Biomedical Engineering

Biomedical Engineering Design II

Design Teams List

C.A.G.E. Biotech

The current medical devices used to administer fluids in emergency situations are intravenous therapy, or IV, bags. These IV bags are typically raised above body level and utilize gravitational force to allow the fluid to flow downwards. However, in emergency situations such as combat scenarios, the IV bag is not able to be efficiently elevated, thus rendering the IV bag less effective. Our team is focused on developing a lightweight, transportable, and automatic IV pump which can quickly and consistently deliver IV fluids in any scenario.

Project Abstract

CATO

Long QT syndrome (LQTS) is a rare heart disease estimated to affect at least 1 in 3,000 people and result in about 3,000 deaths within the United States each year. The syndrome can lead to tragic, unexpected death, most commonly in children. With LQTS, the heart's electrical system takes too long to recharge, due to abnormal repolarization of the ventricles. This abnormal delay in repolarization leads to a long delay between the depolarization and repolarization of the heart. Current approaches at diagnosing LQTS involve utilizing halter monitors for recording heart rhythms, after which analysis on the data is performed. There currently is no cure for LQTS. The CATO group seeks to utilize the large surface area provided by a vest to incorporate a multi-lead electrocardiogram (ECG) which will help map the electrical rhythms of the heart. The principles at work involve the acquisition of electrical signals and development of machine learning algorithms to decipher the patient specific QT interval. This will be imperative, as each patient’s heart functions differently, and the electrical activation may be affected by diet, level of activity, environment and/or medications used. This specificity of the patient’s heart limit will determine a threshold in which the algorithm will detect an abnormal heart rhythm. The threshold will be determined based on the patient mapping done under elevated but non-adverse heart arrhythmias. With implantation into a versatile vest, CATO is on the cutting-edge of predicting and alleviating LQTS symptomology.

Project Abstract

Consilio Prothesium

Our client, bobsleigh paralympian Sarah Fraizer-Kim, originally requested a device that would increase stability of her prosthetic leg (Ottobock X-3) while standing and/or walking on uneven icy terrains. Her current issue, which is constantly falling while on the track due to instability, occurs by her leg’s locking mechanism automatically disengaging after being inactive for some time, as well as the ice creeper attached to her leg not providing enough traction and her boot being loose on her prosthetic foot. As solutions to both sources of the issue we have designed two different components: a knee stopper and a modified ice-creeper. The knee stopper component works by being inserted onto the rear area of the Ottobock leg; due to its shape being molded to fit perfectly on that area of the leg, there is no room left for the knee area to bend; a metal pin is used to secure the component and avoid it from falling. To decrease its weight, but still have it being able to support around 300+ lbs, the main material for the stopper will be delrin. On the other hand, the modified ice creeper increases stability by providing a greater contact area with the terrain thanks to the spikes located at the bottom, front, and lateral sides of the foot, overall improving the grip the user has. To ensure a tight fit we will also add a supportive structure to the rear area and a belt mechanism around the ankle area; an inner enclosure will increase internal surface area of pylon to stabilize foot and foorwear. This project was constructed around a single client with specific needs; however, the final products were created to fulfill these needs in a generalized manner that could benefit a larger consumer pool.

Project Abstract

Dress Up

Wound healing is categorized into four overlapping stages: hemostasis, inflammation, proliferation, and remodeling. Throughout the wound healing process, oxygenation, infection, foreign body invasion, as well as negative variation to blood supply can be disrupted delaying healing. The Anaida Smart Bandage by Dress Up is a device which combats this as it is composed of four main components within the bandage to aid in post-operative wound healing. The four main components of the smart bandage include electrical stimulation, temperature sensing, pH change sensing, and a sericin hydrogel. These components will promote the proliferation and remodeling stages of wound healing, to soothe the area, stimulate cell growth to ultimately aid in scar reduction. This device is chosen for its alternative therapy and non-pharmaceutical properties, efficiency, adaptability, cost effectiveness, safety, functionality and biocompatibility to provide healing for vulnerable patients.

