UNLV Researchers Use 3D Printing to Advance Sea Lion Surgical Training

Researchers at the University of Nevada, Las Vegas (UNLV) are developing advanced training models for marine mammal veterinary instruction by employing 3D printing and soft robotics. The core of this project involves creating highly accurate, three-dimensional printed replicas of a California sea lion's pelvic anatomy, specifically intended for practicing complex surgical procedures.

These synthetic constructs are engineered to closely mimic the tactile and physiological characteristics of live tissue. This fidelity is achieved by replicating flexibility, tissue density, and simulating circulatory dynamics through integrated features within the models. The methodology utilizes high-resolution volumetric imaging data sourced from both Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) scans of actual sea lions to blueprint the intricate internal structures.

By integrating principles from soft robotics, the research further enhances the realism of the models, allowing them to replicate the resilience and natural contractility associated with genuine muscle tissue. This technological approach offers an ethical advancement over traditional training methods that previously relied on animal carcasses for simulating critical medical interventions, such as difficult blood collection techniques.

The precision of these custom-built models facilitates highly personalized surgical planning tailored to the unique anatomy of an individual patient sea lion. This interdisciplinary work connects wildlife conservation, advanced robotic engineering, and biomedical innovation, providing standardized, high-fidelity training solutions sought by marine mammal rescue centers and aquariums globally.

Further investigation suggests these models can be used to test novel surgical instruments or implant designs before clinical application on live animals. The fidelity achieved through volumetric data acquisition and advanced material science allows for repeatable, measurable training outcomes. Ongoing research at UNLV aims to expand the library of 3D-printed anatomical models to cover other critical areas of marine mammal physiology, supporting ethically sound advancements in animal care.