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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0454132 (2009-05-13) |
등록번호 | US-8845649 (2014-09-30) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 3 인용 특허 : 467 |
A tool for implantation of a rod into a bone screw implanted in a human spine includes a guide member having a laterally opening channel disposed along an entire length thereof for side loading and receiving an implant fastener. A rod pushing member and a handle with a laterally opening channel are
A tool for implantation of a rod into a bone screw implanted in a human spine includes a guide member having a laterally opening channel disposed along an entire length thereof for side loading and receiving an implant fastener. A rod pushing member and a handle with a laterally opening channel are coaxial with the guide member, with the rod pushing member being rotatingly mateable to the guide member and the handle having a spring attachment mechanism for attaching the handle to the guide member. The guide member includes spring tabs for attachment to a bone screw, the tabs biased away from the bone screw. The rod pushing member includes a sleeve that extends substantially about the guide member, pressing the spring tabs toward the bone screw and into apertures on the bone screw arms. The rod pushing member sleeve also operatively functions as a rod pusher that abuts a rod as the sleeve is translated along the guide member and toward the bone screw. The handle lateral opening receives and supports a manipulation tool for inserting and installing an implant fastener for attaching the rod to the bone screw.
1. An elongate guide tool comprising: a) a handle structure at a first end of a guide member;b) an opposed implant engaging structure at a second end of the guide member; andc) a channel defining surface extending from the first end to the second end and having a lateral opening that extends an enti
1. An elongate guide tool comprising: a) a handle structure at a first end of a guide member;b) an opposed implant engaging structure at a second end of the guide member; andc) a channel defining surface extending from the first end to the second end and having a lateral opening that extends an entire length of the guide member, the lateral opening being sized and shaped for side loading and receiving of an implant fastener into a loading location positioned along the length of the channel. 2. The guide tool of claim 1 wherein the loading location is at the handle structure. 3. The guide tool of claim 1 further comprising a rod pushing member attachable to the guide tool. 4. The guide tool of claim 1 having an external guide and advancement structure. 5. The guide tool of claim 4 wherein the guide and advancement structure is a thread. 6. The guide tool of claim 4 wherein the guide and advancement structure is a first guide and advancement structure, and further comprising a rod pushing member having a second guide and advancement structure mateable to the first guide and advancement structure. 7. The guide tool of claim 1 wherein the implant engaging structure includes a pair of radially opposed and flexible implant engaging members, each of the implant engaging members having a radially inwardly extending protrusion. 8. The guide tool of claim 1 wherein the implant engaging structure has a pair of opposed spring tabs biasing radially outwardly from the guide tool. 9. The guide tool of claim 1 wherein the handle structure is detachable. 10. The guide tool of claim 1 wherein the lateral opening has a varying width. 11. A spinal rod implantation tool assembly comprising: a) an elongate guide member having an end configured for releasable attachment to a spinal implant and a first channel defining surface having a first lateral opening extending along an entire length of the guide member;b) an elongate installation tool having I) a translation nut configured for rotatable attachment to the guide member, andii) an attached sleeve with a rod pushing end translatable along the guide member and operably urging the spinal implant and a rod together, the translation nut being coaxial and freely rotatable with respect to the sleeve; andc) a handle configured for releasable attachment to the guide member, the handle having I) a second channel defining surface configured for coaxial alignment with the first channel defining surface, andii) a second lateral opening configured for coaxial alignment with the first lateral opening, the second lateral opening configured for receiving a manipulation tool. 12. The assembly of claim 11 further comprising: a) a manipulation tool having a holder and a stem, the stem being laterally insertable into the handle second channel so as to be in coaxial relationship with both the first and second channels and having an end configured for rotatable engagement with a closure member of a spinal implant. 13. A guide member for use with a spinal implant bone screw with first and second side apertures and an associated rod, the guide member comprising: a) an elongate body having an inner surface defining an elongate channel, the body further defining a first elongate lateral opening communicating with the channel and extending an entire length of the elongate body; andb) a bone screw attachment end having I) first and second legs defining in part the first lateral opening; andii) first and second opposed spring tabs, the first spring tab secured to the first leg and including a first protrusion configured for projecting into the first aperture of the bone screw, and the second spring tab secured to the second leg and including a second protrusion configured for projecting into the second aperture of the bone screw when the spring tab protrusions are biased toward respective bone screw apertures. 14. The guide member of claim 13 the bone screw attachment end further comprising an abutment surface disposed perpendicular to an axis of rotation of the guide member and configured for abutment with a top of the bone screw; the first and second legs each having an opening sized and shaped to allow passage of the protrusions into respective apertures in the bone screw; and including a sleeve that is slidingly mounted on the guide member and having a lower end that extends over the spring tabs so as to bias the protrusions into respective bone screw apertures as the sleeve slides axially downward relative to the guide member. 15. In a guide member having an elongate body with attachment structure at a lower end thereof and adapted to be secured to a bone screw implant; the improvement comprising: a) a first laterally opening channel defining surface extending into an interior of the body and extending from a top end of the body to a bottom end thereof; andb) a handle configured for releasable attachment to the guide member, the handle having a second laterally opening channel defining surface configured for coaxial alignment with the first laterally opening channel defining surface, the second laterally opening channel defining surface configured for receiving a manipulation tool and bone screw implant components therein. 16. In the combination of a bone screw having a head and a guide member having a bone screw attachment structure at a lower end thereof that is operably mateable with the bone screw head, the improvement comprising: a) the bone screw head having first and second opposed apertures; andb) the guide member lower end having first and second opposed spring tabs, each of the spring tabs having a top portion and a bottom portion and being biased radially outwardly away from an exterior of the guide member and away from the first and second opposed apertures; whereinc) the top portion of each spring tab is attached to the guide member; andd) the bottom portion of each spring tab has a radially inwardly extending projection sized, shaped and positioned for insertion into one of the first and second opposed apertures. 17. The combination according to claim 16 wherein: a) the projections extend radially inwardly into the apertures upon application of a downward force on the spring tab. 18. A spinal rod implantation tool assembly comprising: a) an elongate guide member having an end configured for releaseable attachment to a spinal implant and a first channel defining surface having a first lateral opening along a substantial length of the guide member;b) an elongate installation tool having a translation member and an attached sleeve, the translation member coaxial and being freely rotatable with respect to the sleeve, the translation member configured for rotatable attachment to the guide member, the sleeve having a rod pushing end, the rod pushing end translatable along the guide member and configured for pressing the guide member end into engagement with the spinal implant and for contact with and translation of a rod toward the spinal implant; andc) a handle configured for releasable attachment to the guide member, the handle having a second channel defining surface configured for coaxial alignment with the first channel defining surface, and a second lateral opening configured for coaxial alignment with the first lateral opening, the second lateral opening configured for receiving a manipulation tool. 19. A spinal rod implantation tool assembly comprising: a) a guide member including an elongate body with I) an axial bore defining surface with an elongate lateral opening communicating with the bore defining surface;ii) a first surface with a first guide and advancement structure thereon; andiii) a bone screw attachment end adapted for releasable attachment to a bone screw and having first and second legs defining in part the elongate lateral opening and also defining a second lateral opening opposed to the elongate lateral opening, each of the legs including a leg aperture in a lower portion thereof; andiv) first and second opposed spring tabs having a protrusion configured for projecting through one of the leg apertures and into an aperture of a bone screw attached to the bone screw attachment end, the first spring tab being attached to the first leg so as to bias the associated protrusion away from an associated bone screw aperture, and the second spring tab being attached to the second leg so as to bias the associated protrusion away from an associated bone screw aperture; andb) an elongate installation tool assembly including a sleeve with I) a second surface with a second guide and advancement structure thereon and mateable with the first guide and advancement structure; andii) a rod pushing end configured for pressing radially inwardly against the spring tabs and thereby projecting the protrusions through the leg apertures and into the bone screw apertures, the rod pressing end also configured for contact with and translation of a rod toward the bone screw. 20. An elongate guide tool having a handle structure at an end thereof and opposed implant engaging structure at an opposite end thereof, the guide tool having an axial channel defining surface with a lateral opening that extends a substantial length of the guide tool and includes a width sufficient to receive a rod therein, the channel being sized and shaped for side loading and receiving an implant fastener into a loading location positioned along the length of the channel. 21. A guide member for use with a spinal implant bone screw with a side aperture and an associated rod, the guide member comprising: a) an elongate body having an inner surface defining an elongate channel, the body further defining an elongate lateral opening communicating with the channel; andb) a bone screw attachment end having I) first and second legs defining in part the lateral opening; andii) a spring tab cooperating with the first leg; a protrusion aligned and configured for projecting into the aperture of the bone screw when the bone screw and guide member are joined; the spring tab being outwardly biased to urge the protrusion away from the body. 22. The guide member of claim 21, the bone screw attachment end further comprising an abutment surface disposed perpendicular to an axis of rotation of the guide member and configured for abutment with a top of the bone screw; the first and second legs each having an opening sized and shaped to allow passage of the protrusions into the bone screw aperture; and including a sleeve that is slidingly mounted on the guide member and having a lower end that extends over the spring tab so as to bias the protrusion into the bone screw aperture as the sleeve slides axially downward relative to the guide member. 