The ADUCM355 component does not appear to be hermetically sealed, which may lead to water penetration in a high humidity/moisture environment like an implant. In this case, it is suggested encapsulating the entire circuit into a hermetically sealed package for implantation.
Regarding implanting devices manufactured by ADI, please refer to Analog Devices' Terms and Conditions of Sale, clause 18 (as of September 2024):
18. Use in Life Support and Other Critical Applications: Products sold by Analog Devices are not designed, intended, warranted or approved for use in life support, implantable medical devices, transportation, nuclear, safety or other equipment where malfunction of the Product can reasonably be expected to result in personal injury, death, severe property damage or severe environmental harm. Buyer represents and warrants that it will use appropriate safeguards to minimize potentially dangerous consequences associated with Product failure. Notwithstanding the foregoing, if Buyer uses or sells Products in such critical applications, it does so at Buyer’s own risk and Buyer agrees to defend, indemnify and hold harmless Analog Devices from any and all damages, claims, suits or expenses resulting from such use.