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Medical device: Defibrillator - Essay Example

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Medical device: Defibrillator

He developed a theory which postulated that Ventricular fibrillation occurred in hearts that were too good to be allowed to die. Beck applied the technique successfully on a 14 year old boy, through applying brief electric shocks on both sides of the heart, which had experienced fibrillation, and the result proved to have helped the boy regain his normal sinus rhythm (ECG facts made incredibly quick, 2009 p104). However the technique was first applied through surgically opening the chest and applying the brief electric shocks directly on the heart, through using two electric shock pedals on either side of the heart. Having been proved to be a viable technique that could help address the problem of Ventricular fibrillation, it was now time to address the problems that were noted to arise out of the direct application of the shocks on the heart. The post mortem investigations showed that there was a damage of the cells of the heart muscles. The trend continued until the 1950s, when the Defibrillator was used through an open heart cavity, where the shock pedals were applied directly on the sides of the heart, applying alternating voltage of between 300 and 100 volts (Jance, 2012 p33). In the mid 1950s, Dr V. Eskin pioneered an external Defibrillator device, which applied external electrodes through the chest cavity into the heart, with an alternating voltage of more than 1000 volts (American Association of Cardiovascular, 2004 p207). The advancement in the field was further made by Bernard Lown, who pioneered the development of Defibrillator devices that used direct current in 1959, which was then followed by the breakthrough of introducing portable Defibrillators, which was done by Prof. Pantridge, in 1960 (World Health Organization, 2010 p62). From...
Therefore, the Defibrillator is used to apply brief electric shocks oh the muscles of the heart, which could have uncoordinated contractions, that threatens to stall the heart beat completely, while stopping the heart from pumping blood. Therefore, the Defibrillator is used to reset the hearts rhythm, and thus help the heart resume its normal heartbeat and rate.The therapeutic function of the Defibrillator device occurs through the process of placing the electrodes of the device, which can either be pads or peddles, on the chest of the patient by a medical technician. However, considering that the area between the skin and the electrode, affects the transmission of the electrical charge to the heart, apple gel is applied on the skin area where the electrode pads or peddles are to be placed, to direct the electrical pulse into the heart (Hayes, Fallon & Noble, 2002 p762). After the Defibrillator is placed on the chest cavity, it sends the electrical pulse into the heart, through the chest cavity. Depending on the type of the Defibrillator being used, the voltage is either measured directly by the device, or the medical technician sets it manually, depending on the monitored heart rate (American Association of Cardiovascular, 2004 p210). Once the electrical shock reaches the heart, the heart stops momentarily, for the pace maker of the heart to regain control of the heart functionality. A Defibrillator is made up of several component parts, which are very essential for its therapeutic application. ...Show more


In the paper “Medical device: Defibrillator” the author focuses on an electronic device that is applied to address the fibrillation heart problem, through delivering a therapeutic dose of a brief electric shock, to the areas of the heart that is affected by the problem.

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