[Paper Review] The Eve of 3D Printing in Telemedicine: State of the Art and Future Challenges

Piero Giacomelli, Åsa Smedberg|arXiv (Cornell University)|May 6, 2014

Soft Robotics and Applications14 references3 citations

TL;DR

This paper explores the integration of 3D printing into telemedicine, highlighting its potential for remote production of customized medical devices such as tracheal splints using patient-specific CT scans. It demonstrates a real-world application in a neonatal surgery case and discusses critical challenges including regulatory compliance, standardization, and liability in decentralized medical manufacturing.

ABSTRACT

3D printing has raised a lot of attention from fields outside the manufacturing one in the last years. In this paper, we will illustrate some recent advances of 3D printing technology, applied to the field of telemedicine and remote patient care. The potentiality of this technology will be detailed without lab examples. Some crucial aspect such as the regulation of these devices and the need of some standards will also be discussed. The purpose of this paper is to present some of the most promising applications of such technology.

Motivation & Objective

• To analyze the current state of 3D printing technology in telemedicine and remote patient care.
• To identify and evaluate promising medical applications of 3D printing, particularly in surgical interventions.
• To examine the role of online communities in advancing 3D printing for healthcare.
• To address regulatory, safety, and ethical challenges in the use of 3D-printed medical devices outside traditional manufacturing settings.
• To explore the implications of patent expirations on the future accessibility and adoption of 3D printing in healthcare.

Proposed method

• Review of existing 3D printing technologies, including extrusion, granular, laminated, and light polymerization methods.
• Case study analysis of a 3D-printed tracheal splint produced from a CT scan and implanted in a neonate with tracheobronchomalacia.
• Examination of open-source 3D printing communities and their role in knowledge sharing and innovation.
• Analysis of regulatory frameworks, including FDA and EU medical device regulations, in the context of 3D-printed medical devices.
• Discussion of legal and liability issues arising from decentralized, remote production of medical devices.
• Evaluation of the impact of expiring key patents on 3D printing technology, particularly laser sintering and Fused Deposition Modeling (FDM).

Experimental results

Research questions

• RQ1 How can 3D printing enable remote, patient-specific medical device fabrication in telemedicine settings?
• RQ2 What are the key technical and regulatory barriers to widespread adoption of 3D-printed medical devices in clinical practice?
• RQ3 How do online 3D printing communities contribute to innovation and knowledge sharing in medical applications?
• RQ4 What legal and ethical responsibilities arise when 3D-printed medical devices are produced and used outside traditional regulatory oversight?
• RQ5 How will the expiration of key 3D printing patents affect access, innovation, and standardization in medical 3D printing?

Key findings

• A 3D-printed tracheal splint made from polycaprolactone was successfully implanted in a neonate with tracheobronchomalacia, enabling normal ventilation and demonstrating the feasibility of remote, patient-specific device fabrication.
• The procedure was approved under compassionate use provisions by the FDA, highlighting a regulatory pathway for novel 3D-printed devices when standard approval is not available.
• The cost of home 3D printers has decreased significantly—from two orders of magnitude higher in early models to approximately $3,500—driven by open-source sharing and community-driven innovation.
• The emergence of online communities has accelerated knowledge sharing and collaborative development of 3D printing applications, including in healthcare, though hygiene and safety standards remain underdeveloped.
• Regulatory frameworks such as those from the FDA and EU are not yet fully equipped to handle decentralized, remote production of medical devices, creating legal and liability ambiguities.
• The impending expiration of key 3D printing patents, particularly in laser sintering, is expected to drive a surge in innovation and affordability, similar to the FDM technology boom after its patent expiry.