Online Design Form - LMA - Flexible Cable

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General Specifications

The LMA with the Flexible Output Cable has been designed specifically for chronic applications. The fine leads which extend from the Polyimide shank are coiled together and coated with a silicon elastomer, allowing the shank to virtually float in the brain. You will need to specify the number of shanks, (S).
Outside Diameter in microns of the Polyimide Probe
  4 6 8 10 12 14 16 18 20 22 24 32
12.5 µm 198 198 198 218 218 218 218 241 241 264 264 300
25 µm 198 198 218 218 241 241 264 264 292 325 325 375
37.5 µm 218 218 241 241 264 264 292 325 325 370 370  
50 µm 241 264 292 325 325 370 370 410 454 505 560  
Reference measurement: micron (µm)
Outside Diameter of the optional Stainless Steel
  4 8 16 24 32
12.5 µm 0.016" OD 0.016" OD 0.018" OD 0.020" OD 0.020" OD
25 µm 0.016" OD 0.016" OD 0.018" OD 0.020" OD 0.025" OD
37.5 µm 0.016" OD 0.016" OD 0.020" OD 0.025" OD  
50 µm 0.016" OD 0.018" OD 0.025" OD 0.0335" OD  
Any number of channels in between will use the larger diameter tubing. For example, a 12 channel LMA with 12.5um contact sites will use a 0.018" OD tubing.
Impedance value chart
Diameter Impedance
Typical Impedance @ 1 Kilohertz
12.5 µm Pt/Ir 0.5 to 0.8 MΩ
25.0 µm Pt/Ir 0.3 to 0.5 MΩ
37.5 µm Pt/Ir 0.2 to 0.4 MΩ
50.0 µm Pt/Ir 0.1 to 0.3 MΩ
LMA - Single Shank
LMA - Flexible Cable dimentions
  • a = Length of polyimide tube (15 mm max. for 12.5 µm wire)
  • b = Length of Stainless or Microfill Tube.
  • d = Distance between contacts.
  • n = Number of recording sites.
  • X = Diameter of polyimide tube (refer to the table 1).
  • Y = Diameter of Stainless Steel tube is approx. 50% larger than Polyimide tube.

Design Specifications

Model LMA-FC-n-a-Y-b-c-d-X-s-L-Rs-Ref-Gr
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