Posted in | Pressure Sensors

OPP-M200 (Bare) - MEMS-Based Fiber Optic Pressure Sensor

The MEMS-based fiber optic pressure sensor OPP-M from OpSens is intended for measuring physiological pressure in humans and animals.

These minuscule 0.20 mm OD sensors are designed to be used in catheters, guidewires, and other devices that allow for minimally invasive detection of physiological pressure. Its innovative, patent-pending construction minimizes thermal zero shift and moisture-induced drift.

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

OpSens’ OPP-M200 is integration ready. Encapsulation can be applied to the sensor tip and/or the entire optical cable in a variety of materials and sizes, depending on the OEM applications required by the customer.

OpSens' dedicated OEM team works with you customize for your needs, which greatly minimizes R&D expenditures and integration difficulties. This lowers the overall cost of manufacturing and commercialization.

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

Key Features

  • Ultra miniature
  • EMI/RFI Immunity
  • Low cost
  • Simple catheter integration
  • Safe and compatible with MRI
  • High quality
  • Personalized sensor package


  • Physiological pressure monitoring, such as:
    • Intravascular blood pressure
    • Urodynamic
    • Intra cranial pressure
    • Intrauterine pressure
    • Intraocular
    • Intra-aortic balloon pumping
    • Cardiac assist applications
  • Catheter research and new product development design
  • Measurement of pressure during electrosurgery, MRI-guided therapies, and MW/RF-related applications
  • Guidewires design (0.2, 5 mm OD model)

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 OPP-M product is not FDA — or other relevant regulatory body-approved; however, it is intended to be incorporated into customer host systems.

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