23. A guide member for use with a spinal implant bone screw with a side aperture and an associated rod, the guide member comprising: a) an elongate body having an inner surface defining an elongate channel, the body further defining a first elongate lateral opening communicating with the channel and extending an entire length of the elongate body; andb) a bone screw attachment end having I) first and second legs defining in part the first lateral opening; andii) a spring-like flexible portion cooperating with the first leg and including a protrusion configured for projecting into the aperture of the bone screw, the spring-like flexible portion being outwardly biased to urge the protrusion away from the body. 24. The guide member of claim 23 the bone screw attachment end further comprising an abutment surface disposed perpendicular to an axis of rotation of the guide member and configured for abutment with a top of the bone screw; the first and second legs each having an opening sized and shaped to allow passage of the protrusions into the bone screw aperture; and including a sleeve that is slidingly mounted on the guide member and having a lower end that extends over the spring-like flexible portion so as to bias the protrusion into the bone screw aperture as the sleeve slides axially downward relative to the guide member. 25. A guide tool member for use with a spinal implant bone anchor with a side aperture and an associated rod, the guide tool member comprising: a) an elongate body having a longitudinal axis and an inner surface defining an elongate central bore about the axis, the body further defining an elongate lateral channel extending a length of the elongate body and communicating with the central bore, the channel aligned with a rod receiving channel in the bone anchor; andb) a bone anchor attachment end having I) first and second opposed legs defining in part the lateral channel; andii) one of the first and second legs having a spring-like flexible portion including a protrusion configured for projecting into the aperture of the bone anchor and engaging the bone anchor. 26. A guide member for use with a spinal implant bone screw with first and second side apertures and an associated rod, the guide member comprising: a) an elongate body having an inner surface defining an elongate central bore, the body further defining an elongate lateral channel opening extending a length of the elongate body and communicating with the central bore; andb) a bone screw attachment at a lower end thereof, the bone screw attachment having I) first and second legs defining in part the lower end lateral channel opening; andii) first and second opposed resilient extensions, the first extension cooperating with the first leg and including a first protrusion configured for projecting into the first aperture of the bone screw, and the second extension cooperating with the second leg and including a second protrusion configured for projecting into the second aperture of the bone screw when the protrusions are initially biased away from the first and second apertures and are pushed toward respective bone screw apertures by a structural member that translates along the elongate body. 27. The guide member of claim 26, wherein as the structural member translates along the elongate body, the structural member reduces a rod received in the elongate central opening downwardly toward an engaged bone screw. 28. A spinal rod implantation tool assembly comprising: a) an elongate guide member having a lower resilient end configured for releasable attachment to a spinal implant the implant having a receiver with a rod-receiving channel defining surface; the guide member having a guide member channel defining surface with a lateral opening along a substantial length of the guide member; the receiver channel defining surface and the guide member channel defining surface being alignable;b) an elongate installation tool having a translation member and an attached sleeve, the translation member coaxial and being freely rotatable with respect to the sleeve, the translation member configured for rotatable attachment to the guide member, the sleeve having a rod pushing end, the rod pushing end translatable along the guide member and configured for first pressing the guide member lower resilient end into engagement with the spinal implant and then for pushing and translating the rod toward and into the spinal implant receiver channel. 29. A tool assembly for inserting a spinal rod in a patient, the tool assembly comprising: a) a first elongate tool member having a central bore and opposed gripping lower end members that are biased outwardly with respect to each other and to an outer surface of the first elongate tool member and are adapted to grip a bone anchor when moved toward each other; andb) a second tool member configured for non-rotational translation along the first tool member and the lower end portions; whereinc) translation downward of the second tool member attaches the gripping lower end portions to a bone anchor and translation upward releases the gripping lower end portions from a bone anchor. 30. An elongate guide tool comprising: a) a handle structure at a first end of a guide member;b) an opposed implant engaging structure at a second end of the guide member; andc) a channel defining surface extending from the first end to the second end and having a lateral opening wide enough to receive the width of a rod therein and that extends upward from a bottom of the guide member, the lateral opening being sized and shaped for side loading and receiving of an implant fastener into a loading location positioned along the length of the channel. 