Claims
- 1. A method for preventing neurologic damage, comprising the steps of:
providing first and second elongate tubular members, each member having a lumen communicating with a port at a distal end; inserting the first tubular member between lumbar vertebrae into the subarachnoid space; inserting the second tubular member between lumbar vertebrae into the subarachnoid space, and advancing the distal port cephalad and locating the port in the cervical or thoracic region of the spine; aspirating or draining cerebral spinal fluid (CSF) from the spinal column through one of the first tubular member or second tubular member; cooling the CSF by extracorporeal refrigeration; and perfusing the CSF into the spinal column through the other of the first tubular member or second tubular member, wherein the spinal cord is cooled to below normal body temperature, and wherein CSF pressure is reduced to and maintained at a level substantially below normal CSF pressure.
- 2. The method of claim 1, wherein the first and second tubular members are inserted over a needle.
- 3. The method of claim 1, further comprising the step of measuring CSF pressure using a manometer.
- 4. The method of claim 1, wherein the method cools the spinal cord to prevent neurologic damage during inadequate spinal perfusion.
- 5. The method of claim 1, further comprising the step of releasing CSF to reduce the pressure in the subarachnoid space.
- 6. The method of claim 1, further comprising the step of performing aortic surgery.
- 7. The method of claim 6, wherein the surgery is any one of thoracic and abdominal aortic aneurysm repair.
- 8. The method of claim 1, further comprising the step of mixing CSF with Ringer's lactate solution.
- 9. The method of claim 1, further comprising the step of adjusting the CSF flow rate.
- 10. The method of claim 1, further comprising the step of measuring CSF temperature.
- 11. The method of claim 1, further comprising the step of infusing fluid or neuroprotective agent into the subarachnoid space.
- 12. A method for preventing neurologic damage, comprising the steps of:
providing first and second elongate tubular members, each member having a lumen communicating with a port at a distal end; inserting the first tubular member between lumbar vertebrae into the subarachnoid space; inserting the second tubular member between low cervical vertebrae into the subarachnoid space, and advancing the distal port cephalad or caudal and locating the port in the cervical, thoracic, or lumbar region of the spine; aspirating cerebral spinal fluid (CSF) from the spinal column through one of the first tubular member or second tubular member; cooling the CSF by extracorporeal refrigeration; and perfusing the CSF into the spinal column through the other of the first tubular member or second tubular member, wherein the spinal cord is cooled to below normal body temperature and wherein CSF pressure is reduced to and maintained at a level substantially below normal CSF pressure.
- 13. The method of claim 12, wherein the first and second tubular members are inserted over a needle.
- 14. The method of claim 12, further comprising the step of measuring CSF pressure using a manometer.
- 15. The method of claim 12, further comprising the step of releasing CSF to reduce the pressure in the subarachnoid space.
- 16. The method of claim 12, further comprising the step of performing aortic surgery.
- 17. The method of claim 16, wherein the surgery is any one of thoracic and abdominal aortic aneurysm repair.
- 18. The method of claim 12, further comprising the step of infusing fluid into the subarachnoid space, and wherein the CSF is mixed with the fluid.
- 19. The method of claim 18, wherein the fluid is Ringer's lactate or saline solution.
- 20. The method of claim 12, further comprising the step of adjusting the CSF flow rate.
- 21. The method of claim 12, wherein the second tubular member is inserted between vertebrae C6 and C7.
- 22. The method of claim 12, wherein the second tubular member is inserted between vertebrae C7 and T1.
- 23. The method of claim 1, wherein the method cools the spinal cord to prevent neurologic damage during inadequate spinal perfusion.
Parent Case Info
[0001] This is a continuation of U.S. application Ser. No. 09/287,969, filed Apr. 7, 1999, which is a continuation-in-part of U.S. application Ser. No. 09/260,370, filed Mar. 1, 1999, now abandoned, the contents of each are expressly incorporated herein by reference in their entirety.
Continuations (1)
|
Number |
Date |
Country |
Parent |
09287969 |
Apr 1999 |
US |
Child |
09823168 |
Mar 2001 |
US |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09260370 |
Mar 1999 |
US |
Child |
09287969 |
Apr 1999 |
US |