Apparatus for positioning a patient-support deck
First Claim
1. A patient-support apparatus comprisinga base, a patient-support deck having a longitudinal length and a transverse width, and a deck-positioning assembly coupling the patient-support deck to the base, the patient-support deck being supported with respect to the deck-positioning assembly for longitudinal movement, the deck-positioning assembly including an actuator having a first portion and a second portion that moves transversely relative to the first portion, and the deck-positioning assembly including a transmission assembly configured to convert transverse movement of the second portion relative to the first portion into longitudinal movement of the patient-support deck relative to the base.
2 Assignments
0 Petitions
Accused Products
Abstract
A patient-support apparatus that comprises a base, a patient-support deck having a longitudinal length and a transverse width, and a deck-positioning assembly coupling the patient-support deck to the base. The patient-support deck is supported with respect to the deck-positioning assembly for longitudinal movement. The deck-positioning assembly includes an actuator having a first portion and a second portion that moves transversely relative to the first portion. The deck-positioning assembly includes a transmission assembly configured to convert transverse movement of the second portion relative to the first portion into longitudinal movement of the patient-support deck relative to the base.
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Citations
43 Claims
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1. A patient-support apparatus comprising
a base, a patient-support deck having a longitudinal length and a transverse width, and a deck-positioning assembly coupling the patient-support deck to the base, the patient-support deck being supported with respect to the deck-positioning assembly for longitudinal movement, the deck-positioning assembly including an actuator having a first portion and a second portion that moves transversely relative to the first portion, and the deck-positioning assembly including a transmission assembly configured to convert transverse movement of the second portion relative to the first portion into longitudinal movement of the patient-support deck relative to the base.
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9. A patient support apparatus comprising
a base, a patient-support deck having a longitudinal length and a transverse width, a mattress supported by the patient-support deck and having an upwardly facing patient-support surface, a deck-positioning assembly coupling the patient-support deck to the base. the patient-support deck and mattress being supported with respect to the deck-positioning assembly for longitudinal movement, the deck-positioning assembly including a shaft having a transverse axis of rotation, a pinion coupled to the shaft, and a rack coupled to the patient-support deck, the pinion engaging the rack such that rotation of the shaft about the transverse axis longitudinally moves the patient-support deck and the mattress relative to the base, and a driver coupled to the shaft and actuatable to rotate the shaft, wherein the shaft is formed to include threads, the driver includes a ball nut mounted on the shaft in engagement with the threads so that axial movement of the ball nut along the shaft causes rotation of the shaft, and the driver includes a linear actuator coupled to the ball nut so that actuation of the linear actuator moves the ball nut axially along the shaft.
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13. A patient-support apparatus comprising
a base a patient-support deck having a longitudinal length and a transverse width. a mattress supported by the patient-support deck and having an upwardly facing patient-support surface, a deck-positioning assembly coupling the patient-support deck to the base, the patient-support deck and mattress being supported with respect to the deck-positioning assembly for longitudinal movement, the deck-positioning assembly including a shaft having a transverse axis of rotation, a pinion coupled to the shaft, and a rack coupled to the patient-support deck, the pinion engaging the rack such that rotation of the shaft about the transverse axis longitudinally moves the patient-support deck and the mattress relative to the base, and a driver coupled to the shaft and actuatable to rotate the shaft, the driver being positioned beneath the shaft.
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17. A patient-support apparatus comprising
a base, a patient-support deck having a longitudinal length and a transverse width. a mattress supported by the patient-support deck and having an upwardly facing patient-support surface, and a deck-positioning assembly coupling the patient-support deck to the base, the patient-support deck and mattress being supported with respect to the deck-positioning assembly for longitudinal movement, the deck-positioning assembly including a shaft having a transverse axis of rotation, a pinion coupled to the shaft, and a rack coupled to the patient-support deck, the pinion engaging the rack such that rotation of the shaft about the transverse axis longitudinally moves the patient-support deck and the mattress relative to the base, wherein the shaft is formed to include threads, the deck-positioning assembly includes a ball nut mounted on the shaft in engagement with the threads, axial movement of the ball nut along the shaft causes rotation of the shaft, the deck-positioning assembly includes an actuator coupled to the ball nut, the actuator includes a cylinder and a piston rod that extends and retracts relative to the cylinder along an axis that is parallel to the transverse axis, and movement of the piston rod relative to the cylinder moves the ball nut axially along the shaft to produce longitudinal movement of the patient-support deck and the mattress.
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18. A patient-support apparatus comprising
a base, a patient-support deck having a longitudinal length and a transverse width, and a deck-positioning assembly coupling the patient-support deck to the base, the patient-support deck being supported with respect to the deck-positioning assembly for longitudinal movement, the deck-positioning assembly including a threaded shaft supported for rotation about a transverse axis, a pinion coupled to the shaft, a rack coupled to the patient-support deck, the pinion engaging the rack, a ball nut coupled to the threaded shaft, and an actuator coupled to the ball nut and actuatable to move the ball nut axially along the threaded shaft to rotate the threaded shaft and pinion resulting in longitudinal movement of the patient-support deck relative to the base.
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27. A patient-support apparatus comprising
a base, a patient-support deck having a longitudinal length and a transverse width, and a deck-positioning assembly coupling the patient-support deck to the base, the patient-support deck being supported with respect to the deck-positioning assembly for longitudinal movement, the deck-positioning assembly including a shaft rotatable about a transverse axis between a first position and a second position, a rack coupled to the patient-support deck, and a lock assembly coupled to the shaft, the lock assembly including a member that moves in response to rotation of the shaft, the member engaging the rack when the shaft is in the first position to prevent longitudinal movement of the patient-support deck relative to the base, and the member being disengaged from the rack when the shaft is in the second position to allow longitudinal movement of the patient-support deck relative to the base.
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37. A patient-support apparatus comprising
a base, a patient-support deck having a longitudinal length and a transverse width, and a deck-positioning assembly coupling the patient-support deck to the base, the patient-support deck being supported with respect to the deck-positioning assembly for longitudinal movement, the deck-positioning assembly including a member that is movable between a first position preventing longitudinal movement of the patient-support deck relative to the base and a second position allowing longitudinal movement of the patient-support deck relative to the base, the lock assembly further including a shaft rotatable about a transverse axis to move the member between the first position and the second position.
Specification