A portable electrocardiograph based on a smart phone
The present invention discloses a portable electrocardiograph based on a smart phone. The portable electrocardiograph includes an electrocardiogram sensor, a USB interface and a housing. The housing has an exposed driving knob and a receiving cavity for accommodating the electrocardiogram sensor and the USB interface. The housing has a transmission mechanism. The transmission mechanism includes an active member fixed to the driving knob, a first driven member connected to the electrocardiogram sensor and a second driven member connected to the USB interface. The first driven member and the second driven member synchronously move away from each other or approach each other.
