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

OpSens’ MEMS-based fiber optic pressure sensor OPP-M is designed to measure physiological pressure in people and animals.

These tiny 0.20 mm OD sensors are intended for use in catheters, guidewires, and other devices that monitor physiological pressure in a minimally invasive manner. Its novel, patent-pending design reduces thermal zero shift and moisture-induced drift.

The bare optical pressure sensors are intended for customers who need a very small sensor or want to create custom sensor packaging in-house for their products.

The OpSens OPP-M200 is ready for integration. Depending on the OEM applications requested by the client, encapsulation may be applied to the sensor tip and/or the full optical cable in a range of materials and sizes.

OpSens’ specialized OEM team works with users to tailor their requirements, reducing R&D costs and integration challenges. This reduces the entire cost of production and commercialization.

By combining OpSens WLPI signal conditioning technology (patent #7,259,862) with the inherent advantages of fiber optic, the OpSens OPP-M addresses the medical industry's needs for long-term accuracy, low-drift, repeatability, and high fidelity pressure measurements in the presence of harsh EM, RF, MR, and microwave fields.

Key features

  • MRI-safe and compatible
  • Excellent quality
  • Customized sensor package
  • Immunity to EMI/RFI
  • Extremely small
  • Low cost
  • Catheter integration is simple


  • Monitoring of physiological pressure, such as:
    • Urodynamic
    • Intrauterine pressure
    • Intracranial pressure
    • Intraocular
    • Pumping of the intra-aortic balloon
    • Blood pressure within the vessels
    • Applications for cardiac assistance
  • Catheter research and design for new product development
  • Design of guidewires (0.2, 5 mm OD model)
  • Pressure measurement during electrosurgery, MRI-guided treatments, and MW/RF applications

Bare Sensor: 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 FDA or any other relevant regulatory agency has not authorized the OPP-M product; instead, it is designed to be integrated into user host systems.