US2005065519A1PendingUtilityA1

Threaded spinal device for insertion between vertebral bodies

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Assignee: KARLIN TECHNOLOGY INCPriority: Jun 13, 1988Filed: Nov 4, 2004Published: Mar 24, 2005
Est. expiryJun 13, 2008(expired)· nominal 20-yr term from priority
Inventors:Gary K. Michelson
A61F 2002/30593A61F 2/4603A61F 2002/30785A61B 17/1757A61B 17/8888A61F 2/442A61F 2002/2835A61F 2002/4627A61F 2002/30774A61F 2002/3085A61F 2002/30235A61F 2220/0025A61F 2/30744A61F 2002/4619A61F 2230/0017A61B 2017/0256A61F 2/446A61B 2090/036A61F 2230/0069A61F 2002/4681A61B 17/1671A61F 2/4611A61F 2002/30787A61F 2002/30143A61F 2002/4629A61F 2002/30405A61F 2002/448
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Claims

Abstract

An artificial spinal device is disclosed for insertion between two adjacent vertebrae. Instrumentation and procedure is also disclosed.

Claims

exact text as granted — not AI-modified
1 . An at least in part hollow spinal fusion device for insertion at least in part in between the external perimeters of two spaced apart vertebral bodies of a human spine, said device comprising: 
 opposed arcuate portions each having an interior facing surface and an exterior facing surface, said interior facing surfaces being spaced apart to define a hollow interior, each of said opposed arcuate portions having at least one opening therethrough in communication with said hollow interior;    and a thread on at least a portion of said exterior facing surfaces of said opposed arcuate portions.    
     
     
         2 . The spinal device of  claim 1 , wherein said device is at least in part cylindrical.  
     
     
         3 . The spinal device of  claim 1 , wherein said device has a mid-longitudinal axis and has a generally circular cross-section transverse to the mid-longitudinal axis over at least a portion thereof.  
     
     
         4 . The spinal device of  claim 1 , wherein said device has opposite ends between said opposed arcuate portions, at least one of said ends being at least in part open.  
     
     
         5 . The spinal device of  claim 4 , wherein said at least one end being at least in part open is configured to threadably engage a length extending member.  
     
     
         6 . The spinal device of  claim 4 , wherein said at least one end being at least in part open is adapted to threadably engage an end cap.  
     
     
         7 . The spinal device of  claim 6 , wherein said end cap is a length extending member.  
     
     
         8 . The spinal device of  claim 7 , wherein said length extending member is adapted to contact at least one of the spaced apart vertebral bodies.  
     
     
         9 . The spinal device of  claim 1 , wherein said opposed arcuate portions include a plurality of said openings therethrough.  
     
     
         10 . The spinal device of  claim 4 , wherein said device has a maximum diameter and a maximum length from one of said opposite ends to the other of said opposite ends, said maximum length being greater than said maximum diameter.  
     
     
         11 . The spinal device of  claim 1 , wherein said thread on said exterior facing surfaces is not continuous.  
     
     
         12 . The spinal device of  claim 1 , wherein said thread has at least one interruption.  
     
     
         13 . The spinal device of  claim 1 , wherein said exterior facing surfaces are not threaded between spaced apart portions of said exterior facing surfaces that are threaded.  
     
     
         14 . The spinal device of  claim 1 , in combination with bone.  
     
     
         15 . The spinal device of  claim 14 , wherein said bone is loaded in said hollow interior of said device.  
     
     
         16 . The spinal device of  claim 14 , wherein said bone is compressively loaded in said device.  
     
     
         17 . The spinal device of  claim 1 , in combination with a fusion promoting substance other than bone.  
     
     
         18 . The spinal device of  claim 1 , wherein said device comprises at least in part a fusion promoting substance.  
     
     
         19 . The spinal device of  claim 1 , wherein said device is treated with a fusion promoting substance.  
     
     
         20 . The spinal device of  claim 1 , in combination with a source of osteogenesis.  
     
     
         21 . The spinal device of  claim 1 , wherein said device comprises an implantation material that is stronger than bone.  
     
     
         22 . The spinal device of  claim 1 , wherein said device comprises an implantation material that comprises a bone ingrowth material.  
     
     
         23 . The spinal device of  claim 1 , wherein said device is in combination with an implantation material that intrinsically participates in the growth of bone through said device.  
     
     
         24 . The spinal device of  claim 1 , wherein said opposed arcuate portions have a porous surface.  
     
     
         25 . The spinal device of  claim 1 , wherein said device comprises an implantation material that is porous.  
     
     
         26 . The spinal device of  claim 1 , wherein said device comprises an ASTM device quality material.  
     
     
         27 . The spinal device of  claim 26 , wherein said ASTM quality material comprises titanium.  
     
