IC Authenticator to Enhance Patient Safety

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This IC authenticator can enhance patient safety by allowing radiation-tolerance in surgical tools and sensor applications

The DS28E83 DeepCover IC authenticator by Maxim Integrated Products, Inc. can allow medical device designers to protect surgical tool data from memory-disruptive, high-energy gamma radiation used in sterilization.

Potential benefits

Medical device manufacturers commonly sterilise limited-use surgical tools or sensors through a gamma or e-beam process. High radiation exposure used in either process can disrupt and damage the standard, non-volatile memory (NVM) that electronic medical devices use for auto identification, as well as calibration and manufacturing data. This can jeopardize medical device data and patient safety.

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The introduced authenticator includes both elliptic curve digital signature algorithm (ECDSA) and Secure Hash Algorithm-256 (SHA-256)-based cryptographic features. As an authentication solution designed for gamma sterilization exposure, it can enhance patient safety. Additionally, the 1-Wire interface can allow simple integration into designs.

Implementation and applications

The DS28E83 authenticator integrates a radiation-tolerant NVM to prevent data loss during sterilisation. With this capability, device designers can implement protection from unauthorized re-use and aftermarket device counterfeiting.

By allowing electronic surgical instruments to undergo gamma or e-beam sterilization, the DS28E83 can enhance patient safety. Authentication is implemented through elliptic-curve and public-key cryptography to protect patients against the risks associated with non-qualified counterfeit devices or incidental re-use. It can be applied for medical surgical tools and sensor applications.

 

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