초록 ▼

A bone instrumentation cover or shield has a hollow cap or casing for encapsulating projecting parts of instrumentation installed in a bone, and a fastener portion for securing it to the bone or to parts of the instrumentation. The instrumentation shield or cover is made of medically safe material,

A bone instrumentation cover or shield has a hollow cap or casing for encapsulating projecting parts of instrumentation installed in a bone, and a fastener portion for securing it to the bone or to parts of the instrumentation. The instrumentation shield or cover is made of medically safe material, in various sizes, and may be a rigid casing or pliable, stretchable, or adaptable with slidable, displaceable or pleated panels to provide a medically safe physical barrier between projecting parts of bone instrumentation constructs and surrounding bone and soft tissues, in order to minimize local irritation or injury and to provide a barrier to ingrowth from bone and/or fibrous tissues. The cap or casing is readily applied over the instrumentation, then cinched, tied or fastened to the instrumentation or adjacent areas.

대표청구항 ▼

1. A bone instrumentation cover installed over bone instrumentation adapted to project from the bone of an animal during bone repair or reconstruction surgical procedure on the animal, the bone instrumentation cover comprising: a hollow cap sized for encapsulating a part of a bone instrumentation wh

1. A bone instrumentation cover installed over bone instrumentation adapted to project from the bone of an animal during bone repair or reconstruction surgical procedure on the animal, the bone instrumentation cover comprising: a hollow cap sized for encapsulating a part of a bone instrumentation which has been installed in bone, the hollow cap adapted for placement in the body of the animal and for encapsulating a part of the bone instrumentation which projects from the bone, the hollow cap providing a medically safe physical barrier between the part of the bone instrumentation and the surrounding bone and soft tissue in the animal, the hollow cap being adapted to separate the part of the bone instrumentation from substantially all of the surrounding soft tissue so that the hollow cap prevents ingrowth of substantially all of the surrounding soft tissue through the cap into the bone instrumentation which projects from the bone, andthe hollow cap having a fastener portion securing the cap to the bone instrumentation portion which projects from the bone. 2. A bone instrumentation cover or shield according to claim 1, wherein the fastener portion includes: a cinch ring which is not a part of said hollow cap, and said cinch ring having one or more draw strings for tightening the hollow cap circumferentially around the instrumentation during said bone repair or reconstruction surgical procedure, anda suture string for securing the hollow cap to one of adjacent bone and adjacent tissue. 3. A bone instrumentation cover according to claim 2, further including a plurality of first suture strings, each first suture string having a first end and a second end, the first ends of the first suture strings being fixedly connected to the hollow cap, and the second ends of the first suture strings are threaded through the cinch ring for tightening the hollow cap to the cinch ring with the hollow cap extending over the bone instrumentation installed during the bone repair or reconstruction surgical procedure. 4. A bone instrumentation cover according to claim 3, further including a second suture string with a first end of the second suture string coupled to an edge of the cap and with a second end of the second suture string coupled to the cinch ring. 5. A bone instrumentation cover according to claim 4, further including an additional second suture string with a first end of the additional second suture string coupled to an edge of the cap and with a second end of the additional second suture string attached to the cinch ring. 6. A bone instrumentation cover according to claim 1, wherein the hollow cap is adjustable in size and is adapted for removal in a subsequent surgical procedure. 7. A bone instrumentation cover according to claim 1, wherein the hollow cap is adapted to encapsulate substantially all of the bone instrumentation adapted to project from the bone after an initial surgical procedure and is removable in a subsequent surgical procedure. 8. A bone instrumentation cover according to claim 1, wherein the hollow cap includes pleats adapted for adjustment of one of the length, width and height of the hollow cap so that the hollow cap fits snugly around the bone instrumentation. 9. A bone instrumentation cover according to claim 1, wherein the fastener portion includes a lower frame of the hollow cap provided with an open, box-like aperture shaped for locking the cap to the bone instrumentation. 10. A bone instrumentation cover according to claim 1, wherein the hollow cap is made of a medically safe material consisting of polyurethane. 11. The combination of claim 1, wherein the hollow cap comprises hydrogel. 12. The bone instrumentation cover of claim 1, wherein the fastener portion comprises biodegradable sutures. 13. A bone instrumentation cover installed over bone instrumentation adapted to project from the bone of an animal during bone repair or reconstruction surgical procedure, the bone instrumentation cover comprising: a hollow cap shaped to encapsulate a part of a pedicle screw capable of being installed in bone in the body of a human, the hollow cap being shaped to encapsulate a part of the pedicle screw which projects from the bone and is in the body of the human, the hollow cap being adapted for placement in the body of the human during surgery, the hollow cap being adapted to separate the part of the pedicle screw capable of projecting from the bone in the body of the human from surrounding bone and soft tissue, the hollow cap separating the part of the pedicle screw from substantially all of the surrounding soft tissue so that during healing the hollow cap prevents ingrowth of bone or tissue through the cap into the part of the pedicle screw which projects from the bone, anda fastener snugly securing the cap to the pedicle screw. 14. A bone instrumentation cover according to claim 13, further including sutures that are absorbable in vivo and secure the hollow cap to one of adjacent bone and adjacent tissue. 15. A bone instrumentation cover according to claim 14, wherein the sutures include a plurality of adjustable suture strings, each adjustable suture string having a first end and a second end, the first ends of the adjustable suture strings being fixedly connected to the hollow cap, and the second ends of the adjustable suture strings are a cinch ring tightening the hollow cap to the cinch ring with the hollow cap extending over the pedicle screw installed during the bone repair or reconstruction surgical procedure. 16. A bone instrumentation cover according to claim 15, further including a non-adjustable suture string with a first end of the non-adjustable suture string tied to a lower edge of the cap and with a second end of the non-adjustable suture string attached to the cinch ring. 17. A bone instrumentation cover according to claim 15, wherein the cinch ring has openings therein, said cinch ring not being a part of said hollow cap, and said cinch ring being a tubular form. 18. A bone instrumentation cover according to claim 13, wherein the hollow cap is made of a medically safe material consisting of polyurethane. 19. The combination of a bone implant and a barrier comprising: a bone implant capable of extending from the bone of an animal, anda barrier material adapted for snugly covering only the portion of the bone implant in the animal which projects from the bone and separating the bone implant from substantially all of the surrounding soft tissue, wherein the barrier material is a medically safe physical barrier between the portion of the part of the bone implant that is covered and the surrounding soft tissue of the animal and wherein the barrier material prevents ingrowth during healing of substantially all of the surrounding tissue into the bone implant, andmeans for fastening the barrier material to the bone implant. 20. The combination of claim 19, wherein the bone implant is a pedicle screw. 21. The combination of claim 19, wherein the barrier material is designed to be adjusted around the portion of the bone implant which projects from the bone so that it snugly covers the portion of the bone implant which projects from the bone. 22. The combination of claim 19, wherein the barrier material is hydrogel.