Stable coil designs
First Claim
1. A vaso-occlusive device comprising a strand of a member that forms a series of loops, each loop lying approximately within a plane that forms an angle with a plane of an adjacent loop in the series, wherein one of the loops in the series is formed by winding the strand of member in a first direction, with an adjacent loop in the series formed by winding the strand of member in a second direction to thereby provide an inflection point between the respective one of the series of loops and the adjacent loop in the series.
8 Assignments
0 Petitions
Accused Products
Abstract
This is an implantable vaso-occlusive device. The device has a complex, three-dimensional structure in a relaxed configuration that may be used in the approximate shape of an anatomical cavity. It may be deployed in the approximate shape of a sphere, an ovoid, a clover, a box-like structure or other distorted spherical shape. The loops forming the relaxed configuration may pass through the interior of the structure. The device is a self-forming shape made from a pre-formed linear vaso-occlusion member. Fibers may be introduced onto the device and affixed to the pre-formed linear member. The constituent member may be also be covered with a fibrous braid. The device is typically introduced through a catheter. The device is passed axially through the catheter sheath and assumes its form upon exiting the catheter without further action. The invention also includes methods of winding the anatomically shaped vaso-occlusive device into appropriately shaped forms and annealing them to form various devices.
241 Citations
33 Claims
- 1. A vaso-occlusive device comprising a strand of a member that forms a series of loops, each loop lying approximately within a plane that forms an angle with a plane of an adjacent loop in the series, wherein one of the loops in the series is formed by winding the strand of member in a first direction, with an adjacent loop in the series formed by winding the strand of member in a second direction to thereby provide an inflection point between the respective one of the series of loops and the adjacent loop in the series.
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16. A vaso-occlusive device comprising at least one substantially linear stand of a vaso-occlusive member wound into a three-dimensional relaxed configuration, the three dimensional relaxed configuration comprising a first loop, a second loop, a third loop, and a fourth loop, wherein
the second loop is approximately perpendicular to the first loop, the third loop is approximately perpendicular to the first and the second loops, and the fourth loop is approximately perpendicular to the second and the third loops.
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25. A vaso-occlusive device comprising a strand of a member that forms a first loop, a second loop that is directly connected to the first loop such that no loop is formed between the first and the second loops, and a third loop that is directly connected to the second loop such that no loop is formed between the second and the third loops;
wherein the first loop lies approximately within a first plane, the second loop lies approximately within a second plane, and the third loop lies approximately within a third plane, the first plane forming a non-zero degree angle with the second plane, and the second plane forming a non-zero degree angle with the third plane, and wherein the first, second, and third planes are oriented such that they collectively form a substantially three-dimensional, non-planar configuration. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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33. A vaso-occlusive device comprising a strand of a member that forms a first loop, a second loop that is directly connected to the first loop, and a third loop that is directly connected to the second loop,
wherein the first loop lies approximately within a first plane, the second loop lies approximately within a second plane, and the third loop lies approximately within a third plane, the first plane forming an angle with the second plane, and the second plane forming an angle with the third plane, and wherein the first loop is formed by winding the strand of member in a first direction, and the second loop is formed by winding the strand of member in a second direction to thereby provide an inflection point between the first loop and the second loop.
Specification
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- Resources
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Current AssigneeStryker European Operations Holdings, LLC (Stryker Corporation)
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Original AssigneeBoston Scientific Scimed (Boston Scientific Corporation)
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InventorsChen, Mary M., Ho, Liem, Wallace, Michael P., Levine, Marc-Alan, Hui, Delilah Yin
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Primary Examiner(s)Reip, David O.
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Application NumberUS09/974,068Publication NumberTime in Patent Office1,239 DaysField of Search606/151, 606/157, 606/158, 606/191, 606/195, 606/198, 606/200, 606/194, 623/1.1, 623/1.15, 623/1.18, 623/1.2, 623/1.21, 623/1.22US Class Current606/200CPC Class CodesA61B 17/12022 Occluding by internal devic...A61B 17/12145 having a pre-set deployed t...
