Multi-axis joint for a spar of a limb holder

摘要

A patient support apparatus includes a surgical table and a limb support unit coupled to the surgical table. The limb support unit includes a support platform coupled to the surgical table in a fixed position, a first limb holder coupled to the support platform in a fixed position relative to the support platform, and a second limb holder coupled to the support platform and spaced apart from the first limb holder. The first limb holder includes a multi-axis joint coupled to the support platform in a fixed position and a spar coupled to the multi-axis joint to move relative to the support platform while supporting a patient's limb that has been coupled to the spar.

主权项

1. A limb holder comprising
a joint mount adapted to couple to a platform in a fixed position, a spar extending in an outward direction away from the joint mount and adapted to couple to a patient's foot and retain the patient's foot in tension during movement of the spar relative to the joint mount, and a multi-axis joint including a vertical-position lock and a horizontal-position lock, the horizontal-position lock interconnects the spar and the vertical-position lock and is movable between a blocking position in which movement of the spar and the vertical-position lock is blocked and an unblocking position in which the spar and the vertical-position lock are freed to move together relative to the joint mount, and the vertical-position lock interconnects the spar and the horizontal-position lock and is movable between a locked position in which the spar is blocked from moving relative to the horizontal-position lock and the joint mount and an unlocked position in which the spar is freed to move relative to the horizontal-position lock and the joint mount, wherein the multi-axis joint further includes a support platform and the horizontal-position lock lies between and interconnects the joint mount and the support platform to cause the support platform to move relative to the joint mount, wherein the multi-axis joint further includes a joint housing coupled to the support platform to move therewith and the vertical-position lock interconnects portions of the joint housing and the spar to cause portions of the joint housing and the spar to move relative to the support platform, and wherein the horizontal-position lock includes a stationary disk coupled to the support platform in a fixed position relative to the support platform, a set of movable pins coupled to the support platform and biased to extend away from the support platform toward the joint mount, and a movable disk coupled to the joint mount to move relative to the joint mount, the stationary disk, and the set of movable pins when the horizontal-position lock is in the unblocking position.