Project Abstract

JACKLD Unlimited

Eric Lindsay is a C5 quadriplegic who does not have fine motor function in his fingers and hands, he still retains limited gross motor function in his arms and wrists. He had issued a challenge to have a device created which allows him to pick up a phone charger cord and plug it into the wall. This led to the realization that a broader market for this type of device exists within patients whose pathologies include reduced finger tactility. Examples of disorders that encompass this are Parkinson's disease, arthritis, traumatic brain injury, stroke, spinal injuries, radial nerve damage, and more. Five concepts for the device were developed. These designs were compared and contrasted utilizing a House of Quality and then subsequently narrowed down to a single design after extensive risk and correlation analysis depicted by functional and customer requirements was performed. The chosen device has continued to be modified to fulfill the requirements. The final design utilizes Eric’s wrist movement which is transferred through a slide crank to a sliding plate which is attached to his index and middle finger by a nylon cord. The slide crank is the main mechanism that is translating the wrist actuation into a horizontal tension force on the nylon cord pinching the fingers. These two fingers are pulled onto the thumb which is held in place by a splint. This creates a pinching force of greater than 30 Newtons which allows Eric to pick up and manipulate cords or other small objects.

Project Abstract

KMCM

This minimally invasive surgical bone guide will be used to assist in a Lapidus procedure. Conventional Lapidus procedures require a large incision to generally reorientate the metatarsal bone in 2 planes using the surgeons intuition and experience as the guide. While adequate for most there are some patients that have more complex deformities and requires reorientation in 3 planes. Also, the surgical process leaves a large scar when healed. The device designed offers the surgeon the capability to orientate the metatarsal in 3 planes, remove the empirical nature of conventional Lapidus procedures, and reduce scarring.

Project Abstract

MAWK

In the United States, thoracic trauma-related deaths make up approximately 35% of deaths.1 Similarly, chest trauma attributed to blunt force accounts for approximately 80% of injuries sustained in motor vehicle collisions.1 In 2018, the thoracic devices' market was documented as $615 million with an expected CAGR of 5% by 2027.2 The most common injuries of thoracic trauma are: Pneumothorax and Hemothorax. These happen when air or fluid enters the pleural space, which then collapses the lung(s). Thus, after analyzing this information, the MAWK team concluded a need for a simple, efficient, compact device capable of detecting negative feedback when inserting a chest tube in a far forward position. This device will then ensure the correct placement has been achieved. Also, this device will limit the number of thoracic trauma injuries and related complications associated with such medical procedures. Also, customer requirements were considered based on surveys implemented and recorded by actual medical professionals and health care personnel. Therefore ensuring the device achieves the best outcome by decreasing the time of procedures and the efficiency and functionality of the current devices. The market provides the healthcare industry with complex instruments that take valuable time to prepare; this design targets this problem to decrease implementation time. This device is designed to achieve the customer requirements above as well as the technical requirements below. To make this device ideal in the current market, it needs to be inexpensive, easy to use, use a mechanism that detects negative feedback, maintain sterility before use, have smooth edges, and include a one-way valve to limit the damage to the patient. This design will be manufactured into a final prototype to show the functionality visually. The MAWK team will perform the following tests running three trails for each to ensure the device's functionality: Sensor Test, Insertion Force Test, Assembly Test, Insertion of Device Test, and Package Drop Test. In conclusion, this design will help healthcare personnel implement the chest tube device without any complications in procedures for chest tube insertion. MAWK was awarded a budget of $5,000 from the U.S. Air Force to assist in development of this design. With our sponsor's help, the U.S. Air Force, with Dr. Thomas Percival and Amber Mallory, Ph.D. as direct contacts, our project supervisor Laura Gaviria, Ph.D. and our UTSA mentors Teja Guda, Ph.D. and Hugo Giambini Ph.D, the MAWK team believes that this design will be an amelioration to current devices on the market.

