This project aims to develop pulse oximetry and straps that can be worn on the human body.
To ensure a secure and stable fit even during physical activities,
the design process focused on shape study through prototyping and user testing
to find the most suitable form for the human body.
Designed by Cheolhun Cheon
study on subject and set development goals before designing.
This project was carried out in collaboration with the Engineering department.
The department asked for the design of the oximetry with two requirements.
1. Develop oximetry based on the given board and battery.
2. Develop oximetry that can alert dangerous conditions during exercise.
The products developed for medical use have the disadvantage
that it is difficult to exercise while wearing them, and smart watches
that can be used while exercising are super expensive.
The goal of the design is to propose a product that is inexpensive
and can be worn while exercising.
Set the concept and design direction of the device and holder.
Cost savings by removing the display from the PCB because the purpose is not to monitor oxygen data in real-time.
Sound alerts the user when oxygen saturation reaches a hazardous level during exercise.
The holder ensures secure placement and easy accessibility during use.
Oxygen saturation is most accurately measured in the backhand and wrist.
So, aim to design the device to be suitable for both parts.
Sports equipment is ergonomic and has good wearability.
So, the design will be carried out with a concept that combines sports equipment and medical devices.
Set the concept and design direction of the device and holder.
Put on the holder
The L-shaped structure allows the holder to be placed on the device.
Set the concept and design direction of the device and holder.
Curvature bottom
The flat bottom lacked adhesion, so a curved bottom was added.
Sketch
3D Modeling
3D Printing
Set the concept and design direction of the device and holder.
Widen the top
Widen the top part so that the holder can be placed better.
The internal structure and assembly were tested, ensuring proper integration of the components.
Top Part
Bottom Part
Design the assembly structure of the top and bottom parts, as well as the internal structure for the PCB and battery.
Design two types of holders to fasten the device to the backhand and wrist.
Focus on how users can wear themselves easily and on fastening the device well.
Design a glove-type holder for the backhand and test it with a paper mock-up.
Type B is a holder for the wrist. Conduct a wearing test with a paper mock-up.
In order to carry out the wearing test, make prototypes of the two types. Velcro is used for wearability.
Velcro improves wearability, but users struggle to wear the holder alone due to a loose fit.
There is a need to add extra parts to solve this issue.
Design additional parts to improve probelms found in Week 10.
Part A is installed in the holder's hole so that the device can be tightly combined with the holder.
Part B improves wearability by fixing the holder once more.
After fixing the device through Part A, the user can easily wear the holder using Part B.
The test confirmed that the wearability of the holder is improved through additional parts.
Final Design
