73 results about "Hand tremor" patented technology

The present disclosure describes a method and system for performing robot-assisted surgical procedures. The system includes a robotic arm system assembly, an end effector assembly, and a hybrid control mechanism for robotic surgery. The robotic arm is a lightweight, bedside robot with a large range of motion, which can be easily manipulated to position endoscope and surgical instruments. The control console is mounted at the distal end of the robotic arm to enable robotic arm to follow operators arm movement, provide physical support, filter out hand tremor, and constrain motion. A universal adapter is also described as an interface to connect traditional laparoscopic tools to the robotic arm.

The invention discloses a hand tremor detection method. The hand tremor detection method is characterized in that hand tremor detection includes finger tremor detection, wrist tremor detection and arm tremor detection; the hand tremor detection is completed through a hand tremor detection system, and the hand tremor detection system comprises a hand tremor detection module which is composed of a handwriting input module, a handwritten data acquisition module, a handwritten data storage module and a handwritten data processing module. The hand tremor detection method includes the steps: firstly, executing hand tremor detection drawing activities through the handwriting input module, secondly, acquiring handwritten data generated from the hand tremor detection drawing activities executed by a detected person through the handwritten data acquisition module, and finally, performing hand tremor detection index calculation through the handwritten data processing module. The hand tremor detection method can achieve more comprehensive and meticulous quantitative hand tremor detection and is simple and feasible.

A hand-held laser pointer is disclosed that comprises a laser module that is isolated from unwanted hand tremor motions of the laser pointer housing. A passive inertial stabilizer is utilized for stabilizing the laser module to suppress laser dot jitter associated with hand tremor. To achieve the above object, a collimated laser diode module is mounted on a stage that is suspended by a low-friction gimbal that pivots with respect to the housing of the pointer on two intersecting and mutually perpendicular axes. The inertial stage is coupled to the housing via a spring and damper.

The invention discloses an automatic photographing method for face detection, which is used for a photographer to photograph a target object. The automatic photographing method for face detection comprises the steps of: detecting the face of the photographer through a detection lens and acquiring at least two face images of the face; capturing an image variation of the face images; and when judging the image variation exceeds a photographing starting value, photographing the target object through a photographic lens. In the whole process, a shutter button does not need to be pressed, and the photographing can be finished only by using the variation of the face images of the photographer, so hand tremor caused by the pressing operation can be completely avoided, and further the photographicquality is improved.

The invention relates to a wearable human arm tremor detection device and a signal processing method thereof. The device comprises a tremor signal detection system and a tremor signal processing system; wherein, the tremor signal detection system comprises an elbow joint tremor detection system, a wrist joint tremor detection system and a hand tremor detection system; the detection systems adopt independent modular structures; DSP processor units in the detection systems are connected with own sensor modules, wireless communication units and power supply units; the tremor signal processing system comprises a DSP central processing unit and a wireless communication unit as well as a display, which are connected with the DSP central processing unit; the DSP processor unit in the detection system is connected with the DSP central processing unit in the tremor signal processing system by the wireless communication unit. The tremor signal processing method adopts the 'two-stage' adaptive filtering algorithm to obtain the normal movement information and the tremor movement information of the arms of the patients. The device adopts the elbow-wrist-hand type wearing structure and detects the arm tremor information of the tremor patients in real time.

The invention discloses a self-adaptive filtering device of a master-slave minimally-invasive surgery robot system, comprising a trembling action self-adaptive filtering device, a master manipulator, a position collecting module, a motion control module, a slave manipulator driving module, a detection module, a slave manipulator, a feedback module and a computer control system. The trembling action filtering device is used for filtering hand trembling actions of a surgery operator and restoring a surgery operation desired signal to the maximum degree; the master manipulator driving module in the filtering device is used for driving the master manipulator; the position collecting module is used for collecting a position signal of the master manipulator; the motion control module is used for processing the collected position signal and controlling a motor to drive the slave manipulator to complete the surgery operation; finally, the feedback module is used for supplying real-time image feedback information; therefore, a closed-loop minimally-invasive surgery robot control system is formed. The invention can effectively filter the hand trembling actions, which ensure high precision and reliability of the minimally-invasive surgery.

