40 results about "Forearm muscle" patented technology

Apparatus for exercising the forearm muscles responsible for movement of the hand at the wrist. The apparatus comprises two rigid rings adjoined by, and allowed to rotate about, the axis of a central, cylindrical variable resistance mechanism. The rigid rings each support a handgrip that is allowed to rotate about the inner circumference of each ring at variable resistance settings set with a peripheral resistance mechanism including an externally threaded terminal end of each handgrip, a knurled sleeve with internal threads at one end and external threads at the other. The knurled sleeve can be rotated about the axis of each handgrip, through internal threads of the inner ring, into the inner surface of the outer ring thereby creating a desired frictional resistance. The desired resistance can be preset and returned to through the incorporation of click-stops.

The invention discloses a parameter acquisition evaluating system of upper limb movement, comprising a motion tracking device, a data acquisition circuit and a comprehensive processing device, wherein the motion tracking device and the data acquisition circuit are connected with a tested person and output motion parameters obtained from the tested person to the comprehensive processing device; the comprehensive processing device is respectively connected with the motion tracking device and the data acquisition circuit. The invention also discloses an acquisition evaluating method using the system, and the method comprises the following steps that the motion locus, the motion speed, the motion accelerated speed, the joint range of motion of upper limbs of the tested person are recorded in time by an infrared camera in the motion tracking device; the electromyographic signal change of the forearm muscle is collected by measuring electrodes and a myoelectricity amplified filter circuit; the opposite pinch strength magnitude of a thumb and an index finger is collected through a thin film pressure sensor; the recorded motion paramours are transmitted to the comprehensive processing device for analysis and processing; an average person norm is established; the measuring values of the tested person are compared with the average person norm, and the deviation of the upper limb motion of a patient is judged.

A glove with enhanced gripping capabilities that makes maintaining a grip for a user, less taxing and less fatiguing for the user's hand and forearm muscles. More particularly, a grip-enhancing glove, and method for maintaining a grip, which enables a user to maintain a prolonged grip without incurring undesirable effects.

An exercise grip device includes a jaw member which is of a sufficient width to permit grasping thereabout with one's hand, wherein the jaw member includes a spring aspect which is preformed to an open position to permit receiving a weightlifting bar and is compressible to a closed position enabling engagement of the jaw member with the weightlifting bar in a manner to prevent sliding movement therebetween and while compressed exerts a force on one's hand and forearm muscles. A method includes weightlifting using the exercise grip device.

The invention discloses a humanoid upper limb based on pneumatic muscle. The pneumatic muscle simulates human muscle for driving a shoulder joint, an elbow joint and a wrist joint to move, and the function of completely simulating the motion of the upper limb of a person is achieved. The humanoid upper limb is composed of a rib, a vertebra, a shoulder blade, a humerus, a fibula, an ulna, a spherical hinge, the pneumatic muscle and a pneumatic muscle fixing plate; the pneumatic muscle of a humanoid upper limb girdle muscle drives the shoulder joint to retract and stretch, bend and extend, inwards rotate and outwards rotate; arm muscle drives the elbow joint to bend and extend, inwards rotate and outwards rotate, and meanwhile the arm muscle and the upper limb girdle muscle cooperatively drive the shoulder joint to inwards retract, outwards stretch, inwards rotate and outwards rotate; and forearm muscle drives the wrist joint to bend and extend and retract and stretch and drives the elbow joint to bend and extend, inwards rotate and outwards rotate. The humanoid upper limb is driven by the pneumatic muscle, has the beneficial effects of being compact in structure, clean and good in anti-explosion performance, and can be used for teaching demonstration, medicinal diagnosis and scientific research.

A functional exercise glove includes a dorsal-side layer having in-plane resistance to stretch in the longitudinal direction of the glove that is greater than its in-plane resistance to stretch transverse to the longitudinal direction. At least one fingertip member transfers an extension/flexion force from a user's finger to the dorsal-side layer upon flexion of the finger. The glove is configured to react the extension/flexion force from the dorsal-side layer into at least one of the heel of the user's hand or the user's wrist. The dorsal-side layer resists extension from flexion of the fingers thereby working finger, hand, wrist, forearm muscles, tendons, ligaments, bones, and nerves specific to natural movement patterns. The exercise glove can be used during a job function, regular activity, and while playing a sport like golf, tennis, etc.

