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Student invention delivers better, safer heart shocks
Date:11/15/2013

out. But this increases the patient's risk for burns and death of heart tissue."

But team members say the PrestoPatch system could be used at the onset of the treatment. The team devised an electric switch that would allow doctors to attach three patches to the patient in all three locations, instead of choosing two. If the first shock fails, the doctor can quickly flip a switch and change the current's path through the body without necessarily increasing the energy of the next shock.

The PrestoPatch system's second component addresses excessive transthoracic impedance, a problem that occurs during defibrillation when the patient's body resists the life-saving current. Doctors now mitigate this crudely, pressing down on a patient's patch with their fists. To improve upon this, the students devised a manual compression tool to apply pressure in a safe, standardized way. Lights and an embedded speaker on the tool alert the doctor when the proper pressure is applied and warns if there is too much pressure.

In addition to Poddar and Subramanian, the PrestoPatch team members are Aaron Chang of Grand Prairie, Texas; Kevin George of Acton, Mass.; Peter Malamas of Bucks County in Pennsylvania; Melinda Chen of Baltimore; Rohil Malpani, of Kolkata, India; and Joon Eoh, of College Station, Texas.

The team's clinical sponsor was Todd J. Cohen, who earned his undergraduate and medical degrees at Johns Hopkins and is now director of electrophysiology at Winthrop University Hospital in Mineola, N.Y. "The team developed an actual working product which dramatically improves on the standard electrical cardioversion or defibrillation procedure," Cohen said.

He added, "My ultimate goal was to give the students a very positive entrepreneurial experience and allow them to explore their own creativity. The team excelled in every task and had fun at the same time."

The students' project emerged from the undergraduate design team prog
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Contact: Phil Sneiderman
prs@jhu.edu
443-997-9907
Johns Hopkins University
Source:Eurekalert  

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