1018 results about "Hand wrist" 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 wrist joint spasm assessment method and a wrist joint spasm assessment device based on multi-source data fusion. The rotating speed data, the rotating angular speed data and the angle change data of the wrist joint, the pressure change data of the whole palm, the acceleration change data of the palm, the torque change data of the wrist joint and the electromyographic change data of related muscles in the movement process are measured, and scoring is carried out in combination with an expert system. The evaluation of wrist spasm is realized by combining a multiple linear regression algorithm with a differential evolution algorithm; and based on the multi-source data fusion, establishing an evaluation model by using a Bi-LSTM network so as to realize spasm evaluation. The wrist serves as a spasm detection part, and compared with traditional spasm detection equipment, a more convenient data acquisition mode is achieved while the evaluation precision is guaranteed.

A system and method for therapeutic electrical stimulation of a wrist. A flexible band is secured around the wrist. The flexible band supports an electrode carrier, including a set of electrodes, one of which is in physical contact with a dorsal side of the wrist and a second of which is in physical contact with a ventral side of the wrist. A stimulation module is in electrical communication with the electrode carrier and includes signal generation circuitry that generates an electrical stimulation signal as a direct current pulse at a frequency between 10 kHz and 50 kHz. Control circuitry sequentially activates different subsets of electrodes to act as a signal source or a signal sink for the electrical stimulation signal. The electrodes are configured to deliver electrical stimuli to the arm or wrist for exciting a median, radial or ulnar nerve.

A system or method for controlling movement of a robot (600) using actuators may include one or more actuators (1002) of a first type positioned at torso, shoulder, and hip locations of the robot; one or more actuators of a second type (1004), the one or more actuators of the second type being positioned at a wrist position of the robot; one or more actuators (1006) of a third type, the one or more actuators of the third type being positioned at a wrist position of the robot; one or more actuators of a fourth type (1008), the one or more actuators of the fourth type being positioned at the elbow and ankle positions of the robot; one or more actuators (1010) of a fifth type, the one or more actuators of the fifth type being positioned at a torso position and a hip position of the robot; and one or more actuators (1012) of the sixth type, the one or more actuators of the sixth type being positioned at the knee position and the hip position of the robot.

A multimodal wearable band which uses mechanical vibrations to stimulate sensory neurons in the wrist or ankle in order to reduce the severity of tremors, rigidity, involuntary muscle contractions, and bradykinesia caused by neurological movement disorders and to free users from freezing induced by movement disorders. The device uses sensors to provide output used by a processing unit to determine the optimal stimulation pattern for each user and to determine when stimulation is necessary, and then uses one or more vibration motors to accordingly stimulate the user's neurological pathways to lessen the severity of a user's symptoms. The device can also be adapted to integrate with 3rd party devices.

A method of replacing a consumable of a surgical tool includes securing the surgical tool, which includes a drive housing, a shaft extending from the drive housing, an end effector arranged at a distal end of the shaft and including opposing upper and lower jaws, a wrist interposing the shaft and the end effector, and a knife assembly including a knife arranged at the end effector and first and second drive members extending to the drive housing. The method includes uncoupling the end effector from the wrist, moving the end effector distally from the wrist while the wrist remains intact, removing the knife assembly from the end effector, and thereby entirely separating the end effector from proximal portions of the surgical tool, replacing the consumable of the surgical tool, reconnecting the knife assembly to the surgical tool, and re-coupling the end effector to the wrist.

A prosthetic assistive device configured to attach to a distal end of a natural or prosthetic arm or wrist. The device may include a palm portion. A split hook may be coupled to a distal end of the palm portion. The split hook may comprise a first end effector and a second end effector. The prosthetic device may include a third end effector rotatably coupled to the palm portion at a proximal end of the palm portion. The third end effector may rotate about a transverse axis to pinch and unpinch, as well as rotate about a longitudinal axis to adduct and abduct. A rotating member such as a ring may rotate about a plate for adduction / abduction. The prosthetic device may include a drive assembly configured to rotate one or both of the split hook end effectors about two different axes.

