IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0938380
(2004-09-11)
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등록번호 |
US-8123788
(2012-02-28)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
15 인용 특허 :
184 |
초록
▼
The present invention is directed to (1) a plating system having multiple and single locking mechanisms for general skeletal use other than in the anterior cervical spine; (2) an orthopedic plating system that permits a pair of bone screws to be inserted into a bone in a crossed over orientation and
The present invention is directed to (1) a plating system having multiple and single locking mechanisms for general skeletal use other than in the anterior cervical spine; (2) an orthopedic plating system that permits a pair of bone screws to be inserted into a bone in a crossed over orientation and locked to the plate; (3) a segmentable plating system which can be made to a selected length by the surgeon; and (4) a combination screw-lock-plating system for allowing and/or causing intersegmental compression of bone portions.
대표청구항
▼
1. A skeletal plating system for aligning and maintaining bone portions of the same bone or of different bones in a selected spatial relationship for healing or fusion of the bone portions, comprising: a plate having a longitudinal axis and a length sufficient to span at least two of the bone portio
1. A skeletal plating system for aligning and maintaining bone portions of the same bone or of different bones in a selected spatial relationship for healing or fusion of the bone portions, comprising: a plate having a longitudinal axis and a length sufficient to span at least two of the bone portions, said plate having a first end and an opposite second end, and said length being therebetween, the longitudinal axis passing through said first and second ends along said length of said plate, said plate having a width, said length being greater than and perpendicular to said width, said plate having a lower surface for placement against the at least two of the bone portions and an upper surface opposite said lower surface, and a thickness between said upper and lower surfaces, said width being greater than said thickness, said plate having a first recess and a second recess in said upper surface, each of said first and second recesses being adapted to receive a locking element and having a side wall and a central axis parallel to said thickness;at least two bone screws each being adapted to engage one of the at least two of the bone portions, and each of said bone screws having a central longitudinal axis, a leading end for insertion into the one of the at least two of the bone portions and a trailing end opposite said leading end, said trailing end having a top surface oriented toward said trailing end of said bone screw and a bottom surface opposite said top surface oriented toward said leading end of said bone screw, said bottom surface being configured to contact said plate;at least two bone screw receiving holes extending through said plate from said upper surface through said lower surface, each of said at least two bone screw receiving holes having a side wall, a central longitudinal axis, and being adapted to receive one of said at least two bone screws to attach said plate to one of the at least two of the bone portions, a first of said bone screw receiving holes associated with and positionable over a first of the at least two, of the bone portions and a second of said bone screw receiving holes associated with and positionable over a second of the at least two of the bone portions, each of said at least two bone screw receiving holes having a seat configured to contact said bottom surface of said trailing end of said one of said at least two bone screws, said first and second recesses being associated with said first and said second of said at least two bone screw receiving holes, respectively, said side wall of said first of said at least two bone screw receiving holes intersecting said side wall of said first recess, said side wall of said second of said at least two bone screw receiving holes intersecting said side wall of said second recess, said central axis of said first recess being offset from said first of said at least two bone screw receiving holes, said central axis of said second recess being offset from said second of said at least two bone screw receiving holes; andat least one locking element adapted to lock to said plate only a single one of said bone screws inserted into a single one of said bone screw receiving holes, said locking element having a non-circular perimeter lying generally in a plane transverse to said central axis of said first recess and being adapted to be coupled to said plate prior to the insertion of said bone screw to be locked by said locking element in said bone screw receiving hole, said locking element being adapted to fit in said first recess and being moveable from an initial position that permits the insertion of said bone screw into said bone screw receiving hole to a final position that is adapted to extend over at least a portion of said top surface of said bone screw inserted into said bone screw receiving hole without extending over another of said bone screw receiving holes, said locking element being adapted to be rotated from the initial position to the final position, said locking element having an upper surface that does not extend above said upper surface of said plate. 2. The skeletal plating system of claim 1, wherein said top surface of said trailing end of said bone screw is generally transverse to the central longitudinal axis of said bone screw, said locking element contacting said top surface of said bone screw when in said final position. 3. The skeletal plating system of claim 1, wherein said each of said bone screws includes a head at said trailing end thereof, said heads residing above said lower surface of said plate when said bone screws are received in said bone screw receiving holes. 4. The skeletal plating system of claim 1, wherein said leading ends of said each of said bone screws extend beyond said lower surface of said plate. 