Why and How in Engineering Design

Cable Management for iKMC : Designing for Simplicity, Comfort, and Clinical Efficiency

Our first project focuses on developing a cable management system to support integrated Kangaroo Mother Care (iKMC), a lifesaving approach that promotes continuous skin-to-skin contact between mothers and their newborns.

In many hospitals especially those with limited resources the cables connected to monitoring devices and life-support equipment often become tangled or obstruct care, reducing safety and comfort for both mother and infant.

To tackle this challenge, we conducted thorough research and observation, concentrating on:

  • The number, type, and routing of cables used in iKMC environments

  • Existing cable organization solutions and their shortcomings

  • Materials such as fabric, Velcro (Velcro), and support structures suitable for clinical use

Now, in the design phase, we are creating multiple concept models using SolidWorks. These models will be 3D printed for evaluation. Our approach is iterative developing a range of functional prototypes, testing them, and refining the design to achieve the best balance of usability, safety, and comfort.

Some concepts under consideration include:

  • A tray mounted to a support structure or chair to organize and route cables

  • Velcro-based systems that allow flexible attachment and repositioning

  • Cloth pins with cable-holding holes, offering lightweight and reusable solutions

  • A garment-integrated solution with built-in cable channels for wearable convenience

Each concept is designed with clinical workflows, mother-and-child movement, and easy cleaning in mind. We’re excited to move into prototyping and testing in the coming weeks.


Giant Cheetos Machine : Troubleshooting, Testing, and Thermal Observation

Our second project involves troubleshooting a Giant Cheetos extrusion machine that was producing burnt products and frequently jamming.

To better understand the machine’s behavior, we attached three thermocouples along the extruder barrel to monitor temperature changes during operation. We also used a tachometer to measure the motor’s rotational speed.

Key observations include:

  • High friction between the screw and certain dies, causing excessive heat and material blockage
  • Some dies stuck and halted the motor, while others fit better but still failed to produce consistent output
  • A sample mixture of 50% water and 50% grits extruded briefly, but the motor jammed again

From these findings, we identified critical issues:

  • Moisture content in the grits is crucial too little water leads to burning and blockages
  • The 5HP motor running at 3450 RPM is too fast for extrusion and needs to be reduced to a safer speed (350 to 500 RPM)
  • A small gap between the screw and die may contribute to inconsistent material flow

Next steps include:

    • Developing methods to safely control or reduce motor speed
    • Conducting further tests with different moisture ratios to find the optimal mix
    • Making mechanical adjustments to improve screw-die interaction

Beyond the Projects: Cooking Together

Apart from our technical projects, we had a wonderful opportunity to cook and share a meal together with fellow interns. This experience was a great way to strengthen our team spirit and learn the importance of collaboration and communication in a work environment.

Cooking together helped us bond beyond our daily tasks, exchange ideas in a relaxed setting, and recharge from the pressures of work.


Reflection

These past two weeks have reinforced that engineering is not just about building things it’s about deeply understanding real-world problems and solving them with empathy and creativity.

Whether improving cable safety in neonatal care or troubleshooting mechanical and thermal challenges in food extrusion, these projects have strengthened my design, problem-solving, and user-centered thinking skills.

This experience reminds me why I chose biomedical engineering: to create practical solutions that improve lives.

My Internship Story at Rice360

My Journey to Rice University: A Grateful Beginning to an Unforgettable Internship

My name is Edward Lowassa Ndonyo, a recent graduate from Muhimbili University of Health and Allied Sciences (MUHAS) in Tanzania, where I earned my Bachelor’s degree in Biomedical Engineering with First Class honors. In addition to my biomedical training, I also have practical experience in electrical installation, CCTV systems and lighting decoration and design. I’m also skilled in Microsoft Office, MATLAB, programming languages like C, C++, Python, JavaScript, as well as HTML, CSS, Django for web development and AutoCAD for electrical design.

📘 Visual overview of my final year project (click to expand Project summary)

Project Title: Management System for Prenatal, Postnatal and Pediatric Clinic

Project Overview:
This project, developed by Edward L. Ndonyo at Muhimbili University of Health and Allied Sciences, presents a comprehensive web-based management system designed to digitize and streamline healthcare services for prenatal, postnatal, and pediatric clinics in Tanzania. The system addresses critical challenges in Tanzania’s manual healthcare system, where over 80% of maternal deaths are attributed to inadequate maternity care and preventable complications.

