The digital stethoscope is a electrical device that used by doctors to hear the sound from our body. Conventional circuit of digital stethoscope is pretty complicated. There are plenty of functions a big LCD, multi-level of filters. To accomplish the goal of a digital stethoscope usually need a luxury circuit design (FIG.1) This circuit comes…
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A portable Handheld ECG device is usually small and can be used to measure the lead-1 ECG signal. That utilizes human’s left hand and right hand as lead-1 ECG signal. Since, the heart electrical signal must go from chest to the hands that means more noise will be introduced in. The noise immunity ability of handheld…
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Feature: 1 audio jack output for headphone Low power consumption : 2 mA Electrical Amplifies Gain: +32 dB Acoustic Amplifies Gain: +7 dB Noise level @1 KHz : <1uV Digital Stethoscope VitalSigns provide a wired digital stethoscope solution. VitalSigns Stethoscope solution provides high definition audio quality and much comfortable than traditional stethoscope. It is only acoustic and amplify…
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Heart disease is always the major death cause of the world. Some people have great medical insurance that can provide them a great annual cardio examination, but however, hundreds of thousands people never get even once ECG check in their lifetime. To create an accurate, affordable cardio inspector is always our major goal. We hope…
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High blood pressure There are 1/3 people around the world suffer high blood pressure problem and half of them never monitor the problem that leads the 80% of stroke on the other words it means 5 million people dead per year. Why people don’t monitor their blood pressure? Generally, High blood pressure bring no uncomfortable feeling…
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The basic concept of the blood pressure measurement is utilize the time difference between the ECG signal and the PPG signal. With a one time calibration (the more the better), the accuracy can keep around 3 month for sit still mode. Somehow, this is a better scenario for users to take more care about their…
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VitalSigns is a small team, but however, we are very proud that we built almost every we need. Today, I want to show you how we created a VitalSigns Cardio Wristband outlook prototype from nothing. The first step would be draw a 3D chart. It shall look like fancy and easy to use. We are no artist…
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It is a good day that our first APP on shelf. https://play.google.com/store/apps/details?id=com.vitalsigns.cardio VitalSigns Cardio provides your blood pressure, ECG and PPG s via the handheld device from VitalSigns Technology (http://www.vsigntek.com). APP Features: 1. Biosensor connection via BLE 2. Blood pressure measurement 3. Handheld Lead-1 ECG signal measurement 4. Accurate PPG signal measurement 5. Personal health…
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What is blood pressure Blood pressure is the major vital signs for human health. Blood pressure is the force of blood against your artery walls as it circulates through your body. Blood pressure normally rises and falls throughout the day, but it can cause health problems if it stays high for a long time. High…
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