted on the glove metacarpus, of which the roll angle of the hand is detected to determine the moving orientation of the cursor. Two pairs of bending sensors are mounted on the thumb tube and the index finger tube, each pair of the sensors is used to detect a bending angle of the corresponding finger. The bending of the thumb or the index finger at a time is used to move the cursor in the negative or the positive direction along the located orientation line. The data glove for cursor control is operated as a virtual mouse with a virtual tracking ball.

A prescription is provided which specifies constraints, e.g., the type (revolute and / or prismatic) and the number of joints which may be included between any two position-sensing elements (PSEs), where the joints connect the links of a kinematically constrained multi-articulated structure, whereby the defining parameters of the structure may be determined using the spatial placement of the two PSEs and the kinematic constraints of the multi-articulated structure, and where at least the spatial placement of one link is not directly measured. Also provided are preferred placements of PSEs and goniometers on a kinematically constrained multi-articulated structure which will allow determination of the spatial placement of the links, where at least the spatial placement of one link is not directly measured. Revolute joint models of the articulations of the entire human body, as well as preferred PSE and goniometer locations, are provided. An algorithm is provided for determining the joint angles for a finger modeled as a 4-link planar manipulator with one PSE affixed to the fingertip and one PSE affixed to the metacarpus.

An illuminable hand-signaling glove preferably includes a body adapted to be positioned at a hand region of the user. Such a body may include a glove. The body may further include a wrist band and a plurality of finger bands connected thereto. The device may further include a plurality of light-emitting sources displayed on an exterior surface of the body, and a mechanism may be included for selectively toggling independent ones of the light-emitting sources between illuminated and non-illuminated modes by selectively pivoting one metacarpal of the user hand region along a plurality of positions defined within the body while maintaining remaining metacarpals of the user hand region at a static position. Such a selectively toggling mechanism preferably includes a manually actuated user interface attached to the exterior surface of the body.

A device (10) for stressing and training the joints and muscles of the hand, wrist and forearm, usable by an individual in order to develop each single muscular group involved in the movement of each finger of the hand, comprising a horizontal support plane or base (11) to which a vertical column (16) is associated and means suitable for allowing the movement of one or more fingers (15) of the hand (14) either at the same time or in an alternate way and according to a plane both horizontal and vertical against a resistance, in which a support element or block (12) for the metacarpus placed onto said plane (11) is provided.

The invention relates to a multidimensional dynamic active variant flapping wing aircraft, which comprises a fuselage, flapping wings, an empennage, an actuation system and a control system. The multidimensional dynamic active variant flapping wing aircraft mainly imitates complex deformation of pinion bones in a flight flapping cycle. The flapping wing variant mechanism in the actuation system includes a wing skin, a humerus strut, a radius strut, an ulna strut, a metacarpus strut, a variant steering engine, a variant pull rod, and hinges between the struts. The variant mechanism and a flapping wing up-and-down flapping mechanism run synchronously under the control of control system program. When the flapping wings flap downward, the flapping wing front edge skeletons are in a flat unfolding state, the flapping wing area is increased, and the lift force is increased. When the flapping wings flap upward, the flapping wing front edge skeletons are in a multi-fold and spanwise contraction distortion state, the flapping wing area is decreased, and the damping force is reduced. In every flapping cycle, dynamic variant flapping of the flapping wings is realized, thereby realizing high efficiency flight imitating big birds.

A hemi-arthroplasty implant (11) joint replacement for the base of the first metacarpal of the CMC joint is created which can effectively restore and reestablish functional joint mechanics. The implant (11) has a unique head section (13) creating a particular interrelation between a spherical head articular surface (19), that is received in a surgically prepared cavity in the trapezium, wherein a supporting neck (21) in a re-entrant region joins the head to a flat, generally oblong collar (15).

The invention discloses a tendon type under-driving self-adaptation multi-finger device, and belongs to the technical field of anthropomorphic robot. According to the tendon type under-driving self-adaptation multi-fingers device, a forefinger (2), a middle finger (3) and a ring finger (4) are the same in driving mechanisms, and different in sizes. A driving principle of a thumb (1) and principles of other fingers are the same, and a mechanism which can imitate movement of the thumb of a human hand. Tendons (37) are fixed on the tail finger knuckles of the fingers and are guided direction through pulley wheels (32) on the finger knuckles. A left torsion spring and a right torsion spring are installed on each finger knuckle. One ends of the fingers are fixedly connected on a metacarpus (6) which is provided with a tendon groove and a leading pulley wheel (7), and the tendons are guided into a driving unit of an arm. A rubber sheet (5) is installed on each finger knuckle. According to the tendon type under-driving self-adaptation multi-fingers device, number of driving devices is small, each finger only needs one motor to drive, structure is simple, control difficulty is low, and self-adaptation enveloping capturing for objects can be achieved.