A magnetic writing instrument designed to allow people with hand tremors to write and draw with increased clarity. Consisting of a stylus attached to a base at an appropriate writing angle. The base houses a magnet and accommodates three caps of varying thickness to match the resistance needed with the users tremors. There is also a metal writing base that interacts with the magnet. The paper or writing stationary is placed between the metal writing base and the writing instrument.

A tunable and adjustable device for stabilizing tremors includes a rigid splint for receiving a patient's hand, wrist and forearm, and at least one gyroscope removably and rigidly attachable to said splint and positionable for countereffecting the tremors. Also, a method for tuning and adjusting the device is provided which includes assessing the dynamic characteristics of the patient's tremors, assessing at least one activity the patient intends to perform with his / her hand, wrist, and arm which is subject to tremors, attaching the splint to the patient's hand, wrist, and arm that he / she intends to use for the at least one activity, and attaching and positioning the at least one gyroscope to the splint at least one location which countereffects the patient's tremors.

A hand-held laser pointer is disclosed that comprises a laser module that is isolated from unwanted hand tremor motions of the laser pointer housing. A passive inertial stabilizer is utilized for stabilizing the laser module to suppress laser dot jitter associated with hand tremor. To achieve the above object, a collimated laser diode module is mounted on a stage that is suspended by a low-friction gimbal that pivots with respect to the housing of the pointer on two intersecting and mutually perpendicular axes. The inertial stage is coupled to the housing via a spring and damper.

The invention discloses a smart wristband for quantitatively evaluating the motion function of a Parkinson patient. The smart wristband for quantitatively evaluating the motion function of the Parkinson patient comprises a wristband body, an evaluating system arranged in the wristband body and an upper computer. The evaluating system comprises a motion sensor module for detecting the motion states of the hands of the patient in real time and sending detected motion state signals to a central processing module; the central processing module is used for receiving the motion state signals sent by the motion sensor module, and used for analyzing and processing the motion state signals to acquire motion state parameters and / or disease condition information and sending the motion state parameters and / or disease condition information to a wireless communication module; the wireless communication module is in communication with the upper computer. The concept of the smart wristband is applied to evaluating the motion function of the PD patient, the load is low, continuous monitoring for a long time is achieved, hand tremor symptoms of the PD patient can be perceived in real time, and the hand tremor symptoms of the PD patient can serve as a basis to objectively evaluate the PD patient, so that the defect that subjectivity of the scaling method is higher is overcome, and treatment for the disease of the PD patient is greatly facilitated.

A driving system is provided. The driving system includes a fixed substrate, a coil unit which generates an electromagnetic force if an electric current applied, a magnet unit formed on the fixed substrate to face the coil unit, and a plurality of driving units which are interconnected with each other on the fixed substrate, and which are moved respectively in parallel direction with respect to a surface of the fixed substrate in accordance with an interaction between the electromagnetic force and a magnetic force of the magnet unit, if the electric current is applied. As a result, a non-contact driving is provided.

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.

The invention discloses a wearable device suitable for hand function rehabilitation monitoring and evaluation of a patient with Parkinson's disease, and belongs to the technical field of medical rehabilitation auxiliary equipment aiming at solving the problems of incapability of monitoring the patient with Parkinson's disease, inaccurate measurement result in the rehabilitation process and the like in the prior art. The wearable device comprises a glove body, a signal acquisition unit arranged on the glove body, a signal processing unit arranged on the glove body and an upper computer, and thesignal acquisition unit comprises a tremor signal acquisition unit used for acquiring hand tremor signals, a bending signal acquisition unit used for acquiring the hand bending degree and a pressuresignal acquisition unit used for acquiring the hand pressure.; the signal processing unit processes the signals acquired by the signal acquisition unit and transmitting the signals to the upper computer; and the upper computer judges the tremor degree of the patient through the tremor signals, grades the hand bending degree through a bending degree digital signal, and grades the hand muscle forcedamage degree through a pressure digital signal.

