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 |
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국제특허분류(IPC7판) |
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출원번호 | US-0148465 (2008-04-18) |
등록번호 | US-10258382 (2019-04-16) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 0 인용 특허 : 454 |
A dynamic fixation medical implant having at least two bone anchors includes a longitudinal connecting member assembly having a core portion made from at least one pre-tensioned flexible member and a cooperating pre-compressed surrounding outer sleeve. The sleeve surrounds the core and is disposed b
A dynamic fixation medical implant having at least two bone anchors includes a longitudinal connecting member assembly having a core portion made from at least one pre-tensioned flexible member and a cooperating pre-compressed surrounding outer sleeve. The sleeve surrounds the core and is disposed between cooperating rigid end members that are attached to the bone anchors.
1. A medical implant assembly comprising a bone anchor and a pivotal bone screw, the bone anchor and pivotal bone screw cooperating with a longitudinal connecting member, wherein the longitudinal connecting member comprises: a) a substantially solid first connecting member having a length with a por
1. A medical implant assembly comprising a bone anchor and a pivotal bone screw, the bone anchor and pivotal bone screw cooperating with a longitudinal connecting member, wherein the longitudinal connecting member comprises: a) a substantially solid first connecting member having a length with a portion for attachment to the bone anchor, the first connecting member including a first end portion thereof connected to a first end portion of a tensionable cord;b) a second connecting member having a portion for attachment to the pivotal bone screw, the second connecting member including an internal opening along an entire length thereof, the cord positioned within and extending entirely through the internal opening, the second connecting member being in slidable relation with the cord before and after the cord is tensioned;c) an outer spacer located between the bone anchor and the pivotal bone screw and surrounding the cord and being in slidable relation therewith;d) a multi-part stiff end structure having a plurality of parts, each part being engaged with and compressively securable against the cord to hold the cord in tension, such that the plurality of parts no longer have a slidable relationship with respect to the cord, the multi-part stiff end structure comprising a non-threaded through-bore for slidably receiving a second end portion of the cord therethrough prior to tensioning of the cord along the second end portion with a tool; ande) an elastically compressible bumper having a through-bore, the cord extending through the bumper through-bore, the bumper located between the second connecting member and the multi-part stiff end structure, the bumper initially being in slidable engagement with the cord, and wherein the multi-part stiff end structure is only secured to the cord after the cord is tensioned along the second end portion of the cord. 2. The assembly of claim 1, wherein the second connecting member portion is substantially rigid. 3. The assembly of claim 1, wherein the outer spacer is in compression. 4. The assembly of claim 1, wherein the first connecting member has an integral plate. 5. The assembly of claim 1, wherein the multi-part stiff end structure includes two separate parts with surfaces engageable with each other, the engagement surfaces being non-tapered. 6. The assembly of claim 1, wherein the first end portion of the tensionable cord is connected to the first connecting member at a location substantially outside of a head of the bone anchor. 7. The assembly of claim 1, wherein the multi-part stiff end structure includes a closed circumferentially extending inner surface at least a portion of which compressively and fixedly engages the cord after the cord is tensioned. 8. The assembly of claim 1, wherein the multi-part stiff end structure has a pair of opposed crimping surfaces to compressively and fixedly engage the cord after the cord is tensioned. 9. The assembly of claim 1, wherein the multi-part stiff end structure includes a closed crimping ring. 10. The assembly of claim 1, wherein the multi-part stiff end structure is positioned and secured on the cord entirely outside of the bumper. 11. The assembly of claim 1, wherein the cord cooperates with one of the bone anchor or the pivotable bone screw in a fixed relation to provide continuous tension in the cord, and wherein the one of the bone anchor or the pivotable bone screw is in slidable relation with the cord after the cord is tensioned and the multi-part stiff end structure is compressively secured thereto. 12. The assembly of claim 1, wherein the cord is re-tensionable after the cord has been tensioned. 13. The assembly of claim 1, further comprising: a bone anchor receiver coupled to the first connecting member, the cord positioned entirely outside of the bone anchor receiver. 14. The assembly of claim 1, wherein the cord is tensioned before the longitudinal connecting member is attached to the bone anchor and the pivotal bone screw. 15. The assembly of claim 1, wherein the cord is tensioned after the first and second connecting members are attached to the bone anchor and the pivotal bone screw, respectively. 16. The assembly of claim 1, wherein the second connecting member has an integral plate. 17. The assembly of claim 1, wherein the multi-part stiff end structure compressive securement against the cord is devoid of cord internal penetration. 18. The assembly of claim 1, wherein the cord is tensionable from only the end on which the multi-part stiff end structure is secured. 19. The assembly of claim 1, wherein the spacer and the bumper are spaced apart from the bone anchor and the pivotal bone screw when the cord is tensioned. 20. The assembly of claim 1, wherein the spacer is elastically compressible. 21. The assembly of claim 1, wherein the first connecting member portion for attachment to the pivotal bone screw has a cylindrical outer surface. 