Portable Pain Relief
Portable Pain Relief
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Ergonomic and Portable Design for Transcutaneous Electrical Nerve Stimulation
Ergonomic and Portable Design for Transcutaneous Electrical Nerve Stimulation
Overview
Overview
Medical Product Designer | Human Factors
Medical Product Designer | Human Factors
Dahian Medical Equipment Co
Collaborating with University of Tehran Science & Technology - Tech incubator with 300+ companies employing 6,500+ people, collaborating with health-tech startups.
September 2018 - August 2019
Objectives
Objectives
I collaborated with Dahian Medical Equipment Co., a professional manufacturer of medical devices in the field of electrocardiographs, on a project to design and create an outer shell for the TENS (Transcutaneous Electrical Nerve Stimulation) device for chronic muscle pain relief, developed by the engineers.
Image of a TENS device for chironic pain relief from istockphoto.com
The exterior body of this device had to contain and cover electronic boards, among other things, but it also had to be ergonomic for patients to use in a portable manner.
The exterior body of this device had to contain and cover electronic boards, among other things, but it also had to be ergonomic for patients to use in a portable manner.
Design Process
Design Process
To study the device's medical functions and intended affordances, I conducted extensive desk research, benchmarking, and market research, as well as observed similar devices in real-world settings: physical rehabilitation centers.
I sketched several ideas for how the product might look, first without considering the constraints, aka black box.
To select the best design concept, I ranked functional and ergonomic aspects using matrix of rated objectives.
The top concept was later discussed with stakeholders. I developed it further, rough modeled with paper and foam, and once the dimensions were determined, 3D modeled the final prototype in Solidworks, with proper printing and assembly requirements.
Design Contribution
Design Contribution
One of the most important safety issues with the device was to avoid using it while plugged in and charging. And taking the end-user in mind throughout the process is how the final design distinguishes itself apart from competitors.
I designed an innovative but simple solution that is incorporated into the exterior body design. I placed the charger input and output for the wires that connect to the body on the top edge of the device. and placed a sliding component on the edge, which covers the input entrance while the device is in use and then covers the output when it is plugged in to charge.
Such a simple addition to the product's outer layer eliminated the need to develop complicated electronic boards to control in/out power, saved countless electronic materials, and freed up plenty of space to make the device smaller and more portable, ergonomically designed for the 5th human grip percentile.
Such a simple addition to the product's outer layer eliminated the need to develop complicated electronic boards to control in/out power, saved countless electronic materials, and freed up plenty of space to make the device smaller and more portable, ergonomically designed for the 5th human grip percentile.
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