WHAT IS BIPHASIC DEFIBRILLATOR?
What is Biphasic Defibrillator Machine?
Before we start, let’s define a few terms:
Energy: Energy in a defibrillator is expressed in joules. A joule is the unit of work associated with one amp of current passed through one ohm of resistance for one second. When we express it in a formula, it is generally stated as follows:
Joules (Energy) = Voltage X Current X Time
Joules have become a surrogate for current in modern defibrillator language.
Current: Current is what actually defibrillates the heart. It is also expressed as Voltage/Impedance (resistance).
Impedance: Resistance to Flow; there is resistance in the electrical circuit itself as well as in the patient. The amount of impedance in a patient is difficult to determine as it relates to body mass, temperature, diaphoresis quality of the contact with paddles or pads. Impedance is expressed in ohms.
Unlike conventional monophasic defibrillators, biphasic defibrillators deliver current in two directions. In the first phase, the current moves from one paddle to the other as with monophasic defibrillators. During the second phase, the current flow reverses direction. The underlying physiologic mechanisms aren’t fully understood yet, but it is clear that biphasic waveforms lower the electrical threshold for successful defibrillation. The shape of the current’s delivery is determined by the current, direction of energy and duration of the delivered energy. Animal research has demonstrated that the most effective waveforms maintain their shape and duration regardless of patient impedance. Biphasic waveforms adjust for impedance by varying the characteristics of the waveforms. This is intended to ensure that high-impedance persons will have the same chance for survival as those who are of low impedance. Biphasic defibrillation offers equal or better efficacy at lower energies than traditional monophasic waveform defibrillators, with less risk of post-shock complications such as myocardial dysfunction and skin burns. This is why almost all manufacturers of external defibrillators are now using biphasic waveforms in their devices.
What is Biphasic Waveform?
unlike AED Machine Biphasic defibrillator gives bilateral current as to be positive and negative after its electrical energy is discharged. Namely, it conducts electrical current bilaterally. On the first phase, current flows from one electron to the other as it is in monophasic defibrillator. On the second phase, current starts to flow on reverse direction. According to the studies done, it is observed that biphasic waves produce more successful defibrillation with lower energy than monophasic waves and so they are less harmful. In addition, since same results can be obtained with low energy use, some adverse effects such as burns are also reduced. As a main defibrillator & AED Machine also called Automatic external defibrillator suppliers in Dubai, Abu Dhabi, Sharjah and all cities in UAE, contact us now and get the best price for your defibrillator system today from our medical equipment supplier company in dubai uae. have a question: what is biphasic defibrillator machine? Contact Us Today
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