An Efficient Approach to detect Anastomosis: a skin burn using Thermistor

ABSTRACT Checking of proper skin flap placement operation in different degree burn condition is a very difficult task for doctors Pricking of the operated skin and by observing oozing blood doctors decides the good skin flap placement. This becomes a very painful testing for patient and doctors. A solution to this problem has been developed and presented here .A thermistor is used as a temperature sensor for the measurement of the skin temperature (i.e. normal skin) is made and then the temperature of the flap (or replaced skin) is measured. If the temperature of both the normal skin and flap is same then it indicate that the flap is properly attached. If there is deviation in both the temperatures then it can be indicated that the flap is not properly placed. Hence a system is developed which is less power, less costly and provides painless options for anastomosis i.e connecting two blood vessels with skin flap operation. An algorithm is developed which calculates temperature through software and indicated on LCD display. A thermistor array is developed to measure temperature of a lager region of our skin. A PIC microcontroller based system with RS232 based communication system has been developed and tested for real life. Less error indicates the success of the developed system. A computer interface will store a data of number of person for continuous checking of flap matching. Also the circuit is interfaced with computer using RS232 so as to have continuous monitoring of the patients skin temperature.