Method for correcting thermocouple measurement value to obtain bone drilling temperature of actual drilling point

Abstract

The invention provides a method for correcting a thermocouple measurement value to obtain the bone drilling temperature of an actual drilling point. The method comprises: step one, establishing threekinds of finite element analysis models; step two, carrying out solid bone drilling temperature measurement experiment and extracting highest measured temperature values of a model II and a model III,optimizing the model II and the model III, and applying optimization results to the model I; step three, simulating the optimized model I, model II, and model III and extracting a highest simulated temperature value; step four, calculating relative errors of the highest simulated temperatures of the model II and the model III relative to the model I under different bone drilling parameter combination, carrying out fitting to obtain a relative error formula, and calculating a highest temperature value of the actual drilling point of the model I based on a relative error formula and the highestmeasured temperature values of the model II and the model III; and step five, according to the highest temperature value of the actual drilling point, selecting a bone drilling parameter of a bone surgery operation and controlling a range. In addition, the invention also provides a computer device. Therefore, the accuracy of the highest temperature value of the actual drilling point can be improved.

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 mainta...

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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