Bubble dynamics and speed of jets for needle-free injections produced by thermocavitation.

ABSTRACT:

Significance

The number of injections administered has increased dramatically worldwide due to vaccination campaigns following the COVID-19 pandemic, creating a problem of disposing of syringes and needles. Accidental needle sticks occur among medical and cleaning staff, exposing them to highly contagious diseases, such as hepatitis and human immunodeficiency virus. In addition, needle phobia may prevent adequate treatment. To overcome these problems, we propose a needle-free injector based on thermocavitation.

Aim

Experimentally study the dynamics of vapor bubbles produced by thermocavitation inside a fully buried 3D fused silica chamber and the resulting high-speed jets emerging through a small nozzle made at the top of it. The injected volume can range from ∼0.1 to 2  μL

SUBMITTER: Gonzalez-Sierra NE 

PROVIDER: S-EPMC10362157 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature