Presentation is loading. Please wait.

Presentation is loading. Please wait.

BME 462 Electrode selection, testing and placement Zexi Liu, Ashley Mulchrone, Yue Yin 09/30/2014.

Similar presentations


Presentation on theme: "BME 462 Electrode selection, testing and placement Zexi Liu, Ashley Mulchrone, Yue Yin 09/30/2014."— Presentation transcript:

1 BME 462 Electrode selection, testing and placement Zexi Liu, Ashley Mulchrone, Yue Yin 09/30/2014

2 Electrode Selection Dry-Contact and Noncontact Biopotential Electrodes:Methodological Review, Yu Mike Chi etc.

3 Wet Electrode Reusable Low-cost Produce reliable signals in different conditions Adhesive material to lower skin impedance, buffer electrode against mechanical motion Most common in clinical setting

4 Floating Electrode Metal disk is recessed, swimming in the electrolyte gel It is not in contact with the skin Reduces motion artifact

5 Dry Electrode Flexible dry surface-electrodes for ECG long-term monitoring, Klaus-Peter Hoffmann and Roman Ruff Direct contact with skin No electrolyte Use moisture on skin Work well for quick measurement Motion artifact Ex. Polysiloxane framework with conductive nano-particle

6 Non-contact Electrode Dry-Contact and Noncontact Biopotential Electrodes:Methodological Review, Yu Mike Chi etc. Gap between skin and sensor No dielectric layer Measure through hair, clothing or air A need to design amplifier to acquire signals

7 Electrode Placement 3 Lead ECG Einthoven’s Triangle 2 leads (3 rd can be calculated) 4 electrodes Current Standard – any part of arms/legs below the shoulders and the gluteal fold Shoulders and wrist are approximately equal

8 Electrode Placement Mason-Likar placement – mainly used for exercise Diminishes QRS complex Rightward axial shifts Torso placement Obscure myocardial infarction (create or mask) Motion artifact – muscle noise Bone Muscle StandardMason-Likar


Download ppt "BME 462 Electrode selection, testing and placement Zexi Liu, Ashley Mulchrone, Yue Yin 09/30/2014."

Similar presentations


Ads by Google