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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