Surgery control tool for spinal correction rod
Disclosed is a surgery control tool: being no patient implant, including: an elongated body having the shape and the size of a spinal correction rod, end contact parts being able to contact a patient implanted spinal correction rod implant, spacers extending from the elongated body towards the end contact parts.
1. Surgery control tool:
being no patient implant,
comprising:
an elongated body ( 7 , 37 ) having the shape and the size of a spinal correction rod,
end contact parts ( 9 , 39 ) being able to contact a patient implanted spinal correction rod implant ( 12 , 13 ),
spacers ( 8 , 38 ) extending from said elongated body ( 7 , 37 ) towards said end contact parts ( 9 , 39 ), wherein said elongated body ( 7 , 37 ) is sufficiently rigid so as not to
reproduce the curvature of said patient implanted spinal
correction rod implant ( 12 , 13 ), via said spacers ( 8 , 38 ), when
said end contact parts ( 9 , 39 ) are contacting said patient
implanted spinal correction rod implant ( 12 , 13 ).
2. Surgery control tool, according to claim 1 , wherein most of said spacers ( 8 , 38 ) extending from said elongated body ( 7 , 37 ), extend orthogonally from said elongated body ( 7 , 37 ),
and wherein most of said spacers ( 8 , 38 ) extending from said elongated body ( 7 , 37 ), have different lengths depending on the curvature radius respectively at their junction points with said elongated body ( 7 , 37 ).
3. Surgery control tool, according to claim 1 , wherein most of said spacers ( 8 , 38 ) extending from said elongated body ( 7 , 37 ), extend both orthogonally from said elongated body ( 7 , 37 ) and orthogonally from said patient implanted spinal correction rod implant ( 12 , 13 ),
and wherein most of said spacers ( 8 , 38 ) extending orthogonally from said elongated body ( 7 , 37 ) and orthogonally from said patient implanted spinal correction rod implant ( 12 , 13 ), have the same length.
4. Surgery control tool, according to claim 1 , wherein most of said spacers ( 8 , 38 ) disposed along said elongated body ( 7 , 37 ), are longitudinally mobile relative to said elongated body ( 7 , 37 ),
and wherein said longitudinal mobility range is less than 8 mm, and/or wherein said longitudinal mobility range is more than 2 mm.
5. Surgery control tool, according to claim 1 , wherein most of said spacers ( 8 , 38 ) extending from said elongated body ( 7 , 37 ), are disposed along said elongated body ( 7 , 37 ).
6. Surgery control tool, according to claim 1 , wherein at least one of said spacers ( 8 , 38 ) disposed along said elongated body ( 7 , 37 ) is a reference spacer adapted to be located at a specific spot relative to a predetermined vertebra along patient spine ( 11 ).
7. Surgery control tool, according to claim 1 , further comprising at least 3 spacers ( 8 , 38 ) per region of said elongated body ( 7 , 37 ) presenting a curvature of same convexity.
8. Surgery control tool, according to claim 1 , wherein most of said end contact parts ( 9 , 39 ) are able to slide laterally relative to said elongated body ( 7 , 37 ) longitudinal direction, when being in contact with said patient implanted spinal correction rod implant ( 12 , 13 ),
or wherein most of said end contact parts ( 9 , 39 ) are able to slide laterally relative to said elongated body ( 7 , 37 ) longitudinal direction, when having only a contact point with said patient implanted spinal correction rod implant ( 12 , 13 ).
9. Surgery control tool, according to claim 8 , wherein:
either said elongated body ( 7 , 37 ) is two dimensional and sliding range is less than 5 cm,
or said elongated body ( 7 , 37 ) is three dimensional and sliding range is less than 3 cm.
10. Surgery control tool according to claim 1 , having the shape and the size and the length and the curvature of a patient specific spinal correction rod.
11. Surgery control tool according to claim 10 , wherein said patient specific spinal correction rod includes one or more among following patient specific spinal corrections or modifications:
Cobb angle correction,
Kyphosis angle modification,
Lordosis angle modification,
Vertebral rotation correction.
12. Surgery control tool according to claim 1 , comprising plastic, or wherein the surgery control tool is a 3D printed plastic rod.
13. Surgery control tool according to claim 1 , comprising resin.
14. Surgery control tool according to claim 1 , comprising polyamide.
15. Surgery control tool according to claim 1 , wherein the surgery control tool is a single use tool and/or wherein said tool ( 1 ) is sterilized.
16. Surgery control tool according to claim 1 , wherein on the surgery control tool are printed one or more among following information:
a patient specific identification,
a patient specific clinical parameter,
a 3D orientation of said tool,
a rod identification.
17. Surgery control tool according to claim 1 , wherein said spinal correction rod has the precise shape and the precise size of a spinal correction rod implant ( 12 , 13 ) obtained from 3D spinal reconstruction got from two 2D X-ray patient images.
18. Surgery control tool according to claim 1 , wherein said tool ( 1 ) length ranges from 10 cm to 70 cm.
19. Surgery control tool according to claim 1 , wherein number of said spacers ( 8 , 38 ) ranges from 4 to 12.
20. Surgery control tool:
being no patient implant,
comprising:
an elongated body ( 7 , 37 ) having the shape and the size of a spinal correction rod,
end contact parts ( 9 , 39 ) being able to contact a patient implanted spinal correction rod implant ( 12 , 13 ),
spacers ( 8 , 38 ) extending from said elongated body ( 7 , 37 ) towards said end contact parts ( 9 , 39 );
wherein most of said spacers ( 8 , 38 ) extending from said elongated body ( 7 , 37 ), extend parallel to one another; and
wherein most of said spacers ( 8 , 38 ) extending from said elongated body ( 7 , 37 ), extend vertically when said surgery control tool end contact parts ( 9 , 39 ) contact said patient implanted spinal correction rod implant ( 12 , 13 ).
21. Surgery control tool, according to claim 20 , wherein most of said spacers ( 8 , 38 ) extending from said elongated body ( 7 , 37 ), have the same length.
22. Surgery control tool, according to claim 20 , wherein most of said spacers ( 8 , 38 ) disposed along said elongated body ( 7 , 37 ), are longitudinally immobile relative to said elongated body ( 7 , 37 ).
23. Surgery control tool:
being no patient implant,
comprising:
an elongated body ( 7 , 37 ) having the shape and the size of a spinal correction rod,
end contact parts ( 9 , 39 ) being able to contact a patient implanted spinal correction rod implant ( 12 , 13 ),
spacers ( 8 , 38 ) extending from said elongated body ( 7 , 37 ) towards said end contact parts ( 9 , 39 );
wherein only part of said end contact parts ( 9 , 39 ) include each a fastening part so as to be able to be removably fastened to said patient implanted spinal correction rod implant ( 12 , 13 ), and
wherein only two of said end contact parts ( 9 , 39 ), respectively located at opposite extremities of said elongated body ( 7 , 37 ), include each a fastening part so as to be able to be removably fastened to said patient implanted spinal correction rod implant ( 12 , 13 ).