ApplicationNo. 05/688994 filed on 05/24/1976
US Classes:623/22.45Including an intermediate coupler between joint head and protruding means
ExaminersPrimary: Frinks, Ronald L.
Attorney, Agent or Firm
Foreign Application Priority Data1975-06-03 CH
AbstractThe joint head is mounted via a sleeve of a cup-shaped member to rotate and move axially relatively to a pin on the prosthesis stem while at least one groove-like recess is formed between the sleeve and joint head to allow passage of lubricant. The movement of the joint head produces a "reciprocating pump" effect on the lubricating fluid.