Implantable Light-Emitting Diodes


Figure: Fiber-Coupled Implantable LED (FCLED). A blue EZ500 LED coupled to a 4-mm, 270-μm diameter fiber for depth illumination.

Our Implantable Light-Emitting Diodes (ILEDs) operate with our implantable transponders to provide optical stimulation for optogenetic experiments in mice and rats. Our Surface-Mount Light-Emitting Diodes (SMLEDs) fasten to the surface of an organ, the surface of the skull, or shine through a hole made in the skull. They come in red, green, and blue. Our Fiber-Coupled Light-Emitting Diodes (FCLEDs) are designed to be anchored to the skull and provide illumination deeper in the brain. They come in green and blue. All ILEDs are equipped with sockets that accept the pins at the end of the leads provided by the implantable stimulator.

The SMLEDs are light-emitting diodes with a blob of clear epoxy on top of them. The green and blue LEDs require a driving voltage of roughly 3.0 V, while the red LED requires only 2.2 V. The FCLEDs are a light-emitting diode with a fiber-optic light guide glued to its surface. The light guide carries roughly half the LED's light a to a tapered glass tip, where the light is emitted in all directions. The light guide can be four to ten millimeters long. It allows us to deliver optical stimulation to tissue several millimeters below the surface.

System Description

Implantable Stimulator-Transponder (IST): Miniature, implantable, battery-powered, stimulator.
Stimulator Manual: User manual for implantable stimulators and lamps.
ILED Flyer: Compact presentation of our implantable lamps and stimulators.
Data Acquisition (DAQ): Instrument control and data acquisition hardware and software.
Subcutaneous Transmitter (SCT): Miniature, implantable, battery-powered, telemetry sensor.
Animal Cage Camera (ACC): Synchronous, Power-over-Ethernet, telemetry-compatible video camera.
Telemetry Manual: Detailed description of the telemetery system.
Optogenetic Demonstration: Videos and EEG recordings from optogenetic stimulation of a mouse.
Price List: A list of devices and their prices.
Forums: Message boards for customer support.

Device Manuals

Implantable Stimulator-Transponder (A3041): An implantable stimulator with synchronizing signal and acknowledgement.
Implantable Light-Emitting Diode (A3036IL): An implantable light-emitting diode with and without light guide.
Telemetry Antennas (A3015): Telemetry antenna with coaxial socket.
Faraday Enclosures (FEx): Faraday enclosures to block radio-frequency interference.
Canopy Feedthrough (A3039): Coaxial and Ethernet feedthroughs for our Faraday canopies.
Telemetry Control Box (TCB): Command transmitter and telemetry receiver with PoE interface.
OSR8: Open-Source Reconfigurable Eight-Bit Microprocessor (OSR8) deployed in the IST.

Software Guides

Stimulator Tool: The software interface by which we control ISTs.
LWDAQ Software: Network-based data acquisition and analysis software.
Receiver Instrument: Software that downloads telemetry data.
Neurorecorder Tool: Software that records telemetry signals to disk.
Neuroplayer Tool: Software that reads, analyzes, and translates recorded signals.
Startup Manager: Software component that starts telemetry with one click.
Recording and Playback: Video introduction to the Neurorecorder and Neuroplayer.
Telemetry and Video: Video introduction to synchronous telemetry, stimulus, and video.


Modified: This page was last modified on 14-Jan-25 04:15:44pm