Photoacoustic imaging, a promising technique in medical diagnostics, combines optical and ultrasound modalities to visualize biological tissues. Unlike traditional ultrasound, which monitors waves and sound reflection, photoacoustic imaging utilizes a combination of laser-induced optical excitation and subsequent ultrasound detection. 

Central to photoacoustic imaging are the optical fibers and the ultrasound transducer. The optical fibers guide the laser light to the target tissue, inducing a thermoelastic expansion response and acoustic waves that are then captured by the ultrasound transducer.

The research conducted by the Jokerst Bioimaging Lab at the University of California San Diego revealed significant limitations with existing 3D printed jackets for optical fiber cables. These jackets are prone to breakage at latch points, leading to challenges in securely retaining optical fiber cables and causing imaging issues such as misaligned fibers and motion artifacts. In response, the lab sponsored a project to develop a durable aluminum jacket capable of securely holding both optical fiber cables and ultrasound transducers.