Problem Statement and Motivation:
Tanzania’s healthcare system currently relies on paper-based record keeping, which creates significant barriers to effective patient care. The manual system suffers from multiple limitations including data accessibility issues, increased vulnerability to errors, difficulty in tracking patient records, challenges in statistical analysis, and inability to implement automated reminders for appointments. With 2.6 million infant deaths annually worldwide (80% preventable) and 800 daily maternal deaths from preventable causes, the need for an efficient digital solution is critical.

System Architecture and Technical Implementation:
The system was developed using Django 4.2 as the backend framework, with HTML5, CSS3, and JavaScript (ES6+) powering the frontend interface. The architecture implements a Relational Database Management System (RDBMS) with carefully designed entity relationships including one-to-many and one-to-one connections between patients, visits, medical records, and healthcare providers.

  • Database Design: Structured to efficiently manage, validate, and secure patient data with unique identifier generation for each child.
  • User Interface: Intuitive web-based interface designed for healthcare providers with minimal technical training.
  • SMS Integration: Infobip API integration for automated appointment reminders and notifications.
  • Analytics Tools: Python-based data processing using Pandas and Matplotlib for visualization and reporting.
  • Task Scheduling: Celery and Celery Beat for managing asynchronous tasks and appointment scheduling.

Core Functionality Includes:

  1. Patient Data Management: Digital profiles for mothers and children with accurate, validated record keeping.
  2. Appointment and Visit Tracking: Automated tracking and SMS reminders to improve clinic attendance.
  3. Automated Notification System: SMS for confirmations, reminders, and follow-ups.
  4. Growth and Development Monitoring: Visual growth charts and vaccination tracking.
  5. Data Analytics and Reporting: Dashboards, regional statistics, and PDF report generation.
  6. Birth Certificate Integration: Generates birth certificate application files with potential for RITA integration.

The images below showcase key aspects of the project, including the system’s workflow, child growth monitoring charts, patient follow-up interface, and a snapshot from the final year project presentation.


This summer, I was honored to be selected as one of the five international interns for the Rice360 Global Health Technologies Internship Program at Rice University in Houston, Texas. This opportunity has been a life-changing step in both my academic and professional journey, a chance to grow, learn, and contribute meaningfully alongside brilliant minds from around the world.

Getting Here: From Tanzania to Texas

Thanks to the generous support of our sponsors and the coordination of the Rice360 team, my travel from Dar es Salaam to Houston was smooth and exciting. I departed on June 4, 2025, and after a brief connection in Amsterdam, I arrived in Houston on June 5. The following day, we were warmly welcomed with a wonderful group lunch alongside the other international interns, Michelle, and other team members. That same day, we toured the Rice campus to get familiar with the university, a beautiful and inspiring place that would become our new workspace.


Exploring Houston

On June 7, we had a chance to explore the city. We visited the Houston Zoo and Hermann Park, where we bonded as a group and enjoyed our first real weekend in this new environment. It was the perfect way to relax and prepare for the exciting work ahead.


The SEED Program Begins

The official kickoff of the internship program, SEED (Summer Experience in Engineering Design), took place on June 9. We were introduced to our wonderful supervisor, Dr. Kevin Holmes, and received an overview of the projects we’d be tackling over the summer. Representatives from our client organization joined us to present real-world problems in global health that required innovative solutions.

The next day, we were divided into teams, and I was assigned to a group working on two fascinating projects:

  • Cable Management in iKMC (improved Kangaroo Mother Care) – focused on organizing and securing cables for medical devices in neonatal care settings.
  • Giant Cheetos Machine – a creative engineering challenge to build a fun, interactive mechanism inspired by Cheetos snacks.

Design Thinking in Action

From June 11 to June 13, we dedicated our time to brainstorming, conducting deep research, and making direct observations to understand each project from all angles. We discussed feasibility, user needs, potential constraints, and worked toward identifying the most effective and impactful solutions. It was intense but fulfilling work, exactly what I hoped for from this internship.


