Threadless multi-lock anterior cervical plating system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-005/00
A61B-017/58
출원번호
UP-0883086
(2004-07-01)
등록번호
US-7704255
(2010-05-20)
발명자
/ 주소
Michelson, Gary K.
출원인 / 주소
Warsaw Orthopedic, Inc.
대리인 / 주소
Martin & Ferraro, LLP
인용정보
피인용 횟수 :
43인용 특허 :
168
초록▼
Anatomically contoured anterior cervical plates with bone ingrowth surfaces, providing for intersegmental compressive preloading, and a rigid and locked interface to all of the bone screws, with those engaging the vertebrae deployed in highly convergent pairs. The bone screws have a tapered self-tap
Anatomically contoured anterior cervical plates with bone ingrowth surfaces, providing for intersegmental compressive preloading, and a rigid and locked interface to all of the bone screws, with those engaging the vertebrae deployed in highly convergent pairs. The bone screws have a tapered self-tapping leading end, an increasing root diameter with a generally constant outer diameter with a thread that is narrow and sharp throughout and an enlarged head portion capable of an interference fit to the receiving holes of the plate. Instrumentation consists of plate holders, a compression apparatus and a pilot hole forming device that interlocks with the plate. Methods for spinal compression and bone hole preparation are provided.
대표청구항▼
What is claimed is: 1. A plate system adapted for application to the anterior human spine and for contacting at least a portion of the anterior aspects of at least two vertebral bodies, said plate system comprising: a plate having a longitudinal axis and a length sufficient to span a disc space and
What is claimed is: 1. A plate system adapted for application to the anterior human spine and for contacting at least a portion of the anterior aspects of at least two vertebral bodies, said plate system comprising: a plate having a longitudinal axis and a length sufficient to span a disc space and overlap portions of at least two adjacent vertebral bodies, said plate having a lower surface for placement against the vertebral bodies and an upper surface opposite said lower surface; at least two bone screw receiving holes extending through said plate from said upper surface through said lower surface, each of said bone screw receiving holes having a central longitudinal axis and being adapted to receive a bone screw to attach said plate to the spine; and a locking element for preventing the inadvertent backing out of at least two of the bone screws from within said bone screw receiving holes, said locking element being adapted to engage said plate to lock the bone screws without threading into said plate, wherein said locking element is adapted to be coupled to said plate prior to the insertion of the bone screws in said bone screw receiving holes, and adapted to move, while engaged to said plate, from a first position which permits the insertion of one of the bone screws into one of said bone screw holes to a second position which prevents the bone screw from backing out of said bone screw hole. 2. The plate system of claim 1, wherein said locking element is adapted to slide over at least a portion of said bone screw receiving holes. 3. The plate system of claim 1, wherein at least a portion of said locking element is adapted to slide under a lower-facing portion of said plate. 4. The plate system of claim 1, wherein said locking element is a rivet. 5. The plate system of claim 1, wherein said locking element includes a slot. 6. The plate system of claim 1, wherein said locking element has a lower surface having a portion forming at least one of a cam and a ramp. 7. The plate system of claim 1, wherein said locking element has a height and a cross section transverse to the height, the transverse cross section of said locking element being non-circular. 8. The plate system of claim 1, wherein said locking element has an upper surface with a minimum transverse cross sectional dimension and a maximum transverse cross sectional dimension, the minimum transverse cross sectional dimension of said upper surface of said locking element being greater than one-half a width of said plate. 9. The plate system of claim 8, wherein the maximum transverse cross sectional dimension of said upper surface of said locking element is less than one-half the length of said plate. 10. The plate system of claim 1, wherein said plate includes a recess configured to receive at least a portion of said locking element. 11. The plate system of claim 1, wherein said recess includes linear portions parallel to the longitudinal axis of said plate. 12. The plate system of claim 1, wherein said locking element is removably coupled to said plate. 13. The plate system of claim 1, in combination with at least two bone screws each having a central longitudinal axis and being adapted to engage each of the at least two vertebral bodies, respectively, each of said bone screws having a leading end for insertion into the vertebral bodies and a trailing end opposite said leading end. 14. The plate system of claim 1, wherein at least a first pair of said bone screw receiving holes is transversely oriented side-by-side in said plate to overlie the anterior aspect of a cervical vertebral body, said locking element being adapted to cover at least in part a portion of each of said transversely oriented side-by-side bone screw receiving holes. 15. The plate system of claim 1, in combination with a bone graft. 16. The plate system of claim 1, in combination with a bone growth promoting material. 17. The plate system of claim 16, wherein said bone growth promoting material includes at least one of bone, bone morphogenetic protein, hydroxyapatite, and hydroxyapatite tricalcium phosphate. 18. The plate system of claim 1, wherein at least a portion of one of said plate and said locking element is a bioresorbable material. 19. A plate system adapted for application to the anterior human spine and for contacting at least a portion of the anterior aspects of at least two vertebral bodies, said plate system comprising: a plate having a longitudinal axis and a length sufficient to span a disc space and overlap portions of at least two adjacent vertebral bodies, said plate having a lower surface for placement against the vertebral bodies and an upper surface opposite said lower surface; at least two bone screw receiving holes extending through said plate from said upper surface through said lower surface, each of said bone screw receiving holes having a central longitudinal axis and being adapted to receive a bone screw to attach said plate to the spine; and a locking element for preventing the inadvertent backing out of at least two of the bone screws from within said bone screw receiving holes, said locking element being adapted to engage said plate to lock the bone screws without threading into said plate, wherein said locking element is a rivet, and is adapted to move, while engaged to said plate, from a first position which permits the insertion of one of the bone screws into one of said bone screw holes to a second position which prevents the bone screw from backing out of said bone screw hole.
