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Multi-layer ceramic chip capacitors (MLCCs) are the most common capacitor found in modern electronics. MLCCs have many attractive features: low ESR, good capacitance-to-volume ratio, relatively low leakage, non-polarity, and low cost. It’s no wonder that when choosing a capacitor, an electrical engineer will usually specify a ceramic first before any other type. However, there is […]

Understanding the Basics of Adhesives Selecting wearable medical device adhesives requires a solid understanding of the basics of adhesive. Sticking a medical device to skin is not as simple as it sounds. Numerous variables come into play such as the patient’s age, gender, race, diet, activity, skin condition, and climate. Other variables include the stretchability […]

In many medical devices, especially those that are microprocessor controlled, it is common for programmable subsystems to communicate via asynchronous serial protocols. Such subsystems include things like programmable power supplies, syringe pumps, temperature controllers, motor controllers and smart linear actuators. I’m often surprised by how many of these devices have poorly thought-out protocols that make it […]

A few years ago I started interviewing successful serial medical device entrepreneurs. Then I began assembling data from people I identified through Google or LinkedIn searches. It’s always fascinating to hear their stories and realize how they’ve improved or saved thousands of lives in many different ways. Typical of the entrepreneurs I speak with, Doug Evans […]