Brakes for mobile medical device

摘要

A brake system for a medical device, such as a cot, stretcher, bed, wheeled chair, or other medical device, includes a pin and toothed wheel arrangement wherein the selective insertion of a pin between teeth on the toothed wheel brakes the system, while the removal of the pin from between the teeth unbrakes the system. Multiple pins may be used with a single toothed wheel wherein the pins are offset from each other relative to the teeth so that, when one pin is inserted between teeth, the other pin is at least partially blocked from being inserted between the teeth. This effectively increases the resolution of the toothed wheel. The toothed wheel may be axially spaced from wheel(s) that roll on the ground. When so spaced, the toothed wheel, and all of the braking components associated therewith, may be enclosed within a housing separate from the rolling wheel(s).

主权项

1. A chair for transporting patients, said chair comprising:
a frame; a seat supported on said frame; a back rest supported by said frame and positioned adjacent a rear edge of said seat, said back rest providing support for a back of a patient seated in said chair; a plurality of wheels coupled to said frame to allow said chair to roll, a brake pedal rotatable about a pivot axis and adapted to brake a set of said wheels when the brake pedal is rotated about the pivot axis in a first circular direction; and a release pedal rotatable about the pivot axis and adapted to unbrake said set of wheels when the release pedal is rotated about the pivot axis in the first circular direction, wherein said brake pedal and said release pedal are interconnected such that pressing said brake pedal rotates the brake pedal in the first circular direction and causes the release pedal to rotate in a second circular direction, and pressing said release pedal rotates the release pedal in the first circular direction and causes the brake pedal to rotate in the second circular direction, the first circular direction being opposite to the second circular direction.