Artificial joint components including mechanized synovial fluid deflecting structures and particle retaining structures
First Claim
1. An artificial joint prosthesis, comprising:
- a bone-facing surface of an artificial joint prosthesis, the bone-facing surface configured to face a bone-prosthesis interface in vivo;
a non-load bearing surface of the artificial joint prosthesis, the non-load bearing surface adjacent to the bone-facing surface of the artificial joint prosthesis;
an aperture in the non-contact surface of the artificial joint prosthesis;
a substantially round cavity in the artificial joint prosthesis adjacent to the aperture;
a mechanism including a substantially round element of a size and shape to correspond to the substantially round cavity, the substantially round element positioned to move within the substantially round cavity;
at least one fluid deflection structure attached to the substantially round element and projecting through the aperture; and
at least one particle retaining structure positioned to contact the directed flow of synovial fluid and configured to retain non-physiological particles present within the synovial fluid.
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Accused Products
Abstract
Prosthetic artificial joints are described, including hip, knee and shoulder joints. In some embodiments, an artificial joint prosthesis includes: a bone-facing surface of a artificial joint prosthesis, the bone-facing surface configured to face a bone-prosthesis interface in vivo; a non-contact surface of the artificial joint prosthesis, the non-contact surface adjacent to the bone-facing surface of the artificial joint prosthesis; at least one fluid deflection structure positioned adjacent to the non-contact surface, the fluid deflection structure positioned to deflect synovial fluid away from the bone-prosthesis interface in vivo; a mechanism attached to the fluid deflection structure, the mechanism operable to move the fluid deflection structure to direct synovial fluid away from the bone-prosthesis interface in vivo; and at least one particle retaining structure positioned to contact the directed flow of synovial fluid and configured to retain non-physiological particles present within the synovial fluid.
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Citations
33 Claims
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1. An artificial joint prosthesis, comprising:
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a bone-facing surface of an artificial joint prosthesis, the bone-facing surface configured to face a bone-prosthesis interface in vivo; a non-load bearing surface of the artificial joint prosthesis, the non-load bearing surface adjacent to the bone-facing surface of the artificial joint prosthesis; an aperture in the non-contact surface of the artificial joint prosthesis; a substantially round cavity in the artificial joint prosthesis adjacent to the aperture; a mechanism including a substantially round element of a size and shape to correspond to the substantially round cavity, the substantially round element positioned to move within the substantially round cavity; at least one fluid deflection structure attached to the substantially round element and projecting through the aperture; and at least one particle retaining structure positioned to contact the directed flow of synovial fluid and configured to retain non-physiological particles present within the synovial fluid.
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2. An artificial joint prosthesis, comprising:
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a bone-facing surface of an artificial joint prosthesis, the bone-facing surface configured to face a bone-prosthesis interface in vivo; a non-contact surface of the artificial joint prosthesis, the non-contact surface adjacent to the bone-facing surface of the artificial joint prosthesis; at least one fluid deflection structure positioned adjacent to the non-contact surface, the fluid deflection structure positioned to deflect synovial fluid away from the bone-prosthesis interface in vivo; a mechanism attached to the fluid deflection structure, the mechanism including piezoelectric material configured to move the fluid deflection structure to direct synovial fluid away from the bone-prosthesis interface in vivo; and at least one particle retaining structure positioned to contact the directed flow of synovial fluid and configured to retain non-physiological particles present within the synovial fluid. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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10. A hip joint prosthesis, comprising:
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a bone-facing surface of a hip joint prosthesis, the bone-facing surface configured to face a bone-prosthesis interface in vivo; a non-contact surface of the hip joint prosthesis, the non-contact surface adjacent to the bone-facing surface of the hip joint prosthesis; at least one fluid deflection structure positioned adjacent to the non-contact surface, the fluid deflection structure positioned to deflect synovial fluid away from the bone-prosthesis interface in vivo; a mechanism attached to the fluid deflection structure, the mechanism including piezoelectric material configured to move the fluid deflection structure to direct synovial fluid away from the bone-prosthesis interface in vivo; and at least one particle retaining structure positioned to contact the directed flow of synovial fluid and configured to retain non-physiological particles present within the synovial fluid. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A knee joint prosthesis, comprising:
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a bone-facing surface of a knee joint prosthesis, the bone-facing surface configured to face a bone-prosthesis interface in vivo; a non-contact surface of the knee joint prosthesis, the non-contact surface adjacent to the bone-facing surface of the knee joint prosthesis; at least one fluid deflection structure positioned adjacent to the non-contact surface, the fluid deflection structure positioned to deflect synovial fluid away from the bone-prosthesis interface in vivo; a mechanism attached to the fluid deflection structure, the mechanism including piezoelectric material configured to move the fluid deflection structure to direct synovial fluid away from the bone-prosthesis interface in vivo; and at least one particle retaining structure positioned to contact the directed flow of synovial fluid and configured to retain non-physiological particles present within the synovial fluid. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. A shoulder joint prosthesis, comprising:
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a bone-facing surface of a shoulder joint prosthesis, the bone-facing surface configured to face a bone-prosthesis interface in vivo; a non-contact surface of the shoulder joint prosthesis, the non-contact surface adjacent to the bone-facing surface of the shoulder joint prosthesis; at least one fluid deflection structure positioned adjacent to the non-contact surface, the fluid deflection structure positioned to deflect synovial fluid away from the bone-prosthesis interface in vivo; a mechanism attached to the fluid deflection structure, the mechanism including piezoelectric material configured to move the fluid deflection structure to direct synovial fluid away from the bone-prosthesis interface in vivo; and at least one particle retaining structure positioned to contact the directed flow of synovial fluid and configured to retain non-physiological particles present within the synovial fluid. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33)
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Specification