Device and template for canine humeral slide osteotomy

Abstract

In the field of canine humeral osteotomy, an osteotomy plate including a proximal plate portion lying substantially in a first plane for application to the humerus. The proximal plate portion has a bottom surface adapted for application to the surface of the humerus, and the proximal plate portion has at least one overlapping hole formed therein. The osteotomy plate also includes a distal plate portion lying substantially in a second plane for application to the humerus. The distal plate portion has a bottom surface adapted for application to the surface of the humerus, and the distal plate portion has at least one overlapping hole formed therein. The osteotomy plate also includes a transition region connecting the proximal plate portion to the distal plate portion.

What is claimed is: 
     
         1 . In the field of canine humeral osteotomy, an osteotomy plate, comprising:
 a proximal plate portion lying substantially in a first plane for application to the humerus, said proximal plate portion having a bottom surface adapted for application to the surface of the humerus, said proximal plate portion having at least one overlapping hole formed therein:   a distal plate portion lying substantially in a second plane for application to the humerus, said distal plate portion having a bottom surface adapted for application to the surface of the humerus, said distal plate portion having at least one overlapping hole formed therein: and   a transition region connecting said proximal plate portion to said distal plate portion.   
     
     
         2 . The osteotomy plate of  claim 1  wherein said first plane and said second plane are substantially parallel to one-another. 
     
     
         3 . The osteotomy plate of  claim 1  wherein said transition region is a stepped transition region which is substantially nonparallel to either of said first plane and said second plane. 
     
     
         4 . The osteotomy plate of  claim 1  wherein said plate is manufactured of a material selected from the group consisting of stainless steel, titanium a nonreactive material, or combinations thereof. 
     
     
         5 . The osteotomy plate of  claim 1  wherein said overlapping hole is formed normal to the top side of the plate. 
     
     
         6 . The osteotomy plate of  claim 1 , wherein said overlapping hole is formed at an angle offset from normal to the top side of the plate. 
     
     
         7 . The osteotomy plate of  claim 1 , wherein a first of the overlapping holes is formed normal to the top side of the plate and a second of the overlapping holes is formed at an angle offset from normal to the top side of the plate. 
     
     
         8 . The osteotomy plate of  claim 1  wherein said overlapping hole defines an aperture having a threaded surface. 
     
     
         9 . The osteotomy plate of  claim 1  wherein the overlapping hole is one of a set of overlapping holes. 
     
     
         10 . The osteotomy plate of  claim 9  wherein the set of overlapping holes are aligned along a longitudinal axis of the plate. 
     
     
         11 . The osteotomy plate of  claim 9  wherein the set of overlapping holes are positioned in a staggered arrangement with respect to a longitudinal axis of the plate. 
     
     
         12 . In the field of canine humeral osteotomy, an osteotomy plate, comprising:
 a proximal plate portion lying substantially in a first plane for application to the humerus, said proximal plate portion having a bottom surface adapted for application to the surface of the humerus, said proximal plate portion having at least one dynamic compression hole formed therein:   a distal plate portion lying substantially in a second plane for application to the humerus, said distal plate portion having a bottom surface adapted for application to the surface of the humerus, said distal plate portion having at, least one dynamic compression hole formed therein:   a transition region connecting said proximal plate portion to said distal plate portion; and a round nondynamic compression hole located adjacent to said transition region and formed in one of said proximal and said distal portions.   
     
     
         13 . The osteotomy plate of  claim 12  wherein said first plane and said second plane are substantially parallel to one-another. 
     
     
         14 . The osteotomy plate of  claim 12  wherein said transition region is a stepped transition region which is substantially nonparallel to either of said first plane and said second plane. 
     
     
         15 . The osteotomy plate of  claim 12  wherein said plate is manufactured of a material selected from the group consisting of stainless steel, titanium, a nonreactive material, or combinations thereof. 
     
     
         16 . The osteotomy plate of  claim 12  wherein either one of said dynamic compression hole or said round hole is a threaded hole for engaging a bone screw having a thread configured and dimensioned to mate the thread of said threaded hole. 
     
     
         17 . The osteotomy plate of  claim 12  wherein each of said dynamic compression hole and said round hole is a threaded hole for engaging a bone screw having a thread configured and dimensioned to mate the thread of said threaded holes. 
     
     
         18 . The osteotomy plate of  claim 12  being a part of an osteotomy system and further comprising a template for said osteotomy plate, said template comprising:
 an elongate member having a first end and second end: 
 a first screw hole formed near said first end and a second screw hole formed near said second end, said first and said second screw holes being positioned and dimensioned to accommodate the bone screws being used with said osteotomy plate: 
 a gap formed near the center of said template, said gap dimensioned to accommodate the thickness of a saw blade being used to perform the osteotomy: and 
 flare members formed on either side of said gap, said flare members bridging said gap, so as not to impede the oscillation of a bone saw being used to perform the osteotomy. 
 
     
     
         19 . In the field of canine humeral osteotomy, a template for use with an osteotomy plate, said template comprising:
 an elongate member having a first end and second end;   a first screw hole formed near said first end and a second screw hole formed near said second end, said first and said second screw holes being positioned and dimensioned to accommodate the bone screws being used with the osteotomy plate:   a gap formed near the center of said template, said gap dimensioned to accommodate the thickness of a saw blade being used to perform the osteotomy: and   flare members formed on either side of said gap, said flare members bridging said gap, so as not to impede the oscillation of a bone saw being used to perform the osteotomy.   
     
     
         20 . The template of  claim 19  wherein said template is manufactured of a material selected from the group consisting of stainless steel, titanium, a nonreactive material, or combinations thereof.