A method is provided for determining presence of a user's hand tremor or intentional motion during recognition of an image through photographing. Image sample blocks of a previous frame are detected by using an edge detecting method. A block distance between the detected image sample block of the previous frame and an estimated image sample block of a current frame is calculated. The calculated block distance is compared with a first threshold. The calculated block distance is compared with a second threshold when the calculated block distance is less than the first threshold.

A hand-held laser pointer is disclosed wherein the laser beam is isolated from unwanted hand tremor motions of the laser pointer housing. A laser beam is directed toward a pair of passively inertially stabilized mirrors disposed within the housing that are biased to a neutral position by a spring and damper. Both the laser beam that exits the housing and the laser dot appearing at a target are minimally affected by laser jitter associated with hand tremor.

The invention provides a tremor suppressing glove for suppressing hand tremor. The tremor suppressing glove includes a glove body and a tremor suppressing device; the tremor suppressing device is arranged on a position corresponding to a hand back, of the glove body; the tremor suppressing device includes a signal acquisition unit, a signal processing unit, and a tremor suppressing signal generation unit; an output end of the signal acquisition unit is electrically connected to an input end of the signal processing unit; and an output end of the signal processing unit is electrically connectedto an input end of the tremor suppressing signal generation unit. The invention provides a tremor suppressing method for suppressing hand tremor, which includes: acquiring a first frequency of a handtremor motion; generating a corresponding first tremor suppressing signal on the basis of the first frequency, providing an acting force opposite to the hand tremor motion to a hand on the basis of the first tremor suppressing signal to suppress the hand tremor motion. The tremor suppressing glove for suppressing hand tremor is small in size, is light in mass, is easy to wear, and is easy to use.

Zoom lens, using lens eccentricity to compensate for image blur, has four groups of lens pieces; 1st, 3rd and 4th, each with positive refractive power, and 2nd with negative refractive power, arranged in series on “closer to a subject first” basis. Moving from wide to telephoto causes 1st and 2nd groups to separate from each other, 2nd and 3rd groups to come closer to each other, and 3rd and 4th groups to come closer to each other. The leading subset of the 4th group is closest to the subject, includes lens elements of positive and negative refractive power cemented together, and serves as an anti-tremor shift lens. The zoom lens satisfies the follows:1.45<f41 / fw<1.8where f41 is a focal length of the leading subset in the 4th lens group, and fw is a focal length of the lens optics as a whole in the wide-angle mode.

The invention provides a tremor detection system based on a bidirectional long-short-term memory neural network, relates to the field of artificial intelligence, and aims to solve the problem of low accuracy of tremor detection in the prior art. The tremor detection system comprises a hand detection module and a model prediction module, wherein the hand detection module comprises a tremor data acquisition unit and a tremor data processing unit; the tremor data acquisition unit is used for acquiring a hand three-axis acceleration signal; the tremor data processing unit is used for converting the hand three-axis acceleration signal into hand three-axis acceleration data; the model prediction module comprises a hand tremor data processing unit and a model training unit; the hand tremor data processing unit is used for processing the received three-axis acceleration data to obtain a training set and a test set; and the model training unit is used for training a model by utilizing the training set and the test set to obtain a trained model. The tremor detection system is used for tremor detection and is high in detection efficiency.

