Surgical plating systems, devices, and related methods

Patent metadata

Field	Value
Publication number	US-11389209-B2
Application number	US-201916517439-A
Country	US
Kind code	B2
Filing date	Jul 19, 2019
Priority date	Jul 19, 2019
Publication date	Jul 19, 2022
Grant date	Jul 19, 2022

Abstract

Surgical plating systems, devices, and related methods for stabilizing and immobilizing portions of a body for surgical procedures, e.g., spinal surgery, are disclosed herein. The plating systems can have narrow profiles that minimize trauma to the patient. An exemplary bone plating system can include a bone plate having one or more holes for receiving attachment members to couple the bone plate to a bony structure. The plating system can provide multipoint fixation to anatomical structures of the patient to prevent unwanted migration of the bone plate and/or unintentional back-out of the attachment members. In some embodiments, the attachment members can be disposed at various trajectories and angles relative to plating structures and can include a mesh construct and/or additional locking features. In some embodiments, the plating system can be introduced into the patient via an access tube to further limit the invasiveness of the procedure.

First claim

The invention claimed is:

1. A vertebral plating system, comprising:
a plate having an upper surface, a lower surface, and a plurality of holes that extend from the upper surface to the lower surface, the plate being configured to extend along at least one lateral mass of each of adjacent vertebral levels such that two or more of the plurality of holes define a plurality of fixation points at each lateral mass of the adjacent vertebral levels; and
a plurality of attachment members configured to be inserted through the plurality of holes in the plate and into the lateral masses of each of the vertebral levels to fix the plate to the vertebral levels,
wherein the plurality of holes are arranged in two longitudinal rows such that the holes of a first longitudinal row of holes are offset with respect to a second longitudinal row of holes, with the first longitudinal row having a first central axis and the second longitudinal row having a second central axis,
wherein a central longitudinal axis of the plate passes through at least a portion of each of the plurality of holes,
wherein the upper surface includes one or more spaces formed between a hole from the first longitudinal row of holes and an adjacent hole from the second longitudinal row of holes, the one or more spaces being defined by a portion of the upper surface and lying in a common plane with a plane of the upper surface, the one or more spaces extending between an outermost point of each of the holes across the central longitudinal axis of the plate,
wherein one or more of the holes is threaded such that the threads of at least one of the holes are positioned adjacent to the one or more spaces to increase the strength of the plate, the one or more spaces separating the threads of the hole from the first longitudinal row of holes and the threads of the hole from the second longitudinal row of holes, with the threads of the holes of the first longitudinal row of holes and the threads of the holes of the second longitudinal row of holes being adjacent to the one or more spaces throughout a length of the plate, and
wherein the plate is formed of a plurality of segments, each segment including an equal number of holes from each of the longitudinal rows of holes.

2. The system of claim 1 , wherein the attachment members include a variable angle locking feature.

3. The system of claim 2 , wherein the variable angle locking feature ranges from a 5 degree cone of angulation to a 20 degree cone of angulation.

4. The system of claim 1 , wherein the attachment members are configured to engage the plate at a selected angle relative to a central axis of each of the plurality of holes.

5. The system of claim 1 , wherein the attachment members include bilaterally angled screws.

6. The system of claim 1 , wherein the holes include a plurality of threaded columns separated by non-threaded recesses.

7. The system of claim 1 , wherein the attachment members comprise any one of a trauma screw, an arch screw, or a spine screw.

8. The system of claim 1 , wherein the holes are perpendicular to the central longitudinal axis of the plate.

9. The system of claim 1 , wherein the holes are angled at an angle of approximately 10 to 30 degrees of lateral outward angulation with respect to the plate.

10. The system of claim 6 , wherein the plate includes a contoured surface, the contoured surface forming a node around each hole of the plurality of holes.

11. The system of claim 1 , wherein an angle between adjacent holes in each segment ranges from about 30 degrees to about 60 degrees relative to the central longitudinal axis of the plate.