31. A guide tool assembly for use with a spinal implant bone screw, the screw having a head with first and second side apertures, and an associated rod, the guide tool assembly comprising: a) an elongate body having an inner axial bore defined by an internal surface and an elongate laterally opening channel defining surface extending an entire length thereof and communicating with the axial bore defining surface; and the body having a bone screw attachment with I) first and second downwardly extending legs defining in part the laterally opening channel; andii) the legs including inwardly projecting structures that are biased outwardly away from the body and the bone screw first and second apertures; and whereinb) an outer sleeve is operative to cause the projecting structures to be biased into the apertures and the rod to be translated downwardly toward the screw head. 32. An elongate guide tool comprising: a) a handle structure near a first end of the guide tool;b) an opposed implant engaging structure near a second end of the guide tool; andc) a channel defining surface extending between the first end and the second end and having a lateral opening with a lower portion wide enough to receive the width of a rod therein and extends the entire length of the guide tool, the lateral opening being sized and shaped for side loading and receiving an implant fastener into a loading location positioned along a length of the channel defining surface. 33. A guide member for use with a spinal implant bone screw with first and second side apertures and an associated rod, the guide member comprising: a) an elongate body having an inner surface defining an elongate channel, the body further defining a first elongate lateral opening communicating with the channel; andb) a bone screw attachment end having I) first and second legs defining in part the first lateral opening; andii) first and second opposed spring tabs, the first spring tab secured to the first leg and including a first protrusion configured for projecting into the first aperture of the bone screw, and the second spring tab secured to the second leg and including a second protrusion configured for projecting into the second aperture of the bone screw when the spring tab protrusions are biased toward respective bone screw apertures; andc) an outer surface having a first guide and advancement structure thereon adapted to rotatably and matingly receive a second guide and advancement structure disposed on a nut attachment of a rod pusher wherein rotation of the nut results in axial translation of the rod pusher with respect to the guide member. 34. In the combination of a bone screw having a head and a guide member having attachment structure at a lower end thereof that is operably mateable with the bone screw head; the improvement comprising: a) the bone screw head having first and second opposed apertures; andb) the guide member lower end having first and second opposed spring tabs, each of the spring tabs having a top portion and a bottom portion and being biased radially outwardly; whereinc) the top portion of each spring tab is attached to the guide member; andd) the bottom portion of each spring tab has a radially inwardly extending projection sized, shaped and positioned for insertion into one of the first and second opposed apertures; ande) an elongate installation tool having a translation nut and an attached sleeve, the translation nut coaxial and being freely rotatable with respect to the sleeve, the nut configured for rotatable attachment to the guide member, the sleeve having a rod pushing end, the rod pushing end translatable along the guide member and onto the spring tab top portions, pressing the spring tab projections into the bone screw apertures. 35. A guide member for use with a spinal implant bone screw with a side aperture and an associated rod, the guide member comprising: a) an elongate body having an inner surface defining an elongate channel, the body further defining a first elongate lateral opening communicating with the channel; andb) a bone screw attachment end having I) first and second legs defining in part the first lateral opening; andii) a spring protrusion cooperating with one of the first and second legs, aligned and configured for projecting into the aperture of the bone screw when the bone screw and guide member are joined; the spring being outwardly biased at the protrusion to urge the protrusion away from the body; andc) an outer surface having a first guide and advancement structure thereon adapted to rotatably and matingly receive a second guide and advancement structure disposed on a nut attachment of a rod pusher wherein rotation of the nut results in axial translation of the rod pusher with respect to the guide member. 36. A guide member for use with a spinal implant bone screw with a side aperture and an associated rod, the guide member comprising: a) an elongate body having an inner surface defining an elongate channel, the body further defining a first elongate lateral opening communicating with the channel; andb) a bone screw attachment end having I) first and second legs defining in part the first lateral opening; andii) a spring protrusion cooperating with one of the first and second legs, aligned and configured for projecting into the aperture of the bone screw when the bone screw and guide member are joined; the spring being outwardly biased at the protrusion to urge the protrusion away from the body; andc) an upper portion defining a guide member opening for receiving a spring-loaded pin of a handle. 37. A guide member for use with a spinal implant bone screw with a side aperture and an associated rod, the guide member comprising: a) an elongate body having an inner surface defining an elongate channel, the body further defining a first elongate lateral opening communicating with the channel; andb) a bone screw attachment end having I) first and second legs defining in part the first lateral opening; andii) a spring-like flexible portion cooperating with one of the first and second legs and including a protrusion configured for projecting into the aperture of the bone screw; andc) an outer surface having a first guide and advancement structure thereon adapted to rotatably and matingly receive a second guide and advancement structure disposed on a nut attachment of a rod pusher wherein rotation of the nut results in axial translation of the rod pusher with respect to the guide member. 