22. A medical implant assembly comprising first and second bone anchors, the first and second bone anchors cooperating with a longitudinal connecting member, wherein the longitudinal connecting member comprises: a) a first connecting member portion attachable to the first bone anchor, the first connecting member portion having a closed internal opening along an entire length thereof, the connecting member portion positionable within and securable to the first bone anchor;b) a tensionable cord positioned within and extending entirely through the internal opening and tensioned to a stable length, the first bone anchor being in slidable relation with respect to the cord before and after tensioning; andc) a multi-part stiff end structure having a plurality of parts each engageable with and compressively securable against the cord so as the to hold the cord in tension, the multi-part stiff end structure comprising a non-threaded interior surface extending entirely through the stiff end structure for slidably receiving the cord therethrough prior to tensioning. 23. The assembly of claim 22, wherein the first bone anchor is a first polyaxial bone screw. 24. The assembly of claim 22, wherein the longitudinal connecting member further comprises an outer spacer being located between the first bone anchor and the second bone anchor and surrounding the cord in slidable relation therewith. 25. The assembly of claim 22, wherein the longitudinal connecting member further comprises an elastically compressible bumper having a through-bore, the cord extending through the bumper through-bore, the bumper located between the second bone anchor and the multi-part stiff end structure, and the bumper being in slidable engagement with the cord. 26. The assembly of claim 22, wherein the second bone anchor is a second polyaxial bone screw. 27. The assembly of claim 26, wherein the second polyaxial bone screw further comprises a compression insert, such that the compression insert cooperates in locking the second polyaxial bone screw. 28. The assembly of claim 22, wherein the multi-part stiff end structure is at least partially releaseable with respect to the cord to allow the medical implant assembly to be further tensioned. 29. The assembly of claim 22, wherein the multi-part stiff end structure is secured to the cord only after the cord has been tensioned. 30. The assembly of claim 22, wherein the first connecting member is attached to a first bone anchor receiver. 31. The assembly of claim 30, wherein the first connecting member has an outer cylindrical surface. 32. The assembly of claim 22, wherein the cord is tensioned to a stable length prior to the longitudinal connecting member being attached to the first and second bone anchors. 33. The assembly of claim 22, wherein the cord is connected to the second bone anchor. 34. A medical implant assembly comprising first and second bone anchors cooperating with a longitudinal connecting member, wherein the longitudinal connecting member comprises: a) a first connecting member having an elongated stiff portion for being fixedly attachable to the first bone anchor, the first connecting member including a first end portion connected to a cord portion tensionable to a length;b) a second connecting member having a portion for being fixedly attachable to the second bone anchor, the second connecting member portion including an outer cylindrical shape and an internal opening along an entire length thereof, the cord portion slidably positioned within and extending entirely through the internal opening, the second connecting member being in slidable relation with the cord portion before and after tensioning;c) an outer spacer being located between the first bone anchor and the second bone anchor and surrounding the cord portion and being in slidable relation therewith;d) a multi-part stiff end structure subassembly having a plurality of parts each engageable with and compressively securable to an outer end of the cord portion to hold the cord in tension, the multi-part stiff end structure subassembly comprising a non-threaded through-bore for slidably receiving the outer end of the cord portion therethrough; ande) an elastically compressible bumper having a through-bore, the cord portion extending through the bumper through-bore, the bumper located between the second bone anchor and the multi-part stiff end structure subassembly, and the bumper being in slidable engagement with the cord portion and cooperating to hold the cord portion in tension, and wherein the multi-part stiff end structure subassembly is compressively secured to the cord portion after tensioning. 35. The assembly of claim 34, wherein the second bone anchor is in slidable relation with the cord portion after being fixedly attached to the second connecting member. 36. The assembly of claim 34, wherein the second bone anchor is a polyaxial screw. 37. The assembly of claim 34, wherein the multi-part stiff end structure subassembly is at least partially releaseable to allow the cord portion to be further tensioned. 38. The assembly of claim 34, wherein the multi-part stiff end structure subassembly is securable to the outer end of the cord portion after the cord portion has been tensioned with a tool along the outer end thereof. 39. The assembly of claim 34, further comprising: a first and second bone anchor receiver coupled to the first connecting member and the second connecting member, respectfully. 