Aneurysm treatment devices and methods
First Claim
1. An occlusion device for occluding a cerebral aneurysm comprisinga member comprising a porous, explosively reticulated, elastomeric matrix, wherein the porous, explosively reticulated elastomeric matrix has at least partially removed cell walls between adjoining pores of the porous, explosively reticulated elastomeric matrix, andat least one longitudinally extending reinforcing filament,wherein the porous, explosively reticulated elastomeric matrix comprises a cross-linked, biodurable, reticulated, resilient elastomeric matrix comprising interconnected and intercommunicating networks of pores, channels, and voids, configured to permit ingrowth of tissue into the interconnected and intercommunicating networks of pores, channels, and voids,wherein the elastomeric matrix comprises polycarbonate polyurethane-urea, polycarbonate polyurea-urethane, polycarbonate polyurethane, polycarbonate polysiloxane polyurethane, or polysiloxane polyurethane, or a copolymers thereof, or any mixture thereof,wherein the elastomeric matrix is at least partially hydrophobic,wherein the device is configured to assume a non-linear shape that conformally fills a targeted vascular site, andwherein the device is configured to prevent recanalization and migration after tissue ingrowth has taken place in the reticulated matrix.
2 Assignments
0 Petitions
Accused Products
Abstract
An aneurysm treatment device for in situ treatment of aneurysms comprises a collapsible member having a first shape wherein the first shape is an expanded geometric configuration, and a second shape, wherein the second shape is a collapsed configuration that is loadable into a catheter. The aneurysm treatment device is capable or returning to the first shape in the sac of an aneurysm upon deployment, where it occludes the aneurysm. In another embodiment an occlusion device comprises a flexible, longitudinally extending elastomeric matrix member that assumes a non-linear shape to conformally fill a targeted vascular site.
205 Citations
32 Claims
-
1. An occlusion device for occluding a cerebral aneurysm comprising
a member comprising a porous, explosively reticulated, elastomeric matrix, wherein the porous, explosively reticulated elastomeric matrix has at least partially removed cell walls between adjoining pores of the porous, explosively reticulated elastomeric matrix, and at least one longitudinally extending reinforcing filament, wherein the porous, explosively reticulated elastomeric matrix comprises a cross-linked, biodurable, reticulated, resilient elastomeric matrix comprising interconnected and intercommunicating networks of pores, channels, and voids, configured to permit ingrowth of tissue into the interconnected and intercommunicating networks of pores, channels, and voids, wherein the elastomeric matrix comprises polycarbonate polyurethane-urea, polycarbonate polyurea-urethane, polycarbonate polyurethane, polycarbonate polysiloxane polyurethane, or polysiloxane polyurethane, or a copolymers thereof, or any mixture thereof, wherein the elastomeric matrix is at least partially hydrophobic, wherein the device is configured to assume a non-linear shape that conformally fills a targeted vascular site, and wherein the device is configured to prevent recanalization and migration after tissue ingrowth has taken place in the reticulated matrix.
-
28. An occlusion device comprising
a member comprising a porous, explosively reticulated elastomeric matrix, wherein the porous, explosively reticulated elastomeric matrix by explosion has at least partially removed cell walls between adjoining pores of the porous, explosively reticulated elastomeric matrix such that the explosively reticulated elastomeric matrix comprises interconnected and intercommunicating networks of pores, channels, and voids, and at least one longitudinally extending component, wherein the interconnected and intercommunicating networks of pores, channels, and voids are configured to permit ingrowth of tissue into the interconnected and intercommunicating networks of pores, channels, and voids, wherein the device is configured to assume a non-linear shape that conformally fills a targeted vascular site.
-
29. An occlusion device comprising
a member comprising a porous, explosively reticulated elastomeric matrix, wherein the porous, explosively reticulated elastomeric matrix by explosion has at least partially removed cell walls between adjoining pores of the porous, explosively reticulated elastomeric matrix such that the explosively reticulated elastomeric matrix comprises interconnected and intercommunicating networks of pores, channels, and voids, and at least one longitudinally extending component, wherein the interconnected and intercommunicating networks of pores, channels, and voids is configured to permit ingrowth of tissue into the interconnected and intercommunicating networks of pores, channels, and voids, wherein the device is configured to be in a collapsed form and assume a non-linear shape in-situ within the aneurysm to conformally fill the aneurysm.
Specification