MEMS-based fiber optic pressure sensor (OPP-M200—PEEK encapsulation)

OpSens’ OPP-M is a MEMS-based fiber optic pressure sensor designed exclusively for measuring human and animal physiological pressure. These 0.20 mm OD tiny sensors are intended for use in medical equipment such as catheters or guidewires.

Minimally invasive physiological pressure measurement is possible using guidewires or other comparable interventional devices. Its new patent-pending design aids in the removal of moisture-induced drift and the reduction of thermal zero shift.

The PK6 encapsulation is excellent for applications that demand a bigger dimension yet have difficult material compatibility criteria.

OpSens’ new encapsulated OPP-M is available for integration. The encapsulation can be performed on the sensor tip and across the entire optical cable in various materials and sizes. The bundled sensor significantly reduces product development expenditure, lowering the total cost of setup and manufacturing processes.

The OPP-M addresses the medical industry’s requirements for long-term precision, consistency, low drift, and high-fidelity pressure measurements in the presence of harsh RF, EM, MR, and microwave fields by integrating OpSens WLPI signal conditioning technology (patent # 7,259,862) and the characteristic benefits of fiber optic.

Key features

  • MRI is both safe and compatible
  • High precision
  • Extremely small
  • Custom sensor packing is included
  • Immunity to EMI/RFI
  • Catheter integration is simple
  • Affordable


  • Monitoring of physiological pressure
    • Urodynamic
    • Blood pressure within the vessels
    • Intraocular injection
    • Pumping of the intra-aortic balloon
    • Intracranial pressure is provided
  • Catheter research, creation of new products design
  • Pressure measurements were taken during electrosurgery, MRI, and exposure to MW/RF particles
  • Applications for cardiac assistance
  • Design of guidewires (0.2, 5 mm OD model)

PK6 Encapsulation: MEMS-Based Fiber Optic Pressure Sensor.

Image Credit: OpSens Medical


Source: OpSens Medical

Dimension (mm O.D.) 0,20 mm OD
Pressure range - 300 mmHg to + 350 mmHg (relative to atmospheric pressure)
Precision ± 1 mmHg
Resolution 0.2 mmHg
Moisture drift (typical) < 3 mmHg/28 days
Thermal coefficient of Zero (typical) 0.2 mmHg per °C
Proof pressure 4000 mmHg
Operating temperature 10 °C to 50 °C
Operating humidity range 0-100%
EM/RF/MR/MW susceptibility Complete immunity
Cable length 1.5 meters standard (Other lengths available)
Optical connector SC standard
Cable sheathing Customer specifications
Signal conditioner compatibility:best suited for MiniP OEM board, LifeSens and ProSens; also compatible with other Opsens WLPI signal.

NOTE: The OPP-M product is intended to be incorporated into the customer’s host system but has not been authorized by the FDA or any other regulatory authority.