New pressure sensing elements for FFR coronary catheter

Jaakko Saarilahti (Corresponding Author), David Gomes Martins, Anu Kärkkäinen, Feng Gao, Jukka Kyynäräinen, Heikki Kuisma

Research output: Contribution to journalReview Articlepeer-review


The next generation FFR Coronary Catheter includes a new stable pressure sensor, AD conversion at the tip of the catheter and mount of these components on the sidewall of the catheter instead of the guide wire enabling thus to use standard guide wires. The new ultrathin capacitive MEMS pressure sensor die with corresponding readout ASIC circuit offers better accuracy, robustness and automated assembly. The measured performance values of the fabricated chipscorrelate well with the simulated ones indicating comprehensive understanding of the sensor operation and control of the fabrication process. The test measurements outperformed the specifications for the FFR pressure sensing.
Original languageEnglish
Pages (from-to)100-110
Number of pages11
JournalJournal of Medical Engineering & Technology
Issue number2
Publication statusPublished - 3 Jun 2019
MoE publication typeA2 Review article in a scientific journal


  • FFR
  • coronary catheter
  • pressure sensor
  • ASIC
  • MEMS
  • OtaNano

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