| 摘要 |
Disclosed is an implantable artificial intervertebral disc joint replacement device for implantation between adjacent vertebral bodies. The device allows selective positioning of a disc implant element and comprises translatable surfaces, a mechanism for translation, a means for bone attachment, and an integrated disc implant. The device can be used in the lumbar, thoracic, and cervical regions of the spine in single or multi-level configurations. When implanted in a patient, the device includes an upper (cranial) component and a lower (caudal) component attached to the vertebral body above and below the replaced intervertebral disc respectively, with the joint implant integrated into the translatable surfaces. Following implantation, precise positioning of the joint implant within the intervertebral space with respect to the spinal axis is then adjusted based upon the particular anatomical and functional needs of the individual patient to satisfy spinal range of motion and stability requirements. |
| 主权项 |
1. A total intervertebral disc replacement device comprising:
a cranial member, comprising:
a cranial base body;a cranial adjustable body coupled to the cranial base body, wherein the cranial adjustable body adjusts along a cranial AP axis with respect to the cranial base body;a cranial articular surface coupled to the cranial adjustable body; a caudal member, comprising
a caudal base body;a caudal adjustable body coupled to the caudal base body, wherein the caudal adjustable body adjusts along a caudal AP axis with respect to the caudal base body and wherein the caudal AP axis is parallel to the cranial AP axis; anda caudal articular surface coupled to the caudal adjustable body; and a joint comprising the cranial articular surface and the caudal articular surface, wherein the caudal articular surface moveably engages with the cranial articular surface. |
