Linear Microelectrode - Flexible Cable Array Online Design Form

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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

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

1. Metal type and electrode site diameter:(*)

This field is required

2. Number of recording sites per shank(*)

Value out of range.

3. s: Number of shanks(*)

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4. n: Total number of sites

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5. Rs: Distance between shanks(*)