Devices, methods, systems, and kits for the surgical treatment of cervical disc disease
Described herein are devices, methods, systems, and kits configured for use in the surgical treatment of cervical disc disease. Surgery for cervical disc disease may comprise vertebral fixation with screws and plates as well as insertion of one or more intervertebral implants. In some embodiments, a cervical implant may be connected as one single unit with a cervical plate. In some embodiments, a cervical implant and a cervical plate may be separate elements that are configured to be inserted independently into a subject during cervical spinal surgery. In some embodiments, a cervical implant and a cervical plate are designed to be coupled together.
1. A system for use in surgical treatment of cervical disc disease comprising:
a) a cervical implant comprising a cervical implant coupler, wherein said cervical implant is configured to be positioned between a first and a second cervical vertebra;
b) a cervical plate having an anterior surface that faces away from the cervical implant when coupled to the cervical implant and a posterior surface that faces towards the cervical implant when coupled to the cervical implant, the cervical plate configured to couple with the cervical implant coupler in a snap-fit fashion, the cervical plate comprising:
i. one or more surgical screw holes, wherein each of the one or more surgical screw holes are configured to receive a screw; and
ii. a first recess having a first edge and a second edge, the second edge positioned opposite the first edge; and
iii. a second recess having a third edge and a fourth edge, the fourth edge positioned opposite the third edge;
c) a blocking cap configured to couple with the first recess and the second recess in a snap-fit fashion, the blocking cap comprising:
i. a first prong comprising a first prong head configured to snap-fit with the first recess; and
ii. a second prong comprising a second prong head configured to snap-fit with the second recess;
wherein when the first prong snap-fits with the first recess and the second prong snap-fits with the second recess, (a) the first and the second edges are each positioned on opposite sides of and adjacent to the first prong, (b) the third and the fourth edges are each positioned on opposite sides of and adjacent to the second prong, and (c) the first and the second prong heads each engage with the posterior surface of the cervical plate so that the blocking cap is secured in place relative to the cervical plate.
2. The system of claim 1 , wherein the one or more screw holes comprise one or more angled interior edges that are configured to seat a received screw at an angle that is not perpendicular to the cervical plate when the cervical plate is coupled with the cervical implant.
3. The system of claim 1 , wherein the cervical plate comprises two prongs, wherein the widest distance between the two prongs comprises a first width when the prongs are not compressed, and wherein the widest distance between the two prongs comprises a second width when the two prongs are compressed, wherein the second width is smaller than the first width, and wherein the second width is smaller than at least one width of an opening in the cervical implant coupler.
4. The system of claim 1 , wherein the blocking cap is configured to prevent the backing out of one or more screws when coupled with a cervical plate.
5. The system of claim 1 , wherein the cervical plate further comprises a recessed surface configured to receive the blocking cap and seat the blocking cap at least partially directly over one or more screws seated within the one or more holes in the cervical plate.
6. The system of claim 1 , wherein the cervical plate comprises one or more materials selected from the group consisting of polyether ether ketone (PEEK), carbon fiber-reinforced polymer, carbon fiber-reinforced plastic, carbon fiber-reinforced thermoplastic, glass fiber-reinforced polymer, glass fiber-reinforced plastic and polyaryletherketone.