The invention relates to the technical field of medical instruments, and provides an integrated wearable soft multi-mode manipulation treatment instrument, which comprises a glove main body, the glove main body is divided into five finger sleeve parts sleeved on fingers, a palm part located at the palm, a hand back part located at the hand back and a wrist part located at the wrist, a connecting disc is arranged on the outer surface of the hand back part, a vibration head is arranged on the side, away from the hand back part, of the connecting disc, and vibration is generated by a micro vibration motor in the connecting disc and transmitted to the vibration head to assist in manipulation treatment. According to the technical scheme, fixed-point or movable massage stimulation can be carried out on areas needing to be focused, meanwhile, palms and fingers can be used for implementing other treatment techniques such as pressing and kneading, the design can be easily matched with all parts of the body, especially the areas such as the perineum and the head and neck which are difficult to treat through traditional equipment, and the treatment effect is good. And the functions of heating and releasing a magnetic field for treatment are matched to form a synergistic effect, and the treatment effect is jointly improved.

A wrist brace, accommodating right and left hands, includes: a casing, pull tab, elastic members, center stay, and thumb stay. The casing includes: first and second thumb sockets, respectively usable for right and left thumbs, positioned symmetrically about the casing's center axis; and first and second elongated pockets, each formed parallel to the center axis, extending between the respective thumb socket and distal end of the casing. A third elongated pocket, centered on the center axis, extends between proximal and distal ends of the casing. The elastic securing members pass through holes on one side of the casing, with respective first ends fixedly secured to the pull tab, and respective second ends fixedly secured to another side of the casing. A center stay occupies the third pocket. A thumb stay is received within either of the first and second elongated pockets for respective use on the right and left hands.

The invention relates to an automated hand, such as a prosthetic hand. In one form, the automated hand may be fluid compatible. In one form, the automated hand may comprise features to reduce the risk of harm to motors and / or other sensitive components of the hand when subject to an impact. In one form, the hand may comprise a wrist joint configured to allow the hand to curl and flex and / or to rotate. In one form, one or more digits of the hand may be individually controlled. In one form the hand may include a thumb rotation locking mechanism. In one form the hand may be provided with removable grip plates. In one form, the hand May be configured for use as a training hand.

The present disclosure relates to the field of artificial limbs for amputees and specifically to a passive compliant wrist unit 210 for upper limb prosthesis. The passive compliant can comprise a plurality of fingers controlled by a compliant four bar mechanism. The arm is capable of extension / flexion, radial / ulnar deviation on application of a force on the snap joint. The limb is also capable of pronation / supination actions. By application of a force on an arm snap joint, the flexible wrist 216 can be adapted to perform extension / flexion, radial / ulnar deviation.

The invention discloses a wrist image fracture recognition detection method and system based on an improved YOLOv8 network, and the method comprises the steps: obtaining a to-be-processed wrist fracture image data set, and carrying out the data preprocessing, and obtaining a wrist fracture image; based on a fast network backbone structure, a bidirectional feature pyramid network structure fused with a global-to-local space aggregation module and a dynamic cross-stage deformable convolutional network module is introduced, and an improved YOLOv8 recognition network model is constructed; and performing image recognition processing on the wrist fracture image based on the improved YOLOv8 recognition network model to obtain a wrist image fracture recognition result. According to the invention, the capture capability and feature extraction efficiency of the wrist fracture features under the complex background can be enhanced, and then the precision of wrist fracture image recognition is improved. The wrist image fracture recognition and detection method and system based on the improved YOLOv8 network can be widely applied to the technical field of image recognition.

