초록 ▼

A percutaneous tissue removal apparatus having a flexible drill shaft, a cutting tip mounted on the shaft a power source for transmitting motion to the shaft to move the cutting tip against tissue and a suction source for removing tissue fragments along the shaft to a location outside the tissue mas

A percutaneous tissue removal apparatus having a flexible drill shaft, a cutting tip mounted on the shaft a power source for transmitting motion to the shaft to move the cutting tip against tissue and a suction source for removing tissue fragments along the shaft to a location outside the tissue mass while cutting. The apparatus may include a container for collecting one or more selected components of the harvested tissue fragments for implantation of the fragments preferably into the body of the patient from whom they were removed. Where the tissue to be cut is bone, a cutting tip is preferably made of a polymeric material which is softer than the cortical portion of the bone, although the cutting tip may be made of a ceramic or a composite material. A second flexible shaft may be provided either within or about the flexible drill shaft.

대표청구항 ▼

1. A method of forming and utilizing tissue comprising: harvesting tissue elements from a donor; combining the harvested tissue elements with a substance to form a grafting material; placing the grafting material in a retainer material; and implanting the retainer material and grafting materia

1. A method of forming and utilizing tissue comprising: harvesting tissue elements from a donor; combining the harvested tissue elements with a substance to form a grafting material; placing the grafting material in a retainer material; and implanting the retainer material and grafting material in a recipient. 2. The method of claim 1 wherein the substance is selected from the group consisting of tissue grafts, collagen, antibiotics, and bone growth promoting substances. 3. The method of claim 1 wherein the substance is collagen. 4. The method of claim 1 wherein the harvested tissue elements include bone tissue elements. 5. The method of claim 1 wherein the harvested tissue elements include tissue elements selected from the group consisting of bone, cartilage, muscle, and fetal tissue. 6. The method of claim 1 wherein the donor and recipient are the same individual. 7. The method of claim 1 wherein the donor and recipient are different individuals. 8. The method of claim 1 further comprising the step of inserting at least a portion of a sleeve into the donor and wherein at least the step of harvesting is performed through the sleeve. 9. The method of claim 8 further comprising the step of guiding the sleeve with a guide wire. 10. The method of claim 8 wherein the sleeve is inserted percutaneously through skin. 11. The method of claim 8 wherein at least one of the steps of harvesting, inserting and implanting is performed under x-ray guidance. 12. The method of claim 8 wherein at least one of the steps of harvesting, inserting and implanting is performed under endoscopic, arthroscopic, or fiber optic guidance. 13. The method of claim 1 wherein an adhesive element is added to the tissue fragments. 14. The method of claim 13 wherein the adhesive element is blood or fibrin. 15. A method of forming and utilizing tissue comprising: harvesting tissue elements from a donor; combining the harvested tissue elements with collagen to form a grafting material; placing the grafting material in a retainer; and implanting the retainer and grafting material in a recipient. 16. The method of claim 15 wherein the retainer is made of a biodegradable material. 17. The method of claim 15 wherein the retainer is made of a polymer. 18. The method of claim 15 wherein the combining and implanting steps are performed in the same room. 19. The method of claim 15 wherein the harvested tissue elements include bone tissue elements. 20. The method of claim 19 wherein the bone tissue elements are cancellous bone tissue elements and are substantially free of cortical bone tissue elements. 21. The method of claim 19 wherein the donor and recipient are the same individual. 22. The method of claim 19 wherein the donor and recipient are different individuals. 23. The method of claim 19 wherein an adhesive element is added to the tissue fragments. 24. The method of claim 23 wherein the adhesive element is blood or fibrin. 25. The method of claim 19 further comprising the step of inserting at least a portion of a sleeve into the donor and wherein at least the step of harvesting is performed through the sleeve. 26. The method of claim 25 further comprising the step of guiding the sleeve with a guide wire. 27. The method of claim 26 wherein the sleeve is inserted percutaneously through skin. 28. The method of claim 25 wherein at least one of the steps of harvesting, inserting and implanting is performed under x-ray guidance. 29.The method of claim 25 wherein at least one of the steps of harvesting, inserting and implanting is performed under endoscopic, arthroscopic, or fiber optic guidance. 30. The method of claim 19 further comprising the step of inserting at least a portion of a cannula into the donor and wherein at least the step of implanting the retainer and grafting material is performed through the cannula.