Gold University of Minnesota M. Skip to main content. University of Minnesota.
Driven to Discover.
DMD

Advances in Medical Devices 1

Thursday, April 18, 8:00-10:00
Meridian Ballroom 1, Graduate Minneapolis

Moderator: Matthew Johnson, University of Minnesota

"A Method and Mechanism for Harvesting Intact Autograft for Osteochondral Transplantation" (DMD2019-3260)
Pradipta Biswas, PhD Student, Mechanical Engineering, University of Central Flordia

"Novel Bio-Synthetic Graft for Tracheal Reconstruction in Pediatric Patients with Congenital Tracheal Stenosis: In Vitro Studies of Axial, and Bending Biomechanics" (DMD2019-3226)
Teja Karkhanis, MEng. Biomedical Engineering, Texas A&M University

"Wearable Non-Invasive Neuromodulation Device for the Symptomatic Treatment of the Voice Disorder Spasmodic Dysphonia" (DMD2019-3219)
Arash Mahnan, PhD Student, Human Sensorimotor Control Lab, University of Minnesota

"Advancing Deep Brain Stimulation Lead Technology" (DMD2019-3312)
Julia Slopsema, PhD Candidate, University of Minnesota
Robert Cass, Process Development Engineer III, Heraeus Medical Components

"Measurement and Comparison of Multi-Electrode Placement for Bioelectrical Impedance Analysis" (DMD2019-3265)
JungHun Choi, Assistant Professor, Georgia Southern University

"Quantification of Spasticity in Upper-Arm Muscles Using the PVRM (Position, Velocity and Resistance Meter)" (DMD2019-3279)
Seung Yun Song, PhD Candidate, University of Illinois Urbana-Champaign


Speaker Bios:

Pradipta Biswas, PhD Student, Mechanical Engineering, University of Central Flordia
Pradipta Biswas is perusing Ph.D. in Mechanical Engineering and M.Sc. in Biomedical Engineering in the University of Central Florida. His current research focuses in Orthopedics and a tool for extracting osteochondral cartilage in the Interventional Robotics Lab. In general he is interested in Interventional Technology, Robotics and CAD and wants to develop biomedical tools.

Teja Karkhanis, MEng. Biomedical Engineering, Texas A&M University
Teja Karkhanis graduated with a Master’s in Biomedical Engineering from Texas A&M University. As a graduate student, her work focused on tissue biomechanics and pediatric device design.

Arash Mahnan, PhD Student, Human Sensorimotor Control Lab, University of Minnesota
Arash is a Ph.D. student in Biomechanics and Neuromotor Control at the Human Sensorimotor Control Lab, University of Minnesota. His work focuses on design and development of medical devices and sensorimotor evaluation and training. Arash is a biomedical engineer by training and interested in incorporating his engineering expertise to advance clinical science and to bridge the gap between these disciplines.

Julia Slopsema, PhD Candidate, University of Minnesota
Julia is a Biomedical Engineering PhD candidate in the Neuromodulation Research and Technology Lab (Matt Johnson, PhD) at the University of Minnesota. Her research focuses on developing programming strategies for neuromodulation technologies including Deep Brain Stimulation and Spinal Cord Stimulation.

Robert Cass, Process Development Engineer III, Heraeus Medical Components
Robert is working on multiple neuromodulation product development projects in an engineering role. His focus is on design and manufacturing innovations for directional DBS leads. These innovations are directed towards creating new devices that enable research universities and finished device customers to progress research in this field.

JungHun Choi, Assistant Professor, Georgia Southern University

Seung Yun Song, PhD Candidate, University of Illinois Urbana-Champaign
Seung Yun (Leo) Song is a PhD candidate studying Mechanical Engineering and Science in University Illinois at Urbana-Champaign. Working with Professor Elizabeth Hsiao-Wecksler and Christopher Zallek, MD, his main research focus is on design and clinical testing of wearable biomedical devices to help clinicians make objective assessment of muscle tone.


Presentation Abstracts:

"A Method and Mechanism for Harvesting Intact Autograft for Osteochondral Transplantation" (DMD2019-3260)
We proposed a novel graft removal mechanism to harvest a personalized autologous graft of any shape and size. Our method involves drilling a profile similar to the effected region on the donor site and slicing off the desired cartilage-bone graft from its root to harvest it. We developed a new graft removal mechanism capable of inserting a flexible saw parallel to the transverse plane and slice the graft parallel to the coronal plane to extract a donor-graft for autografting procedures.

"Novel Bio-Synthetic Graft for Tracheal Reconstruction in Pediatric Patients with Congenital Tracheal Stenosis: In Vitro Studies of Axial, and Bending Biomechanics" (DMD2019-3226)
Congenital Tracheal Stenosis (CTS) is a rare birth defect requiring surgical interventions when it affects more than 30% of the trachea. Slide tracheoplasty, the current standard of care, is associated with re-interventions including need for intraluminal stenting leading to increased airway infections. Our group has developed a novel Bio-Synthetic Graft to repair long segment defects in CTS patients. This presentation discusses the results of preliminary bench performance tests conducted on Bio-Synthetic Graft reconstructed lamb tracheas.

"Wearable Non-Invasive Neuromodulation Device for the Symptomatic Treatment of the Voice Disorder Spasmodic Dysphonia" (DMD2019-3219)
Spasmodic dysphonia (SD) is an incurable voice disorder that leads to strained or choked speech. Preliminary work showed that voice quality in SD improved by applying vibro-tactile stimulation (VTS) over the larynx as a non-invasive form of neuromodulation. This presentation describes the design and development of a wearable device with the aim of improving voice quality in SD individuals. In addition, preliminary data about the effectiveness of the device for treating the voice symptoms associated with SD will be discussed.

"Advancing Deep Brain Stimulation Lead Technology" (DMD2019-3312)
The efficacy of deep brain stimulation (DBS) is dependent on selective stimulation of therapeutic axonal pathways within the brain. Numerical modeling has demonstrated that DBS leads with four radially segmented electrodes provide a balance of directional targeting while minimizing the number of contacts. Here, we present a 4x4 lead (16-channels) with the same form factor and materials as FDA-approved DBS leads. Electrode impedance spectroscopy was performed on these novel leads showing reliable impedances before and after implantation within the brain.

"Measurement and Comparison of Multi-Electrode Placement for Bioelectrical Impedance Analysis" (DMD2019-3265)
The purpose of this examination was to determine a) how bioimpedance scanning generates data about the human body and b) compare the Bodystat Multiscan 5000 and the Skulpt Chisel. The results display an inverse relationship between resistance/reactance and muscle quality, and a direct relationship between resistance/reactance and percent body fat.

"Quantification of Spasticity in Upper-Arm Muscles Using the PVRM (Position, Velocity and Resistance Meter)" (DMD2019-3279)
The talk focuses on a newly developed measurement device (Position, Velocity, Resistance Meter – PVRM) that quantifies different levels of abnormal muscle tone such as spasticity and rigidity. The first portion of the talk covers the design and validation of the accuracy of the PVRM, and the second portion covers the preliminary clinical study using the PVRM on patient population with varying levels of abnormal muscle tone. Future steps and challenges of technological intervention in medical community will also be discussed.


Related Sessions:

Advances in Medical Devices 2
Advances in Cardiovascular Medical Devices

Registration Opens Jan 2020


Stay connected with the DMD Conference through LinkedIn Twitter Facebook YouTube