Soterix 1x1 Limited Total Energy (LTE) tDCS Device
Limited Total Energy for tDCS (LTE-tDCS) was developed exclusively by Soterix engineers. LTE limits the voltage and power required for tDCS through the use of adaptive ramp-up stimulation and intelligent energy management for currents up to 1.5 mA. The Soterix Medical 1×1 tDCS-LTE includes the most advanced transient protection in the industry, an electrode becoming temporarily disconnected, for example due to subject movement. In addition, should resistance increase to atypical levels, LTE-tDCS will automatically reduce the applied current so as to maintain a low voltage.
Soterix Medical tDCS-LTE is a unique system that provides an additional safety margin, without compromising efficacy, when stimulating susceptible subjects.
Proven to Limit Power During tDCS
The difference between conventional tDCS and tDCS-LTE is that conventional tDCS applies a fixed ramp slope while tDCS-LTE varies ramp intensity to limit power delivery. Soterix tDCS-LTE also limits power transients that might occur during tDCS due to sudden changes in resistance. tDCS-LTE further enhances abort-protection features already enabled on all Soterix 1x1 devices. Finally, tDCS-LTE alerts the operator when a high-power condition occurs and automatically activates LTE to reduce power consumption.
Focus on the subject, not the device with Open-Panel controls
The Soterix Medical Open-Panel control system was developed to allow simple dose setting in seconds. With easy-click control knobs to set stimulation duration and intensity, and back-lit status display visible even at a distance. SmartSCAN provides a constant indication of electrode quality and with Soterix Medical LTE automatically managing dose, allows you to focus on your subject from set-up, to stimulation, to ramp-down. No drop-down menus. No hidden settings. No external computer. Design for simple and clear clinical trials with Soterix Medical Open-Panel.
Device Features
Soterix Medical 1×1 features were optimized by our biomedical engineers consulting closely with leading TBI rehabilitation clinics and pediatric neurologists. Designed for simple set-up, provide intelligent warning of a fault condition, and allow for adjusting for patient comfort , these features facilitate reliable and tolerated tDCS. The Soterix Medical SmartScan feature is central in all Soterix tDCS devices to allow reliable set-up and monitoring. The Relax, Tickle, and TrueCurrent innovations were developed for the 1×1 tDCS platforms. Limited Total Energy (LTE) is available exclusively on the 1×1-LTE platform.
LTE: Limited total energy provides adaptive ramp-up stimulation technology to limit the required voltage.
Advanced transient protection, should an electrode become temporarily disconnected. LTE-tDCS will automatically reduce the applied current so as to maintain a low voltage should resistance increase to atypical levels.
Smartscan: Provides a continuous visual indication of electrode quality before and during stimulation.
From pre-stimulation set-up, to during stimulation monitoring, to post-stimulation confirmation, the Soterix Medical SmartScan feature provides an intuitive and clear indication of electrode contact quality. Use the SmartScan during set-up to adjust electrodes and head-gear for optimal fit. During stimulation, SmartScan provides a constant indication of electrode quality and can be monitored during adjustments (e.g. addition of saline to drying electrodes). After stimulation, SmartScan confirms a successful trial. Because “resistance” is not meaningful for tDCS, SmartScan was developed by Soterix Medical engineers to provide clinical investigators with a simple to read indication of contact quality.
True Current: Clearly indicates the actual current supplied at the moment.
What other devices promise, the 1x1 tDCS delivers. The back-lit display can be monitored during stimulation ramp up to confirm that the targeted current intensity is achieved.
Tickle: May be used to supply a very weak current prior to tDCS to help condition the skin.
Tickle may be used to both condition skin prior to tDCS and for naïve subjects who are anxious about stimulation. A custom on-off waveform pattern generates mild and brief sensation under electrodes.
Relax: Allows the clinician to use a simple sliding bar to transiently decrease the current from the pre-set value, for example, based on subject feedback.
Based on feed-back from leading clinical centers, Soterix Medical exclusive feature, RELAX, accommodates subjects who may be anxious when stimulation is initiated or during the course of stimulation. The RELAX slider may be adjusted from full to reduced intensity based on subject perception without interrupting or aborting stimulation.
Auto Sham: Simple and intelligent sham waveforms.
An automatic stimulation sham feature that is engaged with a simple switch. Auto-sham automatically calculated and produces a sham waveform based on the indicated “real” waveform. For example, for a corresponding real waveform of 1.5 mA and 10 minutes. auto-sham will provide a ramp up/down to 1.5 mA at the start of of stimulation, and again after 10 minutes, with the timer automatically adjusted such that the total run time us exactly matched to the real case. Based on the Soterix Medical Open-Panel design principle: with no complicated programming or hidden drop-down menus required.
