Short answer

Integrate 3D printing and user feedback loops into the design process for assistive devices to create more personalized, affordable, and functional solutions.

Field: User-Centred Design
Source: PLoS ONE (2018)
Method: User-centered design with iterative prototyping and functional testing.
Sample: 9 participants (3 users, 6 orthotists)
Evidence: Moderate effect

Leveraging 3D printing and user feedback, a novel wrist-driven orthosis significantly reduces fabrication time and cost while improving hand function and customizability for individuals with spinal cord injuries. This user-centred design research insight is drawn from a 2018 study published in PLoS ONE. Using User-centered design with iterative prototyping and functional testing. with 9 participants (3 users, 6 orthotists), researchers explored how this design variable affects real-world outcomes. The key design takeaway: Integrate 3D printing and user feedback loops into the design process for assistive devices to create more personalized, affordable, and functional solutions.

Study

User-Centred DesignHigh ImpactModerate effect

3D-Printed Wrist-Driven Orthosis Enhances Hand Function and Accessibility for Spinal Cord Injury Patients

PLoS ONE · 2018

Key Findings

01Reduced hands-on assembly time to approximately 1.5 hours.
02Lowered material costs to $15 compared to current methods.
03Observed varying improvements in users' hand function, including increased grasp strength and the ability to perform a pinching grasp.
04Design is available open-source to enhance accessibility and foster future innovation.

Application

Design takeaway

Integrate 3D printing and user feedback loops into the design process for assistive devices to create more personalized, affordable, and functional solutions.

How to apply

When designing assistive devices, consider using 3D printing for rapid prototyping and customization, and actively involve target users and relevant professionals throughout the design and testing phases. Make designs open-source where appropriate to foster wider adoption and improvement.

Project actions

01When designing a product, think about who will use it and how they will use it. Get their opinions early and often.
02Explore how new technologies like 3D printing can make your designs more affordable or customizable.

Method & Evidence

AimTo design and evaluate a 3D-printed, open-source wrist-driven orthosis that improves accessibility, customizability, and function for individuals with spinal cord injuries.

MethodUser-centered design with iterative prototyping and functional testing.

ProcedureThe research involved designing a 3D-printed wrist-driven orthosis, incorporating feedback from both individuals with spinal cord injuries (users) and orthotists. The design was iterated based on this feedback, and its performance was evaluated through functional tests like the Jebsen Taylor Hand Function Test, measuring improvements in hand function and grasp strength.

Sample9 participants (3 users, 6 orthotists)

ContextAssistive technology design for individuals with spinal cord injury.

Variables

IV["Design of the 3D-printed wrist-driven orthosis","Inclusion of user and orthotist feedback"]

DV["Hands-on assembly time","Material costs","User hand function (e.g., Jebsen Taylor Hand Function Test scores)","Grasp strength"]

CV["Type of spinal cord injury (implied, though not explicitly controlled for variability)","User's baseline hand function","Specific tasks performed during testing"]

Strengths & Limitations

Strengths

+Direct involvement of end-users and professionals.
+Utilization of advanced manufacturing (3D printing) for customization and cost reduction.
+Open-source approach to promote accessibility and further development.

Limitations

The number of users involved was small, meaning the results might not apply to everyone. Also, some users didn't see as much improvement as others.

Reliability & validity

The study's validity is supported by functional testing and direct user feedback. Reliability might be limited by the small sample size and the inherent variability in user outcomes.

Think critically

How might the variability in user outcomes with the orthosis be addressed in future design iterations?

Design Principles

"Prioritize user-centric co-design and leverage advanced manufacturing for accessible customization."

This research demonstrates how advanced manufacturing techniques, combined with direct user and professional input, can lead to more accessible, affordable, and effective assistive devices. It highlights the potential for personalized solutions that address specific user needs and overcome limitations of traditional fabrication methods.

What This Means for Your Design

This study shows how 3D printing can make special braces for people with spinal cord injuries much cheaper and faster to make. It also helped some users improve their hand strength and ability to grip things.

How to use in your project

1.Reference this study when discussing the benefits of user testing and the application of 3D printing in creating personalized assistive devices.

Add to My Project

Quick Cite

Paragraph starter

The design of a 3D-printed wrist-driven orthosis for individuals with spinal cord injury, as detailed by Portnova-Fahreeva et al. (2018), highlights the efficacy of user-centered design principles combined with advanced manufacturing. By incorporating feedback from both users and orthotists, the research team developed an assistive device that significantly reduced fabrication time and material costs, while also demonstrating improvements in user hand function and grasp strength. This work underscores the potential for 3D printing to create accessible, customizable, and effective solutions for specific user needs within the field of assistive technology.

Source

PLoS ONE

Design of a 3D-printed, open-source wrist-driven orthosis for individuals with spinal cord injury

journal · 2018

View source

Questions About This Research

What does the research say about 3d-printed wrist-driven orthosis enhances hand function and accessibility for spinal cord injury patients?: Integrate 3D printing and user feedback loops into the design process for assistive devices to create more personalized, affordable, and functional solutions. Evidence: PLoS ONE (2018).
Why does "3D-Printed Wrist-Driven Orthosis Enhances Hand Function and Accessibility for Spinal Cord Injury Patients" matter for design?: This research demonstrates how advanced manufacturing techniques, combined with direct user and professional input, can lead to more accessible, affordable, and effective assistive devices. It highlights the potential for personalized solutions that address specific user needs and overcome limitations of traditional fabrication methods.
How can designers apply this research?: Integrate 3D printing and user feedback loops into the design process for assistive devices to create more personalized, affordable, and functional solutions.
What were the main findings?: Reduced hands-on assembly time to approximately 1.5 hours.. Lowered material costs to $15 compared to current methods.. Observed varying improvements in users' hand function, including increased grasp strength and the ability to perform a pinching grasp.. Design is available open-source to enhance accessibility and foster future innovation.
What research method was used?: User-centered design with iterative prototyping and functional testing. with 9 participants (3 users, 6 orthotists).
How strong is the evidence?: Evidence strength is rated Moderate effect, based on a 2018 journal from PLoS ONE.
What should I do differently in my next project?: When designing assistive devices, consider using 3D printing for rapid prototyping and customization, and actively involve target users and relevant professionals throughout the design and testing phases. Make designs open-source where appropriate to foster wider adoption and improvement.
What are the limitations?: Variability in functional improvements among users; the study size was small.