12. The system of claim 3 , wherein a distance between recesses formed on opposite sides of the plate ranges from about 5 millimeters to about 6 millimeters and a distance between nodes on opposite sides of the plate ranges from about 8 millimeters to about 10 millimeters.

13. The system of claim 1 , wherein a distance measured between centers of a pair of laterally adjacent holes of the plurality of holes ranges from about 2 millimeters to about 5 millimeters.

14. The system of claim 1 , wherein one or more of the holes of the first longitudinal row and the holes of the second longitudinal row are angled in at least one of a direction that is parallel to the central longitudinal axis of the plate and in a direction that is perpendicular to the central longitudinal axis of the plate.

15. The system of claim 1 , further comprising an inserter tool configured to implant the plate in the lateral mass.

16. The system of claim 1 , further comprising an access tube defining a channel therein, the access tube being configured to receive the plate and the attachment members therethrough.

17. The system of claim 16 , wherein the access tube comprises a cut-out formed on a distal end of the access tube.

18. The system of claim 1 , further comprising a mesh material extending from one of the upper surface and the lower surface.

19. The system of claim 18 , wherein the mesh material defines rhombal-shaped openings therein.

20. The system of claim 18 , wherein the mesh material forms a base of one or more of the holes of the first longitudinal row and the holes of the second longitudinal row.

21. The system of claim 10 , wherein a radius of curvature of the node ranges from about 2.5 millimeters to about 3.5 millimeters, and a radius of curvature of the recesses ranges from about 1 millimeters to about 1.5 millimeters.

22. The system of claim 1 , wherein the threads of at least one of the holes in the first longitudinal row of holes intersects a line that extends between an axis of the at least one hole and an axis of the adjacent hole from the second longitudinal row of holes.

23. A vertebral plating system, comprising:
a plate having an upper surface, a lower surface, and a plurality of holes that extend from the upper surface to the lower surface, the plate being configured to extend along at least one lateral mass of each of adjacent vertebral levels such that two or more of the plurality of holes define a plurality of fixation points at each lateral mass of the adjacent vertebral levels; and
a plurality of attachment members configured to be inserted through the plurality of holes in the plate and into the lateral masses of each of the vertebral levels to fix the plate to the vertebral levels,
wherein the plurality of holes are arranged in two longitudinal rows such that the holes of a first longitudinal row of holes are offset with respect to a second longitudinal row of holes, with the first longitudinal row having a first central axis and the second longitudinal row having a second central axis, and a number of holes in the first longitudinal row is equal to a number of holes of the second longitudinal row,
wherein a central longitudinal axis of the plate passes through at least a portion of each of the plurality of holes,
wherein the upper surface includes one or more spaces formed between a hole from the first longitudinal row of holes and an adjacent hole from the second longitudinal row of holes, the one or more spaces being defined by a portion of the upper surface and lying in a common plane with a plane of the upper surface, the one or more spaces extending between an outermost point of each of the holes across the central longitudinal axis of the plate,
wherein one or more of the holes is threaded such that the threads of at least one of the holes are positioned adjacent to the one or more sp

Assignees

• Medos Int Sarl

Inventors

• Montello Albert
• Miller William
• Rodriguez Joshua
• Lee Kevin
• Zollmann Veronique Christine
• Wilson Laura
• Berger Roger
• Bae Hyun
• Jeger Michael

Classifications

• A61B17/7059 Primary

  Cortical plates (A61B17/7007, A61B17/7058 take precedence) · CPC title

• A61B17/3421

  Cannulas · CPC title

• A61B17/8028

  Cushions, i.e. elements forming interface between bone plate and bone · CPC title

• A61B17/8085

  with pliable or malleable elements or having a mesh-like structure, e.g. small strips (A61B17/8071, A61B17/8076 take precedence) · CPC title

• A61B90/50

  Supports for surgical instruments, e.g. articulated arms · CPC title