     
         28 . The spinal device of  claim 1 , wherein said spinal device is an artificial spinal implant.  
     
     
         29 . The spinal device of  claim 1 , wherein said spinal device is an interbody spinal implant.  
     
     
         30 . A spinal fusion system comprising: 
 a first spinal fusion device for insertion at least in part in between the external perimeters of two spaced apart vertebral bodies of a human spine, said first spinal device comprising opposed arcuate portions each having an interior facing surface and an exterior facing surface, said interior facing surfaces being spaced apart to define a hollow interior, each of said opposed arcuate portions having at least one opening therethrough in communication with said hollow interior, and a thread on at least a portion of said exterior facing surfaces of said opposed arcuate portions; and    a second spinal device adapted to penetrably engage each of the spaced apart vertebral bodies, said second spinal device comprising an elongated member having a plurality of openings therethrough along at least a portion of the length of said second spinal device.    
     
     
         31 . The spinal fusion system of  claim 30 , wherein said second spinal device includes a threaded member for penetrably engaging at least one of the spaced apart vertebral bodies.  
     
     
         32 . The spinal fusion system of  claim 30 , wherein said first spinal device is at least in part cylindrical.  
     
     
         33 . The spinal fusion system of  claim 30 , wherein said first spinal device has a mid-longitudinal axis and has a generally circular cross-section transverse to the mid-longitudinal axis over at least a portion thereof.  
     
     
         34 . The spinal fusion system of  claim 30 , wherein said first spinal device has opposite ends between said opposed arcuate portions, at least one of said ends being at least in part open.  
     
     
         35 . The spinal fusion system of  claim 34 , wherein said at least one end being at least in part open is configured to threadably engage a length extending member.  
     
     
         36 . The spinal fusion system of  claim 34 , wherein said at least one end being at least in part open is adapted to threadably engage an end cap.  
     
     
         37 . The spinal fusion system of  claim 36 , wherein said end cap is a length extending member.  
     
     
         38 . The spinal fusion system of  claim 37 , wherein said length extending member is adapted to contact at least one of the spaced apart vertebral bodies.  
     
     
         39 . The spinal fusion system of  claim 30 , wherein each of said opposed arcuate portions includes a plurality of said openings therethrough.  
     
     
         40 . The spinal fusion system of  claim 34 , wherein said first spinal device has a maximum diameter and a maximum length from one of said opposite ends to the other of said opposite ends, said maximum length being greater than said maximum diameter.  
     
     
         41 . The spinal fusion system of  claim 30 , wherein said thread on said exterior facing surfaces is not continuous.  
     
     
         42 . The spinal fusion system of  claim 41 , wherein said thread has at least one interruption.  
     
     
         43 . The spinal fusion system of  claim 30 , wherein said exterior facing surfaces are not threaded between spaced apart portions of said exterior facing surfaces that are threaded.  
     
     
         44 . The spinal fusion system of  claim 30 , in combination with bone.  
     
     
         45 . The spinal fusion system of  claim 44 , wherein said bone is loaded in said hollow interior of said first spinal device.  
     
     
         46 . The spinal fusion system of  claim 44 , wherein said bone is compressively loaded in said first spinal device.  
     
     
         47 . The spinal fusion system of  claim 30 , in combination with a fusion promoting substance other than bone.  
     
     
         48 . The spinal fusion system of  claim 30 , wherein said first spinal device comprises at least in part a fusion promoting substance.  
     
     
         49 . The spinal fusion system of  claim 30 , wherein said first spinal device is treated with a fusion promoting substance.  
     
     
         50 . The spinal fusion system of  claim 30 , in combination with a source of osteogenesis.  
     
     
         51 . The spinal fusion system of  claim 30 , wherein said first spinal device comprises an implantation material that is stronger than bone.  
     
     
         52 . The spinal fusion system of  claim 30 , wherein said first spinal device comprises an implantation material that comprises a bone ingrowth material.  
     
     
         53 . The spinal fusion system of  claim 30 , in combination with an implantation material that intrinsically participates in the growth of bone through said first spinal device.  
     
     
         54 . The spinal fusion system of  claim 30 , wherein said opposed arcuate portions have a porous surface.  
     
     
         55 . The spinal fusion system of  claim 30 , wherein said first spinal device comprises an implantation material that is porous.  
     
     
         56 . The spinal fusion system of  claim 30 , wherein at least one of said first spinal device and said second spinal device comprises an ASTM implant quality material.  
     
     
         57 . The spinal fusion system of  claim 56 , wherein said ASTM quality material comprises titanium.  
     
     
         58 . The spinal fusion system of  claim 30 , wherein said first spinal device is an artificial spinal implant.  
     
     
         59 . The spinal fusion system of  claim 30 , wherein said first spinal device is an interbody spinal implant.

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