Embolic coil delivery system
First Claim
Patent Images
1. An embolic coil delivery system, comprising:
- a flexible elongate body having a distal segment;
an embolic coil loaded on the flexible elongate body at the distal segment and contacting an outer surface of the flexible elongate body;
a delivery catheter sized to advance over the flexible elongate body during an embolic coil delivery procedure, wherein a distal segment of the delivery catheter contacts the embolic coil during the embolic coil delivery procedure;
a delivery sheath positioned over the embolic coil, and including a distal end attached to the flexible elongate body; and
wherein the distal end of the delivery sheath is removably attached to a proximal segment of the delivery sheath at a tear away section located at an axial position of the flexible elongate body distally spaced from the embolic coil;
wherein the flexible elongate body, the embolic coil and the delivery sheath move together as a unit to a delivery site;
wherein the embolic coil delivery system has a first configuration in which the embolic coil is covered by the delivery sheath, and a second configuration in which the proximal segment is detached from the distal end of the delivery sheath at a tear away section, and the embolic coil is uncovered and out of contact with the proximal segment.
3 Assignments
0 Petitions
Accused Products
Abstract
An embolic coil delivery system includes a flexible elongate body having a distal segment. An embolic coil is loaded on the flexible elongate body at the distal segment and contacts an outer surface of the flexible elongate body. The embolic coil delivery system also includes a delivery catheter sized to advance over the flexible elongate body during an embolic coil delivery procedure, wherein a distal segment of the delivery catheter contacts the embolic coil during the embolic coil delivery procedure.
-
Citations
16 Claims
-
1. An embolic coil delivery system, comprising:
-
a flexible elongate body having a distal segment; an embolic coil loaded on the flexible elongate body at the distal segment and contacting an outer surface of the flexible elongate body; a delivery catheter sized to advance over the flexible elongate body during an embolic coil delivery procedure, wherein a distal segment of the delivery catheter contacts the embolic coil during the embolic coil delivery procedure; a delivery sheath positioned over the embolic coil, and including a distal end attached to the flexible elongate body; and wherein the distal end of the delivery sheath is removably attached to a proximal segment of the delivery sheath at a tear away section located at an axial position of the flexible elongate body distally spaced from the embolic coil; wherein the flexible elongate body, the embolic coil and the delivery sheath move together as a unit to a delivery site; wherein the embolic coil delivery system has a first configuration in which the embolic coil is covered by the delivery sheath, and a second configuration in which the proximal segment is detached from the distal end of the delivery sheath at a tear away section, and the embolic coil is uncovered and out of contact with the proximal segment. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A preloaded wire guide for an embolic coil delivery system, comprising:
-
a mandril wire guide having a distal segment; an embolic coil loaded on the mandril wire guide at the distal segment and contacting an outer surface of the mandril wire guide; and a delivery sheath positioned over the embolic coil, and including a distal end attached to the mandril wire guide, and the distal end of the delivery sheath is removably attached to a proximal segment of the delivery sheath at a tear away section located at an axial position of the mandril wire guide distally spaced from the embolic coil; wherein the embolic coil is frictionally engaged with the outer surface of the mandril wire guide while positioned within the delivery sheath to maintain a relatively fixed position of the embolic coil relative to the mandril wire guide while the mandril wire guide is being maneuvered to a delivery site; wherein the mandril wire guide, the embolic coil and the delivery sheath move together as a unit to the delivery site; wherein the embolic coil delivery system has a first configuration in which the embolic coil is covered by the delivery sheath, and a second configuration in which the proximal segment is detached from the distal end of the delivery sheath at a tear away section, and the embolic coil is uncovered and out of contact with the proximal segment. - View Dependent Claims (7, 8, 9, 10)
-
-
11. A method of delivering an embolic coil to a delivery site within a patient with an embolic coil delivery system that includes a flexible elongate body having a distal segment;
- an embolic coil loaded on the flexible elongate body at the distal segment and contacting an outer surface of the flexible elongate body;
a delivery catheter sized to advance over the flexible elongate body during an embolic coil delivery procedure, wherein a distal segment of the delivery catheter contacts the embolic coil during the embolic coil delivery procedure;
a delivery sheath positioned over the embolic coil, and including a distal end attached to the flexible elongate body;
wherein a distal end of the delivery sheath is removably attached to the flexible elongate body a proximal segment of the delivery sheath at a tear away section located at an axial position of the flexible elongate body distally spaced from the embolic coil;
wherein the flexible elongate body, the embolic coil and the delivery sheath move together as a unit to a delivery site wherein the embolic coil delivery system has a first configuration in which the embolic coil is covered by the delivery sheath, and a second configuration in which the proximal segment is detached from the distal end of the delivery sheath at a tear away section, and the embolic coil is uncovered and out of contact with the proximal segment, and the method comprising steps of;loading the embolic coil around an outer surface of a distal segment of a flexible elongate body; advancing the distal segment of the flexible elongate body through the patient vessel to the delivery site with the embolic coil loaded on the distal segment; and unloading the embolic coil from the flexible elongate body at least in part by advancing the delivery catheter over the flexible elongate body and contacting the embolic coil with a distal segment of the delivery catheter; and wherein the embolic coil is frictionally engaged with the outer surface of the flexible elongate body to maintain a relatively fixed position of the embolic coil relative to the flexible elongate body while the distal segment of the flexible elongate body is being maneuvered to the delivery site during the advancing step; and wherein the flexible elongate body, the embolic coil and the- a delivery sheath move together as a unit to the delivery site. - View Dependent Claims (12, 13, 14, 15, 16)
- an embolic coil loaded on the flexible elongate body at the distal segment and contacting an outer surface of the flexible elongate body;
Specification