Claims
- 1. A method for treating a carotid or cerebral artery, comprising the steps of:
inserting a distal end of a catheter into the carotid or cerebral artery, the catheter having a proximal end, a distal end, an expandable occluder mounted on the distal end, an aspiration port distal the occluder, and an aspiration lumen communicating with the port; expanding the occluder to occlude the carotid or cerebral artery; applying a negative pressure to the aspiration port; and removing an occlusion from the carotid or cerebral artery.
- 2. The method of claim 1, further comprising the step of perfusing oxygenated medium into the artery through a perfusion port proximal the occluder.
- 3. The method of claim 1, wherein the occlusion is a thromboembolic material, and wherein the thromboembolic material is engaged by the aspiration port.
- 4. The method of claim 1, wherein the catheter further comprises at least one perfusion port proximal to the occluder and communicating with a perfusion lumen.
- 5. The method of claim 1, wherein the carotid artery is the common carotid artery.
- 6. The method of claim 1, wherein the carotid artery is selected from the group consisting of the internal carotid artery and carotid siphon.
- 7. The method of claim 1, wherein the artery is the middle cerebral artery.
- 8. The method of claim 1, wherein the artery is the anterior cerebral artery.
- 9. The method of claim 1, wherein the occluder is a balloon which communicates with an inflation lumen.
- 10. The method of claim 1, wherein the catheter further comprises a chopping mechanism for removing the occlusion from the carotid or cerebral artery.
- 11. The method of claim 4, wherein the catheter further comprises a second balloon occluder proximal the perfusion port.
- 12. The method of claim 2, wherein the oxygenated medium is hypothermic.
- 13. The method of claim 1, further comprising the step of infusing pharmaceutical agent into the carotid artery through the aspiration port.
- 14. The method of claim 1, further comprising the step of localizing the thromboembolic material with intravascular ultrasound.
- 15. The method of claim 1, further comprising the step of localizing the thromboembolic material with carotid doppler.
- 16. The method of claim 1, further comprising the step of localizing the atheroma and establishing the direction of flow with transcranial doppler.
- 17. The method of claim 2, wherein the oxygenated medium is blood.
Parent Case Info
[0001] This is a continuation of U.S. application Ser. No. 09/547,951, filed Apr. 12, 2000, which is a continuation of U.S. application Ser. No. 09/228,718, filed Feb. 24, 1999, now U.S. Pat. No. 6,165,199, all of which are expressly incorporated herein by reference in their entirety.
Continuations (2)
|
Number |
Date |
Country |
Parent |
09547951 |
Apr 2000 |
US |
Child |
10012008 |
Oct 2001 |
US |
Parent |
09228718 |
Jan 1999 |
US |
Child |
09547951 |
Apr 2000 |
US |