August 2014

Congratulations to Temi for winning the best student paper competition award at the IEEE EMBC'14. All of us here at the GT Bionics lab are proud of you!

GT Bionics participated in the 36th Annual IEEE Engineering in Medicine and Biology Conference in Chicago with 6 papers.

July 2014

A new story featuring the Tongue Drive System was published in the New Scientist. Here's the twitter link:

Congratulations to Dr. Mehdi Kiani for accepting a faculty position at Penn State. We at the GT Bionics lab look forward to you making us all proud. We'll miss you!

Congratulations to Dr. Mehdi Kiani for accepting a faculty position at Penn State. We at the GT Bionics lab look forward to you making us all proud. We'll miss you!

Congratulations to Temi for her EMBC'14 paper being selected among the Open Finalists for the student competition. Her paper was titled "Tracheal Activity Recognition Based on Acoustic Signals".

June 2014

Both Shurjo and Justin were awarded PURA (President's Undergraduate Research Award) salaries for the fall of 2014. Congratulations guys!

May 2014

Congratulations to Dr. Kiani and Dr. Lee for their great achievement: Graduating from GT-Bionics Lab with their PhD degrees!

March 2014

Temi was awarded a travel award at the Georgia Tech Research and Innovation Conference 2014. Temi’s winning abstract/poster was titled “A Wireless, Wearable Neckwear System for Health Monitoring”. Congratulations Temi!

Hyung-Min Lee successfully defended his thesis titled “A Power-Efficient Wireless Neural Stimulating System with Inductive Power Transmission.” Congratulatiosn Hyung-Min!

Mehdi Kiani was chosen for Sigma Xi PhD thesis awards which will be presented at the Georgia Tech Sigma Xi Awards Dinner on April 10th. Mehdi's thesis was entitled "Wireless Power and Data Transmission to High-Performance Implantable Medical Devices." Congratulations Mehdi!

January 2014

NIH-NIBIB coverage of the results of the TDS clinical study: Tongue-Driven Wheelchair Out-Maneuvers the Competition

December 2013

Dr. Mehdi Kiani successfully defends his Ph.D. thesis and starts a post-doc position at GT-Bionics Lab. Congratulations Mehdi!

November 2013

Georgia Tech coverage of the results of the TDS clinical study: Tongue Drive Wheelchair

Shepherd Center coverage of the results of the TDS clinical study: Tongue Piercing Put to Medical Use

Washington Post coverage of the results of the TDS clinical study: Tongue pierce lets the paralyzed drive wheelchairs

BBC coverage of the results of the TDS clinical study: Body piercing controls wheelchair

Radio Interview: BBC World Business Report

Results of the TDS clinical study is published in Science Translational Medicine (Impact factor > 10).

October 2013

Abner's proposal was accepted to the Wireless RERC’s App Factory on design and development for a proportionally tongue-controlled mouse. Congratulations Abner!

Hyung-Min's paper titled “A Power-Efficient Switched-Capacitor Stimulating System for Electrical/Optical Deep Brain Stimulation” was accepted for presentation at ISSCC 2014. ISSCC is the flagship of IEEE conference in solid-state circuits design and system-on-a-chip. The paper was ranked 2nd among all bio-related papers and 5th in all the papers submitted to the IMMD subcommittee. Congratulations Hyung-Min!

July 2013

Shurjo was awarded PURA (President's Undergraduate Research Award) for Fall 2013 from the Undergraduate Research Opportunities Program. Congratulations Shurjo!

May 2013

Hyung-Min and Hangue's paper was accepted to IEEE J. Solid-State Circuits.

April 2013

Mallika and Jessica won ORS's People's Choice Research Award. Jessica also won the Outstanding Service Award. Congratulations!

Mehdi's paper was accepted to IEEE Trans. Circuits Syst. II.

March 2013

Mehdi passed his PhD proposal.

February 2013

Xueliang's , et al., journal paper accepted for publication in IEEE TNSRE.

Hangue's 3rd journal paper was accepted for publication in ALOG.

Seung-Bae's , et al., journal paper accepted for publication in IEEE TBME.

December 2012

Hangue and Jeonghee won Best Demo at the 2012 IEEE BioCAS Conference. Congratulations!

November 2012

Watch Dr. Ghovanloo's 2012 TEDx Peachtree talk!

April 2012

Dr. Ghovanloo and Dr. Huo had one of the most cited papers in the Journal of Neural Engineering in 2010!


