Hospital bed
AssigneeStryker Corporation
InventorsGuy Lemire, Marco Morin, Richard Pare
Life of this patent
Estimating the term…
Abstract
A patient bed includes a base, a patient support, and an elevation mechanism for raising or lowering the patient support relative to the base. The elevation mechanism comprises a first pair of arms and a second pair of arms, with both the pairs of arms mounted relative to the patient support and the base. The first pair of arms and the second pair of arms have pivot connections at the patient support, with the pivot connections of at least one pair of the pair of arms moving in a sinusoidal path when the patient support is raised or lowered with respect to the base.
Claims32
A patient bed comprising:
- a base;
- a patient support;
- and
- an elevation mechanism for raising or lowering said patient support relative to said base, said elevation mechanism comprising a first pair of arms and a second pair of arms, said pairs of arms mounted relative to said patient support and said base, said first pair of arms and said second pair of arms having pivot connections at said patient support, and said pivot connections of at least one pair of said pair of arms moving in a sinusoidal path when said patient support is raised or lowered with respect to said base.
A patient bed comprising:
- a base, said base having a longitudinal axis;
- a patient support mounted for movement relative to said base, said patient support having a head-end and a foot-end, said head-end of said patient support being aligned in a first vertical plane generally perpendicular to said longitudinal axis, and said foot-end being aligned in a second vertical plane generally perpendicular to said longitudinal axis and spaced from said first vertical plane;
- an elevation mechanism for raising or lowering said patient support relative to said base and being configured to (a) raise said foot-end relative to said head-end;
- and (b) raise said head-end relative to said foot-end;
- and
- said elevation mechanism being configured to move said patient support relative to said base in a manner to generally maintain said patient support between said first vertical plane and said second vertical plane when moving said patient support relative to said base.
A patient bed comprising:
- a base;
- a patient support;
- and
- an elevation mechanism for raising and lowering said support patient relative to said base, said elevation mechanism comprising a first pair of arms and a second pair of arms, said first pair of arms and said second pair of arms mounted relative to said patient support and said base, each of said arms having an upper arm portion and a lower arm portion, said upper arm portions pivotally mounted to said lower arm portions and at said patient support, said lower arm portions pivotally mounted at said base, each of said upper arm portions being biased upwardly relative to said lower arm portions by a spring force, said elevation system further including an actuator cooperating with each pair of said arms, said actuators selectively actuating to pivot the lower arm portions relative to said base, said lower arm portions being linked to said upper arm portions by linkages, said linkages configured to pivot said upper arm portions relative to said lower arm portions when said lower arm portions pivot about said base.
Dependencies are inferred from the claim text.