Gurney system for transporting injured persons
OwnerMiguel Zepeda-Rosalesinventor
Life of this patent
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Abstract
A motorized stretcher system designed for efficient and secure transport of injured individuals across uneven surfaces. The system comprises a litter secured to a suspension frame, which is connected to a central hub housing a motor, tire, brake rotor, and caliper. The litter is contoured to safely hold an injured person, with adjustable ratchet straps and side rails providing additional security. The motor, controlled via a throttle and directional switch, drives the tire to propel the stretcher in multiple directions. A suspension system, incorporating multiple dampers, absorbs vibrations and stabilizes the litter across uneven surfaces. Powered by a battery assembly, the motor provides sufficient torque to traverse challenging environments while ensuring smooth and controlled transport.
Claims20
A motorized gurney system for transporting an injured person, comprising:
- a. a suspension frame operable to support a litter for securing the injured person;
- b. a wheel and a central hub including a planetary gear system, a motor, and a braking system within the central hub that selectively disengages the planetary gear system, the central hub configured to propel the gurney system across multiple terrains;
- and
- c. a plurality of dampers positioned around a perimeter of the suspension frame, the dampers operable to absorb vibrations along multiple axes to stabilize the litter.
A motorized gurney system for transporting injured persons over rough terrains, comprising:
- a. a suspension frame including first and second supporting plates and a plurality of dampers positioned to absorb vibrations along x, y, and z axes;
- b. a litter within the suspension frame, the litter having a contoured surface and perimeter side rails to secure an injured person;
- c. a central hub comprising a tire, a motor, a braking system, a planetary gear train, and wheel in mechanical connection with the planetary gear train, wherein the braking system is operable to selectively disengage the planetary gear system;
- and
- d. a directional switch, throttle lever, and brake lever on handles connected to the suspension frame, the levers and switch electronically connected to a motor controller to adjust motion, speed, and braking of the gurney system.
A method of operating a gurney system, the method comprising:
- a. selecting a direction of travel with a directional switch located on handles attached to the suspension frame, the directional switch in electronic communication with a motor controller;
- b. activating a throttle lever on the handles to transmit a control signal from the motor controller to a motor within a central hub, wherein the motor drives a planetary gear system operably coupled to a tire to provide variable torque output for controlled movement of the gurney system over different terrains;
- c. using a braking mechanism within the central hub to selectively disengage the planetary gear system, thereby preventing unintended motion;
- d. absorbing multidirectional vibrations experienced by the gurney system during movement through a plurality of dampers arranged along a perimeter of the suspension frame, each damper configured to reduce oscillations along x, y, and z axes, enhancing stability for the injured person.
Dependencies are inferred from the claim text.