DEVELOPMENT OF A BLOOD LEAKAGE MONITORING SYSTEM FOR THE APPLICATIONS IN HEMODIALYSIS THERAPY


project center in Tirunelveli 

A commercial blood leakage detector, specific for hemodialysis therapy is currently available, which requires the sensing sensitivity of less than 1 ml of blood, and the blood leaking condition can be detected in 1 ∼ 2 seconds. The sensing method is basically based on the changes of the voltage signal in the sensor.  The main aim of our project is to inform the doctor about the patient conditions through voice and wireless communication. In this project Bio- system parameters namely heart beat, patient temperature and presence of the blood leakage. Abnormality in any one of the parameters will be send voice message to hospital staff and monitor through doctor.
                               Bio technique is that biomedical signal transfer a link between the patient and the physician. By using a miniature transmitter attached to the patient to inform over a range. The physician study and resets the subject with his full mobility. This technique provides the best method of isolating the patient from the recording equipments. 
 Heart beat is sensed by the electronic sensor unit. It gives current outputs directly proportional to absolute pulse variations. This is amplified using Instrumentation amplifiers and feed to embedded controller. The embedded controller wills continuously receiving these signals through sensor circuits and further do the work of displaying and inform to doctor through wireless communication. Temperature is sensed by the LM35. It gives current outputs directly proportional to absolute temperature variations. This is amplified using Instrumentation amplifiers and feed to ADC. The blood leakage can be sensed by Opto sensor. It is fixed at an appropriate location Presence and absence of blood variations of opto sensor. Above mentioned sensing circuits are connected to embedded through interface card. It will continuously receiving these signals through sensor circuits and further implement the communications. The RF transceiver is used continues monitoring of patient condition through wireless connectivity. As a primary function, the proposed work is successfully implementing blood leakage detection where if the blood leakage is detected, then the vacuum pump is suck the blood. And the voice processor is informing the patient condition to the hospital staffs.   

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