Online Design Form - LMA - Multi Shank

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General Specifications

The Multi-Shank LMA design is ideal for acute or chronic applications. Each shank can have up to 32 electrode sites, therefore multiple connectors may be needed. MicroProbes for Life Sciences may also employ the 36 contact Nano Omnetics connector, model A79022-001, which is also compatible with most headstage manufacturers.

You will need to specify the number of shanks (S) as well as the specifications associated with each prong. If no SS tube is required, which may be the case for chronic applications, then specify 0 for option (b).

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 - Single Shank 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-MS-n-a-Y-b-c-d-X-s-Rs-Ref-Gr
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Connector and Headstage

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Your custom design and layout sheet

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About Your Order

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If you will like to discuss any other technical aspect of your design please contact us via email at support@microprobes.com Thank you!
QMF 46b - Digital version - Master with QMS representative
Revision 05-040720