Design and evaluation of a novel and sustainable human-powered low-cost 3D printed thermal laryngoscope

  • Michael Dinsmore
  • Sachin Doshi
  • Vivian Sin
  • Clyde MatavaEmail author
Patient Facing Systems
Part of the following topical collections:
  1. Patient Facing Systems


Laryngoscopes are an essential and necessary piece of equipment used by anesthesiologist on a daily basis. Early designs of laryngoscopes date back as early as the 1700’s, however, significant innovation and modifications began to take place in 1913 and have continued to the present day [1]. Critical to the operation of laryngoscopes is the requirement of a functional light source. While recent designs of laryngoscopes incorporate high efficiency Light Emitting Diodes (LED) as light sources, they still require power from a stored source that is either rechargeable or disposable. This can become a challenge in low resource settings where batteries or electricity are not readily accessible. An investigation of health facilities in 11 sub-Saharan African countries revealed that 26% of health facilities and 1% of hospitals had no access to electricity. Similarly, 6% of hospitals relied on generator-only power, and 66% of hospitals were classified as not having reliable access...



This study was funded by an internal grant, the Mary-Jo Haddard Innovation Fund.

Compliance with Ethical Standards

This work was presented in part as abstracts at Society for Technology Annual Meeting January 2018 – Miami Florida, United States and the Canadian Anesthesiology Society Annual Meeting June 2018 – Montreal, Quebec, Canada.

Conflict of Interest

Clyde Matava declares that he has no conflict of interest. Michael Dinsmore declares that he no conflict of interest. Sachin Doshi declares that he has no conflict of interest. Vivian Sin declares that she has no conflict of interest.

Ethical approval

This article does not contain any studies with human participants or animals performed by any of the authors.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Anesthesia and Pain MedicineThe Hospital for Sick ChildrenTorontoCanada
  2. 2.Department of Anesthesia, Faculty of MedicineUniversity of TorontoTorontoCanada
  3. 3.Department of AnesthesiaUHN-Toronto Western & Women’s College Hospitals TorontoTorontoCanada
  4. 4.Faculty of MedicineUniversity of TorontoTorontoCanada
  5. 5.CIGITIHospital for Sick ChildrenTorontoCanada

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