Needle-Free Jet Injectors' Geometry Design and Drug Diffusion Process Analysis. (8th November 2021)

• Record Type: Journal Article
• Authors: Wang, Yunfei; Yue, Long; Hu, Lechuan; Wang, Jing
• Other Names: López Perrusquia Noé Academic Editor.
• Is Part Of: Applied bionics and biomechanics. Volume 2021(2021)
• Publication Date: 2021-11-08
• Subjects: Bionics -- Periodicals; Biomechanics -- Periodicals; Biomedical engineering -- Periodicals; 003.505
• DOI: 10.1155/2021/5199278
• Languages: English
• ISSNs: 1176-2322

Abstract

Abstract : In order to study the injection and diffusion process of the drug in the subcutaneous tissue of a needle-free jet injectors (NFJIs) in detail and understand the influence of different nozzle geometry on the diffusion process of the drug, in this paper, numerical simulations were performed to study the diffusion process of the drug in the subcutaneous tissue of NFJIs with cylindrical nozzle. On this basis, the differences of the drug diffusion process with different nozzle geometries were analyzed. The results show that the drug diffused in the shape of ellipsoid in the subcutaneous tissue. The penetration of the drug into the subcutaneous tissue is deeper under the condition of conical nozzle and conical cylindrical nozzle at the same time. However, it takes longer to spread to the interface between skin and subcutaneous tissue in reverse.