US2008071375A1PendingUtilityA1

Artificial spinal disc replacement system and method

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Individually held — no corporate assignee on recordPriority: Oct 10, 2005Filed: Oct 31, 2007Published: Mar 20, 2008
Est. expiryOct 10, 2025(expired)· nominal 20-yr term from priority
Inventors:Donna Jean CarverChad Anthony BarrieJohn David Herrera
A61F 2002/30604A61F 2002/30772A61F 2310/00023A61F 2002/30433A61F 2230/0034A61F 2310/00029A61F 2002/30574A61F 2220/0041A61F 2002/30187A61F 2002/30571A61F 2/442A61F 2002/4631
47
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Claims

Abstract

An artificial spinal disc implant system for intervertebral disc replacement ( 0810 ) is disclosed which is formed from an upper ( 0801 ) and lower ( 0802 ) bracket which mate to upper and lower spinal vertebrae via upper ( 0831 ) and lower ( 0832 ) vertebral contact surfaces on the upper ( 0801 ) and lower ( 0802 ) brackets. The upper ( 0801 ) and lower ( 0802 ) brackets are joined together via springs ( 0811 ) connected to the upper bracket ( 0801 ) which rest in spring guide tracks ( 0812 ) on the lower bracket. The springs ( 0811 ) are connected to the upper bracket ( 0801 ) via the use of spring fasteners ( 0821, 0822 ). The upper ( 0801 ) and lower ( 0802 ) brackets may be installed in sections ( 0851, 0861, 0871, 0852, 0862, 0872 ) using laparoscopic surgical techniques and are attached to upper/lower spinal vertebrae respectively via adhesive means applied using injection holes/ports ( 0841, 0842 ) in the upper ( 0801 ) and lower ( 0802 ) brackets respectively.

Claims

exact text as granted — not AI-modified
1 . An artificial spinal disc replacement system comprising: 
 (a) One-piece upper bracket further comprising a spring, spring fastener, and upper vertebral contact surface;    (b) One-piece lower bracket further comprising lower vertebral contact surface and spring guide track;    wherein    said upper bracket and said spring are connected to each other via said spring fastener;    said spring on said upper bracket rests in said spring guide track on said lower bracket, permitting said upper bracket to rotate axially on said lower bracket;    said upper bracket is suitable for attachment to an upper spinal vertebrae via said upper vertebral contact surface;    said lower bracket is suitable for attachment to a lower spinal vertebrae via said lower vertebral contact surface.    
   
   
       2 . The artificial spinal disc replacement system of  claim 1  wherein said upper bracket further comprises lateral injection holes/ports for adhesive.  
   
   
       3 . The artificial spinal disc replacement system of  claim 1  wherein said lower bracket further comprises lateral injection holes/ports for adhesive.  
   
   
       4 . The artificial spinal disc replacement system of  claim 1  wherein said upper bracket, said spring, and said spring fastener are integrated into a single unitary structure.  
   
   
       5 . The artificial spinal disc replacement system of  claim 1  wherein said upper bracket comprises a plurality of springs.  
   
   
       6 . The artificial spinal disc replacement system of  claim 1  wherein said lower bracket comprises a plurality of spring guide tracks.  
   
   
       7 . The artificial spinal disc replacement system of  claim 1  wherein said upper bracket is enlarged beyond a half-circle to permit maximum surface contact with said upper spinal vertebrae.  
   
   
       8 . The artificial spinal disc replacement system of  claim 1  wherein said lower bracket is enlarged beyond a half-circle to permit maximum surface contact with said lower spinal vertebrae.  
   
   
       9 . The artificial spinal disc replacement system of  claim 1  wherein said upper vertebral contact surface is convex.  
   
   
       10 . The artificial spinal disc replacement system of  claim 1  wherein said upper vertebral contact surface is concave.  
   
   
       11 . The artificial spinal disc replacement system of  claim 1  wherein said lower vertebral contact surface is convex.  
   
   
       12 . The artificial spinal disc replacement system of  claim 1  wherein said lower vertebral contact surface is concave.  
   
   
       13 . The artificial spinal disc replacement system of  claim 1  wherein said upper bracket further comprises a spherical bearing which permits said spring fastener to engage said spring through a hole in said spherical bearing.  
   
   
       14 . The artificial spinal disc replacement system of  claim 1  wherein said upper bracket further comprises a chamfered hole which permits said spring fastener to engage said spring through said chamfered hole in said upper bracket.  
   
   
       15 . An artificial spinal disc replacement system comprising: 
 (a) Upper bracket further comprising a fusion block, fusion block fastener, and upper vertebral contact surface;    (b) Lower bracket further comprising lower vertebral contact surface and fusion block guide track;    wherein    said upper bracket and said fusion block are connected to each other via said fusion block fastener;    said fusion block on said upper bracket rests in said fusion block guide track on said lower bracket, permitting said upper bracket to be fixed to said lower bracket;    said upper bracket is suitable for attachment to an upper spinal vertebrae via said upper vertebral contact surface;    said lower bracket is suitable for attachment to a lower spinal vertebrae via said lower vertebral contact surface.    
   
   
       16 . The artificial spinal disc replacement system of  claim 15  wherein said upper bracket further comprises lateral injection holes/ports for adhesive.  
   
   
       17 . The artificial spinal disc replacement system of  claim 15  wherein said lower bracket further comprises lateral injection holes/ports for adhesive.  
   
   
       18 . The artificial spinal disc replacement system of  claim 15  wherein said upper bracket comprises a plurality of fusion blocks.  
   
   
       19 . The artificial spinal disc replacement system of  claim 15  wherein said lower bracket comprises a plurality of fusion block guide tracks.  
   
   
       20 . The artificial spinal disc replacement system of  claim 15  wherein said upper bracket is enlarged beyond a half-circle to permit maximum surface contact with said upper spinal vertebrae.  
   
   
       21 . The artificial spinal disc replacement system of  claim 15  wherein said lower bracket is enlarged beyond a half-circle to permit maximum surface contact with said lower spinal vertebrae.  
   
   
       22 . The artificial spinal disc replacement system of  claim 15  wherein said upper vertebral contact surface is convex.  
   
   
       23 . The artificial spinal disc replacement system of  claim 15  wherein said upper vertebral contact surface is concave.  
   
   
       24 . The artificial spinal disc replacement system of  claim 15  wherein said lower vertebral contact surface is convex.  
   
   
       25 . The artificial spinal disc replacement system of  claim 15  wherein said lower vertebral contact surface is concave.

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