Intracranial stent and method of use

• US 8,663,304 B2
• Filed: 06/10/2008
• Issued: 03/04/2014
• Est. Priority Date: 12/09/1996
• Status: Expired due to Fees

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Wallace, George, Lenker, Jay, Berryman, Thomas J., Greene, Robert R., Brenneman, Rodney
• Primary Examiner(s): Severson, Ryan
• Assistant Examiner(s): SHI, KATHERINE MENGLIN
• Application Number:
  US12/136,749
• Publication Number:
  US 20080243224A1
• Time in Patent Office: 2,093 Days
• Field of Search: 623/1.11, 623/1.12, 623/1.15, 623/1.2, 623/1.23, 606/108, 606/191, 606/194, 606/198, 606/200, 128/898
• US Class Current: 623/1.12
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12118 for positioning in conjunction with a stent
• CPC Class Codes: A61B 17/1214 Coils or wires
• CPC Class Codes: A61B 17/122 Clamps or clips , e.g. for the umbilical cord for the vas deferens A61F6/206
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/12063 electrolytically detachable
• CPC Class Codes: A61B 2017/12068 detachable by heat
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/92 Stents in the form of a rolled-up sheet expanding after insertion into the vessel , e.g. with a spiral shape in cross-section
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/97 the outer sleeve being splittable
• CPC Class Codes: A61F 2002/823 Stents, different from stent-grafts, adapted to cover an aneurysm
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2210/0076 multilayered, e.g. laminated structures
• CPC Class Codes: A61F 2230/0095 Saddle-shaped
• CPC Class Codes: A61F 2250/0071 breakable or frangible
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers

Abstract

A stent and stent catheter for intra-cranial use, and a method of treating vascular disease in blood vessels in the brain.

Claims

1. A method of treating a diseased blood vessel of the brain of a patient, said method comprising:

percutaneously inserting a self-expanding stent into a carotid artery of the patient and navigating the stent mounted on a delivery catheter through the carotid artery and into the blood vessel of the brain, the blood vessel having an aneurysm, wherein the stent comprises two overlapping edges that extend along a longitudinal axis of the stent;

ejecting the stent from the delivery catheter into the blood vessel;

inserting a treatment device through a wall of the stent and into the aneurysm, thereby treating the aneurysm;

withdrawing the stent, at least partially, into the delivery catheter; and

removing the delivery catheter and removing the stent.

2. The method of claim 1, wherein the blood vessel is one of the maxillary artery, a middle meningeal artery, a frontal superficial temporal artery, a parietal superficial temporal artery, the vertebral artery, a basilar artery, a cerebral artery including a posterior cerebral artery, the circle of Willis, the anterior cerebral artery, the middle cerebral artery, the posterior communicating artery, and the anterior communicating artery.

3. The method of claim 1, wherein the stent comprises a rolled-sheet stent.

4. The method of claim 1, wherein the withdrawing of the stent into the delivery catheter comprises repositioning the stent.

5. The method of claim 1, wherein the treatment device comprises at least one aneurysm coil.

6. The method of claim 1, wherein the removing of the stent occurs during the same interventional procedure during which the ejecting occurs.

7. The method of claim 1, wherein the stent is perforate.

8. The method of claim 1, wherein the stent is imperforate.

9. The method of claim 1, wherein the inserting of the treatment device is through a second catheter.

10. A method of treating an aneurysm in a blood vessel in the brain of a patient, said method comprising:

percutaneously inserting a self-expanding stent into a carotid artery of the patient and navigating the stent mounted on a first catheter through the carotid artery and into the blood vessel of the brain, wherein the stent comprises two overlapping edges that extend along a longitudinal axis of the stent;

ejecting the stent from the first catheter into the blood vessel;

inserting a treatment device through a wall of the stent and into the aneurysm via a second catheter, thereby treating the aneurysm;

withdrawing the stent, at least partially, into the first catheter; and

after the withdrawing, removing the stent from the patient.

11. The method of claim 10, wherein the blood vessel is one of the maxillary artery, a middle meningeal artery, a frontal superficial temporal artery, a parietal superficial temporal artery, the vertebral artery, a basilar artery, a cerebral artery including a posterior cerebral artery, the circle of Willis, the anterior cerebral artery, the middle cerebral artery, the posterior communicating artery, and the anterior communicating artery.

12. The method of claim 10, wherein the stent comprises a rolled sheet stent.

13. The method of claim 10, wherein the removing of the stent occurs during the same interventional procedure during which the ejecting occurs.

14. The method of claim 10, wherein the withdrawing of the stent comprises repositioning the stent.

15. The method of claim 10, wherein the treatment device comprises at least one aneurysm coil.

16. The method of claim 10, wherein the stent is perforate.

17. The method of claim 10, wherein the stent is imperforate.

18. A method of treating a diseased blood vessel in the brain of a patient, said method comprising:

percutaneously inserting a self-expanding stent, comprising two overlapping edges that extend along a longitudinal axis of the stent, into a carotid artery of the patient and navigating the stent mounted on a delivery catheter through the carotid artery and into the blood vessel of the brain, the blood vessel having an aneurysm;

temporarily deploying the stent from the delivery catheter into the blood vessel of the brain;

thereafter treating the diseased blood vessel by inserting at least one aneurysm coil through a wall of the stent and into the aneurysm; and

thereafter withdrawing the stent into the delivery catheter and removing the stent and delivery catheter from the blood vessel.

19. The method of claim 18, wherein the blood vessel is one of the maxillary artery, a middle meningeal artery, a frontal superficial temporal artery, a parietal superficial temporal artery, the vertebral artery, a basilar artery, a cerebral artery including a posterior cerebral artery, the circle of Willis, the anterior cerebral artery, the middle cerebral artery, the posterior communicating artery, and the anterior communicating artery.

20. The method of claim 18, wherein the stent comprises a rolled-sheet stent.

21. The method of claim 18, wherein the removing of the stent occurs during the same interventional procedure during which the deploying occurs.

22. The method of claim 18, wherein the stent is perforate.

23. The method of claim 18, wherein the stent is imperforate.

24. The method of claim 18, wherein the inserting of the at least one aneurysm coil is through a second catheter.