The invention discloses a health-care vibration buffering sole. The health-care vibration buffering sole comprises a sole body and an insole body covering the sole body, wherein a metacarpus air sac and a heel air sac are arranged in the sole body, and metacarpus springs and a heel spring are respectively arranged in sac cavities of the metacarpus air sac and the heel air sac; the metacarpus air sac and the heel air sac are communicated through an air sac communicating pipe, a communicating pipe expanding cavity is connected in series to the air sac communicating pipe, and a slidable sliding plug is arranged in the communicating pipe expanding cavity; the tops of the metacarpus air sac and the heel air sac are in contact with the back of the insole body, and metacarpus salient points and heel salient points are arranged on the insole body; the ratio of the taper of truncated cones at both ends of the sliding plug to that of a concave cone surface in the communicating pipe expanding cavity ranges from 1:1 to 3:1, and a vent groove is formed in the cylinder surface of the sliding plug in the axial direction. Through the use of the health-care vibration buffering sole disclosed by the invention, not only dynamic massage can be realized for feet following walking, but also the health-care vibration buffering sole has the effects of vibration absorption and vibration buffering, and the health-care vibration buffering sole is particularly suitable for old people and staff who have a large amount of exercise to wear.

The invention discloses a pusher underactuated finger rehabilitation training device which comprises a rehabilitation training mechanism I, a rehabilitation training mechanism II and a rehabilitationtraining mechanism III, wherein the rehabilitation training mechanism I aims to thumbs; the rehabilitation training mechanism II aims to middle fingers and forefingers; the rehabilitation training mechanism III aims to ring fingers and little fingers; each set of the rehabilitation training mechanism comprises a metacarpal support mechanism, a training mechanism and a driving mechanism; the metacarpal support mechanism of the rehabilitation training mechanism I is a support plate I; the metacarpal support mechanism of the rehabilitation training mechanism II is a support plate II; the metacarpal support mechanism of the rehabilitation training mechanism III is a support plate III; the support III and the support plate II are connected through a hinge; tail ends of the support plate I and the support plate II are connected through a four-freedom-degree passive joint; and middle parts of the support plate I and the support plate II through a thenar fitting plate. By adopting the device,weak finger actions of a patient suffering from hand hemiplegia can be acquired, intensions of the patient can be recognized, and the patient can be driven to carry out active rehabilitation trainingon the basis.

The invention discloses a rigid and flexible combined humanoid five-finger mechanical gripper. The mechanical gripper comprises bionic finger joints, rigid wire drive joints and a bionic palm. Each bionic finger joint comprises a flexible finger far joint, a conformal airbag, a pressurization airbag, a flexible finger middle joint and a middle joint rigid phalanx. Each rigid wire drive joint comprises a bolt shaft, a reset spring, a steel wire role, a cable winding disc, a near joint rigid phalanx and a middle joint rigid phalanx. The bionic palm comprises a derive design metacarpal bone and areplaceable hard outer palm face. According to the rigid and flexible combined humanoid five-finger mechanical gripper, the mechanism integration degree is extremely high, through the adoption of therigid and flexible combined structure features, the technical features that soft machines are held stably by hand and the locating precision of a rigid mechanical hand is high are used in combination, objects in uncertain shapes can be stably grabbed and held, most postures of human palms can be simulated, fidelity, flexibility and autonomy are high, the mechanical gripper is suitable for multiple occasions, and people can be helped to complete work the same as human hands accurately and finely.

The invention provides a two-hand-tracking type multi-degree-of-freedom soft-body finger rehabilitation robot. The robot comprises a normal hand flexible exoskeleton glove, a recovery hand flexible exoskeleton glove, a control system, a driving module, a motion sensing unit and bowden cables. Three-finger control and driving are adopted; the motion sensing unit comprises a plurality of sets of flexible angle sensors distributed on the normal hand flexible exoskeleton glove and on the recovery hand flexible exoskeleton glove, and electromyographic signal sensors on corresponding arms; the metacarpus and the proximal phalanx of each finger of the recovery hand flexible exoskeleton glove are provided with motor drivers; the motor drivers are connected with the joint ends or fingertip ends ofthe recovery hand flexible exoskeleton glove through the bowden cables. The invention further comprises a use method of the robot. By means of the two-hand-tracking type rehabilitation design type flexible exoskeleton gloves of the three-finger structure, the symmetry contact of a normal hand and a recovery hand is built, the motor drivers on the glove can also be used for controlling multiple joints of each finger, six degrees of freedom can be controlled, and the cost is reduced while the functionality and the comfort are improved.

