The HEAL Initiative, which stands for Humanitarian Engineering for Aid and Lifesaving, is a student-led engineering and humanitarian program developed by The Clueless #11212. HEAL was founded on the belief that the same engineering skills used to build robots can and should be used to solve real problems in the world around us.

The initiative focuses on one of the most persistent gaps in global healthcare: the shortage of functional, affordable medical diagnostic tools in medically underserved areas. Our primary goal for the project was to improve the design of Glia's stethoscope, which was clinically validated to be usable in clinics. After improving upon the design, our current goal is to provide these stethoscopes to safety-net health clinics, mobile medical units, street medicine programs, and outreach organizations throughout the United States and around the world.

HEAL is currently active, operational, and producing results. 150 stethoscopes have been shipped to the Democratic Republic of the Congo, and 50 more are currently being shipped to China. Production and material expenses are fully covered through the generosity of our partner organizations, material donors, and donations to We Impact Corp.

Access to basic diagnostic tools is not a given in much of the world, nor even in many corners of the United States. A stethoscope, one of the oldest and most fundamental instruments in medicine, remains out of reach for an alarming number of healthcare providers working in under-resourced settings.

In high-income countries, the problem is often one of cost and supply chain. Allied health professionals such as nurses, paramedics, and community health workers are frequently expected to purchase their own equipment. For those working at free clinics, mobile health vans, or street medicine programs operating on thin budgets, even a modestly priced stethoscope can represent a meaningful financial barrier.

In low- and middle-income countries, the problem is more severe. Stethoscopes in many rural and conflict-affected settings are genuinely scarce. Some providers have simply never had access to one. The founding story of the Glia Project, the open-source medical hardware organization whose stethoscope design forms the backbone of our own work, illustrates this reality vividly. In 2012, Dr. Tarek Loubani, a Canadian emergency physician working in Gaza during a mass casualty event, observed fellow providers placing their ears directly against the chests of injured patients in order to hear breath sounds, because there were not enough stethoscopes to go around. That image was what drove him to create a 3D-printable stethoscope that could be manufactured anywhere.

That same urgency informs everything we do at HEAL. The tools exist to close this gap, the materials are accessible, and the manufacturing process is replicable. What has been missing is a committed effort to build and distribute these devices at scale, consistently, and at no cost to the people and organizations who need them most. That is exactly what HEAL exists to do.

The stethoscope we manufacture through the HEAL Initiative is built upon the open-source Glia Stethoscope design, a peer-reviewed, clinically validated instrument developed by the Glia Project and published openly so that anyone in the world can reproduce it.

The Glia Stethoscope was validated in a study published in a peer-reviewed journal and indexed in the National Institutes of Health's PubMed Central database (reference: PMC5851543). That study demonstrated that the 3D-printed Glia design performed at clinical standards equivalent to the Littmann Cardiology III, which is widely considered the gold standard among conventional stethoscopes.

Our robotics team studied the original Glia specifications, printed and tested multiple iterations, and solicited detailed feedback from local clinical professionals, including nurses and physicians from the Greater San Diego area who use stethoscopes in their daily practice. Through that iterative process, we identified and implemented modifications to the acoustic chamber and tubing configuration that measurably improved sound transmission quality.

The result: our version of the stethoscope achieves an 18 percent increase in measured acoustic quality compared to the baseline Glia design. An 18 percent gain in acoustic clarity means that subtle but diagnostically significant sounds, such as early-stage heart murmurs, faint crackles in the lungs, or quieter breath sounds, are more audible to the provider.

Our design remains fully open-source in spirit. We intend to work with the Glia community so that other makers, students, and engineers around the world can benefit from what we have learned.

Every stethoscope produced by the HEAL Initiative is built to the following specifications, selected for durability, clinical performance, hygiene compatibility, and suitability for field use.

Primary Structural Material: High-density PETG thermoplastic polymer, selected for its combination of rigidity, impact resistance, and ease of printing at consistent quality. PETG maintains its structural integrity across a wide range of environmental conditions, making it well suited for outdoor medical settings, mobile health vans, or locations without climate control.

Acoustic Tubing: Pure silicone tubing rated at 65 Durometer. At this hardness, our tubing maintains a firm, consistent channel for sound while remaining flexible enough for comfortable extended use.

Diaphragm: PVC sheet material, cut to produce a responsive diaphragm that captures both high-frequency sounds (such as breath sounds and bowel tones) and lower-frequency sounds (such as heart tones and bruits).

Intended Use Environments: Areas like safety-net healthcare delivery, including mobile health vans, community health fairs, street medicine programs, rapid frontline screening at shelters or encampments, field triage operations, and outreach clinics operating in non-clinical spaces such as community centers, schools, or faith-based facilities.

