Patient support apparatus with hydraulic oscillation dampening

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12090104
APP PUB NO 20230329932A1
SERIAL NO

18215544

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A patient transport apparatus with a base, a litter comprising a support surface, and a lift mechanism to facilitate arranging the litter at different heights relative to the base between a plurality of lift configurations including a fully-retracted configuration and a fully-extended configuration. The lift mechanism includes an actuator including a cylinder, fluid reservoir, and a pump driven by a motor to direct hydraulic fluid from the fluid reservoir to the cylinder. A sensor outputs a signal indicative of a magnitude of pressure in the cylinder. A user interface with an input control is provided. A controller determines a target parameter for the motor and, in response to user engagement with the input control, drives the motor at the target parameter to effect movement of the litter relative to the base at a predetermined rate irrespective of a weight of a patient supported on the litter.

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Patent Owner(s)

  • STRYKER CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lear, Craig St. Joseph, US 4 15
Lucas, Ross Timothy Paw Paw, US 23 317
Mansfield, Joshua Alan Lawton, US 19 69

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