IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0706244
(2000-11-03)
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발명자
/ 주소 |
- Sharkey, Hugh J.
- Saal, Joel
- Saal, Jeffrey
- Ashley, John
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출원인 / 주소 |
- Oratec Interventions, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
81 인용 특허 :
116 |
초록
▼
A percutaneous method of repairing a fissure in the annulus pulposus comprises placing an energy source adjacent to the fissure and providing sufficient energy to the fissure to raise the temperature to at least about 45-70° C. and for a sufficient time to cause the collagen to weld. An intervertebr
A percutaneous method of repairing a fissure in the annulus pulposus comprises placing an energy source adjacent to the fissure and providing sufficient energy to the fissure to raise the temperature to at least about 45-70° C. and for a sufficient time to cause the collagen to weld. An intervertebral fissure also can be treated by placing a catheter with a lumen adjacent to the fissure and injecting sealant into the fissure via the catheter, thereby sealing the fissure. An intervertebral fissure additionally can be treated by providing a catheter having a distal end, a proximal end, a longitudinal axis, and an intradiscal section at the catheter's distal end on which there is at least one functional element. The next step is applying a force longitudinally to the proximal of the catheter which is sufficient to advance the intradiscal section through the nucleus pulposus and around an inner wall of an annulus fibrosus, but which force is insufficient to puncture the annulus fibrosus. Next the functional element is positioned at a selected location of the disc by advancing or retracting the catheter and optionally twisting the proximal end of the catheter. Then the functional unit treats the annular fissure. Optionally, there is an additional step of adding a substance to seal the fissure. An externally guidable intervertebral disc apparatus also is disclosed.
대표청구항
▼
A percutaneous method of repairing a fissure in the annulus pulposus comprises placing an energy source adjacent to the fissure and providing sufficient energy to the fissure to raise the temperature to at least about 45-70° C. and for a sufficient time to cause the collagen to weld. An intervertebr
A percutaneous method of repairing a fissure in the annulus pulposus comprises placing an energy source adjacent to the fissure and providing sufficient energy to the fissure to raise the temperature to at least about 45-70° C. and for a sufficient time to cause the collagen to weld. An intervertebral fissure also can be treated by placing a catheter with a lumen adjacent to the fissure and injecting sealant into the fissure via the catheter, thereby sealing the fissure. An intervertebral fissure additionally can be treated by providing a catheter having a distal end, a proximal end, a longitudinal axis, and an intradiscal section at the catheter's distal end on which there is at least one functional element. The next step is applying a force longitudinally to the proximal of the catheter which is sufficient to advance the intradiscal section through the nucleus pulposus and around an inner wall of an annulus fibrosus, but which force is insufficient to puncture the annulus fibrosus. Next the functional element is positioned at a selected location of the disc by advancing or retracting the catheter and optionally twisting the proximal end of the catheter. Then the functional unit treats the annular fissure. Optionally, there is an additional step of adding a substance to seal the fissure. An externally guidable intervertebral disc apparatus also is disclosed. he first and second distances being substantially equal. 4. The retrieval device of claim 1, wherein the loop that may be formed has an open position that is substantially circular in shape. 5. The retrieval device of claim 1, wherein the lumen system comprises a single lumen. 6. The retrieval device of claim 1, wherein the first catheter is tapered. 7. The retrieval device of claim 1, wherein the lumen system comprises a first lumen and a second lumen, and wherein the first lumen is configured to accept at least (a) a guidewire such that the guidewire may extend beyond either end of the first catheter, and (b) a wire suited to forming the loop. 8. The retrieval device of claim 1, wherein the first catheter comprises at least two segments connected together. 9. The retrieval device of claim 1, further comprising a handle connected to the wire, and wherein the handle may be manipulated to cause the portion of the wire to pass through the opening system and form the loop capable of grasping foreign bodies within the patient. 10. The retrieval device of claim 1, further comprising a reinforcing loop material connected to the wire such that when the proximal end of the wire is manipulated to form the loop, at least a portion of the loop is adjacent to the reinforcing loop material. 11. The retrieval device of claim 10, wherein the reinforcing loop material comprises stainless steel. 12. The retrieval device of claim 10, wherein the reinforcing loop material comprises nitinol. 13. The retrieval device of claim 10, wherein the reinforcing loop material comprises tungsten or platinum. 14. The retrieval device of claim 1, wherein the reinforcing loop material comprises PTFE. 15. The retrieval device of claim 1, further comprising a reinforcing pusher material connected to the wire proximate the proximal end of the wire. 16. The retrieval device of claim 15, wherein the reinforcing pusher material comprises nitinol. 17. The retrieval device of claim 15, wherein the reinforcing pusher material comprises stainless steel. 18. The retrieval device of claim 15, wherein the reinforcing pusher material is a second catheter, and wherein the second catheter may be manipulated to cause the portion of the wire to pass through the opening system and form the loop capable of grasping foreign bodies within the patient. 19. The retrieval device of claim 18, further comprising a first hemostasis valve connected to the distal end of the first catheter, and a second hemostasis valve connected to the distal end of the second catheter. 20. The retrieval device of claim 1, further comprising a side-arm adapter connected to the distal end of the first catheter. 21. The retrieval device of claim 20, further comprising a locking device connected to the side-arm adapter. 22. The retrieval device of claim 21, further comprising a hemostasis valve connected to the locking device. 23. A retrieval device comprising: a first catheter having a distal end, a proximal end, a lumen system configured to accept at least one wire such that the at least one wire may extend beyond either end of the first catheter, and an opening system through which a loop may be formed; a first wire configured to be placed within the lumen system and extend beyond either end of the first catheter; and a second wire having a distal end and a proximal end, the distal end of the second wire being attached to the first catheter; wherein the proximal end of the second wire may be manipulated to cause a portion of the second wire to pass through the opening system and form a loop capable of grasping foreign bodies within a patient. 24. The retrieval device of claim 23, wherein the opening system comprises two openings oriented substantially equidistant from the distal end of the first catheter. 25. The retrieval device of claim 23, wherein the loop that may be formed has an open position that is substantially circular in shape. 26. The retrieval device of claim 23, wherein the lumen syst
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