40. A medical implant assembly comprising first and second bone anchors cooperating with a longitudinal connecting member, wherein the longitudinal connecting member comprises: a) a first substantially solid connecting member having a portion for attachment to the first bone anchor, the first solid connecting member including a first end thereof connected to a portion of a cord to be tensioned along the longitudinal connecting member;b) a second connecting member having a portion for attachment to the second bone anchor, the second connecting member including an internal opening along an entire length thereof, the cord positioned within and extending entirely through the internal opening;c) an outer spacer being located between the first bone anchor and the second bone anchor and surrounding the cord and being in slidable relation therewith;d) a multi-part subassembly compressively securable to another portion of the cord opposite the portion connected to the first end to hold the cord in tension, the multi-part subassembly comprising a non-threaded through-bore for receiving the cord other portion therethrough; ande) an elastically compressed bumper having a through-bore, the cord portion extending through the bumper through-bore, the bumper located between the second bone anchor and the multi-part subassembly, and the bumper being in slidable engagement with the cord and cooperating to hold the cord in tension, and wherein the multi-part subassembly is secured to the cord portion after tensioning. 41. The assembly of claim 40, wherein at least one of the first bone anchor or the second bone anchor is a polyaxial screw. 42. The assembly of claim 40, wherein the multi-part subassembly is at least partially releaseable with respect to the cord so as to be able to re-tension the cord. 43. The assembly of claim 40, wherein the multi-part subassembly is securable to the cord portion after the longitudinal connecting member is attached to the first and second bone anchors and the cord is tensioned. 44. The assembly of claim 40, further comprising: a first bone anchor receiver coupled to the first connecting member, wherein the entire cord is positioned entirely outside of the first bone anchor receiver. 45. A medical implant assembly comprising a plurality of bone anchors connected to a spine of a patient, the plurality of bone anchors cooperating with a longitudinal connecting member, wherein the longitudinal connecting member comprises: a) a substantially solid first connecting member having a portion for attachment to a first bone anchor of the plurality of bone anchors, the first connecting member including a first end thereof connected to a tensionable cord elongated by tensioning to a length;b) a second connecting member including an internal opening along an entire length thereof and having a portion for attachment to a second bone anchor of the plurality of bone anchors, the second connecting member being in slidable relation with the cord before and after tensioning, the cord positioned within and extending entirely through the internal opening;c) an outer spacer being located between the first and second bone anchors and surrounding the cord and being in slidable relation therewith;d) a multi-part stiff ring subassembly compressively securable to the cord to hold the cord in tension, the multi-part stiff ring subassembly comprising a non-threaded closed through-bore for directly engaging and slidably receiving the cord therethrough; ande) an elastically compressed bumper having a through-bore, the cord extending through the bumper through-bore, the bumper located between the second bone anchor and the multi-part stiff ring subassembly, and the bumper being at least initially in slidable engagement with the cord, the bumper being in compressive engagement with the multi-part stiff ring subassembly. 46. The assembly of claim 45, wherein the multi-part stiff ring subassembly is releaseable to allow the cord to be further tensioned. 47. The assembly of claim 45, further comprising: a first bone anchor receiver coupled to the substantially solid first connecting member, the cord positioned entirely outside of the first bone anchor receiver. 48. A medical implant assembly comprising a bone anchor and a pivotal bone screw, the bone anchor and pivotal bone screw cooperating with a longitudinal connecting member, wherein the longitudinal connecting member comprises: a) a substantially solid first connecting member having a portion for attachment to the bone anchor, the first connecting member including a first end thereof connected to a tensionable cord;b) a second connecting member having a portion for attachment to the pivotal bone screw, the second connecting member including an internal opening along an entire length thereof, the cord positioned within and extending entirely through the internal opening;c) an outer spacer located between the bone anchor and the pivotal bone screw and surrounding the cord and being in slidable relation therewith;d) a multi-part stiff end structure having a plurality of parts securable to the cord to hold the cord in tension, such that the plurality of parts no longer have a slidable relationship with respect to the cord, wherein the multi-part stiff end structure has a part with a cylindrically shaped through-bore with the cord extending therethrough and engaged therewith, the multi-part stiff end structure having a non-rotating relationship relative to the cord and with respect to securing the multi-part stiff end structure to the cord so as to hold the cord in tension by compressing the cord against the through-bore; ande) an elastically compressible bumper having a through-bore, the cord extending through the bumper through-bore, the bumper located between the pivotal bone screw and the multi-part stiff end structure, the bumper initially being in slidable engagement with the cord, the bumper being positioned substantially outside of the second connecting member, and wherein the multi-part stiff end structure is secured to the cord after tensioning. 49. A medical implant assembly comprising first and second bone anchors, the first and second bone anchors cooperating with a longitudinal connecting member, wherein the longitudinal connecting member comprises: a) a first connecting member portion attachable to the first bone anchor, the first connecting member portion having an internal opening along an entire length thereof, the connecting member portion at least partially positionable within and fixedly securable to the first bone anchor;b) a tensionable cord positioned within and extending entirely through the internal opening and tensioned to a stable length, the first connecting member portion being in slidable relation with respect to the cord before and after cord tensioning; andc) a multi-part stiff end structure fixedly securable to the cord, wherein the multi-part stiff end structure has a smooth through-bore with the cord extending therethrough, the multi-part stiff end structure having a part with a non-rotating relationship relative to the cord and with respect to securing the multi-part stiff end structure to the cord so as to hold the cord in tension by compression of the cord against the through-bore after the cord is tensioned. 