Method and equipment for correcting thermocouple measurement value to obtain drill bone temperature at actual drilling point

Abstract

The present invention provides a method for correcting the measured values ​​of thermocouples to obtain the temperature of the drilled bone at the actual drilling point, including: 1. Establishing three finite element analysis models; The highest measured temperature value; optimize Model 2 and Model 3, and apply the optimization results to Model 1; 3. Simulate the optimized Model 1, Model 2, and Model 3, and extract the highest simulated temperature value; 4. Calculate in different Under the combination of drill bone parameters, the relative error of the maximum simulated temperature of model 2 and model 3 relative to model 1, and the relative error formula is fitted, and the model is calculated according to the relative error formula and the maximum measured temperature values ​​of model 2 and model 3 1. The highest temperature value of the actual drilling point; 5. According to the highest temperature value of the actual drilling point, select the bone drilling parameters of the bone surgery and control the range. The invention also provides a computer device to improve the accuracy of the highest temperature value of the drilled bone at the actual drilling point.

Description

Technical field[0001]The invention relates to a drilling temperature, in particular to a method and equipment for correcting the measured value of a thermocouple to obtain the actual drilling point drill bone temperature.Background technique[0002]As an important part of the living body, bones also have important functions such as supporting the body, protecting internal organs, producing blood cells, storing minerals, maintaining the PH value in the blood, and completing exercise. In real life, excessive exercise, falling from high altitude, object impact, etc. will cause the bones to be subjected to instantaneous impact loads, which will cause bone damage and fractures. Severe fractures will affect people's normal life, if not handled properly, it will leave sequelae. Therefore, effective treatment of fractures is particularly important. In surgical operations, drills are often used to drill holes around the fractured bone to fix or install medical instruments to maintain the stabi...

AI Technical Summary

Problems solved by technology

The highest temperature measured is taken as the highest temperature of the bone during the drilling process, because the measurement point is not the highest temperature distribution area (the highest temperature generated when drilling the bone appears at the bottom of the inner wall of the hole), but in the highest temperature distribution area At the same time, in order to measure the temperature, the thermocouple is buried, and the original integrity of the bone is destroyed by drilling holes in the bone. The heat conduction in the bone process also has a certain influence. Under the joint influence of various factors, the maximum temperature value measured in the experiment (the temperature at the bottom of the hole when the thermocouple is embedded in the hole) is different from the maximum temperature value of the actual drilling point (the temperature at the bottom of the hole is not embedded). There is a certain error in the temperature at the bottom of the inner wall of the drilling hole when using a thermocouple, and the temperature measurement error will have a negative impact on the determination of the parameters of the drilling operation

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