5 results about "Functional measurements" patented technology

The application relates to the technical field of function test, and discloses a stress measurement system for spring fatigue state, which comprises an excitation unit, a sensing unit and a signal processing unit. The excitation unit applies an alternating excitation magnetic field to the spring to generate a stress-modulated induced electromotive force signal. The sensing unit collects magnetic characteristic parameters by using a quadrature differential sensing structure. The signal processing unit obtains phase components in a tangential signal and a radial reference signal, calculates a dynamic spiral angle deflection based on a phase difference, determines a dynamic differential compensation coefficient to extract a tangential principal stress component and compensate for a magnetic flux leakage vector deviation. Through a space posture modulation and lift gap fluctuation suppression mechanism, the application realizes dynamic alignment of a sensor measurement main shaft and a spring stress tensor main shaft, effectively eliminates geometric deflection errors caused by large amplitude deformation, and ensures that the system has high signal-to-noise ratio and baseline stability under cyclic load.

The embodiment of the present application provides a kind of one second forced expiratory volume measurement method and device based on millimeter wave radar, the method comprises: using millimeter wave radar to collect echo data of human body for lung function test;Respiration signal is extracted from the echo data, and signal segment of forced expiratory process is intercepted from the respiration signal;Key point is sought in the signal segment of forced expiratory process, and the relative value of forced vital capacity and the relative value of one second amount are calculated based on the key point;Based on the relative value of forced vital capacity, the relative value of one second amount and body feature data, the one second forced expiratory volume of human body is calculated.In the embodiment of the present application, the characteristics that the cost of millimeter wave radar is low, the volume is small, does not invade privacy, by receiving echo signal reflected from human body, the motion condition of human body surface can be non-contact sensed, low cost, convenient, non-contact measurement of one second forced expiratory volume of human body is realized.

The invention provides a lung postoperative precise monitoring and individualized rehabilitation strategy guidance method and device, and relates to the field of medical care. The method comprises the following steps: constructing a lung three-dimensional model through preoperative and postoperative CT (Computed Tomography) images; clinical features such as gender, age, body weight index and operation type in the electronic medical record are synchronously obtained, respiratory function testing is completed in batches, and parameters such as vital capacity, FVC and FEV1 are obtained. Bronchial atlas construction and high-precision preoperative lung segment segmentation are carried out based on CT data, flexible registration is adopted to analyze the volume, density and ventilation change of each lung segment, and a functional parameter matrix is obtained. And the recovery degree is graded according to a gender-age threshold value, so that personalized rehabilitation training suggestions are generated. According to the method, the lung segment topological structure remaining after the operation can be accurately recognized through a graph matching algorithm, rehabilitation details can be clearly recognized, and a basis for formulating a highly personalized rehabilitation scheme is formed.

A wearing device for shoulder joint function testing comprises a shell, a gyroscope sensor, a thin film pressure sensor, a controller and a power source are arranged in the shell, a pressing plate is arranged above the shell, the pressing plate and the shell are connected through at least two springs, the center of the lower side of the pressing plate is connected with a moving column, and the moving column is connected with the thin film pressure sensor. A through hole is formed in the top of the shell, an empty cylinder is fixedly arranged in the through hole, the lower end of the movable column downwards penetrates through the empty cylinder and then makes contact with the sensing portion of the film pressure sensor, the two sides of the bottom shell are each connected with one end of a wrist strap, and a hasp is arranged between the other ends of the two wrist straps. The shoulder joint measuring device is convenient to carry and suitable for measurement on various occasions, and a patient can actively feed back the movement range and the strength change of the shoulder joint to medical staff in the rehabilitation function exercise process. The upper limb movement range of a patient is collected through the gyroscope sensor, the muscle strength value of the upper limb of the patient is collected through the film pressure sensor, the data are used for a doctor to judge the rehabilitation condition of the patient, the data are accurate and reliable and not prone to being influenced by external factors, and errors caused by testing of different persons are reduced.

The invention relates to the technical field of medical equipment, and particularly discloses a cardiopulmonary function testing device with a rehabilitation training function, which comprises a tester and a power vehicle, the power vehicle further comprises a support rod, a treading mechanism and a grip, the grip is mounted at the bottom of the support rod, the treading mechanism is mounted at the bottom of the support rod, and the cardiopulmonary function testing device further comprises a force storage mechanism, the force storage mechanism can store force generated in the moving process of the treading mechanism and act on the treading mechanism. The connecting mechanism is installed between the treading mechanism and the grip, the connecting mechanism can achieve opening and closing actions of the grip, when a user does not have strength, the lower limbs of a patient can be driven to move passively, and therefore a certain massage effect on the lower limbs can be achieved; and meanwhile, the treading mechanism can drive the grip to perform opening and closing actions in the working process, so that rehabilitation training actions can be performed on the upper limbs in the rehabilitation training process, and healing of wounds and recovery of functions can be promoted.