System and method for retaining vaso-occlusive devices within an aneurysm
First Claim
1. A vaso-occlusive device for use in occluding an aneurysm having an aneurysmal neck and an aneurysmal inner wall, comprising:
- a mesh-like structure comprising a proximal end and a distal end, at least one of the proximal and distal ends configured to be inserted through the aneurysmal neck when in an undeployed state, and configured to flare open and expand against at least a portion of the aneurysmal inner wall when in a deployed state.
10 Assignments
0 Petitions
Accused Products
Abstract
The present invention is directed to systems and methods for occluding an aneurysm having an aneurysmal neck and an aneurysmal inner wall. Generally, a device in accordance with the present invention includes a mesh-like structure that is integrally composed of a shape-memory alloy such as NiTi. The device is deployed within the aneurysm through the aneurysmal neck. The device is configured to be in a deployed state and an undeployed state, and is configured to transition from the undeployed state to the deployed state by exposure to a higher temperature and/or by being unconstrained. The device may function to retain finer vaso-occlusive devices such as vaso-occlusive coils and/or embolic liquids. Furthermore, the device itself may function as a vaso-occlusive device.
-
Citations
72 Claims
-
1. A vaso-occlusive device for use in occluding an aneurysm having an aneurysmal neck and an aneurysmal inner wall, comprising:
a mesh-like structure comprising a proximal end and a distal end, at least one of the proximal and distal ends configured to be inserted through the aneurysmal neck when in an undeployed state, and configured to flare open and expand against at least a portion of the aneurysmal inner wall when in a deployed state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 17)
-
14. A catheter assembly for occluding an aneurysm having an aneurysmal neck and an aneurysmal inner wall, comprising:
-
a delivery catheter having a distal end; and
a mesh-like structure detachably coupled to the distal end of the catheter, the mesh-like structure comprising a proximal end and a distal end, at least one of the proximal and distal ends configured to be inserted through the aneurysmal neck when in an undeployed state, and configured to flare open and expand against at least a portion of the aneurysmal inner wall when in a deployed state. - View Dependent Claims (15, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
-
-
28. A method of occluding an aneurysm with a mesh-like structure, the aneurysm having an aneurysmal neck and an aneurysmal inner wall, comprising:
-
delivering the mesh-like structure to the aneurysm;
inserting an end of the mesh-like structure through the aneurysmal neck; and
flaring the end of the mesh-like structure open to expand against at least a portion of the aneurysmal inner wall. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37)
-
-
38. A vaso-occlusive device for use in occluding an aneurysm having an aneurysmal neck and an aneurysmal inner wall, the aneurysm residing in a vessel having a vessel inner wall, the device comprising:
a mesh-like structure comprising a retainer and an anchor, the retainer configured to be inserted through the aneurysmal neck when in an undeployed state, and configured to expand against a portion of the aneurysmal inner wall surrounding the aneurysmal neck when in a deployed state, wherein a portion of the aneurysmal inner wall is not covered by the mesh-like structure, the anchor configured to expand against a portion of the vessel inner wall adjacent the aneurysmal neck when in a deployed state. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
-
50. A catheter assembly for occluding an aneurysm having an aneurysmal neck and an aneurysmal inner wall, comprising:
-
a delivery catheter having a distal end; and
a mesh-like structure detachably coupled to the distal end of the catheter, the mesh-like structure comprising a retainer and an anchor, the retainer configured to be inserted through the aneurysmal neck when in an undeployed state, and configured to expand against a portion of the aneurysmal inner wall surrounding the aneurysmal neck when in a deployed state, wherein a portion of the aneurysmal inner wall is not covered by the mesh-like structure, the anchor configured to expand against a portion of the vessel inner wall adjacent the aneurysmal neck when in a deployed state. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
-
-
62. A method of occluding an aneurysm with a mesh-like structure, the aneurysm having an aneurysmal neck and an aneurysmal inner wall, the aneurysm residing in a vessel having a vessel inner wall, comprising:
-
delivering the mesh-like structure to the aneurysm;
inserting a first end of the mesh-like structure through the aneurysmal neck;
expanding the first end of the mesh-like structure against a portion of the aneurysmal inner wall surrounding the aneurysmal neck, wherein a portion of the aneurysmal inner wall is not covered by the mesh-like structure; and
expanding a second end of the mesh-like structure against a portion of the vessel inner wall adjacent the aneurysmal neck to anchor the mesh-like structure. - View Dependent Claims (63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
-
Specification