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POLYGRAPH

POLYGRAPH FEATURES

Meditech Technologies India Private Limited is the largest Polygraph manufacturer and exporter in India. Meditech Polygraph is a highly sensitive oscillograph capable of recording simultaneous signals in different modes. Z fold ink writing chart paper is used to write from various sources.

Meditech Polygraph recorder is used by medical professionals for recording of Bio-electric potential like EEG, ECG, B.P., Pulses. It also used In varoius industries for recording pressure, vibrations and temperature.

The precise construction of assembly allows custom tailored performance. A variety of signals can be recorded with the help of appropriate transducers and amplifiers.

Meditech Polygraph Comprises of 5 Main Parts
1. Polygraph Main Console.
2. Polygraph Amplifiers.
3. Polygraph Transducers.
4. Accessories
5. Ordered Accessories

Main Console

Meditech manufactures Polygraph for simultaneously recording 8,4,6 and 2 parameters. A Polygraph used for recording 4 parameters simultaneously is called 4 channel and similarly for others. Polygraph are rack mounted on castors. However custom built Polygraph can also be manufactured according to user input.

The Main Console Houses

1. The Stepper Motor is used to control 10 speed noise free chart drive. The chart speed provided are 0.5,1,2,5,10,15,20,25,30 & 50. Speeds other than mentioned are provided against specific requirements.

2. There is a Pen recording system which contains driver amplifier for galvanometers (modular) and Ink well assembly. The pen has length of 120mm to minimize arc distortion. Pen cradle also has adjustment tension spring.

3. Power supply as a source.

4. Housing for amplifier for protection.

5. Pen length is 120 mm to minimise arc distortion.

6. Ink writing chart paper as “Z” fold type.

7. Time and event channel can be provided on request.

SALIENT FEATURES

1. Polygraph is manufactured as a Modular easily interchangeable assembly with pen motor.

2. Frequency response is 70 Hz.

3. Silent stepper motor chart drive.

AMPLIFIERS- Four types can be selected. SPHYGMOMANOMETER EKG PHONO PULSE AMPLIFIER will be given as optional.

These amplifier are modular interchangeable and one can easily plug them in or out in few seconds. User has to select an appropriate amplifier for recording of a particular parameter.
Example: for the recording of CLINICAL ECG, the user has to select EKG PHONO PULSE AMPLIFIER OR SPHYGMANOMETER EKG PHONO PULSE AMPLIFIER.

FEATURES-Common to all Meditech amplifiers

Noise level is less than 1µv.

Polarity reversals option for recording and calibration.

There is a High frequency filter averaging through filters.

Calibration facility is provided for each step of attenuation.

50 Hz notch filter IN & OUT is a standard feature.

Universal Bioamplifier

Universal Bioamplifier is capable of conditioning almost all kinds of biological signals which can be AC & DC.Low level of 10µv to a high level of 20mv. The bio signals like EEG, EMG, ENG, ERG, ECG, GSR can be recorded by its use. Appropriate transducers are used to record Pressure, Force, Volume, Pulse, Respiration, Temp. etc.

ALL PURPOPSE AMPLIFIER

This is a low budget amplifier which has functions same as Universal Bioamplifier except that its maximum sensitivity is 50µv/cm and minimum 100µv/cm

DC AMPLIFIER

The DC amplifier has a micro sensitivity range of 10µv to 20mv/cm. This amplifier has limitation to record DC signals & to couple Meditech s Bridge transducers Pressure, Force, Volume and Temperature.

EKG PHONO PULSE AMPLIFIER

The EKG Phono Pulse amplifier helps in recording the output of five electrodes in various combination.Electro-Cardiogram can be recorded with clinical convenience and fidelity to exceeding that of a standard clinical electrocardiographs.50µv high sensitivity has been provided. Low level signals like EEG, EMG can also be recorded on these amplifiers. Phono is also accepted on these amplifiers. Phono cardiogram and photoelectric pulse transducer is also accepted.

SPHYGMOMANOMETER EKG PHONO PULSE AMPLIFIER

This is a versatile amplifier.  It does all the work which can be done by EKG PHONO PULSE AMPLIFIER. Blood pressure is indirectly measured using this amplifier.

AC AMPLIFIER

The AC amplifier is a high gain AC amplifier used in EEG recordings along with other AC surroundings such as EMG, EKG etc. It has two and four position input selector switches.One each for G1 and other for G2. A cable with jacks labeled 1 to 4 and Ground is provided. Hence these amplifiers can be used as general physiological amplifier.

TRANSDUCERS

A Transducer is a mechanical device which converts one form of energy to electrical energy or vice versa. Pulse, Respiration, Temperature, Phono Cardiogramme can be recorded using this transducer.Meditech manufactures following transducers.

(a)Pressure
(b)volume
(c)Muscle Activity and Force.
(d)Respiration Belt Isotonic Fine Movement.
(e)Pulse.
(f)Respiration (Thermistor).
(g)Temperature Internal.
(h)Temperature Surface.
(i)GSR

Optional Paid Accessories

Event and Timechannel: Time range from 1 & 10 seconds. The pressing of Button of Event marker gives deflection opposite to time marker.

Free Accessories with Meditech Polygraph

Meditech Provides following accessories with each console

One Extra pen

10 Nos Fuses

5 packet each of 250 sheets of chart paper

01 nos 5 pin junction Box

5 nos ECG limb electrode

01 Nos Extra Cradle

01 Nos Earthing Cord

½ litre INK

O1 Nos 3 Pin juction Box

01 Nos ECG Chest electrode

Instruction Manual for reading