| 摘要 |
<p>A PROSTHETIC FEMORAL STEM FOR HEMIARTHROPLASTY OF HIP JOINT TO RESTORE MOVEMENT OF HIP JOINT BY RELIEVING PAIN ASSOCIATED WITH JOINT MOVEMENT, AND IMPROVING MOBILITY AND FUNCTION OF THE JOINT. THE PROSTHETIC FEMORAL STEM COMPRISES A HEAD PORTION (10), AN IRREGULAR HEXAGON-LIKE SHAPED NECK PORTION (20), AND A QUADRILATERAL SHAPED BODY PORTION (30). THE HEAD PORTION (10), WHICH INCLUDES A CONNECTION FOR RECEIVING A BALL OF THE FEMUR JOINT, IS CONNECTED TO THE QUADRILATERAL SHAPED BODY PORTION (30) VIA THE IRREGULAR HEXAGON-LIKE SHAPED NECK PORTION (20). THE QUADRILATERAL SHAPED BODY PORTION (30) INCLUDES A BROAD PROXIMAL PORTION (31) COATED WITH A LAYER OF HYDROXYAPATITE AT THE ANTERIOR MEDIAL, AND POSTERIOR SURFACES, A SHORT STEM (33) WITH A TIP (34) ATTACHED TO THE BOTTOM PORTION, AND A CAVITY (32) LOCATED AT THE CENTER OF SAID BROAD PROXIMAL PORTION (31). THE PROSTHETIC FEMORAL STEM CAN BE USED WITH OR WITHOUT THE AID OF BONE CEMENT. ACCOMPANYING DRAWING:</p> |