The invention provides a method for myoelectrically controlling an artificial hand simulation system of a virtual robot. The method comprises the following steps: (1) collecting data of a right front arm of a tester; (2) adopting an electrode clung to a skin layer above related forearm muscle for collecting a myoelectricity signal; (3) performing signal pretreatment of rectifying, amplifying and filtering on the myoelectricity signal; (4) performing feature extraction on the myoelectricity signal and extracting a stable feature vector of the myoelectricity signal; (5) cutting the collected stable feature vector into a training set and a test set, utilizing the training set to train the selected classifier and then classifying the signals of the test set; (6) transferring the signal data after the signal classifying process to the after-treatment link; (7) after the after-treatment for the signal, namely, controlling a command signal and sending the command signal to a virtual hand simulation system; (8) assuming a visual feedback function by the virtual hand in the artificial hand simulation system of the robot and feeding the real-time state of the virtual hand to the brain; (9) judging if the hand action is an assumed action by a user through visual feedback.

A handle for a mixer faucet is used to facilitate operating the faucet more easily by using primarily the wrist and forearm muscles. The handle comprises a gripping element (202) and a connector (204) to connect the handle to a mechanism lever of the mixer faucet. The gripping element comprises two sections, both of which lie along an axis substantially perpendicular to the mechanism lever's operating axes. Furthermore, each of the sections is located on an opposite side of the mechanism lever's operating axis. To operate the faucet, the operator's hand holding or touching the handle is aligned in such a way that the longitudinal axis of the hand is substantially continual with the longitudinal axis of the mechanism lever. This allows operating the mixer faucet by using primarily gentle motor skill-type movements.

A therapeutic exercise device includes an elongated, hollow tube having a sleeve slidably and rotatably mounted thereon. The sleeve is held on the tube by a pair of opposing retainers, each having a rounded end cap attached thereto. Either cap is removable to expose an interior chamber for receiving a desired number of weighted cylinders that vary the overall weight of the tube. Accordingly, a user loads the chamber with a desired number of weighted cylinders and grasps the tube with one hand. The sleeve is grasped and reciprocally rotated with the other hand to exert the hand, wrist and forearm muscles.

An exercise grip device includes a jaw member which is of a sufficient width to permit grasping thereabout with one's hand, wherein the jaw member includes a spring aspect which is preformed to an open position to permit receiving a bar and is compressible to a closed position enabling engagement of the jaw member with the bar in a manner to prevent sliding movement therebetween and while compressed exerts a force on one's hand and forearm muscles.

The present disclosure provides a therapeutic hand and forearm strengthening device which permits a user to exercise and strengthen specifically isolated hand and forearm muscles, tendons and ligaments in a number of different ways depending on the specific exercise and device configuration chosen by the user. Another object of the present disclosure also provides methods of therapeutically treating a user's hand and forearm using a device according to the present disclosure.

The invention discloses an artificial limb control method based on multiple sensor fusion, and relates to the technical field of artificial limbs. The artificial limb control method includes: by the aid of a first sensor, collecting electromyographic signals of spontaneous contraction of forearm muscles of an amputee; by the aid of the first sensor, detecting information of a second sensor and judging a wrist direction of an artificial limb of the amputee; triggering a camera device through muscular contraction after a wrist of the artificial limb is adjusted to a suitable grabbing posture, and shooting a grabbed object with the camera device; according to the grabbed objected shot by the camera device, determining a grabbing mode of the artificial limb by the aid of a third sensor, and controlling grabbing strength, for the object, of the artificial limb according to muscular contraction proportion of the amputee; ungrabbing the object through the muscular contraction by the amputee.The artificial limb control method based on multiple sensor fusion has the advantages that the amputee is enabled to control the artificial limb spontaneously and more naturally, no training is required, better experience can be obtained, and the artificial limb is more convenient to use.

A dumbbell with an arched handle includes two weighted elements positioned on either side of a handle having an arched center portion. The shape of the arch facilitates a complete range of motion and training of the biceps, triceps and forearm muscles through a full rotation of the hand utilizing pronation and supination exercises.

A wrist exerciser with a handle and multiple hold positions includes a first exercise ball body and a handle. The first exercise ball body has a first opening, a rotor, and a first hold position for driving the rotor to rotate. The first opening is disposed at a side of the first exercise ball body. The rotor is disposed inside the first exercise ball body. The handle is connected to the other side of the first exercise ball body where the first opening is disposed. The handle is coaxially corresponding to the first opening, and has a second hold position for driving the rotor to rotate, so as to provide multiple hold modes for a user to carry out wrist exercise modes of different postures, thereby increasing interests and enhancing comprehensiveness of forearm muscle exercises.

