Rachet locking brake for medical devices

Details Rachet locking brake for medical devices Rachet locking brake for medical devices

2007-07-17

2007-07-17

Williams, Thomas (Department: 3683)

Brakes

Vehicle

Ground-engaging

C188S005000, C188S032000

Reexamination Certificate

active

09690272

ABSTRACT:
An apparatus is provided for securely positioning a medical device that prevents movement of one end of the device by applying a single force. The apparatus allows a doctor to depress a pedal, which is connected to a pedal housing by way of a single shaft. Connected to the ends of the shaft are two separate linkage members. The first linkage member is attached to a ratcheting mechanism that steers the pedal into the locked position. The second linkage member is connected to a cam within the pedal housing that drives a spring-loaded plunger assembly. When the pedal is in the locked position the plunger assembly is in contact with the floor, thereby preventing movement of the device. To release the braking device, the doctor depresses the pedal slightly, which causes the ratcheting mechanism to allow the pedal, and therefore the plunger assembly, to return to their unlocked positions.

REFERENCES:
patent: 2236281 (1941-03-01), Anderson
patent: 2747692 (1956-05-01), Holmes
patent: 2922494 (1960-01-01), Clark, Jr.
patent: 3422929 (1969-01-01), Oja et al.
patent: 5806111 (1998-09-01), Heimbrock et al.
patent: 49-009888 (1974-01-01), None
patent: 63-150070 (1988-06-01), None
patent: 01-167212 (1989-11-01), None
patent: 04-331602 (1992-11-01), None
patent: 05-065315 (1993-08-01), None
patent: 06-005619 (1994-01-01), None
patent: 06-048102 (1994-02-01), None
patent: 09-140692 (1997-06-01), None
PCT International Search Report PCT/US03/36255 (Aug. 4, 2004).

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