Project Revive Band (A METHOD TO REROUTE BLOOD DURING CPR FROM THE FEMORAL ARTERY TO THE BRAIN IN PEDIATRIC PATIENTS TO INCREASE BRAIN PERFUSION)

Voiceover

Presenter(s)

Jimmy Tangchittsumran, Leslie Fredrickson, Karl Larson, Danielle Piper, Devon Horton

CU Denver Undergrad Research Program

McNair Scholars

Supplementary Materials

PDF Slides for Project Revive Band Presentation: https://drive.google.com/file/d/14lTzqivFPQcaeHqe-asFkBR5MW5n69or/view?usp=sharing

Grant Proposal for Project Revive Band: https://drive.google.com/file/d/17j6Z8RTDHuc2Z6arlTtqn_DKykr-fl5A/view?usp=sharing

Transcript for Presentation: https://drive.google.com/file/d/1wtWXS3HO5-_g0fQFt88G4azg1YFz1nhL/view?usp=sharing

Abstract or Description

A METHOD TO REROUTE BLOOD DURING CPR FROM THE FEMORAL ARTERY TO THE BRAIN IN PEDIATRIC PATIENTS TO INCREASE BRAIN PERFUSION

Leslie Fredrickson, Bioengineering, College of Engineering, Design and Computing

Devon Horton, Bioengineering, College of Engineering, Design and Computing

Karl Larson, Bioengineering, College of Engineering, Design and Computing

Danielle Piper, Bioengineering, College of Engineering, Design and Computing

Jimmy Tangchittsumran (AS), Bioengineering, College of Engineering, Design and Computing

Faculty Mentors

Craig Lanning (MS), Bioengineering, College of Engineering, Design and Computing

Mary Bevilacqua (MS), Bioengineering, College of Engineering, Design and Computing

Dr. Daniel Ehrmann (MD), Children's Hospital Colorado

Dr. Taufiek Rajab (MD), Children's Hospital Colorado

Activity type: Undergraduate Human-Centered Need-Based Design

During CPR, pediatric patients in the ICU have excess blood flow to the lower extremities that could be used for the brain, increasing risk of brain damage. A cost-efficient, portable and size-adjustable device was developed to temporarily restrict blood flow to the legs, in order to force higher volumes to the brain. This device is made of a metal 3D printed buckle and polypropylene straps. The straps are long enough to allow for the device to be adjustable in size and fit a variety of patient bodies. The straps loop around both legs and thread through a specially designed buckle before being pulled tight and secured with Velcro. The straps are further tightened with a windlass device, which is secured by the buckle. Testing was completed on leg models made with two-inch multipurpose foam, which is comparable to the density of a leg. The device can be applied to the legs within 15 seconds and stay cinched for 30 minutes. Once applied, it decreases the diameter of each leg by 15% with an average of 1.67 twists of the windlass. When no longer needed, it can be removed with less than 6 lbs of force. Overall, this device has the possibility to lower rates of brain trauma due to lack of blood perfusion by adjusting blood volume locality from the lower extremities to the brain.

Comments

Rebecca Han4 years ago

Hello, this presentation was very interesting. I can see this device or a similar device being significant for hospital settings but also for first responders in the field. I had a few questions about the device. The prototype model seems similar to tourniquets that are currently being used, I was wondering what the differences were between this device and devices with similar blood flow restricting capabilities. I was also wondering if there were considerations for compression devices compared to this device in restricting but also promoting blood flow back to the brain?
Thank you for the presentation!

• • 1 comment

Jimmy Tangchittsumran4 years ago

Thank you for the feedback and question. Our device is similar to a tourniquet in that it restricts blood flow, but it does so on both legs simultaneously when the strap is pulled. As a result, less time is wasted trying to unfurl and work with two separate tourniquets that are not designed for this specific purpose. The idea is that an emergency situation occurs and time is essential, so this device makes it easier for less operators needed and quicker application time. Our device is also not designed to be used for hours at a time, (for short term/immediate emergency and transport to hospital) so that production of the device is comparatively less costly than traditional tourniquets. Additionally, it's portable and can fold into a small container that would allow it to be easily stored and accessed in a variety of situations.