The invention provides a rope-driven elbow-forearm rehabilitation device based on a tension spring reset system, the rope-driven elbow-forearm rehabilitation device comprises a flexible driving part, a forearm rotating part and an elbow joint flexion and extension part, and the flexible driving part is composed of a reset tension spring, a driving rope and the like; the forearm rotating part is composed of wrist inner and outer rings, a rotating track assembly and the like. The elbow joint flexion and extension part is composed of an angle adjusting chuck, a passive moving pair assembly and the like. The forearm rotating part is worn on the forearm and the wrist of a subject, and the flexible driving part drives the wrist outer ring to rotate so as to drive the forearm of the subject to rotate forwards and backwards; the elbow joint flexion and extension part is worn on the upper arm of a subject, and the flexible driving part drives the angle adjusting chuck to rotate so as to drive the elbow joint of the subject to complete flexion and extension movement; the forearm rotating part and the elbow joint flexion and extension part are connected through a forearm-elbow connecting piece; the two-degree-of-freedom elbow and forearm rehabilitation training device can realize two-degree-of-freedom rotation movement of the elbow and the forearm, is suitable for postoperative rehabilitation training of a congenital ulna and radius fusion patient, and has the advantages of portability, good flexibility and the like.

The invention discloses a minimally invasive surgical instrument, and belongs to the technical field of medical instruments, the minimally invasive surgical instrument comprises a tail end tool, an operating part, a power transmission part and a connecting part, the connecting part comprises a linear part connected with the tail end tool, a bending part connected with the operating part and a spherical pair mechanism used for connecting the linear part and the bending part; the inner side of the spherical pair mechanism is provided with an inner path for smooth transition of a jaw wire, the spherical pair mechanism is provided with a rotary limiting shaft and a locking assembly, the rotary limiting shaft is configured to enable the bent part to do pitching rotation action relative to the linear part, the locking assembly comprises a locking unit and a control unit, and the locking unit is configured to provide locking force for the spherical pair mechanism. The control unit is a locking wire for connecting the locking unit and the locking operation part, and the locking operation part is reversely interlocked with the spherical pair mechanism. By adjusting the angle between the linear part and the bent part, the wrist of a doctor is located at a comfortable moving position, so that the flexibility of the wrist in the operation process is improved, and the fatigue feeling of the doctor is reduced.

Hand table device for surgeons including a rectangular, rigid platform having elevated edges running along each long side thereof. The elevated edges allow the surgeon and assistant to rest their arms / wrists to prevent fatigue of their arms and shoulders while also providing a solid foundation for the surgeon's arms / wrists during a delicate procedure. The edges further prevent instruments and fluids from exiting the surgery area. The rigid platform may include magnets which, along with secondary metallic articles, permit instruments, medical devices and a patient's body part to be secured or immobilized as needed. The hand table device may be disposable for one-time use only.

The utility model belongs to the technical field of detection, particularly relates to an ethanol derivative detection device, and aims to solve the problems that a test tube is oscillated by shaking a wrist to accelerate mixing of solutions, the next step cannot be prepared in the process, and the wrist of a tester is damaged by long-time shaking, and the ethanol derivative detection device comprises a base, the alcohol lamp is arranged at the top of the base, the reagent bottle is arranged at the top of the base, the supporting frame is fixedly connected to the top of the base, and the test tube rack is fixedly connected to the top of the base. Meanwhile, an oscillating assembly capable of automatically swinging left and right in a reciprocating manner is arranged, so that wrist injury of a tester caused by long-time swinging is avoided, reagent solution mixing is accelerated, two hands are liberated, the tester can prepare for the next operation step, and the testing speed is increased.

The exoskeleton manipulator comprises an exoskeleton main body, the front end of the exoskeleton main body is connected with a finger four-finger part, the rear end of the exoskeleton main body is connected with a finger thumb part and a wrist wearing part, the exoskeleton main body is connected with a thumb metal rod and a four-finger knuckle rod, and a hand back liner is arranged on a palm part on the inner side of the exoskeleton main body; the four-finger part comprises an index finger stall, a middle finger stall, a ring finger stall and a little finger stall which are arranged on the four-finger knuckle rod in a sleeving manner, and the thumb part comprises a thumb stall arranged on the thumb metal rod in a sleeving manner; the wrist wearing part comprises a wide bandage with one end fixed to the exoskeleton body and a wrist guard arranged on the wide bandage. The invention further relates to a wearing method of the exoskeleton mechanical arm, wearing can be rapidly completed only through two steps after assembly is completed, and the problem that the exoskeleton mechanical arm is simple to wear and good in adaptability cannot be achieved at the same time is solved.

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.

