Claims
- 1. A method to navigate across an occlusion, comprising the steps of:
(a) creating a cavity in a vessel, wherein said vessel comprises said occlusion and wherein said cavity is created proximal to said occlusion; (b) introducing a fluid into said cavity, wherein said fluid is introduced under pressure sufficient enough to drive said fluid into the vasa vasorum accessible from said cavity; (c) making an image of said introduced fluid in said cavity and said vasa vasorum; and (d) navigating through said occlusion with a medical instrument using said image.
- 2. The method as set forth in claim 1, wherein said step of creating a cavity comprises the step of inflating a balloon, wherein said balloon is conformational and capable of creating a circumferential seal with said vessel, deploying a diaphragm, deploying a collapsible wedge, or deploying a barrier to retrograde said fluid flow.
- 3. The method as set forth in claim 2, wherein said fluid is introduced through a first lumen, wherein said first lumen extends across said balloon.
- 4. The method as set forth in claim 2, wherein said medical instrument is navigated through a first lumen, wherein said first lumen extends across said balloon.
- 5. The method as set forth in claim 1, wherein said step of creating a cavity comprises the step of inflating a balloon and wherein said step of navigating through said occlusion with said medical instrument comprises the step of delivering said medical instrument through a second lumen, wherein said second lumen extends across said balloon.
- 6. The method as set forth in claim 5, wherein said medical instrument comprises a stent, a guidewire, a debulking device, dissection device, or penetrating device.
- 7. The method as set forth in claim 1, further comprising the step of providing a feedback means to provide feedback of said pressure in said cavity and to regulate said pressure in said cavity.
- 8. The method as set forth in claim 1, further comprising the step of providing a feedback means to provide feedback of said pressure in said means to create a cavity and to regulate said pressure in said means to create a cavity.
- 9. The method as set forth in claim 1, wherein said image is a fluoroscopic image and said fluid comprises a fluoroscopic contrast agent, an MRI and said fluid comprises an MRI contrast agent, or an ultrasonic image and said fluid comprising an ultrasound contrast agent.
- 10. The method as set forth in claim 1, further comprising the step of providing an extraction means to extract substance from said cavity, wherein said substance is fluid, blood or occlusion material.
- 11. A device for navigating a medical instrument across an occlusion wherein said occlusion is located in a vessel, comprising:
(a) a means to establish a cavity in said vessel proximal to said occlusion; (b) a first lumen extended through said means to establish a cavity; and (c) a fluid injection means to introduce fluid through said first lumen, wherein said fluid is introduced under pressure sufficient enough to drive said fluid into the vasa vasorum accessible from said cavity.
- 12. The device as set forth in claim 11, wherein said first lumen allows delivery of said medical instrument.
- 13. The device as set forth in claim 11, further comprising a second lumen extended through said means to establish a cavity to allow passage of said medical instrument.
- 14. The device as set forth in claim 13, wherein said second lumen comprises a valve to regulate said pressure in said cavity.
- 15. The device as set forth in claim 11, wherein said first lumen comprises a valve to regulate said pressure in said cavity.
- 16. The device as set forth in claim 11, further comprising an extraction means to extract substance from said cavity, wherein said substance is fluid, blood or occlusion material.
- 17. The device as set forth in claim 11, further comprising a feedback means to provide feedback of said pressure in said cavity and to regulate said pressure in said cavity.
- 18. The device as set forth in claim 11, further comprising a feedback means to provide feedback of said pressure in said means to establish a cavity and to regulate said pressure in said means to create a cavity.
- 19. The device as set forth in claim 11, wherein said means to establish a cavity comprises an inflatable balloon wherein said balloon is conformational and capable of creating a circumferential seal with said vessel, deploying a diaphragm, deploying a collapsible wedge, or deploying a barrier to retrograde said fluid flow.
- 20. A system for navigating a medical instrument across an occlusion wherein said occlusion is located in a vessel, comprising:
(a) a means to establish a cavity in said vessel proximal to said occlusion, wherein said means to define a cavity comprises a first lumen extended through said means to define a cavity; (b) a means to introduce fluid through said first lumen, wherein said fluid is introduced under pressure sufficient enough to drive said fluid into the vasa vasorum accessible from said cavity; (c) a means to image said injected fluid in said cavity and said vasa vasorum; and (d) a means to navigate across said occlusion with said medical instrument using said image as guidance.
- 21. The system as set forth in claim 20, wherein said first lumen allows for delivery of said medical instrument.
- 22. The system as set forth in claim 20, wherein said means to establish a cavity further comprises a second lumen extended through said means to establish a cavity, wherein said second lumen allows for delivery of said medical instrument.
- 23. The system as set forth in claim 20, further comprising an extraction means to extract substance from said cavity, wherein said substance is fluid, blood or occlusion material.
- 24. The system as set forth in claim 20, wherein said means to image comprises a fluoroscopic contrast agent, an MRI and said fluid comprises an MRI contrast agent, or an ultrasonic imaging and said fluid comprising an ultrasound contrast agent.
- 25. A device for establishing a cavity in a vessel in a patient, comprising:
(a) a first balloon with a first lumen extended through said first balloon; (b) a second balloon with a second lumen extended through said second balloon; and (c) a hollow element extended from outside the body of said patient through said first lumen and through said second lumen, wherein the part of said hollow element in between said first balloon and said second balloon comprises one or more openings.
- 26. The device as set forth in claim 25, further comprising an inflation means, wherein said inflation means inflates said first balloon or said second balloon, or inflates said first balloon and said second balloon.
- 27. The device as set forth in claim 25, wherein said inflated first and second balloon are conformational and are capable of creating a circumferential seal with said vessel.
- 28. The device as set forth in claim 25, further comprising a fluid injection means connected to said hollow element to introduce fluid through said one or more openings in said cavity.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is cross-referenced to and claims priority from U.S. Provisional application No. 60/364,284 filed Mar. 13, 2002, which is hereby incorporated by reference.
Provisional Applications (1)
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Number |
Date |
Country |
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60364284 |
Mar 2002 |
US |