Patent ID: 7473234

Claim:
A patient care system for positioning on a limb of a patient for assisting in flexion or extension of a joint of the limb, the system comprising: a first limb engaging assembly; a second limb engaging assembly; and a gear assembly linking the first and second limb engaging assemblies and operable to assist in either flexion or extension of the joint of the limb of the patient, the gear assembly including: first and second mounting arms pivotally mountable relative to one another, with the first mounting arm connected to the first limb engaging assembly and the second mounting arm connected to the second limb engaging assembly, a threaded shaft rotatably mounted on a mount, the mount being pivotally connected to the first mounting arm, and a toothed gear rotatably mounted to the first mounting arm and fixedly mounted to the second mounting arm, and wherein the mount may be pivotally moved to engage the threaded shaft with the toothed gear and the threaded shaft rotated to rotate the toothed gear and change the position of the second mounting arm relative to the first mounting arm.