A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
3/104
A61F 2/32 (2006.01) A61F 5/04 (2006.01) A61F 2/00 (2006.01) A61F 2/30 (2006.01) A61F 2/34 (2006.01) A61F 2/36 (2006.01)
Patent
CA 1264501
ABSTRACT A ball and socket joint for implanting in the body is provided wherein the socket portion of the joint can have various orientations with respect to the patient's anatomy, and the orientation used for a particular patient can be selected and/or changed in situ, that is, during or after implantation of the joint. In addition, the configuration of the joint, e.g., constrained versus semi-constrained, as well as the materials making up the socket portion of the joint, e.g., plastic versus metal, can be selected and/or changed in situ. In certain preferred embodiments, the joint includes (1) a ball (2) a cup to be affixed to bone which includes (a) a spherical cavity and (b) two coaxial pin members which extend into the cavity; and (3) a bearing member surrounding a portion of the ball and rotatable within said cavity about said coaxial pin members, the bearing member having an asymmetric opening therein, the opening having an angular extent of less than 180° in at least one plane.
449027
Joint Medical Products Corporation
Uren John Russell
LandOfFree
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