5. A plate for aligning and maintaining bone portions of the same bone or of different bones in a selected spatial relationship for healing or fusion of the bone portions, said plate comprising: a longitudinal axis and a length sufficient to span and overlap portions of at least two of the bone portions, said plate having a first end and an opposite second end, and said length being therebetween, the longitudinal axis passing through said first and second ends along said length of said plate, said plate having a width, said length being greater than and perpendicular to said width said plate having a lower surface for placement against the at least two of the bone portions and an upper surface opposite said lower surface, and a thickness between said upper and lower surfaces, said width being greater than said thickness, said plate having a first recess and a second recess in said upper surface, each of said first and second recesses being adapted to receive a locking element and having a side wall and a central axis parallel to said thickness;at least two bone screw receiving holes extending through said plate from said upper surface through said lower surface, a first of said bone screw receiving holes associated with a first of the at least two of the bone portions and a second of said bone screw receiving holes associated with a second of the at least two of the bone portions, each of said bone screw receiving holes being adapted to receive a single bone screw to attach said plate to the at least two of the bone portions, said first and second recesses being associated with said first and said second of said at least two bone screw receiving holes, respectively; andat least one locking element adapted to lock to said plate only a single bone screw inserted into one of said bone screw receiving holes, said locking element having an upper surface having a non-circular perimeter lying generally in a plane transverse to said central axis of said first recess and being adapted to be coupled to said plate prior to the insertion of the single bone screw to be locked by said locking element in said bone screw receiving hole, said non-circular perimeter of said upper surface having a cross section no smaller than any other cross section through said locking element in a plane parallel to said non-circular perimeter, said locking element being adapted to fit in said first recess and being moveable from an initial position that permits the insertion of the single bone screw into said bone screw receiving hole to a final position that is adapted to extend over at least a portion of the single bone screw to be inserted without extending over another of said bone screw receiving holes, said locking element being adapted to be rotated from the initial position to the final position. 6. The plate of claim 5, further comprising at least one bone screw having a leading end for insertion into one of the at least two of the bone portions and a trailing end opposite said leading end, said trailing end including a surface generally transverse to a longitudinal axis of said bone screw, said locking element contacting said generally transverse surface of said bone screw. 7. The plate of claim 5, wherein said locking element is removably coupled to said plate. 8. The plate of claim 5, further comprising at least two bone screws each being adapted to engage one of the at least two of the bone portions, each of said bone screws having a central longitudinal axis, a leading end for insertion into said one of the at least two of the bone portions, and a trailing end opposite said leading end, said trailing end having a top surface oriented toward said trailing end of said bone screw and a bottom surface opposite said top surface oriented toward said leading end of said bone screw. 9. The plate of claim 8, wherein said each of said bone screws includes a head at said trailing end thereof, said heads residing above said lower surface of said plate when said bone screws are received in said bone screw receiving holes. 10. The plate of claim 8, wherein said leading ends of said each of said bone screws extend beyond said lower surface of said plate. 11. A plate for attachment to bone, said plate comprising: a longitudinal axis and a length, said plate having a first end and an opposite second end, and said length being therebetween, the longitudinal axis passing through said first and second ends along said length of said plate, said plate having a width, said length being greater than and perpendicular to said width, said plate having a lower surface for placement against the bone and an upper surface opposite said lower surface, and a thickness between said upper and lower surfaces, said width being greater than said thickness;at least two bone screw receiving holes extending through said plate from said upper surface through said lower surface, a first of said bone screw receiving holes associated with a first portion of the bone and a second of said bone screw receiving holes associated with a second portion of the bone, each of said bone screw receiving holes being adapted to receive a single bone screw to attach said plate to the portions of the bone; andsaid plate having at least one non-detachable locking portion adapted to lock to said plate only a single bone screw inserted into one of said bone screw receiving holes, said locking portion being moveable from an initial position that permits the insertion of the single bone screw to be locked by said locking portion in said bone screw receiving hole to a final position that is adapted to extend over at least a portion of the single bone screw to be retained to said plate without extending over another of said bone screw receiving holes, said locking portion having an upper surface that does not extend above said upper surface of said plate. 12. The plate of claim 11, further comprising at least one bone screw having a leading end for insertion into one of the at least two of the bone portions and a trailing end opposite said leading end, said trailing end including a surface generally transverse to a longitudinal axis of said bone screw, said locking portion contacting said generally transverse surface of said bone screw. 