System for use in treatment of vertebral fractures
Methods and devices that displace bone or other hard tissue to create a cavity in the tissue. Where such methods and devices rely on a driving mechanism for providing moving of the device to form a profile that improves displacement of the tissue. These methods and devices also allow for creating a path or cavity in bone for insertion of bone cement or other filler to treat a fracture or other condition in the bone. The features relating to the methods and devices described herein can be applied in any region of bone or hard tissue where the tissue or bone is displaced to define a bore or cavity instead of being extracted from the body such as during a drilling or ablation procedure.
1. A method of applying targeted energy within a vertebral bone tissue, the method comprising:
inserting an osteotome into the bone tissue, the osteotome comprising a first electrode along an anterior surface and an insulator along a posterior surface;
articulating a distal portion of the osteotome in a posterior direction;
extending an extendable member comprising a second electrode along an anterior surface and an insulator along a posterior surface;
applying energy to the second electrode;
dispersing the energy into the bone tissue; and
directing the energy anteriorly from the second electrode to the vertebral bone tissue.
2. The method of applying targeted energy within a vertebral bone tissue of claim 1 , further comprising directing the energy away from the spinal canal.
3. The method of applying targeted energy within a vertebral bone tissue of claim 1 , wherein the energy applied to the second electrode is a radio frequency energy.
4. The method of applying targeted energy within a vertebral bone tissue of claim 1 , further comprising monitoring a temperature of the bone tissue.
5. The method of applying targeted energy within a vertebral bone tissue of claim 1 , further comprising forming a cavity in the bone tissue.
6. The method of applying targeted energy within a vertebral bone tissue of claim 1 , further comprising inserting an introducer into the vertebral bone tissue.
7. The method of applying targeted energy within a vertebral bone tissue of claim 6 , further comprising:
removing the osteotome from the bone tissue through the introducer; and
injecting a filler material into the cavity.
8. The method of applying targeted energy within a vertebral bone tissue of claim 7 , wherein the filler material is bone cement and/or bone filler.
9. The method of applying targeted energy within a vertebral bone tissue of claim 1 , wherein articulating the osteotome comprises applying impact forces on a portion of the osteotome.
10. The method of applying targeted energy within a vertebral bone tissue of claim 1 , wherein articulating the osteotome comprises applying a rotational force to a portion of osteotome to shorten a side of the osteotome.
11. The method of applying targeted energy within a vertebral bone tissue of claim 1 , wherein the energy causes coagulative necrosis of the bone tissue.
12. A method of applying targeted energy within a hard tissue, the method comprising:
inserting an apparatus through an introducer into the hard tissue, the apparatus comprising an electrode disposed along one side and an insulator along an opposite side;
causing a distal portion of the apparatus to move from a linear configuration to a curved configuration;
extending an apparatus extension from the apparatus into the hard tissue, wherein the apparatus extension comprises an electrode strip disposed along one side and an insulator disposed along an opposite side;
applying energy to the apparatus;
dispersing the energy from the apparatus into the hard tissue; and
directing the energy toward the hard tissue on one side of the distal portion.
13. The method of applying targeted energy within the hard tissue of claim 12 , wherein the energy applied to the apparatus is a radio frequency energy.
14. The method of applying targeted energy within the hard tissue of claim 12 , further comprising monitoring a temperature of the hard tissue.
15. The method of applying targeted energy within the hard tissue of claim 12 , further comprising forming a cavity in the hard tissue.
16. The method of applying targeted energy within the hard tissue of claim 12 , further comprising inserting an introducer into the hard tissue.
17. The method of applying targeted energy within the hard tissue of claim 16 , further comprising:
removing the apparatus from the hard tissue through the introducer; and
injecting filler material into the cavity.
18. The method of applying targeted energy within the hard tissue of claim 17 , wherein the filler material is tissue cement and/or tissue filler.
19. The method of applying targeted energy within the hard tissue of claim 12 , wherein the distal portion of the apparatus is advanced into the hard tissue from impact forces on a proximal portion of the apparatus.
20. The method of applying targeted energy within the hard tissue of claim 12 , wherein the distal portion of the apparatus is articulated by rotation of a portion of the apparatus to shorten a side of the distal portion.
21. The method of applying targeted energy within the hard tissue of claim 12 , wherein the energy causes coagulative necrosis of the hard tissue.