최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0711561 (2012-12-11) |
등록번호 | US-8870960 (2014-10-28) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 0 인용 특허 : 446 |
A total disc replacement (TDR) system for lateral insertion into the spine, involving a first anchor plate having a first surface for engaging a first vertebra and a second surface including a cutout region, a second anchor plate having a first surface for engaging a second vertebra and a second sur
A total disc replacement (TDR) system for lateral insertion into the spine, involving a first anchor plate having a first surface for engaging a first vertebra and a second surface including a cutout region, a second anchor plate having a first surface for engaging a second vertebra and a second surface including a cutout region, at least one pair of intradiscal inserts, each insert having a first surface for engaging with said anchor plates and a second surface for engaging with an intradiscal element, and an intradiscal element including a first articular surface having a generally arcuate cross-section for articulating with said first intradiscal insert, and a second generally planar surface for interacting with a second intradiscal insert.
1. A method for replacing an intervertebral disc comprising the step of: establishing an operative corridor to an intervertebral disc space via a lateral, trans-psoas surgical approach that leaves the Anterior Longitudinal Ligament (ALL) intact and includes monitoring nerves in the psoas muscle with
1. A method for replacing an intervertebral disc comprising the step of: establishing an operative corridor to an intervertebral disc space via a lateral, trans-psoas surgical approach that leaves the Anterior Longitudinal Ligament (ALL) intact and includes monitoring nerves in the psoas muscle with a neurophysiology based monitoring system to avoid damaging said nerves:preparing the intervertebral disc space for receipt of a disc replacement implant, the disc replacement implant including a first anchor plate with a first surface for contacting a first vertebra adjacent the disc space and a second interior surface having, an articulation recess integrally formed therein a second anchor plate having a third surface for contacting a second vertebra adjacent the disc space and a fourth interior surface, and an intradiscal element integrally joined with the fourth interior surface, the intradiscal element configured to articulate with the articulation recess, the first anchor plate and second anchor plate together having an implant length defined by a distance along an X-axis, the X-axis being generally parallel to the coronal plane when the implant is positioned within the interbody space, an implant width defined by a distance along a Z-axis, the Z-axis being generally parallel to the sagittal plane when the implant is positioned in the intervertebral space, the implant length being between 40 mm and 55 mm and the implant width being between 18 mm and 22 mm;simultaneously introducing the first anchor plate and second anchor plate through the lateral trans-psoas operative corridor into the intervertebral disc space such that the intradiscal element of the second anchor plate cooperates within the articulation recess of the first anchor plate to post-operatively allow motion between the first and second vertebrae. 2. The method according to claim 1, wherein said first anchor plate, second anchor plate, and said intradiscal element are formed of one or more of metals, metal alloys, ceramics, and polymers. 3. The method according to claim 2, wherein at least a portion of said first surface of said first anchor plate and at least a portion of said third surface of said second anchor plate is coated with zirconium oxide. 4. The method according to claim 1, wherein said first anchor plate, second anchor plate, and said intradiscal element are formed of the same material. 5. The method according to claim 1, wherein preparing said disc space comprises cutting the annulus of said intervertebral disc at a location contralateral to the operative corridor. 6. The method according to claim 1, comprising the additional step of: implanting an interbody implant within an additional intervertebral disc space one of adjacent to and remote from said intervertebral disc space and one of before and after introducing said disc replacement implant in said intervertebral disc space. 7. The method according to claim 1, comprising the additional step of: introducing said disc replacement implant into said intervertebral disc space with an insertion instrument, said insertion instrument being configured to ensure said disc replacement system is inserted in the proper anterior-posterior orientation. 8. The method according to claim 7, wherein said insertion instrument includes indicia on a handle portion that ensures the disc replacement implant is inserted in the proper orientation. 9. The method according to claim 8, wherein said indicia is at least one orientation marker visible to a clinician during insertion. 10. The method according to claim 9, wherein said orientation marker is at least one of a button and an alpha-numeric symbol. 11. The method according to claim 1, wherein said each of said first anchor plate and second anchor plate have a posterior side extending the entire, implant length and parallel to said Z-axis and an anterior side extending the entire implant length and parallel to said Z-axis. 12. The method of claim 1, wherein the implant has a height of between 8 mm and 14 mm. 13. The method of claim 1, wherein the articulation recess is offset posteriorly from a center point of the second interior surface and the intradiscal element is offset posteriorly from a center point of the fourth surface. 14. The method according to claim 13, wherein the disc replacement implant is positioned within the intervertebral disc space with the first anchor plate and second anchor plate, centered along a longitudinal midline of the disc space, such that the intradiscal element is situated posterior to the longitudinal midline. 15. The method according to claim 14, wherein said first anchor plate includes at least one anti-migration feature aligned along the longitudinal midline of said first anchor plate and said second anchor plate includes at least one anti-migration feature aligned along the longitudinal midline of said second anchor plate. 16. The method according to claim 15, comprising the additional step of: implanting a radiographic marker in at least one of an upper vertebra and a lower vertebra adjacent to said disc space and in line with said longitudinal midline of said disc space prior to inserting said disc replacement system into said disc space. 17. The method according to claim 15, comprising the additional steps of: positioning said at least one anti-migration feature of said first anchor plate and said at least one anti-migration feature of said second anchor plate in line with said radiographic marker prior to and during insertion of said disc replacement system; andusing at least one of a medical imaging device and visual inspection to check the alignment of said at least one anti-migration feature of said first anchor plate and said at least one anti-migration feature of said second anchor plate with said radiographic marker at least one of during and after insertion. 18. The method according to claim 14, wherein said first anchor plate includes at least one anti-migration feature aligned along the lateral midline of said first anchor plate and said second anchor plate includes at least one anti-migration feature aligned along, the lateral midline of said second anchor plate. 19. The method according to claim 18, comprising the additional steps of: positioning said at least one anti-migration feature of said first anchor plate and said at least one anti-migration feature of said second anchor plate in line with the spinous process of at least one of the adjacent vertebrae; andusing a medical imaging device to check the alignment of said at least one anti-migration feature with said spinous process at least one of during and after insertion. 20. The method of claim 14, wherein at least one of said first anchor plate and said second anchor plate has an angled cross-section to force the adjacent vertebral bodies into lordosis when the total disc replacement is introduced into a lumbar spine. 21. The method of claim 20, wherein the first and second anchor plate have a combined angle of between 1 and 15 degrees. 22. The method of claim 21, wherein the first and second anchor plate have a combined angle of between 5 degrees. 23. The method of claim 1, wherein the implant is positioned within the disc space such that the implant extends form the apophyseal ring at a first lateral aspect of the intervertabral disc space to the apophyseal ring at a second lateral aspect of the intervertebral disc space.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.