A supplement dispensing mouthguard device is an apparatus that readily supplies supplements into the mouth of a user while the user is performing an exercise. The apparatus includes an upper U-shaped platform, a lower U-shaped platform, an inner curved wall, an outer curved wall, a main fastener, a supplement reservoir, at least one inlet, and a plurality of outlets. The upper U-shaped platform and the lower U-shaped platform protects the teeth. The inner curved wall and the outer curved wall protects the tongue and the inner walls of the cheeks of the user. The main fastener connects the upper U-shaped platform with the lower U-shaped platform and seals the at least one inlet. The supplement reservoir contains the desired supplement. The at least one inlet provides access into the supplement reservoir. The plurality of outlets distributes the supplement into the mouth of the user.

An accessory device and an immobilization system including the device are provided for positioning at least a portion of a patient's body relative to an immobilization device including a low temperature thermoplastic sheet. The accessory device may include a patient fixation portion and a lock portion. The patient fixation portion is attached to or inserted in the patient during use. The lock portion may extend distally from the patient fixation portion generally along a lock portion axis. The lock portion includes a shape, surface feature, or configuration, such that the low temperature thermoplastic sheet may be conformed to the outer surface of the lock portion of the accessory device, such that unintended separation of the accessory device from the low temperature thermoplastic sheet is prevented. Methods of forming the accessory device and immobilization system are also provided.

An ear plug includes an elongated body sized and shaped to be partially inserted into an ear canal of a wearer, in which the body includes a negative Poisson's ratio (NPR) polymer foam material having a Poisson's ratio of between 0 and −1. A mouth guard includes an arc-shaped element sized to be received into a mouth of a wearer. The arc-shaped element has an outer wall, an inner wall, and a biting wall connecting the outer wall and the inner wall. The outer wall, the inner wall, and the biting wall define a channel that is sized to receive upper teeth of the wearer or lower teeth of the wearer. The outer wall, the biting wall, or both includes a negative Poisson's ratio (NPR) material having a Poisson's ratio between 0 and −1.

An accessory device and an immobilization system including the device are provided for positioning at least a portion of a patient's body relative to an immobilization device including a low temperature thermoplastic sheet. The accessory device may include a patient fixation portion and a lock portion. The patient fixation portion is attached to or inserted in the patient during use. The lock portion may extend distally from the patient fixation portion generally along a lock portion axis. The lock portion includes a shape, surface feature, or configuration, such that the low temperature thermoplastic sheet may be conformed to the outer surface of the lock portion of the accessory device, such that unintended separation of the accessory device from the low temperature thermoplastic sheet is prevented. Methods of forming the accessory device and immobilization system are also provided.

A layered protective structure for protective garments and equipment is disclosed. The layered protective structure comprises three layers. The first layer is the outermost layer, and it is the most rigid of the layers and has first layer holes that have at their edges rim structures extending inward into the protective structure. The second layer is an elastic net-like structure that is configured to fit at least partly between the rim structures. The first layer and the second layer are on top of the third layer, which is the innermost of the layers (i.e., towards the user when the protective structure is in use). The third layer is made of a softer and more flexible material than the first layer. The second layer spreads the impact forces and conveys at least part of them to the third layer.

The diagnosed soft tissue or brain injury component of concussions is generally defined by the symptoms of the temporal lobe manifestations. However, there is an undiagnosed structural fractured component of concussions occurring within the jaw joint complex which is the focus of this invention. A precise imaging technique and the powerful 3D Cone beam scanning technology, together, have revealed fractures in temporal bones of the jaw joint space which supports the temporal lobe of the brain. These fractures are the results of the lower jaw impact forces that cause concussions and this mechanism account for a large percent of the concussions arising in sports and military operations. These fractures have never been considered, diagnosed, or treated in the management of concussions. Fracturing temporal bones in the jaw joint that supports the temporal lobe will certainly produce the symptoms of temporal lobe manifestations. With early detection, these fractures can be more rapidly healed, eliminating many temporal lobe symptoms of concussions. The device of the present invention reduces the risk of the lower jaw impact concussion and temporal bone fractures, while enhancing the ability to speak and orally communicate.

Systems and methods for sensing and monitoring various athletic performance metrics, e.g., during the course of a game, a practice, a training session, training drills, and the like, are described. These systems and methods can provide useful metrics for players and coaches relating to athletic performances in various sports, including various team sports.

A mandibular advance advancement device generally indicated by the numeral 1. The mandibular advancement device 1 having a first member 2 and a second member 3. The first member 2 is configured to fit substantially over a portion of the teeth of the upper jaw of a user and the second member 3 is configured to fit substantially over a portion of the teeth of the lower jaw of the user. The mandibular advancement device 1 further has an engagement arrangement 4, configured to be engagable upon a forward manipulation of the lower jaw by the user, to maintain the lower jaw of the user in a predetermined protruding position relative to the upper jaw of the user and the natural biting position of the lower jaw.

A system for sensing true positive impacts may include a sensing device configured for secured coupling to a user. The sensing device may include a sensor configured for sensing accelerations of an impact and for generating a signal based on the impact. The sensing device may also include a control sensor for sensing when the sensing device is in position for sensing. The sensing device may also include a computer-readable storage medium having instructions stored thereon for receiving and capturing the signal from the sensor, and comparing first and second signals from the control sensor to determine if the signal is a true positive signal. The system may also include a processor for processing the instructions to capture the signal, perform the comparing, and identify the signal as a true positive signal. Method of sensing true positive impacts and of workload monitoring are also provided.

A shock absorbing system for force attenuation, impact modification or reduction, employs an envelope having a chamber containing a first working fluid, the envelope deformable in response to the impulse to attenuate impact force. A plurality of resilient supplemental absorber elements dispersed within the chamber. The plurality of resilient supplemental absorber elements are deformable in response to the force to assist in attenuating impact force and provide additional resilient restoring force to return the envelope to a pre-impact shape. In alternative implementations, a unitary cell for energy dissipation employs an envelope having a chamber containing a first working fluid and an inner element contained within the chamber and having an inner chamber containing a second working fluid.