Project Abstract

MECH Medical

The potential severity of injury due to accidents highlights a need for an affordable, non-invasive device that can alert fatigued commercial transportation drivers before they fall asleep at the wheel.​ A safety device that detects fatigue would be considered by our potential customers if it is affordable, low maintenance, compact, and complements existing safety platforms without being too distracting. Our proposed design is the Camera Alert System, which has a multiplexed design, using a python code and learning algorithm run on a Raspberry Pi Zero W that is connected to a camera to track the movement and presence of the pupils to detect symptoms of fatigue. MECM Medical has determined that the use of a camera with machine learning capabilities will provide the most reliability to the driver without compromising comfortability.

Project Abstract

RE-EN Biotech

The current coronavirus pandemic has raised awareness about personal sanitizing habits, and how pathogens can potentially remain on surfaces for several days. These pathogens can lead to nosocomial infections and community spread if no proper form of disinfection is performed. Therefore, there is a need to develop a compact and portable device that can sanitize surfaces autonomously in high traffic areas. The purpose of this device is to avoid the risk of contamination of diseases, infections and pathogens in busy areas. Finding a solution began with a customer survey to identify the most important needs of a sanitizing device. With the feedback and data acquired, four unique solutions were developed and assessed using the House of Quality (HOQ) Assessment to better understand how each solution fits the customers’ requests. After assessing all potential solutions, the final proposed device is a set of two pods named the Dual UVC Pods. The device features four UVC LED bulbs and a motion sensor on the surface of each pod. Each pod itself will be positioned on opposite ends of the surface that needs sanitizing. When motion is detected, the UVC lights activate for 10 seconds after motion is absent. If any motion is detected while the lights are on, they will deactivate to prevent UVC light exposure to humans. A prototype will first be produced. Quality assurance testing, safety testing, and environmental testing protocols will be taken into place to ensure errors and inconsistencies are revealed and fixed for the final working device. With this device being fully autonomous, current disinfecting protocols can be simplified for those staffed in areas of high exposure. Bringing this device to offices, schools, and homes all across the country is REEN Biotech’s response to this COVID-19 crisis.

Project Abstract

Rowdy Medical Industries

According to the CDC, approximately 1 in 54 children are affected by Autistic Spectrum Disorder (ASD) [1] and the compound annual growth rate (CAGR) of the ASD market is expected to reach 5.10% by 2025 [2]. Autistic Meltdowns are a symptom of ASD. These are caused by overstimulation of the senses. When reliable audiometric testing information can not be obtained, the child often has to be sedated for an Auditory Brainstem Response (ABR) test. Sedation can involve visits to an ENT for clearance and pre sedation blood work before actually undergoing the procedure. This can be a major financial and time strain on families. This project’s goal is to create a device that allows for standardized Audiometric Testing for children with ASD while avoiding autistic meltdowns by reducing tactile sensory stimulation on the head during audiometry tests in schools. This will be accomplished using the Sonic Fusion sound distribution system. The main concept of this design is the use of parabolic dish audio reflection transmitters. These discs allow for a focused, unidirectional sound wave to travel in any direction the dish faces. This concept reduces the amount of power required by the speakers, while also reducing audio dispersion that would taint any test results. Another advantage of this parabolic dish shape attached to flex-arms is that it allows the operator/user to adjust the distance and location of the speakers to accommodate any child regardless of height.

Project Abstract

Tranquility Therapeutics

The Triple P Relief is a drug-free and non-invasive device designed to alleviate the symptoms of a panic attack and to indicate to the patient when it has done so. The “Triple P” portion of the name is inspired by principles of the design including pursed lip breathing, pulse, and panic attacks. There are three primary components to the device. First, a breathing channel which is designed to influence the patient’s CO2 levels in order to alleviate physical symptoms. Second, the audio/visual indicator system which coaches the patient through a breathing regimen tailored to panic attack treatment which in conjunction with the breathing channel will alleviate symptoms of a panic attack. Lastly, the biofeedback component which exists to utilize a biomarker, specifically, the patient’s pulse, as an indication to the patient of panic attack recovery. Remaining components include a rechargeable battery, micro USB charging port, and a power button. The following sections will describe the device and its features in detail.