A multi-degree-of-freedom artificial hand control device based on a multiple force sensing resistance sensor relates to a multi-degree-of-freedom artificial hand control device, which is provided for solving the shortcomings of the muscle surface electrical signal artificial hand control device of weak interference resistance, poor biomimetic performance and few control modes. The multi-degree-of-freedom artificial hand control device is composed of an information collection module, a signal analysis and processing module, a DSP-based artificial hand control module, etc; wherein, the information module is composed of a force sensing resistance sensor and a circuit switching processing module; the force sensing resistance sensor is installed at the inner side of an artificial limb tube, which coincides with the shape of the forearm, and fully contacts the forearm muscle; the signal output end of the force sensing resistance sensor is connected with the signal input end of the circuit switching processing module; the output end of the information collection module is connected with the signal input end of the signal analysis and processing module; the digital signal output end of the signal analysis and processing module is connected with the digital signal input end of the DSP-based artificial hand control module. The multi-degree-of-freedom artificial hand control device has the advantages of high interference resistance, good biomimetic performance, many control modes and high sensitivity.

The invention discloses a surface electrical stimulation system for suppressing Parkinson resting tremor based on a skin reflex principle, which comprises a myoelectricity signal acquisition module, a myoelectricity signal pre-treatment module, a signal analysis and control module, a myoelectricity stimulator module and a stimulation electrode module connected in sequence, wherein the myoelectricity signal acquisition module comprises a recording electrode formed by a positive electrode sheet and a negative electrode sheet and a reference electrode. Electrical signals of the muscle are monitored in real time through the electrode sheets attaching to the skin surface of forearm muscle, the acquired myoelectricity signals are computed and analyzed via the signal analysis and control module, and frequency feature values of the myoelectricity signals are detected. Once the detected frequency feature values exceed preset frequency feature values with Parkinson resting tremor, the system drives the myoelectricity stimulator module to carry out electrical stimulation therapy on a patient timely, thereby achieving the purpose of suppressing upper limb tremor. The system of the invention is a portable wearable device, automation and intelligence can be realized during a rehabilitation process, the operation is simple, control is easy, and the operation is safe and reliable.

The invention relates to the field of fitness equipment, in particular to multifunctional physical fitness equipment. The equipment comprises a base, and two stand columns are vertically arranged on the upper surface of one end of the base in a bilateral symmetry mode; a cross beam is arranged between the tops of the two stand columns, and a pull-up rod is arranged on the outer side of the cross beam. A plurality of fixing through holes are evenly distributed in the surfaces of the two stand columns in the height direction of the two stand columns, brackets are movably arranged on the two stand columns, and barbell rods are arranged on the brackets. The two stand columns are vertically arranged on the upper surface of one end of the base in a bilateral symmetry mode, a cross beam is arranged between the tops of the two stand columns, and pull-up rods are arranged on the outer side of the cross beam, so pull-up exercise can be carried out, latissimus dorsi and biceps brachii are exercised, and a training effect on many small muscle groups and forearm muscle groups around shoulder blades is also achieved. Barbell removing exercise can be conducted by placing barbell pieces at the twoends of the barbell rod, then upper limb muscles and waist and abdomen muscles are exercised, and the barbell is suitable for wide popularization.

The invention relates to a multi-triggering-mode intelligent electrical stimulation hand trainer and a method. The trainer comprises an electromyographic signal collecting module, a curvature collecting module, a touch screen module, a host control module, an electric pulse generation module and the like. The method includes the steps of the electromyographic triggering mode, wherein electric signals generated by uninjured side forearm muscles of a patient according to the hand grabbing actions are collected by the electromyographic signal collecting module and transmitted to the host controlmodule; the curvature triggering mode, wherein the curvature information of the uninjured side hand grabbing actions of the patient is collected by the curvature collecting module in real time and transmitted to the host control module; the touch screen triggering mode, wherein different muscle groups of affected side forearm of the patient are selected according to the demands of the patient to be stimulated, signals are transmitted to the host control module, and the electric pulse generation module is triggered to generate different electric pulses to stimulate the muscle groups of musculusflexor digitorum sublimes, musculi flexor pollicis longus, extensor digitorum muscles and extensor pollicis brevis muscles of the affected side forearm of the patient after the real-time treatment ofthe host control module so that the grabbing actions the same as those of an uninjured side hand can be completed by an affected side hand of the patient.

Methods and apparatus for exercising muscles are disclosed, including a system that enables a person to perform an exercise that directly targets the biceps and minimizes activation of the forearm muscles. Embodiments of the invention also afford a user with the ability to utilize a single dumbbell in conjunction with a platform of the invention to target both biceps simultaneously. An exercise band may also be attached to a platform of the invention while performing an exercise which may then be performed with or without an inserted dumbbell. Additionally, embodiments of the invention enable a user to utilize an attachment mechanism in conjunction with a platform of the invention to utilize kettlebells, cable machines, resistance/exercise bands or other structures to provide a means of resistance while performing an exercise using the invention.

An upgradable weighted training device to help condition and train forearm and shoulder muscles. The angular bar design helps put leverage against the user. By turning the apparatus, the user is able to activate the forearm muscles more effectively through the full range of motion.