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이 특허에 인용된 특허 (168)
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Lowery Gary (Gainesville FL) Sherman Michael C. (Memphis TN) Ray ; III Eddie F. (Cordova TN) Coates Bradley J. (Cordova TN), Anterior cervical plating system.
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Aust Gilbert M. (100 Washington St. Ste. 204 Huntsville AL 35801) Taylor Timothy E. (100 Washington St. Ste. 204 Huntsville AL 35801), Anterior lumbar/cervical bicortical compression plate.
Errico Joseph P. (P.O. Box 3070 Garden City NY 11531) Errico Thomas J. (5 Crest Acre Ct. Summit NJ 07901) Ralph James (71 Manito Ave. Oakland NJ 07436), Anterior spinal polyaxial locking screw plate assembly.
Warden Karen E. (Cleveland OH) Carson William L. (Columbia MO) Stahurski Terrence M. (Rocky River OH), Apparatus for maintaining spinal elements in a desired spatial relationship.
Mehdian Seyed M. H. (Princess Elizabeth Orthopaedic Hospital ; Wonford Road Exeter ; EX2 4UE ; Devon GB2), Apparatus for use in the treatment of spinal disorders.
Oxland Thomas R. (Bloomington MN) Kohrs Douglas W. (Edina MN) Erickson Donald (Stillwater MN) Sand Paul (Roseville MN), Cervical spine stabilization system.
Sutter Franz (Niederdorf CHX) Straumann Fritz (Waldenburg CHX) Raveh Joram (Oberbottigen CHX), Device comprising an implant and screws for fastening said implant to a bone, and a device for connecting two separated.
Eitenmuller Jurgen (Brauweiler DEX) Offergeld Heinz (Monchen-Gladbach DEX) Michaeli Walter (Aachen DEX), Device for osteosynthesis and process for producing it.
Trml Pertti (Reikonkatu 7 C 7 SF-33730 Tampere FIX) Vainionp Seppo (Orapihlajatie 21-27 B 12 SF-00320 Helsinki FIX) Rokkanen Pentti (Marjaniemenranta 29 SF-00930 Helsinki FIX) Helevirta Pertti (Ojava, Layered surgical biocomposite material.
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Vignaud Jean-Louis (10 impasse Francois Audouin F-33400 Talence FRX) Henry Patrick (19 avenue de la Rpublique F-92400 Courbevoie FRX), Multi-function device for the osteosynthesis of rachis.
Foley Kevin T. (Memphis TN) Klara Peter M. (Norfolk VA) Maxwell Keith (Asheville NC) Middleton Lance (Memphis TN) Morrison Matthew M. (Memphis TN), Osteosynthesis apparatus.
Calderale Pasquale M. (Via Comissetti ; 11 Pianezza ITX 10044) Pipino Francesco (Via Torre di Brengola ; 4/6 Palese-Bari ITX 70057), Osteosynthesis means for the connection of bone fracture segments.
Laboureau Jacques Philippe (24 ; rue Fontaine Billenois Dijon F-21000 FRX) Dericks Gerard H. (3087 Noela Dr. Honolulu HI 96815), Osteosynthesis plate-staple.
Perren Stephan N. (Dorf CHX) Straumann Fritz (Waldenburg CHX) Sutter Franz (Niederdorf CHX) Tepic Slobodan (Davos CHX), Point contact bone compression plate.
Tepic Slobodan (Davos CHX) Perren Stephen (Davos Dorf CHX) Straumann Fritz (Waldenburg CHX) Sutter Franz (Niederdorf CHX), Point contact bone compression plate.
Errico Joseph P. (Hempstead NY) Errico Thomas J. (Summit NJ) Ralph James (Oakland NJ), Posterior spinal polyaxial locking lateral mass screw plate assembly.
Spector Myron (Charleston SC) Kwiatkowski George T. (Greenbrook NJ) Smarock Walter H. (Somerville NJ) Michno ; Jr. Michael J. (Somerville NJ), Prosthetic devices having coatings of selected porous bioengineering thermoplastics.
Gogolewski Sylwester (Alvaneu-Dorf CHX) Perren Stephan M. (Davos CHX), Self-locking resorbable screws and plates for internal fixation of bone fractures and tendon-to-bone attachment.
Gournay Jose,FRX ; Petit Dominique,FRX ; Saurat Jean,FRX, Threaded clamping plug for interconnecting two implants of a spinal osteosynthesis instrumentation or other implants.
Yuan Hansen A. (5066 Pine Valley Dr. Fayetteville NY 13064) Lin Chih-I (14292 Spring Vista La. Chino Hills CA 91709), Vertebral auxiliary fixation device.
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