Research On The Measurement System Of Modularized Vertebral Therapy Instrument

With the widespread popularity of electronic products and long time of incorrect sitting posture,the incidence of spinal diseases is rising,and the younger trend is obvious.Existing devices for measuring muscle stiffness are generally bulky and inconvenient to carry and transport.Some detectors are small enough to hold,limited to shallow tissue and expensive.Devices that treat muscle stiffness generally lack sensors to detect and provide feedback on the effectiveness of the treatment.In order to make the massage better applied in clinical treatment,the study of a combination of measurement and treatment functions can hold the vertebral therapy instrument,the main content is as follows:(1)The force generated by muscle deformation is used as the basis to judge the degree of muscle stiffness.According to the movement characteristics of electromagnet,vibration massage is used as the principle of vertebral therapy instrument.In order to solve the overheating problem in the working process,a mechanical structure of a modular chiropractic instrument was designed.The structure consisted of a front module,a middle module and a back module,which were respectively used to detect muscle stiffness,apply impulse force and detect pre-load force.According to the different use needs of modules,the corresponding connection mode and circuit contacts are made.In order to test the muscle hardness in the specified interval,some parts of the structure are compared and simulated,and the appropriate parameters are selected after considering the influence of the measuring range and the body weight.(2)A variety of measurement and treatment modes were developed for different patients by changing the parameters such as the frequency of the chiropractic instrument and the size of the pre-load force,and using the sensor readings as the trigger conditions for the start and stop of the electromagnet.The user software interface was written,through which functions such as modifying treatment parameters and selecting treatment sites were realized conveniently,and the measurement results and treatment effects were visualized.(3)The dynamic simulation model of the whole structure of the chiropractic instrument was established to study the influence of different factors such as spring stiffness coefficient,gravity and pre-load force on the test results of the chiropractic instrument.The results show that the measurement effect is good for deep muscle,and it is sensitive to the change of application environment.Static simulation was used to study the stress and deformation of the joint parts and the important parts under the ultimate load.The results show that the strength of the joint parts meets the service requirements.(4)The principle prototype of a chiropractic instrument was developed,and the feasibility of measuring the force generated by muscle deformation to judge the stiffness of muscle was verified.The temperature measurement of each part of the chiropractic instrument at different frequency and working time shows that the replacement module can meet the needs of the chiropractic instrument working for a long time.