The invention relates to a hand tremor prevention visual eye drop bottle which is conveniently used by the old suffering from eye diseases or disabled patients. The defects that an eye drop bottle has high probability of poking the eyes, eye drops are dripped outside the eyes and the bottle cover is lost during use are overcome. According to the technical scheme, a cylinder is arranged at the top of a bottle cover, and the bottle cover and a supporting mat thereon are connected together in an interference fit manner; one end of a supporting rod is in clearance fit with the bottle cover by virtue of the cylinder, so that the supporting rod can be freely adjusted from top to bottom; the other end of the supporting rod and a bottle bottom bracket frame are subjected to hot melting together; the bottle bottom bracket frame is connected with a liquid medicine bottle base in an interference fit or adhesive connection manner; a mirror coating is arranged on a 30-degree inclined surface on one side of the top. The product accords with the ergonomics, and due to visualization and supporting structure arrangement, the dripping position of eye drops can be clearly seen, and hand tremor can be avoided so as not to injure the eyes. During use, only the bottle cover needs to be unscrewed, the supporting rod is not constrained and automatically pops up to form a 60-degree oblique angle with the horizontal line. The eye drop bottle is simple in structure and low in construction cost.

The invention provides a peritoneum dialysis liquid exchange auxiliary device and relates to the technical field of peritoneum dialysis. The structure of the peritoneum dialysis liquid exchange auxiliary device comprises a first guide rail and a second guide rail, wherein the first guide rail is provided with a first bracket and a second bracket which can slide along the first guide rail; a third bracket, which can slide along the second guide rail, is arranged on the second guide rail; in a liquid exchange process, when a dialysis liquid connector is in butt joint with a peritoneum dialysis short pipe, the dialysis liquid connector is clamped on the first bracket, and the peritoneum dialysis short pipe is clamped on the second bracket; by pushing the first bracket and the third bracket, the dialysis liquid connector and the peritoneum dialysis short pipe, which are accurately aligned, are connected; after liquid is exchanged, the dialysis liquid connector is separated from the peritoneum dialysis short pipe, and an iodophor cap is clamped on the second bracket; by pushing the second bracket and the third bracket, the iodophor cap is aligned to a pipe opening of the peritoneum dialysis short pipe and covers the pipe opening. In a whole liquid exchange process, the auxiliary device can be used for effectively preventing touch pollution and particularly can realize accurate alignment for patients with amblyopia or patients with hand tremor; the convenience for liquid exchange operation is greatly improved.

An auto stabilization method and a photographing apparatus using the same are provided. The photographing apparatus having the auto stabilization function includes a voice coil motor actuator (VCMA) to move a photographing element. In the generation of hand tremor, the photographing apparatus controls compensating of the hand tremor. Because one or more dynamic characteristics according to a structure of the VCMA is considered, saturation or delay of displacement of the VCMA is avoided, and a clearer image is provided.

The invention discloses a modeling method for tremor detection and a hand tremor detection device and method.The hand tremor detection device comprises an accelerometer used for collecting three-dimensional acceleration data, a myoelectric signal differential sensor used for collecting myoelectric data, a filtering assembly used for filtering hand tremor signals, a feature parameter extraction component used for carrying out feature extraction on the basis of the filtered hand tremor signal, and a tremor detection modeling component used for carrying out classification by utilizing a trained model and input feature parameters to obtain a detection result of the hand tremor signal. The hand tremor is detected by comprehensively and flexibly utilizing the combination of various characteristic parameters of the acceleration and the myoelectricity data, so that the detection accuracy is improved.

The invention discloses a Parkinson hand tremor monitoring system which comprises a collecting transmission node module and a receiving display terminal module. A sensing module, a power module and asignal processing sending module are arranged inside the collecting transmission node module, an antenna A, a match circuit A and a control chip module are arranged on the receiving display terminal module, and signals are transmitted between the collecting transmission node module and the receiving display terminal module. Long-term real-time monitoring can be performed on a Parkinson patient conveniently, the sensing module is arranged inside the monitoring system, meanwhile, the sensing module adopts a nine-axis sensor, the monitoring system is small in size, the higher measuring precisionis achieved, the Parkinson patient tremor frequency can be collected more sensitively, the collection process is more accurate and objective, and the monitoring system can collect signals in time moreefficiently.