The present application discloses a hand model generation method, device, terminal equipment, and hand motion capture method system. The hand model generation method comprises: establishing a three-dimensional coordinate system, and projecting a preset hand model onto the plane formed by the first axis and the second axis in the three-dimensional coordinate system to obtain the initial hand model;enabling the plane where the palm of the current user is located to be overlapped with the plane formed by the first axis and the second axis in the three-dimensional coordinate system, and enablingall the fingers of the user to be initially oriented toward the first axis; according to the received hand movement data of the current user and the initial hand model, calculating the current user'smetacarpal expansion and finger knuckle length to generate a middle hand model; determining a knuckle rotation center of each finger knuckle of the middle hand model; and generating the final hand model according to the metacarpal expansion range, the length of the finger knuckles, and the knuckle rotation center of each finger knuckle.

Anthropomorphic robotic hand comprising a palm and a metacarpus configured to rotate with respect to said palm around an axis of rotation; four fingers substantially aligned and constrained to said palm and a finger opposable to them, each one of said aligned fingers comprising at least a proximal phalanx, a middle phalanx and a distal phalanx, and said opposable finger comprising a proximal phalanx and a distal phalanx, the proximal phalanges of each one of said aligned fingers being hinged to said palm in respective axes of rotation and the proximal phalanx of said opposable finger being hinged to said metacarpus in a respective axis of rotation; a motor; a plurality of bevel gear differential stages which transmit motion from said motor to said aligned fingers and to said opposable finger.

A set of ergonomic handgrips and arm pads make the use of crutches or other walking assist devices more comfortable and less likely to cause repetitive stress injuries. A metacarpal protrusion of the each handgrip is angled outward at about 5 to 25 degrees from front to back when installed to place the user's wrists at a more ergonomic angle (approximately 15 degrees inward rotation). The metacarpal protrusion produces a substantially flat surface with a downward slope. Each handgrip spreads the load out over the hand of the user eliminating pressure. The handgrips can be fitted on crutches, a walker, a cane, or another walking assist device. The arm pad has a pair of protrusions that produce a recess on the side facing away from a user's chest which engages a user's arm and keeps the crutch top positioned correctly while the crutch is in use by the user.

A hand grip sport strap that can be used for weight lifting, strength training, baseball, golf, tennis, along with other applications that the hands are used to grip a bar or handle up to, but not limited to two inches in diameter.During the application being used, the hand grip sport strap will relieve the stress in your hands and arms so that more repetitions can be done. In baseball, golf and tennis it will increase bat, club and racket speed with less hand fatigue and more control.The “V” area that will come in contact with the object being gripped is the key to this invention and its functions. The “V” area allows the user to use all of the fingers for adjustment of tightness, looseness, and overall comfort support and control of the object being grabbed.The hand grip sport strap will allow anyone using this invention unrestricted use of the hands when the user is not gripping something. The strap material only goes on the back of the hand in between the metacarpal joint (wrist joint) and knuckle of either hand. The strap material only goes 180° plus or minus around. The back of either hand. The invention fits loosely around the users wrist area when not being used. The invention is not in the way of anything when not being used.

The invention relates to an internal fixation device for proximal humeral fractures. The internal fixation device comprises a rod body and a metacarpus body arranged at the end part of the rod body, wherein the rod body and the metacarpus body form an angle of 30 to 45 degrees, branches distributed at intervals are arranged at the front part of the metacarpus body, the front end of each branch is vertically or obliquely and upwardly provided with a fixing stab, relative to the surface of the metacarpus body, for puncturing into the fracture surface of a residual humeral head. The internal fixation device provided by the invention has a simple structure and is convenient to use, and the rod body can be embedded into the bone marrow cavity of the humerus firmly through fillets at periphery, and is fixed with a broken humeral head through the fixing stabs on the metacarpus body and a tail end locking bolt. Compared with the traditional external steel plate fixing manner, more fastness and reliability are achieved, and sclerotin is reserved.

A batting aid to be worn on a thumb of a distal hand of a baseball player while gripping a handle of a baseball bat. The batting aid includes a thumb ring to secure the batting aid to the thumb, and a cushioning saddle integrated with the thumb ring. The saddle has a crest portion configured to engage a portion of the index finger of the distal hand, also having at least one resiliently deformable flap configured to extend substantially along a middle portion of the metacarpal bone of the index finger. The batting aid minimizes the transmission of vibration and impact from the bat hitting a ball, thereby reducing pain and injury. The batting aid conforms to the bat handle and improves a player's grip on the bat. Because the resiliently deformable flap is self-aligning on the player's hand, the player can more easily concentrate on hitting pitched balls.

