In this research, patent maps were first drawn by searching, organizing and classifying those patents related to bicycles’ capabilities and technologies, and the direction of improving and inventing folding bicycles was found out with the patent maps. Next, the methodology of TRIZ was applied to analyze the problems; the basic technological contradictions were confronted, and the resolve program was developed. In the end, an improved folding bicycle was designed, using PRO/E, the drawing software, to complete the product’s blueprint.
Objective: This prospective observational study aims to measure the epiglottic thickness by ultrasonography (US) in healthy volunteers. Methods: Healthy adult volunteers were recruited from the National Taiwan University Hospital between October and November 2019. Exclusion criteria included preexisting airway diseases, neck tumors, and a history of neck operation. Epiglottic thickness was measured at the midpoint, right and left edges of the epiglottis. Age, sex, height, weight, and body mass index (BMI) were collected. The linear regression model was employed to identify parameters to be associated with the epiglottic thickness. Coefficients and 95% confidence intervals (CIs) were computed. The literature was also reviewed. Results: There were 124 Chinese adults and 63 were men. The average age was 32.5±10.4 years. The midpoint, right edge and left edge of the epiglottic thickness was 2.03±0.42 mm, 2.14±0.42 mm and 2.21±0.
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