Biomedical Electrodes

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Biomedical Electrodes
Presented by- Md. Bashir Uddin Roll
1215502 Dept. of BME KUET, Khulna-9203
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Biomedical Electrodes

• Electrodes are first receiver of biomedical
  signal from the surface of the body/internal of
  the body.
• Receiving signals are given into the input of
  preamplifier that converts ionic conduction of
  tissues into electronic conduction.

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Types of electrodes

• Body surface electrodes
• Internal electrodes

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Body surface electrodes

• It is Placed on the surface of the body
• Examples
• Metal-plate electrodes
• Floating electrodes
• Flexible electrodes
• Dry electrodes

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Internal electrodes

• It is Inserted into the body (Needles)
• Wires Implanted electronic circuits
• Example
• Radio telemetry transmitter

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Electrodes for ECG

• Limb Electrodes
• Floating Electrodes
• Pregelled Disposable Electrodes
• Paste less Electrodes
• Air-Jet Electrodes

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Electrodes foe EMG

• Pad Electrode
• Chloride silver wire
• Needle type
• Hypodermic needle type
• Metal type micro electrode
• Micropipet Electrode

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Electrodes for EEG

• Chloride Silver Discs Electrode used for general
  study
• Needle Electrode used for special study

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Metal Electrode
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Metal Electrode (cont.)
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Jell Electrodes
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Internal Electrodes
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Internal Electrodes (cont.)
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Cup Electrodes
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Dry Electrodes
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Dry Electrodes (cont.)
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Micropipet Electrode
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THANK YOU