To provide an articular prosthesis (10) for metacarpus-phalangeal or interphalangeal use, by which a treatment for implanting a prosthesis is rapidly and conveniently performed. The articular prosthesis (10) comprises a first shank (12) to be associated to a proximal bone and a second shank (14) to be associated to a distal bone, said two shanks (12, 14) being connected to a half part (13, 15) of an articulated joint respectively, the two half parts (13, 15) being hinged to each other, at least one among the first shank (12) and second shank (14) comprising an expansion insert (22) and expansion means (59) reversibly expanding said insert (22), said expansion means (59) reversibly expanding the insert (22), the expansion means (59) being removably connected to a half part of the articulated joint (16).

The invention discloses an intelligent garage access control system, which comprises a metacarpus texture recognition module, a metacarpus texture comparison module, a handwriting recognition module, a handwriting comparison module, an electric control lock and an alarm module, wherein the output end of the metacarpus texture recognition module is connected with the input end of the metacarpus texture comparison module; the output end of the metacarpus texture comparison module is connected with the electric control lock and the handwriting recognition module respectively; the output end of the handwriting comparison module is connected with the electric control lock and the alarm module respectively; the metacarpus texture recognition module comprises a metacarpus texture sensor and a metacarpus texture recognizer; and the handwriting recognition module comprises a handwriting sensor and a handwriting recognizer. The intelligent garage access control system has a simple structure, high safety coefficient and long service life.

A method for suspension of the CMC joint that minimizes patient irritation / discomfort and damage to the surrounding tissue. Specifically, the method is a method for suspending a first metacarpal in relative position to a second metacarpal. The method includes the steps of: (i) drilling a hole through the first metacarpal; (ii) inserting a drill guide through the hole in the first metacarpal; (iii) advancing the drill guide to a surface of the second metacarpal, and drilling a hole in the second metacarpal; (iv) inserting an anchor into the hole formed in the second metacarpal, wherein the anchor is attached to suture; (v) deploying the anchor within the second metacarpal; (vi) tensioning the suture attached to the anchor; and (vii) fixing the position of the first metacarpal relative to the second metacarpal using the suture.

In order to find a simple and effective treatment method for the metacarpal and phalanx fractures of the hand, especially the open fractures near the joints and combined with local trauma and contamination, the present invention designs a miniature metacarpal and phalanx external fixation bracket, which includes two clamping blocks, namely clamping Block 1 and clamping block 2, the two clamping blocks are connected by a connecting rod; the clamping block 2 is provided with a through hole, and one end of the connecting rod extends into the clamping block 1, and the vertical direction of the through hole of the clamping block 2 A screw hole is provided, and the screw hole communicates the through hole with the outside of clamping block 2, and a compression screw is screwed into the screw hole to fix the connecting rod. By fixing the holding force against the bone, the mechanical reset and strong fixation force of the external connecting rod is transmitted to the bone in the body, so that it can be moved or fixed according to the needs of fracture or joint reset. It has the characteristics of small trauma, stable and reliable fixation.

The present invention has a palmar portion with only one large recess of substantial sixe to enable skin contact with the skin exposed by the one opening. The one large opening is positioned along the glove palmar portion and does not expose any of the wearer's five metacarpophalangeal joints as well as the thumb metacarpal when the glove is worn.

Provided is a safety protection glove for high-altitude operation. The invention provides a pair of safety protection gloves for high-altitude operation, which is compact in structure and improves the safety. The pair of safety protection gloves comprises a mechanical glove, a controller and a locking mechanism, and the mechanical glove is convenient to disassemble and assemble by sequentially connecting finger tips, finger spaces, finger roots and metacarpal bones in pairs and cooperating with human palm actions; the mechanical glove can be made into a clenching action along with bending of a human hand, the finger tip clamping bamboo shoots of the mechanical glove are inserted into the thumb clamping grooves of the mechanical glove to form a locking state, when the human hand stretches horizontally, the travel switch of the mechanical glove triggers the controller, and the controller instructs the electromagnetic relays in the finger tip clamping bamboo shoots of the mechanical glove to act, retract the finger tip clamping bamboo shoots and release the locking and fixing state. By arranging the connection mode of the finger tip clamping bamboo shoot and the thumb clamping groove, when a climbing object is grabbed, the locking reliability is improved, and the safety of an operator is protected. The pair of safety protection gloves is convenient to machine, and the safety of an operator in the bare-handed climbing process is guaranteed.