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US 11,331,192 B2Granted
Frictionless hip joint
AssigneeNoel Raels Ortho Devices Incorporated
InventorHector Noel
Life of this patent
Estimating the term…
Abstract
An orthopedic prosthesis includes a head which internally accommodates the major motion of a patient, e.g., during walking, thereby reducing wear against a cup or liner. A neck may be utilized which rotates within the distal member about an axis aligned with the major motion of the patient. The orthopedic prosthesis may also include a sacrificial anode, a seal made of natural fibers, and utilize lubricant made of honey.
Claims11
An orthopedic hip prosthesis comprising:
- a prosthetic femoral neck sized and configured to be fixedly connected to a femur of a patient, the prosthetic femoral neck including a cylindrical axle extending from a proximal end and a femoral shank extending from a distal end, said axle defining an outer circumferential surface;
- a prosthetic femoral head configured to be rotationally connected to said prosthetic femoral neck, said prosthetic femoral head comprising a cylindrical recess defining an inner circumferential surface, wherein the axle of the prosthetic femoral neck is rotationally engaged within the recess of the prosthetic femoral head;
- a plurality of ball bearings positioned on a proximal end of the neck between said outer circumferential surface of said axle and said inner circumferential surface of said recess, said plurality of ball bearings disposed to restrict translational movement of said prosthetic femoral neck relative to said prosthetic femoral head, said plurality of ball bearings being retained inside an annular retention channel;
- a plurality of roller bearings positioned between said outer circumferential surface of the axle and said inner circumferential surface of the recess, the plurality of roller bearings disposed to support rotational movement between the prosthetic femoral head and the prosthetic femoral neck;
- and
- a naturally occurring, bio-compatible lubricant disposed within said orthopedic hip prosthesis between said cylindrical recess and said cylindrical axle, wherein said naturally occurring, bio-compatible lubricant comprises bee honey,
- wherein said annular retention channel is disposed proximally of said plurality of roller bearings on said neck,
- wherein said prosthetic femoral head and said prosthetic femoral neck are configured to accommodate coaxial motion of a hip joint.
5 more elements
Dependencies are inferred from the claim text.