PREPI Design Process
Interviews with Stakeholders
— Chet, 26
Emergency Medical Technician (EMT)
— Storrie, 22
Allergic to peanuts.
People are bad historians. But I need to know when and how much epinephrine was administered to do my job.
I don't bring my Epipens with me. They're too big to fit in my pocket.
The EpiPen is too big.
To avoid the hassle of bringing a bag, people often choose to put their lives at risk by leaving home without their EpiPens.
Throughout our research we learned that people are leaving their EpiPens behind simply because they were too big. They required people to bring a bag with them wherever they went. "If I diligently monitor what I consume, then I shouldn't have a reaction, and won't need my EpiPen."
EpiPen lacks emergency services.
While experiencing anaphylaxis, calling 911, navigating to the nearest hospital, and notifying loved ones become a difficult task.
EpiPen is considered the industry standard, but it lacks many key feautres. Through a task analysis we learned that after using an EpiPen it is difficult to follow through on contacting emergency services.
The current form leads to injury.
The safety tab and injector end are easily confused and often contribute to people stabbing their thumbs on accident.
Despite EpiPen being the go-to for severe allergies, many people still hurt themselves when using the device. As more and more children are diagnosed with severe allergies, it's more important than ever to create a simple and life saving device.
Before doing much research, I wanted to get initial ideas out on paper. I started by thinking about the interactive experiences of someone with severe allergies. Some questions I was thinking about during this phase included:
— How do you carry the EpiPens with you?
— What form should it take?
— What services could we implement?
— How do you activate the injection?
— Is it a connected device?
Simpler and Connected
As we moved forward, we simplified the form as much as possible. To prevent people from accidentally stabbing themselves like they do now, we capped the arrow-indicated injection end.
We also were ideating what the case might look like and how it would connect to a phone. After this phase we finished our prototyping and moved on the connected application.
1 Removed the clip
2 Updated the external housing
3 Fixing the internal housing to support the
new CO2 injection system as opposed to
a larger spring.
4 Changed the cap so it wouldn't
accidentally activate the injection and
miss-fire the epinephrine
5 25% smaller than the EpiPen. Small
enough to fit in your pocket.
3D Print with Vinyl Stickers
This project focused primarily on the user experiences of people with serve allergies. We wanted to design a product that could live with them for years to come. The 3D print validated our decisions that it could and should be smaller. We are yet to test it with all the internal parts.
Our digital prototype for the app was quickly designed so that people experiencing anaphylaxis could be self-reliant and contact emergency services. We also thought it was the part of the project that filled in what was missing from EpiPen; a connect system focused on the people living with severe allergies.
Smaller with a Clip
For our initial prototyping, we wanted to investigate what a good size might be to both fit in your hand and in your pocket. While we thought we were going in the right direction, some things still bothered us.
The clip had to go. It could fit in your pocket without it. Also, the activator on the top was confusing the injection. We liked the simple rectangular form and size. Now we had to figure out what the connected services will do.
Glaucoma Monitoring System:
TONO Design Process
How to Reduce Pressure?
Consistent Eye Drop Medication
Increased eye pressure is a result of increased fluid inflow and blocked fluid outflow within the eye. Prescription eye drop medications can help reduce the pressure, but can only affect one at a time. Thus people need multiple eye drops taken multiple times daily.
Taking multiple different eye drops, multiple times daily for the rest of their lives, as to prevent permanent vision loss.
What is Glaucoma?
Increased Eye Pressure
Glaucoma is a group of chronic eye diseases characterized by increased interocular eye pressure. The extra fluid in the eye results in increased pressure. That pressure affects the ocular nerve creating permanent vision loss.
1 drainage canal can become blocked
which leads to increased fluid in the eye.
2 the increased fluid creates pressure that
damages the optical nerve.
Journey Mapping Glaucoma:
A Life-long Rollercoaster
Predictive Blindness Empathy Map