Multichannel Wireless Implantable Neural Recording System

A telemetry link from inside to outside of the human body is needed in biomedical implants especially when internal biosignals such as neural or muscular activities, or parameters such as pressure, temperature, flow, or concentration of different ions or proteins need to be continuously monitored. To improve implant safety, it should be able to run self-test routines, and report any malfunctioning blocks to the external part of the system. In addition, a closed-loop power regulation mechanism is needed to improve coupling insensitivity, and compensate for variations in the coils relative distance due to patient movements and coils misalignments. We are implementing a wideband and robust wireless multichannel data acquisition system using the Industrial-Medical-Scientific (ISM) band. We are aiming to develop a neural recording system capable of recording from more than 100 electrodes simultaneously without losing any piece of information.

Sponsor: National Science Foundation

Status: Active

Multi-Carrier Wireless Link for Implantable Biomedical Devices

Wireless link operating frequency, also known as the carrier frequency, is one of the most important parameters of a transcutaneous link for an implant, which affects all other system specifications. Traditionally, a single carrier has been used for (1) inductive power transmission, (2) forward data transmission from outside to the implanted device (downlink), and (3) back telemetry from the implanted device outward (uplink). In this project we are using three carrier signals at three different frequencies and amplitude levels: (a) low-frequency high-amplitude (fP ~ 10 MHz) for power transmission, (b) medium-frequency medium-amplitude (fFD ~ 50 MHz) for forward data link, and (c) high-frequency low-amplitude (fBT ~ 400 MHz) for back telemetry. These frequencies are close to optimal for the above three major functions and we can effectively separate many of the competing factors in the design of a wireless link. Therefore, we expect to achieve high performance in all of the aforementioned system requirements.

Sponsor: National Institute of Health, NINDS

Status: Active

Tongue Drive: A Tongue-Operated Environmental Control

Most brain-computer interfaces (BCI) are either too slow (EEG) or highly invasive (intracortical electrodes). Assistive technologies, on the other hand, can potentially offer effective means for people with severe disabilities to lead self-supportive and independent lives. Persons with tetraplegia as a result of causes ranging from high level spinal cord injury (C2-C4) to stroke generally find it extremely difficult to carry out everyday tasks. Modern assistive devices that can help them communicate their intentions to their environments will greatly benefit this group of severely disabled individuals. The goal of this project is to help this group of people to operate computers, electric wheelchairs, radios, phones, TVs, doors, motorized beds, and many other devices using their tongue motion.

Sponsor: Christopher and Dana Reeve Foundation, National Science Founadtion, and the NIBIB from the National Institute of Health.

Status: Active

Pharmaceutical Compliance Monitoring System

Patients forget to take their medicine, they may think side effects outweigh benefits, they may not believe the diagnosis, they may not understand the directions correctly, they may not know enough about the side-effects, they may use too much, or they may view the medicine as too costly. For whatever reason, even the best medications cannot cure diseases if the patients do not take them in the right doses at the right time. The topic of “pharmaceutical compliance” has become a key issue due to increasing difficulties in achieving point-of-differentiation and health economic objectives justifying premium pricing and reimbursement. We are working on a novel drug compliance monitoring device suitable for clinical and pharmaceutical trials. It can also be an integrated part of the marketed drug concepts.

Sponsor: N/A

Status: Active

Low-Power Head-Mounted Deep Brain Stimulator

Deep brain stimulation (DBS) is a treatments that is very effective for Parkinson’s disease, essential tremor, dystonia, epilepsy, depression, and obsessive compulsive disorder. Today’s DBS devices, which have stemmed from the pacemaker technology, are mostly implanted in the chest area with wires running under the skin to the cranial electrodes. These wires are found to be the major cause of failure in DBS systems. Design of a small-size low-power head-mounted DBS system is the ultimate goal of this project.

Sponsor: N/A

Status: Active

Wireless Neural Micro Stimulating System

Real-time interfaces between the external world and the human nervous system, known as neural prostheses, can restore sensory and motor functions that are lost due to injury or disease. Effective interfacing with the central nervous system for restoration of the sensory modalities such as vision requires application of electrical stimulation through high-density interconnects in well-controlled temporal-spatial patterns similar to the natural cognitive neural activity. Some of the major challenges are the implant size, microassembly, stimulation strategy for controlling a large number of sites, low power consumption, wideband wireless link, and safety. We are trying to address the above issues by pushing the limits in each one of these directions.

Sponsor: National Science Foundation

Status: Active