Techniques for joint fusion are described, including a drill guide assembly having a drill guide and a pin sleeve, the drill guide including a drill guide head having an opening, a shaft configured to receive the pin sleeve, a drill guide tip configured to engage a bone, and a cannula configured to
Techniques for joint fusion are described, including a drill guide assembly having a drill guide and a pin sleeve, the drill guide including a drill guide head having an opening, a shaft configured to receive the pin sleeve, a drill guide tip configured to engage a bone, and a cannula configured to receive an implant, a first guide pin configured to guide placement of the drill guide, a striker tube configured to fit over at least a portion of the pin sleeve, a cannulated drill bit configured to drill a pilot hole in a bone tissue, a stop collar configured to be placed over the cannulated drill bit and to be attached to the cannulated drill bit using a ridge, and a parallel spacer instrument configured to guide placement of a second guide pin at a distance from the implant after the implant is implanted into the bone tissue.
대표청구항▼
1. A system, comprising: a drill guide assembly comprising a drill guide and a pin sleeve, the drill guide comprising a drill guide head having an opening, a shaft configured to receive the pin sleeve, a drill guide tip configured to engage a bone, and a cannula configured to receive an implant conf
1. A system, comprising: a drill guide assembly comprising a drill guide and a pin sleeve, the drill guide comprising a drill guide head having an opening, a shaft configured to receive the pin sleeve, a drill guide tip configured to engage a bone, and a cannula configured to receive an implant configured to form a conduit in a sacroiliac joint with an ilium or a sacral bone to at least partially fuse the sacroiliac joint, the conduit being adapted to receive a material that comprises a demineralized bone matrix, the pin sleeve comprising a pin sleeve head;a first guide pin configured to guide placement of the drill guide;a striker tube configured to be removeably placed over at least a portion of the pin sleeve covering the pin sleeve head, the striker tube including a distal edge having a first segment configured to partially encircle a rounded side of the drill guide head and a second segment configured to rest against a proximal side of the drill guide head, the first segment being disposed on a different plane than the second segment;a cannulated drill bit having a plurality of adjustment ridges and configured to drill a pilot hole in a bone tissue, the pilot hole configured to receive the implant;a stop collar having a stop collar ridge and configured to be placed over the cannulated drill bit, wherein the plurality of adjustment ridges are configured to engage with the stop collar ridge and to determine a placement of the stop collar, and the cannulated drill bit is configured to drill the pilot hole having a depth based on the placement of the stop collar; anda parallel spacer instrument configured to guide placement of a second guide pin at a distance from the implant after the implant is implanted into the bone tissue, the parallel spacer instrument comprising a sliding block coupled to a parallel spacer block, the parallel spacer block comprising a drill guide tube having an inner diameter configured to fit around the first guide pin, the drill guide tube having an outer diameter configured to fit within the cannula of the drill guide while the drill guide tube is disposed around the first guide pin. 2. The system of claim 1, wherein the sliding block is coupled to the parallel spacer block using a locking nut. 3. The system of claim 1, wherein the sliding block is configured to move along an opening in the parallel spacer block. 4. The system of claim 1, wherein the parallel spacer instrument further comprises a guide pin tube configured to receive the second guide pin. 5. The system of claim 1, wherein the parallel spacer instrument further comprises one or more spacer markings, at least one of the one or more spacer markings indicating the distance between the implant and the second guide pin. 6. The system of claim 5, wherein a leading edge of the sliding block is configured to be aligned with the at least one of the one or more spacer markings to set the sliding block to guide placement of the second guide pin at the distance. 7. The system of claim 1, further comprising a packing plunger assembly comprising a packing tube and a plunger partially inserted into the packing tube, the packing plunger assembly configured to pack the implant with a material. 8. The system of claim 1, further comprising a driver configured to drive the implant into the bone tissue. 9. The system of claim 1, wherein the cannulated drill bit comprises one or more depth markings. 10. The system of claim 1, wherein the pin sleeve comprises a hollow shaft configured to receive the first guide pin. 11. The system of claim 1, wherein the pin sleeve comprises an outer diameter configured to fit inside the cannula of the drill guide. 12. The system of claim 1, wherein the drill guide head comprises an internal thread configured to receive a complementary thread on the pin sleeve such that the drill guide and the pin sleeve may be screwed together using the internal thread and the complementary thread. 13. The system of claim 1, wherein the implant comprises a screw configured to be implanted into the bone tissue. 14. The system of claim 13, wherein the screw further is configured to deliver a material to the bone tissue using one or more slots along a wall of the screw. 15. The system of claim 14, wherein the material comprises an osteogenic compound. 16. The system of claim 14, wherein the material comprises an osteoconductive material. 17. The system of claim 1, further comprising a pin sleeve tip configured to form a trocar.
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