Hip displacement apparatus

Claim 1

A device of use with a stationary surface for laterally displacing a patient's femur from its normal position of engagement with the patient's hip comprising: a mount for attachment to the stationary surface; a member for exerting controlled pressure against the femur when said member is placed in a predetermined position in contact with the patient; and an assembly for so moving said member relative to said mount that a sufficient amount of controlled pressure can be selectively exerted and maintained against the femur to laterally displace the femur from its normal position of engagement with the hip and said assembly being structured for so moving said member that said pressure can be selectively diminished, said assembly being structured to permit said member to be moved for exerting controlled pressure against the femur to accommodate a plurality of patient orientations; wherein said assembly comprises a carriage adapted for such selective angular attachment to said mount that said member can be moved at a predetermined angle relative to said mount; a guide movably connected to said carriage and having said member so mounted thereon that movement of said guide relative to said carriage moves said member at said predetermined angle relative to said mount; a lead screw so threadably associated with said carriage and so connected to said guide that rotation of said lead screw moves said guide relative to said carriage; means for rotating said lead screw; and means for mounting said member to said guide, said mounting means being structured for extension relative to said guide.

Claim 2

A device of use with a stationary surface for laterally displacing a patient's femur from its normal position of engagement with the patient's hip comprising: a mount for attachment to the stationary surface; a member for exerting controlled pressure against the femur when said member is placed in a predetermined position in contact with the patient; and an assembly for so moving said member relative to said mount that a sufficient amount of controlled pressure can be selectively exerted and maintained against the femur to laterally displace the femur from its normal position of engagement with the hip and said assembly being structured for so moving said member that said pressure can be selectively diminished, said assembly being structured to permit said member to be moved for exerting controlled pressure against the femur to accommodate a plurality of patient orientations; wherein said assembly comprises a carriage adapted for such selective angular attachment to said mount that said member can be moved at a predetermined angle relative to said mount; a guide movably connected to said carriage and having said member so mounted thereon that movement of said guide relative to said carriage moves said member at said predetermined angle relative to said mount; a lead screw so threadably associated with said carriage and so connected to said guide that rotation of said lead screw moves said guide relative to said carriage; means for rotating said lead screw; and means for mounting said member to said guide, said mounting means being structured for extension relative to said guide.