Patent RU-2550973-C2 (RU)
Inventor: KRISTENSEN FINN B JARKE
IPC: A61F2/44
Filed: 2012-03-08
Granted: 2015-05-20
Abstract: FIELD: medicine. 
     SUBSTANCE: group of inventions relates to medicine. A disc implant contains the first and second intervertebral elements. The first intervertebral element forms the first internal surface, which contains the first central area, and the first external surface. The second intervertebral element forms the second internal surface, which contains the second central area, and the second external surface. The first and second internal surfaces of the first and second intervertebral elements are adapted to placement in a smoothed, directed towards each other position. The first and second external surfaces of the first and second intervertebral elements are adapted to placement in a position, directed from each other, and are made with a possibility of placement adjacently to the respective vertebrae of the patient's vertebral column. The first central area forms the first profile, made with a possibility of placement in the medial-lateral direction relative to the said patient's vertebral column, which is formed by one arc, and the second profile, made with a possibility of placement in the anterior-posterior direction relative to the patient's vertebral column, which (i) passes from the anterior edge of the first central area to the posterior edge of the first central area and ii) is formed by at least two arcs. The second central area is formed by the first profile, made with a possibility of placement in the medial-lateral direction relative to the patient's vertebral column, formed by one arc. The second profile is made with a possibility of placement in the anterior-posterior direction relative to the patient's vertebral column, which passes (i) from the anterior edge of the second central area to the posterior edge of the second central area and (ii) is formed by a straight line. A unit of the disc implant and a device of the posterior vertebral column stabilisation contain the disc implant, adapted to placement between two vertebrae of the patient's vertebral column, and a device of the posterior stabilisation of the vertebral column. The disc implant is adapted to placement between two vertebrae of the patient's vertebral column and includes the first intervertebral element, forming the first internal surface, which contains the first central area, and the first external surface; and the second intervertebral element, which forms the second internal surface, which contains the second central area, and the second external surface. The first and second internal surfaces of the first and second intervertebral elements are adapted to placement in a smoothed, directed to each other position. The first and second external surfaces of the first and second intervertebral elements are adapted to placement in a position directed from each other, and are made with a possibility of placement adjacently to the respective vertebrae of the patient's vertebral column. The first central area forms first the profile, made with a possibility of placement in the medial-lateral direction relative to the said patient's vertebral column, formed by one arc, and the second profile, made with a possibility of placement in the anterior-posterior direction relative to the patient's vertebral column, which passes from the anterior edge of the first central area to the posterior edge of the first central area and is formed by at least two arcs. The second central area is formed by the first profile, made with a possibility of placement in the medial-lateral direction relative to the patient's vertebral column, which is formed by one arc and the second profile, made with a possibility of placement in the anterior-posterior direction relative to the patient's vertebral column, which passes from the anterior edge of the second central area to the posterior edge of the second central area and is formed by a straight line. The device of the posterior stabilisation of the vertebral column provides the support of at least the disc implant and two vertebrae. 
     EFFECT: inventions provide the movement of the first and second intervertebral elements relative to each other after implantation and after mobilisation of the patient, which makes it possible for the implant to take the required position depending on the specific and individual spinal-pelvic balance of the patient in an initial period of time after implantation, with the first and second intervertebral elements becoming immobile with respect to each other later, ie inoculated. 
     20 cl, 21 dwg