💖 A Heartfelt Thank You to Mr. Kamal and Mrs. Eleanor Shah

None of this would be possible without the generous support of my sponsors, Mr. Kamal and Mrs. Eleanor Shah, who made this internship a reality for me. Your investment in global health and education is having a direct and meaningful impact. I am truly grateful for the opportunity to learn, grow, and contribute in such a world-class environment. Your support is not only helping shape my future, but also the lives of those I aim to serve through biomedical innovation

Rooted in Tanzania, Innovating in Texas

Hi, I’m Rahma Kahindi, a second-year Biomedical Engineering student from the Dar es Salaam Institute of Technology in Tanzania. I’m incredibly honored to be part of the SEED Internship Program at Rice University this summer and deeply grateful for the generous sponsorship of Ms. Heidi Carson, who has made this opportunity possible.

This is my first time in the United States, and I’d love to share how my journey began and what the first week has been like. It’s been full of learning, connections, and exciting experiences.

My trip began late on June 4th when I departed from Dar es Salaam at 23:15 on a KLM flight to Amsterdam. After a layover, I boarded another KLM flight and landed in Houston on the morning of June 5th. The Texas heat welcomed me but even more warmly, so did the SEED team!

We were picked up by a friendly driver and taken straight to Rice University, where we met Michelle, our SEED coordinator. She gave us a tour of Martel College, our dorm, and we had lunch at the student center. It was wonderful to meet other interns and get a taste of American campus life.

 

On one of our first days, we had lunch with fellow interns and the students we’ll be collaborating with this summer. It was such a fun and welcoming experience we shared stories, laughed together, and really started to bond as a group.

 

We were also introduced to the Rice360° team, including Dr. Kelvin Holmes, who leads our work at the Oshman Engineering Design Kitchen (OEDK). I’ve already begun collaborating with an amazing team of students and mentors from different backgrounds and disciplines.


Projects I’m Working On:

We received our project assignments on Monday, and I couldn’t be more excited! I’m part of two meaningful engineering teams working on:

  • Egg Brooding & Monitoring System (The Eggcellent Imposter)
    This is a conservation technology project where we’re developing a smart egg that mimics the behavior of real Attwater Prairie Chicken eggs. It monitors key parameters like temperature, humidity, and rotation to help protect this endangered species.
  • Autoclave Water Conservation & Heat Mitigation
    In this project, we’re focused on designing a system that reduces water usage and heat emissions from autoclaves used in healthcare especially in low-resource environments. It’s all about sustainable, smart healthcare technology.

These projects are an amazing fit for my biomedical background, and I’m thrilled to apply both technical knowledge and teamwork in real-world problem-solving. We’ve even had early meetings with our clients, and their passion for their communities makes the work feel even more valuable.

Over the weekend, we got a chance to rest, explore Houston, and try new foods. One of the most exciting parts was our visit to the Houston Zoo, where we saw so many animals up close for the first time. It was both fun and eye-opening to learn about wildlife in a completely new environment!

Zoo
A fun-filled afternoon at the Houston Zoo with my fellow SEED interns discovering nature, bonding, and making unforgettable memories

 

One week in, and I already feel more confident, more curious, and more connected. I’m deeply thankful for this opportunity to grow, both personally and professionally and to contribute to projects that truly matter.

A heartfelt thank you to Ms. Heidi Carson your support is changing lives, and I’m honored to be one of them.

One week down. Six more to go. Let’s make it count!

Why was I in Brownsville, TX?

My work was about a revolution

…or if we ignored my unbridled enthusiasm and challenged ourselves to be a tad more realistic – an educational intervention.

More importantly, my work seemed to be an obsession with the word “shocking”. I heard it over and over again. “These are incredibly shocking depictions of wounds.” or more commonly: “ugh that’s gross. It will shock patients.” These sentences formed the harmonies of my introduction to Brownsville, TX.

Now, I don’t imagine most people associate the word “shocking” with the city of Brownsville in any way. And I don’t blame them. Brownsville is a small city of about 200 thousand. Although palm trees line the breezy streets in an air of vacation, the most exciting part of this city is called Sunrise Mall and it has a movie theater showing The Jungle Book to satisfy all of your vacation needs.

Brownsville, TX
Brownsville, TX looks like vacation. But I was here for the word “shocking”.

Don’t let my sarcasm suggest I was visiting Brownsville on vacation – I was, after all, here for the word shocking.

Continue reading “Why was I in Brownsville, TX?”