50. A medical implant assembly comprising first and second bone anchors cooperating with a longitudinal connecting member, wherein the longitudinal connecting member comprises: a) a first connecting member having a portion for attachment to the first bone anchor, the first connecting member including a first end thereof connected to a first end portion of a cord tensioned to a length;b) a second connecting member having a portion for attachment to the second bone anchor, the second connecting member including an internal opening along an entire length thereof, the cord slidably positioned within and extending entirely through the internal opening, the second connecting member being in slidable relation with the cord before and after tensioning;c) an outer spacer being located between the first bone anchor and the second bone anchor and surrounding the cord and being in slidable relation therewith;d) a multi-part stiff end structure subassembly securable to a second end portion of the cord after tensioning, wherein the multi-part stiff end structure subassembly includes a through-bore comprising a circumferentially extending inner surface with the second end portion of the cord extending therethrough, the multi-part stiff end structure subassembly being slidable along the cord while being tensioned with a non-rotating advancement on the cord toward the second connecting member prior to securing the multi-part stiff end structure subassembly to the cord so as to hold the second end portion of the cord in tension after tensioning; ande) an elastically compressible bumper having a through-bore, the cord portion extending through the bumper through-bore, the bumper located between the second bone anchor and the multi-part stiff end structure subassembly, and the bumper being in slidable engagement with the cord and cooperating to hold the cord in tension, and wherein the cord is tensioned prior to the longitudinal connecting member being attached to the first and second bone anchors. 51. A medical implant assembly comprising first and second bone anchors cooperating with a longitudinal connecting member, wherein the longitudinal connecting member comprises: a) a substantially solid first connecting member having a portion for attachment to the first bone anchor, the first connecting member including a first end thereof connected to a cord portion to be tensioned within the assembly;b) a second connecting member having a portion for attachment to the second bone anchor, the second connecting member including an internal opening along an entire length thereof, the cord portion positioned within and extending entirely through the internal opening;c) an outer spacer being located between the first bone anchor and the second bone anchor and surrounding the cord portion and being in slidable relation therewith;d) a multi-part subassembly securable to the cord portion after tensioning, wherein the multi-part subassembly has a non-threaded through-bore with the cord portion extending therethrough, the multi-part subassembly through-bore being slidable along the cord portion when tensioned and prior to being secured to the cord portion so as to hold the cord portion in tension by compression of the cord portion against the through-bore; ande) an elastically compressed bumper having a through-bore, the cord portion extending through the bumper through-bore, the bumper located between the second bone anchor and the multi-part subassembly, and the bumper being in slidable engagement with the cord portion and cooperating to provide tension in the cord after the multi-part subassembly is secured thereto. 52. A medical implant assembly comprising at least a pair of bone anchors connected to a spine of a patient, the of bone anchors cooperating with a longitudinal connecting member, wherein the longitudinal connecting member comprises: a) a substantially solid first connecting member having a portion for attachment to a first bone anchor of the pair of bone anchors, the first connecting member including a first end thereof connected to a tensionable cord elongated by tensioning to a length with a tool;b) a second connecting member including an internal opening along an entire length thereof and having a portion for attachment to a second bone anchor of the pair of bone anchors, after tensioning of the cord, the second connecting member being in slidable relation with the cord, the cord positioned within and extending entirely through the internal opening;c) an outer spacer being located between the pair of bone anchors and surrounding the cord and being in slidable relation therewith;d) a multi-part stiff ring subassembly securable to the cord after tensioning, wherein the multi-part stiff ring subassembly has a non-threaded through-bore with the cord slidably extending therethrough prior to securement, the multi-part stiff ring subassembly having a non-rotating relationship relative to the cord and with respect to securing the multi-part stiff ring subassembly to the cord, the multi-part stiff ring subassembly configured to compress the cord against the through-bore so as to hold the cord in tension; ande) an elastically compressed bumper having a through-bore, the cord extending through the bumper through-bore, the bumper located between the second connecting member and the multi-part stiff ring subassembly, and the bumper being at least initially in slidable engagement with the cord, the bumper being in compressive engagement with the multi-part stiff ring subassembly and the second connecting member after the cord is tensioned.
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