13. The plate of claim 11, wherein said locking portion is adapted to be rotated from the initial position to the final position. 14. The plate of claim 11, wherein at least a portion of said locking portion slides from the initial position to the final position. 15. The plate of claim 11, further comprising at least two bone screws each being adapted to engage one of the at least two of the bone portions, each of said bone screws having a central longitudinal axis, a leading end for insertion into said one of the at least two of the bone portions, and a trailing end opposite said leading end, said trailing end having a top surface oriented toward said trailing end of said bone screw and a bottom surface opposite said top surface oriented toward said leading end of said bone screw. 16. The plate of claim 15, wherein said each of said bone screws includes a head at said trailing end thereof, said heads residing above said lower surface of said plate when said bone screws are received in said bone screw receiving holes. 17. The plate of claim 15, wherein said leading ends of said each of said bone screws extend beyond said lower surface of said plate. 18. A skeletal plating system for aligning and maintaining bone portions of the same bone or of different bones in a selected spatial relationship for healing or fusion of the bone portions, comprising: a plate having a longitudinal axis and a length sufficient to span and overlap at least two of the bone portions, said plate having a first end and an opposite second end, and said length being therebetween, the longitudinal axis passing through said first and second ends along said length of said plate, said plate having a width, said length being greater than and perpendicular to said width, said plate having a lower surface for placement against the at least two of the bone portions and an upper surface opposite said lower surface, and a thickness between said upper and lower surfaces, said width being greater than said thickness, said plate having a first recess and a second recess in said upper surface, each of said first and second recesses being adapted to receive a locking element and having a side wall and a central axis parallel to said thickness;at least two bone screws each being adapted to engage one of the at least two of the bone portions, and each of said bone screws having a central longitudinal axis, a leading end for insertion into said one of the at least two of the bone portions and a trailing end opposite said leading end, said trailing end having a top surface oriented toward said trailing end of said bone screw and a bottom surface opposite said top surface oriented toward said leading end of said bone screw, said bottom surface being configured to contact said plate;at least two bone screw receiving holes extending through said plate from said upper surface through said lower surface, each of said at least two bone screw receiving holes having a side wall, a central longitudinal axis, and being adapted to receive one of said at least two bone screws to attach said plate to one of the at least two of the bone portions, a first of said bone screw receiving holes associated with and positionable over a first of the at least two of the bone portions and a second of said bone screw receiving holes associated with and positionable over a second of the at least two of the bone portions, said first and second recesses being associated with said first and said second of said at least two bone screw receiving holes, respectively, said side wall of said first of said at least two bone screw receiving holes intersecting said side wall of said first recess, said side wall of said second of said at least two bone screw receiving holes intersecting said side wall of said second recess, said central axis of said first recess being offset from said first of said at least two bone screw receiving holes, said central axis of said second recess being offset from said second of said at least two bone screw receiving holes; andat least one locking element adapted to lock to said plate only a single one of said bone screws inserted into a single one of said bone screw receiving holes, said locking element having a non-circular perimeter lying generally in a plane transverse to said central axis of said first recess and being adapted to be coupled to said plate prior to the insertion of said bone screw to be locked by said locking element in said bone screw receiving hole, said non-circular perimeter of said upper surface having a cross section no smaller than any other cross section through said locking element in a plane parallel to said non-circular perimeter, said locking element being adapted to fit in said first recess and being moveable from an initial position that permits the insertion of said bone screw into said bone screw receiving hole to a final position that is adapted to extend over at least a portion of said top surface of said bone screw inserted into said bone screw receiving hole without extending over another of said bone screw receiving holes, said locking element being adapted to be rotated from the initial position to the final position, said locking element having an upper surface that does not extend above said upper surface of said plate. 19. The skeletal plating system of claim 18, wherein said top surface of said trailing end of said bone screw is generally transverse to the central longitudinal axis of said bone screw, said locking element contacting said top surface of said bone screw when in said final position. 20. The skeletal plating system of claim 18, wherein said each of said bone screws includes a head at said trailing end thereof, said heads residing above said lower surface of said plate when said bone screws are received in said bone screw receiving holes. 21. The skeletal plating system of claim 18, wherein said leading ends of said each of said bone screws extend beyond said lower surface of said plate.
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