A surgical instrument according to an embodiment may include: an end effector including first and second jaw members movable between an open position and a closed position; a wrist joint portion connected to a proximal end of the end effector; and a shaft connected to a proximal end of the wrist joint portion. At least one of the first and second jaw members is rotatably provided about a rotation axis. A diameter D1 of the end effector at a portion where the rotation axis is provided is smaller than a diameter D2 of a central portion in a longitudinal direction of the wrist joint portion and a diameter D3 of a central portion in the longitudinal direction of the shaft.

The invention relates to an inflatable glove combined low-frequency electrical stimulation wrist-hand movement device, which comprises an inflatable glove and at least one group of electrical stimulation parts, the inflatable glove is a finger separating glove which is provided with an opening at one end and can be sleeved on a hand, and each finger part of the inflatable glove is provided with a segmented inflation and deflation structure; the electrical stimulation part is arranged to be a low-frequency electrode device which is adjustable in size and can be arranged on the wrist in a sleeving mode, and the face, facing the arm, of the electrical stimulation part releases low-frequency current in a mode of being attached to the skin. Through the arrangement of the inflatable glove and the electrical stimulation part, the device can be combined with air pressure massage and electrotherapy massage into a whole when in use, so that the hand and wrist of a patient can be better treated, and the treatment effect is improved; in addition, by adjusting the current in the electrical stimulation part, the device can be conveniently adjusted according to different patients and different muscle contraction conditions of the patients during use.

A glove including a wrist region; a palm region extending outwardly from the wrist region; a plurality of digit regions extending outwardly from the palm region, wherein each digit region of the plurality of digit regions has a longitudinal axis extending along the digit region from the tip of the digit region to the palm region; an interior cavity bounded and defined by the wrist region, the palm region, and the plurality of digit regions, wherein the interior cavity is accessible via an opening defined by the wrist region. A crotch area is defined between each pair of adjacent digit regions. An exterior surface of at least one crotch area is textured, particularly through micro-etching of the exterior surface of the crotch area.

A robotic system which includes a fluid controller, an arm portion, and a soft end effector apparatus coupled with the fluid controller and the arm portion. The soft end effector apparatus includes a base constructed and arranged to mount to the arm portion, a set of wrist assemblies coupled with the base, and a set of finger assemblies coupled with the set of wrist assemblies. Each wrist assembly of the set of wrist assemblies (i) couples with a respective finger assembly and (ii) provides movement to that respective finger assembly relative to the base during actuation of that wrist assembly and during independent actuation of that respective finger assembly in response to control from the fluid controller. Along these lines, the fluid controller may individually provide pressurized fluid to each wrist assembly and each finger assembly when controlling interaction between the soft end effector apparatus and an external object.

A trisection training rod is an auxiliary training instrument for trisection shooting, is a training instrument researched and developed according to the necessary conditions of accurate trisection shooting, can help an athlete to improve the sensing ability and the control ability of fingers and wrists on the gravity center of an object moving on the hands, and meanwhile increases the strength of the fingers, the wrists and the arms. Through the training of the three-point ball training rod, the hit rate of the three-point ball can be greatly improved. The whole body is in a short and thick rod shape, and the whole surface is made of damping materials. The device is characterized by being adjustable in weight, adjustable in length and adjustable in diameter of a middle hand grabbing part.

The invention provides a plastic upper limb enhancing and fixing splint, and belongs to the technical field of medical instruments. Comprising a clamping plate body, a manual breaking opening is formed in the bottom of the clamping plate body, the two ends of the clamping plate body are a wrist end and an elbow end respectively, the diameter of the elbow end is larger than that of the wrist end, the elbow end is sleeved with a mounting sleeve frame of an annular structure, and the cross section of the mounting sleeve frame is of a convex structure. By arranging the extrusion massage piece, when an expansion air bag is used for the first time, medical personnel need to manually press a pressurization air bag to inflate the expansion air bag, in the inflation process, one-way valves on two air inlet pipes need to be manually opened, and one-way valves on an air outlet pipe need to be manually closed, and at the moment, the medical personnel need to manually press the pressurization air bag to inflate the expansion air bag; the pressurizing air bag can inflate the expansion air bag when the medical staff manually presses the extrusion elastic piece, and the expansion air bag is inflated to the comfortable expansion degree of the patient.

