10 results about "Finger middle" patented technology

An ergonomic hand grip strengthener includes a front operation handle for ergonomic placement of an index finger, a middle finger, a ring finger and a pinky finger of the holding hand of the user, a rear operation handle for abutting against a thumb and a palm of the holding hand of the user, and a strength adjustment assembly for adjusting a resistance applied to approaching movement between the front operation handle and the rear operation handle.

The application provides a mechanical hand, which comprises a hand part and a driving part, the hand part comprises a plurality of fingers, each finger comprises a plurality of knuckles, and at least two adjacent knuckles in the plurality of knuckles are connected through a rigid rope to form a rolling contact. At least one finger in the plurality of fingers comprises a distal knuckle, a middle knuckle and a proximal knuckle, the middle knuckle is connected with at least a first cable for controlling the bending of the middle knuckle, the distal knuckle is connected with at least a second cable for controlling the stretching of the distal knuckle and the middle knuckle together, and the proximal knuckle is connected with at least a third cable and a fourth cable. The driving part comprises a plurality of pneumatic muscles, and the first cable, the second cable, the third cable and the fourth cable are connected with at least one of the plurality of pneumatic muscles respectively. Through the above arrangement, the overall mechanical hand is not only compact and simple in structure, small in occupied volume, and low in manufacturing cost.

This invention belongs to the field of robot end effector technology. It discloses an adaptive bionic three-finger gripper, comprising a palm, three fingers, two rotary servos, a connecting rod, three bending servos, and three drive lines. Each finger consists of a finger root, a finger root joint, a finger middle joint, and a finger tip joint, hinged sequentially. One finger root is fixed to the palm via the connecting rod, while the other two finger roots are independently driven by two rotary servos to change finger orientation. The bending of each finger is achieved by the corresponding bending servo pulling the finger tip joint via a servo disc and drive lines, forming a tendon-like driven bending. This invention achieves adaptive adjustment of the three-finger layout using only two rotary servos, with a simple drive structure and low control complexity. Simultaneously, each finger joint passively follows the bending motion, resulting in a smooth and conforming gripping action that can adapt to irregular object contours, significantly improving gripping stability and adaptability.

The utility model relates to the field of medical health care equipment, in particular to an auxiliary glove for improving hand movement dysfunction caused by idiopathic tremor, which comprises a glove body, a plurality of first elastic pieces arranged on the back of the glove body and a plurality of second elastic pieces arranged on the back of the glove body. One end of the first elastic piece is connected to the area, corresponding to the middle lower portion of the finger, of the fingerstall part, and the other end of the first elastic piece is connected to the position, corresponding to the hand back, of the glove body. According to the utility model, the connection mode of the first elastic piece is changed, so that the existing problems are effectively solved.

The application discloses a dexterous hand finger joint magnetorheological damping passive reset mechanism and belongs to the technical field of robots. The dexterous hand finger joint magnetorheological damping passive reset mechanism comprises a finger posterior segment, the front surface of the finger posterior segment is provided with a groove, a hole block is rotationally connected in the groove, a cross rod is rotationally connected in the hole block, the ends of the cross rod extend to the outside of the hole block, a finger middle segment is arranged on the outer side wall of the hole block, a rotating opening one is arranged on the inner side wall right side of the finger middle segment, the rotating opening one is rotationally connected with the end outer side wall of the cross rod, and a wedge-shaped gear one is fixedly connected to the inner part of the hole block and located on the outer side wall of the cross rod. The dexterous hand finger joint magnetorheological damping passive reset mechanism can effectively improve the stability and controllability of the finger joint reset process and solves the technical pain points of the large reset impact and the unadjustable buffering effect of the traditional reset mechanism.

One example embodiment is a robotic end effector, comprising: (a) a soft gripper and (b) an electro-hydraulic actuator assembly. The soft gripper comprises: a gripper body comprising a finger connecting portion; and at least two fingers connected to the finger connecting portion. The gripper body further comprises a gripper cavity therein. The finger connecting portion and the at least two fingers define a working space therewithin, the working space comprises an opening between proximal ends of the at least two fingers. Each of the at least two fingers further comprises a finger barb substantially extending into the opening to partially close up the opening. The electro-hydraulic actuator assembly comprises: an actuator that is operatively driven by an electric motor; and a chamber that comprises a chamber variable volume controlled by the actuator. The chamber variable volume is in liquid communication with the gripper cavity to form a closed space filled with a liquid. Other example embodiments are described herein. In certain embodiments, the provided soft grippers and robotic end effectors are compact, powerful and is highly suitable for tasks that require fine gripping motion of small objects with diverse range of sizes, shapes, and textures with high precision, such as drug sorting and dispensation.

A finger covering stylus to be worn on at least one of a thumb and a finger of a user, the finger covering stylus including a main body, and a stylus tip disposed on at least a portion of the main body to removably connect to a touchscreen of an external device, such that the stylus tip provides an input on the touchscreen of the external device in response to contacting the touchscreen.

The invention discloses a finger vein recognition method and device, a storage medium and equipment, and belongs to the field of biological feature recognition. The method comprises the following steps: firstly, carrying out rotation alignment on a finger vein image through a finger center line, obtaining a region of interest, then obtaining an optimal matching region through a sliding window mode based on Gabor binary coding, and finally, carrying out local feature descriptor extraction and matching on the optimal matching region. According to the invention, the finger vein recognition of the local feature point and feature descriptor method is carried out through the finger midline registration and sliding matching strategy, the invalid comparison is greatly reduced, the effective local descriptor is concerned, and the matching efficiency is greatly improved.

The application discloses a dexterous hand, comprising a palm, a four-finger module and a thumb module. The four-finger module comprises four single-finger modules with the same structure, each single-finger module comprising a knuckle mechanical structure, a bending power structure and a side swing power structure; the knuckle mechanical structure comprises a four-finger proximal phalanx, a four-finger middle phalanx and a four-finger distal phalanx connected in turn, and adjacent knuckles are coupled and linked through a pull rod; the bending power structure drives the four-finger proximal phalanx to bend and drives the remaining knuckles to link; the side swing power structure drives the finger to swing through differential motion of two power output ends. The thumb module comprises a thumb mechanical structure, a thumb bending structure embedded in the proximal phalanx, a thumb swing structure and a thumb rotating structure. The application has the advantages of compact structure, accurate transmission and strong composite motion capability, and can simulate complex grasping actions of a human hand.

Systems, devices, and methods for stimulating peripheral nerves in the fingers or hand to treat tremor are described. For example, a wearable ring device for delivering electrical stimulation to sensory nerves in a patient's finger can include an annular ring having a plurality of electrodes and a detachable unit having a power source and a pulse generator.