From the link about 1/3 of the way down the page: Only 1.7oz.berkeman said:
I should have followed up with a device I made to show kids in a science class ten years agBorg said:
I had an oscilloscope and a big lens to throw the output onto a large screen and used a styrofoam cup from Burger King with a Piezo pickup glued inside and then the signal going straight to the O'scope. Put the cup on a volunteer kid's chest and you could see the heartbeat directly on the screen, no electronics or amps needed, just the bare output of the piezo pickup going straightway to the scope and the heartbeat was visible!Rijuven's CardioSleeve is a stethoscope add-on that allows for simultaneous recording of 3-lead EKG and heart sounds.
The CardioSleeve attaches to any standard stethoscope and wirelessly connects to a smartphone or tablet. It records the heart sounds and EKG signals, which can then be viewed and analyzed on the device.
The CardioSleeve allows for quick and easy recording of both heart sounds and EKG signals, providing a more comprehensive assessment of cardiac function. It also eliminates the need for multiple devices, saving time and reducing costs.
Yes, the CardioSleeve is designed to be used in any healthcare setting, from hospitals to clinics to ambulances. It is also suitable for use in telemedicine, allowing for remote monitoring of patients.
Yes, the CardioSleeve has received FDA clearance for use in clinical settings. It has also been approved by other regulatory bodies, such as the CE in Europe and the TGA in Australia.