Artificial joint components including integral magnetic fields configured to deflect wear debris particles
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 first structural component of the artificial joint prosthesis including a load-bearing surface of the artificial joint prosthesis, the first structural component fabricated from at least one polymer and a plurality of magnetic particles arranged as a magnetic polymer nanocomposite material; and
a second structural component of the artificial joint prosthesis including at least one magnet configured to create a magnetic field within the artificial joint, the at least one magnet positioned to form a magnetic field directed to influence a location of debris including the magnetic particles in the joint to a position distinct from the bone-prosthesis interface in vivo.
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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 first component of the artificial joint prosthesis including a contact surface of the artificial joint prosthesis, the first component fabricated from at least one polymer and a plurality of magnetic particles; and a second component of the artificial joint prosthesis including at least one magnet configured to create a magnetic field within the artificial joint, the at least one magnet positioned to form a magnetic field directed to influence a location of debris including the magnetic particles in the joint to a position distinct from the bone-prosthesis interface in vivo.
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Citations
35 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 first structural component of the artificial joint prosthesis including a load-bearing surface of the artificial joint prosthesis, the first structural component fabricated from at least one polymer and a plurality of magnetic particles arranged as a magnetic polymer nanocomposite material; and a second structural component of the artificial joint prosthesis including at least one magnet configured to create a magnetic field within the artificial joint, the at least one magnet positioned to form a magnetic field directed to influence a location of debris including the magnetic particles in the joint to a position distinct from the bone-prosthesis interface in vivo.
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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 first component of the artificial joint prosthesis including a contact surface of the artificial joint prosthesis, the first component fabricated from at least one polymer including a plurality of magnetic particles embedded in a polymer matrix; and a second component of the artificial joint prosthesis including at least one magnet configured to create a magnetic field within the artificial joint, the at least one magnet positioned to form a magnetic field directed to influence a location of debris including the magnetic particles in the joint to a position distinct from the bone-prosthesis interface in vivo. - View Dependent Claims (3, 4, 5, 6, 7, 8)
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9. An artificial hip joint prosthesis, comprising:
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a bone-facing surface of an artificial hip joint prosthesis, the bone-facing surface configured to face a bone-prosthesis interface in vivo; a first component of the artificial hip joint prosthesis including a contact surface of the artificial hip joint prosthesis, the first component fabricated from at least one polymer including a plurality of magnetic particles embedded in a polymer matrix; and a second component of the artificial hip joint prosthesis including at least one magnet configured to create a magnetic field within the artificial hip joint, the at least one magnet positioned to form a magnetic field directed to influence a location of debris including the magnetic particles in the joint to a position distinct from the bone-prosthesis interface in vivo. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. An artificial knee joint prosthesis, comprising:
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a bone-facing surface of an artificial knee joint prosthesis, the bone-facing surface configured to face a bone-prosthesis interface in vivo; a first component of the artificial knee joint prosthesis including a contact surface of the artificial knee joint prosthesis, the first component fabricated from at least one polymer including a plurality of magnetic particles embedded in a polymer matrix; and a second component of the artificial knee joint prosthesis including at least one magnet configured to create a magnetic field within the artificial knee joint, the at least one magnet positioned to form a magnetic field directed to influence a location of debris including the magnetic particles in the joint to a position distinct from the bone-prosthesis interface in vivo. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. An artificial shoulder joint prosthesis, comprising:
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a bone-facing surface of an artificial shoulder joint prosthesis, the bone-facing surface configured to face a bone-prosthesis interface in vivo; a first component of the artificial shoulder joint prosthesis including a contact surface of the artificial shoulder joint prosthesis, the first component fabricated from at least one polymer including a plurality of magnetic particles embedded in a polymer matrix; and a second component of the artificial shoulder joint prosthesis including at least one magnet configured to create a magnetic field within the artificial shoulder joint, the at least one magnet positioned to form a magnetic field directed to influence a location of debris including the magnetic particles in the joint to a position distinct from the bone-prosthesis interface in vivo. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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Specification