The invention relates to the technical field of medical instruments, in particular to a compression device for a hemostatic ball, which comprises a fixing block covering a puncture point on a wrist radial artery, a hemostatic component, a compression component, a compression component and a compression component, and is characterized in that the edges of two sides of the fixing block are provided with fixing bands for being fixed on the wrist; the upper top cover and the lower closing block are arranged in an inner cavity of a fixing block, movable gaps are reserved in the upper portion and the lower portion of the upper top cover, and a plurality of evenly-distributed hemostasis balls are arranged in the movable gaps between the upper top cover and the lower closing block and used for stopping bleeding of a puncture point. The operating mechanism is arranged on the fixing block and used for tightening the hemostasis assembly and the fixing band at the puncture point. A collaborative operation mode is adopted, tightening of the fixing band and compression of the hemostasis assembly are synchronously performed at the position of a wrist radial artery puncture point, the effects of positioning the puncture point and fixing the device are achieved, compression hemostasis is performed according to the specific condition of a patient, the fixing band does not need to be repeatedly operated, and the influence of external force extrusion is reduced.

A wrist apparatus for a prosthetic hand comprises a base and a hand mount to which a prosthetic hand is mountable. The hand mount is attached to the base and is movable relative to the base between, and releasably retainable in, at least two different positions corresponding to at least two different hand flexion configurations.

The invention discloses a full-low-pair compact-structure two-rotation parallel-connection type anthropomorphic wrist, and relates to the technical field of parallel-connection type anthropomorphic joints, the full-low-pair compact-structure two-rotation parallel-connection type anthropomorphic wrist comprises an arm support assembly, two active branches, two passive branches and a palm moving platform assembly, the two driving branches are arranged on the two sides of the arm support assembly respectively, the driven branches are arranged at the end of the arm support assembly, the palm moving platform assembly is used for achieving the motion function of simulating the human wrist, and one end of the arm support assembly is connected with the palm moving platform assembly through the driving branches on the two sides; the other end of the arm support assembly is connected with the palm platform assembly through a passive branch. The mechanical arm has the advantages of being simple in structure, convenient to machine and maintain, small in abrasion, high in precision and the like, and the functions of wrist bending, wrist stretching, wrist adduction and wrist abduction movement of the wrist can be achieved.

The claimed group of inventions relates to a field of anatomical engineering, and it relates to a mechanical finger and an actuator therefor, which may be used in imitators and prostheses of upper limbs. The mechanical finger is a structural element that performs a gripping function, consists of movable phalanxes, elements for modifying their position relative to each other, and a driving rope that is connected to a lead nut that is, in turn, intended to interact with an electromechanical actuator that transmits a force to the mechanical finger. According to the invention, the rope is fixed on the lead nut and divided into two portions which are arranged symmetrically relative to a sagittal plane of the proximal phalanx and laid on the guides. Therewith, cavities are provided in locations of the rope which are configured to receive loops of the rope, and a length of each of them equals to a travel length of the lead nut. The actuator is a power module that is aimed to drive and to control a movement of the mechanical finger. It consists of a motor reducer having a front shaft with a lead screw mounted thereon, the lead screw is configured to be coupled to the lead nut, and an encoder that is configured to enable a connection to the contact board of the artificial wrist, thereby powering the motor reducer and transmitting pulses. The actuator and the mechanical finger are individual modules of the artificial wrist which together form a single module.

Systems and methods for assessing a neurological condition of a user includes detectors positioned at a surface of a skin of a wrist of a hand of the user. The detectors include a first pair of detectors configured to output a first output and a second pair of detectors configured to output a second output based on detected electrical potentials. Circuitry is configured to reduce amplitudes indicative of frequency components characteristic of ambient noise from the first output and the second output, generate data values based upon the first output and the second output, extract features from the data values including at least a feature based on relative amplitudes between the first output and the second output, and analyze the extracted features to assess the neurological condition of the user.