At the present time anesthetics,
drugs which induce loss of awareness, are often used for surgical operations. A
general anesthetic should cause a progressive depression of the central nervous
system and cause the patient to lose consciousness. In contrast, a local
anesthetic will affect sensation at the region to which it is applied.
To maintain an adequate depth of
anesthesia without compromising patient's health, an anesthesiologist usually
works as a multi-task feedback controller to roughly regulate the drugs
titration while observing a variety of patient outcomes. Automatic anesthesia
controller design aims to automatically regulate anesthesia levels by taking
account on several physiological measurements and then frees up
anesthesiologists for more important tasks in operation.
This
project designed using
the PIC Microcontroller aids in the control of feeding Anesthesia for patients
during Surgery times. This project
Consists of a Heart Beat sensor to
detect the Heart beat rate and a Mechanical Arrangement with syringe for
feeding anesthesia to the patients.
Operation:
First
the Syringe is filled with anesthesia liquid and kept in the mechanical
arrangement. And the Heart beat rate is
calculated. Then the Liquid is slowly
injected into patients body and the changes in the Heartbeat rate is observed.
Then according to the Heart beat rate the Liquid is injected into the
body.
The injecting process is controlled
by the movement of the Stepper Motor.
The Complete Status is Indicated in LCD
with online Updations.
Hardware Requirements
1. PIC microcontroller PIC16F877
2. Heart beat Sensor
3. Power supply circuits
4. Stepper Motor Driver Circuits
5. Stepper Motor
6. Mechanical model constructed with
syringe
Software:
1. Hitech C compiler
2. MPLAB IDE V6.0
Application:
1. Clinical applications
2. Operation Theaters
Advantages:
1. PIC Microcontroller based operation
2. Syringe can be pre adjusted to fill
the anesthetic fluid
3. Stepper motor is used for taking
accurate ml of the fluid
4. better than human control
5. Controlling
Analgesia Level through Heart beat rate Analysis
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