°AirRay Grid Electrodes

Our Grid and Strip electrodes are designed to provide an electrical interface to the central nervous system. They are the ideal solution for ECoG or interoperative recordings. All contacts are able to record and stimulate.

We offer various designs for your specific application:

  • Number of Contacts
  • Outline and shape of the Grid or Strip
  • Contact density
  • Thickness, Stiffness, Softness

Micro 4 x 8 Square 45°

  • 32 contacts
  • micro-contacts | 1 mm Diameter
  • 20×20 mm
  • contact arrangement shifted by 45°

4 x 16 Finger

  • 64 contacts
  • 1 mm Diameter
  • 60×40 mm
  • equal contact spacing
  • slit contours 
  • ideal to adapt to the convex shape of the brain

5 x 16 Finger

  • 80 contacts
  • 1 mm Diameter
  • 60×32 mm
  • equal contact spacing 
  • slit contours 
  • ideal to adapt to the convex shape of the brain

Micro 8 Hexagonal

  • 8 contacts
  • 0.3 mm Diameter
  • 3.4×7 mm
  • hexagonal contact arrangement

Micro 16 Hexagonal

  • 16 contacts
  • 0.3 mm Diameter
  • 5.7×7.5 mm
  • hexagonal contact arrangement

Micro 32 Hexagonal

  • 32 contacts
  • 0.3 mm Diameter
  • 7×8.5 mm
  • hexagonal contact arrangement

Suture Sleeves

Designed to anchor the implanted electrode wires within surrounding tissue. Key benefits of our Suture Sleeves include:

  • Secure Ligature: Prevents electrode movement and displacement
  • Radio-opaque: Clearly visible in all kinds of X-rays
  • Biocompatible: Safe for use in biological environments

Custom Design

Thank you for your interest in a custom design from CorTec.

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Get a Quote

We’re happy to help you realize your next project. Whether it is a complete implantable system design, an electrode or another component.

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SPECIFICATIONS

FEATURE 

Recording channels 

Sampling rate 

Sampling dynamic range 

High pass filter cut-off 

Low pass filter cut-off 

Amplifier band pass gain 

Band pass roll-off 

Reference


Stimulation 

Stimulation channels 

Current 

Current source 

Pulse width 

Power supply 

Wireless data transmission 

Closed Loop latency

VALUE

32 

1 kHz 

16 bit (74 nV smallest increment) 

ca. 2 Hz 

325 Hz 

Adjustable: 100-750 

20 dB/dec 

Any (subset) of the recording channels selectable by software or one dedicated hard-wired additional contact 

Current-controlled, biphasic, rectangular, asymmetric stimulus pulses (cathodic amplitude with pulse width followed by an anodic counter pulse of 1/4x amplitude and 4x pulse width) 

 32 

Max. -6 mA / +1.5 mA (24 µA increments) within

 compliance voltage range of -11 V to +5 V 

Can be directed to any of the 32 electrode contacts 

Negative phase: 10 µs – 2,500 µs

Wireless inductive, 120-140 kHz

Bi-directional, radio frequency in 2400-2483.5 MHz band ≤ 40 ms