The LMA has been developed to assist the neuroscience community with a probe that provides multiple contacts along one or more shanks.
The LMAs are fabricated using Polyimide insulated Platinum/Iridium wire that is uniquely threaded through Polyimide tubing. Holes in the Polyimide tube are formed by sophisticated laser drilling at precise intervals providing electrode spacing down to 75 microns.
There are 3 different configurations of the LMA in order to satisfy the varying experimental protocols for acute as well as chronic applications. These different configurations have been identified by designating the model numbers as follows:
|LMA||a single shank with up to 24 contact sites|
|LMA-MS||having up to 4 shanks in the same plane with up to 24 contact sites on each shank OR having up to 16 shanks in a 3D array configuration (4x4) with up to 24 contact sites on each shank|
|LMA-FC||which is similar to the LMA-MS except that the individual probes or probe pairs are tethered by a flexible cable design exclusively for chronic applications|
The LMA single shank design has been designed to offer extreme versatility for both chronic and acute applications. Because of its rugged design characteristics it can be used for many experimental trials depending on the care in handling and following the cleaning instructions after each use. The LMA uses only biocompatible and it is very well suited for chronic applications as well.
The LMA-MS multi-shank design allows the researcher to specify up to 4 single shanks in the same plane or 16 shanks in a 3D array configuration. The shanks in the array can have the same design characteristics as the single shank design. The juxtaposition of each shank within the array is determined by the user specifications. It can be used for both acute and chronic applications as well.
The LMA-FC is also a multi-shank design; however, the probes or probe pairs are tethered by flexible silicone encapsulated cables, which will allow the individual shanks or pairs to be semi “floating” in brain for chronic applications.
|12.5 µm||198 µm||198 µm||198 µm||218 µm||218 µm||238 µm||262 µm||300 µm||300 µm||330 µm||330 µm|
|25.0 µm||198 µm||198 µm||218 µm||238 µm||238 µm||268 µm||300 µm||330 µm||360 µm||410 µm||410 µm|
|37.5 µm||218 µm||218 µm||238 µm||238 µm||268 µm||300 µm||330 µm||330 µm||410 µm||460 µm||460 µm|
|50.0 µm||218 µm||238 µm||268 µm||300 µm||330 µm||360 µm||410 µm||410 µm||460 µm||510 µm||560 µm|
|Single probe LMA design for acute and chronic recording or stimulation. User may specify from 4 to 24 contact sites.|
|Multiple Probe LMA-FC design for chronic applications in which the probes are tethered by a flexible lead.|