Abstract: A brain injury reduction system provides a protective measure that temporarily or decreases venous drainage out of the intracranial compartment during or immediately before and during a sudden change in acceleration of an individual's head. Specifically, a wearable helmet or other wearable structure of the brain injury reduction system detects an impending collision and determines whether a protective measure is needed. If so, one or more actuation devices provides the protective measure to reduce venous drainage through one or both of the internal jugular veins or paravertebral venous plexus. A first actuation device stimulates a gag reflex or valsalva-like maneuver to reduce venous drainage through the paravertebral venous plexus. A second actuation device can physically compress the internal jugular veins.

Abstract: A urination funnel for receiving and transporting urine voided by a user into a suction canister system includes an inlet for receiving the urine voided by the user. The inlet is configured to conform in shape to an anatomy of the user around a urethra of the user. The urination funnel also includes an outlet for transporting the urine voided by the user to the suction canister system. The outlet is configured to engage with a suction hose of the suction canister system. The urination funnel also includes a contoured funnel body extending between the inlet and the outlet.

Abstract: A brain injury reduction system provides a protective measure that temporarily or decreases venous drainage out of the intracranial compartment during or immediately before and during a sudden change in acceleration of an individual's head. Specifically, a wearable helmet or other wearable structure of the brain injury reduction system detects an impending collision and determines whether a protective measure is needed. If so, one or more actuation devices provides the protective measure to reduce venous drainage through one or both of the internal jugular veins or paravertebral venous plexus. A first actuation device stimulates a gag reflex or valsalva-like maneuver to reduce venous drainage through the paravertebral venous plexus. A second actuation device can physically compress the internal jugular veins. Thus, the brain injury reduction system minimizes the detrimental impact that may occur due to the sudden change in acceleration of the individual's head.

Abstract: A brain injury reduction system provides a protective measure to reduce severity of brain injury caused by collision or blast. A sensing device of the system detects an impending or occurring event (e.g., collision or blast) in an environment surrounding the individual and sends information about the event to a controller of the system. The sensing device can be stationary or moves with the individual. Based on the information, the controller determines whether the event will likely cause brain injury to the individual. If so, the controller sends an instruction to an actuation device of the system to activate the protective measure. The actuation device uses transcutaneous electrodes to electrically simulate glottis closure and contraction of the abdominal musculature to induce a Valsalva-like maneuver. The Valsalva-like maneuver can increases the stiffness of the brain tissues in the intracranial compartment, and thus reduces the susceptibility of the brain tissues to deformation.

Abstract: A brain injury reduction system provides a protective measure that temporarily or decreases venous drainage out of the intracranial compartment during or immediately before and during a sudden change in acceleration of an individual's head. Specifically, a wearable helmet or other wearable structure of the brain injury reduction system detects an impending collision and determines whether a protective measure is needed. If so, one or more actuation devices provides the protective measure to reduce venous drainage through one or both of the internal jugular veins or paravertebral venous plexus. A first actuation device stimulates a gag reflex or valsalva-like maneuver to reduce venous drainage through the paravertebral venous plexus. A second actuation device can physically compress the internal jugular veins. Thus, the brain injury reduction system minimizes the detrimental impact that may occur due to the sudden change in acceleration of the individual's head.

Abstract: Ultrasound vibrometry is employed to determine the amount of bony in-growth (i.e., osteointegration) into a surgically implanted prosthetic component (or conversely, the degree of implant looseness). While specifically developed for assessing osteointegration for total ankle replacements, the technique has broader application to any joint arthroplasty device. With respect to ankle arthroplasty, a vibration is induced in a patient's ankle in a range of frequencies. A Doppler ultrasound unit scans the ankle, with an imaging plane focused on an implant surface. The vibrations input into the ankle are sinusoidal frequencies, in a range from 80-500 Hz. At a frequency determined to best facilitate vibration of the ankle (e.g., a resonant frequency), the output signal from the Doppler ultrasound is Fourier transformed so that the frequency components of the output signal can be observed. These output Fourier signatures have been shown to correspond to a graded response of implant osteointegration (or looseness).

Abstract: The present technology relates generally to devices for electronically registering a surgical patient to his or her own pre-surgical image scan and associated systems and methods. In some embodiments, a surgical navigation registration device configured in accordance with the technology comprises a patient-specific inner surface having at least one contour element that matches a contour of an outer surface of at least a portion of the patient's anatomy, and at least three registration pathways incorporated in the device and configured to mate with the tip of a surgical navigation system tool, such as a pointer. The registration pathways may be configured to enable the tip of the surgical navigation system tool to directly contact the patient's anatomy or, alternatively, to prevent the tip of the surgical navigation system tool from directly contacting the patient's anatomy. The registration pathways may comprise channels that extend through the patient-specific inner surface.

Abstract: Ultrasound vibrometry is employed to determine the amount of bony in-growth (i.e., osteointegration) into a surgically implanted prosthetic component (or conversely, the degree of implant looseness). While specifically developed for assessing osteointegration for total ankle replacements, the technique has broader application to any joint arthroplasty device. With respect to ankle arthroplasty, a vibration is induced in a patient's ankle in a range of frequencies. A Doppler ultrasound unit scans the ankle, with an imaging plane focused on an implant surface. The vibrations input into the ankle are sinusoidal frequencies, in a range from 80-500 Hz. At a frequency determined to best facilitate vibration of the ankle (e.g., a resonant frequency), the output signal from the Doppler ultrasound is Fourier transformed so that the frequency components of the output signal can be observed. These output Fourier signatures have been shown to correspond to a graded response of implant osteointegration (or looseness).