38. A guide member for use with a spinal implant bone screw with a side aperture and an associated rod, the guide member comprising: a) an elongate body having an inner surface defining an elongate channel, the body further defining a first elongate lateral opening communicating with the channel; andb) a bone screw attachment end having I) first and second legs defining in part the first lateral opening; andii) a spring-like flexible portion cooperating with one of the first and second legs and including a protrusion configured for projecting into the aperture of the bone screw; andc) an upper portion defining a guide member opening for receiving a spring-loaded pin of a handle. 39. A tool assembly adapted for use in implanting a spinal implant including a bone anchor and a rod in a patient comprising: a) an elongate guide member having an axis; the guide member having an upper end and a lower end for operably engaging the bone anchor during use; the guide member also having a channel sized and shaped to receive the rod;b) the guide member having a first spring tab at the lower end thereof that includes a projection that extends radially inward; the first spring tab projection being sized and shaped to be received in a slot in the bone anchor when aligned therewith and then biased radially inward;c) a second spring tab diametrically opposed to the first spring tab;d) a sleeve including a lower portion and an upper portion that rotates relative to the lower positions, and the sleeve upper portion is joined with the guide member by a helically wound guide rod advancement structure, such that rotation of the sleeve upper portion axially moves the sleeve relative to the guide member; the sleeve located on an exterior of the guide member and being axially moveable therealong; the sleeve having a bottom that openably engages the rod when the sleeve is urged downwardly and the rod is located in the channel; the sleeve also engaging the spring tabs so as to bias the spring tabs radially inwardly when the sleeve is advanced downward so as to urge the spring tab projections into the bone anchor slot when aligned therewith, such that the sleeve both urges the projection into the slot to secure the assembly to the bone anchor while urging the rod, when the rod is in the channel into the bone anchor. 40. A guide member for use with a spinal implant bone screw with first and second side apertures and an associated rod, the guide member comprising: a) an elongate body having an inner surface defining an elongate channel, the body further defining a first elongate lateral opening communicating with the channel; andb) a bone screw attachment end having I) first and second legs defining in part the first lateral opening; andii) first and second opposed spring tabs, the first spring tab secured to the first leg and including a first protrusion configured for projecting into the first aperture of the bone screw, and the second spring tab secured to the second leg and including a second protrusion configured for projecting into the second aperture of the bone screw when the spring tab protrusions are biased toward respective bone screw apertures; andc) an upper portion defining an aperture for receiving a spring-loaded pin of a handle. 41. A tool assembly adapted for use in implanting a spinal implant including a bone anchor and a rod in a patient comprising: a) an elongate guide member having an axis; the guide member having an upper end and a lower end for operably engaging the bone anchor during use; the guide member also having a channel extending from the upper end to the lower end and sized and shaped to receive the rod;b) the guide member lower end having flexible members that extend outwardly away from an exterior of the guide member; each flexible member having an inward projecting structure, each of the projecting structures being sized and shaped to be received in a respective slot in the bone anchor when aligned therewith and then biased inwardly; andc) a sleeve located on the exterior of the guide member and being axially moveable therealong; the sleeve having a bottom that engages the rod when the sleeve is urged downwardly and the rod is located in the channel; the sleeve also engaging the flexible members so as to bias the members inwardly when the sleeve is advanced downward so as to urge the projecting structure into the bone anchor slot when aligned therewith, such that the sleeve both urges the projection into the slot to secure the assembly to the bone anchor while urging the rod, when the rod is in the channel into the bone anchor. 42. A spinal rod implantation tool assembly comprising: a) an elongate guide member having a body with a lower end configured for releaseable attachment to a spinal implant by resilient opposed implant engaging members and a channel defining surface having an opening along a lower portion of the guide member, the guide member channel defining surface aligning with a rod receiving channel defining surface in a receiver of the spinal implant, the resilient members sloping outwardly away from the guide member body;b) an elongate installation tool having a translation member and an attached sleeve, the translation member coaxial and being freely rotatable with respect to the sleeve, the translation member configured for rotatable attachment to the guide member, the sleeve having a rod pushing end, the rod pushing end translatable along the guide member and configured for pressing the guide member lower end resilient members inwardly into engagement with the spinal implant and for contact with and translation of a rod toward the spinal implant receiver channel.
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