A patient litter basket spin control assembly for use on a patient litter basket is provided. The assembly comprises thruster unit for discharging an air stream and is mounted on the patient litter basket. At least one sensor is associated with the thruster unit for sensing rotational movement or spin of the patient litter basket, and a power source is provided for powering the thruster unit and the sensor. A clamp member mounts on the patient litter basket and releasably receives the thruster unit. The sensors modulate the force of the air stream from the thruster unit so that the air stream counters the rotational movement of the patient litter basket to stabilize the patient litter basket by preventing the spin.

A vehicle interlock system includes a wheelchair fixing device configured to fix a wheelchair to a vehicle, a seatbelt device having a seatbelt configured such that, an occupant seated in the wheelchair wears the seatbelt, and a control unit. The control unit is configured to limit at least one of an upper limit traveling speed and an upper limit acceleration of the vehicle or output a warning signal, or to output a warning signal while limiting at least one of the upper limit traveling speed and the upper limit acceleration of the vehicle depending on at least one of the following conditions: whether the wheelchair is fixed to the vehicle with the wheelchair fixing device; whether the occupant is wearing the seatbelt; and so forth.

A patient litter basket spin control assembly for use on a patient litter basket is provided. The assembly comprises thruster unit for discharging an air stream and is mounted on the patient litter basket. At least one sensor is associated with the thruster unit for sensing rotational movement or spin of the patient litter basket, and a power source is provided for powering the thruster unit and the sensor. A clamp member mounts on the patient litter basket and releasably receives the thruster unit. The sensors modulate the force of the air stream from the thruster unit so that the air stream counters the rotational movement of the patient litter basket to stabilize the patient litter basket by preventing the spin.

A spring supported tray for mitigating a dominant frequency imparted thereto is provided. The spring supported tray includes a tray including a topside and underside, and configured to support an object on the topside, and N springs supporting the tray, N being a positive integer. A first end of each of the N springs is disposed at the underside of the tray. A second end of each of the N springs is disposed so as to receive vibrational motion imparted to the second end of each of the N springs from a source of the vibrational motion, the vibrational motion having a dominant undesired frequency f.sub.dom. Each of the N springs has a spring constant k defined by the equation: $k=\frac{f_n^{2}4{\pi }^{2}w}{\mathrm{Ng}}$
where w denotes the collective weight of the tray and the object, g denotes the force of gravity, and f.sub.n denotes a natural frequency of the spring supported tray supporting the object, wherein f.sub.n is a lower frequency than the dominant undesired frequency f.sub.dom.

A backrest device that normally supports the occupant and moves forward with said occupant during a forward impact/crash event. The device is equipped with a spring activated biased ratcheting mechanism that provides only forward movement, thus reducing the amount of dangerous rear excursion during the rebound phase, as measured by the occupant's head and torso.

Disclosed are an emergency vehicle supporting device and system using a drone that resolve forward traffic congestion on a road on which an emergency vehicle is driving via the drone and supports securing of a driving path for the emergency vehicle. According to the present invention, an emergency vehicle supporting device mounted on the emergency vehicle generates drone control information and transmits the generated drone control information to the drone. Further, the drone flies according to the drone control information and a location change of the emergency vehicle and broadcasts an avoidance warning to surrounding vehicles around the flying drone, so that the surrounding vehicles may help the emergency vehicle secure a driving path and thus the emergency vehicle may arrive at a destination within a desired time.

A rapid water ambulance for transport of patients, comprising a sick bay solidly constrained to a structure of the water ambulance and support apparatus (10) for a stretcher, the support apparatus (10) comprises: a support column (20), a carriage (30) slidable along the column (20) in the direction of the axis (A) thereof, a support plane (11) for a stretcher, borne projectingly by the carriage (30) and solidly constrained thereto, a damped suspension device (33), constrained to the carriage (30) and to the column (20), which supports the support plane (11) at an operating height, wherein the axis (A) of the support column (20) is inclined with respect to the perpendicular direction to a floor (P) plane of the sick bay and lies in a vertical plane parallel to the motion direction of the water ambulance.

A pad of vibration-reducing foam is interposed between a spineboard and a litter that are secured together by straps. The pad has a pad upper surface contoured to receive and substantially mate with a spineboard lower surface to block horizontal motion therebetween, and a pad lower surface with a substantially planar support region. The pad can be formed of more than one layer of foam, with each layer having different vibration-damping characteristics. Material costs can be reduced by employing a discontinuous pad formed by a pad head segment and a pad foot segment. When a full-length pad is employed, separate straps for engaging the spineboard and the litter can be provided, with the pad interposed between the straps to prevent transmission of vibrations through the straps. The pad can be configured to offset the spineboard on the litter and allow a portable ICU to be placed alongside the spineboard.

A pre/post-tensioning controller system for a wheelchair tie-down and occupant restraint system (“WTORS”) will be a comprehensive energy management system for controlling excessive excursions of a wheeled mobility device during various adverse driving scenarios. The system uses multiple pre-tensioning and post-tensioning events during a front, side, or rear impact crash or rollover scenario—and effectively controls excursions by the tensioning of the WTORS equipment at specific and ideal moments. The system also uses tensioning events on the tie-down equipment during a long duration turn or other aggressive maneuvers. The system may also use tensioning events on the occupant restraints. The energy management system can be adapted for use with traditional four-point tie-downs and newer three- and two-point tie-down systems that incorporate fixed or movable bumpers, as well as compressive-type securement systems, and other systems as well, including docking systems.

A computing device is provided to monitor or ascertain various characteristics of one or more of a wheeled mobility device securement system, a wheeled mobility device, and an occupant of the wheeled mobility device. The computing device can send any and all data available to it, including but not limited to time, dynamic information concerning the vehicle, the wheeled mobility device securement system, the wheeled mobility device, and the occupant, the actions taken by the computing device during an adverse driving condition, and when those actions were taken, to memory for use after the adverse driving event for analysis purposes to understand and recreate the event.