The housing is the core component of MedJaw. It provides a solid, ergonomic base for all other parts to be mounted securely. Featuring an arc similar to that of the human jaw, it provides a base for the carriage system to slide. Marked slots on the side indicate hard-stop locations related to the range of motion of the mouthpiece. 

The lever is a key component in utilizing MedJaw. Mounting directly to the housing, the lever actuates the device by interacting with the carriage system and was designed to be extremely ergonomic. Pressing the lever moves the bottom mouthpiece down along the housing, allowing the user to slowly open their mouth. 

The Ball joint Arm connects directly to the lever and carriage system to drive the motion of the bottom mouthpiece. Driven by the lever, it is an essential part of MedJaw and was designed with a high degree of articulation while remaining quite strong. 

The spring is an essential safety mechanism of MedJaw. Marked with accurate measurements translating to the motion of the mouthpieces, it provides a restorative force that allows patients to close the device without the need to close their jaw in case of an emergency. Tested and iterated rigorously, this spring defies traditional beliefs related to 3D-printing fatigue life and provides MedJaw with a viable elastic force over thousands of cycles. 

The Slider Carriage was a particularly difficult part to engineer as it is a core component of the motion of the device, but must fit inside the tight constraints of the housing while also being strong enough to absorb all applied force from both the mouthpiece and Balljoint Arm. 

Though simple looking, the sliders are the most important components of the MedJaw device relating to friction. Earlier iterations of the device failed primarily due to jamming and friction. This design was iterated heavily into what it is today and is crucial to the movement of the device. Moving along the Slider Rails, the Sliders help translate the force applied to the carriage into motion. 

The slider rails provide a smooth surface for the sliders to move along. Though simple looking, these rails took many iterations to perfect and are made to last throughout the entire lifespan of MedJaw. 

The top mouthpieces press fit onto the MedJaw housing and interact directly with the patient's mouth. Infused with silver, they have antibacterial properties to enhance their lifespan and ensure patient safety. 

Also made with a filament infused with silver, the bottom mouthpiece press fits onto the slider carriage and serves as the main part of the device that articulates the patient's mouth.  Modeled based on dental record data, these mouthpieces are designed for comfort and safety. 

The lever pin holds the lever and balljoint arm in place. This pin press fits into the lever while allowing the balljoint arm to rotate smoothly and freely, creating a low friction connection.