Design and Application of a Novel Device for Nasal Tip Flexibility and Stability
Related Experiment Video
Updated: Nov 8, 2026
Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation
Published on: June 20, 2018
Jinyuan Chang1, Haojie Ge2, Xingyu Xiang3
1Department of Plastic and Aesthetic Surgery, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, 410021, Hunan, China.
Objective:
To design a novel device for multi‑point and multi‑angle measurement of nasal tip flexibility and stability, and provide objective data for surgical planning and postoperative outcome comparison.
Materials And Methods:
The device comprises an arched support with an annular chute, an adjustable-height base, an electric push rod, a laser positioning unit, and a high-precision pressure sensor. After programming, the device was used to measure 50 young Chinese women at four nasal tip points under 1.5 N force; displacement was recorded and force-displacement curves were plotted.
Results:
The device was successfully fabricated and calibrated. Mean displacements under 1.5 N were: superior nasal tip turning point 8.845 ± 1.967 mm, columellar-lobular angle junction 11.166 ± 1.659 mm, left 45° nasal tip defining point 8.650 ± 2.471 mm, right 45° defining point 8.571 ± 2.495 mm. Force-displacement curves were successfully generated.
Conclusion:
This novel device enables accurate, objective quantification of nasal tip flexibility and stability. It shows high potential for establishing a nasal tip measurement database and evaluating preoperative and postoperative surgical efficacy.
Level Of Evidence V:
This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
