Lift assembly for patient support apparatus
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United States of America Patent
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Sep 14, 2021
Grant Date -
Oct 22, 2020
app pub date -
Jul 7, 2020
filing date -
Feb 26, 2016
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A patient support apparatus comprises a base and a support frame. The patient support apparatus also comprises a lift assembly that operates to lift and lower the support frame relative to the base. The lift assembly comprises lift members that extend and collapse to lift and lower the support frame. A timing link is pivotally connected to one of the lift members and pivotally connected to the base. Guides operate to guide movement of the lift members during operation. In some cases guided bodies coupled to the lift members move passively in the guides. In other embodiments, driven members coupled to the lift members move actively in the guides to cause lifting and lowering of the support frame.
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