3D-Printed Orthosis Transformed into VR Controller for Enhanced Hand Therapy

Why It Matters

This approach demonstrates how additive manufacturing and sensor integration can bridge the gap between physical rehabilitation needs and immersive digital experiences. It opens avenues for creating highly personalized assistive devices that can adapt to specific user requirements and therapeutic goals.

Key Finding

A 3D-printed orthosis was successfully adapted with technology to act as a VR controller, enabling a specialized VR therapy game for patients with hand impairments.

Key Findings

• The customized orthosis successfully functioned as a VR controller, replacing standard input devices.
• The VR game scenario incorporated exercises deemed important by physiotherapists for patients with congenital paresis.
• Expert assessment provided feedback for future improvements to the orthosis and VR therapy.

Research Evidence

Aim: Can a customized 3D-printed orthosis, augmented with sensors, effectively function as a virtual reality controller for hand therapy in patients with congenital paresis?

Method: Prototyping and User Testing

Procedure: A standard 3D-printed orthosis was modified with custom electronics and motion trackers to serve as a VR controller. A VR game scenario, designed with physiotherapist input to include relevant therapeutic exercises, was developed to utilize this custom controller. The system was then tested with patients and evaluated by an expert physiotherapist.

Sample Size: null

Context: Rehabilitation technology, Virtual Reality, Medical Devices

Design Principle

Personalized digital interaction through adapted physical interfaces.

How to Apply

Consider using 3D printing to create custom interfaces for users with specific physical needs, integrating sensors to enable interaction with digital systems or virtual environments.

Limitations

The study focused on a specific patient group and condition; generalizability may require further investigation. Long-term efficacy and user engagement were not extensively detailed.

Student Guide (IB Design Technology)

Simple Explanation: Researchers made a special brace using a 3D printer and added sensors to it. This brace could then be used like a game controller in virtual reality, helping a patient with a hand condition do their therapy exercises in a fun game.

Why This Matters: This shows how you can combine different technologies like 3D printing and VR to solve real-world problems, especially in health and accessibility.

Critical Thinking: To what extent can the principles of adapting a physical orthosis into a VR controller be applied to other assistive technologies or user interfaces for different disabilities?

IA-Ready Paragraph: The development of a customized 3D-printed orthosis, augmented with sensors and motion tracking, demonstrates a novel approach to creating interactive assistive devices. This research highlights the potential for additive manufacturing to produce personalized solutions that can bridge physical limitations with digital engagement, as seen in its application for virtual reality-assisted hand therapy.

Project Tips

• Explore how 3D printing can be used to create custom grips or interfaces for existing devices.
• Investigate low-cost sensor options for adding interactivity to physical objects.

How to Use in IA

• Use this research to justify the development of a customized physical interface for a digital product.
• Reference the methodology for adapting a standard object into an interactive component.

Examiner Tips

• When discussing the development of a prototype, clearly articulate the rationale behind material choices and sensor integration.
• Ensure the connection between the physical prototype and its intended digital interaction is well-explained.

Independent Variable: Customized 3D-printed orthosis with integrated sensors and motion trackers.

Dependent Variable: Effectiveness of hand therapy, User interaction within VR, Patient engagement.

Controlled Variables: Congenital paresis disease, VR game scenario design, Physiotherapist's assessment criteria.

Strengths

• Innovative integration of additive manufacturing with VR technology.
• Involvement of medical professionals in the design process.

Critical Questions

• What are the ethical considerations when developing and deploying such personalized medical devices?
• How can the cost-effectiveness of this approach be evaluated compared to traditional therapy methods?

Extended Essay Application

• Investigate the potential for developing a similar customized interface for a different therapeutic need or user group.
• Explore the biomechanical principles behind hand function and how they can inform the design of assistive devices.

Source

Development and Studies of VR-Assisted Hand Therapy Using a Customized Biomechatronic 3D Printed Orthosis · Electronics · 2023 · 10.3390/electronics13010079