Hip and knee joint assemblies incorporating debris collection architecture between the ball and seat interface

A joint implant assembly, comprising:

• a spherical shaped component mounted atop a stem and adapted to securing to an end of a first joint defining bone;
• a semi-spherical shaped component adapted to securing to an end of a second joint defining bone and within which is seated said spherical shaped component in inter-articulating supported fashion;
• each of said components establishing an opposing wear surface at which microscopic sized particles abraded from said components build up over time resulting from prolonged use of said joint;
• and
• a plurality of elongated and conical shaped entrapment chambers distributed across said spherical shaped component, each of said chambers including a narrow-most diameter entranceway locations communicating with said wear surface corresponding to a smallest diameter, said entrapment chambers each exhibiting progressively inwardly widening capture profiles extending away from said narrow-most entranceway locations and through said spherical shaped component and so that a diameter of each of said entrapment chambers at any location farther away from said entranceway location is larger than a corresponding diameter at any location closer to said entranceway location, said entrapment chambers each terminating at an opposite inner surface of said spherical shaped component defining a thickness thereof, said stem inserting into said inner surface of said spherical shaped component and so that said profiles are radially directed toward said stem, such that a maximum diameter location of each entrapment chamber is located at an interface with said stem for securing volumes of said microscopic particles passing through said narrow-most entranceway locations, and in order to segregate said particles away from a wear zone defined between said wear surfaces.

A joint implant assembly, comprising:

• a concave seat component mounted to a pedestal supporting stem adapted to securing to a reconditioned end of a first joint defining bone, said concave seat component including a first exposed layer exhibiting first and second lateral recessed locations, said seat component further including a second planar base formed with said stem and upon which said concave seat is secured;
• an inter-articulating component incorporated into a second joint defining bone and having a pair of convex end surfaces adapted to being received upon said lateral recessed locations of said first layer;
• each of said components establishing an opposing wear surface at which microscopic sized particles abraded from said components build up over time resulting from prolonged use of said joint;
• and
• a plurality of elongated and conical shaped entrapment chambers distributed across each of said lateral recessed locations, each of said chambers including a narrow-most diameter entranceway locations communicating with said wear surface corresponding to a smallest diameter, said entrapment chambers each exhibiting progressively inwardly widening capture profiles extending away from said narrow-most entranceway locations and through said first exposed layer and so that a diameter of each of said entrapment chambers at any location farther away from said entranceway location is larger than a corresponding diameter at any location closer to said entranceway location, said entrapment chambers each terminating at a reverse surface of said exposed layer defining a thickness of said first layer in contact with said planar base, such that a maximum diameter location of each entrapment chamber is located at an interface with said planar base for securing volumes of said microscopic particles passing through said narrow-most entranceway locations, and in order to segregate said particles away from a wear zone defined between said wear surfaces.