Before offering our stethoscopes to any healthcare organization, we are committed to ensuring that they met the actual performance standards required for clinical use. We sought evaluation from licensed medical professionals with direct clinical experience, and the feedback we received was unambiguous.

Dr. Hafez Azadeh, an anesthesiologist at GCA Anesthesia with extensive experience using diagnostic instruments across clinical settings, evaluated our stethoscope directly. His assessment was that its performance "far exceeds what is needed for basic diagnostics," specifically citing blood pressure assessment and respiratory auscultation as use cases the device handles with more than adequate capability.

Dr. Akbar Rhaman of UCSD Health provided an equally strong endorsement, describing our stethoscope as "acoustically comparable to industry-grade stethoscopes often costing over $100."

These are evaluations from working clinicians who use stethoscopes every day, who know what adequate acoustic performance sounds like, and who provided candid professional assessments of a student-built device they had not previously encountered. Their conclusions validate the core thesis of the HEAL Initiative: that a 3D-printed stethoscope, built with accessible materials and careful engineering, can perform at the level required for real diagnostic work in real clinical settings.

The HEAL Initiative and our stethoscope project were awarded Best Overall Social Innovation at the Jacobs Teen Innovation Challenge, a competitive showcase that evaluates student-led projects on the basis of engineering rigor, social impact potential, originality, and feasibility.

This recognition matters to us not as a credential but as external confirmation that what we are building is substantive. The judges at the Jacobs Teen Innovation Challenge are professionals with experience in engineering, medicine, business, and social impact. Their award reflects a judgment that our project is well-conceived, technically sound, and capable of producing meaningful humanitarian outcomes.

The Clueless #11212 is a competitive FIRST Tech Challenge robotics team based in San Diego, California. We compete in robot design and programming challenges throughout the season, which demands skills in mechanical engineering, software development, project management, and teamwork under pressure.

The HEAL Initiative grew out of a question our team asked collectively: What can we do with the resources and skills we have to help the world? The answer, for us, was clear. We had 3D printers, engineering training, a collaborative team, and a shared belief that those resources carried some responsibility. HEAL is how we chose to act on that belief.

Our team members have contributed to every stage of the stethoscope project: design research and iteration, print optimization and quality control, acoustic testing, clinical outreach, assembly training, documentation, and the outreach and distribution work that is now underway. The project is student-led at every level, with guidance and mentorship from advisors who have supported our growth without directing it.

We are a high school robotics team. We are also, through HEAL, a medical device production team, a community health partner, and a humanitarian distribution operation.

As of our most recent production update, the HEAL Initiative has 200 units fully assembled, quality-checked, and ready for immediate deployment to any organization that requests them, with an additional 300 units currently in the assembly phase that will be available in the near term.

All units are provided free of charge. There is no application fee, no organizational membership required, and no minimum order. We ask only that recipient organizations are serving medically underserved patients and that the stethoscopes be used in direct patient care or distributed to providers engaged in that work.

For organizations located in the Greater San Diego and North County area, we are able to coordinate hand delivery at no cost. For organizations outside the region, we are prepared to ship directly. We prefer that shipping costs be covered by the receiving organization when possible, as this allows us to preserve our production budget for building more devices. However, we recognize that many safety-net organizations operate on extremely limited budgets, and we are willing to discuss alternative arrangements.

We are actively seeking partnerships with the following types of organizations: free and charitable clinics serving uninsured or underinsured patients in the United States, particularly those operating in high-need communities where clinical equipment is frequently underfunded or in short supply; mobile health programs including mobile medical vans, street medicine teams, and field health units serving patients experiencing homelessness or living in areas without convenient access to stationary clinic facilities; community health fairs and outreach programs that conduct basic health screening and patient triage in non-clinical settings such as schools, shelters, community centers, and faith institutions; medical mission organizations and global health nonprofits that distribute supplies to healthcare facilities in low- and middle-income countries, including those operating in post-conflict zones, rural regions, or areas affected by natural disaster; and safety-net hospital systems and federally qualified health centers that serve patient populations with limited ability to pay.

If your organization fits any of these descriptions, we would love to collaborate. We believe our stethoscopes can make a real difference in your work, and we are committed to making the process of receiving them as straightforward as possible.

We welcome partnerships with nonprofits, healthcare organizations, distributors, and community groups that share our commitment to expanding access to basic medical care. Whether you are looking to receive a donation of stethoscopes, explore a distribution partnership, or collaborate on the engineering and design side of our work, we would love to start a conversation.

Email: ftc11212@gmail.com | Phone: (858) 226-2393 | Website: www.thecluelessftc.org | Location: San Diego, CA

The Clueless #11212 is a student robotics team, and the HEAL Initiative is our commitment to using the skills competition has given us for something larger than competition. We believe that access to basic diagnostic tools is not a luxury. We are building toward a world where no provider has to go without one.